/***
*
*	Copyright (c) 2016-2019 Marco 'eukara' Hladik. All rights reserved.
*
*	See the file LICENSE attached with the sources for usage details.
*
****/

void Effect_CreateExplosion( vector vPos ) {
#ifdef SSQC
	vPos_z += 48;
	WriteByte( MSG_MULTICAST, SVC_CGAMEPACKET );
	WriteByte( MSG_MULTICAST, EV_EXPLOSION );
	WriteCoord( MSG_MULTICAST, vPos_x ); 
	WriteCoord( MSG_MULTICAST, vPos_y ); 
	WriteCoord( MSG_MULTICAST, vPos_z );
	msg_entity = self;
	multicast( vPos, MULTICAST_PVS );
#else
	sprite eExplosion = spawn(sprite);
	setorigin( eExplosion, vPos );
	setmodel( eExplosion, "sprites/fexplo.spr" );
	sound( eExplosion, CHAN_WEAPON, sprintf( "weapons/explode%d.wav", floor( random() * 3 ) + 3 ), 1, ATTN_NORM );
	
	//eExplosion.think = Effect_CreateExplosion_Animate;
	eExplosion.nextthink = time + 0.05f;
	eExplosion.effects = EF_ADDITIVE;
	eExplosion.drawmask = MASK_ENGINE;
	eExplosion.maxframe = modelframecount( eExplosion.modelindex );
	
	te_explosion( vPos );
#endif
}

void Effect_CreateSpark( vector vPos, vector vAngle ) {
#ifdef SSQC
	WriteByte( MSG_MULTICAST, SVC_CGAMEPACKET );
	WriteByte( MSG_MULTICAST, EV_SPARK );
	WriteCoord( MSG_MULTICAST, vPos_x ); 
	WriteCoord( MSG_MULTICAST, vPos_y ); 
	WriteCoord( MSG_MULTICAST, vPos_z );
	WriteCoord( MSG_MULTICAST, vAngle_x ); 
	WriteCoord( MSG_MULTICAST, vAngle_y ); 
	WriteCoord( MSG_MULTICAST, vAngle_z );
	msg_entity = self;
	multicast( vPos, MULTICAST_PVS );
#else
	pointparticles( PARTICLE_SPARK, vPos, vAngle, 1 );
	pointsound( vPos, sprintf( "buttons/spark%d.wav", floor( random() * 6 ) + 1 ), 1, ATTN_STATIC );
#endif
}

#ifdef CSTRIKE
#ifdef SSQC
void Effect_CreateFlash( entity eTarget ) {
	WriteByte( MSG_MULTICAST, SVC_CGAMEPACKET );
	WriteByte( MSG_MULTICAST, EV_FLASH );
	msg_entity = eTarget;
	multicast( '0 0 0', MULTICAST_ONE );
}
#endif
#endif

#ifdef CSTRIKE
void Effect_CreateSmoke( vector vPos ) {
#ifdef SSQC
	WriteByte( MSG_MULTICAST, SVC_CGAMEPACKET );
	WriteByte( MSG_MULTICAST, EV_SMOKE );
	WriteCoord( MSG_MULTICAST, vPos_x ); 
	WriteCoord( MSG_MULTICAST, vPos_y ); 
	WriteCoord( MSG_MULTICAST, vPos_z );
	msg_entity = self;
	multicast( '0 0 0', MULTICAST_ALL );
#else
	static void Effect_CreateSmoke_Think( void ) {
		// HACK: This should only ever happen when rounds restart!
		// Any way this can go wrong?
		if ( self.skin < getstatf( STAT_GAMETIME ) ) {
			remove( self );
		}
		if ( self.frame <= 0 ) {
			remove( self );
			return;
		} 
	
		pointparticles( PARTICLE_SMOKEGRENADE, self.origin, '0 0 0', 1 );
		self.frame--;
		self.nextthink = time + 0.2f;
		self.skin = getstatf( STAT_GAMETIME );
	}
	
	entity eSmoke = spawn();
	setorigin( eSmoke, vPos );
	eSmoke.think = Effect_CreateSmoke_Think;
	eSmoke.nextthink = time;
	eSmoke.frame = 200;
	eSmoke.skin = getstatf( STAT_GAMETIME );
#endif
}
#endif

