====== sanddropper ======

Spawns sand particles from the player's sand inventory. Used by [[ixe:features:units:duster|Duster]].

__**Arguments**__

  ?zerog_xoffset (int)
  :X offset in map pixels of pixel spawn zone used when sand gravity is 0
  ?zerog_yoffset (int)
  :Y offset in map pixels of pixel spawn zone used when sand gravity is 0
  ?zerog_width (int)
  :Width in map pixels of pixel spawn zone used when sand gravity is 0
  ?zerog_height (int)
  :Height in map pixels of pixel spawn zone used when sand gravity is 0