Best way to display a game score on iPhone with cocos2d?

Question

I am looking to persistently display a game score in an iPhone app using cocos2d. Going off the code that cocos2d shows the FPS the app is running at:

-(void) showFPS
{
    frames++;
    accumDt += dt;

    if ( accumDt > 0.1)  {
        frameRate = frames/accumDt;
        frames = 0;
        accumDt = 0;
    }

    NSString *str = [NSString stringWithFormat:@"%.1f",frameRate];
    [FPSLabel setString:str];
    [FPSLabel draw];
}

I can get the score to display properly, but it flickers, even though the app is running at faster that 60 FPS... Any ideas?

One thing about this code that you showed, don't message FPSLabel with draw. Instead, use [FPSLabel setNeedsDisplay:YES] after you update it. This should cancel your flicker. — Jason Coco, Dec 03 '08 at 16:38

score 9 · Answer 1 · edited Jan 13 '12 at 15:16

9

For anyone who might be interested, I ended up using a cocos2d Label as so:

scoreLabel = [Label labelWithString: [NSString stringWithFormat:@"%d", score] dimensions: CGSizeMake(180, 20) alignment: UITextAlignmentRight fontName:@"Arial" fontSize: 20];
[scoreLabel setPosition: cpv(100,100)];
[self add: scoreLabel];

Hopefully this can help someone else.

edited Jan 13 '12 at 15:16

Macarse

91,829
44
175
230

answered Dec 04 '08 at 00:45

user21293

6,439
11
44
57

2

As of Cocos2d 0.8, you should use a BitmapFontAtlas, as it is way faster for something that's updated frequently on screen. – Brad Parks Oct 16 '09 at 18:58

score 5 · Accepted Answer · answered Dec 05 '08 at 22:13

5

Try using LabelAtlas instead. It is faster (it consumes much less CPU). See the AtlasDemo that comes with the cocos2d distribution to see how to use it.

answered Dec 05 '08 at 22:13

Best way to display a game score on iPhone with cocos2d?

2 Answers2