apply warm up time only to beats

src/components/beat-loader.js

@@ -133,13 +133,8 @@ AFRAME.registerComponent('beat-loader', {
    * Generate beats and stuff according to timestamp.
    */
   tick: function (time, delta) {
-    var bpm;
+    const beatsTime = this.beatsTime;
     var i;
-    var notes;
-    var obstacles;
-    var events;
-    var beatsTime = this.beatsTime;
-    var msPerBeat;
     var noteTime;
 
     if (!this.data.isPlaying || !this.data.challengeId || !this.beatData) { return; }
@@ -148,23 +143,23 @@ AFRAME.registerComponent('beat-loader', {
     if (this.beatsTimeOffset !== undefined &&
         this.songCurrentTime !== this.el.components.song.context.currentTime) {
       this.songCurrentTime = this.el.components.song.context.currentTime;
-      this.beatsTime = (this.songCurrentTime + this.data.beatAnticipationTime) * 1000 -
-                       BEAT_WARMUP_TIME;
+      this.beatsTime = (this.songCurrentTime + this.data.beatAnticipationTime) * 1000;
     }
 
-    notes = this.beatData._notes;
-    obstacles = this.beatData._obstacles;
-    events = this.beatData._events;
-    bpm = this.beatData._beatsPerMinute;
-    msPerBeat = 1000 * 60 / this.beatData._beatsPerMinute;
+    const bpm = this.beatData._beatsPerMinute;
+    const msPerBeat = 1000 * 60 / this.beatData._beatsPerMinute;
+
+    const notes = this.beatData._notes;
     for (i = 0; i < notes.length; ++i) {
       noteTime = notes[i]._time * msPerBeat;
-      if (noteTime > beatsTime && noteTime <= beatsTime + delta) {
+      if (noteTime > (beatsTime - BEAT_WARMUP_TIME) &&
+          noteTime <= (beatsTime - BEAT_WARMUP_TIME + delta)) {
         notes[i].time = noteTime;
         this.generateBeat(notes[i]);
       }
     }
 
+    const obstacles = this.beatData._obstacles;
     for (i = 0; i < obstacles.length; ++i) {
       noteTime = obstacles[i]._time * msPerBeat;
       if (noteTime > beatsTime && noteTime <= beatsTime + delta) {
@@ -172,6 +167,7 @@ AFRAME.registerComponent('beat-loader', {
       }
     }
 
+    const events = this.beatData._events;
     for (i=0; i < events.length; ++i) {
       noteTime = events[i]._time * msPerBeat;
       if (noteTime > beatsTime && noteTime <= beatsTime + delta) {

src/components/beat.js

@@ -81,8 +81,7 @@ AFRAME.registerComponent('beat', {
     this.initColliders();
     if (this.data.type === 'mine') {
       this.initMineFragments();
-    }
-    else {
+    } else {
       this.initFragments();
     };
   },
@@ -163,6 +162,9 @@ AFRAME.registerComponent('beat', {
     if (Math.random > 0.5) { this.rotationZChange *= -1; }
     this.el.object3D.rotation.z -= this.rotationZChange;
     this.rotationZStart = this.el.object3D.rotation.z;
+
+    // Reset mine.
+    if (this.data.type == 'mine') { this.resetMineFragments(); }
   },
 
   initBlock: function () {
@@ -284,16 +286,7 @@ AFRAME.registerComponent('beat', {
     var fragment;
 
     if (this.data.type === 'mine') {
-      for (var i = 0; i < this.mineFragments.length; i++) {
-        fragment = this.mineFragments[i];
-        fragment.visible = false;
-        fragment.position.set(0, 0, 0);
-        fragment.scale.set(1, 1, 1);
-        fragment.speed.set(
-          Math.random() * 5 - 2.5,
-          Math.random() * 5 - 2.5,
-          Math.random() * 5 - 2.5);
-      }
+      this.resetMineFragments();
       return;
     }
 
@@ -332,6 +325,20 @@ AFRAME.registerComponent('beat', {
     this.setObjModelFromTemplate(cutRightEl, this.models.dot);
   },
 
+  resetMineFragments: function () {
+    if (this.data.type !== 'mine') { return; }
+    for (let i = 0; i < this.mineFragments.length; i++) {
+      let fragment = this.mineFragments[i];
+      fragment.visible = false;
+      fragment.position.set(0, 0, 0);
+      fragment.scale.set(1, 1, 1);
+      fragment.speed.set(
+        Math.random() * 5 - 2.5,
+        Math.random() * 5 - 2.5,
+        Math.random() * 5 - 2.5);
+    }
+  },
+
   wrongHit: function (hand) {
     var wrongEl = hand === 'left' ? this.wrongElLeft : this.wrongElRight;
     if (!wrongEl) { return; }
@@ -466,9 +473,7 @@ AFRAME.registerComponent('beat', {
   })(),
 
   destroyMine: function () {
-    var fragment;
-
-    for (var i = 0; i < this.mineFragments.length; i++) {
+    for (let i = 0; i < this.mineFragments.length; i++) {
       this.mineFragments[i].visible = true;
     }