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Diffstat (limited to 'stone_soup/crawl-ref/source/monstuff.cc')
| -rw-r--r-- | stone_soup/crawl-ref/source/monstuff.cc | 5235 |
1 files changed, 0 insertions, 5235 deletions
diff --git a/stone_soup/crawl-ref/source/monstuff.cc b/stone_soup/crawl-ref/source/monstuff.cc deleted file mode 100644 index f8305f5e4d..0000000000 --- a/stone_soup/crawl-ref/source/monstuff.cc +++ /dev/null @@ -1,5235 +0,0 @@ -/* - * File: monstuff.cc - * Summary: Misc monster related functions. - * Written by: Linley Henzell - * - * Change History (most recent first): - * - * <8> 7 Aug 2001 MV Inteligent monsters now pick up gold - * <7> 26 Mar 2001 GDL Fixed monster reaching - * <6> 13 Mar 2001 GDL Rewrite of monster AI - * <5> 31 July 2000 GDL More Manticore fixes. - * <4> 29 July 2000 JDJ Fixed a bunch of places in handle_pickup where MSLOT_WEAPON - * was being erroneously used. - * <3> 25 July 2000 GDL Fixed Manticores - * <2> 11/23/99 LRH Upgraded monster AI - * <1> -/--/-- LRH Created - */ - -#include "AppHdr.h" -#include "monstuff.h" - -#include <stdlib.h> -#include <string.h> -#include <stdio.h> - -#ifdef DOS -#include <conio.h> -#endif - -#include "externs.h" - -#include "beam.h" -#include "cloud.h" -#include "debug.h" -#include "dungeon.h" -#include "fight.h" -#include "itemname.h" -#include "items.h" -#include "itemprop.h" -#include "misc.h" -#include "monplace.h" -#include "monspeak.h" -#include "mon-util.h" -#include "mstuff2.h" -#include "player.h" -#include "randart.h" -#include "religion.h" -#include "spl-cast.h" -#include "spells2.h" -#include "spells4.h" -#include "stuff.h" -#include "view.h" - -static bool handle_special_ability(struct monsters *monster, bolt & beem); -static bool handle_pickup(struct monsters *monster); -static void handle_behaviour(struct monsters *monster); -static void mons_in_cloud(struct monsters *monster); -static void monster_move(struct monsters *monster); -static bool plant_spit(struct monsters *monster, struct bolt &pbolt); -static int map_wand_to_mspell(int wand_type); - -// [dshaligram] Doesn't need to be extern. -static int mmov_x, mmov_y; - -static int compass_x[8] = { -1, 0, 1, 1, 1, 0, -1, -1 }; -static int compass_y[8] = { -1, -1, -1, 0, 1, 1, 1, 0 }; - -static bool immobile_monster[MAX_MONSTERS]; - -#define FAR_AWAY 1000000 // used in monster_move() - -// This function creates an arteficial item to represent a mimic's appearance. -// Eventually, mimics could be redone to be more like Dancing wepaons... -// there'd only be one type and it would look like the item it carries. -- bwr -void get_mimic_item( const struct monsters *mimic, item_def &item ) -{ - ASSERT( mimic != NULL && mons_is_mimic( mimic->type ) ); - - item.base_type = OBJ_UNASSIGNED; - item.sub_type = 0; - item.special = 0; - item.colour = 0; - item.flags = 0; - item.quantity = 1; - item.plus = 0; - item.plus2 = 0; - item.x = mimic->x; - item.y = mimic->y; - item.link = NON_ITEM; - - int prop = 127 * mimic->x + 269 * mimic->y; - - switch (mimic->type) - { - case MONS_WEAPON_MIMIC: - item.base_type = OBJ_WEAPONS; - item.sub_type = (59 * mimic->x + 79 * mimic->y) % NUM_WEAPONS; - - prop %= 100; - - if (prop < 20) - { - item.flags |= ISFLAG_RANDART; - item.special = ((mimic->x << 8 + mimic->y) & RANDART_SEED_MASK); - } - else if (prop < 50) - set_equip_desc( item, ISFLAG_GLOWING ); - else if (prop < 80) - set_equip_desc( item, ISFLAG_RUNED ); - else if (prop < 85) - set_equip_race( item, ISFLAG_ORCISH ); - else if (prop < 90) - set_equip_race( item, ISFLAG_DWARVEN ); - else if (prop < 95) - set_equip_race( item, ISFLAG_ELVEN ); - break; - - case MONS_ARMOUR_MIMIC: - item.base_type = OBJ_ARMOUR; - item.sub_type = (59 * mimic->x + 79 * mimic->y) % NUM_ARMOURS; - - prop %= 100; - - if (prop < 20) - { - item.flags |= ISFLAG_RANDART; - item.special = ((mimic->x << 8 + mimic->y) & RANDART_SEED_MASK); - } - else if (prop < 40) - set_equip_desc( item, ISFLAG_GLOWING ); - else if (prop < 60) - set_equip_desc( item, ISFLAG_RUNED ); - else if (prop < 80) - set_equip_desc( item, ISFLAG_EMBROIDERED_SHINY ); - else if (prop < 85) - set_equip_race( item, ISFLAG_ORCISH ); - else if (prop < 90) - set_equip_race( item, ISFLAG_DWARVEN ); - else if (prop < 95) - set_equip_race( item, ISFLAG_ELVEN ); - break; - - case MONS_SCROLL_MIMIC: - item.base_type = OBJ_SCROLLS; - item.sub_type = prop % NUM_SCROLLS; - break; - - case MONS_POTION_MIMIC: - item.base_type = OBJ_POTIONS; - item.sub_type = prop % NUM_POTIONS; - break; - - case MONS_GOLD_MIMIC: - default: - item.base_type = OBJ_GOLD; - item.quantity = 5 + prop % 30; - break; - } - - item_colour( item ); // also sets special vals for scrolls/poitions -} - -// Sets the colour of a mimic to match its description... should be called -// whenever a mimic is created or teleported. -- bwr -int get_mimic_colour( struct monsters *mimic ) -{ - ASSERT( mimic != NULL && mons_is_mimic( mimic->type ) ); - - if (mimic->type == MONS_SCROLL_MIMIC) - return (LIGHTGREY); - else if (mimic->type == MONS_GOLD_MIMIC) - return (YELLOW); - - item_def item; - get_mimic_item( mimic, item ); - - return (item.colour); -} - -// monster curses a random player inventory item: -bool curse_an_item( char which, char power ) -{ - UNUSED( power ); - - /* use which later, if I want to curse weapon/gloves whatever - which, for now: 0 = non-mummy, 1 = mummy (potions as well) - don't change mitm.special of !odecay */ - - int count = 0; - int item = ENDOFPACK; - - for (int i = 0; i < ENDOFPACK; i++) - { - if (!is_valid_item( you.inv[i] )) - continue; - - if (you.inv[i].base_type == OBJ_WEAPONS - || you.inv[i].base_type == OBJ_ARMOUR - || you.inv[i].base_type == OBJ_JEWELLERY - || you.inv[i].base_type == OBJ_POTIONS) - { - if (item_cursed( you.inv[i] )) - continue; - - if (you.inv[i].base_type == OBJ_POTIONS - && (which != 1 || you.inv[i].sub_type == POT_DECAY)) - { - continue; - } - - // item is valid for cursing, so we'll give it a chance - count++; - if (one_chance_in( count )) - item = i; - } - } - - // any item to curse? - if (item == ENDOFPACK) - return (false); - - // curse item: - - /* problem: changes large piles of potions */ - /* don't change you.inv_special (just for fun) */ - if (you.inv[item].base_type == OBJ_POTIONS) - { - you.inv[item].sub_type = POT_DECAY; - unset_ident_flags( you.inv[item], ISFLAG_IDENT_MASK ); // all different - } - else - do_curse_item( you.inv[item] ); - - return (true); -} - -static void monster_drop_ething(struct monsters *monster, - bool mark_item_origins = false) -{ - /* drop weapons & missiles last (ie on top) so others pick up */ - int i; // loop variable {dlb} - bool destroyed = false; - bool hostile_grid = false; - - if (grd[monster->x][monster->y] == DNGN_LAVA || - grd[monster->x][monster->y] == DNGN_DEEP_WATER) - { - hostile_grid = true; - } - - for (i = MSLOT_GOLD; i >= MSLOT_WEAPON; i--) - { - int item = monster->inv[i]; - - if (item != NON_ITEM) - { - if (hostile_grid) - { - destroyed = true; - destroy_item( item ); - } - else - { - move_item_to_grid( &item, monster->x, monster->y ); - if (mark_item_origins && is_valid_item(mitm[item])) - { - origin_set_monster(mitm[item], monster); - } - } - - monster->inv[i] = NON_ITEM; - } - } - - if (destroyed) - { - if (grd[monster->x][monster->y] == DNGN_LAVA) - mpr("You hear a hissing sound.", MSGCH_SOUND); - else - mpr("You hear a splashing sound.", MSGCH_SOUND); - } -} // end monster_drop_ething() - -static void place_monster_corpse(struct monsters *monster) -{ - int corpse_class = mons_species(monster->type); - - if (mons_has_ench(monster, ENCH_SHAPESHIFTER)) - corpse_class = MONS_SHAPESHIFTER; - else if (mons_has_ench(monster, ENCH_GLOWING_SHAPESHIFTER)) - corpse_class = MONS_GLOWING_SHAPESHIFTER; - - if (mons_weight(corpse_class) == 0 - || grd[monster->x][monster->y] == DNGN_LAVA - || grd[monster->x][monster->y] == DNGN_DEEP_WATER || coinflip()) - { - return; - } - - int o = get_item_slot(); - if (o == NON_ITEM) - return; - - mitm[o].flags = 0; - mitm[o].base_type = OBJ_CORPSES; - mitm[o].plus = corpse_class; - mitm[o].plus2 = 0; // butcher work done - mitm[o].sub_type = CORPSE_BODY; - mitm[o].special = 210; // rot time - mitm[o].colour = mons_colour(corpse_class); - mitm[o].quantity = 1; - - if (mitm[o].colour == BLACK) - mitm[o].colour = monster->number; - - // Don't care if 'o' is changed, and it shouldn't be (corpses don't stack) - move_item_to_grid( &o, monster->x, monster->y ); -} // end place_monster_corpse() - -void monster_die(struct monsters *monster, char killer, int i) -{ - int dmi; // dead monster's inventory - int monster_killed = monster_index(monster); - bool death_message = mons_near(monster) && player_monster_visible(monster); - - // From time to time Trog gives you a little bonus - if (killer == KILL_YOU && you.berserker) - { - if (you.religion == GOD_TROG - && (!player_under_penance() && you.piety > random2(1000))) - { - int bonus = 3 + random2avg( 10, 2 ); - - you.berserker += bonus; - you.might += bonus; - haste_player( bonus ); - - mpr( "You feel the power of Trog in you as your rage grows.", - MSGCH_GOD, GOD_TROG ); - } - else if (wearing_amulet( AMU_RAGE ) && one_chance_in(30)) - { - int bonus = 2 + random2(4); - - you.berserker += bonus; - you.might += bonus; - haste_player( bonus ); - - mpr( "Your amulet glows a violent red." ); - } - } - - if (you.prev_targ == monster_killed) - you.prev_targ = MHITNOT; - - const bool pet_kill = (MON_KILL(killer) && ((i >= 0 && i < 200) - && mons_friendly(&menv[i]))); - - if (monster->type == MONS_GIANT_SPORE - || monster->type == MONS_BALL_LIGHTNING) - { - if (monster->hit_points < 1 && monster->hit_points > -15) - return; - } - else if (monster->type == MONS_FIRE_VORTEX - || monster->type == MONS_SPATIAL_VORTEX) - { - simple_monster_message( monster, " dissipates!", MSGCH_MONSTER_DAMAGE, - MDAM_DEAD ); - - if (!testbits(monster->flags, MF_CREATED_FRIENDLY)) - { - if (YOU_KILL(killer)) - gain_exp( exper_value( monster ) ); - else if (pet_kill) - gain_exp( exper_value( monster ) / 2 + 1 ); - } - - if (monster->type == MONS_FIRE_VORTEX) - place_cloud(CLOUD_FIRE_MON, monster->x, monster->y, 2 + random2(4)); - } - else if (monster->type == MONS_SIMULACRUM_SMALL - || monster->type == MONS_SIMULACRUM_LARGE) - { - simple_monster_message( monster, " vaporizes!", MSGCH_MONSTER_DAMAGE, - MDAM_DEAD ); - - if (!testbits(monster->flags, MF_CREATED_FRIENDLY)) - { - if (YOU_KILL(killer)) - gain_exp( exper_value( monster ) ); - else if (pet_kill) - gain_exp( exper_value( monster ) / 2 + 1 ); - } - - place_cloud(CLOUD_COLD_MON, monster->x, monster->y, 2 + random2(4)); - } - else if (monster->type == MONS_DANCING_WEAPON) - { - simple_monster_message(monster, " falls from the air.", - MSGCH_MONSTER_DAMAGE, MDAM_DEAD); - - if (!testbits(monster->flags, MF_CREATED_FRIENDLY)) - { - if (YOU_KILL(killer)) - gain_exp( exper_value( monster ) ); - else if (pet_kill) - gain_exp( exper_value( monster ) / 2 + 1 ); - } - } - else - { - switch (killer) - { - case KILL_YOU: /* You kill in combat. */ - case KILL_YOU_MISSILE: /* You kill by missile or beam. */ - { - bool created_friendly = - testbits(monster->flags, MF_CREATED_FRIENDLY); - - strcpy(info, "You "); - strcat(info, (wounded_damaged(monster->type)) ? "destroy" : "kill"); - strcat(info, " "); - strcat(info, ptr_monam(monster, DESC_NOCAP_THE)); - strcat(info, "!"); - - if (death_message) - mpr(info, MSGCH_MONSTER_DAMAGE, MDAM_DEAD); - - if (!created_friendly) - { - gain_exp(exper_value( monster )); - } - else - { - if (death_message) - mpr("That felt strangely unrewarding."); - } - - // Xom doesn't care who you killed: - if (you.religion == GOD_XOM - && random2(70) <= 10 + monster->hit_dice) - { - Xom_acts(true, 1 + random2(monster->hit_dice), false); - } - - // Trying to prevent summoning abuse here, so we're trying to - // prevent summoned creatures from being being done_good kills, - // Only affects monsters friendly when created. - if (!created_friendly) - { - if (you.duration[DUR_PRAYER]) - { - if (mons_holiness(monster) == MH_NATURAL) - did_god_conduct(DID_DEDICATED_KILL_LIVING, - monster->hit_dice); - - if (mons_holiness(monster) == MH_UNDEAD) - did_god_conduct(DID_DEDICATED_KILL_UNDEAD, - monster->hit_dice); - - if (mons_holiness(monster) == MH_DEMONIC) - did_god_conduct(DID_DEDICATED_KILL_DEMON, - monster->hit_dice); - - //jmf: Trog hates wizards - if (mons_class_flag(monster->type, M_ACTUAL_SPELLS)) - did_god_conduct(DID_DEDICATED_KILL_WIZARD, - monster->hit_dice); - - //jmf: maybe someone hates priests? - if (mons_class_flag(monster->type, M_PRIEST)) - did_god_conduct(DID_DEDICATED_KILL_PRIEST, - monster->hit_dice); - } - - if (mons_holiness(monster) == MH_HOLY) - did_god_conduct(DID_KILL_ANGEL, monster->hit_dice); - } - - // Divine health and mp restoration doesn't happen when killing - // born-friendly monsters. The mutation still applies, however. - if (you.mutation[MUT_DEATH_STRENGTH] - || (!created_friendly && - you.religion == GOD_MAKHLEB && you.duration[DUR_PRAYER] && - (!player_under_penance() && random2(you.piety) >= 30))) - { - if (you.hp < you.hp_max) - { - mpr("You feel a little better."); - inc_hp(monster->hit_dice + random2(monster->hit_dice), - false); - } - } - - if (!created_friendly - && (you.religion == GOD_MAKHLEB || you.religion == GOD_VEHUMET) - && you.duration[DUR_PRAYER] - && (!player_under_penance() && random2(you.piety) >= 30)) - { - if (you.magic_points < you.max_magic_points) - { - mpr("You feel your power returning."); - inc_mp( 1 + random2(monster->hit_dice / 2), false ); - } - } - - if (you.duration[DUR_DEATH_CHANNEL] - && mons_holiness(monster) == MH_NATURAL - && mons_weight(mons_species(monster->type))) - { - if (create_monster( MONS_SPECTRAL_THING, 0, BEH_FRIENDLY, - monster->x, monster->y, you.pet_target, - mons_species(monster->type)) != -1) - { - if (death_message) - mpr("A glowing mist starts to gather..."); - } - } - break; - } - - case KILL_MON: /* Monster kills in combat */ - case KILL_MON_MISSILE: /* Monster kills by missile or beam */ - simple_monster_message(monster, " dies!", MSGCH_MONSTER_DAMAGE, - MDAM_DEAD); - - // no piety loss if god gifts killed by other monsters - if (mons_friendly(monster) && !testbits(monster->flags,MF_GOD_GIFT)) - did_god_conduct(DID_FRIEND_DIES, 1 + (monster->hit_dice / 2)); - - // Trying to prevent summoning abuse here, so we're trying to - // prevent summoned creatures from being being done_good kills. - // Only affects creatures which were friendly when summoned. - if (!testbits(monster->flags, MF_CREATED_FRIENDLY) && pet_kill) - { - bool notice = false; - - gain_exp(exper_value( monster ) / 2 + 1); - - int targ_holy = mons_holiness(monster), - attacker_holy = mons_holiness(&menv[i]); - - if (attacker_holy == MH_UNDEAD) - { - if (targ_holy == MH_NATURAL) - notice |= - did_god_conduct(DID_LIVING_KILLED_BY_UNDEAD_SLAVE, - monster->hit_dice); - } - else if (you.religion == GOD_VEHUMET - || testbits( menv[i].flags, MF_GOD_GIFT )) - { - // Yes, we are splitting undead pets from the others - // as a way to focus Necomancy vs Summoning (ignoring - // Summon Wraith here)... at least we're being nice and - // putting the natural creature Summons together with - // the Demon ones. Note that Vehumet gets a free - // pass here since those followers are assumed to - // come from Summoning spells... the others are - // from invocations (Zin, TSO, Makh, Kiku). -- bwr - - if (targ_holy == MH_NATURAL) - { - notice |= did_god_conduct( DID_LIVING_KILLED_BY_SERVANT, - monster->hit_dice ); - - if (mons_class_flag( monster->type, M_EVIL )) - { - notice |= - did_god_conduct( - DID_NATURAL_EVIL_KILLED_BY_SERVANT, - monster->hit_dice ); - } - } - else if (targ_holy == MH_DEMONIC) - { - notice |= did_god_conduct( DID_DEMON_KILLED_BY_SERVANT, - monster->hit_dice ); - } - else if (targ_holy == MH_UNDEAD) - { - notice |= did_god_conduct( DID_UNDEAD_KILLED_BY_SERVANT, - monster->hit_dice ); - } - } - - // Angel kills are always noticed. - if (targ_holy == MH_HOLY) - { - notice |= did_god_conduct( DID_ANGEL_KILLED_BY_SERVANT, - monster->hit_dice ); - } - - if (you.religion == GOD_VEHUMET - && notice - && (!player_under_penance() && random2(you.piety) >= 30)) - { - /* Vehumet - only for non-undead servants (coding - convenience, no real reason except that Vehumet - prefers demons) */ - if (you.magic_points < you.max_magic_points) - { - mpr("You feel your power returning."); - inc_mp( 1 + random2(monster->hit_dice / 2), false ); - } - } - } - break; - - /* Monster killed by trap/inanimate thing/itself/poison not from you */ - case KILL_MISC: - simple_monster_message(monster, " dies!", MSGCH_MONSTER_DAMAGE, - MDAM_DEAD); - break; - - case KILL_RESET: - /* Monster doesn't die, just goes back to wherever it came from - This must only be called by monsters running out of time (or - abjuration), because it uses the beam variables! Or does it??? */ - simple_monster_message( monster, - " disappears in a puff of smoke!" ); - - place_cloud( CLOUD_GREY_SMOKE_MON + random2(3), monster->x, - monster->y, 1 + random2(3) ); - - // fall-through - - case KILL_DISMISSED: - for (dmi = MSLOT_GOLD; dmi >= MSLOT_WEAPON; dmi--) - { /* takes whatever it's carrying back home */ - if (monster->inv[dmi] != NON_ITEM) - destroy_item(monster->inv[dmi]); - - monster->inv[dmi] = NON_ITEM; - } - break; - } - } - - if (monster->type == MONS_MUMMY) - { - if (YOU_KILL(killer)) - { - if (curse_an_item(1, 0)) - mpr("You feel nervous for a moment...", MSGCH_MONSTER_SPELL); - } - } - else if (monster->type == MONS_GUARDIAN_MUMMY - || monster->type == MONS_GREATER_MUMMY - || monster->type == MONS_MUMMY_PRIEST) - { - if (YOU_KILL(killer)) - { - mpr("You feel extremely nervous for a moment...", - MSGCH_MONSTER_SPELL); - - miscast_effect( SPTYP_NECROMANCY, - 3 + (monster->type == MONS_GREATER_MUMMY) * 8 - + (monster->type == MONS_MUMMY_PRIEST) * 5, - random2avg(88, 3), 100, "a mummy death curse" ); - } - } - else if (monster->type == MONS_BORIS) - { - // XXX: actual blood curse effect for Boris? -- bwr - - if (one_chance_in(5)) - mons_speaks( monster ); - else - { - // Provide the player with an ingame clue to Boris' return. -- bwr - const int tmp = random2(6); - simple_monster_message( monster, - (tmp == 0) ? " says, \"You haven't seen the last of me!