Workshop › Endless Runner › Step 13 of 19

Faster and faster

What we are doing

The world speeds up a little every frame, up to twice its starting speed. We also add up the distance run, which will become the score.

```js
let distance
  distance = 0

  distance += speed
  speed = Math.min(12, speed + 0.003)
```

What it means

• distance grows by the speed every frame: the pixels the world has moved.
• speed + 0.003 each frame is +0.18 a second; Math.min(12, ...) stops it at 12.

Your turn

1. Under let speed, write let distance; in reset, under speed = 6, write distance = 0.
2. In update, under the ground block, write the two lines.

Skills: Game states

← Try again Remember the best run →

All steps

1. The ground
2. The runner
3. Draw again and again
4. Gravity
5. Jump
6. Short hops
7. Tap to jump
8. Things that come at you
9. Cacti keep coming
10. Wait for the start
11. Crash
12. Try again
13. Faster and faster
14. Remember the best run
15. The score counter
16. Birds
17. Which keys are down?
18. Duck
19. Build it yourself: jump buffering