How to know the end of the tile map

albert988

I'm learning the example of this
http://www.giderosmobile.com/forum/discussion/2413/runnergame-template#Item_5

how can I know the end of the tile map and stop moving the tile map?

techdojo

You'll have to keep a track of the width of the tile map (ie tilesize * number of tiles) and then just monitor the x (or y) position that you draw your map at so that it always stays on screen (just remember to account for the width of the screen).

ie.

local maxX = (mapTile_width * mapColumns) - ScreenWidth

Scouser

If you're scrolling left (i.e. your runner is going right) as in most runner games then your map X position will be negative so you will have to negate the maxX in @techdojo's example above. i.e.

if scrollX <= -maxX then you have reached the edge of the map