Lua paddle

Paddle = {}
Paddle.__index = Paddle


function Paddle.create(x, y, width, height)
    -- Set up default arguments.
    x = x or 0
    y = y or 0
    width = width or 150
    height = height or 20

    local paddle = {}
    setmetatable(paddle, Paddle)

    paddle.x = x
    paddle.y = y
    paddle.width = width
    paddle.height = height

    return paddle
end


function Paddle:move(dx)
    self.x = self.x + dx
end


function Paddle:render()
    love.graphics.rectangle("fill", self.x, self.y, self.width, self.height)
end