Workshop › Battleship › Step 20 of 35

A record of their shots

What we are doing

The computer will shoot back. Its shots need a grid of their own, on your sea, drawn on your small map.

```js
let theirShots // the same, on your sea

  theirShots = grid(null)

  drawSea(HOME, SMALL, theirShots, myFleet, true)
```

What it means

• theirShots works exactly like myShots: null, 'miss' or 'hit' for every square, but on your sea.
• reset gives it an empty grid, and your small map now draws it instead of an always-empty grid(null).

Your turn

1. Under let myShots, write let theirShots.
2. In reset, under myShots = grid(null), write theirShots = grid(null).
3. In draw, pass theirShots instead of grid(null) for your fleet.

Skills: Arrays and objects

← Win in as few shots as you can Take turns →

All steps

1. A 10 by 10 sea
2. A function for any sea
3. Your own sea
4. Draw again and again
5. Grids and ships as lists
6. A random fleet
7. Two fleets
8. Which ship is here?
9. Fire at a square
10. Show the shots
11. Your shot
12. Tap to fire
13. A message line
14. Hit or miss?
15. See your own fleet
16. Sinking ships
17. Darker hits on a sunk ship
18. Outline sunk ships
19. Win in as few shots as you can
20. A record of their shots
21. Take turns
22. The computer shoots back
23. You can lose too
24. A heat map
25. Shoot the hottest square
26. Hunt around a hit
27. See the heat map
28. H for heat
29. Show their ships at the end
30. A keyboard cursor
31. Move with the arrows
32. Fire with Enter, play again
33. Your best game
34. A side panel
35. Build it yourself: ships apart