/*
* Copyright(c) 1997-2001 Id Software, Inc.
* Copyright(c) 2002 The Quakeforge Project.
* Copyright(c) 2006 Quetoo.
*
* 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.
*/

/*
 
SUPERTANK
 
*/

#include "g_local.h"
#include "m_supertank.h"

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

static int sound_pain1;
static int sound_pain2;
static int sound_pain3;
static int sound_death;
static int sound_search1;
static int sound_search2;

static	int tread_sound;

void BossExplode(edict_t *self);

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

void supertank_search(edict_t *self){
	if(random() < 0.5)
		gi.sound(self, CHAN_VOICE, sound_search1, 1, ATTN_NORM, 0);
	else
		gi.sound(self, CHAN_VOICE, sound_search2, 1, ATTN_NORM, 0);
}


void supertank_dead(edict_t *self);
void supertankRocket(edict_t *self);
void supertankMachineGun(edict_t *self);
void supertank_reattack1(edict_t *self);


// stand

mframe_t supertank_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},
		{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 supertank_move_stand = {FRAME_stand_1, FRAME_stand_60, supertank_frames_stand, NULL};

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


mframe_t supertank_frames_run [] =
	{
		{ai_run, 12, TreadSound},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL},
		{ai_run, 12, NULL}
	};
mmove_t supertank_move_run = {FRAME_forwrd_1, FRAME_forwrd_18, supertank_frames_run, NULL};

// walk


mframe_t supertank_frames_forward [] =
	{
		{ai_walk, 4, TreadSound},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL}
	};
mmove_t supertank_move_forward = {FRAME_forwrd_1, FRAME_forwrd_18, supertank_frames_forward, NULL};

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

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

void supertank_run(edict_t *self){
	if(self->monsterinfo.aiflags & AI_STAND_GROUND)
		self->monsterinfo.currentmove = &supertank_move_stand;
	else
		self->monsterinfo.currentmove = &supertank_move_run;
}

mframe_t supertank_frames_turn_right [] =
	{
		{ai_move, 0, TreadSound},
		{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},
		{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 supertank_move_turn_right = {FRAME_right_1, FRAME_right_18, supertank_frames_turn_right, supertank_run};

mframe_t supertank_frames_turn_left [] =
	{
		{ai_move, 0, TreadSound},
		{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},
		{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 supertank_move_turn_left = {FRAME_left_1, FRAME_left_18, supertank_frames_turn_left, supertank_run};


mframe_t supertank_frames_pain3 [] =
	{
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL}
	};
mmove_t supertank_move_pain3 = {FRAME_pain3_9, FRAME_pain3_12, supertank_frames_pain3, supertank_run};

mframe_t supertank_frames_pain2 [] =
	{
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL}
	};
mmove_t supertank_move_pain2 = {FRAME_pain2_5, FRAME_pain2_8, supertank_frames_pain2, supertank_run};

mframe_t supertank_frames_pain1 [] =
	{
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL}
	};
mmove_t supertank_move_pain1 = {FRAME_pain1_1, FRAME_pain1_4, supertank_frames_pain1, supertank_run};

mframe_t supertank_frames_death1 [] =
	{
		{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},
		{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},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, BossExplode}
	};
mmove_t supertank_move_death = {FRAME_death_1, FRAME_death_24, supertank_frames_death1, supertank_dead};

mframe_t supertank_frames_backward[] =
	{
		{ai_walk, 0, TreadSound},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL},
		{ai_walk, 0, NULL}
	};
mmove_t supertank_move_backward = {FRAME_backwd_1, FRAME_backwd_18, supertank_frames_backward, NULL};

mframe_t supertank_frames_attack4[] =
	{
		{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 supertank_move_attack4 = {FRAME_attak4_1, FRAME_attak4_6, supertank_frames_attack4, supertank_run};

mframe_t supertank_frames_attack3[] =
	{
		{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},
		{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},
		{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 supertank_move_attack3 = {FRAME_attak3_1, FRAME_attak3_27, supertank_frames_attack3, supertank_run};

mframe_t supertank_frames_attack2[] =
	{
		{ai_charge, 0, NULL},
		{ai_charge, 0, NULL},
		{ai_charge, 0, NULL},
		{ai_charge, 0, NULL},
		{ai_charge, 0, NULL},
		{ai_charge, 0, NULL},
		{ai_charge, 0, NULL},
		{ai_charge, 0, supertankRocket},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, supertankRocket},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, supertankRocket},
		{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},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL}
	};
mmove_t supertank_move_attack2 = {FRAME_attak2_1, FRAME_attak2_27, supertank_frames_attack2, supertank_run};

mframe_t supertank_frames_attack1[] =
	{
		{ai_charge, 0, supertankMachineGun},
		{ai_charge, 0, supertankMachineGun},
		{ai_charge, 0, supertankMachineGun},
		{ai_charge, 0, supertankMachineGun},
		{ai_charge, 0, supertankMachineGun},
		{ai_charge, 0, supertankMachineGun},
        