\"" : - (tmp == 1) ? " says, \"I'll get you next time!\"" : - (tmp == 2) ? " says, \"This isn't over yet!\"" : - (tmp == 3) ? " says, \"I'll be back!\"" : - (tmp == 4) ? " says, \"This isn't the end, its only just beginning!\"" : - (tmp == 5) ? " says, \"Kill me? I think not!\"" - : " says, \"You cannot defeat me so easily!\"", - MSGCH_TALK ); - } - - // Now that Boris is dead, he's a valid target for monster - // creation again. -- bwr - you.unique_creatures[ monster->type - 280 ] = 0; - } - - if (killer != KILL_RESET && killer != KILL_DISMISSED) - { - you.kills.record_kill(monster, killer, pet_kill); - - if (mons_has_ench(monster, ENCH_ABJ_I, ENCH_ABJ_VI)) - { - if (mons_weight(mons_species(monster->type))) - { - if (monster->type == MONS_SIMULACRUM_SMALL - || monster->type == MONS_SIMULACRUM_LARGE) - { - simple_monster_message( monster, " vaporizes!" ); - - place_cloud( CLOUD_COLD_MON, monster->x, monster->y, - 1 + random2(3) ); - } - else - { - simple_monster_message(monster, - "'s corpse disappears in a puff of smoke!"); - - place_cloud( CLOUD_GREY_SMOKE_MON + random2(3), - monster->x, monster->y, 1 + random2(3) ); - } - } - } - else - { - // have to add case for disintegration effect here? {dlb} - place_monster_corpse(monster); - } - } - - monster_drop_ething(monster, - killer == KILL_YOU_MISSILE - || killer == KILL_YOU - || pet_kill); - monster_cleanup(monster); -} // end monster_die - -void monster_cleanup(struct monsters *monster) -{ - unsigned int monster_killed = monster_index(monster); - int dmi = 0; - - for (unsigned char j = 0; j < NUM_MON_ENCHANTS; j++) - monster->enchantment[j] = ENCH_NONE; - - monster->flags = 0; - monster->type = -1; - monster->hit_points = 0; - monster->max_hit_points = 0; - monster->hit_dice = 0; - monster->armour_class = 0; - monster->evasion = 0; - monster->speed_increment = 0; - monster->attitude = ATT_HOSTILE; - monster->behaviour = BEH_SLEEP; - monster->foe = MHITNOT; - - mgrd[monster->x][monster->y] = NON_MONSTER; - - for (dmi = MSLOT_GOLD; dmi >= MSLOT_WEAPON; dmi--) - { - monster->inv[dmi] = NON_ITEM; - } - - for (dmi = 0; dmi < MAX_MONSTERS; dmi++) - { - if (menv[dmi].foe == monster_killed) - menv[dmi].foe = MHITNOT; - } - - if (you.pet_target == monster_killed) - you.pet_target = MHITNOT; - -} // end monster_cleanup() - -static bool jelly_divide(struct monsters * parent) -{ - int jex = 0, jey = 0; // loop variables {dlb} - bool foundSpot = false; // to rid code of hideous goto {dlb} - struct monsters *child = 0; // NULL - value determined with loop {dlb} - - if (!mons_class_flag( parent->type, M_SPLITS ) || parent->hit_points == 1) - return (false); - - // first, find a suitable spot for the child {dlb}: - for (jex = -1; jex < 3; jex++) - { - // loop moves beyond those tiles contiguous to parent {dlb}: - if (jex > 1) - return (false); - - for (jey = -1; jey < 2; jey++) - { - // 10-50 for now - must take clouds into account: - if (mgrd[parent->x + jex][parent->y + jey] == NON_MONSTER - && !grid_is_solid(grd[parent->x + jex][parent->y + jey]) - && (parent->x + jex != you.x_pos || parent->y + jey != you.y_pos)) - { - foundSpot = true; - break; - } - } - - if (foundSpot) - break; - } /* end of for jex */ - - int k = 0; // must remain outside loop that follows {dlb} - - // now that we have a spot, find a monster slot {dlb}: - for (k = 0; k < MAX_MONSTERS; k++) - { - child = &menv[k]; - - if (child->type == -1) - break; - else if (k == MAX_MONSTERS - 1) - return (false); - } - - // handle impact of split on parent {dlb}: - parent->max_hit_points /= 2; - - if (parent->hit_points > parent->max_hit_points) - parent->hit_points = parent->max_hit_points; - - // create child {dlb}: - // this is terribly partial and really requires - // more thought as to generation ... {dlb} - child->type = parent->type; - child->hit_dice = parent->hit_dice; - child->hit_points = parent->hit_points; - child->max_hit_points = child->hit_points; - child->armour_class = parent->armour_class; - child->evasion = parent->evasion; - child->speed = parent->speed; - child->speed_increment = 70 + random2(5); - child->behaviour = parent->behaviour; /* Look at this! */ - child->foe = parent->foe; - child->attitude = parent->attitude; - - child->x = parent->x + jex; - child->y = parent->y + jey; - - mgrd[child->x][child->y] = k; - - if (!simple_monster_message(parent, " splits in two!")) - { - if (!silenced(parent->x, parent->y) || !silenced(child->x, child->y)) - mpr("You hear a squelching noise.", MSGCH_SOUND); - } - - return (true); -} // end jelly_divde() - -// if you're invis and throw/zap whatever, alerts menv to your position -void alert_nearby_monsters(void) -{ - struct monsters *monster = 0; // NULL {dlb} - - for (int it = 0; it < MAX_MONSTERS; it++) - { - monster = &menv[it]; - - // Judging from the above comment, this function isn't - // intended to wake up monsters, so we're only going to - // alert monsters that aren't sleeping. For cases where an - // event should wake up monsters and alert them, I'd suggest - // calling noisy() before calling this function. -- bwr - if (monster->type != -1 - && monster->behaviour != BEH_SLEEP - && mons_near(monster)) - { - behaviour_event( monster, ME_ALERT, MHITYOU ); - } - } -} // end alert_nearby_monsters() - -static bool valid_morph( struct monsters *monster, int new_mclass ) -{ - unsigned char current_tile = grd[monster->x][monster->y]; - - // morph targets are _always_ "base" classes, not derived ones. - new_mclass = mons_species(new_mclass); - - /* various inappropriate polymorph targets */ - if (mons_class_holiness( new_mclass ) != mons_holiness( monster ) - || mons_class_flag( new_mclass, M_NO_EXP_GAIN ) // not helpless - || new_mclass == mons_species( monster->type ) // must be different - || new_mclass == MONS_PROGRAM_BUG - || new_mclass == MONS_SHAPESHIFTER - || new_mclass == MONS_GLOWING_SHAPESHIFTER - - // These shouldn't happen anyways (demons unaffected + holiness check), - // but if we ever do have polydemon, these will be needed: - || new_mclass == MONS_PLAYER_GHOST - || new_mclass == MONS_PANDEMONIUM_DEMON - || (new_mclass >= MONS_GERYON && new_mclass <= MONS_ERESHKIGAL)) - { - return (false); - } - - /* Not fair to instakill a monster like this -- - order of evaluation of inner conditional important */ - if (current_tile == DNGN_LAVA || current_tile == DNGN_DEEP_WATER) - { - if (!mons_class_flies(new_mclass) - || monster_habitat(new_mclass) != current_tile) - { - return (false); - } - } - - // not fair to strand a water monster on dry land, either. :) - if (monster_habitat(new_mclass) == DNGN_DEEP_WATER - && current_tile != DNGN_DEEP_WATER - && current_tile != DNGN_SHALLOW_WATER) - { - return (false); - } - - // and putting lava monsters on non-lava sqaures is a no-no, too - if (monster_habitat(new_mclass) == DNGN_LAVA && current_tile != DNGN_LAVA) - return (false); - - return (true); -} // end valid_morph() - -// note that power is (as of yet) unused within this function - -// may be worthy of consideration of later implementation, though, -// so I'll still let the parameter exist for the time being {dlb} -bool monster_polymorph( struct monsters *monster, int targetc, int power ) -{ - char str_polymon[INFO_SIZE] = ""; // cannot use info[] here {dlb} - bool player_messaged = false; - int source_power, target_power, relax; - int tries = 1000; - - UNUSED( power ); - - // Used to be mons_power, but that just returns hit_dice - // for the monster class. By using the current hit dice - // the player gets the opportunity to use draining more - // effectively against shapeshifters. -- bwr - source_power = monster->hit_dice; - relax = 2; - - if (targetc == RANDOM_MONSTER) - { - do - { - targetc = random2( NUM_MONSTERS ); - - // valid targets are always base classes - targetc = mons_species( targetc ); - - target_power = mons_power( targetc ); - - if (one_chance_in(100)) - relax++; - - if (relax > 50) - return (simple_monster_message( monster, " shudders." )); - } - while (tries-- && (!valid_morph( monster, targetc ) - || target_power < source_power - relax - || target_power > source_power + (relax * 3) / 2)); - } - - if(!valid_morph( monster, targetc )) { - strcat( str_polymon, " looks momentarily different."); - player_messaged = simple_monster_message( monster, str_polymon ); - return (player_messaged); - } - - // messaging: {dlb} - bool invis = mons_class_flag( targetc, M_INVIS ) - || mons_has_ench( monster, ENCH_INVIS ); - - if (mons_has_ench( monster, ENCH_GLOWING_SHAPESHIFTER, ENCH_SHAPESHIFTER )) - strcat( str_polymon, " changes into " ); - else if (targetc == MONS_PULSATING_LUMP) - strcat( str_polymon, " degenerates into " ); - else - strcat( str_polymon, " evaporates and reforms as " ); - - if (invis && !player_see_invis()) - strcat( str_polymon, "something you cannot see!" ); - else - { - strcat( str_polymon, monam( 250, targetc, !invis, DESC_NOCAP_A ) ); - - if (targetc == MONS_PULSATING_LUMP) - strcat( str_polymon, " of flesh" ); - - strcat( str_polymon, "!" ); - } - - player_messaged = simple_monster_message( monster, str_polymon ); - - // the actual polymorphing: - int old_hp = monster->hit_points; - int old_hp_max = monster->max_hit_points; - - /* deal with mons_sec */ - monster->type = targetc; - monster->number = 250; - - int abj = mons_has_ench( monster, ENCH_ABJ_I, ENCH_ABJ_VI ); - int shifter = mons_has_ench( monster, ENCH_GLOWING_SHAPESHIFTER, - ENCH_SHAPESHIFTER ); - - // Note: define_monster() will clear out all enchantments! -- bwr - define_monster( monster_index(monster) ); - - // put back important enchantments: - if (abj != ENCH_NONE) - mons_add_ench( monster, abj ); - - if (shifter != ENCH_NONE) - mons_add_ench( monster, shifter ); - - if (mons_class_flag( monster->type, M_INVIS )) - mons_add_ench( monster, ENCH_INVIS ); - - monster->hit_points = monster->max_hit_points - * ((old_hp * 100) / old_hp_max) / 100 - + random2(monster->max_hit_points); - - if (monster->hit_points > monster->max_hit_points) - monster->hit_points = monster->max_hit_points; - - monster->speed_increment = 67 + random2(6); - - monster_drop_ething(monster); - - return (player_messaged); -} // end monster_polymorph() - -void monster_blink(struct monsters *monster) -{ - int nx, ny; - - if (!random_near_space(monster->x, monster->y, nx, ny, - false, false)) - return; - - mgrd[monster->x][monster->y] = NON_MONSTER; - - monster->x = nx; - monster->y = ny; - - mgrd[nx][ny] = monster_index(monster); -} // end monster_blink() - -// allow_adjacent: allow target to be adjacent to origin -// restrict_LOS: restict target to be within PLAYER line of sight -bool random_near_space(int ox, int oy, int &tx, int &ty, bool allow_adjacent, - bool restrict_LOS) -{ - int tries = 0; - - do - { - tx = ox - 6 + random2(14); - ty = oy - 6 + random2(14); - - // origin is not 'near' - if (tx == ox && ty == oy) - continue; - - tries++; - - if (tries > 149) - break; - } - while ((!see_grid(tx, ty) && restrict_LOS) - || grd[tx][ty] < DNGN_SHALLOW_WATER - || mgrd[tx][ty] != NON_MONSTER - || (!allow_adjacent && distance(ox, oy, tx, ty) <= 2)); - - return (tries < 150); -} // end random_near_space() - -static bool habitat_okay( struct monsters *monster, int targ ) -{ - bool ret = false; - const int habitat = monster_habitat( monster->type ); - - if (mons_flies( monster )) - { - // flying monsters don't care - ret = true; - } - else if (mons_class_flag( monster->type, M_AMPHIBIOUS ) - && (targ == DNGN_DEEP_WATER || targ == DNGN_SHALLOW_WATER)) - { - // Amphibious creatures are "land" by default in mon-data, - // we allow them to swim here. -- bwr - ret = true; - } - else if (monster->type == MONS_WATER_ELEMENTAL && targ >= DNGN_DEEP_WATER) - { - // water elementals can crawl out over the land - ret = true; - } - else if (habitat == DNGN_FLOOR - && (targ >= DNGN_FLOOR || targ == DNGN_SHALLOW_WATER)) - { - // FLOOR habitat monster going to a non-bad place - ret = true; - } - else if (habitat == DNGN_DEEP_WATER - && (targ == DNGN_DEEP_WATER || targ == DNGN_SHALLOW_WATER)) - { - // Water monster to water - ret = true; - } - else if (habitat == DNGN_LAVA && targ == DNGN_LAVA) - { - // Lava monster to lava - ret = true; - } - - return (ret); -} - -// This doesn't really swap places, it just sets the monster's -// position equal to the player (the player has to be moved afterwards). -// It also has a slight problem with the fact the if the player is -// levitating over an inhospitable habitat for the monster the monster -// will be put in a place it normally couldn't go (this could be a -// feature because it prevents insta-killing). In order to prevent -// that little problem, we go looking for a square for the monster -// to "scatter" to instead... and if we can't find one the monster -// just refuses to be swapped (not a bug, this is intentionally -// avoiding the insta-kill). Another option is to look a bit -// wider for a vaild square (either by a last attempt blink, or -// by looking at a wider radius)... insta-killing should be a -// last resort in this function (especially since Tome, Dig, and -// Summoning can be used to set up death traps). If worse comes -// to worse, at least consider making the Swap spell not work -// when the player is over lava or water (if the player want's to -// swap pets to their death, we can let that go). -- bwr -bool swap_places(struct monsters *monster) -{ - bool swap; - - int loc_x = you.x_pos; - int loc_y = you.y_pos; - - swap = habitat_okay( monster, grd[loc_x][loc_y] ); - - // chose an appropiate habitat square at random around the target. - if (!swap) - { - int num_found = 0; - int temp_x, temp_y; - - for (int x = -1; x <= 1; x++) - { - temp_x = you.x_pos + x; - if (temp_x < 0 || temp_x >= GXM) - continue; - - for (int y = -1; y <= 1; y++) - { - if (x == 0 && y == 0) - continue; - - temp_y = you.y_pos + y; - if (temp_y < 0 || temp_y >= GYM) - continue; - - if (mgrd[temp_x][temp_y] == NON_MONSTER - && habitat_okay( monster, grd[temp_x][temp_y] )) - { - // Found an appropiate space... check if we - // switch the current choice to this one. - num_found++; - if (one_chance_in(num_found)) - { - loc_x = temp_x; - loc_y = temp_y; - } - } - } - } - - if (num_found) - swap = true; - } - - if (swap) - { - mpr("You