Workshop › Lunar Lander › Step 5 of 31

The lander

What we are doing

The lander has a position, a velocity and an angle. reset() makes new hills and puts a new lander in the sky.

```js
let lander

function reset() {
  makeGround()
  lander = { x: 60, y: 40, vx: 1, vy: 0, angle: 0 }
}

reset()
draw()
```

What it means

• lander starts at (60, 40), moving 1 pixel right per frame and not falling yet; angle 0 means upright.
• reset() replaces the makeGround() call at the bottom: it makes the ground and the lander.

Your turn

1. Under let pad ... write let lander.
2. Leave an empty line under groundY and write reset.
3. At the bottom, replace makeGround() with reset().

Skills: Game states

← The height at any x Draw it around its own middle →

All steps

1. Random hills
2. Draw the hills
3. A landing pad
4. The height at any x
5. The lander
6. Draw it around its own middle
7. Two feet
8. The game loop
9. Moon gravity
10. Around the sides
11. Flying or not
12. Touching the ground
13. Remember held keys
14. Tilt
15. The engine
16. A flickering flame
17. Fuel
18. Touch controls
19. Landing or crashing
20. Fly again
21. Landed or crashed?
22. Readouts
23. Levels
24. Score
25. Next level or new game
26. A narrower pad
27. A high score
28. Burst into pieces
29. Pieces fall and fade
30. Draw the wreck
31. Build it yourself: wind