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

#include "cbase.h"
#include "NPCevent.h"
#include "basecombatcharacter.h"
#include "AI_BaseNPC.h"
#include "player.h"
#include "game.h"
#include "in_buttons.h"
//#include "grenade_ar2.h"
#include "AI_Memory.h"
#include "soundent.h"
#include "rumble_shared.h"
#include "gamestats.h"
#include "weapon_m4.h"

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

IMPLEMENT_SERVERCLASS_ST(CWeaponM4, DT_WeaponM4)
END_SEND_TABLE()

LINK_ENTITY_TO_CLASS( weapon_m4, CWeaponM4 );
PRECACHE_WEAPON_REGISTER(weapon_m4);

BEGIN_DATADESC( CWeaponM4 )

	DEFINE_FIELD( m_vecTossVelocity, FIELD_VECTOR ),
	DEFINE_FIELD( m_flNextGrenadeCheck, FIELD_TIME ),
	//DEFINE_FIELD( m_bSilencerOn,	FIELD_BOOLEAN ),

END_DATADESC()

acttable_t	CWeaponM4::m_acttable[] = 
{
	{ ACT_HL2MP_IDLE, ACT_HL2MP_IDLE_AR2, false },	// Light Kill : MP animstate for singleplayer
	{ ACT_HL2MP_RUN, ACT_HL2MP_RUN_AR2, false },
	{ ACT_HL2MP_IDLE_CROUCH, ACT_HL2MP_IDLE_CROUCH_AR2, false },
	{ ACT_HL2MP_WALK_CROUCH, ACT_HL2MP_WALK_CROUCH_AR2, false },
	{ ACT_HL2MP_GESTURE_RANGE_ATTACK, ACT_HL2MP_GESTURE_RANGE_ATTACK_AR2, false },
	{ ACT_HL2MP_GESTURE_RELOAD, ACT_GESTURE_RELOAD_SMG1, false },
	{ ACT_HL2MP_JUMP, ACT_HL2MP_JUMP_AR2, false },
	//{ ACT_RANGE_ATTACK1,                ACT_RANGE_ATTACK_AR2,                false },		//END

	{ ACT_RANGE_ATTACK1, ACT_RANGE_ATTACK_AR2, true },
	{ ACT_RELOAD, ACT_RELOAD_SMG1, true },		// FIXME: hook to AR2 unique
	{ ACT_IDLE, ACT_IDLE_SMG1, true },		// FIXME: hook to AR2 unique
	{ ACT_IDLE_ANGRY, ACT_IDLE_ANGRY_SMG1, true },		// FIXME: hook to AR2 unique

	{ ACT_WALK, ACT_WALK_RIFLE, true },

	// Readiness activities (not aiming)
	{ ACT_IDLE_RELAXED, ACT_IDLE_SMG1_RELAXED, false },//never aims
	{ ACT_IDLE_STIMULATED, ACT_IDLE_SMG1_STIMULATED, false },
	{ ACT_IDLE_AGITATED, ACT_IDLE_ANGRY_SMG1, false },//always aims

	{ ACT_WALK_RELAXED, ACT_WALK_RIFLE_RELAXED, false },//never aims
	{ ACT_WALK_STIMULATED, ACT_WALK_RIFLE_STIMULATED, false },
	{ ACT_WALK_AGITATED, ACT_WALK_AIM_RIFLE, false },//always aims

	{ ACT_RUN_RELAXED, ACT_RUN_RIFLE_RELAXED, false },//never aims
	{ ACT_RUN_STIMULATED, ACT_RUN_RIFLE_STIMULATED, false },
	{ ACT_RUN_AGITATED, ACT_RUN_AIM_RIFLE, false },//always aims

	// Readiness activities (aiming)
	{ ACT_IDLE_AIM_RELAXED, ACT_IDLE_SMG1_RELAXED, false },//never aims	
	{ ACT_IDLE_AIM_STIMULATED, ACT_IDLE_AIM_RIFLE_STIMULATED, false },
	{ ACT_IDLE_AIM_AGITATED, ACT_IDLE_ANGRY_SMG1, false },//always aims

	{ ACT_WALK_AIM_RELAXED, ACT_WALK_RIFLE_RELAXED, false },//never aims
	{ ACT_WALK_AIM_STIMULATED, ACT_WALK_AIM_RIFLE_STIMULATED, false },
	{ ACT_WALK_AIM_AGITATED, ACT_WALK_AIM_RIFLE, false },//always aims

	{ ACT_RUN_AIM_RELAXED, ACT_RUN_RIFLE_RELAXED, false },//never aims
	{ ACT_RUN_AIM_STIMULATED, ACT_RUN_AIM_RIFLE_STIMULATED, false },
	{ ACT_RUN_AIM_AGITATED, ACT_RUN_AIM_RIFLE, false },//always aims
	//End readiness activities

