/***
*
*	Copyright (c) 1996-2002, Valve LLC. All rights reserved.
*	
*	This product contains software technology licensed from Id 
*	Software, Inc. ("Id Technology").  Id Technology (c) 1996 Id Software, Inc. 
*	All Rights Reserved.
*
*   Use, distribution, and modification of this source code and/or resulting
*   object code is restricted to non-commercial enhancements to products from
*   Valve LLC.  All other use, distribution, or modification is prohibited
*   without written permission from Valve LLC.
*
****/

#include "hud.h"
#include "cl_util.h"
#include "const.h"
#include "entity_state.h"
#include "cl_entity.h"
#include "entity_types.h"
#include "usercmd.h"
#include "pm_defs.h"
#include "pm_materials.h"

#include "eventscripts.h"
#include "ev_hldm.h"

#include "r_efx.h"
#include "event_api.h"
#include "event_args.h"
#include "in_defs.h"

#include <string.h>

#include "r_studioint.h"
#include "com_model.h"

extern engine_studio_api_t IEngineStudio;

static int g_tracerCount[32];

extern "C" char PM_FindTextureType( char *name );

void V_PunchAxis( int axis, float punch );
void VectorAngles( const float *forward, float *angles );

extern cvar_t *cl_lw;

extern "C"
{
// HLDM
void EV_FireGlock1( struct event_args_s *args );
void EV_FireGlock2( struct event_args_s *args );
void EV_FireShotGunSingle( struct event_args_s *args );
void EV_FireShotGunDouble( struct event_args_s *args );
void EV_FireMP5( struct event_args_s *args );
void EV_FirePython( struct event_args_s *args );
void EV_FireGauss( struct event_args_s *args );
void EV_SpinGauss( struct event_args_s *args );

//Begin Alex
void EV_FireM41A( struct event_args_s *args  );
void EV_FireBeretta1( struct event_args_s *args  );
void EV_FireBeretta2( struct event_args_s *args  );
//end Alex

void EV_TrainPitchAdjust( struct event_args_s *args );
}

#define VECTOR_CONE_1DEGREES Vector( 0.00873f, 0.00873f, 0.00873f )
#define VECTOR_CONE_2DEGREES Vector( 0.01745f, 0.01745f, 0.01745f )
#define VECTOR_CONE_3DEGREES Vector( 0.02618f, 0.02618f, 0.02618f )
#define VECTOR_CONE_4DEGREES Vector( 0.03490f, 0.03490f, 0.03490f )
#define VECTOR_CONE_5DEGREES Vector( 0.04362f, 0.04362f, 0.04362f )
#define VECTOR_CONE_6DEGREES Vector( 0.05234f, 0.05234f, 0.05234f )
#define VECTOR_CONE_7DEGREES Vector( 0.06105f, 0.06105f, 0.06105f )	
#define VECTOR_CONE_8DEGREES Vector( 0.06976f, 0.06976f, 0.06976f )
#define VECTOR_CONE_9DEGREES Vector( 0.07846f, 0.07846f, 0.07846f )
#define VECTOR_CONE_10DEGREES Vector( 0.08716f, 0.08716f, 0.08716f )
#define VECTOR_CONE_15DEGREES Vector( 0.13053f, 0.13053f, 0.13053f )
#define VECTOR_CONE_20DEGREES Vector( 0.17365f, 0.17365f, 0.17365f )

// play a strike sound based on the texture that was hit by the attack traceline.  VecSrc/VecEnd are the
// original traceline endpoints used by the attacker, iBulletType is the type of bullet that hit the texture.
// returns volume of strike instrument (crowbar) to play
float EV_HLDM_PlayTextureSound( int idx, pmtrace_t *ptr, float *vecSrc, float *vecEnd, int iBulletType )
{
	// hit the world, try to play sound based on texture material type
	char chTextureType = CHAR_TEX_CONCRETE;
	float fvol;
	float fvolbar;
	const char *rgsz[4];
	int cnt;
	float fattn = ATTN_NORM;
	int entity;
	char *pTextureName;
	char texname[64];
	char szbuffer[64];

	entity = gEngfuncs.pEventAPI->EV_IndexFromTrace( ptr );

	// FIXME check if playtexture sounds movevar is set
	//
	chTextureType = 0;

	// Player
	if( entity >= 1 && entity <= gEngfuncs.GetMaxClients() )
	{
		// hit body
		chTextureType = CHAR_TEX_FLESH;
	}
	else if( entity == 0 )
	{
		// get texture from entity or world (world is ent(0))
		pTextureName = (char *)gEngfuncs.pEventAPI->EV_TraceTexture( ptr->ent, vecSrc, vecEnd );

		if ( pTextureName )
		{
			strcpy( texname, pTextureName );
			pTextureName = texname;

			// strip leading '-0' or '+0~' or '{' or '!'
			if( *pTextureName == '-' || *pTextureName == '+' )
			{
				pTextureName += 2;
			}

			if( *pTextureName == '{' || *pTextureName == '!' || *pTextureName == '~' || *pTextureName == ' ' )
			{
				pTextureName++;
			}

			// '}}'
			strcpy( szbuffer, pTextureName );
			szbuffer[CBTEXTURENAMEMAX - 1] = 0;

