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More Strange Sprite Action

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Started 2 years ago by Osiris
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Osiris
Member
People keep telling me that the only way to learn is to ask questions...

...and that there are no "stupid questions" So here goes...

From the bits and pieces of my other posts, I have cobbled together the following code:
```
- (BOOL)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
	UITouch *touch = [touches anyObject];
	CGPoint location = [touch locationInView:[touch view]];
	Sprite *sprite1 = (Sprite *)[self getChildByTag:1];
	Sprite *sprite2 = (Sprite *)[self getChildByTag:2];
	Sprite *sprite3 = (Sprite *)[self getChildByTag:3];
	Sprite *bg = (Sprite *)[self getChildByTag:4];

	CGPoint convertedPoint = [[Director sharedDirector] convertCoordinate:location];

	CGRect spriteRect1 = [self makeRect:sprite1];
	CGRect spriteRect2 = [self makeRect:sprite2];
	CGRect spriteRect3 = [self makeRect:sprite3];
	CGRect bgRect = [self makeRect:bg];

	id action1 = [Liquid actionWithWaves:5 amplitude:20 grid:ccg(10, 10) duration:3];

	if(CGRectContainsPoint(spriteRect1, convertedPoint)) [sprite1 runAction:action1];
	else if(CGRectContainsPoint(spriteRect2, convertedPoint)) [sprite2 runAction:action1];
	else if(CGRectContainsPoint(spriteRect3, convertedPoint)) [sprite3 runAction:action1];
	else if(CGRectContainsPoint(bgRect, convertedPoint)) [bg runAction:action1];
	else return kEventIgnored;

	return kEventHandled;
}
```
Sprites1-3 are just little circles and bg is a PNG background image sized for the screen and being loaded RGBA8888.

I have The sprites moving in a circular motion around the center of the screen on top of the background (bg). If I omit the background, it runs at 60FPS. If include the background, it runs at 30FPS.

the touches are basically working in that *something* happens, The action is called when the touch happens.

However, It only registers touches in the upper 1/4 right of the screen for the background and and when touched, the FPS immediately drops to 20 FPS and never recovers.

If the circles are touched, they run the action correctly, BUT, again, the FPS drops to 20 and the Back ground disappears. I have experimented with each of the sprites at their own z-level and it appears that when a sprite is touched that every sprite on every layer under it disappears??

I really do appreciate the help and take all these suggestions to heart... Thanks
Posted 2 years ago #
Osiris
Member

I know someone out there has some insights? I'm truly stuck. With every comment, I get a little bit better at this stuff.

Posted 2 years ago #
Osiris
Member

I fixed the registering touches on 1/4 of the screen part, thanks to Pabloruiz55! The rest is still a mystery to me.

Posted 2 years ago #
pabloruiz55
Member

hi again!

Can you post the code you are using to add the background? I think the must be something weird there to make your game run that much slower. Aren't you doing anything else with the background?

As for the effects, i recently asked something similar here http://www.cocos2d-iphone.org/forum/topic/760. Basically i was trying to run a wave effect on my background sprite and fps goes down from 60 to 20.

So for the time being you shouldn't try to run an effect on such a huge sprite.
Regarding the same problem with the small circles i don't know. I really havent tried running effects on anything else...

Try running some simpler actions like a moveTo and check if the fps still goes to 20.

Posted 2 years ago #

Osiris
Member

Here is my code for the background...

//Add Background
	[Texture2D setDefaultAlphaPixelFormat:kTexture2DPixelFormat_RGBA8888];
	Sprite *bg = [Sprite spriteWithFile:@"image15.png"];
	//bg.position = ccp(240, 160);
	bg.position = CGPointMake(240.0f, 160.0f);
	[self addChild:bg z:0 tag:4];

and I changed the action of the small sprites to a moveto as suggested... It does NOT reduce the FPS any more. I left the actions for the background so I can test interchangeably... here is the whole snippet...

- (BOOL)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
	UITouch *touch = [touches anyObject];
	CGPoint location = [touch locationInView:[touch view]];
	Sprite *sprite1 = (Sprite *)[self getChildByTag:1];
	Sprite *sprite2 = (Sprite *)[self getChildByTag:2];
	Sprite *sprite3 = (Sprite *)[self getChildByTag:3];
	Sprite *bg = (Sprite *)[self getChildByTag:4];
	Sprite *quit = (Sprite *)[self getChildByTag:9];

	CGPoint convertedPoint = [[Director sharedDirector] convertCoordinate:location];
	// bg.position = ccp(0,0);

	NSLog(@"X,Y coordinate: %3.0f,%3.0f", convertedPoint.x,convertedPoint.y);
	NSLog(@"BG X,Y: %3.0f, %3.0f", bg.position.x, bg.position.y);

	//NSLog(@"Y Coordinate: %3.0f", convertedPoint.y);

