我是Java新手，我正在做一个简单的游戏。
游戏涉及很多方块四处移动，你必须点击它们才能消失，但我不知道该怎么做。我制作了所有的正方形，但是当它们（用鼠标）单击时，它们就会消失，这是我唯一需要的东西。怎么做？
以下是整个游戏的代码：
public static void main(String[] args) {
SimpleWindow w = new SimpleWindow (800, 800, "Square Killing");
Square sq1 = new Square (50, 50, 20); // Fyrkant nr 1
Square sq2 = new Square (100, 100, 20); // Fyrkant nr 2
Square sq3 = new Square (350, 350, 20); // Fyrkant nr 3
Square sq4 = new Square (600, 600, 20); // Fyrkant nr 4
Square sq5 = new Square (20, 20, 20); // Fyrkant nr 5
Square sq6 = new Square (250, 250, 20); // Fyrkant nr 6
Square sq7 = new Square (405, 405, 20); // Fyrkant nr 7
Square sq8 = new Square (591, 591, 20); // Fyrkant nr 8
Square sq9 = new Square (110, 110, 20); // Fyrkant nr 9
Square sq10 = new Square (230, 203, 20); // Fyrkant nr 10
Square sq11 = new Square (340, 340, 20); // Fyrkant nr 11
Square sq12 = new Square (320, 320, 20); // Fyrkant nr 12
int dx = 20; //F nr 1 hastighet x-led
int dy = 4; //F nr 1 hastighet y-led
int ex = 10; //F nr 2 hastighet x-led
int ey = 6; //F nr 2 hastighet y-led
int fx = 15; //F nr 3 hastighet x-led
int fy = 3; //F nr 3 hastighet y-led
int sx = 5; //F nr 4 hastighet x-led
int sy = 12; //F nr 4 hastighet y-led
int xx = 8; //F nr 5 hastighet x-led
int xy = 2; //F nr 5 hastighet y-led
int tx = 4; //F nr 6 hastighet x-led
int ty = 11; //F nr 6 hastighet y-led
int lx = 6; //F nr 7 hastighet x-led
int ly = 16; //F nr 7 hastighet y-led
int rx = 1; //F nr 8 hastighet x-led
int ry = 10; //F nr 8 hastighet y-led
int gx = 10; //F nr 9 hastighet x-led
int gy = 13; //F nr 9 hastighet y-led
int hx = 4; //F nr 10 hastighet x-led
int hy = 15; //F nr 10 hastighet y-led
int jx = 5; //F nr 11 hastighet x-led
int jy = 14; //F nr 11 hastighet y-led
int ux = 3; //F nr 12 hastighet x-led
int uy = 13; //F nr 12 hastighet y-led
while(true){
if(sq1.getX() < 20 || sq1.getX() + sq1.getSide() > w.getWidth())
dx = -dx;
if(sq1.getY() < 20 || sq1.getY() + sq1.getSide() > w.getHeight())
dy = -dy;
w.clear();
sq1.draw(w);
sq1.move(dx, dy);
if(sq2.getX() < 20 || sq2.getX() + sq2.getSide() > w.getWidth())
ex = -ex;
if(sq2.getY() < 20 || sq2.getY() + sq2.getSide() > w.getHeight())
ey = -ey;
sq2.draw(w);
sq2.move(ex, ey);
w.delay(2);
if(sq3.getX() < 20 || sq3.getX() + sq3.getSide() > w.getWidth())
fx = -fx;
if(sq3.getY() < 20 || sq3.getY() + sq3.getSide() > w.getHeight())
fy = -fy;
sq3.draw(w);
sq3.move(fx, fy);
w.delay(2);
if(sq4.getX() < 20 || sq4.getX() + sq4.getSide() > w.getWidth())
sx = -sx;
if(sq4.getY() < 20 || sq4.getY() + sq4.getSide() > w.getHeight())
sy = -sy;
sq4.draw(w);
sq4.move(sx, sy);
w.delay(1);
if(sq5.getX() < 20 || sq5.getX() + sq5.getSide() > w.getWidth())
xx = -xx;
if(sq5.getY() < 20 || sq5.getY() + sq5.getSide() > w.getHeight())
xy = -xy;
sq5.draw(w);
sq5.move(xx, xy);
w.delay(2);
if(sq6.getX() < 20 || sq6.getX() + sq6.getSide() > w.getWidth())
tx = -tx;
if(sq6.getY() < 20 || sq6.getY() + sq6.getSide() > w.getHeight())
ty = -ty;
sq6.draw(w);
sq6.move(tx, ty);
w.delay(2);
if(sq7.getX() < 20 || sq7.getX() + sq7.getSide() > w.getWidth())
lx = -lx;
if(sq7.getY() < 20 || sq7.getY() + sq7.getSide() > w.getHeight())
ly = -ly;
sq7.draw(w);
sq7.move(lx, ly);
w.delay(1);
if(sq8.getX() < 20 || sq8.getX() + sq8.getSide() > w.getWidth())
rx = -rx;
if(sq8.getY() < 20 || sq8.getY() + sq8.getSide() > w.getHeight())
ry = -ry;
sq8.draw(w);
sq8.move(rx, ry);
w.delay(2);
if(sq9.getX() < 20 || sq9.getX() + sq9.getSide() > w.getWidth())
gx = -gx;
if(sq9.getY() < 20 || sq9.getY() + sq9.getSide() > w.getHeight())
gy = -gy;
sq9.draw(w);
sq9.move(gx, gy);
w.delay(2);
if(sq10.getX() < 20 || sq10.getX() + sq10.getSide() > w.getWidth())
hx = -hx;
if(sq10.getY() < 20 || sq10.getY() + sq10.getSide() > w.getHeight())
hy = -hy;
sq10.draw(w);
sq10.move(hx, hy);
w.delay(2);
if(sq11.getX() < 20 || sq11.getX() + sq11.getSide() > w.getWidth())
jx = -jx;
if(sq11.getY() < 20 || sq11.getY() + sq11.getSide() > w.getHeight())
jy = -jy;
sq11.draw(w);
sq11.move(jx, jy);
w.delay(2);
if(sq12.getX() < 20 || sq12.getX() + sq12.getSide() > w.getWidth())
ux = -ux;
if(sq12.getY() < 20 || sq12.getY() + sq12.getSide() > w.getHeight())
uy = -uy;
sq12.draw(w);
sq12.move(ux, uy);
w.delay(2);
switch ((int) (Math.random() *12)) { //De olika färgerna på rutorna
case 1: w.setLineColor(java.awt.Color.RED); break;
case 2: w.setLineColor(java.awt.Color.BLUE); break;
case 3: w.setLineColor(java.awt.Color.GREEN); break;
case 4: w.setLineColor(java.awt.Color.PINK); break;
case 5: w.setLineColor(java.awt.Color.YELLOW); break;
case 6: w.setLineColor(java.awt.Color.CYAN); break;
case 7: w.setLineColor(java.awt.Color.ORANGE); break;
case 9: w.setLineColor(java.awt.Color.LIGHT_GRAY); break;
}
}
}
}