Coffeescript Game Tutorial Add a Paddle

화면 하단에 막대기를 추가한 코드이다.

paddlex = 0
paddleh = 0
paddlew = 0

init_paddle = ->
paddlex = WIDTH / 2
paddleh = 10
paddlew = 75

draw = ->
clear()
circle(x, y, 10)
rect(paddlex, HEIGHT - paddleh, paddlew, paddleh)

dx = -dx if x + dx > WIDTH or x + dx < 0
if y + dy < 0
dy = -dy
else if y + dy > HEIGHT
if x > paddlex and x < paddlex + paddlew
dy = -dy
else
clearInterval(intervalId)

x += dx;
y += dy;

window.onload = ->
init()
init_paddle()

Reference