如何增加时间间隔？

Question

我想知道如何随着时间的推移增加间隔时间，以便我可以添加目标。我对cocos2d仍然陌生。

[self schedule:@selector(gameLogic:) interval:0.7]; 



-(void)gameLogic:(ccTime)dt { 
[self addTarget]; 

} 

Answer 1

float interval = .7; 

-(id)init{ 
    ... 
    [self scheduleOnce:@selector(gameLogic:) delay:interval]; //Check the name of the method, I'm not 100% sure about it 
    ... 
} 

-(void)gameLogic:(ccTime)dt { 
    [self addTarget]; 
    interval += dt; //Or whatever you want to increase it by 
    [self scheduleOnce:@selector(gameLogic:) delay:interval]; //Check the name of the method, I'm not 100% sure about it 
} 

Answer 2

为什么不申报一个简单的属性（整型，浮点等）来保存你的方法被调用的次数，并增加它，当你调用该方法本身？这样一来，它只是一个乘法问题：

//.h 
... 
@property (nonatomic, assign) int iterations; 
//.m 
@synthesize iterations = iterations_; 
[self schedule:@selector(gameLogic:) interval:0.7*iterations_]; 

-(void)gameLogic:(ccTime)dt { 
    [self addTarget]; 
    iterations_++; 
}