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game/client/hl2mp/c_te_hl2mp_shotgun_shot.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#include "cbase.h"
+#include "c_basetempentity.h"
+#include <cliententitylist.h>
+#include "ammodef.h"
+#include "c_te_effect_dispatch.h"
+#include "shot_manipulator.h"
+
+class C_TEHL2MPFireBullets : public C_BaseTempEntity
+{
+public:
+	DECLARE_CLASS( C_TEHL2MPFireBullets, C_BaseTempEntity );
+	DECLARE_CLIENTCLASS();
+
+	virtual void	PostDataUpdate( DataUpdateType_t updateType );
+
+	void CreateEffects( void );
+
+public:
+	int		m_iPlayer;
+	Vector	m_vecOrigin;
+	Vector  m_vecDir;
+	int		m_iAmmoID;
+	int		m_iWeaponIndex;
+	int		m_iSeed;
+	float	m_flSpread;
+	int		m_iShots;
+	bool	m_bDoImpacts;
+	bool	m_bDoTracers;
+};
+
+class CTraceFilterSkipPlayerAndViewModelOnly : public CTraceFilter
+{
+public:
+	virtual bool ShouldHitEntity( IHandleEntity *pServerEntity, int contentsMask )
+	{
+		C_BaseEntity *pEntity = EntityFromEntityHandle( pServerEntity );
+		if( pEntity &&
+			( ( dynamic_cast<C_BaseViewModel *>( pEntity ) != NULL ) ||
+			( dynamic_cast<C_BasePlayer *>( pEntity ) != NULL ) ) )
+		{
+			return false;
+		}
+		else
+		{
+			return true;
+		}
+	}
+};
+
+void C_TEHL2MPFireBullets::CreateEffects( void )
+{
+	CAmmoDef*	pAmmoDef	= GetAmmoDef();
+
+	if ( pAmmoDef == NULL )
+		 return;
+
+	C_BaseEntity *pEnt = ClientEntityList().GetEnt( m_iPlayer );
+
+	if ( pEnt )
+	{
+		C_BasePlayer *pPlayer = dynamic_cast<C_BasePlayer *>(pEnt);
+
+		if ( pPlayer && pPlayer->GetActiveWeapon() )
+		{
+			C_BaseCombatWeapon *pWpn = dynamic_cast<C_BaseCombatWeapon *>( pPlayer->GetActiveWeapon() );
+
+			if ( pWpn )
+			{
+				int iSeed = m_iSeed;
+					
+				CShotManipulator Manipulator( m_vecDir );
+
+				for (int iShot = 0; iShot < m_iShots; iShot++)
+				{
+					RandomSeed( iSeed );	// init random system with this seed
+
+					// Don't run the biasing code for the player at the moment.
+					Vector vecDir = Manipulator.ApplySpread( Vector( m_flSpread, m_flSpread, m_flSpread ) );
+					Vector vecEnd = m_vecOrigin + vecDir * MAX_TRACE_LENGTH;
+					trace_t tr;
+					CTraceFilterSkipPlayerAndViewModelOnly traceFilter;
+
+					if( m_iShots > 1 && iShot % 2 )
+					{
+						// Half of the shotgun pellets are hulls that make it easier to hit targets with the shotgun.
+						UTIL_TraceHull( m_vecOrigin, vecEnd, Vector( -3, -3, -3 ), Vector( 3, 3, 3 ), MASK_SHOT, &traceFilter, &tr );
+					}
+					else
+					{
+						UTIL_TraceLine( m_vecOrigin, vecEnd, MASK_SHOT, &traceFilter, &tr);
+					}
+
+					if ( m_bDoTracers )
+					{
+						const char *pTracerName = pWpn->GetTracerType();
+
+						CEffectData data;
+						data.m_vStart = tr.startpos;
+						data.m_vOrigin = tr.endpos;
+						data.m_hEntity = pWpn->GetRefEHandle();
+						data.m_flScale = 0.0f;
+						data.m_fFlags |= TRACER_FLAG_USEATTACHMENT;
+						// Stomp the start, since it's not going to be used anyway
+						data.m_nAttachmentIndex = 1;
+
+						if ( pTracerName )
+						{
+							DispatchEffect( pTracerName, data );
+						}
+						else
+						{
+							DispatchEffect( "Tracer", data );
+						}
+					}
+					
+					if ( m_bDoImpacts )
+					{
+						pWpn->DoImpactEffect( tr, pAmmoDef->DamageType( m_iAmmoID ) );
+					}
+
+					iSeed++;
+				}
+			}
+		}
+	}
+
+}
+
+void C_TEHL2MPFireBullets::PostDataUpdate( DataUpdateType_t updateType )
+{
+	if ( m_bDoTracers || m_bDoImpacts )
+	{
+		CreateEffects();
+	}
+}
+
+
+IMPLEMENT_CLIENTCLASS_EVENT( C_TEHL2MPFireBullets, DT_TEHL2MPFireBullets, CTEHL2MPFireBullets );
+
+
+BEGIN_RECV_TABLE_NOBASE(C_TEHL2MPFireBullets, DT_TEHL2MPFireBullets )
+	RecvPropVector( RECVINFO( m_vecOrigin ) ),
+	RecvPropVector( RECVINFO( m_vecDir ) ),
+	RecvPropInt( RECVINFO( m_iAmmoID ) ),
+	RecvPropInt( RECVINFO( m_iSeed ) ),
+	RecvPropInt( RECVINFO( m_iShots ) ),
+	RecvPropInt( RECVINFO( m_iPlayer ) ),
+	RecvPropInt( RECVINFO( m_iWeaponIndex ) ),
+	RecvPropFloat( RECVINFO( m_flSpread ) ),
+	RecvPropBool( RECVINFO( m_bDoImpacts ) ),
+	RecvPropBool( RECVINFO( m_bDoTracers ) ),
+END_RECV_TABLE()
+
+