Workshop › Missile Command-style Defense › Step 29 of 35

Play again

What we are doing

When the game is over, a click or Space starts a new one with reset().

```js
canvas.addEventListener('pointerdown', (event) => {
  if (state === 'over') {
    reset()
    return
  }

document.addEventListener('keydown', (event) => {
  if (event.key === ' ' && state === 'over') {
    event.preventDefault()
    reset()
  }
})
```

What it means

• A click when the game is over resets the game instead of firing; return stops there.
• Space (' ') does the same. preventDefault() stops the browser's own action for Space (scrolling the page).

Your turn

1. At the top of the pointerdown listener, write the if (state === 'over') block.
2. Under that listener's closing }), write the keydown listener.

Skills: Keyboard and mouse input, Game states

← The end Wave, ammo and messages →

All steps

1. Six cities to protect
2. Your missile base
3. Draw again and again
4. Cities that can fall
5. Rubble
6. Move towards a point
7. Launch an enemy missile
8. One missile a second
9. Missiles on their way
10. Smoke trails
11. Impact
12. Fire an interceptor
13. Click the sky
14. Interceptors fly
15. An explosion that grows and shrinks
16. Explode on arrival
17. Draw the explosions
18. Impacts explode too
19. Caught in the blast
20. Chain reactions
21. Only your explosions count
22. Points for every missile
23. Show the score
24. Limited ammo
25. Waves
26. Each wave is harder
27. The end of a wave
28. The end
29. Play again
30. Wave, ammo and messages
31. Launch from anywhere
32. Some missiles will split
33. Split into three
34. A high score
35. Build it yourself: a crosshair