	{ ACT_WALK_AIM, ACT_WALK_AIM_RIFLE, true },
	{ ACT_WALK_CROUCH, ACT_WALK_CROUCH_RIFLE, true },
	{ ACT_WALK_CROUCH_AIM, ACT_WALK_CROUCH_AIM_RIFLE, true },
	{ ACT_RUN, ACT_RUN_RIFLE, true },
	{ ACT_RUN_AIM, ACT_RUN_AIM_RIFLE, true },
	{ ACT_RUN_CROUCH, ACT_RUN_CROUCH_RIFLE, true },
	{ ACT_RUN_CROUCH_AIM, ACT_RUN_CROUCH_AIM_RIFLE, true },
	{ ACT_GESTURE_RANGE_ATTACK1, ACT_GESTURE_RANGE_ATTACK_AR2, false },
	{ ACT_COVER_LOW, ACT_COVER_SMG1_LOW, false },		// FIXME: hook to AR2 unique
	{ ACT_RANGE_AIM_LOW, ACT_RANGE_AIM_AR2_LOW, false },
	{ ACT_RANGE_ATTACK1_LOW, ACT_RANGE_ATTACK_SMG1_LOW, true },		// FIXME: hook to AR2 unique
	{ ACT_RELOAD_LOW, ACT_RELOAD_SMG1_LOW, false },
	{ ACT_GESTURE_RELOAD, ACT_GESTURE_RELOAD_SMG1, true },
	//	{ ACT_RANGE_ATTACK2, ACT_RANGE_ATTACK_AR2_GRENADE, true },
};

IMPLEMENT_ACTTABLE(CWeaponM4);

//=========================================================
CWeaponM4::CWeaponM4( )
{
	m_fMinRange1		= 0;// No minimum range. 
	m_fMaxRange1		= 1024;
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CWeaponM4::Precache( void )
{
	CBaseEntity::PrecacheModel(GetWpnData().szSilentModel);
	BaseClass::Precache();
}
//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CWeaponM4::FireNPCPrimaryAttack( CBaseCombatCharacter *pOperator, Vector &vecShootOrigin, Vector &vecShootDir )
{
	// FIXME: use the returned number of bullets to account for >10hz firerate
	WeaponSoundRealtime( SINGLE_NPC );

	CSoundEnt::InsertSound( SOUND_COMBAT|SOUND_CONTEXT_GUNFIRE, pOperator->GetAbsOrigin(), SOUNDENT_VOLUME_MACHINEGUN, 0.2, pOperator, SOUNDENT_CHANNEL_WEAPON, pOperator->GetEnemy() );
	pOperator->FireBullets(1, vecShootOrigin, vecShootDir, pOperator->GetAttackSpread(this),
		MAX_TRACE_LENGTH, m_iPrimaryAmmoType, 1, entindex(), 0 );

	pOperator->DoMuzzleFlash();
	m_iClip1 = m_iClip1 - 1;
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CWeaponM4::Operator_ForceNPCFire( CBaseCombatCharacter *pOperator, bool bSecondary )
{
	// Ensure we have enough rounds in the clip
	m_iClip1++;

	Vector vecShootOrigin, vecShootDir;
	QAngle	angShootDir;
	GetAttachment( LookupAttachment( "muzzle" ), vecShootOrigin, angShootDir );
	AngleVectors( angShootDir, &vecShootDir );
	FireNPCPrimaryAttack( pOperator, vecShootOrigin, vecShootDir );
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void CWeaponM4::Operator_HandleAnimEvent( animevent_t *pEvent, CBaseCombatCharacter *pOperator )
{
	switch( pEvent->event )
	{
	case EVENT_WEAPON_SMG1:
		{
			Vector vecShootOrigin, vecShootDir;
			QAngle angDiscard;

			// Support old style attachment point firing
			if ((pEvent->options == NULL) || (pEvent->options[0] == '\0') || (!pOperator->GetAttachment(pEvent->options, vecShootOrigin, angDiscard)))
			{
				vecShootOrigin = pOperator->Weapon_ShootPosition();
			}

			CAI_BaseNPC *npc = pOperator->MyNPCPointer();
			ASSERT( npc != NULL );
			vecShootDir = npc->GetActualShootTrajectory( vecShootOrigin );