swap places."); - - mgrd[monster->x][monster->y] = NON_MONSTER; - - monster->x = loc_x; - monster->y = loc_y; - - mgrd[monster->x][monster->y] = monster_index(monster); - } - else - { - // Might not be ideal, but it's better that insta-killing - // the monster... maybe try for a short blinki instead? -- bwr - simple_monster_message( monster, " resists." ); - } - - return (swap); -} // end swap_places() - -void print_wounds(struct monsters *monster) -{ - // prevents segfault -- cannot use info[] here {dlb} - char str_wound[INFO_SIZE]; - int dam_level; - - if (monster->type == -1) - return; - - if (monster->hit_points == monster->max_hit_points - || monster->hit_points < 1) - { - return; - } - - if (monster_descriptor(monster->type, MDSC_NOMSG_WOUNDS)) - return; - - strcpy(str_wound, " is "); - - if (monster->hit_points <= monster->max_hit_points / 6) - { - strcat(str_wound, "almost "); - strcat(str_wound, wounded_damaged(monster->type) ? "destroyed" - : "dead"); - dam_level = MDAM_ALMOST_DEAD; - } - else - { - if (monster->hit_points <= monster->max_hit_points / 6) - { - strcat(str_wound, "horribly "); - dam_level = MDAM_HORRIBLY_DAMAGED; - } - else if (monster->hit_points <= monster->max_hit_points / 3) - { - strcat(str_wound, "heavily " ); - dam_level = MDAM_HEAVILY_DAMAGED; - } - else if (monster->hit_points <= 3 * (monster-> max_hit_points / 4)) - { - strcat(str_wound, "moderately "); - dam_level = MDAM_MODERATELY_DAMAGED; - } - else - { - strcat(str_wound, "lightly "); - dam_level = MDAM_LIGHTLY_DAMAGED; - } - - strcat(str_wound, wounded_damaged(monster->type) ? "damaged" - : "wounded"); - } - - strcat(str_wound, "."); - simple_monster_message(monster, str_wound, MSGCH_MONSTER_DAMAGE, dam_level); -} // end print_wounds() - -// (true == 'damaged') [constructs, undead, etc.] -// and (false == 'wounded') [living creatures, etc.] {dlb} -bool wounded_damaged(int wound_class) -{ - // this schema needs to be abstracted into real categories {dlb}: - const int holy = mons_class_holiness(wound_class); - if (holy == MH_UNDEAD || holy == MH_NONLIVING || holy == MH_PLANT) - return (true); - - return (false); -} // end wounded_damaged() - -//--------------------------------------------------------------- -// -// behaviour_event -// -// 1. Change any of: monster state, foe, and attitude -// 2. Call handle_behaviour to re-evaluate AI state and target x,y -// -//--------------------------------------------------------------- -void behaviour_event( struct monsters *mon, int event, int src, - int src_x, int src_y ) -{ - bool isSmart = (mons_intel(mon->type) > I_ANIMAL); - bool isFriendly = mons_friendly(mon); - bool sourceFriendly = false; - bool setTarget = false; - bool breakCharm = false; - - if (src == MHITYOU) - sourceFriendly = true; - else if (src != MHITNOT) - sourceFriendly = mons_friendly( &menv[src] ); - - switch(event) - { - case ME_DISTURB: - // assumes disturbed by noise... - if (mon->behaviour == BEH_SLEEP) - mon->behaviour = BEH_WANDER; - - // A bit of code to make Project Noise actually so - // something again. Basically, dumb monsters and - // monsters who aren't otherwise occupied will at - // least consider the (apparent) source of the noise - // interesting for a moment. -- bwr - if (!isSmart || mon->foe == MHITNOT || mon->behaviour == BEH_WANDER) - { - mon->target_x = src_x; - mon->target_y = src_y; - } - break; - - case ME_WHACK: - case ME_ANNOY: - // will turn monster against <src>, unless they - // are BOTH friendly and stupid. Hitting someone - // over the head, of course, always triggers this code. - if (isFriendly != sourceFriendly || isSmart || event == ME_WHACK) - { - mon->foe = src; - - if (mon->behaviour != BEH_CORNERED) - mon->behaviour = BEH_SEEK; - - if (src == MHITYOU) - { - mon->attitude = ATT_HOSTILE; - breakCharm = true; - } - } - - // now set target x,y so that monster can whack - // back (once) at an invisible foe - if (event == ME_WHACK) - setTarget = true; - break; - - case ME_ALERT: - // will alert monster to <src> and turn them - // against them, unless they have a current foe. - // it won't turn friends hostile either. - if (mon->behaviour != BEH_CORNERED) - mon->behaviour = BEH_SEEK; - - if (mon->foe == MHITNOT) - mon->foe = src; - break; - - case ME_SCARE: - mon->foe = src; - mon->behaviour = BEH_FLEE; - // assume monsters know where to run from, even - // if player is invisible. - setTarget = true; - break; - - case ME_CORNERED: - // just set behaviour.. foe doesn't change. - if (mon->behaviour != BEH_CORNERED && !mons_has_ench(mon,ENCH_FEAR)) - simple_monster_message(mon, " turns to fight!"); - - mon->behaviour = BEH_CORNERED; - break; - - case ME_EVAL: - default: - break; - } - - if (setTarget) - { - if (src == MHITYOU) - { - mon->target_x = you.x_pos; - mon->target_y = you.y_pos; - mon->attitude = ATT_HOSTILE; - } - else if (src != MHITNOT) - { - mon->target_x = menv[src].x; - mon->target_y = menv[src].y; - } - } - - // now, break charms if appropriate - if (breakCharm) - mons_del_ench( mon, ENCH_CHARM ); - - // do any resultant foe or state changes - handle_behaviour( mon ); -} - -//--------------------------------------------------------------- -// -// handle_behaviour -// -// 1. Evalutates current AI state -// 2. Sets monster targetx,y based on current foe -// -//--------------------------------------------------------------- -static void handle_behaviour(struct monsters *mon) -{ - bool changed = true; - bool isFriendly = mons_friendly(mon); - bool proxPlayer = mons_near(mon); - bool proxFoe; - bool isHurt = (mon->hit_points <= mon->max_hit_points / 4 - 1); - bool isHealthy = (mon->hit_points > mon->max_hit_points / 2); - bool isSmart = (mons_intel(mon->type) > I_ANIMAL); - bool isScared = mons_has_ench(mon, ENCH_FEAR); - - // immobility logic stolen from later on in handle_monster().. argh! --gdl - bool isMobile = !(mon->type == MONS_OKLOB_PLANT - || mon->type == MONS_CURSE_SKULL - || (mon->type >= MONS_CURSE_TOE - && mon->type <= MONS_POTION_MIMIC)); - - // check for confusion -- early out. - if (mons_has_ench(mon, ENCH_CONFUSION)) - { - mon->target_x = 10 + random2(GXM - 10); - mon->target_y = 10 + random2(GYM - 10); - return; - } - - // validate current target exists - if (mon->foe != MHITNOT && mon->foe != MHITYOU) - { - if (menv[mon->foe].type == -1) - mon->foe = MHITNOT; - } - - // change proxPlayer depending on invisibility and standing - // in shallow water - if (proxPlayer && you.invis) - { - if (!mons_player_visible( mon )) - proxPlayer = false; - - // must be able to see each other - if (!see_grid(mon->x, mon->y)) - proxPlayer = false; - - // now, the corollary to that is that sometimes, if a - // player is right next to a monster, they will 'see' - if (grid_distance( you.x_pos, you.y_pos, mon->x, mon->y ) == 1 - && one_chance_in(3)) - { - proxPlayer = true; - } - } - - // set friendly target, if they don't already have one - if (isFriendly - && you.pet_target != MHITNOT - && (mon->foe == MHITNOT || mon->foe == MHITYOU)) - { - mon->foe = you.pet_target; - } - - // monsters do not attack themselves {dlb} - if (mon->foe == monster_index(mon)) - mon->foe = MHITNOT; - - // friendly monsters do not attack other friendly monsters - if (mon->foe != MHITNOT && mon->foe != MHITYOU) - { - if (isFriendly && mons_friendly(&menv[mon->foe])) - mon->foe = MHITNOT; - } - - // unfriendly monsters fighting other monsters will usually - // target the player, if they're healthy - if (!isFriendly && mon->foe != MHITYOU && mon->foe != MHITNOT - && proxPlayer && !one_chance_in(3) && isHealthy) - { - mon->foe = MHITYOU; - } - - // validate target again - if (mon->foe != MHITNOT && mon->foe != MHITYOU) - { - if (menv[mon->foe].type == -1) - mon->foe = MHITNOT; - } - - while (changed) - { - int foe_x = you.x_pos; - int foe_y = you.y_pos; - - // evaluate these each time; they may change - if (mon->foe == MHITNOT) - proxFoe = false; - else - { - if (mon->foe == MHITYOU) - { - foe_x = you.x_pos; - foe_y = you.y_pos; - proxFoe = proxPlayer; // take invis into account - } - else - { - proxFoe = mons_near(mon, mon->foe); - - if (!mons_monster_visible( mon, &menv[mon->foe] )) - proxFoe = false; - - // XXX monsters will rely on player LOS -- GDL - if (!see_grid(menv[mon->foe].x, menv[mon->foe].y)) - proxFoe = false; - - foe_x = menv[mon->foe].x; - foe_y = menv[mon->foe].y; - } - } - - // track changes to state; attitude never changes here. - unsigned int new_beh = mon->behaviour; - unsigned int new_foe = mon->foe; - - // take care of monster state changes - switch(mon->behaviour) - { - case BEH_SLEEP: - // default sleep state - mon->target_x = mon->x; - mon->target_y = mon->y; - new_foe = MHITNOT; - break; - - case BEH_SEEK: - // no foe? then wander or seek the player - if (mon->foe == MHITNOT) - { - if (!proxPlayer) - new_beh = BEH_WANDER; - else - { - new_foe = MHITYOU; - mon->target_x = you.x_pos; - mon->target_y = you.y_pos; - } - - break; - } - - // foe gone out of LOS? - if (!proxFoe) - { - if (isFriendly) - { - new_foe = MHITYOU; - mon->target_x = foe_x; - mon->target_y = foe_y; - break; - } - - if (mon->foe_memory > 0 && mon->foe != MHITNOT) - { - // if we've arrived at our target x,y - // do a stealth check. If the foe - // fails, monster will then start - // tracking foe's CURRENT position, - // but only for a few moves (smell and - // intuition only go so far) - - if (mon->x == mon->target_x && - mon->y == mon->target_y) - { - if (mon->foe == MHITYOU) - { - if (check_awaken(monster_index(mon))) - { - mon->target_x = you.x_pos; - mon->target_y = you.y_pos; - } - else - mon->foe_memory = 1; - } - else - { - if (coinflip()) // XXX: cheesy! - { - mon->target_x = menv[mon->foe].x; - mon->target_y = menv[mon->foe].y; - } - else - mon->foe_memory = 1; - } - } - - // either keep chasing, or start - // wandering. - if (mon->foe_memory < 2) - { - mon->foe_memory = 0; - new_beh = BEH_WANDER; - } - break; - } - - // hack: smarter monsters will - // tend to pursue the player longer. - int memory; - switch(mons_intel(monster_index(mon))) - { - case I_HIGH: - memory = 100 + random2(200); - break; - case I_NORMAL: - memory = 50 + random2(100); - break; - case I_ANIMAL: - default: - memory = 25 + random2(75); - break; - case I_INSECT: - memory = 10 + random2(50); - break; - } - - mon->foe_memory = memory; - break; // from case - } - - // monster can see foe: continue 'tracking' - // by updating target x,y - if (mon->foe == MHITYOU) - { - // sometimes, your friends will wander a bit. - if (isFriendly && one_chance_in(8)) - { - mon->target_x = 10 + random2(GXM - 10); - mon->target_y = 10 + random2(GYM - 10); - mon->foe = MHITNOT; - new_beh = BEH_WANDER; - } - else - { - mon->target_x = you.x_pos; - mon->target_y = you.y_pos; - } - } - else - { - mon->target_x = menv[mon->foe].x; - mon->target_y = menv[mon->foe].y; - } - - if (isHurt && !isSmart && isMobile) - new_beh = BEH_FLEE; - break; - - case BEH_WANDER: - // is our foe in LOS? - // Batty monsters don't automatically reseek so that - // they'll flitter away, we'll reset them just before - // they get movement in handle_monsters() instead. -- bwr - if (proxFoe && !testbits( mon->flags, MF_BATTY )) - { - new_beh = BEH_SEEK; - break; - } - - // default wander behaviour - // - // XXX: This is really dumb wander behaviour... instead of - // changing the goal square every turn, better would be to - // have the monster store a direction and have the monster - // head in that direction for a while, then shift the - // direction to the left or right. We're changing this so - // wandering monsters at least appear to have some sort of - // attention span. -- bwr - if ((mon->x == mon->target_x && mon->y == mon->target_y) - || one_chance_in(20) - || testbits( mon->flags, MF_BATTY )) - { - mon->target_x = 10 + random2(GXM - 10); - mon->target_y = 10 + random2(GYM - 10); - } - - // during their wanderings, monsters will - // eventually relax their guard (stupid - // ones will do so faster, smart monsters - // have longer memories - if (!proxFoe && mon->foe != MHITNOT) - { - if (one_chance_in( isSmart ? 60 : 20 )) - new_foe = MHITNOT; - } - break; - - case BEH_FLEE: - // check for healed - if (isHealthy && !isScared) - new_beh = BEH_SEEK; - // smart monsters flee until they can - // flee no more... possible to get a - // 'CORNERED' event, at which point - // we can jump back to WANDER if the foe - // isn't present. - - if (proxFoe) - { - // try to flee _from_ the correct position - mon->target_x = foe_x; - mon->target_y = foe_y; - } - break; - - case BEH_CORNERED: - if (isHealthy) - new_beh = BEH_SEEK; - - // foe gone out of LOS? - if (!proxFoe) - { - if (isFriendly || proxPlayer) - new_foe = MHITYOU; - else - new_beh = BEH_WANDER; - } - else - { - mon->target_x = foe_x; - mon->target_y = foe_y; - } - break; - - default: - return; // uh oh - } - - changed = (new_beh != mon->behaviour || new_foe != mon->foe); - mon->behaviour = new_beh; - - if (mon->foe != new_foe) - mon->foe_memory = 0; - - mon->foe = new_foe; - } -} // end handle_behaviour() - -// note that this function *completely* blocks messaging for monsters -// distant or invisible to the player ... look elsewhere for a function -// permitting output of "It" messages for the invisible {dlb} -// INtentionally avoids info and str_pass now. -- bwr -bool simple_monster_message(struct monsters *monster, const char *event, - int channel, int param) -{ - char buff[INFO_SIZE]; - - if (mons_near( monster ) - && (channel == MSGCH_MONSTER_SPELL || player_monster_visible(monster))) - { - snprintf( buff, sizeof(buff), "%s%s", - ptr_monam(monster, DESC_CAP_THE), event ); - - mpr( buff, channel, param ); - return (true); - } - - return (false); -} // end simple_monster_message() - -// used to adjust time durations in handle_enchantment() for monster speed -static inline int mod_speed( int val, int speed ) -{ - return (speed ? (val * 10) / speed : val); -} - -static bool handle_enchantment(struct monsters *monster) -{ - const int habitat = monster_habitat( monster->type ); - bool died = false; - int grid; - int poisonval; - int dam; - int tmp; - - // Yes, this is the speed we want. This function will be called in - // two curcumstances: (1) the monster can move and have enough energy, - // and (2) the monster cannot move (speed == 0) and the monster loop - // is running. - // - // In the first case we don't have to figure in the player's time, - // since the rate of call to this function already does that (ie. - // a bat would get here 6 times in 2 normal player turns, and if - // the player was twice as fast it would be 6 times every four player - // moves. So the only speed we care about is the monster vs the - // absolute time frame. - // - // In the second case, we're hacking things so that plants can suffer - // from sticky flame. The rate of call in this case is once every - // player action... so the time_taken by the player is the ratio to - // the absolute time frame. - // - // This will be used below for poison and sticky flame so that the - // damage is apparently in the absolute time frame. This is done - // by scaling the damage and the chance that the effect goes away. - // The result is that poison on a regular monster will be doing - // 1d3 damage every two rounds, and last eight rounds, and on - // a bat the same poison will be doing 1/3 the damage each action - // it gets (the mod fractions are randomized in), will have three - // turns to the other monster's one, and the effect will survive - // 3 times as many calls to this function (ie 8 rounds * 3 calls). - // - // -- bwr - const int speed = (monster->speed == 0) ? you.time_taken : monster->speed; - - for (int p = 0; p < NUM_MON_ENCHANTS && !died; p++) - { - switch (monster->enchantment[p]) - { - case ENCH_SLOW: - if (random2(250) <= mod_speed( monster->hit_dice + 10, speed )) - mons_del_ench(monster, ENCH_SLOW); - break; - - case ENCH_HASTE: - if (random2(1000) < mod_speed( 25, speed )) - mons_del_ench(monster, ENCH_HASTE); - break; - - case ENCH_FEAR: - if (random2(150) <= mod_speed( monster->hit_dice + 5, speed )) - mons_del_ench(monster, ENCH_FEAR); - break; - - case ENCH_CONFUSION: - if (random2(120) < mod_speed( monster->hit_dice + 5, speed )) - { - // don't delete perma-confusion - if (!mons_class_flag(monster->type, M_CONFUSED)) - mons_del_ench(monster, ENCH_CONFUSION); - } - break; - - case ENCH_INVIS: - if (random2(1000) < mod_speed( 25, speed )) - { - // don't delete perma-invis - if (!mons_class_flag( monster->type, M_INVIS )) - mons_del_ench(monster, ENCH_INVIS); - } - break; - - case ENCH_SUBMERGED: - // not even air elementals unsubmerge into clouds - if (env.cgrid[monster->x][monster->y] != EMPTY_CLOUD) - break; - - // Air elementals are a special case, as their - // submerging in air isn't up to choice. -- bwr - if (monster->type == MONS_AIR_ELEMENTAL) - { - heal_monster( monster, 1, one_chance_in(5) ); - - if (one_chance_in(5)) - mons_del_ench( monster, ENCH_SUBMERGED ); - - break; - } - - // Now we handle the others: - grid = grd[monster->x][monster->y]; - - // Badly injured monsters prefer to stay submerged... - // electrical eels and lava snakes have ranged attacks - // and are more likely to surface. -- bwr - if (habitat == DNGN_FLOOR || habitat != grid) - mons_del_ench( monster, ENCH_SUBMERGED ); // forced to surface - else if (monster->hit_points <= monster->max_hit_points / 2) - break; - else if (((monster->type == MONS_ELECTRICAL_EEL - || monster->type == MONS_LAVA_SNAKE) - && (random2(1000) < mod_speed( 20, speed ) - || (mons_near(monster) - && monster->hit_points == monster->max_hit_points - && !one_chance_in(10)))) - || random2(5000) < mod_speed( 10, speed )) - { - mons_del_ench( monster, ENCH_SUBMERGED ); - } - break; - - case ENCH_POISON_I: - case ENCH_POISON_II: - case ENCH_POISON_III: - case ENCH_POISON_IV: - case ENCH_YOUR_POISON_I: - case ENCH_YOUR_POISON_II: - case ENCH_YOUR_POISON_III: - case ENCH_YOUR_POISON_IV: - poisonval = monster->enchantment[p] - ENCH_POISON_I; - - if (poisonval < 0 || poisonval > 3) - poisonval = monster->enchantment[p] - ENCH_YOUR_POISON_I; - - dam = (poisonval >= 3) ? 