Clear the hook on new level

src/game.js

@@ -69,6 +69,7 @@ export class Game {
     this.time = this.roundTime
     this.level = Level.create(this.currentLevel, this.oh, this.gw, this.gh)
     this.goal = Math.floor(this.score / 2 + Game.calculateLevelScore(this.level) * 0.65)
+    this.player.hook.clear()
   }
 
   displayMessage (msg, time = 60) {

src/player.js

@@ -50,6 +50,14 @@ class Hook extends GameObject {
     ctx.restore()
   }
 
+  clear () {
+    this.obj = null
+    this.d = 0
+    this.md = -1
+    this.x = this.rx
+    this.y = this.ry
+  }
+
   update (level) {
     if (this.d === 0 && this.r < FULL_ROTATION_EDGE && this.rd === 1) {
       this.r += 1