Workshop › Missile Command-style Defense › Step 20 of 35

Chain reactions

What we are doing

A destroyed missile explodes too, and its explosion can catch the missiles flying next to it: a chain reaction.

```js
// Caught by an explosion: it explodes too, which can catch the missiles next to it.

  blasts.push({ x: m.x, y: m.y, age: 0 })
```

What it means

• The caught missile adds a new blast where it was. That blast grows and may catch its neighbours.

Your turn

1. Write the comment line above if (blasts.some(...)) {.
2. Inside that if, write the blasts.push line between m.done = true and continue.

Skills: Collision detection

← Caught in the blast Only your explosions count →

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