Workshop › Sokoban › Step 18 of 29

Solved!

What we are doing

A level is solved when every box sits on a goal. solved() asks exactly that with every, and a solved board freezes.

```js
function solved() {
  return boxes.every((box) => goals.has(key(box.x, box.y)))
}

function move(dx, dy) {
  if (solved()) return
```

What it means

• every runs the test for each box and is true only if it is true for all.
• move returns at once when the level is solved.

Your turn

1. Above function move, write solved and leave an empty line.
2. In move, write if (solved()) return as the first line. Press Run.

Skills: Game states

← A box on a goal turns green On to the next level →

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