Workshop › Angry Birds-style Slingshot › Step 33 of 47

Pigs

What we are doing

The pigs arrive: green, round and fragile (25 hp). One sits on the beam, one on the ground; the stone block leaves the level. pigs() returns the pigs still in the game.

```js
  pig: { color: '#65a30d', density: 1, hp: 25 },

const LEVEL = [
  ['wood', 380, 230, 12, 60], ['wood', 440, 230, 12, 60], ['wood', 370, 218, 94, 12], ['pig', 406, 196, 22, 22],
  ['pig', 480, 268, 22, 22],
]

const pigs = () => bodies.filter((b) => b.kind === 'pig')

    if (b.kind === 'pig' || b.kind === 'bird') {
```

What it means

pig is a new material: as light as wood but with only 25 hp.
The level's fourth row is a pig on the beam (196 + 22 = 218, the beam's top), the fifth a pig on the ground.
pigs() filters the bodies down to the pigs.
Pigs are drawn as circles, like the bird.

Your turn

In MATERIALS, under stone, write the pig line.
In LEVEL, replace the stone row with the two pigs.
Under mass write pigs.
In draw, change the circle condition to b.kind === 'pig' || b.kind === 'bird'.

Skills: Game states

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