/*
* 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.
*/

/*
 
INFANTRY
 
*/

#include "g_local.h"
#include "m_infantry.h"

void InfantryMachineGun(edict_t *self);


static int sound_pain1;
static int sound_pain2;
static int sound_die1;
static int sound_die2;

static int sound_gunshot;
static int sound_weapon_cock;
static int sound_punch_swing;
static int sound_punch_hit;
static int sound_sight;
static int sound_search;
static int sound_idle;


mframe_t infantry_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}
	};
mmove_t infantry_move_stand = {FRAME_stand50, FRAME_stand71, infantry_frames_stand, NULL};

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


mframe_t infantry_frames_fidget [] =
	{
		{ai_stand, 1, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 1, NULL},
		{ai_stand, 3, NULL},
		{ai_stand, 6, NULL},
		{ai_stand, 3, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 1, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 1, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, -1, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 1, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, -2, NULL},
		{ai_stand, 1, NULL},
		{ai_stand, 1, NULL},
		{ai_stand, 1, NULL},
		{ai_stand, -1, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, -1, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, -1, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 1, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, -1, NULL},
		{ai_stand, -1, NULL},
		{ai_stand, 0, NULL},
		{ai_stand, -3, NULL},
		{ai_stand, -2, NULL},
		{ai_stand, -3, NULL},
		{ai_stand, -3, NULL},
		{ai_stand, -2, NULL}
	};
mmove_t infantry_move_fidget = {FRAME_stand01, FRAME_stand49, infantry_frames_fidget, infantry_stand};

void infantry_fidget(edict_t *self){
	self->monsterinfo.currentmove = &infantry_move_fidget;
	gi.sound(self, CHAN_VOICE, sound_idle, 1, ATTN_IDLE, 0);
}

mframe_t infantry_frames_walk [] =
	{
		{ai_walk, 5, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 5, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 5, NULL},
		{ai_walk, 6, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 4, NULL},
		{ai_walk, 5, NULL}
	};
mmove_t infantry_move_walk = {FRAME_walk03, FRAME_walk14, infantry_frames_walk, NULL};

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

mframe_t infantry_frames_run [] =
	{
		{ai_run, 10, NULL},
		{ai_run, 20, NULL},
		{ai_run, 5, NULL},
		{ai_run, 7, NULL},
		{ai_run, 30, NULL},
		{ai_run, 35, NULL},
		{ai_run, 2, NULL},
		{ai_run, 6, NULL}
	};
mmove_t infantry_move_run = {FRAME_run01, FRAME_run08, infantry_frames_run, NULL};

void infantry_run(edict_t *self){
	if(self->monsterinfo.aiflags & AI_STAND_GROUND)
		self->monsterinfo.currentmove = &infantry_move_stand;
	else
		self->monsterinfo.currentmove = &infantry_move_run;
}


mframe_t infantry_frames_pain1 [] =
	{
		{ai_move, -3, NULL},
		{ai_move, -2, NULL},
		{ai_move, -1, NULL},
		{ai_move, -2, NULL},
		{ai_move, -1, NULL},
		{ai_move, 1, NULL},
		{ai_move, -1, NULL},
		{ai_move, 1, NULL},
		{ai_move, 6, NULL},
		{ai_move, 2, NULL}
	};
mmove_t infantry_move_pain1 = {FRAME_pain101, FRAME_pain110, infantry_frames_pain1, infantry_run};

mframe_t infantry_frames_pain2 [] =
	{
		{ai_move, -3, NULL},
		{ai_move, -3, NULL},
		{ai_move, 0, NULL},
		{ai_move, -1, NULL},
		{ai_move, -2, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 2, NULL},
		{ai_move, 5, NULL},
		{ai_move, 2, NULL}
	};
mmove_t infantry_move_pain2 = {FRAME_pain201, FRAME_pain210, infantry_frames_pain2, infantry_run};

void infantry_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() % 2;
	if(n == 0){
		self->monsterinfo.currentmove = &infantry_move_pain1;
		gi.sound(self, CHAN_VOICE, sound_pain1, 1, ATTN_NORM, 0);
	} else {
		self->monsterinfo.currentmove = &infantry_move_pain2;
		gi.sound(self, CHAN_VOICE, sound_pain2, 1, ATTN_NORM, 0);
	}
}


vec3_t aimangles[] =
	{
		{0.0, 5.0, 0.0},
		{10.0, 15.0, 0.0},
		{20.0, 25.0, 0.0},
		{25.0, 35.0, 0.0},
		{30.0, 40.0, 0.0},
		{30.0, 45.0, 0.0},
		{25.0, 50.0, 0.0},
		{20.0, 40.0, 0.0},
		{15.0, 35.0, 0.0},
		{40.0, 35.0, 0.0},
		{70.0, 35.0, 0.0},
		{90.0, 35.0, 0.0}
	};
    
void InfantryMachineGun(edict_t *self){
	vec3_t start, target;
	vec3_t forward, right;
	vec3_t vec;
	int flash_number;
	
	if(self->s.frame == FRAME_attak111){
		flash_number = MZ2_INFANTRY_MACHINEGUN_1;
		AngleVectors(self->s.angles, forward, right, NULL);
		G_ProjectSource(self->s.origin, monster_flash_offset[flash_number], forward, right, start);
		
		if(self->enemy){
			VectorMA(self->enemy->s.origin, -0.2, self->enemy->velocity, target);
			target[2] += self->enemy->viewheight;
			VectorSubtract(target, start, forward);
			VectorNormalize(forward);
		} else {
			AngleVectors(self->s.angles, forward, right, NULL);
		}
	} else {
		flash_number = MZ2_INFANTRY_MACHINEGUN_2 +(self->s.frame - FRAME_death211);
		