			// get texture type
			chTextureType = PM_FindTextureType( szbuffer );
		}
	}
	
	switch (chTextureType)
	{
	default:
	case CHAR_TEX_CONCRETE:
		fvol = 0.9;
		fvolbar = 0.6;
		rgsz[0] = "player/pl_step1.wav";
		rgsz[1] = "player/pl_step2.wav";
		cnt = 2;
		break;
	case CHAR_TEX_METAL:
		fvol = 0.9;
		fvolbar = 0.3;
		rgsz[0] = "player/pl_metal1.wav";
		rgsz[1] = "player/pl_metal2.wav";
		cnt = 2;
		break;
	case CHAR_TEX_DIRT:
		fvol = 0.9;
		fvolbar = 0.1;
		rgsz[0] = "player/pl_dirt1.wav";
		rgsz[1] = "player/pl_dirt2.wav";
		rgsz[2] = "player/pl_dirt3.wav";
		cnt = 3;
		break;
	case CHAR_TEX_VENT:
		fvol = 0.5;
		fvolbar = 0.3;
		rgsz[0] = "player/pl_duct1.wav";
		rgsz[1] = "player/pl_duct1.wav";
		cnt = 2;
		break;
	case CHAR_TEX_GRATE:
		fvol = 0.9;
		fvolbar = 0.5;
		rgsz[0] = "player/pl_grate1.wav";
		rgsz[1] = "player/pl_grate4.wav";
		cnt = 2;
		break;
	case CHAR_TEX_TILE:
		fvol = 0.8;
		fvolbar = 0.2;
		rgsz[0] = "player/pl_tile1.wav";
		rgsz[1] = "player/pl_tile3.wav";
		rgsz[2] = "player/pl_tile2.wav";
		rgsz[3] = "player/pl_tile4.wav";
		cnt = 4;
		break;
	case CHAR_TEX_SLOSH:
		fvol = 0.9;
		fvolbar = 0.0;
		rgsz[0] = "player/pl_slosh1.wav";
		rgsz[1] = "player/pl_slosh3.wav";
		rgsz[2] = "player/pl_slosh2.wav";
		rgsz[3] = "player/pl_slosh4.wav";
		cnt = 4;
		break;
	case CHAR_TEX_WOOD:
		fvol = 0.9;
		fvolbar = 0.2;
		rgsz[0] = "debris/wood1.wav";
		rgsz[1] = "debris/wood2.wav";
		rgsz[2] = "debris/wood3.wav";
		cnt = 3;
		break;
	case CHAR_TEX_GLASS:
	case CHAR_TEX_COMPUTER:
		fvol = 0.8;
		fvolbar = 0.2;
		rgsz[0] = "debris/glass1.wav";
		rgsz[1] = "debris/glass2.wav";
		rgsz[2] = "debris/glass3.wav";
		cnt = 3;
		break;
	case CHAR_TEX_FLESH:
		if( iBulletType == BULLET_PLAYER_CROWBAR )
			return 0.0; // crowbar already makes this sound
		fvol = 1.0;
		fvolbar = 0.2;
		rgsz[0] = "weapons/bullet_hit1.wav";
		rgsz[1] = "weapons/bullet_hit2.wav";
		fattn = 1.0;
		cnt = 2;
		break;
	}

	// play material hit sound
	gEngfuncs.pEventAPI->EV_PlaySound( 0, ptr->endpos, CHAN_STATIC, rgsz[gEngfuncs.pfnRandomLong( 0, cnt - 1 )], fvol, fattn, 0, 96 + gEngfuncs.pfnRandomLong( 0, 0xf ) );
	return fvolbar;
}

char *EV_HLDM_DamageDecal( physent_t *pe )
{
	static char decalname[32];
	int idx;

	if( pe->classnumber == 1 )
	{
		idx = gEngfuncs.pfnRandomLong( 0, 2 );
		sprintf( decalname, "{break%i", idx + 1 );
	}
	else if( pe->rendermode != kRenderNormal )
	{
		strcpy( decalname, "{bproof1" );
	}
	else
	{
		idx = gEngfuncs.pfnRandomLong( 0, 4 );
		sprintf( decalname, "{shot%i", idx + 1 );
	}
	return decalname;
}

void EV_HLDM_GunshotDecalTrace( pmtrace_t *pTrace, char *decalName )
{
	int iRand;
	physent_t *pe;

	gEngfuncs.pEfxAPI->R_BulletImpactParticles( pTrace->endpos );

	iRand = gEngfuncs.pfnRandomLong( 0, 0x7FFF );
	if( iRand < ( 0x7fff / 2 ) )// not every bullet makes a sound.
	{
		switch( iRand % 5 )
		{
		case 0:
			gEngfuncs.pEventAPI->EV_PlaySound( -1, pTrace->endpos, 0, "weapons/ric1.wav", 1.0, ATTN_NORM, 0, PITCH_NORM );
			break;
		case 1:
			gEngfuncs.pEventAPI->EV_PlaySound( -1, pTrace->endpos, 0, "weapons/ric2.wav", 1.0, ATTN_NORM, 0, PITCH_NORM );
			break;
		case 2:
			gEngfuncs.pEventAPI->EV_PlaySound( -1, pTrace->endpos, 0, "weapons/ric3.wav", 1.0, ATTN_NORM, 0, PITCH_NORM );
			break;
		case 3:
			gEngfuncs.pEventAPI->EV_PlaySound( -1, pTrace->endpos, 0, "weapons/ric4.wav", 1.0, ATTN_NORM, 0, PITCH_NORM );
			break;
		case 4:
			gEngfuncs.pEventAPI->EV_PlaySound( -1, pTrace->endpos, 0, "weapons/ric5.wav", 1.0, ATTN_NORM, 0, PITCH_NORM );
			break;
		}
	}

	pe = gEngfuncs.pEventAPI->EV_GetPhysent( pTrace->ent );

	// Only decal brush models such as the world etc.
	if(  decalName && decalName[0] && pe && ( pe->solid == SOLID_BSP || pe->movetype == MOVETYPE_PUSHSTEP ) )
	{
		if( CVAR_GET_FLOAT( "r_decals" ) )
		{
			gEngfuncs.pEfxAPI->R_DecalShoot(
				gEngfuncs.pEfxAPI->Draw_DecalIndex( gEngfuncs.pEfxAPI->Draw_DecalIndexFromName( decalName ) ),
				gEngfuncs.pEventAPI->EV_IndexFromTrace( pTrace ), 0, pTrace->endpos, 0 );
		}
	}
}

void EV_HLDM_DecalGunshot( pmtrace_t *pTrace, int iBulletType )
{
	physent_t *pe;

	pe = gEngfuncs.pEventAPI->EV_GetPhysent( pTrace->ent );

