if said("stop") then
  var.speed = [0, 0]
end if

if said("slow") then
  var.speed = var.speed / 2
end if

if said("fast") then
  var.speed = var.speed * 2
end if

if said("left") then
  var.speed = [-3, 0]
end if

if said("right") then
  var.speed = [3, 0]
end if

if said("up") then
  var.speed = [0, -2]
end if

if said("down") then
  var.speed = [0, 2]
end if

mouse.DirectInput2D += var.speed