That can give me the source that can do the following.
--cocoas box2d
-uses a joystick (no issue)
-uses a sprite controlled by the joystick (no issue)
-uses a tilemap(no issue)
-sprite moving causes the tilemap to move with the sprite (no issue)
-the sprite detects collision of the objects in the map. ( big issues )
--also
-set up like a side scroller. kind of mario style.
-can define elements in the world the sprite is going to pick up.
end of story this is pretty basic and I have zero Idea why this community does not have something like this more documented. A community of game and app builders and no one can figure out collision? money is first come first serve. leave your email and I will contact you.