added animation that makes the santa go up and down and randomly chan…

…ge color and thickness

src/edu/ucsb/cs56/W14/drawings/krbriggs/advanced/AnimatedPictureViewer.java

@@ -0,0 +1,105 @@
+package edu.ucsb.cs56.w14.drawings.krbriggs.advanced;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+import java.util.Random;
+
+public class AnimatedPictureViewer {
+
+    private DrawPanel panel = new DrawPanel();
+
+    private SantaWithHat santa = new SantaWithHat(400, 50, 19);
+
+    Thread anim;   
+
+    private int x = 300;
+    private int y = 100;
+
+    private int dy = 5;
+
+    public static void main (String[] args) {
+      new AnimatedPictureViewer().go();
+    }
+
+    public void go() {
+      JFrame frame = new JFrame();
+      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+      frame.getContentPane().add(panel);
+      frame.setSize(640,480);
+      frame.setVisible(true);
+
+      frame.getContentPane().addMouseListener(new MouseAdapter() {
+        public void mouseEntered(MouseEvent e){
+        System.out.println("mouse entered");
+          anim = new Animation();
+          anim.start();
+        }
+
+        public void mouseExited(MouseEvent e){        
+          System.out.println("Mouse exited");
+          // Kill the animation thread
+          anim.interrupt();
+          while (anim.isAlive()){}
+          anim = null;         
+          panel.repaint();        
+        }
+      });
+
+    } // go()
+
+    class DrawPanel extends JPanel {
+       public void paintComponent(Graphics g) {
+
+        Graphics2D g2 = (Graphics2D) g;
+
+         // Clear the panel first
+          g2.setColor(Color.white);
+          g2.fillRect(0,0,this.getWidth(), this.getHeight());
+
+	//random colors
+	  int R = (int)(Math.random()*256);
+	int G = (int)(Math.random()*256);
+	int B= (int)(Math.random()*256);
+	Color color = new Color(R, G, B); //random color, but can be bright or dull
+
+
+
+          // Draw the santa
+	//random thickness
+	float ra = (float)(Math.random()*10);
+	Stroke thick = new BasicStroke (ra, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL); 
+	Stroke orig=g2.getStroke();
+	g2.setStroke(thick);
+          g2.setColor(color);
+          SantaWithHat test = new SantaWithHat(x, y, 19);
+          g2.draw(test);
+       }
+    }
+
+    class Animation extends Thread {
+      public void run() {
+        try {
+          while (true) {
+            // Bounce off the walls
+
+            if (y >= 350) { dy = -5; }
+            if (y <= 50) { dy = 5; }
+
+            y += dy;                
+            panel.repaint();
+            Thread.sleep(50);
+          }
+        } catch(Exception ex) {
+          if (ex instanceof InterruptedException) {
+            // Do nothing - expected on mouseExited
+          } else {
+            ex.printStackTrace();
+            System.exit(1);
+          }
+        }
+      }
+    }
+
+}