A fast, easy to use, free, and community supported 2D game engine
aditya_k
Member
Hi,
I my project i want to vanish a row of sprites by first blinking them.
However, the code is not waiting for the sprites to finish their events (blinking) and the row vanish function is getting called.
As a result, the blinking of the rows cannot be seen.If you comment out the vanish function then the rows are blinking properly.
So how should I delay the vanish function so that the events are completed??
Thanks.
You can use a sequence to do just that. There are examples in the sprites test demo.
I'm typing this from memory but it goes something like this:
id blinkAction = [Blink actionWithDuration:1 blinks:3];
id fadeOutAction = [FadeOut actionWithDuration:2];
[yourSprite runAction: [Sequence actions: blinkAction, fadeOutAction, nil]];
aditya_k
Member
Thanks for the reply.
I know I can use the sequence for the actions.But the problem with my code is that while vanishing the rows, I do want to fade them out or use any of the inbuilt sprite actions. I have a written my own code, where it re-initializes the sprites with different images.So therefore I need to call this function after the blinking is over. However, this cannot be done using the Sequence.
I just need a mechanism so that the code will wait for the actions to get over and then call the vanish function.
Here is a sample of my code :
if(rowMatched) {
[delegate addAnimation : j : 0]; // this function makes the jth row blink
[self rowVanish:j]; // this function removes the jth row.
}
Now, this rowVanish function is not waiting for the blinking done by the addAnimation method to get over.
Please help me with this.
Thanks a lot.
aditya_k
Member
thanks for the reply.
I tried doing this. But it still did not work. The same problem still persists. :(
I have a few basic doubts:
1.Can we pass arguments for the selector using schedule?It doesn't seem to work when.I am a complete newbie to cocos2D and don't have much knowledge about schedulers.
2. Can the above prob be solved if i use threads?. Eg: Create a separate thread which will take care of the blinking. And then wait for this thread to complete and then vanish the rows. If yes, how can I go about doing this?
Sorry for these relatively basic doubts.I am really getting confused with this now.
Please help me out.
Thanks a lot.
Hi!
1.Can we pass arguments for the selector using schedule?It doesn't seem to work when.I am a complete newbie to cocos2D and don't have much knowledge about schedulers.
As far a i know, no you can't...
2. Can the above prob be solved if i use threads?. Eg: Create a separate thread which will take care of the blinking. And then wait for this thread to complete and then vanish the rows. If yes, how can I go about doing this?
You shouldn't have to .You could do a sequence with a callfunc at the end which calls your "rowVanish" function.
aditya_k
Member
hi,
The prob seemed to get solved, but now im stuck with another issues of this.
It seems that the Action Manager does not call the function rowVanish immediately.
Hence, if there is a case where the rows have to be vanished in quick succession, the ActionManager crashes.
Here is a code snippet of my project :
-(void) Anim {
for(i=0;i<7;i++) {
sp = gameSprites[index][i];
myActions = [Sequence actions:
[Blink actionWithDuration:2 blinks:2],
[CallFuncND actionWithTarget:self selector:@selector(VanishTheRow :data:) data:(NSUInteger*)index],
nil];
[sp runAction:myActions];
}
}
Now, the control seems to return from the Anim function to the caller function,w/o actually the VanishTheRow function getting called.
Getting this error:
Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'runAction: Action already running'
Is there any way to prevent this from happening? Is using thread the only way out of this?If yes, hw to go about doing it?
Please help me out with this.
Thanks.
What are you exactly doing inside vanishTheRow function?
Try to debug a little more to see what action is being ran many times.
Also when are you calling "anim" ?
If you call it once and then call it again before it finished running the first time you will get that error for sure.
aditya_k
Member
I am changing the contents of the sprite grid in the vanishTheRow function. I am calling the anim when all the sprites in that row are of the same kind.Basically, im tryin to make a game, where a row will vanish once it is made up of similar pieces.
So I call the anim func like this,
if(row has same pieces){
[delegate anim :rowNo]; // in this Anim,i blink and vanish the rows.
NSLog(@"Returned from Anim");
}
Now, I get a "Returned from Anim" msg before i get a "Row Vanish" msg (which i print in the VanishTheRow func).So if i can ensure that,all the actions get completed before returning,the problem will get solved.
@pabloruiz55 : are you on any messenger, so that we can chat over there.?
Thanks a lot for helping. :)
Yes, that way you will get the message before the actions end beause they run in parallel one could say. The only way the nslog will be called when the action ends is placing it in a callfunc at the end of the sequence.
Now, what you should do is check that you are running that only once while the action is performed.
Try to check whether you are running [delegate anim :rowNo]; multiple times or you are running [CallFuncND actionWithTarget:self selector:@selector(VanishTheRow :data:) data:(NSUInteger*)index] multiple times for the same sprite.
You can reach me at pabloruiz5 [at] homail [dot] com
You must log in to post.
