HaxeFlixel/flixel — pull request #555 by volvis (2013-07-31 08:39:32+00:00)
Title: Override FlxSpriteGroup.add() method to transform sprites relative to group's coordinates, closes #553

Suggested change: when sprites are added to group, they are transformed relative to the position of the group. So a sprite at coordinates (0,0) would spawn at the group's x and y coords, etc.