Clean up haptic feedback component.

src/components/haptic-feedback.js

+const strengthForIntensity = {
+  low: 0.07,
+  medium: 0.2,
+  high: 1
+};
+
 AFRAME.registerComponent("haptic-feedback", {
   schema: {
     hapticEventName: { default: "haptic_pulse" }
@@ -5,22 +11,28 @@ AFRAME.registerComponent("haptic-feedback", {
 
   init: function() {
     this.pulse = this.pulse.bind(this);
-    this.tryGetActuator = this.tryGetActuator.bind(this);
-    this.tryGetActuator();
+    this.getActuator = this.getActuator.bind(this);
+    this.getActuator().then(actuator => {
+      this.actuator = actuator;
+    });
   },
 
-  tryGetActuator() {
-    var trackedControls = this.el.components["tracked-controls"];
-    if (
-      trackedControls &&
-      trackedControls.controller &&
-      trackedControls.controller.hapticActuators &&
-      trackedControls.controller.hapticActuators.length > 0
-    ) {
-      this.actuator = trackedControls.controller.hapticActuators[0];
-    } else {
-      setTimeout(this.tryGetActuator, 1000);
-    }
+  getActuator() {
+    return new Promise((resolve, reject) => {
+      setTimeout(() => {
+        var trackedControls = this.el.components["tracked-controls"];
+        if (
+          trackedControls &&
+          trackedControls.controller &&
+          trackedControls.controller.hapticActuators &&
+          trackedControls.controller.hapticActuators.length > 0
+        ) {
+          resolve(trackedControls.controller.hapticActuators[0]);
+        } else {
+          return this.getActuator().then(x => resolve(x));
+        }
+      }, 1000);
+    });
   },
 
   play: function() {
@@ -31,28 +43,14 @@ AFRAME.registerComponent("haptic-feedback", {
   },
 
   pulse: function(event) {
-    let { strength, duration, intensity } = event.detail;
-    switch (intensity) {
-      case "low": {
-        strength = 0.07;
-        duration = 12;
-        break;
-      }
-      case "medium": {
-        strength = 0.2;
-        duration = 12;
-        break;
-      }
-      case "high": {
-        strength = 1;
-        duration = 12;
-        break;
-      }
-      case "none": {
-        return;
-      }
+    let { intensity } = event.detail;
+    if (!strengthForIntensity[intensity]) {
+      console.warn(`Invalid intensity : ${intensity}`);
+      return;
     }
 
-    this.actuator.pulse(strength, duration);
+    if (this.actuator) {
+      this.actuator.pulse(strengthForIntensity[intensity], 15);
+    }
   }
 });

src/utils.js

@@ -191,19 +191,6 @@ export function parseJwt(token) {
   return JSON.parse(window.atob(base64));
 }
 
-export function angleToDirection(angle) {
-  angle = (angle * THREE.Math.RAD2DEG + 180 + 45) % 360;
-  if (angle > 0 && angle < 90) {
-    return "down";
-  } else if (angle >= 90 && angle < 180) {
-    return "left";
-  } else if (angle >= 180 && angle < 270) {
-    return "up";
-  } else {
-    return "right";
-  }
-}
-
 export function angleTo4Direction(angle) {
   angle = (angle * THREE.Math.RAD2DEG + 180 + 45) % 360;
   if (angle > 0 && angle < 90) {