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engines/hpl1/engine/graphics/BillBoard.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*
+ * Copyright (C) 2006-2010 - Frictional Games
+ *
+ * This file is part of HPL1 Engine.
+ */
+
+#ifndef HPL_BILLBOARD_H
+#define HPL_BILLBOARD_H
+
+#include "RenderList.h"
+#include "hpl1/engine/graphics/GraphicsTypes.h"
+#include "hpl1/engine/graphics/Renderable.h"
+#include "hpl1/engine/math/MathTypes.h"
+#include "hpl1/engine/scene/Entity3D.h"
+#include "hpl1/engine/system/SystemTypes.h"
+
+namespace hpl {
+
+enum eBillboardType {
+	eBillboardType_Point,
+	eBillboardType_Axis,
+	eBillboardType_LastEnum
+};
+
+class cMaterialManager;
+class cResources;
+class cGraphics;
+class cMeshCreator;
+class cFileSearcher;
+class iLowLevelGraphics;
+class iMaterial;
+class iVertexBuffer;
+class iOcclusionQuery;
+
+//------------------------------------------
+
+kSaveData_ChildClass(iRenderable, cBillboard) {
+	kSaveData_ClassInit(cBillboard) public : tString msMaterial;
+
+	int mType;
+	cVector2f mvSize;
+	cVector3f mvAxis;
+	float mfForwardOffset;
+	cColor mColor;
+	float mfHaloAlpha;
+
+	bool mbIsHalo;
+	cVector3f mvHaloSourceSize;
+	bool mbHaloSourceIsParent;
+
+	virtual iSaveObject *CreateSaveObject(cSaveObjectHandler * apSaveObjectHandler, cGame * apGame);
+	virtual int GetSaveCreatePrio();
+};
+
+//------------------------------------------
+
+class cBillboard : public iRenderable {
+	typedef iRenderable super;
+
+public:
+	cBillboard(const tString asName, const cVector2f &avSize, cResources *apResources,
+			   cGraphics *apGraphics);
+	~cBillboard();
+
+	void SetMaterial(iMaterial *apMaterial);
+
+	void SetSize(const cVector2f &avSize);
+	cVector2f GetSize() { return mvSize; }
+
+	void SetType(eBillboardType aType);
+	eBillboardType GetType() { return mType; }
+
+	void SetAxis(const cVector3f &avAxis);
+	cVector3f GetAxis() { return mvAxis; }
+
+	void SetForwardOffset(float afOffset);
+	float GetForwardOffset() { return mfForwardOffset; }
+
+	void SetColor(const cColor &aColor);
+	const cColor &GetColor() { return mColor; }
+
+	void SetHaloAlpha(float afX);
+	float GetHaloAlpha() { return mfHaloAlpha; }
+
+	void LoadXMLProperties(const tString asFile);
+
+	/////////////////////////////////
+	// Halo stuff
+	void SetIsHalo(bool abX);
+	bool IsHalo() { return mbIsHalo; }
+
+	void SetHaloSourceSize(const cVector3f &avSize);
+	cVector3f GetHaloSourceSize() { return mvHaloSourceSize; }
+
+	void SetHaloSourceIsParent(bool abX);
+	bool GetHaloSourceIsParent() { return mbHaloSourceIsParent; }
+
+	iOcclusionQuery *GetQuery() { return mQueryObject.mpQuery; }
+	iOcclusionQuery *GetMaxQuery() { return mMaxQueryObject.mpQuery; }
+
+	/////////////////////////////////
+	// Entity implementation
+	tString GetEntityType() { return "Billboard"; }
+
+	bool IsVisible();
+	void SetVisible(bool abVisible) { SetRendered(abVisible); }
+
+	// Renderable implementations
+	iMaterial *GetMaterial() { return mpMaterial; }
+	iVertexBuffer *GetVertexBuffer() { return mpVtxBuffer; }
+
+	void UpdateGraphics(cCamera3D *apCamera, float afFrameTime, cRenderList *apRenderList);
+
+	bool IsShadowCaster() { return false; }
+
+	cBoundingVolume *GetBoundingVolume();
+
+	cMatrixf *GetModelMatrix(cCamera3D *apCamera);
+
+	int GetMatrixUpdateCount();
+
+	eRenderableType GetRenderType() { return eRenderableType_ParticleSystem; }
+
+	// SaveObject implementation
+	virtual iSaveData *CreateSaveData();
+	virtual void SaveToSaveData(iSaveData *apSaveData);
+	virtual void LoadFromSaveData(iSaveData *apSaveData);
+	virtual void SaveDataSetup(cSaveObjectHandler *apSaveObjectHandler, cGame *apGame);
+
+private:
+	eBillboardType ToType(const char *apString);
+
+	void UpdateSourceBufferSize();
+
+	cMaterialManager *mpMaterialManager;
+	cFileSearcher *mpFileSearcher;
+	iLowLevelGraphics *mpLowLevelGraphics;
+	cMeshCreator *mpMeshCreator;
+
+	iMaterial *mpMaterial;
+	iVertexBuffer *mpVtxBuffer;
+
+	iVertexBuffer *mpHaloSourceBuffer;
+
+	cMatrixf m_mtxTempTransform;
+
+	eBillboardType mType;
+	cVector2f mvSize;
+	cVector3f mvAxis;
+
+	int mlLastRenderCount;
+
+	bool mbIsHalo;
+	cVector3f mvHaloSourceSize;
+	bool mbHaloSourceIsParent;
+	cOcclusionQueryObject mQueryObject;
+	cOcclusionQueryObject mMaxQueryObject;
+
+	float mfForwardOffset;
+	cColor mColor;
+	float mfHaloAlpha;
+};
+
+} // namespace hpl
+
+#endif // HPL_BILLBOARD_H