Java-java中方法中有方法

Question

private void addNewSpriteWithCoords(CGPoint ccp) {
        // TODO Auto-generated method stub
        CCSpriteSheet sheet = (CCSpriteSheet) getChildByTag(kTagSpriteManager);

        //We have a 64x64 sprite sheet with 4 different 32x32 images.  The following code is
        //just randomly picking one of the images
        int idx = (ccMacros.CCRANDOM_0_1() > .5 ? 0:1);
        int idy = (ccMacros.CCRANDOM_0_1() > .5 ? 0:1);
        //CGRect是在屏幕上绘制矩形
        CCSprite sprite = CCSprite.sprite(sheet, CGRect.make(32 * idx,32 * idy,32,32));
        //不明白为什么要在sheet中加
        sheet.addChild(sprite);
        
        //sprite设置位置 屏幕坐标
        sprite.setPosition(ccp);
        
        // Define the dynamic body.
        //Set up a 1m squared box in the physics world
        BodyDef bodyDef = new BodyDef();
        bodyDef.type = BodyType.DYNAMIC;//小方块会动
        bodyDef.position.set(ccp.x/PTM_RATIO, ccp.y/PTM_RATIO);//物理坐标
        
        // Define another box shape for our dynamic body.
        PolygonShape dynamicBox = new PolygonShape();
        dynamicBox.setAsBox(.5f, .5f);//These are mid points for our 1m box//物理世界上的0.5米
        
        synchronized (world) {
            // Define the dynamic body fixture and set mass so it's dynamic.
            Body body = world.createBody(bodyDef);
            body.setUserData(sprite);
            
            FixtureDef fixtureDef = new FixtureDef();
            fixtureDef.shape = dynamicBox;  
            fixtureDef.density = 1.0f;
            fixtureDef.friction = 0.3f;
            body.createFixture(fixtureDef);
        }
    }

Answer 1

不是方法中方法。提示：synchronized块。