	if( pe && ( pe->solid == SOLID_BSP || pe->movetype == MOVETYPE_PUSHSTEP ) )
	{
		switch( iBulletType )
		{
		case BULLET_PLAYER_9MM:
		case BULLET_PLAYER_BERETTA: //Alex
		case BULLET_MONSTER_9MM:
		case BULLET_PLAYER_MP5:
//alex begin
		case BULLET_PLAYER_M41A:
		case BULLET_MONSTER_M41A:
//alex end
		case BULLET_MONSTER_MP5:
		case BULLET_PLAYER_BUCKSHOT:
		case BULLET_PLAYER_357:
		default:
			// smoke and decal
			EV_HLDM_GunshotDecalTrace( pTrace, EV_HLDM_DamageDecal( pe ) );
			break;
		}
	}
}

int EV_HLDM_CheckTracer( int idx, float *vecSrc, float *end, float *forward, float *right, int iBulletType, int iTracerFreq, int *tracerCount )
{
	int tracer = 0;
	int i;
	qboolean player = idx >= 1 && idx <= gEngfuncs.GetMaxClients() ? true : false;

	if( iTracerFreq != 0 && ( (*tracerCount)++ % iTracerFreq ) == 0 )
	{
		vec3_t vecTracerSrc;

		if( player )
		{
			vec3_t offset( 0, 0, -4 );

			// adjust tracer position for player
			for( i = 0; i < 3; i++ )
			{
				vecTracerSrc[i] = vecSrc[i] + offset[i] + right[i] * 2 + forward[i] * 16;
			}
		}
		else
		{
			VectorCopy( vecSrc, vecTracerSrc );
		}

		if( iTracerFreq != 1 )		// guns that always trace also always decal
			tracer = 1;

		switch( iBulletType )
		{
		case BULLET_PLAYER_MP5:
		case BULLET_MONSTER_MP5:
// Alex begin
		case BULLET_PLAYER_M41A:
		case BULLET_MONSTER_M41A:
// Alex end
		case BULLET_MONSTER_9MM:
		case BULLET_MONSTER_12MM:
		default:
			EV_CreateTracer( vecTracerSrc, end );
			break;
		}
	}

	return tracer;
}

/*
================
FireBullets

Go to the trouble of combining multiple pellets into a single damage call.
================
*/
void EV_HLDM_FireBullets( int idx, float *forward, float *right, float *up, int cShots, float *vecSrc, float *vecDirShooting, float flDistance, int iBulletType, int iTracerFreq, int *tracerCount, float flSpreadX, float flSpreadY )
{
	int i;
	pmtrace_t tr;
	int iShot;
	int tracer;

	for( iShot = 1; iShot <= cShots; iShot++ )	
	{
		vec3_t vecDir, vecEnd;
		float x, y, z;

		do{
			x = gEngfuncs.pfnRandomFloat( -0.5, 0.5 ) + gEngfuncs.pfnRandomFloat( -0.5, 0.5 );
			y = gEngfuncs.pfnRandomFloat( -0.5, 0.5 ) + gEngfuncs.pfnRandomFloat( -0.5, 0.5 );
			z = x * x + y * y;
		}while( z > 1 );

		for( i = 0 ; i < 3; i++ )
		{
			vecDir[i] = vecDirShooting[i] + x * flSpreadX * right[i] + y * flSpreadY * up [i];
			vecEnd[i] = vecSrc[i] + flDistance * vecDir[i];
		}

		gEngfuncs.pEventAPI->EV_SetUpPlayerPrediction( false, true );

		// Store off the old count
		gEngfuncs.pEventAPI->EV_PushPMStates();

		// Now add in all of the players.
		gEngfuncs.pEventAPI->EV_SetSolidPlayers( idx - 1 );	

		gEngfuncs.pEventAPI->EV_SetTraceHull( 2 );
		gEngfuncs.pEventAPI->EV_PlayerTrace( vecSrc, vecEnd, PM_STUDIO_BOX, -1, &tr );

		tracer = EV_HLDM_CheckTracer( idx, vecSrc, tr.endpos, forward, right, iBulletType, iTracerFreq, tracerCount );

		// do damage, paint decals
		if( tr.fraction != 1.0f )
		{
			switch( iBulletType )
			{
			default:
			case BULLET_PLAYER_BERETTA: // Alex
			case BULLET_PLAYER_9MM:
				EV_HLDM_PlayTextureSound( idx, &tr, vecSrc, vecEnd, iBulletType );
				EV_HLDM_DecalGunshot( &tr, iBulletType );
				break;
// Alex begin
			case BULLET_PLAYER_M41A:		
// Alex end
			case BULLET_PLAYER_MP5:
				if( !tracer )
				{
					EV_HLDM_PlayTextureSound( idx, &tr, vecSrc, vecEnd, iBulletType );
					EV_HLDM_DecalGunshot( &tr, iBulletType );
				}
				break;
			case BULLET_PLAYER_BUCKSHOT:
				EV_HLDM_DecalGunshot( &tr, iBulletType );
				break;
			case BULLET_PLAYER_357:
				EV_HLDM_PlayTextureSound( idx, &tr, vecSrc, vecEnd, iBulletType );
				EV_HLDM_DecalGunshot( &tr, iBulletType );
				break;
			}
		}

		gEngfuncs.pEventAPI->EV_PopPMStates();
	}
}

//======================
//	    GLOCK START
//======================
// Shared Glock fire implementation for EV_FireGlock1 and EV_FireGlock2.
static void EV_FireGlock_Impl( event_args_t *args )
{
	int idx;
	vec3_t origin;
	vec3_t angles;
	vec3_t velocity;
	int empty;

	vec3_t ShellVelocity;
	vec3_t ShellOrigin;
	int shell;
	vec3_t vecSrc, vecAiming;
	vec3_t up, right, forward;

	idx = args->entindex;
	VectorCopy( args->origin, origin );
	VectorCopy( args->angles, angles );
	VectorCopy( args->velocity, velocity );

	empty = args->bparam1;
	AngleVectors( angles, forward, right, up );

	shell = gEngfuncs.pEventAPI->EV_FindModelIndex( "models/shell.mdl" );// brass shell

	if( EV_IsLocal( idx ) )
	{
		EV_MuzzleFlash();
		gEngfuncs.pEventAPI->EV_WeaponAnimation( empty ? GLOCK_SHOOT_EMPTY : GLOCK_SHOOT, 0 );

