Tilemap Pseudocode

class Tilemap

  TILESIZE = 32

  def initialize(viewport, width, height, layer_count)
    @viewport    = Viewport.new(0, 0, 544, 416) # // You probably don't need this...
    @data        = Array.new(width).map! { Array.new(height).map! { Array.new(layer_count).map! { 0 } } }
    @width       = width
    @height      = height
    @layer_count = layer_count
    @layers      = []
    @layer_count.times { |i|
      @layers[i] = Plane.new( @viewport )
      @layers[i].bitmap = Bitmap.new(TILESIZE*width, TILESIZE*height) # // Normally wurks under 2000 x 2000 pixels
    }

  end

  def draw_tile(layer, x, y, bitmap, sourcerect)
    layer.bitmap.blt(x, y, bitmap, sourcerect)
  end

  def update_tiles
    for x in 0...@width
      for y in 0...@height
        for z in 0...@layer_count
          tileid = @data[x][y][z]
          draw_tile(@layers[z], x*TILESIZE, y*TILESIZE, tile_bitmap(tileid), tile_rect(tileid))
        end
      end
    end
  end

  def tile_bitmap(tileid)
    return Bitmap.new # // Need to edit this
  end

  def tile_rect(tileid)
    return Rect.new() # // Need to edit this
  end

end