//
//                       _oo0oo_
//                      o8888888o
//                      88" . "88
//                      (| -_- |)
//                      0\  =  /0
//                    ___/`---'\___
//                  .' \\|     |// '.
//                 / \\|||  :  |||// \
//                / _||||| -:- |||||- \
//               |   | \\\  -  /// |   |
//               | \_|  ''\---/''  |_/ |
//               \  .-\__  '-'  ___/-. /
//             ___'. .'  /--.--\  `. .'___
//          ."" '<  `.___\_<|>_/___.' >' "".
//         | | :  `- \`.;`\ _ /`;.`/ - ` : | |
//         \  \ `_.   \_ __\ /__ _/   .-` /  /
//     =====`-.____`.___ \_____/___.-`___.-'=====
//                       `=---='
//
//
//     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
//               佛祖保佑         永无BUG
//
//
//

/*code is far away from bug with the animal protecting
    *  ┏┓　　　┏┓
    *┏┛┻━━━┛┻┓
    *┃　　　　　　　┃ 　
    *┃　　　━　　　┃
    *┃　┳┛　┗┳　┃
    *┃　　　　　　　┃
    *┃　　　┻　　　┃
    *┃　　　　　　　┃
    *┗━┓　　　┏━┛
    *　　┃　　　┃神兽保佑
    *　　┃　　　┃代码无BUG！
    *　　┃　　　┗━━━┓
    *　　┃　　　　　　　┣┓
    *　　┃　　　　　　　┏┛
    *　　┗┓┓┏━┳┓┏┛
    *　　　┃┫┫　┃┫┫
    *　　　┗┻┛　┗┻┛ 
    *　　　
    */

// 创建一个精灵
CCSprite* actor = CCSprite::node();
// 物体的定义
b2BodyDef bodyDef;
// 指定数据
bodyDef.userData = actor;
// 创建物体
actor->body = box2Dworld->CreateBody(&bodyDef);

b2Vec2 gravity;	// 重力
gravity.Set(0.0f,-10.0f); 
world = new b2World(gravity);
world->SetAllowSleeping(true);	// 设置允许物体进入休眠状态
world->SetContinuonsPhysics(true); // 设置使用连续物理检测

delete world;
world = NULL;

float32 timeStep = 1.0f/60.0f;	// 时间步，频率
int32 velocityIterations = 10;	// 速度迭代
int32 positionIterations = 8;	// 位置迭代次数
myWorld->Step(timeStep,velocityIterations,positionIterations);	// 驱动函数

for (b2Body* b = myWorld()->GetBodyList();b;b = b->GetNext())
{
	b->WakeUp();	// 唤醒物体
}

class MyQueryCallback : public b2QueryCallback
{
public:
	bool ReportFixture(b2Fixture* fixture)
	{
		b2Body* body = fixture->GetBody();
		body->WakeUp();
		return ture; // 继续查询
	}
}

b2AABB aabb;
aabb.lowerBound.Set(-1.0f,-1.0f);	// 设置AABB的上边界
aabb.upperBound.Set(1.0f,1.0f);		// 设置AABB的下边界
myWorld->Query(&callback,aabb);

class MyRayCastCallBack : public b2RayCastCallback
{
public:
	MyRayCastCallback()
	{
		m_fixture = NULL;
	}
	float32 ReportFixture(b2Fixture* fixture,const b2Vec2& point,const b2Vec2& normal,float32 fraction)
	{
		// 保存框架
		m_fixture = fixture;
		// 保存交点
		m_point = point;
		// 保存法向量
		m_normal = normal;
		// 保存光线通过的分数距离
		m_fraction = fraction;
		return fraction;
	}
	b2xFixture* m_fixture;
	b2Vec2 m_point;
	b2Vec2 m_normal;
	float32 m_fraction;
};
// 回调函数
MyRayCastCallback callback;
// 光线投射的起始点
b2Vec2 point(-1.0f,0.0f);
// 光线投射的结束点
b2Vec2 point(3.0f,1.0f);
// 开始光线的投射
myWorld->RayCast(&callback,point1,point2);

