Workshop › Snake › Step 27 of 28

Speed up as you grow

What we are doing

The last touch: every food makes the snake a little faster, down to a limit. SPEED becomes a variable speed.

```js
let speed // milliseconds between moves

  speed = 150

    speed = Math.max(60, speed - 8)

  if (!gameOver && time - last >= speed) {
```

What it means

• speed replaces the constant SPEED; reset sets it to 150.
• Each food takes 8 ms off the wait. Math.max(60, ...) picks the bigger number, so it never goes under 60.

Your turn

1. Delete the const SPEED line; under let gameOver write let speed.
2. In reset, set speed = 150 before placeFood().
3. In update, speed up after score += 1.
4. In loop, use speed instead of SPEED.

Skills: The game loop

← Remember the best score Build it yourself: through the walls →

All steps

1. Find the canvas
2. Get the pen
3. Paint the board
4. Think in cells
5. Keep the position in a variable
6. A function that draws
7. A function that moves
8. The game loop
9. Slow it down
10. A direction to move in
11. Steer with the arrow keys
12. A body made of a list
13. Move the whole body
14. Pick a spot for the food
15. Draw the food
16. Eat and grow
17. Never put food on the snake
18. A table of turns
19. No U-turns
20. Crash into the walls
21. Crash into yourself
22. The game over message
23. Show the score
24. One function that starts a game
25. Play again with Space
26. Remember the best score
27. Speed up as you grow
28. Build it yourself: through the walls