Moved update face normals to modifier class.

Author: ArtifactForms

src/main/java/mesh/modifier/UpdateFaceNormalsModifier.java

@@ -0,0 +1,18 @@
+package mesh.modifier;
+
+import mesh.Face3D;
+import mesh.Mesh3D;
+
+public class UpdateFaceNormalsModifier implements IMeshModifier {
+
+    @Override
+    public Mesh3D modify(Mesh3D mesh) {
+
+        for (Face3D face : mesh.faces) {
+            face.normal = mesh.calculateFaceNormal(face);
+        }
+
+        return mesh;
+    }
+
+}

src/main/java/workspace/render/Mesh3DRenderer.java

@@ -6,6 +6,7 @@
 import math.Vector3f;
 import mesh.Face3D;
 import mesh.Mesh3D;
+import mesh.modifier.UpdateFaceNormalsModifier;
 import mesh.selection.FaceSelection;
 import mesh.util.VertexNormals;
 import processing.core.PApplet;
@@ -90,7 +91,7 @@ public void drawFaces(Mesh3D mesh, Collection<Face3D> faces, Shading shading) {
 	private void drawFacesSmooth(Mesh3D mesh, Collection<Face3D> faces) {
 		context.pushMatrix();
 
-		mesh.updateFaceNormals();
+		mesh.apply(new UpdateFaceNormalsModifier());
 
 		VertexNormals normals = new VertexNormals(mesh);
 

src/test/java/mesh/modifier/subdivision/test/PlanarVertexCenterPlaneTest.java

@@ -10,6 +10,7 @@
 import mesh.Face3D;
 import mesh.Mesh3D;
 import mesh.creator.primitives.PlaneCreator;
+import mesh.modifier.UpdateFaceNormalsModifier;
 import mesh.modifier.subdivision.PlanarVertexCenterModifier;
 import util.MeshTestUtil;
 
@@ -88,7 +89,7 @@ public void resultMeshContainsPlaneCenter() {
     @Test
     public void faceNormalsPointingTowardsNegativeY() {
         Vector3f expectedNormal = new Vector3f(0, -1, 0);
-        plane.updateFaceNormals();
+        plane.apply(new UpdateFaceNormalsModifier());
         for (int i = 0; i < plane.getFaceCount(); i++) {
             Face3D face = plane.getFaceAt(i);
             assertEquals(expectedNormal, face.normal);