1 : 0; - - if (coinflip()) - dam += roll_dice( 1, poisonval + 2 ); - - if (mons_res_poison(monster) < 0) - dam += roll_dice( 2, poisonval ) - 1; - - // We adjust damage for monster speed (since this is applied - // only when the monster moves), and we handle the factional - // part as well (so that speed 30 creatures will take damage). - dam *= 10; - dam = (dam / speed) + ((random2(speed) < (dam % speed)) ? 1 : 0); - - if (dam > 0) - { - hurt_monster( monster, dam ); - -#if DEBUG_DIAGNOSTICS - // for debugging, we don't have this silent. - simple_monster_message( monster, " takes poison damage.", - MSGCH_DIAGNOSTICS ); - snprintf( info, INFO_SIZE, "poison damage: %d", dam ); - mpr( info, MSGCH_DIAGNOSTICS ); -#endif - - if (monster->hit_points < 1) - { - monster_die(monster, - ((monster->enchantment[p] < ENCH_POISON_I) - ? KILL_YOU : KILL_MISC), 0); - died = true; - } - } - - // chance to get over poison (1 in 8, modified for speed) - if (random2(1000) < mod_speed( 125, speed )) - { - if (monster->enchantment[p] == ENCH_POISON_I) - mons_del_ench(monster, ENCH_POISON_I); - else if (monster->enchantment[p] == ENCH_YOUR_POISON_I) - mons_del_ench(monster, ENCH_YOUR_POISON_I); - else - monster->enchantment[p]--; - } - break; - - case ENCH_YOUR_ROT_I: - if (random2(1000) < mod_speed( 250, speed )) - mons_del_ench(monster, ENCH_YOUR_ROT_I); - else if (monster->hit_points > 1 - && random2(1000) < mod_speed( 333, speed )) - { - hurt_monster(monster, 1); - } - break; - - //jmf: FIXME: if (undead) make_small_rot_cloud(); - case ENCH_YOUR_ROT_II: - case ENCH_YOUR_ROT_III: - case ENCH_YOUR_ROT_IV: - if (monster->hit_points > 1 - && random2(1000) < mod_speed( 333, speed )) - { - hurt_monster(monster, 1); - } - - if (random2(1000) < mod_speed( 250, speed )) - monster->enchantment[p]--; - break; - - case ENCH_BACKLIGHT_I: - if (random2(1000) < mod_speed( 100, speed )) - mons_del_ench( monster, ENCH_BACKLIGHT_I ); - break; - - case ENCH_BACKLIGHT_II: - case ENCH_BACKLIGHT_III: - case ENCH_BACKLIGHT_IV: - if (random2(1000) < mod_speed( 200, speed )) - monster->enchantment[p]--; - break; - - // assumption: mons_res_fire has already been checked - case ENCH_STICKY_FLAME_I: - case ENCH_STICKY_FLAME_II: - case ENCH_STICKY_FLAME_III: - case ENCH_STICKY_FLAME_IV: - case ENCH_YOUR_STICKY_FLAME_I: - case ENCH_YOUR_STICKY_FLAME_II: - case ENCH_YOUR_STICKY_FLAME_III: - case ENCH_YOUR_STICKY_FLAME_IV: - dam = roll_dice( 2, 4 ) - 1; - - if (mons_res_fire( monster ) < 0) - dam += roll_dice( 2, 5 ) - 1; - - // We adjust damage for monster speed (since this is applied - // only when the monster moves), and we handle the factional - // part as well (so that speed 30 creatures will take damage). - dam *= 10; - dam = (dam / speed) + ((random2(speed) < (dam % speed)) ? 1 : 0); - - if (dam > 0) - { - hurt_monster( monster, dam ); - simple_monster_message(monster, " burns!"); - -#if DEBUG_DIAGNOSTICS - snprintf( info, INFO_SIZE, "sticky flame damage: %d", dam ); - mpr( info, MSGCH_DIAGNOSTICS ); -#endif - - if (monster->hit_points < 1) - { - monster_die(monster, - ((monster->enchantment[p] < ENCH_STICKY_FLAME_I) - ? KILL_YOU : KILL_MISC), 0); - died = true; - } - } - - // chance to get over sticky flame (1 in 5, modified for speed) - if (random2(1000) < mod_speed( 200, speed )) - { - if (monster->enchantment[p] == ENCH_STICKY_FLAME_I) - mons_del_ench( monster, ENCH_STICKY_FLAME_I ); - else if (monster->enchantment[p] == ENCH_YOUR_STICKY_FLAME_I) - mons_del_ench( monster, ENCH_YOUR_STICKY_FLAME_I ); - else - monster->enchantment[p]--; - } - break; - - case ENCH_SHORT_LIVED: - // This should only be used for ball lightning -- bwr - if (random2(1000) < mod_speed( 200, speed )) - monster->hit_points = -1; - break; - - // 19 is taken by summoning: - // If these are changed, must also change abjuration - case ENCH_ABJ_I: - case ENCH_ABJ_II: - case ENCH_ABJ_III: - case ENCH_ABJ_IV: - if (random2(1000) < mod_speed( 100, speed )) - monster->enchantment[p]--; - - if (monster->enchantment[p] < ENCH_ABJ_I) - { - monster_die(monster, KILL_RESET, 0); - died = true; - } - break; - - case ENCH_ABJ_V: - if (random2(1000) < mod_speed( 20, speed )) - monster->enchantment[p] = ENCH_ABJ_IV; - break; - - case ENCH_ABJ_VI: - if (random2(1000) < mod_speed( 10, speed )) - monster->enchantment[p] = ENCH_ABJ_V; - break; - - case ENCH_CHARM: - if (random2(500) <= mod_speed( monster->hit_dice + 10, speed )) - mons_del_ench(monster, ENCH_CHARM); - break; - - case ENCH_GLOWING_SHAPESHIFTER: // this ench never runs out - // number of actions is fine for shapeshifters - if (monster->type == MONS_GLOWING_SHAPESHIFTER - || random2(1000) < mod_speed( 250, speed )) - { - monster_polymorph(monster, RANDOM_MONSTER, 0); - } - break; - - case ENCH_SHAPESHIFTER: // this ench never runs out - if (monster->type == MONS_SHAPESHIFTER - || random2(1000) < mod_speed( 1000 / ((15 * monster->hit_dice) / 5), speed )) - { - monster_polymorph(monster, RANDOM_MONSTER, 0); - } - break; - - case ENCH_TP_I: - mons_del_ench( monster, ENCH_TP_I ); - monster_teleport( monster, true ); - break; - - case ENCH_TP_II: - case ENCH_TP_III: - case ENCH_TP_IV: - tmp = mod_speed( 1000, speed ); - - if (tmp < 1000 && random2(1000) < tmp) - monster->enchantment[p]--; - else if (monster->enchantment[p] - tmp / 1000 >= ENCH_TP_I) - { - monster->enchantment[p] -= tmp / 1000; - tmp %= 1000; - - if (random2(1000) < tmp) - { - if (monster->enchantment[p] > ENCH_TP_I) - monster->enchantment[p]--; - else - { - mons_del_ench( monster, ENCH_TP_I, ENCH_TP_IV ); - monster_teleport( monster, true ); - } - } - } - else - { - mons_del_ench( monster, ENCH_TP_I, ENCH_TP_IV ); - monster_teleport( monster, true ); - } - break; - - case ENCH_SLEEP_WARY: - if (random2(1000) < mod_speed( 50, speed )) - mons_del_ench(monster, ENCH_SLEEP_WARY); - break; - } - } - - return (died); -} // end handle_enchantment() - -//--------------------------------------------------------------- -// -// handle_movement -// -// Move the monster closer to its target square. -// -//--------------------------------------------------------------- -static void handle_movement(struct monsters *monster) -{ - int dx, dy; - - // some calculations - if (monster->type == MONS_BORING_BEETLE && monster->foe == MHITYOU) - { - dx = you.x_pos - monster->x; - dy = you.y_pos - monster->y; - } - else - { - dx = monster->target_x - monster->x; - dy = monster->target_y - monster->y; - } - - // move the monster: - mmov_x = (dx > 0) ? 1 : ((dx < 0) ? -1 : 0); - mmov_y = (dy > 0) ? 1 : ((dy < 0) ? -1 : 0); - - if (monster->behaviour == BEH_FLEE) - { - mmov_x *= -1; - mmov_y *= -1; - } - - // bounds check: don't let fleeing monsters try to run - // off the map - if (monster->target_x + mmov_x < 0 || monster->target_x + mmov_x >= GXM) - mmov_x = 0; - - if (monster->target_y + mmov_y < 0 || monster->target_y + mmov_y >= GYM) - mmov_y = 0; - - // now quit if we're can't move - if (mmov_x == 0 && mmov_y == 0) - return; - - // reproduced here is some semi-legacy code that makes monsters - // move somewhat randomly along oblique paths. It is an exceedingly - // good idea, given crawl's unique line of sight properties. - // - // Added a check so that oblique movement paths aren't used when - // close to the target square. -- bwr - if (grid_distance( dx, dy, 0, 0 ) > 3) - { - if (abs(dx) > abs(dy)) - { - // sometimes we'll just move parallel the x axis - if (coinflip()) - mmov_y = 0; - } - - if (abs(dy) > abs(dx)) - { - // sometimes we'll just move parallel the y axis - if (coinflip()) - mmov_x = 0; - } - } -} // end handle_movement() - -//--------------------------------------------------------------- -// -// handle_nearby_ability -// -// Gives monsters a chance to use a special ability when they're -// next to the player. -// -//--------------------------------------------------------------- -static void handle_nearby_ability(struct monsters *monster) -{ - if (!mons_near( monster ) - || monster->behaviour == BEH_SLEEP - || mons_has_ench( monster, ENCH_SUBMERGED )) - { - return; - } - - if (mons_class_flag(monster->type, M_SPEAKS) && one_chance_in(21) - && monster->behaviour != BEH_WANDER) - { - mons_speaks(monster); - } - - switch (monster->type) - { - case MONS_SPATIAL_VORTEX: - case MONS_KILLER_KLOWN: - // used for colour (butterflies too, but they don't change) - monster->number = random_colour(); - break; - - case MONS_GIANT_EYEBALL: - if (coinflip() && !mons_friendly(monster) - && monster->behaviour != BEH_WANDER) - { - simple_monster_message(monster, " stares at you."); - - if (you.paralysis < 10) - you.paralysis += 2 + random2(3); - } - break; - - case MONS_EYE_OF_DRAINING: - if (coinflip() && !mons_friendly(monster) - && monster->behaviour != BEH_WANDER) - { - simple_monster_message(monster, " stares at you."); - - dec_mp(5 + random2avg(13, 3)); - - heal_monster(monster, 10, true); // heh heh {dlb} - } - break; - - case MONS_LAVA_WORM: - case MONS_LAVA_FISH: - case MONS_LAVA_SNAKE: - case MONS_SALAMANDER: - case MONS_BIG_FISH: - case MONS_GIANT_GOLDFISH: - case MONS_ELECTRICAL_EEL: - case MONS_JELLYFISH: - case MONS_WATER_ELEMENTAL: - case MONS_SWAMP_WORM: - // XXX: We're being a bit player-centric here right now... - // really we should replace the grid_distance() check - // with one that checks for unaligned monsters as well. -- bwr - if (mons_has_ench( monster, ENCH_SUBMERGED)) - { - if (grd[monster->x][monster->y] == DNGN_SHALLOW_WATER - || grd[monster->x][monster->y] == DNGN_BLUE_FOUNTAIN - || (!mons_friendly(monster) - && grid_distance( monster->x, monster->y, - you.x_pos, you.y_pos ) == 1 - && (monster->hit_points == monster->max_hit_points - || (monster->hit_points > monster->max_hit_points / 2 - && coinflip())))) - { - mons_del_ench( monster, ENCH_SUBMERGED ); - } - } - else if (monster_habitat(monster->type) == grd[monster->x][monster->y] - && (one_chance_in(5) - || (grid_distance( monster->x, monster->y, - you.x_pos, you.y_pos ) > 1 - && monster->type != MONS_ELECTRICAL_EEL - && monster->type != MONS_LAVA_SNAKE - && !one_chance_in(20)) - || monster->hit_points <= monster->max_hit_points / 2) - || env.cgrid[monster->x][monster->y] != EMPTY_CLOUD) - { - mons_add_ench( monster, ENCH_SUBMERGED ); - } - break; - - case MONS_AIR_ELEMENTAL: - if (one_chance_in(5)) - mons_add_ench( monster, ENCH_SUBMERGED ); - break; - - case MONS_PANDEMONIUM_DEMON: - if (ghost.values[ GVAL_DEMONLORD_CYCLE_COLOUR ]) - monster->number = random_colour(); - break; - } -} // end handle_nearby_ability() - -//--------------------------------------------------------------- -// -// handle_special_ability -// -// $$$ not sure what to say here... -// -//--------------------------------------------------------------- -static bool handle_special_ability(struct monsters *monster, bolt & beem) -{ - bool used = false; - - FixedArray < unsigned int, 19, 19 > show; - - const monster_type mclass = (mons_genus( monster->type ) == MONS_DRACONIAN) - ? draco_subspecies( monster ) - : static_cast<monster_type>( monster->type ); - - if (!mons_near( monster ) - || monster->behaviour == BEH_SLEEP - || mons_has_ench( monster, ENCH_SUBMERGED )) - { - return (false); - } - -// losight(show, grd, you.x_pos, you.y_pos); - - switch (mclass) - { - case MONS_BALL_LIGHTNING: - if (monster->attitude == ATT_HOSTILE - && distance( you.x_pos, you.y_pos, monster->x, monster->y ) <= 5) - { - monster->hit_points = -1; - used = true; - break; - } - - for (int i = 0; i < MAX_MONSTERS; i++) - { - struct monsters *targ = &menv[i]; - - if (targ->type == -1 || targ->type == NON_MONSTER) - continue; - - if (distance( monster->x, monster->y, targ->x, targ->y ) >= 5) - continue; - - if (monster->attitude == targ->attitude) - continue; - - // faking LOS by checking the neighbouring square - int dx = targ->x - monster->x; - if (dx) - dx /= dx; - - int dy = targ->y - monster->y; - if (dy) - dy /= dy; - - const int tx = monster->x + dx; - const int ty = monster->y + dy; - - if (tx < 0 || tx > GXM || ty < 0 || ty > GYM) - continue; - - if (!grid_is_solid(grd[tx][ty])) - { - monster->hit_points = -1; - used = true; - break; - } - } - break; - - case MONS_LAVA_SNAKE: - if (mons_has_ench(monster, ENCH_CONFUSION)) - break; - - if (!mons_player_visible( monster )) - break; - - if (coinflip()) - break; - - // setup tracer - strcpy(beem.beam_name, "glob of lava"); - beem.range = 4; - beem.rangeMax = 13; - beem.damage = dice_def( 3, 10 ); - beem.colour = RED; - beem.type = SYM_ZAP; - beem.flavour = BEAM_LAVA; - beem.hit = 20; - beem.beam_source = monster_index(monster); - beem.thrower = KILL_MON; - beem.aux_source = "glob of lava"; - - // fire tracer - fire_tracer(monster, beem); - - // good idea? - if (mons_should_fire(beem)) - { - simple_monster_message(monster, " spits lava!"); - fire_beam(beem); - used = true; - } - break; - - case MONS_ELECTRICAL_EEL: - if (mons_has_ench(monster, ENCH_CONFUSION)) - break; - - if (!mons_player_visible( monster )) - break; - - if (coinflip()) - break; - - // setup tracer - strcpy(beem.beam_name, "bolt of electricity"); - beem.damage = dice_def( 3, 6 ); - beem.colour = LIGHTCYAN; - beem.type = SYM_ZAP; - beem.flavour = BEAM_ELECTRICITY; - beem.hit = 150; - beem.beam_source = monster_index(monster); - beem.thrower = KILL_MON; - beem.aux_source = "bolt of electricity"; - beem.range = 4; - beem.rangeMax = 13; - beem.is_beam = true; - - // fire tracer - fire_tracer(monster, beem); - - // good idea? - if (mons_should_fire(beem)) - { - simple_monster_message(monster, " shoots out a bolt of electricity!"); - fire_beam(beem); - used = true; - } - break; - - case MONS_ACID_BLOB: - case MONS_OKLOB_PLANT: - case MONS_YELLOW_DRACONIAN: - if (mons_has_ench(monster, ENCH_CONFUSION)) - break; - - if (!mons_player_visible( monster )) - break; - - if (one_chance_in(3)) - used = plant_spit(monster, beem); - - break; - - case MONS_PIT_FIEND: - if (one_chance_in(3)) - break; - // deliberate fall through - case MONS_FIEND: - if (mons_has_ench(monster, ENCH_CONFUSION)) - break; - - // friendly fiends won't use torment, preferring hellfire - // (right now there is no way a monster can predict how - // badly they'll damage the player with torment) -- GDL - if (one_chance_in(4)) - { - int spell_cast; - - switch (random2(4)) - { - case 0: - if (!mons_friendly(monster)) - { - spell_cast = MS_TORMENT; - mons_cast(monster, beem, spell_cast); - used = true; - break; - } - // deliberate