void Effect_Impact( int iType, vector vPos, vector vNormal ) {
#ifdef SSQC
	WriteByte( MSG_MULTICAST, SVC_CGAMEPACKET );
	WriteByte( MSG_MULTICAST, EV_IMPACT );
	WriteByte( MSG_MULTICAST, (float)iType );
	WriteCoord( MSG_MULTICAST, vPos_x ); 
	WriteCoord( MSG_MULTICAST, vPos_y ); 
	WriteCoord( MSG_MULTICAST, vPos_z );
	WriteCoord( MSG_MULTICAST, vNormal_x ); 
	WriteCoord( MSG_MULTICAST, vNormal_y ); 
	WriteCoord( MSG_MULTICAST, vNormal_z );
	msg_entity = self;
	multicast( vPos, MULTICAST_PVS );
#else
	switch ( iType ) {
		case IMPACT_MELEE:
			/*pointparticles( DECAL_SHOT, vPos, vNormal, 1 );
			pointparticles( PARTICLE_PIECES_BLACK, vPos, vNormal, 1 );*/
			pointsound( vPos, "weapons/knife_hitwall1.wav", 1, ATTN_STATIC );
			break;
		case IMPACT_EXPLOSION:
			break;
		case IMPACT_GLASS:
			pointparticles( DECAL_GLASS, vPos, vNormal, 1 );
			pointparticles( PARTICLE_PIECES_BLACK, vPos, vNormal, 1 );
			break;
		case IMPACT_WOOD:
			pointparticles( DECAL_SHOT, vPos, vNormal, 1 );
			pointparticles( PARTICLE_SPARK, vPos, vNormal, 1 );
			pointparticles( PARTICLE_PIECES_BLACK, vPos, vNormal, 1 );
			pointparticles( PARTICLE_SMOKE_BROWN, vPos, vNormal, 1 );
			break;
		case IMPACT_METAL:
			pointparticles( DECAL_SHOT, vPos, vNormal, 1 );
			pointparticles( PARTICLE_SPARK, vPos, vNormal, 1 );
			pointparticles( PARTICLE_SPARK, vPos, vNormal, 1 );
			pointparticles( PARTICLE_PIECES_BLACK, vPos, vNormal, 1 );
			break;
		case IMPACT_FLESH:
			pointparticles( PARTICLE_BLOOD, vPos, vNormal, 1 );
			break;
		case IMPACT_DEFAULT:
			pointparticles( DECAL_SHOT, vPos, vNormal, 1 );
			pointparticles( PARTICLE_SPARK, vPos, vNormal, 1 );
			pointparticles( PARTICLE_PIECES_BLACK, vPos, vNormal, 1 );
			pointparticles( PARTICLE_SMOKE_GREY, vPos, vNormal, 1 );
			break;
		default:
	}
	
	switch ( iType ) {
		case IMPACT_METAL:
			pointsound( vPos, sprintf( "weapons/ric_metal-%d.wav", floor( ( random() * 2 ) + 1 ) ), 1, ATTN_STATIC );
			break;
		case IMPACT_FLESH:
			break;
		default:
			pointsound( vPos, sprintf( "weapons/ric%d.wav", floor( ( random() * 5 ) + 1 ) ), 1, ATTN_STATIC );
			break;
	}
	
#endif
}

void Effect_BreakModel( vector vMins, vector vMaxs, vector vVel, float fStyle ) {
#ifdef SSQC
	WriteByte( MSG_MULTICAST, SVC_CGAMEPACKET );
	WriteByte( MSG_MULTICAST, EV_MODELGIB );
	WriteCoord( MSG_MULTICAST, vMins_x); 
	WriteCoord( MSG_MULTICAST, vMins_y); 
	WriteCoord( MSG_MULTICAST, vMins_z);
	WriteCoord( MSG_MULTICAST, vMaxs_x); 
	WriteCoord( MSG_MULTICAST, vMaxs_y); 
	WriteCoord( MSG_MULTICAST, vMaxs_z);
	WriteByte( MSG_MULTICAST, fStyle );

	msg_entity = self;
	
	vector vWorldPos;
	vWorldPos_x = vMins_x + ( 0.5 * ( vMaxs_x - vMins_x ) );	
	vWorldPos_y = vMins_y + ( 0.5 * ( vMaxs_y - vMins_y ) );	
	vWorldPos_z = vMins_z + ( 0.5 * ( vMaxs_z - vMins_z ) );
	multicast( vWorldPos, MULTICAST_PVS );
#else
	static void Effect_BreakModel_Remove( void ) { remove( self ) ; }
	
