Adding a schedule to an AtlastSprite

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Adding a schedule to an AtlastSprite

(17 posts) (7 voices)

Started 2 years ago by QcMat
Latest reply from shadaz

Tags:

schedule not firing event not called problem troublesho

QcMat
Member

Instead of changing the texture Rect of my ennemy sprites in my main loop, I tried adding a schedule to a sub-classed AtlasSprite.

In the schedule, I do [self setTextureRect: someRect];

I tried to do a NSLog in the schedule but it wont work either.

Is there something else to do to get a schedule in a sub-classed AtlasSprite to work?

IMO, this will clean up my game code and keep the design aspect away from the logic aspect. It's not that important, but I would like to make this work.

Thanks for any tips!

Posted 2 years ago #
jd
Member

Can you provide code? Show your schedule in your class and then how you call it please.

Posted 2 years ago #

QcMat
Member

I call it in the init method of the AtlasSprite subclass:

[self schedule: @selector(tick:) interval: 0.1f];

Here's the tick: method:

-(void) tick: (ccTime) dt{
	frame++;
	if(frame==9)frame=1;
	if(frame==1) [self setTextureRect:[textureReader getSpriteRect:@"shooterAlien4.png"]];
	if(frame==2) [self setTextureRect:[textureReader getSpriteRect:@"shooterAlien5.png"]];
	if(frame==3) [self setTextureRect:[textureReader getSpriteRect:@"shooterAlien4.png"]];
	if(frame==4) [self setTextureRect:[textureReader getSpriteRect:@"shooterAlien3.png"]];
	if(frame==5) [self setTextureRect:[textureReader getSpriteRect:@"shooterAlien2.png"]];
	if(frame==6) [self setTextureRect:[textureReader getSpriteRect:@"shooterAlien1.png"]];
	if(frame==7) [self setTextureRect:[textureReader getSpriteRect:@"shooterAlien2.png"]];
	if(frame==8) [self setTextureRect:[textureReader getSpriteRect:@"shooterAlien3.png"]];
}

Posted 2 years ago #

cjl
Member

How do you know the init method of your AtlasSprite subclass is being called?
Try placing and NSLog in the init method, and see if it is called.
How do you create the objects from your subclass?
Maybe put your code to set the scheduled method in the onEnter method of your subclass.

Posted 2 years ago #
QcMat
Member

I create the objects like this:

ShootingAlien *alien = [ShootingAlien InitWithRect:someRect ......];
[mgr addChild:alien ...];

I cannot test right now but I will when I get home.

Posted 2 years ago #
jd
Member

What's the advantage of calling a scheduler to do your animations in your subclass over addAction animation in your subclass?

Posted 2 years ago #
cjl
Member

@QcMat

Did you override initWithRect in your implementation of ShootingAlien?

If not, and you are relying on the super class implementation (AtlasSprite's implementation) then code you put into an 'init' method in ShootingAlien probably isn't being called.

Posted 2 years ago #
QcMat
Member

I just started adding animation to the enemy sprites. Wouldn't it interfere with the already running actions? Also, this way, I find it easy to control which image is displayed and it lets me modify the delay between each image individually.

Posted 2 years ago #
jd
Member

You can run multiple actions at the same time. I have sprites running moveTo and running animation at the same time. I was just wondering if you were recreating the wheel for your animations unnecessarily. If you feel you have more control, then go for it. I bet it runs better (smoother) using the built in methods though.

Posted 2 years ago #
QcMat
Member

@cjl Thankyou, I understand what you mean. I will try a couple things when I get back home.

@jd I will try the animation methods tonight to see if they fit my needs.

Thanks for your help!

Posted 2 years ago #
pabloruiz55
Member

i am trying to do something like this, i want to run an animation each x seconds, so i added an schedule to my player class which inherits from cocosnode.

//inside onInit
[self schedule: @selector(blinkear:) interval: 3.0f];

-(void) blinkear: (ccTime) delta
{
[self->mySprite runAction:self->blink];
}

There is no error or warning, the code onInit is run, and the schedule created but blinkear function is never called. Any idea?

Posted 2 years ago #
pabloruiz55
Member
Hi again, i recently run into the same problem again...

I have an array of elements that inherit from cocosnode.
When the player approaches the i want to schedule a function to run after some seconds.

So for each element if the player is near, i call a method of the element of the array:
```
-(void)prepareToSpike
{
	 [self schedule: @selector(launchSpike) interval:2];
		self->spikesLaunched = YES;
}

-(void)launchSpike
{
	[self unschedule: @selector(launchSpike)];

	NSLog("Disparooo");
}
```
The thing is that is not running... everything works, there is no crash, the scheduler gets scheduled (at least i see that when adding break points) but the scheduled method never gets called...

Any idea?
Posted 2 years ago #
Clain
Member

Did you try this :

-(void)prepareToSpike
{
[self schedule: @selector(launchSpike: ) interval:2];
self->spikesLaunched = YES;
}

-(void)launchSpike:(ccTime)dt
{
[self unschedule: @selector(launchSpike: )];
NSLog("Disparooo");
}

Posted 2 years ago #
pabloruiz55
Member

hi Clain, i had solved it just before you wrote, it wasn't that... i didn't know i had to add the object as child of the layer...
on the object init doing [game addchild:self] solved the issue.

Thanks anyway!

Posted 2 years ago #
bradparks
Member

Hey... I basically just had the same issue come up... I had a singleton that was scheduling some stuff, and it wasn't working either... Turns out it's just as pabloruiz55 said... you need to add the object that's doing the scheduling to the scene

e.g.

myScene.addChild(objectThatHasTheSchedule);

or add it as a child of some other object that's in the scene (ie a layer or something like that)

Posted 2 years ago #
pabloruiz55
Member

Maybe i am doing it the wrong way but it looks a little weird for me that now, to have the sprite around, i have the whole object as child of the layer AND its sprite as another child of the layer.
Maybe it is just me :P

Posted 2 years ago #
shadaz
Member

I just ran into this issue today and luckily found the solution but it seems a bit messy. I agree with pabloruiz55.

I have SpriteSheet added to scene, with sprites added to sprite sheet. Schedulers in the sprites do not fire at all unless I directly and them as childs to the scene. It does not seem right to have a child belong to a parent and its grandparent at the same time.

Scene->Spritesheet->Sprite
Scene->Sprite

is what I have to do to make schedulers work inside sprite.. is this supposed to behave like this?

thanks.

Posted 2 years ago #

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