	};
mmove_t supertank_move_attack1 = {FRAME_attak1_1, FRAME_attak1_6, supertank_frames_attack1, supertank_reattack1};

mframe_t supertank_frames_end_attack1[] =
	{
		{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},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL}
	};
mmove_t supertank_move_end_attack1 = {FRAME_attak1_7, FRAME_attak1_20, supertank_frames_end_attack1, supertank_run};


void supertank_reattack1(edict_t *self){
	if(visible(self, self->enemy))
		if(random() < 0.9)
			self->monsterinfo.currentmove = &supertank_move_attack1;
		else
			self->monsterinfo.currentmove = &supertank_move_end_attack1;
	else
		self->monsterinfo.currentmove = &supertank_move_end_attack1;
}

void supertank_pain(edict_t *self, edict_t *other, float kick, int damage){

	if(self->health <(self->max_health / 2))
		self->s.skinnum = 1;
		
	if(level.time < self->pain_debounce_time)
		return;
		
	// Lessen the chance of him going into his pain frames
	if(damage <= 25)
		if(random() < 0.2)
			return;
			
	// Don't go into pain if he's firing his rockets
	if(skill->value >= 2)
		if((self->s.frame >= FRAME_attak2_1) &&(self->s.frame <= FRAME_attak2_14))
			return;
			
	self->pain_debounce_time = level.time + 3;
	
	if(skill->value == 3)
		return;  // no pain anims in nightmare
		
	if(damage <= 10){
		gi.sound(self, CHAN_VOICE, sound_pain1, 1, ATTN_NORM, 0);
		self->monsterinfo.currentmove = &supertank_move_pain1;
	} else if(damage <= 25){
		gi.sound(self, CHAN_VOICE, sound_pain3, 1, ATTN_NORM, 0);
		self->monsterinfo.currentmove = &supertank_move_pain2;
	} else {
		gi.sound(self, CHAN_VOICE, sound_pain2, 1, ATTN_NORM, 0);
		self->monsterinfo.currentmove = &supertank_move_pain3;
	}
}


void supertankRocket(edict_t *self){
	vec3_t forward, right;
	vec3_t start;
	vec3_t dir;
	vec3_t vec;
	int flash_number;
	
	if(self->s.frame == FRAME_attak2_8)
		flash_number = MZ2_SUPERTANK_ROCKET_1;
	else if(self->s.frame == FRAME_attak2_11)
		flash_number = MZ2_SUPERTANK_ROCKET_2;
	else //(self->s.frame == FRAME_attak2_14)
		flash_number = MZ2_SUPERTANK_ROCKET_3;
		
	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, vec);
	vec[2] += self->enemy->viewheight;
	VectorSubtract(vec, start, dir);
	VectorNormalize(dir);
	
	monster_fire_rocket(self, start, dir, 50, 500, flash_number);
}

void supertankMachineGun(edict_t *self){
	vec3_t dir;
	vec3_t vec;
	vec3_t start;
	vec3_t forward, right;
	int flash_number;
	
	flash_number = MZ2_SUPERTANK_MACHINEGUN_1 +(self->s.frame - FRAME_attak1_1);
	
	//FIXME!!!
	dir[0] = 0;
	dir[1] = self->s.angles[1];
	dir[2] = 0;
	
	AngleVectors(dir, forward, right, NULL);
	G_ProjectSource(self->s.origin, monster_flash_offset[flash_number], forward, right, start);
	
	if(self->enemy){
		VectorCopy(self->enemy->s.origin, vec);
		VectorMA(vec, 0, self->enemy->velocity, vec);
		vec[2] += self->enemy->viewheight;
		VectorSubtract(vec, start, forward);
		VectorNormalize(forward);
	}
	
	monster_fire_bullet(self, start, forward, 6, 4, DEFAULT_BULLET_HSPREAD, DEFAULT_BULLET_VSPREAD, flash_number);
}


void supertank_attack(edict_t *self){
	vec3_t vec;
	float range;
	//float r;
	
	VectorSubtract(self->enemy->s.origin, self->s.origin, vec);
	range = VectorLength(vec);
	
	//r = random();
	
	// Attack 1 == Chaingun
	// Attack 2 == Rocket Launcher
	
	if(range <= 160){
		self->monsterinfo.currentmove = &supertank_move_attack1;
	} else {  // fire rockets more often at distance
		if(random() < 0.3)
			self->monsterinfo.currentmove = &supertank_move_attack1;
		else
			self->monsterinfo.currentmove = &supertank_move_attack2;
	}
}


