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komal
Member
Hi,
I have one created CCLabel which has string "I am using cocos2d.". Now on the selected MenuItem I want to find vowels in this string and Then i want to store it in the array and chnage the color of detedcted vowels from black to red..
So how can I do this.?
If anyone can help then I will really appreciate it.
Thanks..
Benihana
Member
I'd start:
http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSString_Class/Reference/NSString.html
And take a look at the cocos examples, or the tutorials for the rest of the stuff.
Sigh. No one is going to code your program for you.
komal
Member
@hm50: Thank you,
Yes...I have done that. I got all vowels...I was explaining all things so other can understand what I actually want to do...Its my mistake in description that I should write "I have done" instead of "I want to do". And I apologize for that.
I have checked almost all the properties related to array but I didnt find any property which helps me to change color of the characters.
What you are asking is to have a string of text with different letter colours on a CCLabel, I am not sure that is possible, on any other language like Flash you would use HTML to control the style, but I don't think you can do that on a CCLabel, you can definitively change the whole colour, nut not particular letters.
You could do a few things:
- Use a bitmap font, using Hiero or something similar, generate the png with the characters, modify then with photoshop or similar to change colour of vowels.
- Create two CCLabel, one with the vowels and spaces for the rest, another with the rest and spaces for the vowels, set the colours you like for each label, and overlap them. But font should be monospace, so same width for all characters.
Hope it helps.
yeti
Member
You can change each letter's colour if you use a CCLabelBMFont as each letter is a separate CCSprite (so in turn adopts the CCRGBAProtocol).
Give this a whirl:
CCLabelBMFont *bitmapLabel = [CCLabelBMFont labelWithString:@"ABC" fntFile:@"some_bitmap_font.fnt"];
CCArray *characters = [bitmapLabel children];
[(CCSprite *)[characters objectAtIndex:0] setColor:ccc3(255, 0, 0)];
[(CCSprite *)[characters objectAtIndex:1] setColor:ccc3(0, 255, 0)];
[(CCSprite *)[characters objectAtIndex:2] setColor:ccc3(0, 0, 255)];
[layer addChild:bitmapLabel];
komal
Member
Hi to all,
I have shown code below..Am I miss anything in below code? Its not giving me output. Instead it appears blank screen only.
-(id) init
{
if( (self=[super init] )) {
CCLabelBMFont *bitmapLabel = [CCLabelBMFont labelWithString:@"ABC" fntFile:@"NEW.fnt"];
bitmapLabel.anchorPoint=ccp(0.5f,0.5f);
CCArray *characters = [bitmapLabel children];
[(CCSprite *)[characters objectAtIndex:0] setColor:ccc3(255, 0, 0)];
[(CCSprite *)[characters objectAtIndex:1] setColor:ccc3(0, 255, 0)];
[(CCSprite *)[characters objectAtIndex:2] setColor:ccc3(0, 0, 255)];
[self addChild:bitmapLabel];
}
return self;
}
THANKS
Benihana
Member
For some reason the version of cocos I'm working with doesn't have CCLabelBMFont, however, if I add bitmapFontTest.png and bitmapFontTest.fnt to a new project, then replace HelloWorldScene's init with:
-(id) init
{
if( (self=[super init] )) {
CCBitmapFontAtlas *bitmapLabel = [CCBitmapFontAtlas bitmapFontAtlasWithString:@"ABC" fntFile:@"bitmapFontTest.fnt"];
bitmapLabel.anchorPoint=ccp(0.5f,0.5f);
bitmapLabel.position = ccp(100,100);
CCArray *characters = [bitmapLabel children];
[(CCSprite *)[characters objectAtIndex:0] setColor:ccc3(255, 0, 0)];
[(CCSprite *)[characters objectAtIndex:1] setColor:ccc3(0, 255, 0)];
[(CCSprite *)[characters objectAtIndex:2] setColor:ccc3(0, 0, 255)];
[self addChild:bitmapLabel];
}
return self;
}It works just fine. I moved your label up and over a bit so it was easier to see.
komal
Member
ok...thanks...
Then may be I am making mistake while generating .fnt file.
1.) I open hiero.
2.) Select font, size.
3.) I am specially taking care that only one page generated.
4.) Saving file with .hireo, .fnt and .png extension
5.)Then adding them into resource folder.
Anything more should i do in this?
komal
Member
Yuppieeee...... I have solved this issue...
I was not selecting Glyph cache before save. And file which I save was giving me mirror image. To solve this problem, open the .png file ->Tools->flip vertical
Now save this file and add it to the resource folder.
All The Best
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