diff options
Diffstat (limited to 'crawl-ref/source/spells2.cc')
| -rw-r--r-- | crawl-ref/source/spells2.cc | 90 |
1 files changed, 75 insertions, 15 deletions
diff --git a/crawl-ref/source/spells2.cc b/crawl-ref/source/spells2.cc index dbd8f00f3b..45bd01391c 100644 --- a/crawl-ref/source/spells2.cc +++ b/crawl-ref/source/spells2.cc @@ -29,6 +29,7 @@ #include "beam.h" #include "cloud.h" #include "direct.h" +#include "dungeon.h" #include "effects.h" #include "itemname.h" #include "items.h" @@ -112,14 +113,79 @@ unsigned char detect_items( int pow ) return (items_found); } // end detect_items() +static void fuzz_detect_creatures(int pow, int *fuzz_radius, int *fuzz_chance) +{ +#ifdef DEBUG_DIAGNOSTICS + mprf("dc_fuzz: Power is %d", pow); +#endif + + if (pow < 1) + pow = 1; + + *fuzz_radius = pow >= 50? 1 : 2; + + // Fuzz chance starts off at 100% and declines to a low of 10% for obscenely + // powerful castings (pow caps around the 60 mark). + *fuzz_chance = 100 - 90 * (pow - 1) / 59; + if (*fuzz_chance < 10) + *fuzz_chance = 10; +} + +static void mark_detected_creature(int gridx, int gridy, const monsters *mon, + int fuzz_chance, int fuzz_radius) +{ + if (fuzz_radius && fuzz_chance > random2(100)) + { + const int fuzz_diam = 2 * fuzz_radius + 1; + + int gx, gy; + bool found_good = false; + for (int itry = 0; itry < 5; ++itry) + { + gx = gridx + random2(fuzz_diam) - fuzz_radius; + gy = gridy + random2(fuzz_diam) - fuzz_radius; + + if (in_map_grid(gx, gy) && !feat_blocks_movement(grd[gx][gy])) + { + found_good = true; + break; + } + } + + if (found_good) + { + gridx = gx; + gridy = gy; + } + } + + const int envx = gridx - 1, + envy = gridy - 1; + + unsigned short flags = env.map[envx][envy]; + flags = !flags || (flags & ENVF_DETECTED)? + ENVF_DETECTED + : 0; + + env.map[envx][envy] = + mons_char( mon->type ) | ENVF_DETECT_MONS | flags; +} + unsigned char detect_creatures( int pow ) { + int fuzz_radius = 0, fuzz_chance = 0; + fuzz_detect_creatures(pow, &fuzz_radius, &fuzz_chance); + if (pow > 50) pow = 50; unsigned char creatures_found = 0; const int map_radius = 8 + random2(8) + pow; + // Clear the map so detect creatures is more useful and the detection + // fuzz is harder to analyse by averaging. + clear_map(); + mpr("You detect creatures!"); for (int i = you.x_pos - map_radius; i < you.x_pos + map_radius; i++) @@ -132,19 +198,12 @@ unsigned char detect_creatures( int pow ) if (mgrd[i][j] != NON_MONSTER) { struct monsters *mon = &menv[ mgrd[i][j] ]; - - unsigned short flags = env.map[i - 1][j - 1]; - flags = !flags || (flags & ENVF_DETECTED)? - ENVF_DETECTED - : 0; - - env.map[i - 1][j - 1] = - mons_char( mon->type ) | ENVF_DETECT_MONS | flags; + mark_detected_creature(i, j, mon, fuzz_chance, fuzz_radius); // Assuming that highly intelligent spellcasters can // detect scyring. -- bwr if (mons_intel( mon->type ) == I_HIGH - && mons_flag( mon->type, M_SPELLCASTER )) + && mons_class_flag( mon->type, M_SPELLCASTER )) { behaviour_event( mon, ME_DISTURB, MHITYOU, you.x_pos, you.y_pos ); @@ -707,11 +766,12 @@ void turn_undead(int pow) } // end "for tu" } // end turn_undead() -void holy_word(int pow) +void holy_word(int pow, bool silent) { struct monsters *monster; - mpr("You speak a Word of immense power!"); + if (!silent) + mpr("You speak a Word of immense power!"); // doubt this will ever happen, but it's here as a safety -- bwr if (pow > 300) @@ -859,7 +919,7 @@ void cast_refrigeration(int pow) print_wounds(monster); //jmf: "slow snakes" finally available - if (mons_flag( monster->type, M_COLD_BLOOD ) && coinflip()) + if (mons_class_flag( monster->type, M_COLD_BLOOD ) && coinflip()) mons_add_ench(monster, ENCH_SLOW); } } @@ -1082,7 +1142,7 @@ char burn_freeze(int pow, char flavour) if (flavour == BEAM_COLD) { - if (mons_flag( monster->type, M_COLD_BLOOD ) && coinflip()) + if (mons_class_flag( monster->type, M_COLD_BLOOD ) && coinflip()) mons_add_ench(monster, ENCH_SLOW); const int cold_res = mons_res_cold( monster ); @@ -1314,10 +1374,10 @@ void summon_scorpions(int pow) } } // end summon_scorpions() -void summon_ice_beast_etc(int pow, int ibc) +void summon_ice_beast_etc(int pow, int ibc, bool divine_gift) { int numsc = ENCH_ABJ_II + (random2(pow) / 4); - int beha = BEH_FRIENDLY; + int beha = divine_gift? BEH_GOD_GIFT : BEH_FRIENDLY; if (numsc > ENCH_ABJ_VI) numsc = ENCH_ABJ_VI; |