weapon_brickbat.cpp

hl2 source code. Do not use it illegal.

//=========== (C) Copyright 2000 Valve, L.L.C. All rights reserved. ===========
//
// The copyright to the contents herein is the property of Valve, L.L.C.
// The contents may be used and/or copied only with the written permission of
// Valve, L.L.C., or in accordance with the terms and conditions stipulated in
// the agreement/contract under which the contents have been supplied.
//
// Purpose: This is the brickbat weapon
//
// $Workfile:     $
// $Date:         $
// $NoKeywords: $
//=============================================================================

#include "cbase.h"
#include "NPCEvent.h"
#include "basehlcombatweapon.h"
#include "basecombatcharacter.h"
#include "AI_BaseNPC.h"
#include "AI_Memory.h"
#include "player.h"
#include "gamerules.h"		// For g_pGameRules
#include "weapon_brickbat.h"
#include "grenade_brickbat.h"
#include "ammodef.h"
#include "in_buttons.h"
#include "game.h"			
#include "IEffects.h"
#include "vstdlib/random.h"
#include "baseviewmodel.h"
#include "movevars_shared.h"

extern ConVar sk_npc_dmg_brickbat;
extern ConVar sk_plr_dmg_brickbat;

struct BrickbatAmmo_s
{
	const char	*m_sClassName;
	int			m_nAmmoType;
	int			m_nMaxCarry;
	const char	*m_sViewModel;
	const char	*m_sWorldModel;
};

BrickbatAmmo_s	BrickBatAmmoArray[NUM_BRICKBAT_AMMO_TYPES] =
{
	{ "grenade_rockbb",			BRICKBAT_ROCK,			5,	"models/weapons/v_bb_bottle.mdl",		"models/props_junk/Rock001a.mdl" },
	{ "grenade_beerbottle",		BRICKBAT_BOTTLE,		3,	"models/weapons/v_bb_bottle.mdl",		"models/weapons/w_bb_bottle.mdl" },
	{ "grenade_crematorhead",	BRICKBAT_CREMATORHEAD,	1,	"models/weapons/v_bb_crematorhead.mdl",	"models/cremator_head.mdl" },
};

IMPLEMENT_SERVERCLASS_ST(CWeaponBrickbat, DT_WeaponBrickbat)
END_SEND_TABLE()

//LINK_ENTITY_TO_CLASS( weapon_brickbat, CWeaponBrickbat );
//PRECACHE_WEAPON_REGISTER(weapon_brickbat);

acttable_t	CWeaponBrickbat::m_acttable[] = 
{
	{ ACT_RANGE_ATTACK1, ACT_RANGE_ATTACK_THROW, true },
};
IMPLEMENT_ACTTABLE(CWeaponBrickbat);



BEGIN_DATADESC( CWeaponBrickbat )

	DEFINE_FIELD( CWeaponBrickbat, m_bNeedDraw, FIELD_BOOLEAN ),
	DEFINE_FIELD( CWeaponBrickbat, m_bNeedThrow, FIELD_BOOLEAN ),
	DEFINE_FIELD( CWeaponBrickbat, m_iThrowBits, FIELD_INTEGER ),
	DEFINE_FIELD( CWeaponBrickbat, m_fNextThrowCheck, FIELD_TIME ),
	DEFINE_FIELD( CWeaponBrickbat, m_vecTossVelocity, FIELD_VECTOR ),
	DEFINE_ARRAY( CWeaponBrickbat, m_nAmmoCount, FIELD_INTEGER, NUM_BRICKBAT_AMMO_TYPES ),
	DEFINE_KEYFIELD( CWeaponBrickbat, m_iCurrentAmmoType, FIELD_INTEGER, "BrickbatType" ),

	// Function Pointers
	DEFINE_FUNCTION( CWeaponBrickbat, BrickbatTouch ),

END_DATADESC()

