Workshop › Typing Rain › Step 24 of 33

Faster and faster

What we are doing

A higher level should also be harder: words fall faster and come more often. The constants SPEED and SPAWN_EVERY become two small functions of the level.

```js
// Faster and more often as the level goes up.
const speed = () => 0.25 + level * 0.1
const spawnEvery = () => Math.max(40, 150 - level * 12)

    spawnTimer = spawnEvery()

  for (const w of words) w.y += speed()
```

What it means

• At level 1, speed() is 0.35 and spawnEvery() 138: the same as before. Each level adds 0.1 to the speed and takes 12 frames off the gap.
• Math.max(40, ...) picks the bigger number: the gap never goes under 40 frames. Without it, by level 13 the gap would be negative and words would pour out every frame.

Your turn

1. Delete the SPEED and SPAWN_EVERY lines.
2. Above function spawn() { write the comment and the two functions, with an empty line after them.
3. In update, use spawnEvery() and speed().

Skills: Functions, Game states

← Levels Best score →

All steps

1. A sky for the words
2. The ground
3. A word on the canvas
4. A function that draws
5. A list of words
6. Make them fall
7. The game loop
8. A new word from the list
9. Let it rain
10. Gone past the ground
11. Lock on to a word
12. Listen to the keyboard
13. Letter by letter
14. Half a word in yellow
15. Let go of a lost word
16. Lives
17. Hearts
18. Score
19. Out of lives
20. Freeze the game
21. The game over panel
22. Play again
23. Levels
24. Faster and faster
25. Best score
26. Accuracy
27. Words per minute
28. Your speed at the end
29. Where the keys go
30. Draw the keyboard
31. Light up the next key
32. Tap the keys
33. Build it yourself: change your mind