/*
 * Copyright (C) 1997-2001 Id Software, Inc.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 *
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59
 * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

/*
 *
 * ============================================================================
 * ==
 *
 * flyer
 *
 * =====
 * ========================================================================
 */

#include "g_local.h"
#include "m_flyer.h"

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

static int	nextmove;	/* Used for start/stop frames */

static int	sound_sight;
static int	sound_idle;
static int	sound_pain1;
static int	sound_pain2;
static int	sound_slash;
static int	sound_sproing;
static int	sound_die;


void		flyer_check_melee(edict_t * self);
void		flyer_loop_melee(edict_t * self);
void		flyer_melee(edict_t * self);
void		flyer_setstart(edict_t * self);
void		flyer_stand(edict_t * self);
void		flyer_nextmove(edict_t * self);


void
flyer_sight(edict_t * self, edict_t * other)
{
	gi.sound(self, CHAN_VOICE, sound_sight, 1, ATTN_NORM, 0);
}

void
flyer_idle(edict_t * self)
{
	gi.sound(self, CHAN_VOICE, sound_idle, 1, ATTN_IDLE, 0);
}

void
flyer_pop_blades(edict_t * self)
{
	gi.sound(self, CHAN_VOICE, sound_sproing, 1, ATTN_NORM, 0);
}


mframe_t	flyer_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, 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		flyer_move_stand = {FRAME_stand01, FRAME_stand45, flyer_frames_stand, NULL};


mframe_t	flyer_frames_walk[] =
{
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL},
	{ai_walk, 5, NULL}
};
mmove_t		flyer_move_walk = {FRAME_stand01, FRAME_stand45, flyer_frames_walk, NULL};

mframe_t	flyer_frames_run[] =
{
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL},
	{ai_run, 10, NULL}
};
mmove_t		flyer_move_run = {FRAME_stand01, FRAME_stand45, flyer_frames_run, NULL};

void
flyer_run(edict_t * self)
{
	if (self->monsterinfo.aiflags & AI_STAND_GROUND)
		self->monsterinfo.currentmove = &flyer_move_stand;
	else
		self->monsterinfo.currentmove = &flyer_move_run;
}

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

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

mframe_t	flyer_frames_start[] =
{
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, flyer_nextmove}
};
mmove_t		flyer_move_start = {FRAME_start01, FRAME_start06, flyer_frames_start, NULL};

mframe_t	flyer_frames_stop[] =
{
	{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, flyer_nextmove}
};
mmove_t		flyer_move_stop = {FRAME_stop01, FRAME_stop07, flyer_frames_stop, NULL};

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

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


mframe_t	flyer_frames_rollright[] =
{
	{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},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL}
};
mmove_t		flyer_move_rollright = {FRAME_rollr01, FRAME_rollr09, flyer_frames_rollright, NULL};

mframe_t	flyer_frames_rollleft[] =
{
	{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},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL}
};
mmove_t		flyer_move_rollleft = {FRAME_rollf01, FRAME_rollf09, flyer_frames_rollleft, NULL};

mframe_t	flyer_frames_pain3[] =
{
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL}
};
mmove_t		flyer_move_pain3 = {FRAME_pain301, FRAME_pain304, flyer_frames_pain3, flyer_run};

mframe_t	flyer_frames_pain2[] =
{
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL}
};
mmove_t		flyer_move_pain2 = {FRAME_pain201, FRAME_pain204, flyer_frames_pain2, flyer_run};

mframe_t	flyer_frames_pain1[] =
{
	{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},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL}
};
mmove_t		flyer_move_pain1 = {FRAME_pain101, FRAME_pain109, flyer_frames_pain1, flyer_run};

mframe_t	flyer_frames_defense[] =
{
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},	/* Hold this frame */
	{ai_move, 0, NULL},
	{ai_move, 0, NULL},
	{ai_move, 0, NULL}
};
mmove_t		flyer_move_defense = {FRAME_defens01, FRAME_defens06, flyer_frames_defense, NULL};

mframe_t	flyer_frames_bankright[] =
{
	{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		flyer_move_bankright = {FRAME_bankr01, FRAME_bankr07, flyer_frames_bankright, NULL};

