CollideShape.h

/* 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_COLLIDE_SHAPE_H
#define HPL_COLLIDE_SHAPE_H

#include "hpl1/engine/math/BoundingVolume.h"
#include "hpl1/engine/math/MathTypes.h"

namespace hpl {

enum eCollideShapeType {
    eCollideShapeType_Null,
    eCollideShapeType_Box,
    eCollideShapeType_Sphere,
    eCollideShapeType_Cylinder,
    eCollideShapeType_Capsule,
    eCollideShapeType_ConvexHull,
    eCollideShapeType_Mesh,
    eCollideShapeType_Compound,
    eCollideShapeType_LastEnum
};

class iPhysicsWorld;

class iCollideShape {
public:
    iCollideShape(iPhysicsWorld *apWorld) : mlUserCount(0), mpWorld(apWorld) {}
    virtual ~iCollideShape() {}

    virtual iCollideShape *GetSubShape(int alIdx) = 0;
    virtual int GetSubShapeNum() = 0;

    cVector3f GetSize() { return mvSize; }

    float GetRadius() { return mvSize.x; }
    float GetHeight() { return mvSize.y; }
    float GetWidth() { return mvSize.x; }
    float GetDepth() { return mvSize.z; }

    const cMatrixf &GetOffset() { return m_mtxOffset; }

    eCollideShapeType GetType() { return mType; }

    void IncUserCount() { mlUserCount++; }
    void DecUserCount() { mlUserCount--; }

    bool HasUsers() { return mlUserCount > 0; }
    int GetUserCount() { return mlUserCount; }

    float GetVolume() { return mfVolume; }

    cBoundingVolume &GetBoundingVolume() { return mBoundingVolume; }

protected:
    cVector3f mvSize;
    eCollideShapeType mType;
    cMatrixf m_mtxOffset;

    int mlUserCount;

    iPhysicsWorld *mpWorld;
    float mfVolume;

    cBoundingVolume mBoundingVolume;
};

} // namespace hpl

#endif // HPL_COLLIDE_SHAPE_H