text: import mcpi.minecraft as minecraft
  
  mc = minecraft.Minecraft.create()
  
  def ClearLandscape():
    # set air layer
    # (x1, y1, z1, x2, y2, z2, blockID, blockState)
    mc.setBlocks(-248, 1, -248, 248, 248, 248, 0) 
    # set layer of podzal
    mc.setBlocks(-248, 0, 0, 248, -3, 248, 3, 2)
    # set layer of mushrooms
    # mc.setBlocks(-248, 0, -248, 248, 0, 248, 40)
  
  mc.postToChat("Altering landscape...")
  ClearLandscape()
  