		V_PunchAxis( 0, -2.0 );
	}

	EV_GetDefaultShellInfo( args, origin, velocity, ShellVelocity, ShellOrigin, forward, right, up, 20, -12, 4 );

	EV_EjectBrass( ShellOrigin, ShellVelocity, angles[YAW], shell, TE_BOUNCE_SHELL );

	gEngfuncs.pEventAPI->EV_PlaySound( idx, origin, CHAN_WEAPON, "weapons/pl_gun3.wav", gEngfuncs.pfnRandomFloat( 0.92, 1.0 ), ATTN_NORM, 0, 98 + gEngfuncs.pfnRandomLong( 0, 3 ) );

	EV_GetGunPosition( args, vecSrc, origin );

	VectorCopy( forward, vecAiming );

	EV_HLDM_FireBullets( idx, forward, right, up, 1, vecSrc, vecAiming, 8192, BULLET_PLAYER_9MM, 0, &g_tracerCount[idx - 1], args->fparam1, args->fparam2 );
}

void EV_FireGlock1( event_args_t *args )
{
	EV_FireGlock_Impl( args );
}

void EV_FireGlock2( event_args_t *args )
{
	EV_FireGlock_Impl( args );
}
//======================
//	   GLOCK END
//======================

//======================
//	  SHOTGUN START
//======================
void EV_FireShotGunDouble( event_args_t *args )
{
	int idx;
	vec3_t origin;
	vec3_t angles;
	vec3_t velocity;

	int j;
	vec3_t ShellVelocity;
	vec3_t ShellOrigin;
	int shell;
	vec3_t vecSrc, vecAiming;
	//vec3_t vecSpread;
	vec3_t up, right, forward;
	//float flSpread = 0.01;

	idx = args->entindex;
	VectorCopy( args->origin, origin );
	VectorCopy( args->angles, angles );
	VectorCopy( args->velocity, velocity );

	AngleVectors( angles, forward, right, up );

	shell = gEngfuncs.pEventAPI->EV_FindModelIndex("models/shotgunshell.mdl");// brass shell

	if( EV_IsLocal( idx ) )
	{
		// Add muzzle flash to current weapon model
		EV_MuzzleFlash();
		gEngfuncs.pEventAPI->EV_WeaponAnimation( SHOTGUN_FIRE2, 0 );
		V_PunchAxis( 0, -10.0 );
	}

	for( j = 0; j < 2; j++ )
	{
		EV_GetDefaultShellInfo( args, origin, velocity, ShellVelocity, ShellOrigin, forward, right, up, 32, -12, 6 );

		EV_EjectBrass( ShellOrigin, ShellVelocity, angles[ YAW ], shell, TE_BOUNCE_SHOTSHELL ); 
	}

	gEngfuncs.pEventAPI->EV_PlaySound( idx, origin, CHAN_WEAPON, "weapons/dbarrel1.wav", gEngfuncs.pfnRandomFloat( 0.98, 1.0 ), ATTN_NORM, 0, 85 + gEngfuncs.pfnRandomLong( 0, 0x1f ) );

	EV_GetGunPosition( args, vecSrc, origin );
	VectorCopy( forward, vecAiming );

	if( gEngfuncs.GetMaxClients() > 1 )
	{
		EV_HLDM_FireBullets( idx, forward, right, up, 8, vecSrc, vecAiming, 2048, BULLET_PLAYER_BUCKSHOT, 0, &g_tracerCount[idx - 1], 0.17365, 0.04362 );
	}
	else
	{
		EV_HLDM_FireBullets( idx, forward, right, up, 12, vecSrc, vecAiming, 2048, BULLET_PLAYER_BUCKSHOT, 0, &g_tracerCount[idx - 1], 0.08716, 0.08716 );
	}
}

void EV_FireShotGunSingle( event_args_t *args )
{
	int idx;
	vec3_t origin;
	vec3_t angles;
	vec3_t velocity;

	vec3_t ShellVelocity;
	vec3_t ShellOrigin;
	int shell;
	vec3_t vecSrc, vecAiming;
	//vec3_t vecSpread;
	vec3_t up, right, forward;
	//float flSpread = 0.01;

	idx = args->entindex;
	VectorCopy( args->origin, origin );
	VectorCopy( args->angles, angles );
	VectorCopy( args->velocity, velocity );

	AngleVectors( angles, forward, right, up );

	shell = gEngfuncs.pEventAPI->EV_FindModelIndex("models/shotgunshell.mdl");// brass shell

	if( EV_IsLocal( idx ) )
	{
		// Add muzzle flash to current weapon model
		EV_MuzzleFlash();
		gEngfuncs.pEventAPI->EV_WeaponAnimation( SHOTGUN_FIRE, 0 );

		V_PunchAxis( 0, -5.0 );
	}

	EV_GetDefaultShellInfo( args, origin, velocity, ShellVelocity, ShellOrigin, forward, right, up, 32, -12, 6 );

	EV_EjectBrass ( ShellOrigin, ShellVelocity, angles[YAW], shell, TE_BOUNCE_SHOTSHELL ); 

	gEngfuncs.pEventAPI->EV_PlaySound( idx, origin, CHAN_WEAPON, "weapons/sbarrel1.wav", gEngfuncs.pfnRandomFloat( 0.95, 1.0 ), ATTN_NORM, 0, 93 + gEngfuncs.pfnRandomLong( 0, 0x1f ) );

	EV_GetGunPosition( args, vecSrc, origin );
	VectorCopy( forward, vecAiming );

	if( gEngfuncs.GetMaxClients() > 1 )
	{
		EV_HLDM_FireBullets( idx, forward, right, up, 4, vecSrc, vecAiming, 2048, BULLET_PLAYER_BUCKSHOT, 0, &g_tracerCount[idx - 1], 0.08716, 0.04362 );
	}
	else
	{
		EV_HLDM_FireBullets( idx, forward, right, up, 6, vecSrc, vecAiming, 2048, BULLET_PLAYER_BUCKSHOT, 0, &g_tracerCount[idx - 1], 0.08716, 0.08716 );
	}
}
//======================
//	   SHOTGUN END
//======================

