/*
 * Copyright (c) ZeniMax Media Inc.
 * Licensed under the GNU General Public License 2.0.
*/
/* =======================================================================
 *
 * Iron Maiden.
 *
 * =======================================================================
 */

#include "../../header/local.h"
#include "chick.h"

qboolean visible(edict_t *self, edict_t *other);

void chick_stand(edict_t *self);
void chick_run(edict_t *self);
void chick_reslash(edict_t *self);
void chick_rerocket(edict_t *self);
void chick_attack1(edict_t *self);

static int sound_missile_prelaunch;
static int sound_missile_launch;
static int sound_melee_swing;
static int sound_melee_hit;
static int sound_missile_reload;
static int sound_death1;
static int sound_death2;
static int sound_fall_down;
static int sound_idle1;
static int sound_idle2;
static int sound_pain1;
static int sound_pain2;
static int sound_pain3;
static int sound_sight;
static int sound_search;

void
ChickMoan(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	if (random() < 0.5)
	{
		gi.sound(self, CHAN_VOICE, sound_idle1, 1, ATTN_IDLE, 0);
	}
	else
	{
		gi.sound(self, CHAN_VOICE, sound_idle2, 1, ATTN_IDLE, 0);
	}
}

mframe_t chick_frames_fidget[] = {
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, ChickMoan},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL}
};

mmove_t chick_move_fidget = {
	FRAME_stand201,
   	FRAME_stand230,
   	chick_frames_fidget,
   	chick_stand
};

void
chick_fidget(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	if (self->monsterinfo.aiflags & AI_STAND_GROUND)
	{
		return;
	}

	if (random() <= 0.3)
	{
		self->monsterinfo.currentmove = &chick_move_fidget;
	}
}

mframe_t chick_frames_stand[] = {
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, NULL},
	{ai_stand, 0, chick_fidget},
};

mmove_t chick_move_stand = {
	FRAME_stand101,
   	FRAME_stand130,
   	chick_frames_stand,
   	NULL
};

void
chick_stand(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	self->monsterinfo.currentmove = &chick_move_stand;
}

mframe_t chick_frames_start_run[] = {
	{ai_run, 1, NULL},
	{ai_run, 0, NULL},
	{ai_run, 0, NULL},
	{ai_run, -1, NULL},
	{ai_run, -1, NULL},
	{ai_run, 0, NULL},
	{ai_run, 1, NULL},
	{ai_run, 3, NULL},
	{ai_run, 6, NULL},
	{ai_run, 3, NULL}
};

mmove_t chick_move_start_run = {
	FRAME_walk01,
   	FRAME_walk10,
   	chick_frames_start_run,
   	chick_run
};

mframe_t chick_frames_run[] = {
	{ai_run, 6, NULL},
	{ai_run, 8, NULL},
	{ai_run, 13, NULL},
	{ai_run, 5, NULL},
	{ai_run, 7, NULL},
	{ai_run, 4, NULL},
	{ai_run, 11, NULL},
	{ai_run, 5, NULL},
	{ai_run, 9, NULL},
	{ai_run, 7, NULL}
};

mmove_t chick_move_run = {
	FRAME_walk11,
   	FRAME_walk20,
   	chick_frames_run,
   	NULL
};

mframe_t chick_frames_walk[] = {
	{ai_walk, 6, NULL},
	{ai_walk, 8, NULL},
	{ai_walk, 13, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 7, NULL},
	{ai_walk, 4, NULL},
	{ai_walk, 11, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 9, NULL},
	{ai_walk, 7, NULL}
};

mmove_t chick_move_walk = {
	FRAME_walk11,
   	FRAME_walk20,
   	chick_frames_walk,
   	NULL
};

void
chick_walk(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	self->monsterinfo.currentmove = &chick_move_walk;
}

void
chick_run(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	if (self->monsterinfo.aiflags & AI_STAND_GROUND)
	{
		self->monsterinfo.currentmove = &chick_move_stand;
		return;
	}