			FireNPCPrimaryAttack( pOperator, vecShootOrigin, vecShootDir );
		}
		break;

	default:
		BaseClass::Operator_HandleAnimEvent( pEvent, pOperator );
		break;
	}
}

void CWeaponM4::SecondaryAttack(void)
{

}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : flDot - 
//			flDist - 
// Output : int
//-----------------------------------------------------------------------------
int CWeaponM4::WeaponRangeAttack2Condition( float flDot, float flDist )
{
	CAI_BaseNPC *npcOwner = GetOwner()->MyNPCPointer();

	return COND_NONE;


	// -----------------------
	// If moving, don't check.
	// -----------------------
	if ( npcOwner->IsMoving())
		return COND_NONE;

	CBaseEntity *pEnemy = npcOwner->GetEnemy();

	if (!pEnemy)
		return COND_NONE;

	Vector vecEnemyLKP = npcOwner->GetEnemyLKP();
	if ( !( pEnemy->GetFlags() & FL_ONGROUND ) && pEnemy->GetWaterLevel() == 0 && vecEnemyLKP.z > (GetAbsOrigin().z + WorldAlignMaxs().z) )
	{
		//!!!BUGBUG - we should make this check movetype and make sure it isn't FLY? Players who jump a lot are unlikely to 
		// be grenaded.
		// don't throw grenades at anything that isn't on the ground!
		return COND_NONE;
	}
	
	// --------------------------------------
	//  Get target vector
	// --------------------------------------
	Vector vecTarget;
	if (random->RandomInt(0,1))
	{
		// magically know where they are
		vecTarget = pEnemy->WorldSpaceCenter();
	}
	else
	{
		// toss it to where you last saw them
		vecTarget = vecEnemyLKP;
	}
	// vecTarget = m_vecEnemyLKP + (pEnemy->BodyTarget( GetLocalOrigin() ) - pEnemy->GetLocalOrigin());
	// estimate position
	// vecTarget = vecTarget + pEnemy->m_vecVelocity * 2;


	if ( ( vecTarget - npcOwner->GetLocalOrigin() ).Length2D() <= 256 )
	{
		// crap, I don't want to blow myself up
		m_flNextGrenadeCheck = gpGlobals->curtime + 1; // one full second.
		return (COND_NONE);
	}

	// ---------------------------------------------------------------------
	// Are any friendlies near the intended grenade impact area?
	// ---------------------------------------------------------------------
	CBaseEntity *pTarget = NULL;

	while ( ( pTarget = gEntList.FindEntityInSphere( pTarget, vecTarget, 256 ) ) != NULL )
	{
		//Check to see if the default relationship is hatred, and if so intensify that
		if ( npcOwner->IRelationType( pTarget ) == D_LI )
		{
			// crap, I might blow my own guy up. Don't throw a grenade and don't check again for a while.
			m_flNextGrenadeCheck = gpGlobals->curtime + 1; // one full second.
			return (COND_WEAPON_BLOCKED_BY_FRIEND);
		}
	}

	// ---------------------------------------------------------------------
	// Check that throw is legal and clear
	// ---------------------------------------------------------------------
	// FIXME: speed is based on difficulty...

	Vector vecToss = VecCheckThrow( this, npcOwner->GetLocalOrigin() + Vector(0,0,60), vecTarget, 600.0, 0.5 );
	if ( vecToss != vec3_origin )
	{
		m_vecTossVelocity = vecToss;

		// don't check again for a while.
		// JAY: HL1 keeps checking - test?
		//m_flNextGrenadeCheck = gpGlobals->curtime;
		m_flNextGrenadeCheck = gpGlobals->curtime + 0.3; // 1/3 second.
		return COND_CAN_RANGE_ATTACK2;
	}
	else
	{
		// don't check again for a while.
		m_flNextGrenadeCheck = gpGlobals->curtime + 1; // one full second.
		return COND_WEAPON_SIGHT_OCCLUDED;
	}
}

const char * CWeaponM4::GetWorldModel(void) const
{
	if (m_bSilenced)
	{
		return (GetWpnData().szSilentModel);
	}
	else
	{
		return BaseClass::GetWorldModel();
	}
}

void CWeaponM4::SetWeaponModelIndex(const char *pName)
{
	m_iWorldModelIndex = modelinfo->GetModelIndex(pName);
}

//-----------------------------------------------------------------------------
const WeaponProficiencyInfo_t *CWeaponM4::GetProficiencyValues()
{
	static WeaponProficiencyInfo_t proficiencyTable[] =
	{
		{ 8.0,		0.75	},
		{ 6.00,		0.75	},
		{ 10.0/2.0, 0.75	},
		{ 5.0/3.0,	0.75	},
		{ 2.00,		1.0		},
	};

	COMPILE_TIME_ASSERT( ARRAYSIZE(proficiencyTable) == WEAPON_PROFICIENCY_PERFECT + 1);

	return proficiencyTable;
}