ios7 - 带间隔的 SKSpriteNode 选择器

Question

SpriteKit 相当于这样的东西是什么？

[CCNode schedule:@selector(doActivate)
        interval:[[enemyData objectForKey:@"spawnTime"] floatValue]];

Answer 1

您可以使用 SKAction 执行此操作：

+ (SKAction *)performSelector:(SEL)selector onTarget:(id)target or 

+ (SKAction *)runBlock:(dispatch_block_t)block queue:(dispatch_queue_t)queue

结合：

+ (SKAction *)repeatActionForever:(SKAction *)action

和

+ (SKAction *)waitForDuration:(NSTimeInterval)sec

每次通话之间的延迟

Answer 2

Cocos 中的调度器：

[self schedule:@selector(doActivate:)
      interval:[[enemyData objectForKey:@"spawnTime"] floatValue]];

在 Spritekit 中使用 SKAction 等效：

SKAction *wait = [SKAction waitForDuration:[[enemyData objectForKey:@"spawnTime"] floatValue]];
SKAction *performSelector = [SKAction performSelector:@selector(doActivate:) onTarget:self];
SKAction *sequence = [SKAction sequence:@[performSelector, wait]];
SKAction *repeat   = [SKAction repeatActionForever:sequence];
[self runAction:repeat];