I have an array of objects (objArray) and an array of actions (actArray). Both arrays are in order, I mean, object at index 0 of objArray has to perform action 0 on actArray.
To make the explanation clear, lets imagine both arrays have 3 objects, obj0, obj1 and obj2.
obj0 has to perform action 0 on actArray
obj1 has to perform action 1 on actArray
obj2 has to perform action 2 on actArray
these 3 operations (or n, in the case of the array) have to happen simultaneously.
When all animations end, I need the method animationsFinished to be called.
How do I do that?
I am beginning in Cocos. I have googled around and have not found any practical example around. I have found CCSpan but I don't see how this can be used with multiple objects each one with its own action. thanks.
You can just perform the actions sequentially and they will occur at the same time.
ReplyDeleteint yourAnimationDuration; //this needs to be set to whatever your animation speed is
for(int idx = 0; idx < 3; idx++) {
[[objArray objectAtIndex:idx] runAction:[actArray objectAtIndex:idx]];
[self performSelector:@selector(someMethodToBeExecutedWhenAnimationFinishes) withObject:nil afterDelay:yourAnimationDuration];
}
Or if you want the animation-is-finished method to be executed only once, just take it out of the for loop.
Edit:
id finalAnimation = [CCSequence actionOne:[actArray objectAtIndex:idx] two:someMethod];
This (I believe) will execute your method once the first action is completed.
In above case you mentioned , someMethodToBeExecutedWhenAnimationFinishes will be executed three times. Just use it 1 time after the loop.
ReplyDelete'yourAnimationDuration' will be time of the action with maximum duration as all other actions must have ended before the one with maximum duration.
'CCSequence' is a good option but you need to perform CCSequence only with the action with maximum duration instead of all of the objects.
So In 1st case
int yourAnimationDuration; //this needs to be set to duration of action with maximum time
for(int idx = 0; idx < 3; idx++) {
[[objArray objectAtIndex:idx] runAction:[actArray objectAtIndex:idx]];
}
[self performSelector:@selector(someMethodToBeExecutedWhenAnimationFinishes) withObject:nil afterDelay:yourAnimationDuration];
In 2nd Case
Suppose if your 2nd action takes maximum time.
int actionNum = 2;
for(int idx = 0; idx < 3; idx++) {
if(idx == (actionNum-1))
{
[[objArray objectAtIndex:idx] runAction:[CCSequence actions:[actArray objectAtIndex:idx],[CCCallFuncN actionWithTarget:self selector:@selector(someMethodToBeExecutedWhenAnimationFinishes:)],nil];
}
else{
[[objArray objectAtIndex:idx] runAction:[actArray objectAtIndex:idx]];
}
}
Hope that helps. I have not run this code. So check for syntax if any. :)