//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
//
// Purpose: 
//
//=============================================================================//

#include "cbase.h"
#include "player.h"
#include "gamerules.h"
#include "npcevent.h"
#include "engine/IEngineSound.h"
#include "items.h"
#include "in_buttons.h"
#include "soundent.h"
#include "gamestats.h"

#include "weapon_smokegrenade.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"

#define SMOKE_GRENADE_TIMER	1.0f //Seconds

#define SMOKE_GRENADE_PAUSED_NO			0
#define SMOKE_GRENADE_PAUSED_PRIMARY		1
#define SMOKE_GRENADE_PAUSED_SECONDARY	2

#define SMOKE_GRENADE_RADIUS	4.0f // inches




BEGIN_DATADESC( CWeaponSmokeGrenade )

END_DATADESC()

acttable_t	CWeaponSmokeGrenade::m_acttable[] = 
{
	{ ACT_HL2MP_IDLE,                    ACT_HL2MP_IDLE_GRENADE,                    false },	// Light Kill : MP animstate for singleplayer
    { ACT_HL2MP_RUN,                    ACT_HL2MP_RUN_GRENADE,                    false },
    { ACT_HL2MP_IDLE_CROUCH,            ACT_HL2MP_IDLE_CROUCH_GRENADE,            false },
    { ACT_HL2MP_WALK_CROUCH,            ACT_HL2MP_WALK_CROUCH_GRENADE,            false },
    { ACT_HL2MP_GESTURE_RANGE_ATTACK,    ACT_HL2MP_GESTURE_RANGE_ATTACK_GRENADE,    false },
    { ACT_HL2MP_GESTURE_RELOAD,            ACT_HL2MP_GESTURE_RELOAD_GRENADE,        false },
    { ACT_HL2MP_JUMP,	ACT_HL2MP_JUMP_SLAM,                    false },

	{ ACT_RANGE_ATTACK1, ACT_RANGE_ATTACK_THROW, true },

	{ ACT_IDLE_RELAXED,				ACT_IDLE,		false },	// L1ght 15 : Anims update
	{ ACT_RUN_RELAXED,				ACT_RUN,		false },
	{ ACT_WALK_RELAXED,				ACT_WALK,		false },
};

IMPLEMENT_ACTTABLE(CWeaponSmokeGrenade);

IMPLEMENT_SERVERCLASS_ST(CWeaponSmokeGrenade, DT_WeaponSmokeGrenade)
END_SEND_TABLE()

LINK_ENTITY_TO_CLASS( weapon_smokegrenade, CWeaponSmokeGrenade );
PRECACHE_WEAPON_REGISTER(weapon_smokegrenade);

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : *pPlayer - 
//-----------------------------------------------------------------------------
void CWeaponSmokeGrenade::ThrowGrenade( CBasePlayer *pPlayer )
{
	Vector	vecEye = pPlayer->EyePosition();
	Vector	vForward, vRight;

	pPlayer->EyeVectors( &vForward, &vRight, NULL );
	Vector vecSrc = vecEye + vForward * 18.0f + vRight * 8.0f;
	CheckThrowPosition( pPlayer, vecEye, vecSrc );
//	vForward[0] += 0.1f;
	vForward[2] += 0.1f;

	Vector vecThrow;
	pPlayer->GetVelocity( &vecThrow, NULL );
	vecThrow += vForward * 1200;
	SmokeGrenade_Create( vecSrc, vec3_angle, vecThrow, AngularImpulse(600,random->RandomInt(-1200,1200),0), pPlayer, SMOKE_GRENADE_TIMER );

	m_bRedraw = true;

	WeaponSound( SINGLE );