fallthrough -- see above - case 1: - case 2: - case 3: - spell_cast = MS_HELLFIRE; - setup_mons_cast(monster, beem, spell_cast); - - // fire tracer - fire_tracer(monster, beem); - - // good idea? - if (mons_should_fire(beem)) - { - simple_monster_message( monster, " makes a gesture!", - MSGCH_MONSTER_SPELL ); - - mons_cast(monster, beem, spell_cast); - used = true; - } - break; - } - - mmov_x = 0; - mmov_y = 0; - } - break; - - case MONS_IMP: - case MONS_PHANTOM: - case MONS_INSUBSTANTIAL_WISP: - case MONS_BLINK_FROG: - case MONS_KILLER_KLOWN: - if (one_chance_in(7)) - { - simple_monster_message(monster, " blinks."); - monster_blink(monster); - } - break; - - case MONS_MANTICORE: - if (!mons_player_visible( monster )) - break; - - if (mons_has_ench(monster, ENCH_CONFUSION)) - break; - - if (!mons_near(monster)) - break; - - // the fewer spikes the manticore has left, the less - // likely it will use them. - if (random2(16) >= static_cast<int>(monster->number)) - break; - - // do the throwing right here, since the beam is so - // easy to set up and doesn't involve inventory. - - // set up the beam - strcpy(beem.beam_name, "volley of spikes"); - beem.range = 9; - beem.rangeMax = 9; - beem.hit = 14; - beem.damage = dice_def( 2, 10 ); - beem.beam_source = monster_index(monster); - beem.type = SYM_MISSILE; - beem.colour = LIGHTGREY; - beem.flavour = BEAM_MISSILE; - beem.thrower = KILL_MON; - beem.aux_source = "volley of spikes"; - beem.is_beam = false; - - // fire tracer - fire_tracer(monster, beem); - - // good idea? - if (mons_should_fire(beem)) - { - simple_monster_message(monster, " flicks its tail!"); - fire_beam(beem); - used = true; - // decrement # of volleys left - monster->number -= 1; - } - break; - - // dragon breath weapon: - case MONS_DRAGON: - case MONS_HELL_HOUND: - case MONS_ICE_DRAGON: - case MONS_LINDWURM: - case MONS_FIREDRAKE: - case MONS_XTAHUA: - case MONS_WHITE_DRACONIAN: - case MONS_RED_DRACONIAN: - if (!mons_player_visible( monster )) - break; - - if (mons_has_ench(monster, ENCH_CONFUSION)) - break; - - if ((monster->type != MONS_HELL_HOUND && random2(13) < 3) - || one_chance_in(10)) - { - setup_dragon(monster, beem); - - // fire tracer - fire_tracer(monster, beem); - - // good idea? - if (mons_should_fire(beem)) - { - simple_monster_message(monster, " breathes.", - MSGCH_MONSTER_SPELL); - fire_beam(beem); - mmov_x = 0; - mmov_y = 0; - used = true; - } - } - break; - - default: - break; - } - - return (used); -} // end handle_special_ability() - -//--------------------------------------------------------------- -// -// handle_potion -// -// Give the monster a chance to quaff a potion. Returns true if -// the monster imbibed. -// -//--------------------------------------------------------------- -static bool handle_potion(struct monsters *monster, bolt & beem) -{ - - // yes, there is a logic to this ordering {dlb}: - if (monster->behaviour == BEH_SLEEP) - return (false); - else if (monster->inv[MSLOT_POTION] == NON_ITEM) - return (false); - else if (!one_chance_in(3)) - return (false); - else - { - bool imbibed = false; - - switch (mitm[monster->inv[MSLOT_POTION]].sub_type) - { - case POT_HEALING: - case POT_HEAL_WOUNDS: - if (monster->hit_points <= monster->max_hit_points / 2 - && mons_holiness(monster) != MH_UNDEAD - && mons_holiness(monster) != MH_NONLIVING - && mons_holiness(monster) != MH_PLANT) - { - simple_monster_message(monster, " drinks a potion."); - - if (heal_monster(monster, 5 + random2(7), false)) - simple_monster_message(monster, " is healed!"); - - if (mitm[monster->inv[MSLOT_POTION]].sub_type - == POT_HEAL_WOUNDS) - { - heal_monster(monster, 10 + random2avg(28, 3), false); - } - - imbibed = true; - } - break; - - case POT_SPEED: - // notice that these are the same odd colours used in - // mons_ench_f2() {dlb} - beem.colour = BLUE; - // intentional fall through - case POT_INVISIBILITY: - if (mitm[monster->inv[MSLOT_POTION]].sub_type == POT_INVISIBILITY) - beem.colour = MAGENTA; - - // why only drink these if not near player? {dlb} - if (!mons_near(monster)) - { - simple_monster_message(monster, " drinks a potion."); - - mons_ench_f2(monster, beem); - - imbibed = true; - } - break; - } - - if (imbibed) - { - if (dec_mitm_item_quantity( monster->inv[MSLOT_POTION], 1 )) - monster->inv[MSLOT_POTION] = NON_ITEM; - } - - return (imbibed); - } -} // end handle_potion() - -static bool handle_reaching(struct monsters *monster) -{ - bool ret = false; - const int wpn = monster->inv[MSLOT_WEAPON]; - - if (mons_aligned(monster_index(monster), monster->foe)) - return (false); - - if (mons_has_ench( monster, ENCH_SUBMERGED )) - return (false); - - if (wpn != NON_ITEM && get_weapon_brand( mitm[wpn] ) == SPWPN_REACHING ) - { - if (monster->foe == MHITYOU) - { - // this check isn't redundant -- player may be invisible. - if (monster->target_x == you.x_pos && monster->target_y == you.y_pos) - { - int dx = abs(monster->x - you.x_pos); - int dy = abs(monster->y - you.y_pos); - - if ((dx == 2 && dy <= 2) || (dy == 2 && dx <= 2)) - { - ret = true; - monster_attack( monster_index(monster) ); - } - } - } - else if (monster->foe != MHITNOT) - { - // same comments as to invisibility as above. - if (monster->target_x == menv[monster->foe].x - && monster->target_y == menv[monster->foe].y) - { - int dx = abs(monster->x - menv[monster->foe].x); - int dy = abs(monster->y - menv[monster->foe].y); - if ((dx == 2 && dy <= 2) || (dy == 2 && dx <= 2)) - { - ret = true; - monsters_fight( monster_index(monster), monster->foe ); - } - } - } - } - - return ret; -} // end handle_reaching() - -//--------------------------------------------------------------- -// -// handle_scroll -// -// Give the monster a chance to read a scroll. Returns true if -// the monster read something. -// -//--------------------------------------------------------------- -static bool handle_scroll(struct monsters *monster) -{ - // yes, there is a logic to this ordering {dlb}: - if (mons_has_ench(monster, ENCH_CONFUSION) - || monster->behaviour == BEH_SLEEP - || mons_has_ench( monster, ENCH_SUBMERGED )) - { - return (false); - } - else if (monster->inv[MSLOT_SCROLL] == NON_ITEM) - return (false); - else if (!one_chance_in(3)) - return (false); - else - { - bool read = false; - - // notice how few cases are actually accounted for here {dlb}: - switch (mitm[monster->inv[MSLOT_SCROLL]].sub_type) - { - case SCR_TELEPORTATION: - if (!mons_has_ench(monster, ENCH_TP_I)) - { - if (monster->behaviour == BEH_FLEE) - { - simple_monster_message(monster, " reads a scroll."); - monster_teleport(monster, false); - read = true; - } - } - break; - - case SCR_BLINKING: - if (monster->behaviour == BEH_FLEE) - { - if (mons_near(monster)) - { - simple_monster_message(monster, " reads a scroll."); - simple_monster_message(monster, " blinks!"); - monster_blink(monster); - read = true; - } - } - break; - - case SCR_SUMMONING: - if (mons_near(monster)) - { - simple_monster_message(monster, " reads a scroll."); - create_monster( MONS_ABOMINATION_SMALL, ENCH_ABJ_II, - SAME_ATTITUDE(monster), monster->x, monster->y, - monster->foe, 250 ); - read = true; - } - break; - } - - if (read) - { - if (dec_mitm_item_quantity( monster->inv[MSLOT_SCROLL], 1 )) - monster->inv[MSLOT_SCROLL] = NON_ITEM; - } - - return read; - } -} // end handle_scroll() - -//--------------------------------------------------------------- -// -// handle_wand -// -// Give the monster a chance to zap a wand. Returns true if the -// monster zapped. -// -//--------------------------------------------------------------- -static bool handle_wand(struct monsters *monster, bolt &beem) -{ - // yes, there is a logic to this ordering {dlb}: - if (monster->behaviour == BEH_SLEEP) - return (false); - else if (!mons_near(monster)) - return (false); - else if (mons_has_ench( monster, ENCH_SUBMERGED )) - return (false); - else if (monster->inv[MSLOT_WAND] == NON_ITEM - || mitm[monster->inv[MSLOT_WAND]].plus <= 0) - { - return (false); - } - else if (coinflip()) - { - bool niceWand = false; - bool zap = false; - - // map wand type to monster spell type - int mzap = map_wand_to_mspell(mitm[monster->inv[MSLOT_WAND]].sub_type); - if (mzap == 0) - return (false); - - // set up the beam - int power = 30 + monster->hit_dice; - bolt theBeam = mons_spells(mzap, power); - - // XXX: ugly hack this: - static char wand_buff[ ITEMNAME_SIZE ]; - - strcpy( beem.beam_name, theBeam.beam_name ); - beem.beam_source = monster_index(monster); - beem.source_x = monster->x; - beem.source_y = monster->y; - beem.colour = theBeam.colour; - beem.range = theBeam.range; - beem.rangeMax = theBeam.rangeMax; - beem.damage = theBeam.damage; - beem.ench_power = theBeam.ench_power; - beem.hit = theBeam.hit; - beem.type = theBeam.type; - beem.flavour = theBeam.flavour; - beem.thrower = theBeam.thrower; - beem.is_beam = theBeam.is_beam; - - item_def item = mitm[ monster->inv[MSLOT_WAND] ]; - -#if HISCORE_WEAPON_DETAIL - set_ident_flags( item, ISFLAG_IDENT_MASK ); -#else - unset_ident_flags( item, ISFLAG_IDENT_MASK ); - set_ident_flags( item, ISFLAG_KNOW_TYPE ); -#endif - - item_name( item, DESC_PLAIN, wand_buff ); - - beem.aux_source = wand_buff; - - switch (mitm[monster->inv[MSLOT_WAND]].sub_type) - { - // these have been deemed "too tricky" at this time {dlb}: - case WAND_POLYMORPH_OTHER: - case WAND_ENSLAVEMENT: - case WAND_DIGGING: - case WAND_RANDOM_EFFECTS: - return (false); - - // these are wands that monsters will aim at themselves {dlb}: - case WAND_HASTING: - if (!mons_has_ench(monster, ENCH_HASTE)) - { - beem.target_x = monster->x; - beem.target_y = monster->y; - - niceWand = true; - break; - } - return (false); - - case WAND_HEALING: - if (monster->hit_points <= monster->max_hit_points / 2) - { - beem.target_x = monster->x; - beem.target_y = monster->y; - - niceWand = true; - break; - } - return (false); - - case WAND_INVISIBILITY: - if (!mons_has_ench( monster, ENCH_INVIS ) - && !mons_has_ench( monster, ENCH_SUBMERGED )) - { - beem.target_x = monster->x; - beem.target_y = monster->y; - - niceWand = true; - break; - } - return (false); - - case WAND_TELEPORTATION: - if (monster->hit_points <= monster->max_hit_points / 2) - { - if (!mons_has_ench(monster, ENCH_TP_I) && !one_chance_in(20)) - { - beem.target_x = monster->x; - beem.target_y = monster->y; - - niceWand = true; - break; - } - // this break causes the wand to be tried on the player: - break; - } - return (false); - } - - // fire tracer, if necessary - if (!niceWand) - { - fire_tracer( monster, beem ); - - // good idea? - zap = mons_should_fire( beem ); - } - - if (niceWand || zap) - { - if (!simple_monster_message(monster, " zaps a wand.")) - { - if (!silenced(you.x_pos, you.y_pos)) - mpr("You hear a zap.", MSGCH_SOUND); - } - - // charge expenditure {dlb} - mitm[monster->inv[MSLOT_WAND]].plus--; - beem.is_tracer = false; - fire_beam( beem ); - - return (true); - } - } - - return (false); -} // end handle_wand() - -static int get_draconian_breath_spell( struct monsters *monster ) -{ - int draco_breath = MS_NO_SPELL; - - if (mons_genus( monster->type ) == MONS_DRACONIAN) - { - switch (draco_subspecies( monster )) - { - case MONS_BLACK_DRACONIAN: - draco_breath = MS_LIGHTNING_BOLT; - break; - - case MONS_PALE_DRACONIAN: - draco_breath = MS_STEAM_BALL; - break; - - case MONS_GREEN_DRACONIAN: - draco_breath = MS_POISON_BLAST; - break; - - case MONS_PURPLE_DRACONIAN: - draco_breath = MS_ORB_ENERGY; - break; - - case MONS_MOTTLED_DRACONIAN: - draco_breath = MS_STICKY_FLAME; - break; - - case MONS_DRACONIAN: - case MONS_YELLOW_DRACONIAN: // already handled as ability - case MONS_RED_DRACONIAN: // already handled as ability - case MONS_WHITE_DRACONIAN: // already handled as ability - default: - break; - } - } - - return (draco_breath); -} - -//--------------------------------------------------------------- -// -// handle_spell -// -// Give the monster a chance to cast a spell. Returns true if -// a spell was cast. -// -//--------------------------------------------------------------- -static bool handle_spell( struct monsters *monster, bolt & beem ) -{ - bool monsterNearby = mons_near(monster); - bool finalAnswer = false; // as in: "Is that your...?" {dlb} - const int draco_breath = get_draconian_breath_spell(monster); - - // yes, there is a logic to this ordering {dlb}: - if (monster->behaviour == BEH_SLEEP - || (!mons_class_flag(monster->type, M_SPELLCASTER) - && draco_breath == MS_NO_SPELL) - || mons_has_ench( monster, ENCH_SUBMERGED )) - { - return (false); - } - - if ((mons_class_flag(monster->type, M_ACTUAL_SPELLS) - || mons_class_flag(monster->type, M_PRIEST)) - && (mons_has_ench(monster, ENCH_GLOWING_SHAPESHIFTER, ENCH_SHAPESHIFTER))) - { - return (false); //jmf: shapeshiftes don't get spells, just - // physical powers. - } - else if (mons_has_ench(monster, ENCH_CONFUSION) - && !mons_class_flag(monster->type, M_CONFUSED)) - { - return (false); - } - else if (monster->type == MONS_PANDEMONIUM_DEMON - && !ghost.values[ GVAL_DEMONLORD_SPELLCASTER ]) - { - return (false); - } - else if (random2(200) > monster->hit_dice + 50 - || (monster->type == MONS_BALL_LIGHTNING && coinflip())) - { - return (false); - } - else - { - int spell_cast = MS_NO_SPELL; - int hspell_pass[6] = { MS_NO_SPELL, MS_NO_SPELL, MS_NO_SPELL, - MS_NO_SPELL, MS_NO_SPELL, MS_NO_SPELL }; - - mons_spell_list(monster, hspell_pass); - - // forces the casting of dig when player not visible - this is EVIL! - if (!monsterNearby) - { - if (hspell_pass[4] == MS_DIG && monster->behaviour == BEH_SEEK) - { - spell_cast = MS_DIG; - finalAnswer = true; - } - else if (hspell_pass[2] == MS_HEAL - && monster->hit_points < monster->max_hit_points) - { - // The player's out of sight! - // Quick, let's take a turn to heal ourselves. -- bwr - spell_cast = MS_HEAL; - finalAnswer = true; - } - else if (monster->behaviour == BEH_FLEE) - { - // Since the player isn't around, we'll extend the monster's - // normal fleeing choices to include the self-enchant slot. - if (ms_useful_fleeing_out_of_sight(monster,hspell_pass[5])) - { - spell_cast = hspell_pass[5]; - finalAnswer = true; - } - else if (ms_useful_fleeing_out_of_sight(monster,hspell_pass[2])) - { - spell_cast = hspell_pass[2]; - finalAnswer = true; - } - } - else if (monster->foe == MHITYOU) - { - return (false); - } - } - - // Promote the casting of useful spells for low-HP monsters. - if (!finalAnswer - && monster->hit_points < monster->max_hit_points / 4 - && !one_chance_in(4)) - { - // Note: There should always be at least some chance we don't - // get here... even if the monster is on it's last HP. That - // way we don't have to worry about monsters infinitely casting - // Healing on themselves (ie orc priests). - if (monster->behaviour == BEH_FLEE - && ms_low_hitpoint_cast( monster, hspell_pass[5] )) - { - spell_cast = hspell_pass[5]; - finalAnswer = true; - } - else if (ms_low_hitpoint_cast( monster, hspell_pass[2] )) - { - spell_cast = hspell_pass[2]; - finalAnswer = true; - } - } - - if (!finalAnswer) - { - // should monster not have selected dig by now, it never will: - if (hspell_pass[4] == MS_DIG) - hspell_pass[4] = MS_NO_SPELL; - - // remove healing/invis/haste if we don't need them - int num_no_spell = 0; - - for (int i = 0; i < 6; i++) - { - if (hspell_pass[i] == MS_NO_SPELL) - num_no_spell++; - else if (ms_waste_of_time( monster, hspell_pass[i] )) - { - hspell_pass[i] = MS_NO_SPELL; - num_no_spell++; - } - } - - // If no useful spells... cast no spell. - if (num_no_spell == 6 && draco_breath == MS_NO_SPELL) - return (false); - - // up to four tries to pick a spell. - for (int loopy = 0; loopy < 4; loopy ++) - { - bool spellOK = false; - - // setup spell - fleeing monsters will always try to - // choose their emergency spell. - if (monster->behaviour == BEH_FLEE) - { - spell_cast = (one_chance_in(5) ? MS_NO_SPELL - : hspell_pass[5]); - } - else - { - // Randomly picking one of the non-emergency spells: - spell_cast = hspell_pass[random2(5)]; - } - - if (spell_cast == MS_NO_SPELL) - continue; - - // setup the spell - setup_mons_cast(monster, beem, spell_cast); - - // beam-type spells requiring tracers - if (ms_requires_tracer(spell_cast)) - { - fire_tracer(monster, beem); - // good idea? - if (mons_should_fire(beem)) - spellOK = true; - } - else - { - // all direct-effect/summoning/self-enchantments/etc - spellOK = true; - - if (ms_direct_nasty(spell_cast) - && mons_aligned(monster_index(monster), monster->foe)) - { - spellOK = false; - } - else if (monster->foe == MHITYOU || monster->foe == MHITNOT) - { - // XXX: Note the crude hack so that monsters can - // use ME_ALERT to target (we should really have - // a measure of time instead of peeking to see - // if the player is still there). -- bwr - if (!mons_player_visible( monster ) - && (monster->target_x != you.x_pos - || monster->target_y != you.y_pos - || coinflip())) - { - spellOK = false; - } - } - else if (!mons_monster_visible( monster, &menv[monster->foe] )) - { - spellOK = false; - } - } - - // if not okay, then maybe we'll cast a defensive spell - if (!spellOK) - spell_cast = (coinflip() ? hspell_pass[2] : MS_NO_SPELL); - - if (spell_cast != MS_NO_SPELL) - break; - } - } - - if (spell_cast == MS_NO_SPELL && draco_breath != MS_NO_SPELL) - { - spell_cast = draco_breath; - finalAnswer = true; - } - - // should the monster *still* not have a spell, well, too bad {dlb}: - if (spell_cast == MS_NO_SPELL) - return (false); - - // Try to animate dead: if nothing rises, pretend we didn't cast it - if (spell_cast == MS_ANIMATE_DEAD - && !animate_dead( 100, SAME_ATTITUDE(monster), monster->foe, 0 )) - { - return (false); - } - - if (monsterNearby) // handle monsters within range of player - { - if (monster->type == MONS_GERYON) - { - if (silenced(monster->x, monster->y)) - return (false); - - simple_monster_message( monster, " winds a great silver horn.", - MSGCH_MONSTER_SPELL ); - } - else if (mons_is_demon( monster->type )) - { - simple_monster_message( monster, " gestures.", - MSGCH_MONSTER_SPELL ); - } - else - { - switch (monster->type) - { - default: - if (spell_cast == draco_breath) - { - if (!simple_monster_message(monster, " breathes.", - MSGCH_MONSTER_SPELL)) - { - if (!silenced(monster->x, monster->y) - && !silenced(you.x_pos, you.y_pos)) - { - mpr("You hear a roar.", MSGCH_SOUND); - } - } - break; - } - - if (silenced(monster->x, monster->y)) - return (false); - - if (mons_class_flag(monster->type, M_PRIEST)) - { - switch (random2(3)) - { - case 0: - simple_monster_message( monster, - " prays.", - MSGCH_MONSTER_SPELL ); - break; - case 1: - simple_monster_message( monster, - " mumbles some strange prayers.", - MSGCH_MONSTER_SPELL ); - break; - case 2: - default: - simple_monster_message( monster, - " utters an invocation.", - MSGCH_MONSTER_SPELL ); - break; - } - } - else - { - switch (random2(3)) - { - case 0: - // XXX: could be better, chosen to match the - // ones in monspeak.cc... has the problem - // that it doesn't suggest a vocal component. -- bwr - simple_monster_message( monster, - " gestures wildly.", - MSGCH_MONSTER_SPELL ); - break; - case 1: - simple_monster_message( monster, - " mumbles some strange words.", - MSGCH_MONSTER_SPELL ); - break; - case 2: - default: - simple_monster_message( monster, - " casts a spell.", - MSGCH_MONSTER_SPELL ); - break; - } - } - break; - - case MONS_BALL_LIGHTNING: - monster->hit_points = -1; - break; - - case MONS_STEAM_DRAGON: - case MONS_MOTTLED_DRAGON: - case MONS_STORM_DRAGON: - case MONS_GOLDEN_DRAGON: - case MONS_SHADOW_DRAGON: - case MONS_SWAMP_DRAGON: - case MONS_SWAMP_DRAKE: - case MONS_DEATH_DRAKE: - case MONS_HELL_HOG: - case MONS_SERPENT_OF_HELL: - case MONS_QUICKSILVER_DRAGON: - case MONS_IRON_DRAGON: - if (!simple_monster_message(monster, " breathes.", - MSGCH_MONSTER_SPELL)) - { - if (!silenced(monster->x, monster->y) - && !silenced(you.x_pos, you.y_pos)) - { - mpr("You hear a roar.", MSGCH_SOUND); - } - } - break; - - case MONS_VAPOUR: - mons_add_ench( monster, ENCH_SUBMERGED ); - break; - - case MONS_BRAIN_WORM: - case MONS_ELECTRIC_GOLEM: - // These don't show any signs that they're casting a spell. - break; - - case MONS_GREAT_ORB_OF_EYES: - case MONS_SHINING_EYE: - case MONS_EYE_OF_DEVASTATION: - simple_monster_message(monster, " gazes.", MSGCH_MONSTER_SPELL); - break; - - case MONS_GIANT_ORANGE_BRAIN: - simple_monster_message(monster, " pulsates.", - MSGCH_MONSTER_SPELL); - break; - - case MONS_NAGA: - case MONS_NAGA_WARRIOR: - simple_monster_message(monster, " spits poison.", - MSGCH_MONSTER_SPELL); - break; - } - } - } - else // handle far-away monsters - { - if (monster->type == MONS_GERYON - && !silenced(you.x_pos, you.y_pos)) - { - mpr("You hear a weird and mournful sound.", MSGCH_SOUND); - } - } - - // FINALLY! determine primary spell effects {dlb}: - if (spell_cast == MS_BLINK && monsterNearby) - // why only cast blink if nearby? {dlb} - { - simple_monster_message(monster, " blinks!"); - monster_blink(monster); - } - else - { - mons_cast(monster, beem, spell_cast); - mmov_x = 0; - mmov_y = 0; - } - } // end "if mons_class_flag(monster->type, M_SPELLCASTER) ... - - return (true); -} // end handle_spell() - -//--------------------------------------------------------------- -// -// handle_throw -// -// Give the monster a chance to throw something. Returns true if -// the monster hurled. -// -//--------------------------------------------------------------- -static bool handle_throw(struct monsters *monster, bolt & beem) -{ - // yes, there is a logic to this ordering {dlb}: - if (mons_has_ench(monster, ENCH_CONFUSION) - || monster->behaviour == BEH_SLEEP - || mons_has_ench( monster, ENCH_SUBMERGED )) - { - return (false); - } - - if (mons_itemuse(monster->type) < MONUSE_OPEN_DOORS) - return (false); - - const int mon_item = monster->inv[MSLOT_MISSILE]; - if (mon_item == NON_ITEM || !is_valid_item( mitm[mon_item] )) - return (false); - - // don't allow offscreen throwing.. for now. - if (monster->foe == MHITYOU && !mons_near(monster)) - return (false); - - // poor 2-headed ogres {dlb} - if (monster->type == MONS_TWO_HEADED_OGRE || monster->type == MONS_ETTIN) - return (false); - - // recent addition {GDL} - monsters won't throw if they can do melee. - // wastes valuable ammo, and most monsters are better at melee anyway. - if (adjacent( beem.target_x, beem.target_y, monster->x, monster->y )) - return (false); - - if (one_chance_in(5)) - return (false); - - // new (GDL) - don't throw idiotic stuff. It's a waste of time. - int wepClass = mitm[mon_item].base_type; - int wepType = mitm[mon_item].sub_type; - - int weapon = monster->inv[MSLOT_WEAPON]; - - int lnchClass = (weapon != NON_ITEM) ? mitm[weapon].base_type : -1; - int lnchType = (weapon != NON_ITEM) ? mitm[weapon].sub_type : 0; - - bool thrown = false; - bool launched = false; - - throw_type( lnchClass, lnchType, wepClass, wepType, launched, thrown ); - - if (!launched && !thrown) - return (false); - - // ok, we'll try it. - setup_generic_throw( monster, beem ); - - // fire tracer - fire_tracer( monster, beem ); - - // good idea? - if (mons_should_fire( beem )) - { - beem.beam_name[0] = '\0'; - return (mons_throw( monster, beem, mon_item )); - } - - return (false); -} // end handle_throw() - -static void handle_monster_move(int i, monsters *monster) -{ - bool brkk = false; - struct bolt beem; - FixedArray <unsigned int, 19, 19> show; - - if (monster->hit_points > monster->max_hit_points) - monster->hit_points = monster->max_hit_points; - - // monster just summoned (or just took stairs), skip this action - if (testbits( monster->flags, MF_JUST_SUMMONED )) - { - monster->flags &= ~MF_JUST_SUMMONED; - return; - } - - monster->speed_increment += (monster->speed * you.time_taken) / 10; - - if (you.slow > 0) - { - monster->speed_increment += (monster->speed * you.time_taken) / 10; - } - - // Handle enchantments and clouds on nonmoving monsters: - if (monster->speed == 0) - { - if (env.cgrid[monster->x][monster->y] != EMPTY_CLOUD - && !mons_has_ench( monster, ENCH_SUBMERGED )) - { - mons_in_cloud( monster ); - } - - handle_enchantment( monster ); - } - - // memory is decremented here for a reason -- we only want it - // decrementing once per monster "move" - if (monster->foe_memory > 0) - monster->foe_memory--; - - if (monster->type == MONS_GLOWING_SHAPESHIFTER) - mons_add_ench( monster, ENCH_GLOWING_SHAPESHIFTER ); - - // otherwise there are potential problems with summonings - if (monster->type == MONS_SHAPESHIFTER) - mons_add_ench( monster, ENCH_SHAPESHIFTER ); - - // We reset batty monsters from wander to seek here, instead - // of in handle_behaviour() since that will be called with - // every single movement, and we want these monsters to - // hit and run. -- bwr - if (monster->foe != MHITNOT - && monster->behaviour == BEH_WANDER - && testbits( monster->flags, MF_BATTY )) - { - monster->behaviour = BEH_SEEK; - } - - while (monster->speed_increment >= 80) - { // The continues & breaks are WRT this. - if (monster->type != -1 && monster->hit_points < 1) - break; - - monster->speed_increment -= 10; - - if (env.cgrid[monster->x][monster->y] != EMPTY_CLOUD) - { - if (mons_has_ench( monster, ENCH_SUBMERGED )) - break; - - if (monster->type == -1) - break; // problem with vortices - - mons_in_cloud(monster); - - if (monster->type == -1) - { - monster->speed_increment = 1; - break; - } - } - - handle_behaviour(monster); - - if (handle_enchantment(monster)) - continue; - - // submerging monsters will hide from clouds - const int habitat = monster_habitat( monster->type ); - if (habitat != DNGN_FLOOR - && habitat == grd[monster->x][monster->y] - && env.cgrid[monster->x][monster->y] != EMPTY_CLOUD) - { - mons_add_ench( monster, ENCH_SUBMERGED ); - } - - // regenerate: - if (monster_descriptor(monster->type, MDSC_REGENERATES) - - || (monster->type == MONS_FIRE_ELEMENTAL - && (grd[monster->x][monster->y] == DNGN_LAVA - || env.cgrid[monster->x][monster->y] == CLOUD_FIRE - || env.cgrid[monster->x][monster->y] == CLOUD_FIRE_MON)) - - || (monster->type == MONS_WATER_ELEMENTAL - && (grd[monster->x][monster->y] == DNGN_SHALLOW_WATER - || grd[monster->x][monster->y] == DNGN_DEEP_WATER)) - - || (monster->type == MONS_AIR_ELEMENTAL - && env.cgrid[monster->x][monster->y] == EMPTY_CLOUD - && one_chance_in(3)) - - || one_chance_in(25)) - { - heal_monster(monster, 1, false); - } - - if (monster->speed >= 100) - continue; - - if (monster->type == MONS_ZOMBIE_SMALL - || monster->type == MONS_ZOMBIE_LARGE - || monster->type == MONS_SIMULACRUM_SMALL - || monster->type == MONS_SIMULACRUM_LARGE - || monster->type == MONS_SKELETON_SMALL - || monster->type == MONS_SKELETON_LARGE) - { - monster->max_hit_points = monster->hit_points; - } - - if (igrd[monster->x][monster->y] != NON_ITEM - && (mons_itemuse(monster->type) == MONUSE_WEAPONS_ARMOUR - || mons_itemuse(monster->type) == MONUSE_EATS_ITEMS - || monster->type == MONS_NECROPHAGE - || monster->type == MONS_GHOUL)) - { - if (handle_pickup(monster)) - continue; - } - - // calculates mmov_x, mmov_y based on monster target. - handle_movement(monster); - - brkk = false; - - if (mons_has_ench( monster, ENCH_CONFUSION ) - || (monster->type == MONS_AIR_ELEMENTAL - && mons_has_ench( monster, ENCH_SUBMERGED ))) - { - mmov_x = random2(3) - 1; - mmov_y = random2(3) - 1; - - // bounds check: don't let confused monsters try to run - // off the map - if (monster->target_x + mmov_x < 0 - || monster->target_x + mmov_x >= GXM) - { - mmov_x = 0; - } - - if (monster->target_y + mmov_y < 0 - || monster->target_y + mmov_y >= GYM) - { - mmov_y = 0; - } - - if (mgrd[monster->x + mmov_x][monster->y + mmov_y] != NON_MONSTER - && (mmov_x != 0 || mmov_y != 0)) - { - mmov_x = 0; - mmov_y = 0; - - if (monsters_fight(i, mgrd[monster->x + mmov_x][monster->y + mmov_y])) - { - brkk = true; - } - } - } - - if (brkk) - continue; - - handle_nearby_ability( monster ); - - beem.target_x = monster->target_x; - beem.target_y = monster->target_y; - - if (monster->behaviour != BEH_SLEEP - && monster->behaviour != BEH_WANDER) - { - // prevents unfriendlies from nuking you from offscreen. - // How nice! - if (mons_friendly(monster) || mons_near(monster)) - { - if (handle_special_ability(monster, beem)) - continue; - - if (handle_potion(monster, beem)) - continue; - - if (handle_scroll(monster)) - continue; - - // shapeshifters don't get spells - if (!mons_has_ench( monster, ENCH_GLOWING_SHAPESHIFTER, - ENCH_SHAPESHIFTER ) - || !mons_class_flag( monster->type, M_ACTUAL_SPELLS )) - { - if (handle_spell(monster, beem)) - continue; - } - - if (handle_wand(monster, beem)) - continue; - - if (handle_reaching(monster)) - continue; - } - - if (handle_throw(monster, beem)) - continue; - } - - // see if we move into (and fight) an unfriendly monster - int targmon = mgrd[monster->x + mmov_x][monster->y + mmov_y]; - if (targmon != NON_MONSTER - && targmon != i - && !mons_aligned(i, targmon)) - { - // figure out if they fight - if (monsters_fight(i, targmon)) - { - if (testbits(monster->flags, MF_BATTY)) - { - monster->behaviour = BEH_WANDER; - monster->target_x = 10 + random2(GXM - 10); - monster->target_y = 10 + random2(GYM - 10); - // monster->speed_increment -= monster->speed; - } - - mmov_x = 0; - mmov_y = 0; - brkk = true; - } - } - - if (brkk) - continue; - - if (monster->x + mmov_x == you.x_pos - && monster->y + mmov_y == you.y_pos) - { - bool isFriendly = mons_friendly(monster); - bool attacked = false; - - if (!isFriendly) - { - monster_attack(i); - attacked = true; - - if (testbits(monster->flags, MF_BATTY)) - { - monster->behaviour = BEH_WANDER; - monster->target_x = 10 + random2(GXM - 10); - monster->target_y = 10 + random2(GYM - 10); - } - } - - if ((monster->type == MONS_GIANT_SPORE - || monster->type == MONS_BALL_LIGHTNING) - && monster->hit_points < 1) - { - - // detach monster from the grid first, so it - // doesn't get hit by its own explosion (GDL) - mgrd[monster->x][monster->y] = NON_MONSTER; - - spore_goes_pop(monster); - monster_cleanup(monster); - continue; - } - - if (attacked) - { - mmov_x = 0; - mmov_y = 0; - continue; //break; - } - } - - if (invalid_monster(monster) || mons_is_stationary(monster)) - continue; - - monster_move(monster); - - // reevaluate behaviour, since the monster's - // surroundings have changed (it may have moved, - // or died for that matter. Don't bother for - // dead monsters. :) - if (monster->type != -1) - handle_behaviour(monster); - - } // end while - - if (monster->type != -1 && monster->hit_points < 1) - { - if (monster->type == MONS_GIANT_SPORE - || monster->type == MONS_BALL_LIGHTNING) - { - // detach monster from the grid first, so it - // doesn't get hit by its own explosion (GDL) - mgrd[monster->x][monster->y] = NON_MONSTER; - - spore_goes_pop( monster ); - monster_cleanup( monster ); - return; - } - else - { - monster_die( monster, KILL_MISC, 0 ); - } - } -} - -//--------------------------------------------------------------- -// -// handle_monsters -// -// This is the routine that controls monster AI. -// -//--------------------------------------------------------------- -void handle_monsters(void) -{ - // Keep track of monsters that have already moved and don't allow - // them to move again. - memset(immobile_monster, 0, sizeof immobile_monster); - - for (int i = 0; i < MAX_MONSTERS; i++) - { - struct monsters *monster = &menv[i]; - - if (monster->type == -1 || immobile_monster[i]) - continue; - - const int mx = monster->x, - my = monster->y; - handle_monster_move(i, monster); - - if (!invalid_monster(monster) - && (monster->x != mx || monster->y != my)) - immobile_monster[i] = true; - } // end of for loop - - // Clear any summoning flags so that lower indiced - // monsters get their actions in the next round. - for (int i = 0; i < MAX_MONSTERS; i++) - { - menv[i].flags &= ~MF_JUST_SUMMONED; - } -} // end handle_monster() - - -//--------------------------------------------------------------- -// -// handle_pickup -// -// Returns false if monster doesn't spend any time pickup up -// -//--------------------------------------------------------------- -static bool handle_pickup(struct monsters *monster) -{ - // single calculation permissible {dlb} - char str_pass[ ITEMNAME_SIZE ]; - bool monsterNearby = mons_near(monster); - int item = NON_ITEM; - - if (mons_has_ench( monster, ENCH_SUBMERGED )) - return (false); - - if (monster->behaviour == BEH_SLEEP) - return (false); - - if (monster->type == MONS_JELLY - || monster->type == MONS_BROWN_OOZE - || monster->type == MONS_ACID_BLOB - || monster->type == MONS_ROYAL_JELLY) - { - int hps_gained = 0; - int max_eat = roll_dice( 1, 10 ); - int eaten = 0; - - for (item = igrd[monster->x][monster->y]; - item != NON_ITEM && eaten < max_eat && hps_gained < 50; - item = mitm[item].link) - { - int quant = mitm[item].quantity; - - // don't eat fixed artefacts - if (is_fixed_artefact( mitm[item] )) - continue; - - // shouldn't eat stone things - // - but what about wands and rings? - if (mitm[item].base_type == OBJ_MISSILES - && (mitm[item].sub_type == MI_STONE - || mitm[item].sub_type == MI_LARGE_ROCK)) - { - continue; - } - - // don't eat special game items - if (mitm[item].base_type == OBJ_ORBS - || (mitm[item].base_type == OBJ_MISCELLANY - && mitm[item].sub_type == MISC_RUNE_OF_ZOT)) - { - continue; - } - - if (mitm[igrd[monster->x][monster->y]].base_type != OBJ_GOLD) - { - if (quant > max_eat - eaten) - quant = max_eat - eaten; - - hps_gained += (quant * item_mass( mitm[item] )) / 20 + quant; - eaten += quant; - } - else - { - // shouldn't be much trouble to digest a huge pile of gold! - if (quant > 500) - quant = 500 + roll_dice( 2, (quant - 500) / 2 ); - - hps_gained += quant / 10 + 1; - eaten++; - } - - dec_mitm_item_quantity( item, quant ); - } - - if (eaten) - { - if (hps_gained < 1) - hps_gained = 1; - else if (hps_gained > 50) - hps_gained = 50; - - // This is done manually instead of using heal_monster(), - // because that function doesn't work quite this way. -- bwr - monster->hit_points += hps_gained; - - if (monster->max_hit_points < monster->hit_points) - monster->max_hit_points = monster->hit_points; - - if (!silenced(you.x_pos, you.y_pos) - && !silenced(monster->x, monster->y)) - { - strcpy(info, "You hear a"); - if (!monsterNearby) - strcat(info, " distant"); - strcat(info, " slurping noise."); - mpr(info, MSGCH_SOUND); - } - - if (mons_class_flag( monster->type, M_SPLITS )) - { - const int reqd = (monster->hit_dice <= 6) - ? 