Merge pull request #4605 from ericrius1/light

Updated lightcontroller.js logic to find the nearest light when user cli...

examples/entityScripts/alternativeLightController.js

@@ -0,0 +1,100 @@
+(function() {
+  this.preload = function(entityId) {
+    var soundURLs = ["https://hifi-public.s3.amazonaws.com/sounds/Switches%20and%20sliders/lamp_switch_1.wav",
+      "https://hifi-public.s3.amazonaws.com/sounds/Switches%20and%20sliders/lamp_switch_2.wav",
+      "https://hifi-public.s3.amazonaws.com/sounds/Switches%20and%20sliders/lamp_switch_3.wav"];
+    this.entityId = entityId;
+    this.properties = Entities.getEntityProperties(this.entityId);
+    this.previousPosition = this.properties.position;
+    this.previousRotation = this.properties.rotation;
+    this.getUserData()
+    if (!this.userData) {
+      this.userData = {};
+      this.userData.lightOn = false;
+      this.userData.soundIndex = Math.floor(Math.random() * soundURLs.length);
+      this.updateUserData();
+    }
+    this.sound = SoundCache.getSound(soundURLs[this.userData.soundIndex]);
+  }
+
+
+  this.getUserData = function() {
+    if (this.properties.userData) {
+      this.userData = JSON.parse(this.properties.userData);
+    }
+    return false;
+  }
+
+  this.updateUserData = function() {
+    Entities.editEntity(this.entityId, {
+      userData: JSON.stringify(this.userData)
+    });
+  }
+
+  this.clickReleaseOnEntity = function(entityId, mouseEvent) {
+    if (!mouseEvent.isLeftButton) {
+      return;
+    }
+    //first find closest light 
+    this.entityId = entityId
+    this.playSound();
+    this.properties = Entities.getEntityProperties(this.entityId)
+    this.light = this.findClosestLight();
+    if (this.light) {
+      this.lightProperties = Entities.getEntityProperties(this.light);
+      this.getUserData();
+      Entities.editEntity(this.light, {
+        visible: !this.userData.lightOn
+      });
+
+      this.userData.lightOn = !this.userData.lightOn;
+      this.updateUserData();
+      this.tryMoveLight();
+    }
+  }
+
+  this.playSound = function() {
+    if (this.sound && this.sound.downloaded) {
+      Audio.playSound(this.sound, {
+        position: this.properties.position,
+        volume: 0.3
+      });
+    } else {
+      print("Warning: Couldn't play sound.");
+    }
+  }
+
+  this.tryMoveLight = function() {
+    if (this.light) {
+      //compute offset position
+      var offsetPosition = Quat.multiply(Quat.inverse(this.previousRotation), Vec3.subtract(this.lightProperties.position, this.previousPosition));
+      var newPosition = Vec3.sum(this.properties.position, Vec3.multiplyQbyV(this.properties.rotation, offsetPosition));
+      if (!Vec3.equal(newPosition, this.lightProperties.position)) {
+        Entities.editEntity(this.light, {position: newPosition});
+      }
+      this.previousPosition = this.properties.position;
+      this.previousRotation = this.properties.rotation;
+    }
+
+  }
+
+  this.findClosestLight = function() {
+    var entities = Entities.findEntities(this.properties.position, 10);
+    var lightEntities = [];
+    var closestLight = null;
+    var nearestDistance = 20
+
+    for (var i = 0; i < entities.length; i++) {
+      var props = Entities.getEntityProperties(entities[i]);
+      if (props.type === "Light") {
+        var distance = Vec3.distance(props.position, this.properties.position)
+        if (distance < nearestDistance) {
+          closestLight = entities[i];
+          nearestDistance = distance
+        }
+      }
+    }
+    return closestLight;
+  }
+
+});