	if ((self->monsterinfo.currentmove == &chick_move_walk) ||
		(self->monsterinfo.currentmove == &chick_move_start_run))
	{
		self->monsterinfo.currentmove = &chick_move_run;
	}
	else
	{
		self->monsterinfo.currentmove = &chick_move_start_run;
	}
}

mframe_t chick_frames_pain1[] = {
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL}
};

mmove_t chick_move_pain1 = {
	FRAME_pain101,
   	FRAME_pain105,
   	chick_frames_pain1,
   	chick_run
};

mframe_t chick_frames_pain2[] = {
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL}
};

mmove_t chick_move_pain2 = {
	FRAME_pain201,
   	FRAME_pain205,
   	chick_frames_pain2,
   	chick_run
};

mframe_t chick_frames_pain3[] = {
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, -6, NULL},
	{ai_move, 3, NULL},
	{ai_move, 11, NULL},
	{ai_move, 3, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 4, NULL},
	{ai_move, 1, NULL},
	{ai_move, 0, NULL},
	{ai_move, -3, NULL},
	{ai_move, -4, NULL},
	{ai_move, 5, NULL},
	{ai_move, 7, NULL},
	{ai_move, -2, NULL},
	{ai_move, 3, NULL},
	{ai_move, -5, NULL},
	{ai_move, -2, NULL},
	{ai_move, -8, NULL},
	{ai_move, 2, NULL}
};

mmove_t chick_move_pain3 = {
	FRAME_pain301,
   	FRAME_pain321,
   	chick_frames_pain3,
   	chick_run
};

void
chick_pain(edict_t *self, edict_t *other /* unused */,
	   	float kick /* unused */, int damage)
{
	float r;

  	if (!self)
	{
		return;
	}

	if (self->health < (self->max_health / 2))
	{
		self->s.skinnum = 1;
	}

	if (level.time < self->pain_debounce_time)
	{
		return;
	}

	self->pain_debounce_time = level.time + 3;

	r = random();

	if (r < 0.33)
	{
		gi.sound(self, CHAN_VOICE, sound_pain1, 1, ATTN_NORM, 0);
	}
	else if (r < 0.66)
	{
		gi.sound(self, CHAN_VOICE, sound_pain2, 1, ATTN_NORM, 0);
	}
	else
	{
		gi.sound(self, CHAN_VOICE, sound_pain3, 1, ATTN_NORM, 0);
	}

	if (skill->value == SKILL_HARDPLUS)
	{
		return; /* no pain anims in nightmare */
	}

	if (damage <= 10)
	{
		self->monsterinfo.currentmove = &chick_move_pain1;
	}
	else if (damage <= 25)
	{
		self->monsterinfo.currentmove = &chick_move_pain2;
	}
	else
	{
		self->monsterinfo.currentmove = &chick_move_pain3;
	}
}

void
chick_dead(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	VectorSet(self->mins, -16, -16, 0);
	VectorSet(self->maxs, 16, 16, 16);
	self->movetype = MOVETYPE_TOSS;
	self->svflags |= SVF_DEADMONSTER;
	self->nextthink = 0;
	gi.linkentity(self);
}

mframe_t chick_frames_death2[] = {
	{ai_move, -6, NULL},
	{ai_move, 0, NULL},
	{ai_move, -1, NULL},
	{ai_move, -5, NULL},
	{ai_move, 0, NULL},
	{ai_move, -1, NULL},
	{ai_move, -2, NULL},
	{ai_move, 1, NULL},
	{ai_move, 10, NULL},
	{ai_move, 2, NULL},
	{ai_move, 3, NULL},
	{ai_move, 1, NULL},
	{ai_move, 2, NULL},
	{ai_move, 0, NULL},
	{ai_move, 3, NULL},
	{ai_move, 3, NULL},
	{ai_move, 1, NULL},
	{ai_move, -3, NULL},
	{ai_move, -5, NULL},
	{ai_move, 4, NULL},
	{ai_move, 15, NULL},
	{ai_move, 14, NULL},
	{ai_move, 1, NULL}
};

mmove_t chick_move_death2 = {
	FRAME_death201,
   	FRAME_death223,
   	chick_frames_death2,
   	chick_dead
};