//======================
//	    MP5 START
//======================
void EV_FireMP5( event_args_t *args )
{
	int idx;
	vec3_t origin;
	vec3_t angles;
	vec3_t velocity;

	vec3_t ShellVelocity;
	vec3_t ShellOrigin;
	int shell;
	vec3_t vecSrc, vecAiming;
	vec3_t up, right, forward;
	//float flSpread = 0.01;

	idx = args->entindex;
	VectorCopy( args->origin, origin );
	VectorCopy( args->angles, angles );
	VectorCopy( args->velocity, velocity );

	AngleVectors( angles, forward, right, up );

	shell = gEngfuncs.pEventAPI->EV_FindModelIndex("models/shell.mdl");// brass shell

	if( EV_IsLocal( idx ) )
	{
		// Add muzzle flash to current weapon model
		EV_MuzzleFlash();
		gEngfuncs.pEventAPI->EV_WeaponAnimation( MP5_FIRE1 + gEngfuncs.pfnRandomLong( 0, 2 ), 0 );

		V_PunchAxis( 0, gEngfuncs.pfnRandomFloat( -2, 2 ) );
	}

	EV_GetDefaultShellInfo( args, origin, velocity, ShellVelocity, ShellOrigin, forward, right, up, 20, -12, 4 );

	EV_EjectBrass ( ShellOrigin, ShellVelocity, angles[YAW], shell, TE_BOUNCE_SHELL ); 

	switch( gEngfuncs.pfnRandomLong( 0, 1 ) )
	{
	case 0:
		gEngfuncs.pEventAPI->EV_PlaySound( idx, origin, CHAN_WEAPON, "weapons/hks1.wav", 1, ATTN_NORM, 0, 94 + gEngfuncs.pfnRandomLong( 0, 0xf ) );
		break;
	case 1:
		gEngfuncs.pEventAPI->EV_PlaySound( idx, origin, CHAN_WEAPON, "weapons/hks2.wav", 1, ATTN_NORM, 0, 94 + gEngfuncs.pfnRandomLong( 0, 0xf ) );
		break;
	}

	EV_GetGunPosition( args, vecSrc, origin );
	VectorCopy( forward, vecAiming );

	EV_HLDM_FireBullets( idx, forward, right, up, 1, vecSrc, vecAiming, 8192, BULLET_PLAYER_MP5, 2, &g_tracerCount[idx - 1], args->fparam1, args->fparam2 );
}

//======================
//		 MP5 END
//======================

//======================
//	   PHYTON START 
//	     ( .357 )
//======================
void EV_FirePython( event_args_t *args )
{
	int idx;
	vec3_t origin;
	vec3_t angles;
	vec3_t velocity;

	vec3_t vecSrc, vecAiming;
	vec3_t up, right, forward;
	//float flSpread = 0.01;

	idx = args->entindex;
	VectorCopy( args->origin, origin );
	VectorCopy( args->angles, angles );
	VectorCopy( args->velocity, velocity );

	AngleVectors( angles, forward, right, up );

	if( EV_IsLocal( idx ) )
	{
		// Python uses different body in multiplayer versus single player
		int multiplayer = gEngfuncs.GetMaxClients() == 1 ? 0 : 1;

		// Add muzzle flash to current weapon model
		EV_MuzzleFlash();
		gEngfuncs.pEventAPI->EV_WeaponAnimation( PYTHON_FIRE1, multiplayer ? 1 : 0 );

		V_PunchAxis( 0, -10.0 );
	}

	switch( gEngfuncs.pfnRandomLong( 0, 1 ) )
	{
	case 0:
		gEngfuncs.pEventAPI->EV_PlaySound( idx, origin, CHAN_WEAPON, "weapons/357_shot1.wav", gEngfuncs.pfnRandomFloat( 0.8, 0.9 ), ATTN_NORM, 0, PITCH_NORM );
		break;
	case 1:
		gEngfuncs.pEventAPI->EV_PlaySound( idx, origin, CHAN_WEAPON, "weapons/357_shot2.wav", gEngfuncs.pfnRandomFloat( 0.8, 0.9 ), ATTN_NORM, 0, PITCH_NORM );
		break;
	}

	EV_GetGunPosition( args, vecSrc, origin );

	VectorCopy( forward, vecAiming );

	EV_HLDM_FireBullets( idx, forward, right, up, 1, vecSrc, vecAiming, 8192, BULLET_PLAYER_357, 0, &g_tracerCount[idx - 1], args->fparam1, args->fparam2 );
}
//======================
//	    PHYTON END 
//	     ( .357 )
//======================

//======================
//	   GAUSS START 
//======================
#define SND_STOP			(1 << 5)
#define SND_CHANGE_PITCH	(1 << 7)		// duplicated in protocol.h change sound pitch

void EV_SpinGauss( event_args_t *args )
{
	int idx;
	vec3_t origin;
	vec3_t angles;
	vec3_t velocity;
	int iSoundState = 0;

	int pitch;

	idx = args->entindex;
	VectorCopy( args->origin, origin );
	VectorCopy( args->angles, angles );
	VectorCopy( args->velocity, velocity );

	pitch = args->iparam1;

	iSoundState = args->bparam1 ? SND_CHANGE_PITCH : 0;
	iSoundState = args->bparam2 ? SND_STOP : iSoundState;

	gEngfuncs.pEventAPI->EV_PlaySound( idx, origin, CHAN_WEAPON, "ambience/pulsemachine.wav", 1.0, ATTN_NORM, iSoundState, pitch );
}

