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engines/hpl1/engine/math/BoundingVolume.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_BOUNDING_VOLUME_H
+#define HPL_BOUNDING_VOLUME_H
+
+#include "hpl1/engine/graphics/GraphicsTypes.h"
+#include "hpl1/engine/math/MathTypes.h"
+#include "hpl1/engine/system/SerializeClass.h"
+#include "hpl1/engine/system/SystemTypes.h"
+
+namespace hpl {
+
+class iLowLevelGraphics;
+class cBoundingVolume;
+
+class cBVTempArray {
+public:
+	const float *mpArray;
+	int mlSize;
+};
+
+enum eBVCollision {
+	eBVCollision_Inside,
+	eBVCollision_Outside,
+	eBVCollision_Intersect,
+	eBVCollision_LastEnum
+};
+
+typedef Common::List<cBVTempArray> tBVTempArrayList;
+typedef tBVTempArrayList::iterator tBVTempArrayListIt;
+
+class cShadowVolumeBV {
+public:
+	cPlanef mvPlanes[12];
+	int mlPlaneCount;
+	tVector3fVec mvPoints;
+	int mlCapPlanes;
+
+	bool CollideBoundingVolume(cBoundingVolume *aBV);
+
+private:
+	bool CollideBVSphere(cBoundingVolume *aBV);
+	bool CollideBVAABB(cBoundingVolume *aBV);
+};
+
+class cBoundingVolume : public iSerializable {
+	friend class cMath;
+	kSerializableClassInit(cBoundingVolume) public : cBoundingVolume();
+
+	cVector3f GetMax();
+	cVector3f GetMin();
+
+	cVector3f GetLocalMax();
+	cVector3f GetLocalMin();
+
+	void SetLocalMinMax(const cVector3f &mvMin, const cVector3f &mvMax);
+
+	void SetPosition(const cVector3f &avPos);
+	cVector3f GetPosition();
+
+	void SetSize(const cVector3f &avSize);
+	cVector3f GetSize();
+
+	void SetTransform(const cMatrixf &a_mtxTransform);
+	const cMatrixf &GetTransform();
+
+	cVector3f GetLocalCenter();
+	cVector3f GetWorldCenter();
+
+	float GetRadius();
+
+	void AddArrayPoints(const float *apArray, int alNumOfVectors);
+	void CreateFromPoints(int alStride);
+
+	cShadowVolumeBV *GetShadowVolume(const cVector3f &avLightPos, float afLightRange, bool abForceUpdate);
+
+	// Debug:
+	void DrawEdges(const cVector3f &avLightPos, float afLightRange, iLowLevelGraphics *apLowLevelGraphics);
+	void UpdateSize();
+
+	cMatrixf m_mtxTransform;
+
+	cVector3f mvLocalMax;
+	cVector3f mvLocalMin;
+
+	cVector3f mvMax;
+	cVector3f mvMin;
+
+	cVector3f mvPivot;
+
+	cVector3f mvWorldMax;
+	cVector3f mvWorldMin;
+
+	cVector3f mvPosition;
+	cVector3f mvSize;
+	float mfRadius;
+
+private:
+	bool mbPositionUpdated;
+	bool mbSizeUpdated;
+
+	tBVTempArrayList mlstArrays;
+
+	cShadowVolumeBV mShadowVolume;
+	bool mbShadowPlanesNeedUpdate;
+};
+
+} // namespace hpl
+
+#endif // HPL_BOUNDING_VOLUME_H