Workshop › Sokoban › Step 19 of 29

On to the next level

What we are doing

When a level is solved, Space loads the next one, unless it was the last. Loading rebuilds everything from the text, so moving on is one call.

```js
if (event.key === ' ' && solved() && level < LEVELS.length - 1) loadLevel(level + 1)
draw()
```

What it means

• Three conditions joined with && ("and"): the key is Space, the level is solved, and it is not the last one.
• LEVELS.length - 1 is the index of the last level (2), because counting starts at 0.

Your turn

In the listener, above draw(), write the Space line. Press Run, solve the first level and press Space.

Skills: Game states, Keyboard and mouse input

← Solved! Which 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