/*
==============================
EV_StopPreviousGauss

==============================
*/
void EV_StopPreviousGauss( int idx )
{
	// Make sure we don't have a gauss spin event in the queue for this guy
	gEngfuncs.pEventAPI->EV_KillEvents( idx, "events/gaussspin.sc" );
	gEngfuncs.pEventAPI->EV_StopSound( idx, CHAN_WEAPON, "ambience/pulsemachine.wav" );
}

extern float g_flApplyVel;

void EV_FireGauss( event_args_t *args )
{
	int idx;
	vec3_t origin;
	vec3_t angles;
	vec3_t velocity;
	float flDamage = args->fparam1;
	//int primaryfire = args->bparam1;

	int m_fPrimaryFire = args->bparam1;
	//int m_iWeaponVolume = GAUSS_PRIMARY_FIRE_VOLUME;
	vec3_t vecSrc;
	vec3_t vecDest;
	//edict_t		*pentIgnore;
	pmtrace_t tr, beam_tr;
	float flMaxFrac = 1.0;
	//int nTotal = 0;
	int fHasPunched = 0;
	int fFirstBeam = 1;
	int nMaxHits = 10;
	physent_t *pEntity;
	int m_iBeam, m_iGlow, m_iBalls;
	vec3_t up, right, forward;

	idx = args->entindex;
	VectorCopy( args->origin, origin );
	VectorCopy( args->angles, angles );
	VectorCopy( args->velocity, velocity );

	if( args->bparam2 )
	{
		EV_StopPreviousGauss( idx );
		return;
	}

	//Con_Printf( "Firing gauss with %f\n", flDamage );
	EV_GetGunPosition( args, vecSrc, origin );

	m_iBeam = gEngfuncs.pEventAPI->EV_FindModelIndex( "sprites/smoke.spr" );
	m_iBalls = m_iGlow = gEngfuncs.pEventAPI->EV_FindModelIndex( "sprites/hotglow.spr" );

	AngleVectors( angles, forward, right, up );

	VectorMA( vecSrc, 8192, forward, vecDest );

	if( EV_IsLocal( idx ) )
	{
		V_PunchAxis( 0.0f, -2.0f );
		gEngfuncs.pEventAPI->EV_WeaponAnimation( GAUSS_FIRE2, 0 );

		if( m_fPrimaryFire == false )
			 g_flApplyVel = flDamage; 
	}

	gEngfuncs.pEventAPI->EV_PlaySound( idx, origin, CHAN_WEAPON, "weapons/gauss2.wav", 0.5f + flDamage * ( 1.0f / 400.0f ), ATTN_NORM, 0, 85 + gEngfuncs.pfnRandomLong( 0, 0x1f ) );

	while( flDamage > 10 && nMaxHits > 0 )
	{
		nMaxHits--;

		gEngfuncs.pEventAPI->EV_SetUpPlayerPrediction( false, true );
		
		// Store off the old count
		gEngfuncs.pEventAPI->EV_PushPMStates();
	
		// Now add in all of the players.
		gEngfuncs.pEventAPI->EV_SetSolidPlayers( idx - 1 );	

		gEngfuncs.pEventAPI->EV_SetTraceHull( 2 );
		gEngfuncs.pEventAPI->EV_PlayerTrace( vecSrc, vecDest, PM_STUDIO_BOX, -1, &tr );

		gEngfuncs.pEventAPI->EV_PopPMStates();

		if( tr.allsolid )
			break;

		if( fFirstBeam )
		{
			if( EV_IsLocal( idx ) )
			{
				// Add muzzle flash to current weapon model
				EV_MuzzleFlash();
			}
			fFirstBeam = 0;

			gEngfuncs.pEfxAPI->R_BeamEntPoint( 
				idx | 0x1000,
				tr.endpos,
				m_iBeam,
				0.1f,
				m_fPrimaryFire ? 1.0f : 2.5f,
				0.0f,
				(m_fPrimaryFire ? 128.0f : flDamage) / 255.0f,
				0,
				0,
				0,
				(m_fPrimaryFire ? 255 : 255) / 255.0f,
				(m_fPrimaryFire ? 128 : 255) / 255.0f,
				(m_fPrimaryFire ? 0 : 255) / 255.0f
			);
		}
		else
		{
			gEngfuncs.pEfxAPI->R_BeamPoints( vecSrc,
				tr.endpos,
				m_iBeam,
				0.1f,
				m_fPrimaryFire ? 1.0f : 2.5f,
				0.0f,
				(m_fPrimaryFire ? 128.0f : flDamage) / 255.0f,
				0,
				0,
				0,
				(m_fPrimaryFire ? 255 : 255) / 255.0f,
				(m_fPrimaryFire ? 128 : 255) / 255.0f,
				(m_fPrimaryFire ? 0 : 255) / 255.0f
			);
		}

		pEntity = gEngfuncs.pEventAPI->EV_GetPhysent( tr.ent );
		if( pEntity == NULL )
			break;

		if( pEntity->solid == SOLID_BSP )
		{
			float n;

			//pentIgnore = NULL;

			n = -DotProduct( tr.plane.normal, forward );

			if( n < 0.5f ) // 60 degrees	
			{
				// ALERT( at_console, "reflect %f\n", n );
				// reflect
				vec3_t r;

				VectorMA( forward, 2.0f * n, tr.plane.normal, r );

				flMaxFrac = flMaxFrac - tr.fraction;

				VectorCopy( r, forward );

				VectorMA( tr.endpos, 8.0, forward, vecSrc );
				VectorMA( vecSrc, 8192.0, forward, vecDest );

				gEngfuncs.pEfxAPI->R_TempSprite( tr.endpos, vec3_origin, 0.2, m_iGlow, kRenderGlow, kRenderFxNoDissipation, flDamage * n / 255.0f, flDamage * n * 0.5f * 0.1f, FTENT_FADEOUT );

				vec3_t fwd;
				VectorAdd( tr.endpos, tr.plane.normal, fwd );

				gEngfuncs.pEfxAPI->R_Sprite_Trail( TE_SPRITETRAIL, tr.endpos, fwd, m_iBalls, 3, 0.1, gEngfuncs.pfnRandomFloat( 10.0f, 20.0f ) / 100.0f, 100,
									255, 100 );

				// lose energy
				if( n == 0.0f )
				{
					n = 0.1f;
				}

				flDamage = flDamage * ( 1 - n );
			}
			else
			{
				// tunnel
				EV_HLDM_DecalGunshot( &tr, BULLET_MONSTER_12MM );

				gEngfuncs.pEfxAPI->R_TempSprite( tr.endpos, vec3_origin, 1.0, m_iGlow, kRenderGlow, kRenderFxNoDissipation, flDamage / 255.0f, 6.0f, FTENT_FADEOUT );

				// limit it to one hole punch
				if( fHasPunched )
				{
					break;
				}
				fHasPunched = 1;
				
