cocos2d(CCSprite绑定不规则刚体与精灵一起移动)(2)

<喎?http://www.2cto.com/kf/ware/vc/" target="_blank" class="keylink">vcD4KPHA+Mi6z9cq8u6++q8Hpus241czlvLC80L7fPC9wPgo8cD48cHJlIGNsYXNzPQ=="brush:java;">#pragma mark 初始化玩家 -(void)initPlayer{ //创建对象层 获得对象的产生点 CCTMXObjectGroup *objects=[_gameMap objectGroupNamed:@"objects"]; NSMutableDictionary *spawnPoint=[objects objectNamed:@"StartPoint"]; //获得出生点坐标 float x=[[spawnPoint valueForKey:@"x"] floatValue]; float y=[[spawnPoint valueForKey:@"y"] floatValue]; _player=[CCSprite spriteWithFile:@"Player1.png"]; _player.position=ccp(x,y); _player.anchorPoint=CGPointZero; //设置描点为0，0 否则与刚体不能重合 b2BodyDef playerBodyDef; //定义刚体结构体的定义 [self addChild:_player]; playerBodyDef.type=b2_dynamicBody; playerBodyDef.fixedRotation=true; //不会旋转 playerBodyDef.position.Set(x/PTM_RATIO, y/PTM_RATIO); _playBody=world->CreateBody(&playerBodyDef); _playBody->SetUserData(_player); [[GB2ShapeCache sharedShapeCache] addFixturesToBody:_playBody forShapeName:@"Player1"]; //为刚体设置夹具 }
3.在update函数中添加更新位置方法

for(b2Body *b = world->GetBodyList(); b; b=b->GetNext()) {
        
        
        if (b->GetUserData() != NULL) {
            CCSprite *sprite = (CCSprite *)b->GetUserData(); //获得精灵对象
            if (sprite != nil) {
                b2Vec2 bodyPos = b->GetPosition();  //获得刚体的位置
                CGPoint pos = CGPointMake(bodyPos.x * PTM_RATIO, bodyPos.y * PTM_RATIO);  //变换为坐标
                float32 rotation = -1 * CC_RADIANS_TO_DEGREES(b->GetAngle());
                sprite.position = pos;
                sprite.rotation = rotation;
            }
        }
    }