mframe_t chick_frames_death1[] = {
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, -7, NULL},
	{ai_move, 4, NULL},
	{ai_move, 11, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL}
};

mmove_t chick_move_death1 = {
	FRAME_death101,
   	FRAME_death112,
   	chick_frames_death1,
   	chick_dead
};

void
chick_die(edict_t *self, edict_t *inflictor /* unused */,
		edict_t *attacker /* unused */, int damage,
		vec3_t point /*unused */)
{
	int n;

  	if (!self)
	{
		return;
	}

	/* check for gib */
	if (self->health <= self->gib_health)
	{
		gi.sound(self, CHAN_VOICE, gi.soundindex("misc/udeath.wav"),
			   	1, ATTN_NORM, 0);

		for (n = 0; n < 2; n++)
		{
			ThrowGib(self, "models/objects/gibs/bone/tris.md2",
					damage, GIB_ORGANIC);
		}

		for (n = 0; n < 4; n++)
		{
			ThrowGib(self, "models/objects/gibs/sm_meat/tris.md2",
					damage, GIB_ORGANIC);
		}

		ThrowHead(self, "models/objects/gibs/head2/tris.md2",
				damage, GIB_ORGANIC);
		self->deadflag = DEAD_DEAD;
		return;
	}

	if (self->deadflag == DEAD_DEAD)
	{
		return;
	}

	/* regular death */
	self->deadflag = DEAD_DEAD;
	self->takedamage = DAMAGE_YES;

	n = rand() % 2;

	if (n == 0)
	{
		self->monsterinfo.currentmove = &chick_move_death1;
		gi.sound(self, CHAN_VOICE, sound_death1, 1, ATTN_NORM, 0);
	}
	else
	{
		self->monsterinfo.currentmove = &chick_move_death2;
		gi.sound(self, CHAN_VOICE, sound_death2, 1, ATTN_NORM, 0);
	}
}

void
chick_duck_down(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	if (self->monsterinfo.aiflags & AI_DUCKED)
	{
		return;
	}

	self->monsterinfo.aiflags |= AI_DUCKED;
	self->maxs[2] -= 32;
	self->takedamage = DAMAGE_YES;
	self->monsterinfo.pausetime = level.time + 1;
	gi.linkentity(self);
}

void
chick_duck_hold(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	if (level.time >= self->monsterinfo.pausetime)
	{
		self->monsterinfo.aiflags &= ~AI_HOLD_FRAME;
	}
	else
	{
		self->monsterinfo.aiflags |= AI_HOLD_FRAME;
	}
}

void
chick_duck_up(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	self->monsterinfo.aiflags &= ~AI_DUCKED;
	self->maxs[2] += 32;
	self->takedamage = DAMAGE_AIM;
	gi.linkentity(self);
}

mframe_t chick_frames_duck[] = {
	{ai_move, 0, chick_duck_down},
	{ai_move, 1, NULL},
	{ai_move, 4, chick_duck_hold},
	{ai_move, -4, NULL},
	{ai_move, -5, chick_duck_up},
	{ai_move, 3, NULL},
	{ai_move, 1, NULL}
};

mmove_t chick_move_duck = {
	FRAME_duck01,
   	FRAME_duck07,
   	chick_frames_duck,
   	chick_run
};

void
chick_dodge(edict_t *self, edict_t *attacker, float eta)
{
	if (!self || !attacker)
	{
		return;
	}

	if (random() > 0.25)
	{
		return;
	}

	if (!self->enemy)
	{
		self->enemy = attacker;
		FoundTarget(self);
	}

	self->monsterinfo.currentmove = &chick_move_duck;
}

void
ChickSlash(edict_t *self)
{
	vec3_t aim;

  	if (!self)
	{
		return;
	}

	VectorSet(aim, MELEE_DISTANCE, self->mins[0], 10);
	gi.sound(self, CHAN_WEAPON, sound_melee_swing, 1, ATTN_NORM, 0);
	fire_hit(self, aim, (10 + (rand() % 6)), 100);
}

void
ChickRocket(edict_t *self)
{
	vec3_t forward, right;
	vec3_t start;
	vec3_t dir;
	vec3_t vec;

  	if (!self)
	{
		return;
	}

	AngleVectors(self->s.angles, forward, right, NULL);
	G_ProjectSource(self->s.origin, monster_flash_offset[MZ2_CHICK_ROCKET_1],
			forward, right, start);

