I made an iPhone game a few months ago, and am now trying to port it as a universal app to both the iPad and iPhone 5 with Cocos2D. I was wondering if there was a simple-ish way to determine where an object should be placed based on the device running the game.
I could use if statements to figure out which device the game is running on, so when I get the correct sized images for the device I could have separate positions for each object, but it seems like there would be a maths formula which would allow me to use a lot less code. Obviously something like a full screen background is very simple, because it just needs to be centred with:
[background setPosition:CGPointMake(screenSize.width/2,screenSize.height/2)];
I haven't a clue how to adapt a button that would be X = 144 & Y = 330 on the old 3.5inch, 640 by 960 resolution iPhone to an iPad or iPhone 5 resolution.
I'm willing to use a more recent version of iOS if it will make my life easier, but because I'm not using any of Apple's objects I don't know if that is possible.
Maybe this isn't even possible because the button will be different sizes for the iPhone and iPad version, but I thought I would ask.
yeah, i am usually facing the same problem,
but if it is just a static objects placement
i would have relative coordinates instead of absolute for every object
and then use screen sizes to place them correctly
so you might want to use a function like:
-(CGPoint) relativeToScreen:(CGPoint) p {
return ccp(screenSize.width * p.x, screenSize.height * p.y)
}
where 0.0 <= p.x =< 1.0 and the same for p.y
and don't forget about your anchorPoint, because the node position is based on it as well
and i hope you have discovered that cocos2d already does image choosing instead of you,
you just have to set right suffixes for your images: -hd, -ipad, -ipadhd