				// try punching through wall if secondary attack (primary is incapable of breaking through)
				if( !m_fPrimaryFire )
				{
					vec3_t start;

					VectorMA( tr.endpos, 8.0, forward, start );

					// Store off the old count
					gEngfuncs.pEventAPI->EV_PushPMStates();

					// Now add in all of the players.
					gEngfuncs.pEventAPI->EV_SetSolidPlayers ( idx - 1 );

					gEngfuncs.pEventAPI->EV_SetTraceHull( 2 );
					gEngfuncs.pEventAPI->EV_PlayerTrace( start, vecDest, PM_STUDIO_BOX, -1, &beam_tr );

					if( !beam_tr.allsolid )
					{
						vec3_t delta;

						// trace backwards to find exit point
						gEngfuncs.pEventAPI->EV_PlayerTrace( beam_tr.endpos, tr.endpos, PM_STUDIO_BOX, -1, &beam_tr );

						VectorSubtract( beam_tr.endpos, tr.endpos, delta );

						n = Length( delta );

						if( n < flDamage )
						{
							if( n == 0 )
								n = 1;
							flDamage -= n;

							// absorption balls
							{
								vec3_t fwd;
								VectorSubtract( tr.endpos, forward, fwd );
								gEngfuncs.pEfxAPI->R_Sprite_Trail( TE_SPRITETRAIL, tr.endpos, fwd, m_iBalls, 3, 0.1, gEngfuncs.pfnRandomFloat( 10.0f, 20.0f ) / 100.0f, 100,
									255, 100 );
							}

	//////////////////////////////////// WHAT TO DO HERE
							// CSoundEnt::InsertSound( bits_SOUND_COMBAT, pev->origin, NORMAL_EXPLOSION_VOLUME, 3.0 );

							EV_HLDM_DecalGunshot( &beam_tr, BULLET_MONSTER_12MM );

							gEngfuncs.pEfxAPI->R_TempSprite( beam_tr.endpos, vec3_origin, 0.1, m_iGlow, kRenderGlow, kRenderFxNoDissipation, flDamage / 255.0f, 6.0f, FTENT_FADEOUT );

							// balls
							{
								vec3_t fwd;
								VectorSubtract( beam_tr.endpos, forward, fwd );
								gEngfuncs.pEfxAPI->R_Sprite_Trail( TE_SPRITETRAIL, beam_tr.endpos, fwd, m_iBalls, (int)( flDamage * 0.3f ), 0.1, gEngfuncs.pfnRandomFloat( 10.0f, 20.0f ) / 100.0f, 200,
									255, 40 );
							}

							VectorAdd( beam_tr.endpos, forward, vecSrc );
						}
					}
					else
					{
						flDamage = 0;
					}

					gEngfuncs.pEventAPI->EV_PopPMStates();
				}
				else
				{
					if( m_fPrimaryFire )
					{
						// slug doesn't punch through ever with primary 
						// fire, so leave a little glowy bit and make some balls
						gEngfuncs.pEfxAPI->R_TempSprite( tr.endpos, vec3_origin, 0.2, m_iGlow, kRenderGlow, kRenderFxNoDissipation, 200.0f / 255.0f, 0.3, FTENT_FADEOUT );
						{
							vec3_t fwd;
							VectorAdd( tr.endpos, tr.plane.normal, fwd );
							gEngfuncs.pEfxAPI->R_Sprite_Trail( TE_SPRITETRAIL, tr.endpos, fwd, m_iBalls, 8, 0.6, gEngfuncs.pfnRandomFloat( 10.0f, 20.0f ) / 100.0f, 100,
								255, 200 );
						}
					}

					flDamage = 0;
				}
			}
		}
		else
		{
			VectorAdd( tr.endpos, forward, vecSrc );
		}
	}
}
//======================
//	   GAUSS END 
//======================

void EV_TrainPitchAdjust( event_args_t *args )
{
	int idx;
	vec3_t origin;

	unsigned short us_params;
	int noise;
	float m_flVolume;
	int pitch;
	int stop;

	const char *pszSound;

	idx = args->entindex;

	VectorCopy( args->origin, origin );

	us_params = (unsigned short)args->iparam1;
	stop = args->bparam1;

	m_flVolume = (float)( us_params & 0x003f ) / 40.0f;
	noise = (int)( ( ( us_params ) >> 12 ) & 0x0007 );
	pitch = (int)( 10.0f * (float)( ( us_params >> 6 ) & 0x003f ) );

	switch( noise )
	{
	case 1:
		pszSound = "plats/ttrain1.wav";
		break;
	case 2:
		pszSound = "plats/ttrain2.wav";
		break;
	case 3:
		pszSound = "plats/ttrain3.wav";
		break; 
	case 4:
		pszSound = "plats/ttrain4.wav";
		break;
	case 5:
		pszSound = "plats/ttrain6.wav";
		break;
	case 6:
		pszSound = "plats/ttrain7.wav";
		break;
	default:
		// no sound
		return;
	}

	if( stop )
	{
		gEngfuncs.pEventAPI->EV_StopSound( idx, CHAN_STATIC, pszSound );
	}
	else
	{
		gEngfuncs.pEventAPI->EV_PlaySound( idx, origin, CHAN_STATIC, pszSound, m_flVolume, ATTN_NORM, SND_CHANGE_PITCH, pitch );
	}
}

int EV_TFC_IsAllyTeam( int iTeam1, int iTeam2 )
{
	return 0;
}

//begin Alex
//======================
//	    BERETTA START
//======================
enum beretta_e {
	BERETTA_IDLE1 = 0,
	BERETTA_IDLE2,
	BERETTA_IDLE3,
	BERETTA_SHOOT,
	BERETTA_SHOOT_EMPTY,
	BERETTA_RELOAD,
	BERETTA_RELOAD_NOT_EMPTY,
	BERETTA_DRAW,
	BERETTA_HOLSTER,
	BERETTA_ADD_SILENCER
};

void EV_FireBeretta1( event_args_t *args )
{
	int idx;
	vec3_t origin;
	vec3_t angles;
	vec3_t velocity;
	int empty;

	vec3_t ShellVelocity;
	vec3_t ShellOrigin;
	int shell;
	vec3_t vecSrc, vecAiming;
	vec3_t up, right, forward;
	
	idx = args->entindex;
	VectorCopy( args->origin, origin );
	VectorCopy( args->angles, angles );
	VectorCopy( args->velocity, velocity );

	empty = args->bparam1;
	AngleVectors( angles, forward, right, up );

	shell = gEngfuncs.pEventAPI->EV_FindModelIndex( "models/shell.mdl" );// brass shell

	if( EV_IsLocal( idx ) )
	{
		EV_MuzzleFlash();
		gEngfuncs.pEventAPI->EV_WeaponAnimation( empty ? BERETTA_SHOOT_EMPTY : BERETTA_SHOOT, 2 );