//------------------------------------------------------------------------------
// Purpose :
// Input   :
// Output  :
//------------------------------------------------------------------------------
void CWeaponBrickbat::Precache( void )
{
	for (int i=0;i<ARRAYSIZE(BrickBatAmmoArray);i++)
	{
		engine->PrecacheModel(BrickBatAmmoArray[i].m_sWorldModel);
		engine->PrecacheModel(BrickBatAmmoArray[i].m_sViewModel);
	}

	UTIL_PrecacheOther("grenade_molotov");

	BaseClass::Precache();
}

void CWeaponBrickbat::Spawn( void )
{
	m_bNeedDraw		= true;
	m_bNeedThrow	= false;

	for (int i=0;i<NUM_BRICKBAT_AMMO_TYPES;i++)
	{
		m_nAmmoCount[i] = 0;
	}
	// Call base class first
	BaseClass::Spawn();

}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
const char *CWeaponBrickbat::GetViewModel( int viewmodelindex /*=0*/ )
{
	return BrickBatAmmoArray[m_iCurrentAmmoType].m_sViewModel;
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
const char *CWeaponBrickbat::GetWorldModel( void )
{
	return BrickBatAmmoArray[m_iCurrentAmmoType].m_sWorldModel;
}

//------------------------------------------------------------------------------
// Purpose :
// Input   :
// Output  :
//------------------------------------------------------------------------------
bool CWeaponBrickbat::Deploy( void )
{
	SetModel( GetViewModel() );
	m_bNeedDraw		= false;
	m_bNeedThrow	= false;
	return DefaultDeploy( (char*)GetViewModel(), (char*)GetWorldModel(), ACT_VM_DRAW, (char*)GetAnimPrefix() );
}

//------------------------------------------------------------------------------
// Purpose : Override to use brickbats pickup touch function
// Input   :
// Output  :
//------------------------------------------------------------------------------
void CWeaponBrickbat::SetPickupTouch( void )
{
	SetTouch( BrickbatTouch );
}

//------------------------------------------------------------------------------
// Purpose : Override base class so can be picked up with physics gun
// Input   :
// Output  :
//------------------------------------------------------------------------------
void CWeaponBrickbat::SetObjectCollisionBox( void )
{
	BaseClass::BaseClass::SetObjectCollisionBox();
}

//-----------------------------------------------------------------------------
// Purpose: Override so give correct ammo
// Input  : pOther - the entity that touched me
// Output :
//-----------------------------------------------------------------------------
void CWeaponBrickbat::BrickbatTouch( CBaseEntity *pOther )
{
	// ---------------------------------------------------
	//  First give weapon to touching entity if allowed
	//  Skip ammo given portion by setting clips to zero
	//  and handle ammo giving here
	// ---------------------------------------------------
	BaseClass::DefaultTouch(pOther);

	//FIXME: This ammo handling code is a bit bogus, need a real solution if brickbats are going to live

	/*
	// ----------------------------------------------------
	//  Give brickbat ammo if touching client
	// ----------------------------------------------------
	if (pOther->GetFlags() & FL_CLIENT)
	{
		CBaseCombatCharacter* pBCC = ToBaseCombatCharacter( pOther );

		// Exit if game rules say I can't have any more of this ammo type.
		if ( g_pGameRules->CanHaveAmmo( pBCC, m_iPrimaryAmmoType ) == false )
			return;

		// ------------------------------------------------
		//  If already owned weapon of this type remove me
		// ------------------------------------------------
		CWeaponBrickbat* oldWeapon = (CWeaponBrickbat*)pBCC->Weapon_OwnsThisType( GetClassname() );
		
		// Remove physics object if is one
		VPhysicsDestroyObject();

		if ( ( oldWeapon != NULL ) && ( oldWeapon != this ) )
		{
			// Only pick up if not at max ammo amount
			if (oldWeapon->m_nAmmoCount[m_iCurrentAmmoType] < BrickBatAmmoArray[m_iCurrentAmmoType].m_nMaxCarry)
			{
				oldWeapon->m_nAmmoCount[m_iCurrentAmmoType]++;
				pBCC->GiveAmmo( 1, oldWeapon->m_iPrimaryAmmoType ); 
				UTIL_Remove( this );
			}
		}
		else
		{
			// Only pick up if not at max ammo amount
			if (m_nAmmoCount[m_iCurrentAmmoType] < BrickBatAmmoArray[m_iCurrentAmmoType].m_nMaxCarry)
			{
				m_nAmmoCount[m_iCurrentAmmoType]++;
				pBCC->GiveAmmo( 1, m_iPrimaryAmmoType ); 

