Points Versus Pixels in Cocos2D

Points VS. Pixels

We should konw that Cocos2D uses a point system to help position objects on the normal iPhone display (480 × 320 pixels) and the retina display (960 × 640 pix- els).

In the nonretina display a point equals a pixel, but in the retina display a point equals two pixels.

When you set a sprite at position to 24 points, on an iPhone 3G or 3GS it equates to exactly 24 pixels from the left side.

On an iPhone 4 with the retina display it is 48 pixels from the left side.

In both cases, to the player Ole will look like he is in the exact same position onscreen.