		V_PunchAxis( 0, -2.0 );
	}

	EV_GetDefaultShellInfo( args, origin, velocity, ShellVelocity, ShellOrigin, forward, right, up, 20, -12, 4 );

	EV_EjectBrass( ShellOrigin, ShellVelocity, angles[YAW], shell, TE_BOUNCE_SHELL ); 

	gEngfuncs.pEventAPI->EV_PlaySound( idx, origin, CHAN_WEAPON, "weapons/beretta_fire1.wav", gEngfuncs.pfnRandomFloat( 0.92, 1.0 ), ATTN_NORM, 0, 98 + gEngfuncs.pfnRandomLong( 0, 3 ) );

	EV_GetGunPosition( args, vecSrc, origin );
	
	VectorCopy( forward, vecAiming );

	EV_HLDM_FireBullets( idx, forward, right, up, 1, vecSrc, vecAiming, 8192, BULLET_PLAYER_BERETTA, 0, 0, args->fparam1, args->fparam2 );
}

void EV_FireBeretta2( event_args_t *args )
{
	int idx;
	vec3_t origin;
	vec3_t angles;
	vec3_t velocity;
	int empty;
	
	vec3_t ShellVelocity;
	vec3_t ShellOrigin;
	int shell;
	vec3_t vecSrc, vecAiming;
	vec3_t vecSpread;
	vec3_t up, right, forward;

	idx = args->entindex;
	VectorCopy( args->origin, origin );
	VectorCopy( args->angles, angles );
	VectorCopy( args->velocity, velocity );

	empty = args->bparam1;
	AngleVectors( angles, forward, right, up );

	shell = gEngfuncs.pEventAPI->EV_FindModelIndex( "models/shell.mdl" );// brass shell

	if( EV_IsLocal( idx ) )
	{
		// Add muzzle flash to current weapon model
		EV_MuzzleFlash();
		gEngfuncs.pEventAPI->EV_WeaponAnimation( empty ? BERETTA_SHOOT_EMPTY : BERETTA_SHOOT, 2 );

		V_PunchAxis( 0, -2.0 );
	}

	EV_GetDefaultShellInfo( args, origin, velocity, ShellVelocity, ShellOrigin, forward, right, up, 20, -12, 4 );

	EV_EjectBrass( ShellOrigin, ShellVelocity, angles[YAW], shell, TE_BOUNCE_SHELL ); 

	gEngfuncs.pEventAPI->EV_PlaySound( idx, origin, CHAN_WEAPON, "weapons/beretta_fire1.wav", gEngfuncs.pfnRandomFloat( 0.92, 1.0 ), ATTN_NORM, 0, 98 + gEngfuncs.pfnRandomLong( 0, 3 ) );

	EV_GetGunPosition( args, vecSrc, origin );
	
	VectorCopy( forward, vecAiming );

	EV_HLDM_FireBullets( idx, forward, right, up, 1, vecSrc, vecAiming, 8192, BULLET_PLAYER_BERETTA, 0, &g_tracerCount[idx-1], args->fparam1, args->fparam2 );
}
//======================
//	   BERETTA END
//======================
//end Alex

//Alex begin
//======================
//	    M41A START
//======================
enum m41a_e
{
	M41A_LONGIDLE = 0,
	M41A_IDLE1,
	M41A_LAUNCH,
	M41A_RELOAD,
	M41A_DEPLOY,
	M41A_FIRE1,
	M41A_FIRE2,
	M41A_FIRE3,
	M41A_HOLSTER
};

void EV_FireM41A( event_args_t *args )
{
	int idx;
	vec3_t origin;
	vec3_t angles;
	vec3_t velocity;

	vec3_t ShellVelocity;
	vec3_t ShellOrigin;
	int shell;
	vec3_t vecSrc, vecAiming;
	vec3_t up, right, forward;
	float flSpread = 0.01;

	idx = args->entindex;
	VectorCopy( args->origin, origin );
	VectorCopy( args->angles, angles );
	VectorCopy( args->velocity, velocity );

	AngleVectors( angles, forward, right, up );

	shell = gEngfuncs.pEventAPI->EV_FindModelIndex( "models/shell.mdl" );// brass shell
	
	if( EV_IsLocal( idx ) )
	{
		// Add muzzle flash to current weapon model
		EV_MuzzleFlash();
		gEngfuncs.pEventAPI->EV_WeaponAnimation( M41A_FIRE1 + gEngfuncs.pfnRandomLong( 0, 2 ), 2 );

		V_PunchAxis( 0, gEngfuncs.pfnRandomFloat( -2, 2 ) );
	}

	EV_GetDefaultShellInfo( args, origin, velocity, ShellVelocity, ShellOrigin, forward, right, up, 20, -12, 4 );

	EV_EjectBrass( ShellOrigin, ShellVelocity, angles[YAW], shell, TE_BOUNCE_SHELL ); 

	gEngfuncs.pEventAPI->EV_PlaySound( idx, origin, CHAN_WEAPON, "weapons/m41ahks1.wav", 1, ATTN_NORM, 0, 94 + gEngfuncs.pfnRandomLong( 0, 0xf ) );

	EV_GetGunPosition( args, vecSrc, origin );
	VectorCopy( forward, vecAiming );

	EV_HLDM_FireBullets( idx, forward, right, up, 1, vecSrc, vecAiming, 8192, BULLET_PLAYER_M41A, 2, &g_tracerCount[idx-1], args->fparam1, args->fparam2 );
}
//======================
//		 M41A END
//====================== 
//Alex end