	VectorCopy(self->enemy->s.origin, vec);
	vec[2] += self->enemy->viewheight;
	VectorSubtract(vec, start, dir);
	VectorNormalize(dir);

	if (!strcmp(self->classname, "monster_chick_heat"))
	{
		monster_fire_heat(self, start, dir, 50, 500, MZ2_CHICK_ROCKET_1);
	}
	else
	{
		monster_fire_rocket(self, start, dir, 50, 500, MZ2_CHICK_ROCKET_1);
	}
}

void
Chick_PreAttack1(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	gi.sound(self, CHAN_VOICE, sound_missile_prelaunch, 1, ATTN_NORM, 0);
}

void
ChickReload(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	gi.sound(self, CHAN_VOICE, sound_missile_reload, 1, ATTN_NORM, 0);
}

mframe_t chick_frames_start_attack1[] = {
	{ai_charge, 0, Chick_PreAttack1},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 4, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, -3, NULL},
	{ai_charge, 3, NULL},
	{ai_charge, 5, NULL},
	{ai_charge, 7, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, chick_attack1}
};

mmove_t chick_move_start_attack1 = {
	FRAME_attak101,
   	FRAME_attak113,
   	chick_frames_start_attack1,
   	NULL
};

mframe_t chick_frames_attack1[] = {
	{ai_charge, 19, ChickRocket},
	{ai_charge, -6, NULL},
	{ai_charge, -5, NULL},
	{ai_charge, -2, NULL},
	{ai_charge, -7, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 1, NULL},
	{ai_charge, 10, ChickReload},
	{ai_charge, 4, NULL},
	{ai_charge, 5, NULL},
	{ai_charge, 6, NULL},
	{ai_charge, 6, NULL},
	{ai_charge, 4, NULL},
	{ai_charge, 3, chick_rerocket}
};

mmove_t chick_move_attack1 = {
	FRAME_attak114,
   	FRAME_attak127,
   	chick_frames_attack1,
   	NULL
};

mframe_t chick_frames_end_attack1[] = {
	{ai_charge, -3, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, -6, NULL},
	{ai_charge, -4, NULL},
	{ai_charge, -2, NULL}
};

mmove_t chick_move_end_attack1 = {
	FRAME_attak128,
   	FRAME_attak132,
   	chick_frames_end_attack1,
   	chick_run
};

void
chick_rerocket(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	if (self->enemy->health > 0)
	{
		if (range(self, self->enemy) > RANGE_MELEE)
		{
			if (visible(self, self->enemy))
			{
				if (random() <= 0.6)
				{
					self->monsterinfo.currentmove = &chick_move_attack1;
					return;
				}
			}
		}
	}

	self->monsterinfo.currentmove = &chick_move_end_attack1;
}

void
chick_attack1(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	self->monsterinfo.currentmove = &chick_move_attack1;
}

mframe_t chick_frames_slash[] = {
	{ai_charge, 1, NULL},
	{ai_charge, 7, ChickSlash},
	{ai_charge, -7, NULL},
	{ai_charge, 1, NULL},
	{ai_charge, -1, NULL},
	{ai_charge, 1, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 1, NULL},
	{ai_charge, -2, chick_reslash}
};

mmove_t chick_move_slash = {
	FRAME_attak204,
   	FRAME_attak212,
   	chick_frames_slash,
   	NULL
};

mframe_t chick_frames_end_slash[] = {
	{ai_charge, -6, NULL},
	{ai_charge, -1, NULL},
	{ai_charge, -6, NULL},
	{ai_charge, 0, NULL}
};

mmove_t chick_move_end_slash = {
	FRAME_attak213,
   	FRAME_attak216,
   	chick_frames_end_slash,
   	chick_run
};

