Right place sprite at map

how to place a sprite on the map correctly ? (buttom, center, margin buttom 5)

my code right now is:

init = function()
  me = object
    x = 0
    y = 0
  end
  
  
end

update = function()
  if (keyboard.UP)   then me.y+=1 end
  if (keyboard.DOWN) then me.y-=1 end
  if (keyboard.LEFT) then me.x-=1 end
  if (keyboard.RIGHT)then me.x+=1 end
end

draw = function()
  screen.clear()
  screen.drawMap("map1",0,80,screen.width,screen.height*10)
  screen.drawSprite("me",me.x, me.y)
end