simplerenderer.rb

class Renderer
  attr_accessor(:background, :foreground, :overlay)

  def initialize
    @background = []
    @foreground = []
    @overlay = []
  end

  def draw_override(ffi_draw)
    @background.shift.call(ffi_draw) until @background.empty?
    @foreground.shift.call(ffi_draw) until @foreground.empty?
    @overlay.shift.call(ffi_draw) until @overlay.empty?
  end
      
  def tick(args)
    args.outputs.sprites << self
  end
end
    
@renderer = Renderer.new

def draw_player
  player = args.state.player
  
  @renderer.foreground << proc |ffi|
    ffi.draw_sprite(player.x, player.y, player.w, player.h, player.path)
  end
end