void
chick_reslash(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	if (self->enemy->health > 0)
	{
		if (range(self, self->enemy) == RANGE_MELEE)
		{
			if (random() <= 0.9)
			{
				self->monsterinfo.currentmove = &chick_move_slash;
				return;
			}
			else
			{
				self->monsterinfo.currentmove = &chick_move_end_slash;
				return;
			}
		}
	}

	self->monsterinfo.currentmove = &chick_move_end_slash;
}

void
chick_slash(edict_t *self)
{
	self->monsterinfo.currentmove = &chick_move_slash;
}

mframe_t chick_frames_start_slash[] = {
	{ai_charge, 1, NULL},
	{ai_charge, 8, NULL},
	{ai_charge, 3, NULL}
};

mmove_t chick_move_start_slash = {
	FRAME_attak201,
   	FRAME_attak203,
   	chick_frames_start_slash,
   	chick_slash
};

void
chick_melee(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	self->monsterinfo.currentmove = &chick_move_start_slash;
}

void
chick_attack(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	self->monsterinfo.currentmove = &chick_move_start_attack1;
}

void
chick_sight(edict_t *self, edict_t *other /* unused */)
{
  	if (!self)
	{
		return;
	}

	gi.sound(self, CHAN_VOICE, sound_sight, 1, ATTN_NORM, 0);
}

/*
 * QUAKED monster_chick (1 .5 0) (-16 -16 -24) (16 16 32) Ambush Trigger_Spawn Sight
 */
void
SP_monster_chick(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	if (deathmatch->value)
	{
		G_FreeEdict(self);
		return;
	}

	sound_missile_prelaunch = gi.soundindex("chick/chkatck1.wav");
	sound_missile_launch = gi.soundindex("chick/chkatck2.wav");
	sound_melee_swing = gi.soundindex("chick/chkatck3.wav");
	sound_melee_hit = gi.soundindex("chick/chkatck4.wav");
	sound_missile_reload = gi.soundindex("chick/chkatck5.wav");
	sound_death1 = gi.soundindex("chick/chkdeth1.wav");
	sound_death2 = gi.soundindex("chick/chkdeth2.wav");
	sound_fall_down = gi.soundindex("chick/chkfall1.wav");
	sound_idle1 = gi.soundindex("chick/chkidle1.wav");
	sound_idle2 = gi.soundindex("chick/chkidle2.wav");
	sound_pain1 = gi.soundindex("chick/chkpain1.wav");
	sound_pain2 = gi.soundindex("chick/chkpain2.wav");
	sound_pain3 = gi.soundindex("chick/chkpain3.wav");
	sound_sight = gi.soundindex("chick/chksght1.wav");
	sound_search = gi.soundindex("chick/chksrch1.wav");

	self->movetype = MOVETYPE_STEP;
	self->solid = SOLID_BBOX;
	self->s.modelindex = gi.modelindex("models/monsters/bitch/tris.md2");
	VectorSet(self->mins, -16, -16, 0);
	VectorSet(self->maxs, 16, 16, 56);

	self->health = 175;
	self->gib_health = -70;
	self->mass = 200;

	self->pain = chick_pain;
	self->die = chick_die;

	self->monsterinfo.stand = chick_stand;
	self->monsterinfo.walk = chick_walk;
	self->monsterinfo.run = chick_run;
	self->monsterinfo.dodge = chick_dodge;
	self->monsterinfo.attack = chick_attack;
	self->monsterinfo.melee = chick_melee;
	self->monsterinfo.sight = chick_sight;

	gi.linkentity(self);

	self->monsterinfo.currentmove = &chick_move_stand;
	self->monsterinfo.scale = MODEL_SCALE;

	walkmonster_start(self);
}

/*
 * QUAKED monster_chick_heat (1 .5 0) (-16 -16 -24) (16 16 32) Ambush Trigger_Spawn Sight
 */
void
SP_monster_chick_heat(edict_t *self)
{
  	if (!self)
	{
		return;
	}

	SP_monster_chick(self);

	/* have to check this since the regular spawn function can free the entity */
	if (self->inuse)
	{
		self->s.skinnum = 3;
	}
}