-- Keyboard input example. -- Rotate the Polycode logo with left and right keys screen = Screen() image = ScreenImage("Resources/polycode_logo.png") image:setPositionMode(ScreenEntity.POSITION_CENTER) image:setPosition(640/2,480/2) screen:addChild(image) rotationSpeed = 0 function onKeyDown(key) if key == KEY_LEFT then rotationSpeed = -200 elseif key == KEY_RIGHT then rotationSpeed = 200 end end function onKeyUp(key) if key == KEY_LEFT or key == KEY_RIGHT then rotationSpeed = 0 end end function Update(elapsed) image.rotation.roll = image.rotation.roll + (elapsed * rotationSpeed) end