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game/client/hl2/c_weapon_crossbow.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#include "cbase.h"
+#include "model_types.h"
+#include "clienteffectprecachesystem.h"
+#include "fx.h"
+#include "c_te_effect_dispatch.h"
+#include "beamdraw.h"
+
+CLIENTEFFECT_REGISTER_BEGIN( PrecacheEffectCrossbow )
+CLIENTEFFECT_MATERIAL( "effects/muzzleflash1" )
+CLIENTEFFECT_REGISTER_END()
+
+//
+// Crossbow bolt
+//
+
+class C_CrossbowBolt : public C_BaseCombatCharacter
+{
+	DECLARE_CLASS( C_CrossbowBolt, C_BaseCombatCharacter );
+	DECLARE_CLIENTCLASS();
+public:
+	
+	C_CrossbowBolt( void );
+
+	virtual RenderGroup_t GetRenderGroup( void )
+	{
+		// We want to draw translucent bits as well as our main model
+		return RENDER_GROUP_TWOPASS;
+	}
+
+	virtual void	ClientThink( void );
+
+	virtual void	OnDataChanged( DataUpdateType_t updateType );
+	virtual int		DrawModel( int flags );
+
+private:
+
+	C_CrossbowBolt( const C_CrossbowBolt & ); // not defined, not accessible
+
+	Vector	m_vecLastOrigin;
+	bool	m_bUpdated;
+};
+
+IMPLEMENT_CLIENTCLASS_DT( C_CrossbowBolt, DT_CrossbowBolt, CCrossbowBolt )
+END_RECV_TABLE()
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+C_CrossbowBolt::C_CrossbowBolt( void )
+{
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : updateType - 
+//-----------------------------------------------------------------------------
+void C_CrossbowBolt::OnDataChanged( DataUpdateType_t updateType )
+{
+	BaseClass::OnDataChanged( updateType );
+
+	if ( updateType == DATA_UPDATE_CREATED )
+	{
+		m_bUpdated = false;
+		m_vecLastOrigin = GetAbsOrigin();
+		SetNextClientThink( CLIENT_THINK_ALWAYS );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : flags - 
+// Output : int
+//-----------------------------------------------------------------------------
+int C_CrossbowBolt::DrawModel( int flags )
+{
+	// See if we're drawing the motion blur
+	if ( flags & STUDIO_TRANSPARENCY )
+	{
+		float		color[3];
+		IMaterial	*pBlurMaterial = materials->FindMaterial( "effects/muzzleflash1", NULL, false );
+
+		Vector	vecDir = GetAbsOrigin() - m_vecLastOrigin;
+		float	speed = VectorNormalize( vecDir );
+		
+		speed = clamp( speed, 0, 32 );
+		
+		if ( speed > 0 )
+		{
+			float	stepSize = MIN( ( speed * 0.5f ), 4.0f );
+
+			Vector	spawnPos = GetAbsOrigin() + ( vecDir * 24.0f );
+			Vector	spawnStep = -vecDir * stepSize;
+
+			CMatRenderContextPtr pRenderContext( materials );
+			pRenderContext->Bind( pBlurMaterial );
+
+			float	alpha;
+
+			// Draw the motion blurred trail
+			for ( int i = 0; i < 20; i++ )
+			{
+				spawnPos += spawnStep;
+
+				alpha = RemapValClamped( i, 5, 11, 0.25f, 0.05f );
+
+				color[0] = color[1] = color[2] = alpha;
+
+				DrawHalo( pBlurMaterial, spawnPos, 3.0f, color );
+			}
+		}
+
+		if ( gpGlobals->frametime > 0.0f && !m_bUpdated)
+		{
+			m_bUpdated = true;
+			m_vecLastOrigin = GetAbsOrigin();
+		}
+
+		return 1;
+	}
+
+	// Draw the normal portion
+	return BaseClass::DrawModel( flags );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void C_CrossbowBolt::ClientThink( void )
+{
+	m_bUpdated = false;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : &data - 
+//-----------------------------------------------------------------------------
+void CrosshairLoadCallback( const CEffectData &data )
+{
+	IClientRenderable *pRenderable = data.GetRenderable( );
+	if ( !pRenderable )
+		return;
+	
+	Vector	position;
+	QAngle	angles;
+
+	// If we found the attachment, emit sparks there
+	if ( pRenderable->GetAttachment( data.m_nAttachmentIndex, position, angles ) )
+	{
+		FX_ElectricSpark( position, 1.0f, 1.0f, NULL );
+	}
+}
+
+DECLARE_CLIENT_EFFECT( "CrossbowLoad", CrosshairLoadCallback );