managing high definition graphics

[Ed Welch]

I was just wondering how people handle graphics for different devices, i.e high definition graphics for retina display and/or iPad and half size versions for older devices.
Do you use one package for all devices and detect device at runtime?
And if so do you just include the HD graphics and scale them down at run time for older devices, or do you include both half size graphics and HD graphics in the same package?

[Slade]

I use two sets of images, one set for older devices and another set for the retina display. Then the device is detected at runtime and the right set of graphics are loaded. This is almost done automatically by the framework I use, the Sparrow Framework. All my code is written for a resolution of 480x320 and is automatically scaled up when the game is running on an iPhone 4.