Added original SDK code for Alien Swarm.

game/client/c_env_projectedtexture.h

@@ -0,0 +1,96 @@
+//========= Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef C_ENVPROJECTED_TEXTURE_H
+#define C_ENVPROJECTED_TEXTURE_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "c_baseentity.h"
+#include "basetypes.h"
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+class C_EnvProjectedTexture : public C_BaseEntity
+{
+	DECLARE_CLASS( C_EnvProjectedTexture, C_BaseEntity );
+public:
+	DECLARE_CLIENTCLASS();
+
+	void SetMaterial( IMaterial *pMaterial );
+	void SetLightColor( byte r, byte g, byte b, byte a );
+	void SetSize( float flSize );
+	void SetRotation( float flRotation );
+
+	virtual void OnDataChanged( DataUpdateType_t updateType );
+	void	ShutDownLightHandle( void );
+
+	virtual bool Simulate();
+
+	void	UpdateLight( void );
+
+	C_EnvProjectedTexture();
+	~C_EnvProjectedTexture();
+
+	static void SetVisibleBBoxMinHeight( float flVisibleBBoxMinHeight ) { m_flVisibleBBoxMinHeight = flVisibleBBoxMinHeight; }
+	static float GetVisibleBBoxMinHeight( void ) { return m_flVisibleBBoxMinHeight; }
+	static C_EnvProjectedTexture *Create( );
+
+private:
+
+	inline bool IsBBoxVisible( void );
+	bool IsBBoxVisible( Vector vecExtentsMin,
+						Vector vecExtentsMax );
+
+	ClientShadowHandle_t m_LightHandle;
+	bool m_bForceUpdate;
+
+	EHANDLE	m_hTargetEntity;
+
+	bool		m_bState;
+	bool		m_bAlwaysUpdate;
+	float		m_flLightFOV;
+	bool		m_bEnableShadows;
+	bool		m_bSimpleProjection;
+	bool		m_bLightOnlyTarget;
+	bool		m_bLightWorld;
+	bool		m_bCameraSpace;
+	float		m_flBrightnessScale;
+	color32		m_LightColor;
+	Vector		m_CurrentLinearFloatLightColor;
+	float		m_flCurrentLinearFloatLightAlpha;
+	float		m_flColorTransitionTime;
+	float		m_flAmbient;
+	float		m_flNearZ;
+	float		m_flFarZ;
+	char		m_SpotlightTextureName[ MAX_PATH ];
+	CTextureReference m_SpotlightTexture;
+	int			m_nSpotlightTextureFrame;
+	int			m_nShadowQuality;
+
+	// simple projection
+	IMaterial	*m_pMaterial;
+	float		m_flProjectionSize;
+	float		m_flRotation;
+
+	Vector	m_vecExtentsMin;
+	Vector	m_vecExtentsMax;
+
+	static float m_flVisibleBBoxMinHeight;
+};
+
+
+
+bool C_EnvProjectedTexture::IsBBoxVisible( void )
+{
+	return IsBBoxVisible( GetAbsOrigin() + m_vecExtentsMin, GetAbsOrigin() + m_vecExtentsMax );
+}
+
+#endif // C_ENV_PROJECTED_TEXTURE_H