cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   Irish
   Member

   Hi

   Does anyone know if BitmapFontAtlas can support multiline text, and if so how?

   I know a single Label can do multiple lines by setting the dimensions of the label on creation, but I can't find anything similar for BitmapFontAtlas.

   Cheers

   Posted 2 years ago #
2. 

   riq
   Key Master

   Hi,
   BitmapFontAtlas as well as LabelAtlas don't support multiline text.

   Edit:
   try this tip by @LongJonnyE:
   http://johnehartzog.com/2009/06/create-multi-line-labels-with-cocos-2d-iphone/

   Posted 2 years ago #
3. 

   LongJohnnyE
   Member

   Here is the code, now that I learned how to use the backtick on these forums...
   It basically just takes the hard-work out of creating multiple one-line labels by breaking up a string (but not in the middle of a word). Took a short time to create and debug, but hopefully I can save you the time!

   I don't remember why I put a retain on the autoreleased BitmapFontAtlas objects. You might want to take them out and see if this code still works (it should?). If you don't release them at some other point, you are probably leaking that memory. Just FYI.
   

   (void) setTipString:(NSString*)str {
   
   	NSInteger lineChars = 0;
   	BOOL isSpace = NO;
   	NSInteger index = 0;
   	NSInteger numLines = 0;
   
   	NSMutableString *line = [NSMutableString stringWithCapacity:LINE_LENGTH];
   
   	while (index <= [str length]) {
   		if(index == [str length]) {
   			BitmapFontAtlas *tip = [[BitmapFontAtlas bitmapFontAtlasWithString:[NSString stringWithString:line] fntFile:@"text.fnt" alignment:UITextAlignmentLeft] retain];
   			[tip setPosition: cpv(30,210 - 20 * numLines)];
   			[self addChild:tip];
   			return;
   		}
   
   		NSString *tmp = [str substringWithRange:NSMakeRange(index, 1)];
   		[line appendString:tmp];
   
   		if([tmp isEqual:@" "])
   			isSpace = YES;
   		else
   			isSpace = NO;
   
   		if(lineChars >= LINE_LENGTH && isSpace) {
   			BitmapFontAtlas *tip = [[BitmapFontAtlas bitmapFontAtlasWithString:[NSString stringWithString:line] fntFile:@"text.fnt" alignment:UITextAlignmentLeft] retain];
   			[tip setPosition: cpv(30,210 - 20 * numLines)];
   			[self addChild:tip];
   			lineChars = -1;
   			[line setString:@""];
   			numLines++;
   		}
   		lineChars++;
   		index++;
   	}
   }

   Posted 2 years ago #
4. 

   Irish
   Member

   Nice one, thanks for your help.

   Posted 2 years ago #

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