				SetThink (NULL);
			}
		}

		// -----------------------------------------------------
		// Switch to this weapon if the only weapon I own
		// -----------------------------------------------------
		if (!pBCC->GetActiveWeapon() && pBCC->GetActiveWeapon() != this)
		{
			pBCC->Weapon_Switch(oldWeapon);
		}
	}
	*/
}


//-----------------------------------------------------------------------------
// Purpose: Gets event from anim stream and throws the object
// Input  :
// Output :
//-----------------------------------------------------------------------------
void CWeaponBrickbat::Operator_HandleAnimEvent( animevent_t *pEvent, CBaseCombatCharacter *pOperator )
{
	switch( pEvent->event )
	{
		case EVENT_WEAPON_THROW:
		{
			CAI_BaseNPC *pNPC = GetOwner()->MyNPCPointer();

			if (!pNPC)
			{
				return;
			}

			Vector vec_target = pNPC->GetEnemyLKP();

			// -----------------------------------------------------
			//  Get position of throw
			// -----------------------------------------------------
			// If owner has a hand, set position to the hand bone position
			Vector launchPos;
			int iBIndex = pNPC->LookupBone("Bip01 R Hand");
			if (iBIndex != -1) {
				Vector origin;
				QAngle angles;
				pNPC->GetBonePosition( iBIndex, launchPos, angles);
			}
			// Otherwise just set to in front of the owner
			else {
				Vector vFacingDir = pNPC->BodyDirection2D( );
				vFacingDir = vFacingDir * 60.0; 
				launchPos = pNPC->GetLocalOrigin()+vFacingDir;
			}

			ThrowBrickbat( launchPos, m_vecTossVelocity, sk_npc_dmg_brickbat.GetFloat());

			// Drop the weapon and remove as no more ammo
			pNPC->Weapon_Drop( this );
			UTIL_Remove( this );
		}
		break;
		default:
			BaseClass::Operator_HandleAnimEvent( pEvent, pOperator );
			break;
	}
}


//-----------------------------------------------------------------------------
// Purpose:
// Input  :
// Output :
//-----------------------------------------------------------------------------
bool CWeaponBrickbat::ObjectInWay( void )
{
	CBaseCombatCharacter *pOwner  = GetOwner();
	if (!pOwner)
	{
		return false;
	}

	Vector vecSrc	 = pOwner->Weapon_ShootPosition( );
	Vector vecAiming = pOwner->BodyDirection2D( );

	trace_t tr;

	Vector	vecEnd = vecSrc + (vecAiming * 32);
	UTIL_TraceLine( vecSrc, vecEnd, MASK_SOLID, pOwner, COLLISION_GROUP_NONE, &tr );
	
	if (tr.fraction < 1.0)
	{
		// Don't block on a living creature
		if (tr.m_pEnt)
		{
			CBaseEntity *pEntity = tr.m_pEnt;
			CBaseCombatCharacter *pBCC		= ToBaseCombatCharacter( pEntity );
			if (pBCC)
			{
				return false;
			}
		}
		return true;
	}
	else
	{
		return false;
	}
}

//-----------------------------------------------------------------------------
// Purpose: Override to allow throw w/o LOS
// Input  :
// Output :
//-----------------------------------------------------------------------------
bool CWeaponBrickbat::WeaponLOSCondition(const Vector &ownerPos, const Vector &targetPos,bool bSetConditions)
{
	// <<TODO>> should test if can throw from present location here...
	return true;
}

//-----------------------------------------------------------------------------
// Purpose: Override to check throw
// Input  :