b2CircleShape circle;// 创建圆形形状的对象
circle.m_p.Set(1.0f,2.0f,3.0f);// 设置位置
circle.m_radius = 0.5f;// 设置半径

b2PolygonDef triangleDef;
triangleDef.vertexCont = 3;
triangleDef.vertices[0].Set(-1.0f,0.0f);
triangleDef.vertices[1].Set(1.0f,0.0f);
triangleDef.vertices[2].Set(0.0f,2.0f);

b2Vec2 vertices[4];
vertices[0].Set(0.0f,0.0f);
vertices[1].Set(1.0f,0.0f);
vertices[2].Set(0.0f,1.0f);
vertices[3].Set(1.0f,1.0f);

int32 count = 4;
b2PolygonShape polygon;
polygon.Set(vertices,count);

void SetAsbox(float32 hx,float32 hy);
void SetAsBox(float32 hx,float32 hy,const b2Vec2& center,float32 angle);
void SetAsEdge(const b2Vec2& v1,const b2Vec& v2);

float32 friction;
friction = sqrtf(shape1->friction * shape2->friction);

float32 resitution;
restitution = b2Max(shape1->resitution,shape2->resitution);

playerFixtureDef.filter.categoryBits = 0x0002;
playerFixtureDef.filter.maskBits = 0x0004;
monsterFixturDef.filter.categoryBits = 0x0004;
monsterFixturDef.filter.maskBits = 0x0002;

fixture1Def.filter.groupIndex = 2;
fixture2Def.filter.groupIndex = 2;
fixture3Def.filter.groupIndex = -8;
fixture4Def.filter.groupIndex = -8;

b2Contact::IsTouching	// 这个函数可以得到感应器是否接触
b2ContactListener::BeginContact和EndContact // 开始接触点和结束接触点

bodyDef.position.Set(0.0f,2.0f); 	// body的原点
bodyDef.angle = 0.25f * b2_pi;		// 弧度制下body的角

void SetTransform(const b2Vec2& position,float32 angle);

bodyDef.linearDamping = 0.0f;
bodyDef.angularDamping = 0.01f;

bodyDef.allowSleep = true;	// 可以休眠
bodyDef.awake = ture;	// 休眠物体

b2BodyDef bodyDef;
bodyDef.userData = &myActor;

bool MyScene::init()
{
	Size size = Director::getInstance()->getWinSize();

	Sprite *sp1 = Sprite::create("icon.png");
	sp1->setPosition(Vec2(size.with*0.2,size.height*0.7));
	this->addChild(sp1);

	Sprite *sp2 = Sprite::create("icon.png",Rect(10,30,28,28));
	sp2->setPosition(Vec2(size.width*0.4,size.height*0.7));
	this->addChild(sp2);
	// 创建纹理
	Texture2D *texture = TextureCache::sharedTextureCache()->addImage("icon.png");

	Sprite *sp3 = Sprite::createWithTexture(texture);
	sp3->setPosition(Vec2(size.width*0.6,size.height*0.7));
	this.addChild(sp3);

	Sprite *sp4 = Sprite::createWithTexture(texture,Rect(0,0,40,40));
	sp4->setPosition(Vec2(size.width*0.8,size.height*0.7));
	this.addChild(sp4);

	SpriteFrame *frame = SpriteFrame::create("icon.png",Rect(0,0,57,57));
	Sprite *sp5 = Sprite::createWithSpriteFrame(frame);
	sp5->setPosition(Vec2(size.width*0.3,size.height*0.3));
	this.addChild(sp5);

	Sprite *sp6 = Sprite::createWithSpriteFrame("icon.png");
	sp6->setPosition(Vec2(size.width*0.3,size.height*0.3));
    this->addChild(sp6);
     
    return true;
}