added spawner script for spray paint toy

examples/sprayPaintSpawner.js

@@ -0,0 +1,74 @@
+//  sprayPaintSpawner.js
+//
+//  Created by Eric Levin on 9/3/15
+//  Copyright 2015 High Fidelity, Inc.
+//
+//  This is script spwans a spreay paint can model with the sprayPaintCan.js entity script attached
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+
+var scriptURL = "entityScripts/sprayPaintCan.js";
+var center = Vec3.sum(MyAvatar.position, Vec3.multiply(1, Quat.getFront(Camera.getOrientation())));
+
+var paintGun = Entities.addEntity({
+ type: "Model",
+ modelURL: "https://hifi-public.s3.amazonaws.com/eric/models/sprayGun.fbx?=v4",
+ position: center,
+ dimensions: {
+     x: 0.03,
+     y: 0.15,
+     z: 0.34
+ },
+ collisionsWillMove: true,
+ shapeType: 'box',
+ script: scriptURL
+});
+
+var whiteboard = Entities.addEntity({
+    type: "Box",
+    position: center,
+    dimensions: {
+        x: 2,
+        y: 1.5,
+        z: .01
+    },
+    rotation: orientationOf(Vec3.subtract(MyAvatar.position, center)),
+    color: {
+        red: 250,
+        green: 250,
+        blue: 250
+    },
+    // visible: false
+});
+
+function cleanup() {
+    Entities.deleteEntity(paintGun);
+    Entities.deleteEntity(whiteboard);
+}
+
+
+Script.scriptEnding.connect(cleanup);
+
+
+function orientationOf(vector) {
+    var Y_AXIS = {
+        x: 0,
+        y: 1,
+        z: 0
+    };
+    var X_AXIS = {
+        x: 1,
+        y: 0,
+        z: 0
+    };
+
+    var theta = 0.0;
+
+    var RAD_TO_DEG = 180.0 / Math.PI;
+    var direction, yaw, pitch;
+    direction = Vec3.normalize(vector);
+    yaw = Quat.angleAxis(Math.atan2(direction.x, direction.z) * RAD_TO_DEG, Y_AXIS);
+    pitch = Quat.angleAxis(Math.asin(-direction.y) * RAD_TO_DEG, X_AXIS);
+    return Quat.multiply(yaw, pitch);
+}