Clone current camera position

This allows the plugin to be impervious to changes in the SH3D home
viewing angle and will ensure all renders are from the same vantage
point.

Author: shmuelzon

src/com/shmuelzon/HomeAssistantFloorPlan/Controller.java

@@ -39,6 +39,7 @@ public enum Renderer {YAFARAY, SUNFLOW}
     public enum Quality {HIGH, LOW}
 
     private Home home;
+    private Camera camera;
     private Map<String, List<HomeLight>> lights;
     private Map<String, Map<String, List<HomeLight>>> lightsGroups;
     private List<String> lightsNames;
@@ -77,6 +78,7 @@ public StateIcon(String name, Point2d position, String type, String action, Stri
 
     public Controller(Home home) {
         this.home = home;
+        camera = home.getCamera().clone();
         propertyChangeSupport = new PropertyChangeSupport(this);
         lights = getEnabledLights();
         lightsGroups = getLightsGroups(lights);
@@ -330,7 +332,6 @@ private List<HomePieceOfFurniture> getHomeAssistantEntities() {
     }
 
     private void build3dProjection() {
-        Camera camera = home.getCamera();
         cameraPosition = new Vector4d(camera.getX(), camera.getZ(), camera.getY(), 0);
 
         Transform3D yawRotation = new Transform3D();
@@ -398,7 +399,7 @@ private BufferedImage renderScene() throws IOException {
             rendererToClassName.get(renderer),
             home, null, this.quality == Quality.LOW ? AbstractPhotoRenderer.Quality.LOW : AbstractPhotoRenderer.Quality.HIGH);
         BufferedImage image = new BufferedImage(renderWidth, renderHeight, BufferedImage.TYPE_INT_RGB);
-        photoRenderer.render(image, home.getCamera(), null);
+        photoRenderer.render(image, camera, null);
 
         return image;
     }