Workshop › Pong › Step 2 of 26

A black court

What we are doing

Our first drawing: the whole canvas becomes black, like the old arcade screens. Drawing is always two moves: pick a color, then fill a shape with it.

```js
ctx.fillStyle = 'black'
ctx.fillRect(0, 0, canvas.width, canvas.height)
```

What it means

• ctx.fillStyle = 'black' picks the fill color.
• ctx.fillRect(x, y, width, height) fills a rectangle. 0, 0 is the top-left corner, and canvas.width and canvas.height (600 and 400) make it cover everything.

Your turn

Leave an empty line under const ctx = ..., write the two lines, then press Run.

Skills: Drawing on a canvas

← Get the canvas and the pen One dash of the net →

All steps

1. Get the canvas and the pen
2. A black court
3. One dash of the net
4. The whole net
5. Two paddles
6. A function that draws
7. The game loop
8. Remember held keys
9. Move the paddles
10. Stay on the court
11. The ball
12. The ball moves
13. Bounce off the top and bottom
14. Does the ball touch a paddle?
15. The paddles hit back
16. Serve again
17. Keep the score
18. Show the score
19. First to five
20. Who won?
21. Play again
22. Aim with the paddle
23. Faster every hit
24. A computer opponent
25. One player or two
26. Build it yourself: a serve pause