Spawning multiple repeatForever actions with different periods

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Spawning multiple repeatForever actions with different periods

(4 posts) (3 voices)

Started 9 months ago by XRayCharlie
Latest reply from XRayCharlie

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XRayCharlie
Member

hello,

I have a banner that I want to both rotate and scale and have it repeat forever. I want to have the rotation action at a different period than the scale action so the banner doesn't look like it is following the same path over and over again.

I can get it to work if both the scale and rotation action durations are the same and if they are not then the one action will stop and wait for the other to complete before repeating.

I have also tried adding the CCRepeatForever to the CCSpawn actions which does not work.

Any ideas of how to do this would be appreciated.

Regards,

id rotAction = [CCRotateBy actionWithDuration:2.0 angle:40];
id rotEaseAction = [CCEaseSineInOut actionWithAction:rotAction];
id rotSequence = [CCSequence actions: [[rotEaseAction copy] autorelease],[rotEaseAction reverse], nil];

id scaleToAction = [CCScaleTo actionWithDuration: 2.0 scale: 2.0f];
id scaleFromAction = [CCScaleTo actionWithDuration: 2.0 scale: 1.0f];
id scaleSequence = [CCSequence actions: scaleToAction, scaleFromAction, nil];

id actionAll = [CCSpawn actions: rotSequence, scaleSequence, nil];

id actionRepeat = [CCRepeatForever actionWithAction:actionAll];

[banner runAction:actionRepeat];

Posted 9 months ago #
clarus
Member

Rather than use CCRepeatForever, have you tried using a single sequence that ends with a completion function that creates a new sequence to keep it going forever?

When you create the new sequence you can change the rotation angle. You'd want to keep the durations the same but change the angles when you create your sequence. Otherwise, your scale and rotate actions will be wait on one another like you've found.

Posted 9 months ago #

mobilebros
Moderator

@XRayCharlie - What's wrong with doing:

//Get rid of actionAll

id actionRepeat1 = [CCRepeatForever actionWithAction:rotSequence];
id actionRepeat2 = [CCRepeatForever actionWithAction:scaleSequence];

[banner runAction:actionRepeat1];
[banner runAction:actionRepeat2];

Posted 9 months ago #

XRayCharlie
Member

Works perfect... Thank-you.

I didn't know that you could assign more than 1 action.

Now I do :)

Regards,

Posted 9 months ago #

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