Cleaned Camera code

src/engine/Camera.java

@@ -1,42 +1,39 @@
 package engine;
 
 import shapes.Line;
-import shapes.Shape;
 import shapes.Vector2;
 
 import java.util.ArrayList;
 import java.util.List;
 
 public class Camera extends Renderer{
-
-  // position at 0,0,0,0
-  // rotation towards positive z axis
-
   private double focalLength;
   private double clipping = 0.001;
-  private Vector3 position;
+  private Vector3 pos;
 
-  public Camera(double focalLength, Vector3 position) {
+  public Camera(double focalLength, Vector3 pos) {
     this.focalLength = focalLength;
-    this.position = position;
+    this.pos = pos;
   }
 
   public List<Line> draw(WorldObject worldObject) {
     List<Vector2> vertices = new ArrayList<>();
+
     for(Vector3 vertex : worldObject.getVertices()) {
-      vertices.add(this.project(vertex));
+      vertices.add(project(vertex));
     }
 
-    return this.getFrame(vertices, worldObject.getEdgeData());
+    return getFrame(vertices, worldObject.getEdgeData());
   }
 
   private Vector2 project(Vector3 vertex) {
-    if(vertex.getZ() - this.position.getZ() < clipping) {
+    if(vertex.getZ() - pos.getZ() < clipping) {
       return new Vector2(0, 0);
     }
+
     return new Vector2(
-      vertex.getX() * focalLength / (vertex.getZ() - this.position.getZ()) + this.position.getX(),
-      vertex.getY() * focalLength / (vertex.getZ() - this.position.getZ()) + this.position.getY()
+      vertex.getX() * focalLength / (vertex.getZ() - pos.getZ()) + pos.getX(),
+      vertex.getY() * focalLength / (vertex.getZ() - pos.getZ()) + pos.getY()
     );
   }
 }