Adding mouse wheel sizing voxel

examples/editVoxels.js

@@ -23,6 +23,7 @@ var NEW_VOXEL_DISTANCE_FROM_CAMERA = 3.0;
 var ORBIT_RATE_ALTITUDE = 200.0;
 var ORBIT_RATE_AZIMUTH = 90.0;
 var PIXELS_PER_EXTRUDE_VOXEL = 16;
+var WHEEL_PIXELS_PER_SCALE_CHANGE = 100;
 
 var oldMode = Camera.getMode();
 
@@ -42,6 +43,8 @@ var lastVoxelPosition = { x: 0, y: 0, z: 0 };
 var lastVoxelColor = { red: 0, green: 0, blue: 0 };
 var lastVoxelScale = 0;
 var dragStart = { x: 0, y: 0 };
+var wheelPixelsMoved = 0;
+
 
 var mouseX = 0;
 var mouseY = 0; 
@@ -971,6 +974,25 @@ function update() {
     }
 }
 
+function wheelEvent(event) {
+    wheelPixelsMoved += event.delta;
+    if (Math.abs(wheelPixelsMoved) > WHEEL_PIXELS_PER_SCALE_CHANGE)
+    {
+        if (!pointerVoxelScaleSet) {
+            pointerVoxelScale = 1.0;
+            pointerVoxelScaleSet = true;
+        }
+        if (wheelPixelsMoved > 0) {
+            pointerVoxelScale /= 2.0;  
+        } else {
+            pointerVoxelScale *= 2.0;
+        }
+        print("new scale " + pointerVoxelScale);
+        wheelPixelsMoved = 0;
+    }
+}
+
+Controller.wheelEvent.connect(wheelEvent);
 Controller.mousePressEvent.connect(mousePressEvent);
 Controller.mouseReleaseEvent.connect(mouseReleaseEvent);
 Controller.mouseMoveEvent.connect(mouseMoveEvent);

libraries/script-engine/src/Vec3.cpp

@@ -23,7 +23,7 @@ glm::vec3 Vec3::multiplyQbyV(const glm::quat& q, const glm::vec3& v) {
     return q * v;
 }
 
-glm::vec3 Vec3::sum(const glm::vec3& v1, const glm::vec3& v2) {
+glm::vec3 Vec3::sum(const glm::vec3& v1, const glm::vec3& v2) { 
     return v1 + v2;
 }
 glm::vec3 Vec3::subtract(const glm::vec3& v1, const glm::vec3& v2) {