Workshop › Tetris-style Blocks › Step 27 of 32

Faster every level

What we are doing

Each level makes the pieces fall 70 ms sooner, but never faster than every 100 ms.

```js
function dropInterval() {
  return Math.max(100, 800 - (level() - 1) * 70)
}

  if (state === 'playing' && time - lastDrop >= dropInterval()) {
```

What it means

• 800 - (level() - 1) * 70 is 800 at level 1 and 70 less for each level after.
• Math.max(100, ...) picks the bigger number, so the wait never goes below 100 ms.
• The loop asks dropInterval() instead of using 800.

Your turn

1. Write dropInterval above function clearLines() { (under level).
2. In loop, replace 800 with dropInterval().

Skills: The game loop

← Levels A fair bag of pieces →

All steps

1. The well
2. The board as rows of numbers
3. Draw one cell
4. Draw the whole board
5. The number is the color
6. A piece is a small grid
7. A list of shapes
8. All seven pieces
9. Does it fit inside the well?
10. Blocks are in the way
11. Try, then move
12. Move with the arrows
13. Turn a matrix
14. Turn with Up
15. Wall kicks
16. Falling by itself
17. A random piece at the top
18. Land and lock
19. One function starts a game
20. When the pile reaches the top
21. Game Over on screen
22. Play again
23. Clear full rows
24. Points for lines
25. The side panel
26. Levels
27. Faster every level
28. A fair bag of pieces
29. The next piece
30. Drop it
31. The ghost piece
32. Build it yourself: hold a piece