feat(levels): add level 14

src/helpers/timer.ts

@@ -20,3 +20,11 @@ export function clearAllIntervals() {
     clearInterval(id)
   }
 }
+
+/**
+ * Clears all `setTimeout()` and `setInterval()` timers.
+ */
+export function clearAllTimers() {
+  clearAllTimeouts()
+  clearAllIntervals()
+}

src/levels/14.ts

@@ -0,0 +1,66 @@
+import { addCursorKeys, clearAllTimers, initLevel } from '../helpers'
+import { Cleanup, Sprite } from '../types'
+
+export const level = 14
+export const title = 'Timer 3'
+
+const cleanups: Cleanup[] = [clearAllTimers]
+
+let keys: number
+
+function getMessage() {
+  return `Collect ${keys} more key${keys !== 1 ? 's' : ''}`
+}
+
+function addKey() {
+  add([
+    sprite(Sprite.key),
+    pos(randi(width()), randi(height())),
+    area(),
+    anchor('center'),
+    Sprite.key,
+  ])
+}
+
+export function prescript() {
+  keys = 420
+  initLevel(level, cleanups)
+  loadSprite(Sprite.key, 'sprites/key.png')
+
+  addCursorKeys(
+    add([sprite(Sprite.player), pos(center()), area(), Sprite.player]),
+  )
+
+  const message = add([text(getMessage())])
+
+  addKey()
+
+  cleanups.push(
+    onCollide(Sprite.key, Sprite.player, (key) => {
+      keys--
+      key.destroy()
+      message.text = getMessage()
+
+      if (keys) {
+        addKey()
+      } else {
+        add([sprite(Sprite.exit), pos(center()), area(), Sprite.exit])
+      }
+    }).cancel,
+  )
+
+  cleanups.push(
+    onAdd(Sprite.exit, () => {
+      if (keys) {
+        destroyAll(Sprite.exit)
+      }
+    }).cancel,
+  )
+}
+
+export const script = `
+const player = get('player')[0]
+const key = get('key')[0]
+`
+
+export function postscript() {}