A fast, easy to use, free, and community supported 2D game engine
PanzyCat
Member
Hey,
I have been trying to load a tile set. When i build and debug, the app crashes, and i am sent to this line of code: rect.origin.x = (gid % max_x) * (tileSize_.width + spacing_) + margin_;
Does anyone have any idea what this is? I originally had a tilemap on there, but then i switched it with another one and this error came up.
Thanks
Benihana
Member
It would help if you posted what the error is. Or any debugging you've done.
If I had to guess though, the compiler is attempting to access the setter for an x property of rect.origin which doesn't exist. Origin is a cgpoint, and so does not have setters for x and y. Try passing a cgpoint to rect.origin:
rect.origin = ccp((gid % max_x) * (tileSize_.width + spacing_) + margin_, rect.origin.y);
Or use standard message notation to remind yourself of what it's actually doing:
[rect setOrigin:ccp((gid % max_x) * (tileSize_.width + spacing_) + margin_, rect.origin.y)];
PanzyCat
Member
-(CGRect) rectForGID:(unsigned int)gid
{
CGRect rect;
rect.size = tileSize_;
gid = gid - firstGid_;
int max_x = (imageSize_.width - margin_*2 + spacing_) / (tileSize_.width + spacing_);
// int max_y = (imageSize.height - margin*2 + spacing) / (tileSize.height + spacing);
rect.origin.x = (gid % max_x) * (tileSize_.width + spacing_) + margin_;
rect.origin.y = (gid / max_x) * (tileSize_.height + spacing_) + margin_;
return rect;
}This code is from one of the Cocos2d source files: CCTMXXMLParser.m
Yes, max_x is an integer.
Benihana
Member
And max_x is not 0? Place a debug before that line and check what all your values are.
Otherwise, break every operation into its own line and see what's causing an issue (this may not run as written):
int tempInt1 = (gid % max_x);
float tempFloat1 = (tileSize_.width + spacing_);
tempFloat2 = tempInt1 * tempFloat1 + margin_;
rect.origin.x = tempFloat2
PanzyCat
Member
2010-11-03 20:07:59.290 Man[795:207] cocos2d: CCTexture2D. Can't create Texture. UIImage is nil
2010-11-03 20:07:59.290 Man[795:207] cocos2d: Couldn't add image:/Users/james/Library/Application Support/iPhone Simulator/4.1/Applications/C7EB8FEC-D6FC-43DB-ADC2-66C7384BCCF7/Man.app/Users/james/Desktop/Apps/Graphics/TileSets/mariotype/tilesets/marioType_Tileset_Castle.png in CCTextureCacheThis is the error im getting in my debugger console. I tried to add the image again, but it still didnt work.
Benihana
Member
I'm not quite sure how that's related to what you posted earlier, however it sounds as though you might be embedding your image in your tileset (not supported). If that's the case, take a look at: http://www.cocos2d-iphone.org/wiki/doku.php/prog_guide:tiled_maps?s=tmx
Or possibly your tileset image has a different name? Did you add the image as a copy or reference?
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