	CGRect spriteRect1 = [self makeRect:sprite1];
	CGRect spriteRect2 = [self makeRect:sprite2];
	CGRect spriteRect3 = [self makeRect:sprite3];
	CGRect bgRect = [self makeRect:bg];
	CGRect quitRect = [self makeRect:quit];

	id action1 = [Liquid actionWithWaves:5 amplitude:20 grid:ccg(10, 10) duration:3];
	id action2 = [MoveTo actionWithDuration:1.0f position:ccp(240, 160)];

	if(CGRectContainsPoint(spriteRect1, convertedPoint)) [sprite1 runAction:action2];
	else if(CGRectContainsPoint(spriteRect2, convertedPoint)) [sprite2 runAction:action2];
	else if(CGRectContainsPoint(spriteRect3, convertedPoint)) [sprite3 runAction:action2];
	else if(CGRectContainsPoint(bgRect, convertedPoint)) [bg runAction:action1];
	else if(CGRectContainsPoint(quitRect, convertedPoint)) {
		Scene *s2 = [Scene node];
		[s2 addChild: [LayerMenu node]];
		[[Director sharedDirector] replaceScene: [FadeTransition transitionWithDuration:0.5f scene:s2 withColorRGB:0xffffff]];
	}

	else return kEventIgnored;

	return kEventHandled;

	[sprite1 release];
	[sprite2 release];
	[sprite3 release];
	[bg release];

}

I could see the FPS momentarily dropping while the liquid action was being ran, but I would expect the FPS to jump back when its finished?

Also, I have no idea why the initial loading of the background would drop the FPS so dramatically?

Posted 2 years ago #

Osiris
Member

as a test, I loaded the same image I'm using for the circles and the FPS remained at 60. as soon as I replaced it again with a 480x320 PNG, the FPS went back to 30 FPS. Didnt someone say that these images would be stored internally as 512x512 (power of 2) images because of openGL anyway? I think the circle starts life as a 512x512 anyway and is shrunk by the system.

Posted 2 years ago #
Osiris
Member

I just tried a couple of other PNGs as background images, if they are sized for the screen they drop the FPS in the same manner as the first image.

Posted 2 years ago #
pabloruiz55
Member

what are the sizes of the circles and background?

In my game i have a background sprite of 480 x 320
and 40 sprites of 30 x 30 more or less.

It runs steadily at 60 fps ( OS3.0, iphone 3g)

Posted 2 years ago #
Osiris
Member

the circles are 128x128 PNGs

They dont seem to be affecting it. I can replace the background with one of them and it stays at 60 FPS.

Posted 2 years ago #
PhilM
Member

Is this on a device or the simulator?
I think in another thread you mentioned you were only using the simulator?

If you haven't already, I'd really suggest getting it tested on an actual device before spending much more time picking your project apart.

Posted 2 years ago #
Osiris
Member

I'm in waiting mode for the money to setup a key. All I have is the simulator.

But I guess I'll put this one on hold for now.

Posted 2 years ago #
PhilM
Member

Do you have a friend or someone who'd let you do a test install?

As Clain mentioned in another of your threads, the performance varies so much between the simulator and devices, its very hard, if not impossible to judge these things until you've seen it running for real.

If not, I'd continue coding, get everything else working as you'd like, and be prepared to have to scale back effects and other features once you get a test device, or do alot of debugging & tweaking ; )

Good luck.

Posted 2 years ago #
Osiris
Member

does anyone else see this kind of degradation in the simulator? I went ahead and ordered my key.

Posted 2 years ago #
pabloruiz55
Member

I don't, my game runs at more then 100 fps in the simulator.

Posted 2 years ago #
PhilM
Member

Congrats on taking the plunge ; )

Whats your dev machine as well? Are you on a proper mac, or a hackintosh perhaps?

Posted 2 years ago #
Osiris
Member

its core 2 duo Mac Mini... the most machine I can afford at the moment.

Posted 2 years ago #
Osiris
Member

whatever I am doing seems to have a limiter at 60 FPS. I'm sure its due to something I have copied from another project.

Posted 2 years ago #
PhilM
Member

60 fps is the cap on the simulator when using the regular director, and as far as I know is a hardware limit on the actual device.

Take a look at fast director, which tries to push the device as fast as possible (I believe), and shows over 60fps on the simulator (but still capped at 60 on the device I think?). But that has some limitations/issues with certain setups. I haven't used it before, so don't know the details I'm afraid.

Posted 2 years ago #
Osiris
Member

I just switched to fastDirector. Got it up to 70 FPS on the menu, but the same degradation happens as soon as it loads the background texture, drops to 42FPS and then down to 27-28 FPS when I use the liquid action.

had it been running into an actual hardware limitation on my simulator, I would have expected it to have dropped to 30 FPS on loading bg and not 42FPS.

[sigh]... come on activation code....

Posted 2 years ago #
PhilM
Member

lol. You'll need LOTS of patience when dealing with Apple ; )

Yea, effects like the Liquid are very expensive to render, and you'll likely see large drops regardless (although I haven't tried them much myself).

Depending on the effect you need, and whether it needs to act on dynamic scenarios, it may sometimes be better to pre render certain effects with a package like after effects, and import them as animations (although full screen animations also run slow in my experience)

I'd personally make sure you can get a good fps without the heavy effects first, as pablo suggested, and then see what eye candy you can push the device to handle after your happy with everything else.

Posted 2 years ago #
Osiris
Member

IM getting there. I'm just trying tests at the moment and changing things to get my feet wet. I just come in here and whine when I don't understand the results!

Posted 2 years ago #

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