Implement blank window.

Co-authored-by: sigonasr2 <sigonasr2@gmail.com>

src/sig/Panel.java

@@ -0,0 +1,10 @@
+package sig;
+
+import javax.swing.JPanel;
+import java.awt.Graphics;
+
+public class Panel extends JPanel{
+    public void paintComponent(Graphics g) {
+
+    }
+}

src/sig/SigRenderer.java

@@ -1,16 +1,91 @@
 package sig;
 import javax.swing.JFrame;
 import javax.vecmath.Vector3d;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener; 
+import java.awt.event.MouseMotionListener; 
 
-public class SigRenderer {
+public class SigRenderer implements MouseListener,MouseMotionListener{
     Vector3d vec;
+    public final static int SCREEN_WIDTH=1280;
+    public final static int SCREEN_HEIGHT=720;
+    public final static long TIMEPERTICK = 16666667l;
+    public static double DRAWTIME=0;
+
+    public void runGameLoop() {
+
+    }
 
     SigRenderer(JFrame f) {
         vec = new Vector3d();
         System.out.println(vec);   
+
+        Panel p = new Panel();
+
+        new Thread() {
+            public void run(){
+                while (true) {
+                    long startTime = System.nanoTime();
+                    runGameLoop();
+                    p.repaint();
+                    long endTime = System.nanoTime();
+                    long diff = endTime-startTime;
+                    if (diff>TIMEPERTICK) { //Took longer than 1/60th of a second. No sleep.
+                        System.err.println("Frame Drawing took longer than "+TIMEPERTICK+"ns to calculate ("+diff+"ns total)!");
+                    } else {
+                        try {
+                            long sleepTime = TIMEPERTICK - diff;
+                            long millis = (sleepTime)/1000000;
+                            int nanos = (int)(sleepTime-(((sleepTime)/1000000)*1000000));
+                            //System.out.println("FRAME DRAWING: Sleeping for ("+millis+"ms,"+nanos+"ns) - "+(diff)+"ns");
+                            DRAWTIME = (double)diff/1000000;
+                            f.setTitle("Game Loop: "+DRAWTIME+"ms");
+                            Thread.sleep(millis,nanos);
+                        } catch (InterruptedException e) {
+                            e.printStackTrace();
+                        }
+                    }
+                }
+            }
+        }.start();
+
+        f.getContentPane().addMouseListener(this);
+        f.getContentPane().addMouseMotionListener(this);
+        f.add(p);
+        f.setSize(SCREEN_WIDTH,SCREEN_HEIGHT);
+        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        f.setVisible(true);
     }
     public static void main(String[] args) {
         JFrame f = new JFrame("SigRenderer");
         new SigRenderer(f);
     }
+
+    @Override
+    public void mouseClicked(MouseEvent e) {
+    }
+
+    @Override
+    public void mousePressed(MouseEvent e) {
+    }
+
+    @Override
+    public void mouseReleased(MouseEvent e) {
+    }
+
+    @Override
+    public void mouseEntered(MouseEvent e) {
+    }
+
+    @Override
+    public void mouseExited(MouseEvent e) {
+    }
+
+    @Override
+    public void mouseDragged(MouseEvent e) {
+    }
+
+    @Override
+    public void mouseMoved(MouseEvent e) {
+    }
 }