mirror of https://github.com/axmolengine/axmol.git
118 lines
3.6 KiB
C++
118 lines
3.6 KiB
C++
/****************************************************************************
|
|
Copyright (c) 2013 cocos2d-x.org
|
|
Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
|
|
Copyright (c) 2019-present Axmol Engine contributors (see AUTHORS.md).
|
|
|
|
https://axmol.dev/
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
****************************************************************************/
|
|
|
|
#ifndef __CCPHYSICS_HELPER_H__
|
|
#define __CCPHYSICS_HELPER_H__
|
|
|
|
#include "base/Config.h"
|
|
#if defined(AX_ENABLE_PHYSICS)
|
|
|
|
# include "chipmunk/chipmunk.h"
|
|
# include "platform/PlatformMacros.h"
|
|
# include "math/Math.h"
|
|
|
|
namespace ax
|
|
{
|
|
|
|
/**
|
|
* @addtogroup physics
|
|
* @{
|
|
* @addtogroup physics_2d
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* A physics helper class.
|
|
*
|
|
* Support for conversion between the chipmunk types and cocos types, eg: cpVect to Vec2, Vec2 to cpVect, cpFloat to
|
|
* float.
|
|
*/
|
|
class PhysicsHelper
|
|
{
|
|
public:
|
|
/** Make cpVect type convert to Vec2 type. */
|
|
static Vec2 cpv2vec2(const cpVect& vec) { return Vec2(vec.x, vec.y); }
|
|
|
|
/** Make Vec2 type convert to cpVect type. */
|
|
static cpVect vec22cpv(const Vec2& point) { return cpv(point.x, point.y); }
|
|
|
|
/** Make cpFloat type convert to float type. */
|
|
static float cpfloat2float(cpFloat f) { return f; }
|
|
|
|
/** Make Rect type convert to cpBB type. */
|
|
static cpBB rect2cpbb(const Rect& rect)
|
|
{
|
|
return cpBBNew(rect.origin.x, rect.origin.y, rect.origin.x + rect.size.width, rect.origin.y + rect.size.height);
|
|
}
|
|
|
|
/** Make cpBB type convert to Rect type. */
|
|
static Rect cpbb2rect(const cpBB& bb) { return Rect(bb.l, bb.b, bb.r - bb.l, bb.t - bb.b); }
|
|
|
|
/**
|
|
Make cpVect array convert to Vec2 array.
|
|
|
|
@param cpvs The be converted object, it's a cpVect array.
|
|
@param out The converted object, it's a Vec2 array.
|
|
@param count It's cpvs array length.
|
|
@return The out object's pointer.
|
|
*/
|
|
static Vec2* cpvs2points(const cpVect* cpvs, Vec2* out, int count)
|
|
{
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
out[i] = cpv2vec2(cpvs[i]);
|
|
}
|
|
|
|
return out;
|
|
}
|
|
|
|
/**
|
|
Make Vec2 array convert to cpVect array.
|
|
|
|
@param points The be converted object, it's a Vec2 array.
|
|
@param out The converted object, it's a cpVect array.
|
|
@param count It's points array length.
|
|
@return The out object's pointer.
|
|
*/
|
|
static cpVect* points2cpvs(const Vec2* points, cpVect* out, int count)
|
|
{
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
out[i] = vec22cpv(points[i]);
|
|
}
|
|
|
|
return out;
|
|
}
|
|
};
|
|
|
|
/** @} */
|
|
/** @} */
|
|
|
|
}
|
|
|
|
#endif // AX_ENABLE_PHYSICS
|
|
#endif // __CCPHYSICS_HELPER_H__
|