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engines/hpl1/engine/scene/Light3DSpot.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_LIGHT3D_SPOT_H
+#define HPL_LIGHT3D_SPOT_H
+
+#include "hpl1/engine/scene/Light3D.h"
+
+namespace hpl {
+
+class cResources;
+class iTexture;
+class cFrustum;
+
+//------------------------------------------
+
+kSaveData_ChildClass(iLight3D, cLight3DSpot) {
+	kSaveData_ClassInit(cLight3DSpot) public : tString msTexture;
+
+	float mfFOV;
+	float mfAspect;
+	float mfNearClipPlane;
+
+	virtual iSaveObject *CreateSaveObject(cSaveObjectHandler * apSaveObjectHandler, cGame * apGame);
+	virtual int GetSaveCreatePrio();
+};
+
+//------------------------------------------
+
+class cLight3DSpot : public iLight3D {
+	typedef iLight3D super;
+
+public:
+	cLight3DSpot(tString asName, cResources *apResources);
+	~cLight3DSpot();
+
+	const cMatrixf &GetViewMatrix();
+	const cMatrixf &GetProjectionMatrix();
+	const cMatrixf &GetViewProjMatrix();
+
+	void SetTexture(iTexture *apTexture);
+	iTexture *GetTexture();
+
+	void SetFOV(float afAngle) {
+		mfFOV = afAngle;
+		mbProjectionUpdated = true;
+	}
+	float GetFOV() { return mfFOV; }
+
+	void SetAspect(float afAngle) {
+		mfAspect = afAngle;
+		mbProjectionUpdated = true;
+	}
+	float GetAspect() { return mfAspect; }
+
+	void SetNearClipPlane(float afX) {
+		mfNearClipPlane = afX;
+		mbProjectionUpdated = true;
+	}
+	float GetNearClipPlane() { return mfNearClipPlane; }
+
+	void SetFarAttenuation(float afX);
+	void SetNearAttenuation(float afX);
+
+	cFrustum *GetFrustum();
+
+	bool CollidesWithBV(cBoundingVolume *apBV);
+
+	// SaveObject implementation
+	virtual iSaveData *CreateSaveData();
+	virtual void SaveToSaveData(iSaveData *apSaveData);
+	virtual void LoadFromSaveData(iSaveData *apSaveData);
+	virtual void SaveDataSetup(cSaveObjectHandler *apSaveObjectHandler, cGame *apGame);
+
+private:
+	cSectorVisibilityContainer *CreateSectorVisibility();
+	void ExtraXMLProperties(TiXmlElement *apMainElem);
+	void UpdateBoundingVolume();
+	bool CreateClipRect(cRect2l &aCliprect, cRenderSettings *apRenderSettings, iLowLevelGraphics *apLowLevelGraphics);
+
+	cMatrixf m_mtxProjection;
+	cMatrixf m_mtxViewProj;
+	cMatrixf m_mtxView;
+
+	cFrustum *mpFrustum;
+
+	iTexture *mpTexture;
+
+	float mfFOV;
+	float mfAspect;
+	float mfNearClipPlane;
+
+	bool mbProjectionUpdated;
+	bool mbViewProjUpdated;
+	bool mbFrustumUpdated;
+
+	int mlViewProjMatrixCount;
+	int mlViewMatrixCount;
+	int mlFrustumMatrixCount;
+};
+
+} // namespace hpl
+
+#endif // HPL_LIGHT3D_SPOT_H