axmol/cocos2dx/physics/CCPhysicsJoint.cpp

/****************************************************************************
 Copyright (c) 2013 cocos2d-x.org
 
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 of this software and associated documentation files (the "Software"), to deal
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 all copies or substantial portions of the Software.
 
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 THE SOFTWARE.
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#include "CCPhysicsJoint.h"
#ifdef CC_USE_PHYSICS

#if (CC_PHYSICS_ENGINE == CC_PHYSICS_CHIPMUNK)
#include "chipmunk.h"
#elif (CC_PHYSICS_ENGINE == CCPHYSICS_BOX2D)
#include "Box2D.h"
#endif

#include "CCPhysicsBody.h"

#include "chipmunk/CCPhysicsJointInfo.h"
#include "Box2D/CCPhysicsJointInfo.h"
#include "chipmunk/CCPhysicsBodyInfo.h"
#include "Box2D/CCPhysicsBodyInfo.h"
#include "chipmunk/CCPhysicsHelper.h"
#include "Box2D/CCPhysicsHelper.h"

NS_CC_BEGIN

PhysicsJoint::PhysicsJoint()
: _bodyA(nullptr)
, _bodyB(nullptr)
, _info(nullptr)
{
    
}

PhysicsJoint::~PhysicsJoint()
{
    CC_SAFE_DELETE(_info);
    
    CC_SAFE_RELEASE(_bodyA);
    CC_SAFE_RELEASE(_bodyB);
}

bool PhysicsJoint::init(cocos2d::PhysicsBody *a, cocos2d::PhysicsBody *b)
{
    do
    {
        CC_BREAK_IF(a == nullptr || b == nullptr);
        
        CC_BREAK_IF(!(_info = new PhysicsJointInfo()));
        
        _bodyA = a;
        _bodyA->retain();
        _bodyA->_joints.push_back(this);
        _bodyB = b;
        _bodyB->retain();
        _bodyB->_joints.push_back(this);
        
        return true;
    } while (false);
    
    return false;
}


PhysicsJointPin::PhysicsJointPin()
{
    
}

PhysicsJointPin::~PhysicsJointPin()
{
    
}

PhysicsJointFixed::PhysicsJointFixed()
{
    
}

PhysicsJointFixed::~PhysicsJointFixed()
{
    
}

PhysicsJointSliding::PhysicsJointSliding()
{
    
}

PhysicsJointSliding::~PhysicsJointSliding()
{
    
}

PhysicsJointLimit::PhysicsJointLimit()
{
    
}

PhysicsJointLimit::~PhysicsJointLimit()
{
    
}

#if (CC_PHYSICS_ENGINE == CC_PHYSICS_CHIPMUNK)
PhysicsBodyInfo* PhysicsJoint::bodyInfo(PhysicsBody* body) const
{
    return body->_info;
}



PhysicsJointFixed* PhysicsJointFixed::create(PhysicsBody* a, PhysicsBody* b, const Point& anchr)
{
    PhysicsJointFixed* joint = new PhysicsJointFixed();
    
    if (joint && joint->init(a, b, anchr))
    {
        joint->autorelease();
        return joint;
    }
    
    CC_SAFE_DELETE(joint);
    return nullptr;
}

bool PhysicsJointFixed::init(PhysicsBody* a, PhysicsBody* b, const Point& anchr)
{
    do
    {
        CC_BREAK_IF(!PhysicsJoint::init(a, b));
        
        _info->joint = cpPivotJointNew(bodyInfo(a)->body, bodyInfo(b)->body,
                                        PhysicsHelper::point2cpv(anchr));
        
        return true;
    } while (false);
    
    return false;
}

PhysicsJointPin* PhysicsJointPin::create(PhysicsBody* a, PhysicsBody* b, const Point& anchr1, const Point& anchr2)
{
    PhysicsJointPin* joint = new PhysicsJointPin();
    
    if (joint && joint->init(a, b, anchr1, anchr2))
    {
        joint->autorelease();
        return joint;
    }
    
    CC_SAFE_DELETE(joint);
    return nullptr;
}

bool PhysicsJointPin::init(PhysicsBody *a, PhysicsBody *b, const Point& anchr1, const Point& anchr2)
{
    do
    {
        CC_BREAK_IF(!PhysicsJoint::init(a, b));
        
        _info->joint = cpPinJointNew(bodyInfo(a)->body, bodyInfo(b)->body, PhysicsHelper::point2cpv(anchr1), PhysicsHelper::point2cpv(anchr2));
        
        return true;
    } while (false);
    
    return false;
}

PhysicsJointSliding* PhysicsJointSliding::create(PhysicsBody* a, PhysicsBody* b, const Point& grooveA, const Point& grooveB, const Point& anchr)
{
    PhysicsJointSliding* joint = new PhysicsJointSliding();
    
    if (joint && joint->init(a, b, grooveA, grooveB, anchr))
    {
        return joint;
    }
    
    CC_SAFE_DELETE(joint);
    return nullptr;
}

bool PhysicsJointSliding::init(PhysicsBody* a, PhysicsBody* b, const Point& grooveA, const Point& grooveB, const Point& anchr)
{
    do
    {
        CC_BREAK_IF(!PhysicsJoint::init(a, b));
        
        _info->joint = cpGrooveJointNew(bodyInfo(a)->body, bodyInfo(b)->body,
                                       PhysicsHelper::point2cpv(grooveA),
                                       PhysicsHelper::point2cpv(grooveB),
                                       PhysicsHelper::point2cpv(anchr));
        
        return true;
    } while (false);
    
    return false;
}


PhysicsJointLimit* PhysicsJointLimit::create(PhysicsBody* a, PhysicsBody* b, const Point& anchr1, const Point& anchr2, float min, float max)
{
    PhysicsJointLimit* joint = new PhysicsJointLimit();
    
    if (joint && joint->init(a, b, anchr1, anchr2, min, max))
    {
        return joint;
    }
    
    CC_SAFE_DELETE(joint);
    return nullptr;
}

bool PhysicsJointLimit::init(PhysicsBody* a, PhysicsBody* b, const Point& anchr1, const Point& anchr2, float min, float max)
{
    do
    {
        CC_BREAK_IF(!PhysicsJoint::init(a, b));
        
        _info->joint = cpSlideJointNew(bodyInfo(a)->body, bodyInfo(b)->body,
                                       PhysicsHelper::point2cpv(anchr1),
                                       PhysicsHelper::point2cpv(anchr2),
                                       PhysicsHelper::float2cpfloat(min),
                                       PhysicsHelper::float2cpfloat(max));
        
        return true;
    } while (false);
    
    return false;
}

#elif (CC_PHYSICS_ENGINE == CC_PHYSICS_BOX2D)

#endif

NS_CC_END
#endif // CC_USE_PHYSICS