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hammer/sprite.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $Workfile:     $
+// $Date:         $
+// $NoKeywords: $
+//===========================================================================//
+
+#ifndef SPRITE_H
+#define SPRITE_H
+#pragma once
+
+#include "mathlib/mathlib.h"
+#include "materialsystem/imaterialsystem.h"
+
+class CTexture;
+class CMaterial;
+class IMaterialVar;
+class CRender;
+class CRender3D;
+
+
+// must match definition in modelgen.h
+enum synctype_t
+{
+	ST_SYNC=0, 
+	ST_RAND 
+};
+
+#define SPR_VP_PARALLEL_UPRIGHT		0
+#define SPR_FACING_UPRIGHT			1
+#define SPR_VP_PARALLEL				2
+#define SPR_ORIENTED				3
+#define SPR_VP_PARALLEL_ORIENTED	4
+
+#define SPR_NORMAL					0
+#define SPR_ADDITIVE				1
+#define SPR_INDEXALPHA				2
+#define SPR_ALPHATEST				3
+
+
+//-----------------------------------------------------------------------------
+// From engine\GL_MODEL.H:
+//-----------------------------------------------------------------------------
+
+class CSpriteModel
+{
+	public:
+
+		CSpriteModel(void);
+		~CSpriteModel(void);
+			
+		bool LoadSprite(const char *pszSpritePath);
+
+		int GetFrameCount(void);
+		int GetWidth() const;
+		int GetHeight() const;
+		int GetType() const;
+
+		void Bind( CRender* pRender, int frame );
+		void GetRect( float& left, float& up,  float& right, float& down ) const;
+		void SetRenderMode( const int mode );
+
+		void SetMaterialPrimitiveType( const MaterialPrimitiveType_t type );
+		void SetOrigin( const Vector &v );
+		void GetOrigin( Vector &v );
+		void SetAngles( const QAngle& pfAngles );
+		void SetScale( const float fScale );
+		void SetInvert( const bool b );
+		inline void SetTextureExtent( Vector2D TexUL, Vector2D TexLR ) { m_TexUL = TexUL; m_TexLR = TexLR; }
+		inline void SetExtent( Vector2D UL, Vector2D LR ) { m_UL = UL; m_LR = LR; }
+		void DrawSprite3D( CRender3D *pRender, unsigned char color[3] );
+
+	protected:
+		void GetSpriteAxes(QAngle& Angles, int type, Vector& forward, Vector& right, Vector& up, Vector& ViewUp, Vector& ViewRight, Vector& ViewForward);
+
+		Vector			m_Origin;
+		QAngle			m_Angles;
+		float			m_fScale;
+		MaterialPrimitiveType_t	m_MaterialPrimitiveType;
+
+		CMaterial*		m_pMaterial;
+		IMaterialVar*	m_pFrameVar;
+		IMaterialVar*	m_pRenderModeVar;
+		int				m_NumFrames;
+		int				m_Type;
+		int				m_Width;
+		int				m_Height;
+		bool			m_bInvert;
+
+		Vector2D		m_TexUL, m_TexLR;
+		Vector2D		m_UL, m_LR;
+};
+
+
+//-----------------------------------------------------------------------------
+// inline methods
+//-----------------------------------------------------------------------------
+
+inline int CSpriteModel::GetWidth() const
+{
+	return m_Width;
+}
+
+inline int CSpriteModel::GetHeight() const
+{
+	return m_Height;
+}
+
+inline int CSpriteModel::GetType() const
+{
+	return m_Type;
+}
+
+inline void CSpriteModel::GetRect( float& left, float& up, float& right, float& down ) const
+{
+	left = m_UL.x;
+	right = m_LR.x;
+	up = m_UL.y;
+	down = m_LR.y;
+}
+
+//-----------------------------------------------------------------------------
+// Sprite cache
+//-----------------------------------------------------------------------------
+
+struct SpriteCache_t
+{
+	CSpriteModel *pSprite;
+	char *pszPath;
+	int nRefCount;
+};
+
+
+//-----------------------------------------------------------------------------
+// Purpose:
+//-----------------------------------------------------------------------------
+#define SPRITE_CACHE_SIZE	1024
+
+class CSpriteCache
+{
+	public:
+
+		static CSpriteModel *CreateSprite(const char *pszSpritePath);
+		static void AddRef(CSpriteModel *pSprite);
+		static void Release(CSpriteModel *pSprite);
+
+	protected:
+
+		static bool AddSprite(CSpriteModel *pSprite, const char *pszSpritePath);
+		static void RemoveSprite(CSpriteModel *pSprite);
+
+		static SpriteCache_t m_Cache[SPRITE_CACHE_SIZE];
+		static int m_nItems;
+};
+
+
+#endif // SPRITE_H
+