	float fModelCount;
	vector vPos;
	string sModel = "";
	float fCount = 20;
	
	switch ( fStyle ) {
		case MATERIAL_GLASS:
		case MATERIAL_GLASS_UNBREAKABLE:
			sModel = "models/glassgibs.mdl";
			fModelCount = 8;
			break;
		case MATERIAL_WOOD:
			sModel = "models/woodgibs.mdl";
			fModelCount = 3;
			break;
		case MATERIAL_METAL:
			sModel = "models/metalplategibs.mdl";
			fModelCount = 13;
			break;
		case MATERIAL_FLESH:
			sModel = "models/fleshgibs.mdl";
			fModelCount = 4;
			break;
		case MATERIAL_TILE:
			sModel = "models/ceilinggibs.mdl";
			fModelCount = 4;
			break;
		case MATERIAL_COMPUTER:
			sModel = "models/computergibs.mdl";
			fModelCount = 15;
			break;
		case MATERIAL_ROCK:
			sModel = "models/rockgibs.mdl";
			fModelCount = 3;
			break;
		default:
		case MATERIAL_CINDER:
			sModel = "models/cindergibs.mdl";
			fModelCount = 9;
			break;
	}
	
	vector vWorldPos;
	vWorldPos_x = vMins_x + ( 0.5 * ( vMaxs_x - vMins_x ) );	
	vWorldPos_y = vMins_y + ( 0.5 * ( vMaxs_y - vMins_y ) );	
	vWorldPos_z = vMins_z + ( 0.5 * ( vMaxs_z - vMins_z ) );
	
	switch ( fStyle ) {
		case MATERIAL_GLASS:
			pointsound( vWorldPos, sprintf( "debris/bustglass%d.wav", random( 1, 4 ) ), 1.0f, ATTN_NORM );
			break;
		case MATERIAL_WOOD:
			pointsound( vWorldPos, sprintf( "debris/bustcrate%d.wav", random( 1, 4 ) ), 1.0f, ATTN_NORM );
			break;
		case MATERIAL_METAL:
		case MATERIAL_COMPUTER:
			pointsound( vWorldPos, sprintf( "debris/bustmetal%d.wav", random( 1, 3 ) ), 1.0f, ATTN_NORM );
			break;
		case MATERIAL_FLESH:
			pointsound( vWorldPos, sprintf( "debris/bustflesh%d.wav", random( 1, 3 ) ), 1.0f, ATTN_NORM );
			break;
		case MATERIAL_CINDER:
		case MATERIAL_ROCK:
			pointsound( vWorldPos, sprintf( "debris/bustconcrete%d.wav", random( 1, 4 ) ), 1.0f, ATTN_NORM );
			break;
		case MATERIAL_TILE:
			pointsound( vWorldPos, "debris/bustceiling.wav", 1.0f, ATTN_NORM );
			break;
	}
	
	while ( fCount > 0 ) {
		entity eGib = spawn();
		eGib.classname = "gib";
		
		vPos_x = vMins_x + ( random() * ( vMaxs_x - vMins_x ) );	
		vPos_y = vMins_y + ( random() * ( vMaxs_y - vMins_y ) );	
		vPos_z = vMins_z + ( random() * ( vMaxs_z - vMins_z ) );	
		
		setorigin( eGib, vPos );
		setmodel( eGib, sModel );
		setcustomskin( eGib, "", sprintf( "geomset 0 %f\n", random( 1, fModelCount + 1 ) ) );
		eGib.movetype = MOVETYPE_BOUNCE;
		eGib.solid = SOLID_NOT;
		
		eGib.avelocity_x = random()*600;
		eGib.avelocity_y = random()*600;
		eGib.avelocity_z = random()*600;
		eGib.think = Effect_BreakModel_Remove;
		eGib.nextthink = time + 10;
		
		if ( ( fStyle == MATERIAL_GLASS ) || ( fStyle == MATERIAL_GLASS_UNBREAKABLE ) ) {
			eGib.effects = EF_ADDITIVE;
			eGib.alpha = 0.3;
		}
		
		fCount--;
		eGib.drawmask = MASK_ENGINE;
	}
#endif
}

#ifdef CSQC
float Effect_Decal( void ) {
	adddecal( self.classname, self.origin, self.mins, self.maxs, self.color, 1.0f );
	addentity( self );
	return PREDRAW_NEXT;
}
#endif