		AngleVectors(self->s.angles, forward, right, NULL);
		G_ProjectSource(self->s.origin, monster_flash_offset[flash_number], forward, right, start);
		
		VectorSubtract(self->s.angles, aimangles[flash_number - MZ2_INFANTRY_MACHINEGUN_2], vec);
		AngleVectors(vec, forward, NULL, NULL);
	}
	
	monster_fire_bullet(self, start, forward, 3, 4, DEFAULT_BULLET_HSPREAD, DEFAULT_BULLET_VSPREAD, flash_number);
}

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

void infantry_dead(edict_t *self){
	VectorSet(self->mins, -16, -16, -24);
	VectorSet(self->maxs, 16, 16, -8);
	self->movetype = MOVETYPE_TOSS;
	self->svflags |= SVF_DEADMONSTER;
	gi.linkentity(self);
	
	M_FlyCheck(self);
}

mframe_t infantry_frames_death1 [] =
	{
		{ai_move, -4, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, -1, NULL},
		{ai_move, -4, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, -1, NULL},
		{ai_move, 3, NULL},
		{ai_move, 1, NULL},
		{ai_move, 1, NULL},
		{ai_move, -2, NULL},
		{ai_move, 2, NULL},
		{ai_move, 2, NULL},
		{ai_move, 9, NULL},
		{ai_move, 9, NULL},
		{ai_move, 5, NULL},
		{ai_move, -3, NULL},
		{ai_move, -3, NULL}
	};
mmove_t infantry_move_death1 = {FRAME_death101, FRAME_death120, infantry_frames_death1, infantry_dead};

// Off with his head
mframe_t infantry_frames_death2 [] =
	{
		{ai_move, 0, NULL},
		{ai_move, 1, NULL},
		{ai_move, 5, NULL},
		{ai_move, -1, NULL},
		{ai_move, 0, NULL},
		{ai_move, 1, NULL},
		{ai_move, 1, NULL},
		{ai_move, 4, NULL},
		{ai_move, 3, NULL},
		{ai_move, 0, NULL},
		{ai_move, -2, InfantryMachineGun},
		{ai_move, -2, InfantryMachineGun},
		{ai_move, -3, InfantryMachineGun},
		{ai_move, -1, InfantryMachineGun},
		{ai_move, -2, InfantryMachineGun},
		{ai_move, 0, InfantryMachineGun},
		{ai_move, 2, InfantryMachineGun},
		{ai_move, 2, InfantryMachineGun},
		{ai_move, 3, InfantryMachineGun},
		{ai_move, -10, InfantryMachineGun},
		{ai_move, -7, InfantryMachineGun},
		{ai_move, -8, InfantryMachineGun},
		{ai_move, -6, NULL},
		{ai_move, 4, NULL},
		{ai_move, 0, NULL}
	};
mmove_t infantry_move_death2 = {FRAME_death201, FRAME_death225, infantry_frames_death2, infantry_dead};

mframe_t infantry_frames_death3 [] =
	{
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL},
		{ai_move, -6, NULL},
		{ai_move, -11, NULL},
		{ai_move, -3, NULL},
		{ai_move, -11, NULL},
		{ai_move, 0, NULL},
		{ai_move, 0, NULL}
	};
mmove_t infantry_move_death3 = {FRAME_death301, FRAME_death309, infantry_frames_death3, infantry_dead};


void infantry_die(edict_t *self, edict_t *inflictor, edict_t *attacker, int damage, vec3_t point){
	int n;
	
	// 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() % 3;
	if(n == 0){
		self->monsterinfo.currentmove = &infantry_move_death1;
		gi.sound(self, CHAN_VOICE, sound_die2, 1, ATTN_NORM, 0);
	} else if(n == 1){
		self->monsterinfo.currentmove = &infantry_move_death2;
		gi.sound(self, CHAN_VOICE, sound_die1, 1, ATTN_NORM, 0);
	} else {
		self->monsterinfo.currentmove = &infantry_move_death3;
		gi.sound(self, CHAN_VOICE, sound_die2, 1, ATTN_NORM, 0);
	}
}


