cocos2d for iPhone

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

1. 

   pabloruiz55
   Member

   I have one of the latest versions of Cocos2d where you can add a \n to your string and make it multiline. For example:

   CCBitmapFontAtlas * title = [CCBitmapFontAtlas bitmapFontAtlasWithString:@"hello \n world" fntFile:@"font.fnt"];

   would render:

   hello
   world

   My problem is that if i try to use a dynamic text that won't work anymore:

   CCBitmapFontAtlas * title = [CCBitmapFontAtlas bitmapFontAtlasWithString:text fntFile:@"font.fnt"];

   where text is retrieved from a dictionary:

   text = [di objectForKey:@"questionText"];

   I get "Hello \n world"

   i have also tried putting that text value like this, but doesn't make it work

   CCBitmapFontAtlas * title = [CCBitmapFontAtlas bitmapFontAtlasWithString:[NSString stringWithFormat:@"%@ \n bla",text] fntFile:@"font.fnt"];

   any ideas?

   Posted 1 year ago #
2. 

   skyhawk
   Member

   the value of the text in [di objectForKey:@"questionText"];

   Is it:
   "Hello \n world"
   or
   "Hello \\n world"

   Posted 1 year ago #
3. 

   pabloruiz55
   Member

   Hi skyhawk it is "Hello \n world".

   Should it be "Hello \\n world" ?

   Posted 1 year ago #
4. 

   itlgames
   Moderator

   The best way to work with dynamic text is to set a width and height, and forget about the \n (otherwise is not dynamic as you need to manually set the breaklines). I used this for a Label (CCLabel now):

   // first bit to calculate the size of the text
   NSString * helpDescription = @"your text here without break lines";
   float fontSize = 14;
   CGSize maxSize = { 450, 2000 };
   CGSize actualSize = [helpDescription sizeWithFont:[UIFont fontWithName:@"Trebuchet MS" size:fontSize]
   constrainedToSize:maxSize
   lineBreakMode:UILineBreakModeWordWrap];
   
   // second part to render the label
   CGSize containerSize = { actualSize.width, actualSize.height };
   Label* descriptionLabel = [Label labelWithString:helpDescription
   dimensions:containerSize
   alignment:UITextAlignmentLeft
   fontName:@"Trebuchet MS"
   fontSize:fontSize];

   I remember doing something similar for a bitmap atlas, where I first used a system font similar size to get the real size, then declare the bitmap font.

   Posted 1 year ago #

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