Workshop › Sokoban › Step 17 of 29

A box on a goal turns green

What we are doing

The player should see progress: a box sitting on a goal is drawn green instead of brown.

```js
for (const box of boxes) tile(box.x, box.y, goals.has(key(box.x, box.y)) ? '#22c55e' : '#b45309', 6)
```

What it means

• goals.has(key(box.x, box.y)) asks whether the box's tile is a goal.
• condition ? a : b picks green when it is, brown when it is not.

Your turn

In draw, in the box line, replace '#b45309' with the ? : choice.

Skills: Game states

← Push a box Solved! →

All steps

1. A level written as text
2. The canvas and the pen
3. The warehouse floor
4. A function that draws
5. A name for every tile
6. Read the walls
7. Draw the walls
8. Center the level
9. The goals
10. The boxes
11. The player
12. Two more levels
13. One step
14. Walk with the arrows
15. Boxes are in the way
16. Push a box
17. A box on a goal turns green
18. Solved!
19. On to the next level
20. Which level?
21. A line at the bottom
22. Count the moves
23. A photo of the game
24. A photo before every move
25. Undo
26. Restart
27. A record for every level
28. Show the record
29. Build it yourself: count the pushes