import
java.awt.*;
import
java.awt.event.*;
import
javax.swing.ImageIcon;
import
javax.swing.SwingUtilities;
public
class
Look extends
Core implements
MouseMotionListener, KeyListener {
public
static
void
main(String[] args) {
new
Look().run();
}
private
Image bg;
private
Robot robot;
private
Point mouse;
→
鼠標的位置
private
Point center;
→
屏幕中心的位置
private
Point image;
→ 圖像的位置
private
boolean
centering;
//init
public
void
init() {
super.init();
mouse
= new
Point();
center
= new
Point();
image
= new
Point();
centering
= false;
try
{
robot
= new
Robot();
recenterMouse();
mouse.x
= center.x;
mouse.y
= center.y;
}
catch
(Exception ex) {
System.out.println("Exception
1");
}
Window
w = s.getFullScreenWindow();
w.addMouseMotionListener(this);
w.addKeyListener(this);
bg
= new
ImageIcon("C://baby.png").getImage();
}
//繪製方法
public
synchronized
void
draw(Graphics2D g) {
int
w = s.getWidth();
int
h = s.getHeight();
image.x
%= w;
image.y
%= h;
if
(image.x
< 0) {
image.x
+= w;
}
if
(image.y
< 0) {
image.y
+= h;
}
int
x = image.x;
int
y = image.y;
g.drawImage(bg,
x, y, null);
g.drawImage(bg,
x-w, y, null);
g.drawImage(bg,
x, y-h, null);
g.drawImage(bg,
x-w, y-h, null);
}
//使用Robotrecenter鼠標
private
synchronized
void
recenterMouse() {
Window
w = s.getFullScreenWindow();
if
(robot
!= null
&& w.isShowing()) {
center.x
= w.getWidth() / 2;
center.y
= w.getHeight() / 2;
SwingUtilities.convertPointToScreen(center,
w); →
這是內置方法將Point轉到屏幕
centering
= true;
robot.mouseMove(center.x,
center.y);
}
}
//mousemotion的監聽器
public
void
mouseDragged(MouseEvent e) {
mouseMoved(e);
}
public
synchronized
void
mouseMoved(MouseEvent e) {
if
(centering
&& center.x
== e.getX() && center.y
== e.getY()) {
centering
= false;
}
else
{
int
dx = e.getX() - mouse.x;
int
dy = e.getY() - mouse.y;
image.x
+= dx;
image.y
+= dy;
recenterMouse();
}
mouse.x
= e.getX();
mouse.y
= e.getY();
}
//KeyListener
public
void
keyPressed(KeyEvent e) {
if
(e.getKeyCode() == KeyEvent.VK_ESCAPE)
{
stop();
}
}
public
void
keyReleased(KeyEvent e) {}
public
void
keyTyped(KeyEvent e) {}
}
如果你運行這個程序：背景會覆蓋屏幕，你可以拖動鼠標和鼠標點總是在中心
