(local pxl8 (require :pxl8))

(var paused false)
(var gui nil)

(fn init []
  (set gui (pxl8.create_gui)))

(fn show []
  (set paused true)
  (pxl8.set_relative_mouse_mode false)
  (pxl8.center_cursor))

(fn hide []
  (set paused false)
  (pxl8.set_relative_mouse_mode true))

(fn toggle []
  (when (not gui) (init))
  (if paused
      (hide)
      (show)))

(fn update []
  (when gui
    (let [(mx my) (pxl8.get_mouse_pos)]
      (gui:cursor_move mx my))

    (when (pxl8.mouse_pressed 1)
      (gui:cursor_down))

    (when (pxl8.mouse_released 1)
      (gui:cursor_up))))

(fn draw []
  (when gui
    (gui:begin_frame)

    (pxl8.gui_window 200 100 240 140 "pxl8 demo")

    (when (gui:button 1 215 145 210 32 "Resume")
      (hide))

    (when (gui:button 2 215 185 210 32 "Quit")
      (pxl8.quit))

    (if (gui:is_hovering)
        (pxl8.set_cursor :hand)
        (pxl8.set_cursor :arrow))

    (gui:end_frame)))

{:is-paused (fn [] paused)
 :toggle toggle
 :show show
 :hide hide
 :update update
 :draw draw}