Variable that determines the vertical scrolling speed for a background.



Returns: Real


By setting this variable array to a different value, you can set the speed at which GameMaker: Studio automatically scrolls a background for you along the vertical plane. A positive value will scroll from top to bottom, while a negative value will be bottom to top and 0 stops all scrolling. if you have also enabled vertical tiling, either through the room editor or by using the background_vtiled variable, then scrolling the background will make it loop infinitely.


if background_vtiled[0] = true
   background_vspeed[0] = 2;

The above code checks background0 to see if it is tiled vertically, and if it is it then sets the vertical scroll speed to 2.

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