SpriteKit中的Sprite的Boundingbox

Question

我们使用下面的代码在cocos2d中获取sprite的碰撞区域。

CGRect heroRect = [heroBird boundingBox];
if(CGRectContainsPoint(heroRect, bullet.position))

如何在sprite-kit中获取boundingBox？

Answer 1

SKSpriteNode *heroBird;
heroBird = [SKSpriteNode spriteNodeWithImageNamed:@"heroBird.png"];
//heroBird rect can be set to whatever you like, shapes,rects,circles
heroBird.physicsBody = [SKPhysicsBody bodyWithRectangleOfSize:heroBird.size];  
// set heroBird collision, category and contact bitmasks
// detect using didBeginContact method


CGRect heroRect = heroBird.frame;

Answer 2

使用以下行获取边界框：

CGRect heroRect = [heroBird calculateAccumulatedFrame]

另见Apple Docu