精简版—愤慨的小鸟
- 首先我们要布局一下。使用sizeclass来布局:
- 连线过来:
@property (weak, nonatomic) IBOutlet UIButton *bird;
@property (strong, nonatomic) IBOutletCollection(UIImageView) NSArray *ices;
对于冰块的连线。由于我们这里的冰块有4块,所以我们直接连的是一个数组
- 懒载入一个UIDynamicAnimator
@property (strong, nonatomic) UIDynamicAnimator *animator;
- (UIDynamicAnimator *)animator
{
if ( !_animator) {
_animator = [UIDynamicAnimator new];
}
return _animator;
}
- 接下来,我们给监听鸟的点击事件
- (IBAction)birdAction:(id)sender
{
// 给鸟和冰加入重力
NSMutableArray *tempArrM = [NSMutableArray array];
[tempArrM addObject:self.bird];
[tempArrM addObjectsFromArray:self.ices];
UIGravityBehavior *gravity = [[UIGravityBehavior alloc] initWithItems:tempArrM];
[self.animator addBehavior:gravity];
// 给鸟和冰加入碰撞
UICollisionBehavior *collision = [[UICollisionBehavior alloc] initWithItems:tempArrM];
[collision setTranslatesReferenceBoundsIntoBoundary:YES];
// 加入屏幕边缘碰撞
UIBezierPath *path = [UIBezierPath bezierPathWithRect:self.view.bounds];
[collision addBoundaryWithIdentifier:@"BoundsTest" forPath:path];
[self.animator addBehavior:collision];
/**
UIPushBehaviorModeContinuous, 持续的力
UIPushBehaviorModeInstantaneous 瞬间的力
*/
// 给鸟加入推力
UIPushBehavior *push = [[UIPushBehavior alloc] initWithItems:@[self.bird] mode:UIPushBehaviorModeInstantaneous];
// 力的方向
push.magnitude = 5.0;
push.angle = 2 * M_PI;
[self.animator addBehavior:push];
}
看一下效果:
能简单的实现 这个小游戏。大家能够自己把剩下的功能完好。谢谢
posted on 2017-08-18 09:17 gavanwanggw 阅读(208) 评论(0) 编辑 收藏 举报