50 : monster->hit_dice * 8; - - if (monster->hit_points >= reqd) - jelly_divide(monster); - } - } - - return (false); - } // end "if jellies" - - // Note: Monsters only look at top of stacks. - item = igrd[monster->x][monster->y]; - - switch (mitm[item].base_type) - { - case OBJ_WEAPONS: - if (monster->inv[MSLOT_WEAPON] != NON_ITEM) - return (false); - - if (is_fixed_artefact( mitm[item] )) - return (false); - - if (is_random_artefact( mitm[item] )) - return (false); - - // wimpy monsters (Kob, gob) shouldn't pick up halberds etc - // of course, this also block knives {dlb}: - if ((mons_species(monster->type) == MONS_KOBOLD - || mons_species(monster->type) == MONS_GOBLIN) - && property( mitm[item], PWPN_HIT ) <= 0) - { - return (false); - } - - // Nobody picks up giant clubs: - if (mitm[item].sub_type == WPN_GIANT_CLUB - || mitm[item].sub_type == WPN_GIANT_SPIKED_CLUB) - { - return (false); - } - - monster->inv[MSLOT_WEAPON] = item; - - if (get_weapon_brand(mitm[monster->inv[MSLOT_WEAPON]]) == SPWPN_PROTECTION) - { - monster->armour_class += 3; - } - - if (monsterNearby) - { - strcpy(info, ptr_monam(monster, DESC_CAP_THE)); - strcat(info, " picks up "); - it_name(monster->inv[MSLOT_WEAPON], DESC_NOCAP_A, str_pass); - strcat(info, str_pass); - strcat(info, "."); - mpr(info); - } - break; - - case OBJ_MISSILES: - // don't pick up if we're in combat, and there isn't much there - if (mitm[item].quantity < 5 || monster->behaviour != BEH_WANDER) - return (false); - - if (monster->inv[MSLOT_MISSILE] != NON_ITEM - && mitm[monster->inv[MSLOT_MISSILE]].sub_type == mitm[item].sub_type - && mitm[monster->inv[MSLOT_MISSILE]].plus == mitm[item].plus - && mitm[monster->inv[MSLOT_MISSILE]].special == mitm[item].special) - { - if (monsterNearby) - { - strcpy(info, ptr_monam(monster, DESC_CAP_THE)); - strcat(info, " picks up "); - it_name(item, DESC_NOCAP_A, str_pass); - strcat(info, str_pass); - strcat(info, "."); - mpr(info); - } - - inc_mitm_item_quantity( monster->inv[MSLOT_MISSILE], - mitm[item].quantity ); - - dec_mitm_item_quantity( item, mitm[item].quantity ); - return (true); - } - - // nobody bothers to pick up rocks if they don't already have some: - if (mitm[item].sub_type == MI_LARGE_ROCK) - return (false); - - // monsters with powerful melee attacks don't bother - if (mons_damage(monster->type, 0) > 5) - return (false); - - monster->inv[MSLOT_MISSILE] = item; - - if (monsterNearby) - { - strcpy(info, ptr_monam(monster, DESC_CAP_THE)); - strcat(info, " picks up "); - it_name(monster->inv[MSLOT_MISSILE], DESC_NOCAP_A, str_pass); - strcat(info, str_pass); - strcat(info, "."); - mpr(info); - } - break; - - case OBJ_WANDS: - if (monster->inv[MSLOT_WAND] != NON_ITEM) - return (false); - - monster->inv[MSLOT_WAND] = item; - - if (monsterNearby) - { - strcpy(info, ptr_monam(monster, DESC_CAP_THE)); - strcat(info, " picks up "); - it_name(monster->inv[MSLOT_WAND], DESC_NOCAP_A, str_pass); - strcat(info, str_pass); - strcat(info, "."); - mpr(info); - } - break; - - case OBJ_SCROLLS: - if (monster->inv[MSLOT_SCROLL] != NON_ITEM) - return (false); - - monster->inv[MSLOT_SCROLL] = item; - - if (monsterNearby) - { - strcpy(info, ptr_monam(monster, DESC_CAP_THE)); - strcat(info, " picks up "); - it_name(monster->inv[MSLOT_SCROLL], DESC_NOCAP_A, str_pass); - strcat(info, str_pass); - strcat(info, "."); - mpr(info); - } - break; - - case OBJ_POTIONS: - if (monster->inv[MSLOT_POTION] != NON_ITEM) - return (false); - - monster->inv[MSLOT_POTION] = item; - - if (monsterNearby) - { - strcpy(info, ptr_monam(monster, DESC_CAP_THE)); - strcat(info, " picks up "); - it_name(monster->inv[MSLOT_POTION], DESC_NOCAP_A, str_pass); - strcat(info, str_pass); - strcat(info, "."); - mpr(info); - } - break; - - case OBJ_CORPSES: - if (monster->type != MONS_NECROPHAGE && monster->type != MONS_GHOUL) - return (false); - - monster->hit_points += 1 + random2(mons_weight(mitm[item].plus)) / 100; - - // limited growth factor here -- should 77 really be the cap? {dlb}: - if (monster->hit_points > 100) - monster->hit_points = 100; - - if (monster->hit_points > monster->max_hit_points) - monster->max_hit_points = monster->hit_points; - - if (monsterNearby) - { - strcpy(info, ptr_monam(monster, DESC_CAP_THE)); - strcat(info, " eats "); - it_name(item, DESC_NOCAP_THE, str_pass); - strcat(info, str_pass); - strcat(info, "."); - mpr(info); - } - - destroy_item( item ); - return (true); - - case OBJ_GOLD: //mv - monsters now pick up gold (19 May 2001) - if (monsterNearby) - { - - strcpy(info, monam( monster->number, monster->type, - player_monster_visible( monster ), - DESC_CAP_THE )); - - strcat(info, " picks up some gold."); - mpr(info); - } - - if (monster->inv[MSLOT_GOLD] != NON_ITEM) - { - // transfer gold to monster's object, destroy ground object - inc_mitm_item_quantity( monster->inv[MSLOT_GOLD], - mitm[item].quantity ); - - destroy_item( item ); - return (true); - } - else - { - monster->inv[MSLOT_GOLD] = item; - } - break; - - default: - return (false); - } - - // Item has been picked-up, move to monster inventory. - mitm[item].x = 0; - mitm[item].y = 0; - - // Monster's only take the top item of stacks, so relink the - // top item, and unlink the item. - igrd[monster->x][monster->y] = mitm[item].link; - mitm[item].link = NON_ITEM; - - if (monster->speed_increment > 25) - monster->speed_increment -= monster->speed; - - return (true); -} // end handle_pickup() - -static void jelly_grows(monsters *monster) -{ - if (!silenced(you.x_pos, you.y_pos) - && !silenced(monster->x, monster->y)) - { - strcpy(info, "You hear a"); - if (!mons_near(monster)) - strcat(info, " distant"); - strcat(info, " slurping noise."); - mpr(info, MSGCH_SOUND); - } - - monster->hit_points += 5; - - // note here, that this makes jellies "grow" {dlb}: - if (monster->hit_points > monster->max_hit_points) - monster->max_hit_points = monster->hit_points; - - if (mons_class_flag( monster->type, M_SPLITS )) - { - // and here is where the jelly might divide {dlb} - const int reqd = (monster->hit_dice < 6) ? 50 - : monster->hit_dice * 8; - - if (monster->hit_points >= reqd) - jelly_divide(monster); - } -} - -static bool mons_can_displace(const monsters *mpusher, const monsters *mpushee) -{ - if (invalid_monster(mpusher) || invalid_monster(mpushee)) - return (false); - - const int ipushee = monster_index(mpushee); - if (ipushee < 0 || ipushee >= MAX_MONSTERS) - return (false); - - if (immobile_monster[ipushee]) - return (false); - - // Confused monsters can't be pushed past, sleeping monsters - // can't push. Note that sleeping monsters can't be pushed - // past, either, but they may be woken up by a crowd trying to - // elbow past them, and the wake-up check happens downstream. - if (mons_is_confused(mpusher) || mons_is_confused(mpushee) - || mons_is_paralysed(mpusher) || mons_is_paralysed(mpushee) - || mons_is_sleeping(mpusher)) - return (false); - - // Batty monsters are unpushable - if (mons_is_batty(mpusher) || mons_is_batty(mpushee)) - return (false); - - if (!monster_shover(mpusher)) - return (false); - - if (!monster_senior(mpusher, mpushee)) - return (false); - - return (true); -} - -static bool monster_swaps_places( monsters *mon, int mx, int my ) -{ - if (!mx && !my) - return (false); - - int targmon = mgrd[mon->x + mx][mon->y + my]; - if (targmon == MHITNOT || targmon == MHITYOU) - return (false); - - monsters *m2 = &menv[targmon]; - if (!mons_can_displace(mon, m2)) - return (false); - - if (mons_is_sleeping(m2)) - { - if (one_chance_in(2)) - { -#ifdef DEBUG_DIAGNOSTICS - char mname[ITEMNAME_SIZE]; - moname(m2->type, true, DESC_PLAIN, mname); - mprf(MSGCH_DIAGNOSTICS, - "Alerting monster %s at (%d,%d)", mname, m2->x, m2->y); -#endif - behaviour_event( m2, ME_ALERT, MHITNOT ); - } - return (false); - } - - // Check that both monsters will be happy at their proposed new locations. - const int cx = mon->x, cy = mon->y, - nx = mon->x + mx, ny = mon->y + my; - if (!habitat_okay(mon, grd[nx][ny]) - || !habitat_okay(m2, grd[cx][cy])) - return (false); - - // Okay, do the swap! -#ifdef DEBUG_DIAGNOSTICS - char mname[ITEMNAME_SIZE]; - moname(mon->type, true, DESC_PLAIN, mname); - mprf(MSGCH_DIAGNOSTICS, - "Swap: %s (%d,%d)->(%d,%d) (%d;%d)", - mname, mon->x, mon->y, nx, ny, mon->speed_increment, mon->speed); -#endif - mon->x = nx; - mon->y = ny; - mgrd[nx][ny] = monster_index(mon); - -#ifdef DEBUG_DIAGNOSTICS - moname(m2->type, true, DESC_PLAIN, mname); - mprf(MSGCH_DIAGNOSTICS, - "Swap: %s (%d,%d)->(%d,%d) (%d;%d)", - mname, m2->x, m2->y, cx, cy, mon->speed_increment, mon->speed); -#endif - m2->x = cx; - m2->y = cy; - const int m2i = monster_index(m2); - ASSERT(m2i >= 0 && m2i < MAX_MONSTERS); - mgrd[cx][cy] = m2i; - immobile_monster[m2i] = true; - - mons_trap(mon); - mons_trap(m2); - - return (false); -} - -static void monster_move(struct monsters *monster) -{ - FixedArray < bool, 3, 3 > good_move; - int count_x, count_y, count; - int okmove = DNGN_SHALLOW_WATER; - - const int habitat = monster_habitat( monster->type ); - bool deep_water_available = false; - - // let's not even bother with this if mmov_x and mmov_y are zero. - if (mmov_x == 0 && mmov_y == 0) - return; - - // effectively slows down monster movement across water. - // Fire elementals can't cross at all. - if (monster->type == MONS_FIRE_ELEMENTAL || one_chance_in(5)) - okmove = DNGN_WATER_STUCK; - - if (mons_flies(monster) > 0 - || habitat != DNGN_FLOOR - || mons_class_flag( monster->type, M_AMPHIBIOUS )) - { - okmove = MINMOVE; - } - - for (count_x = 0; count_x < 3; count_x++) - { - for (count_y = 0; count_y < 3; count_y++) - { - good_move[count_x][count_y] = true; - const int targ_x = monster->x + count_x - 1; - const int targ_y = monster->y + count_y - 1; - int target_grid = grd[targ_x][targ_y]; - - const int targ_cloud = env.cgrid[ targ_x ][ targ_y ]; - const int curr_cloud = env.cgrid[ monster->x ][ monster->y ]; - - // bounds check - don't consider moving out of grid! - if (targ_x < 0 || targ_x >= GXM || targ_y < 0 || targ_y >= GYM) - { - good_move[count_x][count_y] = false; - continue; - } - - if (target_grid == DNGN_DEEP_WATER) - deep_water_available = true; - - if (monster->type == MONS_BORING_BEETLE - && target_grid == DNGN_ROCK_WALL) - { - // don't burrow out of bounds - if (targ_x <= 7 || targ_x >= (GXM - 8) - || targ_y <= 7 || targ_y >= (GYM - 8)) - { - good_move[count_x][count_y] = false; - continue; - } - - // don't burrow at an angle (legacy behaviour) - if (count_x != 1 && count_y != 1) - { - good_move[count_x][count_y] = false; - continue; - } - } - else if (grd[ targ_x ][ targ_y ] < okmove) - { - good_move[count_x][count_y] = false; - continue; - } - else if (!habitat_okay( monster, target_grid )) - { - good_move[count_x][count_y] = false; - continue; - } - - if (monster->type == MONS_WANDERING_MUSHROOM - && see_grid(targ_x, targ_y)) - { - good_move[count_x][count_y] = false; - continue; - } - - // Water elementals avoid fire and heat - if (monster->type == MONS_WATER_ELEMENTAL - && (target_grid == DNGN_LAVA - || targ_cloud == CLOUD_FIRE - || targ_cloud == CLOUD_FIRE_MON - || targ_cloud == CLOUD_STEAM - || targ_cloud == CLOUD_STEAM_MON)) - { - good_move[count_x][count_y] = false; - continue; - } - - // Fire elementals avoid water and cold - if (monster->type == MONS_FIRE_ELEMENTAL - && (target_grid == DNGN_DEEP_WATER - || target_grid == DNGN_SHALLOW_WATER - || target_grid == DNGN_BLUE_FOUNTAIN - || targ_cloud == CLOUD_COLD - || targ_cloud == CLOUD_COLD_MON)) - { - good_move[count_x][count_y] = false; - continue; - } - - // Submerged water creatures avoid the shallows where - // they would be forced to surface. -- bwr - if (habitat == DNGN_DEEP_WATER - && (targ_x != you.x_pos || targ_y != you.y_pos) - && target_grid != DNGN_DEEP_WATER - && grd[monster->x][monster->y] == DNGN_DEEP_WATER - && (mons_has_ench( monster, ENCH_SUBMERGED ) - || monster->hit_points < (monster->max_hit_points * 3) / 4)) - { - good_move[count_x][count_y] = false; - continue; - } - - // smacking the player is always a good move if - // we're hostile (even if we're heading somewhere - // else) - - // smacking another monster is good, if the monsters - // are aligned differently - if (mgrd[targ_x][targ_y] != NON_MONSTER) - { - const int thismonster = monster_index(monster), - targmonster = mgrd[targ_x][targ_y]; - if (mons_aligned(thismonster, targmonster) - && targmonster != MHITNOT - && targmonster != MHITYOU - && !mons_can_displace(monster, &menv[targmonster])) - { - good_move[count_x][count_y] = false; - continue; - } - } - - // wandering through a trap is OK if we're pretty healthy, or - // really stupid. - if (trap_at_xy(targ_x,targ_y) >= 0 - && mons_intel(monster->type) != I_PLANT) - { - if (monster->hit_points < monster->max_hit_points / 2) - { - good_move[count_x][count_y] = false; - continue; - } - } - - if (targ_cloud != EMPTY_CLOUD) - { - if (curr_cloud != EMPTY_CLOUD - && env.cloud[targ_cloud].type == env.cloud[curr_cloud].type) - { - continue; - } - - switch (env.cloud[ targ_cloud ].type) - { - case CLOUD_FIRE: - case CLOUD_FIRE_MON: - if (mons_res_fire(monster) > 0) - continue; - - if (monster->hit_points >= 15 + random2avg(46, 5)) - continue; - break; - - case CLOUD_STINK: - case CLOUD_STINK_MON: - if (mons_res_poison(monster) > 0) - continue; - if (1 + random2(5) < monster->hit_dice) - continue; - if (monster->hit_points >= random2avg(19, 2)) - continue; - break; - - case CLOUD_COLD: - case CLOUD_COLD_MON: - if (mons_res_cold(monster) > 0) - continue; - - if (monster->hit_points >= 15 + random2avg(46, 5)) - continue; - break; - - case CLOUD_POISON: - case CLOUD_POISON_MON: - if (mons_res_poison(monster) > 0) - continue; - - if (monster->hit_points >= random2avg(37, 4)) - continue; - break; - - // this isn't harmful, but dumb critters might think so. - case CLOUD_GREY_SMOKE: - case CLOUD_GREY_SMOKE_MON: - if (mons_intel(monster->type) > I_ANIMAL || coinflip()) - continue; - - if (mons_res_fire(monster) > 0) - continue; - - if (monster->hit_points >= random2avg(19, 2)) - continue; - break; - - default: - continue; // harmless clouds - } - - // if we get here, the cloud is potentially harmful. - // exceedingly dumb creatures will still wander in. - if (mons_intel(monster->type) != I_PLANT) - good_move[count_x][count_y] = false; - } - } - } // now we know where we _can_ move. - - // normal/smart monsters