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

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

mframe_t infantry_frames_duck [] =
	{
		{ai_move, -2, infantry_duck_down},
		{ai_move, -5, infantry_duck_hold},
		{ai_move, 3, NULL},
		{ai_move, 4, infantry_duck_up},
		{ai_move, 0, NULL}
	};
mmove_t infantry_move_duck = {FRAME_duck01, FRAME_duck05, infantry_frames_duck, infantry_run};

void infantry_dodge(edict_t *self, edict_t *attacker, float eta){
	if(random() > 0.25)
		return;
		
	if(!self->enemy)
		self->enemy = attacker;
		
	self->monsterinfo.currentmove = &infantry_move_duck;
}


void infantry_cock_gun(edict_t *self){
	int n;
	
	gi.sound(self, CHAN_WEAPON, sound_weapon_cock, 1, ATTN_NORM, 0);
	n =(rand() & 15) + 3 + 7;
	self->monsterinfo.pausetime = level.time + n * FRAMETIME;
}

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

mframe_t infantry_frames_attack1 [] =
	{
		{ai_charge, 4, NULL},
		{ai_charge, -1, NULL},
		{ai_charge, -1, NULL},
		{ai_charge, 0, infantry_cock_gun},
		{ai_charge, -1, NULL},
		{ai_charge, 1, NULL},
		{ai_charge, 1, NULL},
		{ai_charge, 2, NULL},
		{ai_charge, -2, NULL},
		{ai_charge, -3, NULL},
		{ai_charge, 1, infantry_fire},
		{ai_charge, 5, NULL},
		{ai_charge, -1, NULL},
		{ai_charge, -2, NULL},
		{ai_charge, -3, NULL}
	};
mmove_t infantry_move_attack1 = {FRAME_attak101, FRAME_attak115, infantry_frames_attack1, infantry_run};


void infantry_swing(edict_t *self){
	gi.sound(self, CHAN_WEAPON, sound_punch_swing, 1, ATTN_NORM, 0);
}

void infantry_smack(edict_t *self){
	vec3_t aim;
	
	VectorSet(aim, MELEE_DISTANCE, 0, 0);
	if(fire_hit(self, aim,(5 +(rand() % 5)), 50))
		gi.sound(self, CHAN_WEAPON, sound_punch_hit, 1, ATTN_NORM, 0);
}

mframe_t infantry_frames_attack2 [] =
	{
		{ai_charge, 3, NULL},
		{ai_charge, 6, NULL},
		{ai_charge, 0, infantry_swing},
		{ai_charge, 8, NULL},
		{ai_charge, 5, NULL},
		{ai_charge, 8, infantry_smack},
		{ai_charge, 6, NULL},
		{ai_charge, 3, NULL},
	};
mmove_t infantry_move_attack2 = {FRAME_attak201, FRAME_attak208, infantry_frames_attack2, infantry_run};

void infantry_attack(edict_t *self){
	if(range(self, self->enemy) == RANGE_MELEE)
		self->monsterinfo.currentmove = &infantry_move_attack2;
	else
		self->monsterinfo.currentmove = &infantry_move_attack1;
}


/*QUAKED monster_infantry(1 .5 0)(-16 -16 -24)(16 16 32) Ambush Trigger_Spawn Sight
*/
void SP_monster_infantry(edict_t *self){
	if(deathmatch->value){
		G_FreeEdict(self);
		return;
	}
	
	sound_pain1 = gi.soundindex("infantry/infpain1.wav");
	sound_pain2 = gi.soundindex("infantry/infpain2.wav");
	sound_die1 = gi.soundindex("infantry/infdeth1.wav");
	sound_die2 = gi.soundindex("infantry/infdeth2.wav");
	
	sound_gunshot = gi.soundindex("infantry/infatck1.wav");
	sound_weapon_cock = gi.soundindex("infantry/infatck3.wav");
	sound_punch_swing = gi.soundindex("infantry/infatck2.wav");
	sound_punch_hit = gi.soundindex("infantry/melee2.wav");
	
	sound_sight = gi.soundindex("infantry/infsght1.wav");
	sound_search = gi.soundindex("infantry/infsrch1.wav");
	sound_idle = gi.soundindex("infantry/infidle1.wav");
	
	
	self->movetype = MOVETYPE_STEP;
	self->solid = SOLID_BBOX;
	self->s.modelindex = gi.modelindex("models/monsters/infantry/tris.md2");
	VectorSet(self->mins, -16, -16, -24);
	VectorSet(self->maxs, 16, 16, 32);
	
	self->health = 100;
	self->gib_health = -40;
	self->mass = 200;
	
	self->pain = infantry_pain;
	self->die = infantry_die;
	
	self->monsterinfo.stand = infantry_stand;
	self->monsterinfo.walk = infantry_walk;
	self->monsterinfo.run = infantry_run;
	self->monsterinfo.dodge = infantry_dodge;
	self->monsterinfo.attack = infantry_attack;
	self->monsterinfo.melee = NULL;
	self->monsterinfo.sight = infantry_sight;
	self->monsterinfo.idle = infantry_fidget;
	
	gi.linkentity(self);
	
	self->monsterinfo.currentmove = &infantry_move_stand;
	self->monsterinfo.scale = MODEL_SCALE;
	
	walkmonster_start(self);
}