Workshop › Tetris-style Blocks › Step 5 of 32

The number is the color

What we are doing

Each filled cell's number picks its color from the list COLORS: 1 is cyan, 2 yellow, 3 purple, and so on. Index 0 is null because 0 means empty.

```js
const COLORS = [null, '#22d3ee', '#facc15', '#a855f7', '#22c55e', '#ef4444', '#3b82f6', '#f97316']

      if (board[row][col]) drawCell(col, row, COLORS[board[row][col]])
```

What it means

• COLORS[n] is the color for the number n; index 0 is null, never used.
• draw now paints each cell with the color of its own number.

Your turn

1. Under const CELL = 24 write COLORS.
2. In draw, replace '#94a3b8' with COLORS[board[row][col]].

Skills: Arrays and objects

← Draw the whole board A piece is a small grid →

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