Java Swing animation (2)

Java Swing animation (2)
I. animation effect: it realizes the animation effect of airplane flight and the movement of aircraft.

II. Implementation principle:

1. Aircraft Flight effect: in fact, it is still rewritten.PaintComponent,Changing images at a certain interval will have the flight effect.,Animation is to change the image.

2. Mobile Aircraft: implements the KeyListener interface, which can receive Keyboard Events. Use this panel container to listen for some events.

Iii. Code:

Package com. jack; import java. awt. gridLayout; import java. awt. list; import javax. swing. JFrame;/***** @ author laughing * @ date 8:11:39 on January 1, November 16, 2014 */public class Main extends JFrame {GamePanelpanel = new GamePanel (); public Main () {setSize (panel. getWidth (), panel. getHeight (); getContentPane (). add (panel); setVisible (true); setResizable (false); setdefaclocloseoperation (JFrame. EXIT_ON_CLOSE); setLocationRelativeTo (this);} public static void main (String args []) {new Main ();}}

Package com. jack; import java. awt. color; import java. awt. graphics; import java. awt. graphics2D; import java. awt. image; import java. awt. event. keyEvent; import java. awt. event. keyListener; import java. io. IOException; import javax. imageio. imageIO; import javax. swing. JPanel; import javax. swing. border. softBevelBorder;/***** @ author laughing ** @ date 7:58:11 on January 1, November 16, 2014 */public class GamePanel extends JPanel implements Runnable, KeyListener {private static final intHEIGHT = 480; private static final intWEIGHT = 320; Image [] plans = new Image [6]; intpos = 0; intx = WEIGHT/2; inty = 408; final intstep = 10; public GamePanel () {setSize (WEIGHT, HEIGHT); setBorder (new SoftBevelBorder (1, Color. white, Color. white); // Sets the focusable state of this Component to the specified value. // This value overrides the Component's default focusability. setFocusable (true); // listener event addKeyListener (this); new Thread (this ). start ();}/** (non-Javadoc) ***** @ see javax. swing. JComponent # paintComponent (java. awt. graphics) */@ Overrideprotected void paintComponent (Graphics g0) {// TODO Auto-generated method stubsuper. paintComponent (g0); Graphics2D g = (Graphics2D) g0; try {for (int I = 0; I <6; I ++) {plans [I] = ImageIO. read (this. getClass (). getResource (".. /.. /images/plan _ "+ I + ". png ");} g. drawImage (plans [pos], x, y, this);} catch (IOException e) {// TODO Auto-generated catch blocke. printStackTrace () ;}}/** (non-Javadoc) ** @ see java. lang. runnable # run () */@ Overridepublic void run () {// TODO Auto-generated method stubwhile (true) {try {pos ++; if (pos = 5) pos = 0; Thread. sleep (100);} catch (InterruptedException e) {// TODO Auto-generated catch blocke. printStackTrace ();} repaint () ;}}/** (non-Javadoc) ** @ see java. awt. event. keyListener # keyTyped (java. awt. event. keyEvent) * // @ Overridepublic void keyTyped (KeyEvent e) {// TODO Auto-generated method stub}/** (non-Javadoc) ** @ see java. awt. event. keyListener # keyPressed (java. awt. event. keyEvent) */@ Overridepublic void keyPressed (KeyEvent e) {int key = e. getKeyCode (); if (key = KeyEvent. VK_UP) {if (y-step> = 0) {y-= step ;}} if (key = KeyEvent. VK_DOWN) {if (y + step <= HEIGHT-plans [0]. getHeight (null) * 2) {y + = step;} if (key = KeyEvent. VK_LEFT) {if (x-step> = 0) x-= step;} if (key = KeyEvent. VK_RIGHT) {if (x + step <WEIGHT-plans [0]. getWidth (null) x + = step;}/** (non-Javadoc) ** @ see java. awt. event. keyListener # keyReleased (java. awt. event. keyEvent) * // @ Overridepublic void keyReleased (KeyEvent e) {// TODO Auto-generated method stub }}

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