SetCameraZoom(<-zoom)

Sets the camera zoom. The zoom is equal to half the vertical size of the viewport in world (sand) pixels.

SetCameraZoom(256)
# This sets the viewport's height to 512, exactly enough to see the entire map if centered
 
GetScreenSize ->screenSize
SetCameraZoom(<-screenSize.y 8 div)
# This sets the camera to a fixed resolution of 4 screen pixels per world pixel regardless of screen size