Workshop › Zelda-style Dungeon › Step 9 of 22

Enemies

What we are doing

Each e in a room becomes an enemy when you enter it: a purple square the size of the hero. An enemy remembers a lot that the next steps will use: which way it walks, when it turns, its health, and a knock-back.

```js
let enemies

  enemies = []
  ROOMS[ry][rx].forEach((line, row) => {
    ;[...line].forEach((ch, col) => {
      if (ch !== 'e') return
      const x = col * T + (T - SIZE) / 2
      enemies.push({ x, y: row * T + (T - SIZE) / 2, dir: [1, 0], turnIn: 0, hp: 1, knock: 0, kx: 0, ky: 0 })
    })
  })

  for (const e of enemies) {
    ctx.fillStyle = e.knock > 0 ? '#fca5a5' : '#7c3aed'
    ctx.fillRect(e.x, e.y, SIZE, SIZE)
  }
```

What it means

The enemies are read from the original room text (where the e still is), not from tiles.
Every time you enter a room its enemies start fresh.
A knocked-back enemy (knock > 0) is drawn pale pink.

Your turn

Under player, write enemies.
In enter, after tiles, build the enemies.
In draw, draw them before the hero.

Skills: Arrays and objects, Drawing on a canvas

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