axmol/cocos/physics/chipmunk/CCPhysicsHelper.h

/****************************************************************************
 Copyright (c) 2013 cocos2d-x.org
 
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 all copies or substantial portions of the Software.
 
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#include "../CCPhysicsSetting.h"
#if (CC_PHYSICS_ENGINE == CC_PHYSICS_CHIPMUNK)

#ifndef __CCPHYSICS_HELPER_H__
#define __CCPHYSICS_HELPER_H__

#include "chipmunk.h"
#include "CCPlatformMacros.h"
#include "CCGeometry.h"

NS_CC_BEGIN

class PhysicsHelper
{
public:
    static Point cpv2point(const cpVect& vec) { return Point(vec.x, vec.y); }
    static cpVect point2cpv(const Point& point) { return cpv(point.x, point.y); }
    static Size cpv2size(const cpVect& vec) { return Size(vec.x, vec.y); }
    static cpVect size2cpv(const Size& size) { return cpv(size.width, size.height); }
    static float cpfloat2float(cpFloat f) { return f; }
    static cpFloat float2cpfloat(float f) { return f; }
    
    static void cpvs2points(const cpVect* cpvs, Point* points, int count)
    {
        for (int i = 0; i < count; ++i)
        {
            points[i] = cpv2point(cpvs[i]);
        }
    }
    
    static cpVect* points2cpvs(const Point* points, cpVect* cpvs, int count)
    {
        for (int i = 0; i < count; ++i)
        {
            cpvs[i] = point2cpv(points[i]);
        }
        
        return cpvs;
    }
};

NS_CC_END
#endif // __CCPHYSICS_HELPER_H__

#endif // CC_PHYSICS_ENGINE == CC_PHYSICS_CHIPMUNK