CODEWITHSUNDEEP
objective-ccocos2d-iphone
ah_gel
ah_gel

Reputation: 111

putting schedulers in CCSequence

so basically I have 2 scheduler functions that I would like to put in a CCSequence.

id func1 = [CCCallFuncN actionWithTarget:self selector:@selector(pan1)];
id func2 = [CCCallFuncN actionWithTarget:self selector:@selector(pan2)];
id seq = [CCSequence actions: func1, func2, nil];
[img runAction:seq];

pan1 does a panning from left to right and pan2 does a panning from right to left.

-(void) pan1{
    [self schedule:@selector(panLtoR) interval:0.05]; 
}

-(void) pan2{
    [self schedule:@selector(panRtoL) interval:0.05];
}

My desired result is to have func1 completed fully before func2 begins. But right now... func2 begins when func1 is still running. And I can't figure out why. How can I solve this problem? Thanks in advance.

Added: Here's how the code of panLtoR looks like

-(void) panLtoR{
   [self panLtoR: 1 andY:0.5];
} 

-(void) panLtoR:(float) x andY: (float) y{

   float rightAnchorX = x - m_minAnchorX;

   if(m_curAnchorX <= rightAnchorX)
   {
       m_img.anchorPoint = ccp(m_curAnchorX, y);
       m_curAnchorX += 0.005;
   }

    else{
       [self unschedule:@selector(panLtoR)];
   }
}

and panRtoL does similar thing. Basically what I was trying to do is to achieve panning by moving the anchor point and not the position. How can I make it so it finishes the func1 before it starts func2?

Upvotes: 1

Views: 120

Answers (1)

James Webster
James Webster

Reputation: 32066

Let's break down what you have written:

id func1 = [CCCallFuncN actionWithTarget:self selector:@selector(pan1)];
id func2 = [CCCallFuncN actionWithTarget:self selector:@selector(pan2)];
id seq = [CCSequence actions: func1, func2, nil];
[img runAction:seq];

Here, this means call pan1 and when finished, call pan2. This is basically just:

[self pan1];
[self pan2];

This means that your two schedulers are starting at (almost) the same time. The actions they run internally will be fighting against each other.

Though I can't tell exactly what you are trying to accomplish with the limited code, what I expect you want, is something similar to this:

id func1 = [CCMoveBy actionWithDuration:0.5f position:ccp(-100, 0)];
id func2 = [CCMoveBy actionWithDuration:0.5f position:ccp( 100, 0)];
id seq = [CCSequence actions: func1, func2, nil];
[img runAction:seq];

Upvotes: 1

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