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AnimatedApplet Showcase
Here you can see some samples of how little code is required to create nice effects in Applets if you use one of the AnimatedApplets as superclass. The code is shown to the right of the applet.
MotionApplet subclassing AnimatedApplet
	import java.awt.; public class MotionApplet extends AnimatedApplet { int x = 98; int y = 67; int deltaX = -2; int deltaY = 1; public void customInit(){setBackgroundColor(Color.green);} public void customRun() { //figure out where we are going to end if we continue int newX = x + deltaX; int newY = y + deltaY; //if we're about to hit the side, reverse movement on X-axis if (newX <= 10 \|\| newX >= getWidth() -10) deltaX =-1; else x = newX; //if we're about to hit the top/bottom, reverse movement on Y-axis if (newY <= 10 \|\| newY >= getHeight() -10) deltaY *=-1; else y = newY; } public void customPaint(Graphics g) { g.setColor(Color.white); g.fillOval(x-10, y-10, 20,20); } }
FollowingApplet subclassing AnimatedMouseApplet
	import java.util.; import java.awt.; import java.awt.event.; public class FollowingApplet extends AnimatedMouseApplet { private Point follower; private double distance ; //use the customInit method to initialize the follower Point public void customInit() { setBackgroundColor(new Color(200,100,50)); getBackgroundGraphics().drawString("Ball follows mouse", 10,10); follower = new Point(getWidth()/2, getHeight()/2); } //do the custom painting we need done public void customPaint(Graphics g) { g.setColor(Color.yellow); g.fillOval(follower.x-10, follower.y-10, 20,20); } //what we want done in our run method public void customRun() { int speed = 3; follower.x += (getMouseX() > follower.x ? 1:-1)speed; follower.y += (getMouseY() > follower.y ? 1:-1)*speed; } }
TrailerApplet subclassing AnimatedMouseApplet
	import java.util.; import java.awt.; import java.awt.event.*; public class TrailerApplet extends AnimatedMouseApplet { private Vector points; public void customInit() { points = new Vector(); } public void customPaint( Graphics g) { Graphics back = getBackgroundGraphics(); back.setColor(Color.green); back.fillOval(getMouseX()-25, getMouseY()-25, 50,50); Point p = null; back.setColor(Color.blue); for (int i=0; i < points.size();i++) { p = (Point)points.elementAt(i); back.fillOval(p.x-10, p.y-10, 20,20); } g.drawString("Draw lines by moving mouse and dots by clicking", 10,10); g.setColor(Color.red); g.fillRect((int)(100+(System.currentTimeMillis() % 2000)/20),100,50,50); } public void customMousePressed(MouseEvent e) { points.add(new Point(getMouseX(), getMouseY())); } }
DroppingApplet subclassing AnimatedMouseApplet
	import java.util.; import java.awt.; import java.awt.event.*; public class DroppingApplet extends AnimatedMouseApplet { private Vector points; //holds the Point objects while they are alive private char currentKey; //what key was last pressed //use the customInit method to initialize the Vector public void customInit(){ points = new Vector(); setBackgroundColor(Color.gray); getBackgroundGraphics().setColor(Color.blue); getBackgroundGraphics().drawString("Spawn bubbles by clicking", 10,10); } //do the custom painting we need done public void customPaint( Graphics g) { Point p = null; g.setColor(Color.blue); for (int i=0; i < points.size();i++) { p = (Point)points.elementAt(i); g.fillOval(p.x-10, p.y-10, 20, 20); if (p.y < 30) points.removeElementAt(i); } g.setColor(Color.blue); g.drawString(points.size() + " bubbles alive", 10,25); } //if the mouse is pressed, we add a Point object to the Vector at that x,y coordinate public void customMousePressed(MouseEvent e){ points.add(new Point(getMouseX(), getMouseY())); } //what we want done in our run method public void customRun(){for (int i=0; i < points.size();i++)((Point)points.elementAt(i)).y--;} }
DroppingKeyApplet subclassing AnimatedInputApplet
	import java.util.; import java.awt.; import java.awt.event.*; public class DroppingKeyApplet extends AnimatedInputApplet { private Vector points; //holds the Point objects while they are alive private char currentKey; //what key was last pressed //use the customInit method to initialize the Vector public void customInit(){ points = new Vector(); currentKey = 'A'; getMixerGraphics().setFont(new Font("Times Roman", Font.BOLD, 20)); } //do the custom painting we need done public void customPaint( Graphics g) { g.setColor(Color.yellow); g.drawString(points.size() + " characters alive", 10,20); g.drawString("Try typing other characters....", 10,40); Point p = null; g.setColor(Color.blue); for (int i=0; i < points.size();i++) { p = (Point)points.elementAt(i); g.drawString(Character.toString(currentKey),p.x, p.y); if (p.y > this.getHeight() + 20) points.removeElementAt(i); } } //if the mouse is pressed, we add a Point object to the Vector at that x,y coordinate public void customMousePressed(MouseEvent e){ points.add(new Point(getMouseX(), getMouseY())); } //what we want done in our run method public void customRun(){for (int i=0; i < points.size();i++)((Point)points.elementAt(i)).y++;} public void customKeyPressed(KeyEvent ke) { currentKey = ke.getKeyChar(); } }