	// Send the player 'attack' animation.
	pPlayer->SetAnimation(PLAYER_ATTACK1);

	m_iPrimaryAttacks++;
	gamestats->Event_WeaponFired( pPlayer, true, GetClassname() );
}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : *pPlayer - 
//-----------------------------------------------------------------------------
void CWeaponSmokeGrenade::LobGrenade( CBasePlayer *pPlayer )
{
	Vector	vecEye = pPlayer->EyePosition();
	Vector	vForward, vRight;

	pPlayer->EyeVectors( &vForward, &vRight, NULL );
	Vector vecSrc = vecEye + vForward * 18.0f + vRight * 8.0f + Vector( 0, 0, -8 );
	CheckThrowPosition( pPlayer, vecEye, vecSrc );
	
	Vector vecThrow;
	pPlayer->GetVelocity( &vecThrow, NULL );
	vecThrow += vForward * 350 + Vector( 0, 0, 50 );
	SmokeGrenade_Create( vecSrc, vec3_angle, vecThrow, AngularImpulse(200,random->RandomInt(-600,600),0), pPlayer, SMOKE_GRENADE_TIMER );

	WeaponSound( WPN_DOUBLE );

	// Send the player 'attack' animation.
	pPlayer->SetAnimation(PLAYER_ATTACK1);

	m_bRedraw = true;

	m_iPrimaryAttacks++;
	gamestats->Event_WeaponFired( pPlayer, true, GetClassname() );
}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : *pPlayer - 
//-----------------------------------------------------------------------------
void CWeaponSmokeGrenade::RollGrenade( CBasePlayer *pPlayer )
{
	// BUGBUG: Hardcoded grenade width of 4 - better not change the model :)
	Vector vecSrc;
	pPlayer->CollisionProp()->NormalizedToWorldSpace( Vector( 0.5f, 0.5f, 0.0f ), &vecSrc );
	vecSrc.z += SMOKE_GRENADE_RADIUS;

	Vector vecFacing = pPlayer->BodyDirection2D( );
	// no up/down direction
	vecFacing.z = 0;
	VectorNormalize( vecFacing );
	trace_t tr;
	UTIL_TraceLine( vecSrc, vecSrc - Vector(0,0,16), MASK_PLAYERSOLID, pPlayer, COLLISION_GROUP_NONE, &tr );
	if ( tr.fraction != 1.0 )
	{
		// compute forward vec parallel to floor plane and roll grenade along that
		Vector tangent;
		CrossProduct( vecFacing, tr.plane.normal, tangent );
		CrossProduct( tr.plane.normal, tangent, vecFacing );
	}
	vecSrc += (vecFacing * 18.0);
	CheckThrowPosition( pPlayer, pPlayer->WorldSpaceCenter(), vecSrc );

	Vector vecThrow;
	pPlayer->GetVelocity( &vecThrow, NULL );
	vecThrow += vecFacing * 700;
	// put it on its side
	QAngle orientation(0,pPlayer->GetLocalAngles().y,-90);
	// roll it
	AngularImpulse rotSpeed(0,0,720);
	SmokeGrenade_Create( vecSrc, orientation, vecThrow, rotSpeed, pPlayer, SMOKE_GRENADE_TIMER );

	WeaponSound( SPECIAL1 );

	// Send the player 'attack' animation.
	pPlayer->SetAnimation(PLAYER_ATTACK1);

	m_bRedraw = true;

	m_iPrimaryAttacks++;
	gamestats->Event_WeaponFired( pPlayer, true, GetClassname() );
}

void CWeaponSmokeGrenade::GrenChangeVisible( void )
{
	CBasePlayer *pOwner = ToBasePlayer( GetOwner() );

	if (!pOwner)
		return;

	if ( !HasPrimaryAmmo() )
	{
		pOwner->ShowViewModel(false);	
	}
	else
	{
		pOwner->ShowViewModel(true);	
	}

}

void CWeaponSmokeGrenade::GrenSetVisible( void )
{
	CBasePlayer *pOwner = ToBasePlayer( GetOwner() );

	if (!pOwner)
		return;

	pOwner->ShowViewModel(true);	
}