// death

void supertank_dead(edict_t *self){
	VectorSet(self->mins, -60, -60, 0);
	VectorSet(self->maxs, 60, 60, 72);
	self->movetype = MOVETYPE_TOSS;
	self->svflags |= SVF_DEADMONSTER;
	self->nextthink = 0;
	gi.linkentity(self);
}


void BossExplode(edict_t *self){
	vec3_t org;
	int n;
	
	self->think = BossExplode;
	VectorCopy(self->s.origin, org);
	org[2] += 24 +(rand() & 15);
	switch(self->count++){
		case 0:
			org[0] -= 24;
			org[1] -= 24;
			break;
		case 1:
			org[0] += 24;
			org[1] += 24;
			break;
		case 2:
			org[0] += 24;
			org[1] -= 24;
			break;
		case 3:
			org[0] -= 24;
			org[1] += 24;
			break;
		case 4:
			org[0] -= 48;
			org[1] -= 48;
			break;
		case 5:
			org[0] += 48;
			org[1] += 48;
			break;
		case 6:
			org[0] -= 48;
			org[1] += 48;
			break;
		case 7:
			org[0] += 48;
			org[1] -= 48;
			break;
		case 8:
			self->s.sound = 0;
			for(n = 0; n < 4; n++)
				ThrowGib(self, "models/objects/gibs/sm_meat/tris.md2", 500, GIB_ORGANIC);
			for(n = 0; n < 8; n++)
				ThrowGib(self, "models/objects/gibs/sm_metal/tris.md2", 500, GIB_METALLIC);
			ThrowGib(self, "models/objects/gibs/chest/tris.md2", 500, GIB_ORGANIC);
			ThrowHead(self, "models/objects/gibs/gear/tris.md2", 500, GIB_METALLIC);
			self->deadflag = DEAD_DEAD;
			return;
	}
	
	gi.WriteByte(svc_temp_entity);
	gi.WriteByte(TE_EXPLOSION1);
	gi.WritePosition(org);
	gi.multicast(self->s.origin, MULTICAST_PVS);
	
	self->nextthink = level.time + 0.1;
}


void supertank_die(edict_t *self, edict_t *inflictor, edict_t *attacker, int damage, vec3_t point){
	gi.sound(self, CHAN_VOICE, sound_death, 1, ATTN_NORM, 0);
	self->deadflag = DEAD_DEAD;
	self->takedamage = DAMAGE_NO;
	self->count = 0;
	self->monsterinfo.currentmove = &supertank_move_death;
}

// monster_supertank

/*QUAKED monster_supertank(1 .5 0)(-64 -64 0)(64 64 72) Ambush Trigger_Spawn Sight
*/
void SP_monster_supertank(edict_t *self){
	if(deathmatch->value){
		G_FreeEdict(self);
		return;
	}
	
	sound_pain1 = gi.soundindex("bosstank/btkpain1.wav");
	sound_pain2 = gi.soundindex("bosstank/btkpain2.wav");
	sound_pain3 = gi.soundindex("bosstank/btkpain3.wav");
	sound_death = gi.soundindex("bosstank/btkdeth1.wav");
	sound_search1 = gi.soundindex("bosstank/btkunqv1.wav");
	sound_search2 = gi.soundindex("bosstank/btkunqv2.wav");
	
	//	self->s.sound = gi.soundindex("bosstank/btkengn1.wav");
	tread_sound = gi.soundindex("bosstank/btkengn1.wav");
	
	self->movetype = MOVETYPE_STEP;
	self->solid = SOLID_BBOX;
	self->s.modelindex = gi.modelindex("models/monsters/boss1/tris.md2");
	VectorSet(self->mins, -64, -64, 0);
	VectorSet(self->maxs, 64, 64, 112);
	
	self->health = 1500;
	self->gib_health = -500;
	self->mass = 800;
	
	self->pain = supertank_pain;
	self->die = supertank_die;
	self->monsterinfo.stand = supertank_stand;
	self->monsterinfo.walk = supertank_walk;
	self->monsterinfo.run = supertank_run;
	self->monsterinfo.dodge = NULL;
	self->monsterinfo.attack = supertank_attack;
	self->monsterinfo.search = supertank_search;
	self->monsterinfo.melee = NULL;
	self->monsterinfo.sight = NULL;
	
	gi.linkentity(self);
	
	self->monsterinfo.currentmove = &supertank_move_stand;
	self->monsterinfo.scale = MODEL_SCALE;
	
	walkmonster_start(self);
}