mframe_t	flyer_frames_bankleft[] =
{
	{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		flyer_move_bankleft = {FRAME_bankl01, FRAME_bankl07, flyer_frames_bankleft, NULL};


void
flyer_fire(edict_t * self, int flash_number)
{
	vec3_t		start;
	vec3_t		forward, right;
	vec3_t		end;
	vec3_t		dir;
	int		effect;

	if ((self->s.frame == FRAME_attak204) || (self->s.frame == FRAME_attak207) || (self->s.frame == FRAME_attak210))
		effect = EF_HYPERBLASTER;
	else
		effect = 0;
	AngleVectors(self->s.angles, forward, right, NULL);
	G_ProjectSource(self->s.origin, monster_flash_offset[flash_number], forward, right, start);

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

	monster_fire_blaster(self, start, dir, 1, 1000, flash_number, effect);
}

void
flyer_fireleft(edict_t * self)
{
	flyer_fire(self, MZ2_FLYER_BLASTER_1);
}

void
flyer_fireright(edict_t * self)
{
	flyer_fire(self, MZ2_FLYER_BLASTER_2);
}


mframe_t	flyer_frames_attack2[] =
{
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, -10, flyer_fireleft},	/* left gun */
	{ai_charge, -10, flyer_fireright},	/* right gun */
	{ai_charge, -10, flyer_fireleft},	/* left gun */
	{ai_charge, -10, flyer_fireright},	/* right gun */
	{ai_charge, -10, flyer_fireleft},	/* left gun */
	{ai_charge, -10, flyer_fireright},	/* right gun */
	{ai_charge, -10, flyer_fireleft},	/* left gun */
	{ai_charge, -10, flyer_fireright},	/* right gun */
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL}
};
mmove_t		flyer_move_attack2 = {FRAME_attak201, FRAME_attak217, flyer_frames_attack2, flyer_run};


void
flyer_slash_left(edict_t * self)
{
	vec3_t		aim;

	VectorSet(aim, MELEE_DISTANCE, self->mins[0], 0);
	fire_hit(self, aim, 5, 0);
	gi.sound(self, CHAN_WEAPON, sound_slash, 1, ATTN_NORM, 0);
}

void
flyer_slash_right(edict_t * self)
{
	vec3_t		aim;

	VectorSet(aim, MELEE_DISTANCE, self->maxs[0], 0);
	fire_hit(self, aim, 5, 0);
	gi.sound(self, CHAN_WEAPON, sound_slash, 1, ATTN_NORM, 0);
}

mframe_t	flyer_frames_start_melee[] =
{
	{ai_charge, 0, flyer_pop_blades},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL}
};
mmove_t		flyer_move_start_melee = {FRAME_attak101, FRAME_attak106, flyer_frames_start_melee, flyer_loop_melee};

mframe_t	flyer_frames_end_melee[] =
{
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL}
};
mmove_t		flyer_move_end_melee = {FRAME_attak119, FRAME_attak121, flyer_frames_end_melee, flyer_run};


mframe_t	flyer_frames_loop_melee[] =
{
	{ai_charge, 0, NULL},	/* Loop Start */
	{ai_charge, 0, NULL},
	{ai_charge, 0, flyer_slash_left},	/* Left Wing Strike */
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, flyer_slash_right},	/* Right Wing Strike */
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL},
	{ai_charge, 0, NULL}	/* Loop Ends */

};
mmove_t		flyer_move_loop_melee = {FRAME_attak107, FRAME_attak118, flyer_frames_loop_melee, flyer_check_melee};

void
flyer_loop_melee(edict_t * self)
{

	/*
	 * if (random() <= 0.5)	self->monsterinfo.currentmove =
	 * &flyer_move_attack1; else
	 */
	self->monsterinfo.currentmove = &flyer_move_loop_melee;
}



void
flyer_attack(edict_t * self)
{

	/*
	 * if (random() <= 0.5)	self->monsterinfo.currentmove =
	 * &flyer_move_attack1; else
	 */
	self->monsterinfo.currentmove = &flyer_move_attack2;
}

void
flyer_setstart(edict_t * self)
{
	nextmove = ACTION_run;
	self->monsterinfo.currentmove = &flyer_move_start;
}