know about secret doors (they _live_ in the - // dungeon!) - if (grd[monster->x + mmov_x][monster->y + mmov_y] == DNGN_CLOSED_DOOR - || (grd[monster->x + mmov_x][monster->y + mmov_y] == DNGN_SECRET_DOOR - && (mons_intel(monster_index(monster)) == I_HIGH - || mons_intel(monster_index(monster)) == I_NORMAL))) - { - if (monster->type == MONS_ZOMBIE_SMALL - || monster->type == MONS_ZOMBIE_LARGE - || monster->type == MONS_SIMULACRUM_SMALL - || monster->type == MONS_SIMULACRUM_LARGE - || monster->type == MONS_SKELETON_SMALL - || monster->type == MONS_SKELETON_LARGE - || monster->type == MONS_SPECTRAL_THING) - { - // for zombies, monster type is kept in mon->number - if (mons_itemuse(monster->number) >= MONUSE_OPEN_DOORS) - { - grd[monster->x + mmov_x][monster->y + mmov_y] = DNGN_OPEN_DOOR; - return; - } - } - else if (mons_itemuse(monster->type) >= MONUSE_OPEN_DOORS) - { - grd[monster->x + mmov_x][monster->y + mmov_y] = DNGN_OPEN_DOOR; - return; - } - } // endif - secret/closed doors - - // jellies eat doors. Yum! - if ((grd[monster->x + mmov_x][monster->y + mmov_y] == DNGN_CLOSED_DOOR - || grd[monster->x + mmov_x][monster->y + mmov_y] == DNGN_OPEN_DOOR) - && mons_itemuse(monster->type) == MONUSE_EATS_ITEMS) - { - grd[monster->x + mmov_x][monster->y + mmov_y] = DNGN_FLOOR; - - jelly_grows(monster); - } // done door-eating jellies - - - // water creatures have a preferance for water they can hide in -- bwr - if (habitat == DNGN_DEEP_WATER - && deep_water_available - && grd[monster->x][monster->y] != DNGN_DEEP_WATER - && grd[monster->x + mmov_x][monster->y + mmov_y] != DNGN_DEEP_WATER - && (monster->x + mmov_x != you.x_pos - || monster->y + mmov_y != you.y_pos) - && (coinflip() - || monster->hit_points <= (monster->max_hit_points * 3) / 4)) - { - count = 0; - - for (count_x = 0; count_x < 3; count_x++) - { - for (count_y = 0; count_y < 3; count_y++) - { - if (good_move[count_x][count_y] - && grd[monster->x + count_x - 1][monster->y + count_y - 1] - == DNGN_DEEP_WATER) - { - count++; - - if (one_chance_in( count )) - { - mmov_x = count_x - 1; - mmov_y = count_y - 1; - } - } - } - } - } - - - // now, if a monster can't move in its intended direction, try - // either side. If they're both good, move in whichever dir - // gets it closer(farther for fleeing monsters) to its target. - // If neither does, do nothing. - if (good_move[mmov_x + 1][mmov_y + 1] == false) - { - int current_distance = grid_distance( monster->x, monster->y, - monster->target_x, - monster->target_y ); - - int dir = -1; - int i, mod, newdir; - - for (i = 0; i < 8; i++) - { - if (compass_x[i] == mmov_x && compass_y[i] == mmov_y) - { - dir = i; - break; - } - } - - if (dir < 0) - goto forget_it; - - int dist[2]; - - // first 1 away, then 2 (3 is silly) - for (int j = 1; j <= 2; j++) - { - int sdir, inc; - - if (coinflip()) - { - sdir = -j; - inc = 2*j; - } - else - { - sdir = j; - inc = -2*j; - } - - // try both directions - for (mod = sdir, i = 0; i < 2; mod += inc, i++) - { - newdir = (dir + 8 + mod) % 8; - if (good_move[compass_x[newdir] + 1][compass_y[newdir] + 1]) - { - dist[i] = grid_distance( monster->x + compass_x[newdir], - monster->y + compass_y[newdir], - monster->target_x, - monster->target_y ); - } - else - { - dist[i] = (monster->behaviour == BEH_FLEE) ? (-FAR_AWAY) - : FAR_AWAY; - } - } - - // now choose - if (dist[0] == dist[1] && abs(dist[0]) == FAR_AWAY) - continue; - - // which one was better? -- depends on FLEEING or not - if (monster->behaviour == BEH_FLEE) - { - if (dist[0] >= dist[1] && dist[0] >= current_distance) - { - mmov_x = compass_x[((dir+8)+sdir)%8]; - mmov_y = compass_y[((dir+8)+sdir)%8]; - break; - } - if (dist[1] >= dist[0] && dist[1] >= current_distance) - { - mmov_x = compass_x[((dir+8)-sdir)%8]; - mmov_y = compass_y[((dir+8)-sdir)%8]; - break; - } - } - else - { - if (dist[0] <= dist[1] && dist[0] <= current_distance) - { - mmov_x = compass_x[((dir+8)+sdir)%8]; - mmov_y = compass_y[((dir+8)+sdir)%8]; - break; - } - if (dist[1] <= dist[0] && dist[1] <= current_distance) - { - mmov_x = compass_x[((dir+8)-sdir)%8]; - mmov_y = compass_y[((dir+8)-sdir)%8]; - break; - } - } - } - } // end - try to find good alternate move - -forget_it: - - // ------------------------------------------------------------------ - // if we haven't found a good move by this point, we're not going to. - // ------------------------------------------------------------------ - - // take care of beetle burrowing - if (monster->type == MONS_BORING_BEETLE) - { - if (grd[monster->x + mmov_x][monster->y + mmov_y] == DNGN_ROCK_WALL - && good_move[mmov_x + 1][mmov_y + 1] == true) - { - grd[monster->x + mmov_x][monster->y + mmov_y] = DNGN_FLOOR; - - if (!silenced(you.x_pos, you.y_pos)) - mpr("You hear a grinding noise.", MSGCH_SOUND); - } - } - - mgrd[monster->x][monster->y] = NON_MONSTER; - - if (good_move[mmov_x + 1][mmov_y + 1] && !(mmov_x == 0 && mmov_y == 0)) - { - // check for attacking player - if (monster->x + mmov_x == you.x_pos - && monster->y + mmov_y == you.y_pos) - { - monster_attack( monster_index(monster) ); - mmov_x = 0; - mmov_y = 0; - } - - // If we're following the player through stairs, the only valid - // movement is towards the player. -- bwr - if (testbits( monster->flags, MF_TAKING_STAIRS )) - { -#if DEBUG_DIAGNOSTICS - snprintf( info, INFO_SIZE, "%s is skipping movement in order to follow.", - ptr_monam( monster, DESC_CAP_THE ) ); - - mpr( info, MSGCH_DIAGNOSTICS ); -#endif - mmov_x = 0; - mmov_y = 0; - } - - // check for attacking another monster - int targmon = mgrd[monster->x + mmov_x][monster->y + mmov_y]; - if (targmon != NON_MONSTER) - { - if (mons_aligned(monster_index(monster), targmon)) - monster_swaps_places(monster, mmov_x, mmov_y); - else - monsters_fight(monster_index(monster), targmon); - - // If the monster swapped places, the work's already done. - mmov_x = 0; - mmov_y = 0; - } - - if (monster->type == MONS_EFREET - || monster->type == MONS_FIRE_ELEMENTAL) - { - place_cloud( CLOUD_FIRE_MON, monster->x, monster->y, - 2 + random2(4) ); - } - - if (monster->type == MONS_ROTTING_DEVIL) - { - place_cloud( CLOUD_MIASMA_MON, monster->x, monster->y, - 2 + random2(3) ); - } - - /* this appears to be the real one, ie where the movement occurs: */ - monster->x += mmov_x; - monster->y += mmov_y; - } - else - { - // fleeing monsters that can't move will panic and possibly - // turn to face their attacker - if (monster->behaviour == BEH_FLEE) - behaviour_event(monster, ME_CORNERED); - } - - /* need to put in something so that monster picks up multiple - items (eg ammunition) identical to those it's carrying. */ - mgrd[monster->x][monster->y] = monster_index(monster); - - // monsters stepping on traps: - if (mmov_x != 0 || mmov_y != 0) - { - mons_trap(monster); - } -} // end monster_move() - - -static bool plant_spit(struct monsters *monster, struct bolt &pbolt) -{ - bool didSpit = false; - - char spit_string[INFO_SIZE]; - - // setup plant spit - strcpy( pbolt.beam_name, "acid" ); - pbolt.type = SYM_ZAP; - pbolt.range = 9; - pbolt.rangeMax = 9; - pbolt.colour = YELLOW; - pbolt.flavour = BEAM_ACID; - pbolt.beam_source = monster_index(monster); - pbolt.damage = dice_def( 3, 7 ); - pbolt.hit = 20 + (3 * monster->hit_dice); - pbolt.thrower = KILL_MON_MISSILE; - pbolt.aux_source = NULL; - - // fire tracer - fire_tracer(monster, pbolt); - - if (mons_should_fire(pbolt)) - { - strcpy( spit_string, " spits" ); - if (pbolt.target_x == you.x_pos && pbolt.target_y == you.y_pos) - strcat( spit_string, " at you" ); - - strcat( spit_string, "." ); - simple_monster_message( monster, spit_string ); - - fire_beam( pbolt ); - didSpit = true; - } - - return (didSpit); -} // end plant_spit() - -static void mons_in_cloud(struct monsters *monster) -{ - int wc = env.cgrid[monster->x][monster->y]; - int hurted = 0; - struct bolt beam; - - const int speed = ((monster->speed > 0) ? monster->speed : 10); - bool wake = false; - - if (mons_is_mimic( monster->type )) - { - mimic_alert(monster); - return; - } - - switch (env.cloud[wc].type) - { - case CLOUD_DEBUGGING: - cprintf("Fatal error: monster steps on nonexistent cloud!"); - exit(0); - return; - - case CLOUD_FIRE: - case CLOUD_FIRE_MON: - if (monster->type == MONS_FIRE_VORTEX - || monster->type == MONS_EFREET - || monster->type == MONS_FIRE_ELEMENTAL) - { - return; - } - - simple_monster_message(monster, " is engulfed in flame!"); - - if (mons_res_fire(monster) > 0) - return; - - hurted += ((random2avg(16, 3) + 6) * 10) / speed; - - if (mons_res_fire(monster) < 0) - hurted += (random2(15) * 10) / speed; - - // remember that the above is in addition to the other you.damage. - hurted -= random2(1 + monster->armour_class); - break; // to damage routine at end {dlb} - - case CLOUD_STINK: - case CLOUD_STINK_MON: - simple_monster_message(monster, " is engulfed in noxious gasses!"); - - if (mons_res_poison(monster) > 0) - return; - - beam.flavour = BEAM_CONFUSION; - - if (1 + random2(27) >= monster->hit_dice) - mons_ench_f2(monster, beam); - - hurted += (random2(3) * 10) / speed; - break; // to damage routine at end {dlb} - - case CLOUD_COLD: - case CLOUD_COLD_MON: - simple_monster_message(monster, " is engulfed in freezing vapours!"); - - if (mons_res_cold(monster) > 0) - return; - - hurted += ((6 + random2avg(16, 3)) * 10) / speed; - - if (mons_res_cold(monster) < 0) - hurted += (random2(15) * 10) / speed; - - // remember that the above is in addition to the other damage. - hurted -= random2(1 + monster->armour_class); - break; // to damage routine at end {dlb} - - // what of armour of poison resistance here? {dlb} - case CLOUD_POISON: - case CLOUD_POISON_MON: - simple_monster_message(monster, " is engulfed in a cloud of poison!"); - - if (mons_res_poison(monster) > 0) - return; - - poison_monster(monster, (env.cloud[wc].type == CLOUD_POISON)); - // If the monster got poisoned, wake it up. - wake = true; - - hurted += (random2(8) * 10) / speed; - - if (mons_res_poison(monster) < 0) - hurted += (random2(4) * 10) / speed; - break; // to damage routine at end {dlb} - - case CLOUD_STEAM: - case CLOUD_STEAM_MON: - // couldn't be bothered coding for armour of res fire - - // what of whether it is wearing steam dragon armour? {dlb} - if (monster->type == MONS_STEAM_DRAGON) - return; - - simple_monster_message(monster, " is engulfed in steam!"); - - if (mons_res_fire(monster) > 0) - return; - - hurted += (random2(6) * 10) / speed; - - if (mons_res_fire(monster) < 0) - hurted += (random2(6) * 10) / speed; - - hurted -= random2(1 + monster->armour_class); - break; // to damage routine at end {dlb} - - case CLOUD_MIASMA: - case CLOUD_MIASMA_MON: - simple_monster_message(monster, " is engulfed in a dark miasma!"); - - if (mons_holiness(monster) != MH_NATURAL - || monster->type == MONS_DEATH_DRAKE) - return; - - poison_monster(monster, (env.cloud[wc].type == CLOUD_MIASMA)); - - if (monster->max_hit_points > 4 && coinflip()) - monster->max_hit_points--; - - beam.flavour = BEAM_SLOW; - - if (one_chance_in(3)) - mons_ench_f2(monster, beam); - - hurted += (10 * random2avg(12, 3)) / speed; // 3 - break; // to damage routine at end {dlb} - - default: // 'harmless' clouds -- colored smoke, etc {dlb}. - return; - } - - // A sleeping monster that sustains damage will wake up. - if ((wake || hurted > 0) && monster->behaviour == BEH_SLEEP) - { - // We have no good coords to give the monster as the source of the - // disturbance other than the cloud itself. - behaviour_event(monster, ME_DISTURB, MHITNOT, monster->x, monster->y); - } - - if (hurted < 0) - hurted = 0; - else if (hurted > 0) - { - hurt_monster(monster, hurted); - - if (monster->hit_points < 1) - { - switch (env.cloud[wc].type) - { - case CLOUD_FIRE_MON: - case CLOUD_STINK_MON: - case CLOUD_COLD_MON: - case CLOUD_POISON_MON: - case CLOUD_STEAM_MON: - case CLOUD_MIASMA_MON: - monster_die(monster, KILL_MISC, 0); - break; - default: - monster_die(monster, KILL_YOU, 0); - } - - switch (env.cloud[wc].type) - { - case CLOUD_FIRE: - case CLOUD_FIRE_MON: - case CLOUD_COLD: - case CLOUD_COLD_MON: - case CLOUD_STEAM: - case CLOUD_STEAM_MON: - monster->speed_increment = 1; - } - } - } -} // end mons_in_cloud() - -unsigned char monster_habitat(int which_class) -{ - switch (which_class) - { - case MONS_BIG_FISH: - case MONS_GIANT_GOLDFISH: - case MONS_ELECTRICAL_EEL: - case MONS_JELLYFISH: - case MONS_SWAMP_WORM: - case MONS_WATER_ELEMENTAL: - return (DNGN_DEEP_WATER); // no shallow water (only) monsters? {dlb} - // must remain DEEP_WATER for now, else breaks code {dlb} - - case MONS_LAVA_WORM: - case MONS_LAVA_FISH: - case MONS_LAVA_SNAKE: - case MONS_SALAMANDER: - return (DNGN_LAVA); - - default: - return (DNGN_FLOOR); // closest match to terra firma {dlb} - } -} // end monster_habitat() - -bool monster_descriptor(int which_class, unsigned char which_descriptor) -{ - if (which_descriptor == MDSC_LEAVES_HIDE) - { - switch (which_class) - { - case MONS_DRAGON: - case MONS_TROLL: - case MONS_ICE_DRAGON: - case MONS_STEAM_DRAGON: - case MONS_MOTTLED_DRAGON: - case MONS_STORM_DRAGON: - case MONS_GOLDEN_DRAGON: - case MONS_SWAMP_DRAGON: - return (true); - default: - return (false); - } - } - - if (which_descriptor == MDSC_REGENERATES) - { - switch (which_class) - { - case MONS_CACODEMON: - case MONS_DEEP_TROLL: - case MONS_HELLWING: - case MONS_IMP: - case MONS_IRON_TROLL: - case MONS_LEMURE: - case MONS_ROCK_TROLL: - case MONS_SLIME_CREATURE: - case MONS_SNORG: - case MONS_TROLL: - case MONS_HYDRA: - case MONS_KILLER_KLOWN: - return (true); - default: - return (false); - } - } - - if (which_descriptor == MDSC_NOMSG_WOUNDS) - { - switch (which_class) - { - case MONS_RAKSHASA: - case MONS_RAKSHASA_FAKE: - case MONS_SKELETON_LARGE: - case MONS_SKELETON_SMALL: - case MONS_ZOMBIE_LARGE: - case MONS_ZOMBIE_SMALL: - case MONS_SIMULACRUM_SMALL: - case MONS_SIMULACRUM_LARGE: - return (true); - default: - return (false); - } - } - return (false); -} // end monster_descriptor() - -bool message_current_target(void) -{ - if (you.prev_targ != MHITNOT && you.prev_targ != MHITYOU) - { - struct monsters *montarget = &menv[you.prev_targ]; - - if (mons_near(montarget) && player_monster_visible( montarget )) - { - snprintf( info, INFO_SIZE, - "You are currently targeting %s (use p/t to fire).", - ptr_monam(montarget, DESC_NOCAP_THE) ); - - mpr(info); - return (true); // early return {dlb} - } - - mpr("You have no current target."); - } - - return (false); -} // end message_current_target() - -// aaah, the simple joys of pointer arithmetic! {dlb}: -unsigned int monster_index(const monsters *monster) -{ - return (monster - menv.buffer()); -} // end monster_index() - -bool hurt_monster(struct monsters * victim, int damage_dealt) -{ - bool just_a_scratch = true; - - if (damage_dealt > 0) - { - just_a_scratch = false; - victim->hit_points -= damage_dealt; - } - - return (!just_a_scratch); -} // end hurt_monster() - -bool heal_monster(struct monsters * patient, int health_boost, - bool permit_growth) -{ - if (health_boost < 1) - return (false); - else if (!permit_growth && patient->hit_points == patient->max_hit_points) - return (false); - else - { - patient->hit_points += health_boost; - - if (patient->hit_points > patient->max_hit_points) - { - if (permit_growth) - patient->max_hit_points++; - - patient->hit_points = patient->max_hit_points; - } - } - - return (true); -} // end heal_monster() - -static int map_wand_to_mspell(int wand_type) -{ - int mzap = 0; - - switch (wand_type) - { - case WAND_FLAME: - mzap = MS_FLAME; - break; - case WAND_FROST: - mzap = MS_FROST; - break; - case WAND_SLOWING: - mzap = MS_SLOW; - break; - case WAND_HASTING: - mzap = MS_HASTE; - break; - case WAND_MAGIC_DARTS: - mzap = MS_MMISSILE; - break; - case WAND_HEALING: - mzap = MS_HEAL; - break; - case WAND_PARALYSIS: - mzap = MS_PARALYSIS; - break; - case WAND_FIRE: - mzap = MS_FIRE_BOLT; - break; - case WAND_COLD: - mzap = MS_COLD_BOLT; - break; - case WAND_CONFUSION: - mzap = MS_CONFUSE; - break; - case WAND_INVISIBILITY: - mzap = MS_INVIS; - break; - case WAND_TELEPORTATION: - mzap = MS_TELEPORT_OTHER; - break; - case WAND_LIGHTNING: - mzap = MS_LIGHTNING_BOLT; - break; - case WAND_DRAINING: - mzap = MS_NEGATIVE_BOLT; - break; - default: - mzap = 0; - break; - } - - return (mzap); -} |