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/*
* File: mon-project.cc
* Summary: Slow projectiles, done as monsters.
* Written by: Adam Borowski
*/
#include "AppHdr.h"
#include "mon-project.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <cmath>
#include "externs.h"
#include "coord.h"
#include "env.h"
#include "mgen_data.h"
#include "mon-place.h"
#include "mon-stuff.h"
#include "stuff.h"
#include "terrain.h"
#include "viewchar.h"
bool mons_is_projectile(monster_type mt)
{
return (mt == MONS_ORB_OF_DESTRUCTION);
}
bool cast_iood(actor *caster, int pow, bolt *beam)
{
int mtarg = mgrd(beam->target);
int mind = mons_place(mgen_data(MONS_ORB_OF_DESTRUCTION,
(caster->atype() == ACT_PLAYER) ? BEH_FRIENDLY :
((monsters*)caster)->wont_attack() ? BEH_FRIENDLY : BEH_HOSTILE,
caster,
0,
SPELL_IOOD,
coord_def(-1, -1),
(mtarg != NON_MONSTER) ? mtarg :
(you.pos() == beam->target) ? MHITYOU : MHITNOT,
0,
GOD_NO_GOD));
if (mind == -1)
{
canned_msg(MSG_NOTHING_HAPPENS);
return (false);
}
monsters &mon = menv[mind];
const coord_def pos = caster->pos();
mon.props["iood_x"] = (float)pos.x;
mon.props["iood_y"] = (float)pos.y;
mon.props["iood_vx"] = (float)(beam->target.x - pos.x);
mon.props["iood_vy"] = (float)(beam->target.y - pos.y);
mon.props["iood_kc"].get_byte() = (caster->atype() == ACT_PLAYER) ? KC_YOU :
((monsters*)caster)->wont_attack() ? KC_FRIENDLY : KC_OTHER;
mon.flags &= ~MF_JUST_SUMMONED;
// Move away from the caster's square.
iood_act(mon);
mon.lose_energy(EUT_MOVE);
return (true);
}
void _normalize(float &x, float &y)
{
const float d = sqrt(x*x + y*y);
if (d <= 0.000001)
return;
x/=d;
y/=d;
}
void _iood_dissipate(monsters &mon)
{
simple_monster_message(&mon, " dissipates.");
mpr("iood: dissipating");
monster_die(&mon, KILL_DISMISSED, NON_MONSTER);
}
bool _iood_hit(monsters &mon, const coord_def &pos)
{
bolt beam;
beam.name = "orb of destruction";
beam.flavour = BEAM_NUKE;
beam.attitude = mon.attitude;
beam.thrower = (mon.props["iood_kc"].get_byte() == KC_YOU)
? KILL_YOU_MISSILE : KILL_MON_MISSILE;
beam.colour = WHITE;
beam.type = dchar_glyph(DCHAR_FIRED_BURST);
beam.range = 1;
beam.source = pos;
beam.target = pos;
beam.hit = AUTOMATIC_HIT;
beam.damage = dice_def(3, 20);
beam.fire();
return (true);
}
// returns true if the orb is gone
bool iood_act(monsters &mon)
{
ASSERT(mons_is_projectile(mon.type));
float x = mon.props["iood_x"];
float y = mon.props["iood_y"];
float vx = mon.props["iood_vx"];
float vy = mon.props["iood_vy"];
mprf("iood_act: pos (%d,%d) rpos (%f,%f) v (%f,%f)", mon.pos().x, mon.pos().y,
x, y, vx, vy);
if (!vx && !vy) // not initialized
{
_iood_dissipate(mon);
return (true);
}
coord_def target(-1, -1);
if (mon.foe == MHITYOU)
target = you.pos();
else if (invalid_monster_index(mon.foe))
;
else if (invalid_monster_type(menv[mon.foe].type))
{
// Our target is gone. Since picking a new one would require
// intelligence, the orb continues on a ballistic course.
mon.foe = MHITNOT;
}
else
target = menv[mon.foe].pos();
_normalize(vx, vy);
x += vx;
y += vy;
mon.props["iood_x"] = x;
mon.props["iood_y"] = y;
coord_def pos(round(x), round(y));
if (!in_bounds(pos))
{
_iood_dissipate(mon);
return (true);
}
if (pos == mon.pos())
return (false);
if (cell_is_solid(pos) || actor_at(pos))
{
if (_iood_hit(mon, pos))
{
monster_die(&mon, KILL_DISMISSED, NON_MONSTER);
return (true);
}
}
if (!mon.move_to_pos(pos))
{
_iood_dissipate(mon);
return (true);
}
return (false);
}
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