void
flyer_nextmove(edict_t * self)
{
	if (nextmove == ACTION_attack1)
		self->monsterinfo.currentmove = &flyer_move_start_melee;
	else if (nextmove == ACTION_attack2)
		self->monsterinfo.currentmove = &flyer_move_attack2;
	else if (nextmove == ACTION_run)
		self->monsterinfo.currentmove = &flyer_move_run;
}

void
flyer_melee(edict_t * self)
{
	/* flyer.nextmove = ACTION_attack1; */
	/* self->monsterinfo.currentmove = &flyer_move_stop; */
	self->monsterinfo.currentmove = &flyer_move_start_melee;
}

void
flyer_check_melee(edict_t * self)
{
	if (range(self, self->enemy) == RANGE_MELEE)
		if (random() <= 0.8)
			self->monsterinfo.currentmove = &flyer_move_loop_melee;
		else
			self->monsterinfo.currentmove = &flyer_move_end_melee;
	else
		self->monsterinfo.currentmove = &flyer_move_end_melee;
}

void
flyer_pain(edict_t * self, edict_t * other, float kick, int damage)
{
	int		n;

	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;
	if (skill->value == 3)
		return;		/* no pain anims in nightmare */

	n = rand() % 3;
	if (n == 0) {
		gi.sound(self, CHAN_VOICE, sound_pain1, 1, ATTN_NORM, 0);
		self->monsterinfo.currentmove = &flyer_move_pain1;
	} else if (n == 1) {
		gi.sound(self, CHAN_VOICE, sound_pain2, 1, ATTN_NORM, 0);
		self->monsterinfo.currentmove = &flyer_move_pain2;
	} else {
		gi.sound(self, CHAN_VOICE, sound_pain1, 1, ATTN_NORM, 0);
		self->monsterinfo.currentmove = &flyer_move_pain3;
	}
}


void
flyer_die(edict_t * self, edict_t * inflictor, edict_t * attacker, int damage, vec3_t point)
{
	gi.sound(self, CHAN_VOICE, sound_die, 1, ATTN_NORM, 0);
	BecomeExplosion1(self);
}


/*
 * QUAKED monster_flyer (1 .5 0) (-16 -16 -24) (16 16 32) Ambush
 * Trigger_Spawn Sight
 */
void
SP_monster_flyer(edict_t * self)
{
	if (deathmatch->value) {
		G_FreeEdict(self);
		return;
	}
	/* fix a map bug in jail5.bsp */
	if (!Q_stricmp(level.mapname, "jail5") && (self->s.origin[2] == -104)) {
		self->targetname = self->target;
		self->target = NULL;
	}
	sound_sight = gi.soundindex("flyer/flysght1.wav");
	sound_idle = gi.soundindex("flyer/flysrch1.wav");
	sound_pain1 = gi.soundindex("flyer/flypain1.wav");
	sound_pain2 = gi.soundindex("flyer/flypain2.wav");
	sound_slash = gi.soundindex("flyer/flyatck2.wav");
	sound_sproing = gi.soundindex("flyer/flyatck1.wav");
	sound_die = gi.soundindex("flyer/flydeth1.wav");

	gi.soundindex("flyer/flyatck3.wav");

	self->s.modelindex = gi.modelindex("models/monsters/flyer/tris.md2");
	VectorSet(self->mins, -16, -16, -24);
	VectorSet(self->maxs, 16, 16, 32);
	self->movetype = MOVETYPE_STEP;
	self->solid = SOLID_BBOX;

	self->s.sound = gi.soundindex("flyer/flyidle1.wav");

	self->health = 50;
	self->mass = 50;

	self->pain = flyer_pain;
	self->die = flyer_die;

	self->monsterinfo.stand = flyer_stand;
	self->monsterinfo.walk = flyer_walk;
	self->monsterinfo.run = flyer_run;
	self->monsterinfo.attack = flyer_attack;
	self->monsterinfo.melee = flyer_melee;
	self->monsterinfo.sight = flyer_sight;
	self->monsterinfo.idle = flyer_idle;

	gi.linkentity(self);

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

	flymonster_start(self);
}