simple-states.p8

function _init()
  _upd=upd_title
  _drw=drw_title
end
function _update()
  _upd()
end
function _draw()
  _drw()
end

-- title screen state update/draw functions
function upd_title()
  -- change to game state when btn 4 is pressed
  if btnp(4) then
    _upd=upd_game
    _drw=drw_game
  end
end
function drw_title()
  cls(1)
  print("title")
end


-- game state update/draw functions
function upd_game()
  
  -- some condition to determine the end of the game
  if score < 1 then
   _upd=upd_gameover
   _drw=drw_gameover
  end
end
function drw_game()
  cls(2)
  print("game")
end


-- gameover state update/draw functions
function upd_gameover()
    
end
function drw_gameover()
  cls(3)
  print("game over")
end