From ddce8d5a3a8a63a95774a9404ed8edbc014029da Mon Sep 17 00:00:00 2001
From: ericrius1 <ericrius1>
Date: Fri, 19 Feb 2016 10:59:05 -0800
Subject: [PATCH] Marker basics working, now just need to tweak

---
 .../whiteboardV2/markerEntityScript.js        | 43 +++++++++++++++++--
 1 file changed, 40 insertions(+), 3 deletions(-)

diff --git a/examples/homeContent/whiteboardV2/markerEntityScript.js b/examples/homeContent/whiteboardV2/markerEntityScript.js
index d3a4f97fe9..e879b71144 100644
--- a/examples/homeContent/whiteboardV2/markerEntityScript.js
+++ b/examples/homeContent/whiteboardV2/markerEntityScript.js
@@ -16,6 +16,7 @@
 
     MarkerTip = function() {
         _this = this;
+        _this.MARKER_TEXTURE_URL = "https://s3-us-west-1.amazonaws.com/hifi-content/eric/textures/paintStroke.png";
     };
 
     MarkerTip.prototype = {
@@ -42,12 +43,48 @@
             var intersection = Entities.findRayIntersection(pickRay, true);
 
             if (intersection.intersects) {
-                var name = Entities.getEntityProperties(intersection.entityID);
 
-                this.paint()
+                this.paint(intersection.intersection)
             }
         },
 
+        newStroke: function(position) {
+            _this.strokeBasePosition = position;
+            _this.currentStroke = Entities.addEntity({
+                type: "PolyLine",
+                name: "marker stroke",
+                dimensions: {
+                    x: 10,
+                    y: 10,
+                    z: 10
+                },
+                position: position,
+                textures: _this.MARKER_TEXTURE_URL,
+                color: {red: 0, green: 10, blue: 200}
+            });
+
+            _this.linePoints = [];
+            _this.normals = [];
+            _this.strokeWidths = [];
+        },
+
+        paint: function(position) {
+            if (!_this.currentStroke) {
+                _this.newStroke(position);
+            }
+
+            var localPoint = Vec3.subtract(position, this.strokeBasePosition);
+            _this.linePoints.push(localPoint);
+            _this.normals.push(_this._whiteboardNormal);
+            this.strokeWidths.push(0.02);
+
+            Entities.editEntity(_this.currentStroke, {
+                linePoints: _this.linePoints,
+                normals: _this.normals,
+                strokeWidths: _this.strokeWidths
+            });
+        },
+
         preload: function(entityID) {
             this.entityID = entityID;
             print("EBL PRELOAD");
@@ -56,7 +93,7 @@
         setWhiteboard: function(myId, data) {
             _this.whiteboard = JSON.parse(data[0]);
             var props = Entities.getEntityProperties(_this.whiteboard, ["rotation"]);
-            Entities.editEntity(_this.whiteboard, {position: {x: 0, y: 1, z: 0}});
+            this._whiteboardNormal = Vec3.multiply(Quat.getFront(props.rotation), -1);
         }
     };