我已经完成并为我的对象制作了类，并在我的绘图组件中调用它们，但我实际上无法让它们移动。这是我在对象类中的移动和检查墙程序：
while(true) // infinite loop
{
jelly1.move();
frame.repaint();
try
{
Thread.sleep(10);
}
catch(Exception e){}
}
以下是我给他们的电话：
public class BackgroundComponent extends JComponent {
Jellyfish jelly1;
Jellyfish jelly2;
Jellyfish jelly3;
Diver diver;
public BackgroundComponent() {
diver = new Diver(100, 300);
jelly1 = new Jellyfish(450, 450);
jelly2 = new Jellyfish(150, 300);
jelly3 = new Jellyfish(350, 75);
diver = new Diver(100, 300);
}
public void paintComponent(Graphics g){
//Drawing instructions go here
//Recover Graphics2D
Graphics2D g2 = (Graphics2D)g;
//Make gradient
g2.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
int w = getWidth();
int h = getHeight();
Color color1 = Color.CYAN;
Color color2 = Color.BLACK;
GradientPaint gp = new GradientPaint(0, 0, color1, 0, h, color2);
g2.setPaint(gp);
g2.fillRect(0, 0, w, h);
//Constructs rectangles on edge of screen and draws them
Rectangle box = new Rectangle(0,0,75,700);
g.setColor(Color.LIGHT_GRAY);
g2.fill(box);
Rectangle box2 = new Rectangle(625, 0, 75, 700);
g.setColor(Color.LIGHT_GRAY);
g2.fill(box2);
//Draws lines, with a stroke of 5, over rectangles
Line2D.Double segment = new Line2D.Double(10, 0, 10, 700);
g2.setStroke(new BasicStroke(5));
g.setColor(Color.GRAY);
g2.draw(segment);
Line2D.Double segment2 = new Line2D.Double(30, 0, 30, 700);
g.setColor(Color.GRAY);
g2.draw(segment2);
Line2D.Double segment3 = new Line2D.Double(50, 0, 50, 700);
g.setColor(Color.GRAY);
g2.draw(segment3);
Line2D.Double segment4 = new Line2D.Double(70, 0, 70, 700);
g.setColor(Color.GRAY);
g2.draw(segment4);
Line2D.Double segment5 = new Line2D.Double(690, 0, 690, 700);
g.setColor(Color.GRAY);
g2.draw(segment5);
Line2D.Double segment6 = new Line2D.Double(670, 0, 670, 700);
g.setColor(Color.GRAY);
g2.draw(segment6);
Line2D.Double segment7 = new Line2D.Double(650, 0, 650, 700);
g.setColor(Color.GRAY);
g2.draw(segment7);
Line2D.Double segment8 = new Line2D.Double(630, 0, 630, 700);
g.setColor(Color.GRAY);
g2.draw(segment8);
//Draws rectangle around title with thick boarder
Rectangle box3 = new Rectangle(40,40,620,75);
g.setColor(Color.WHITE);
g2.setStroke(new BasicStroke(5));
g2.draw(box3);
//Drawing text
String title = "Through the Depths";
//Sets font, font size, and color
g.setFont(new Font("Purisa", Font.BOLD, 50));
g.setColor(Color.DARK_GRAY);
g2.drawString(title, (50), 100);
//Places same text slightly up and over
g.setFont(new Font("Purisa", Font.BOLD, 50));
g.setColor(Color.WHITE);
g2.drawString(title, 53, 97);
//Draws ellipses with a stroke of 2 (these are the bubbles)
Ellipse2D.Double ellipse = new Ellipse2D.Double(450, 200, 150, 150);
g2.setStroke(new BasicStroke(2));
g2.draw(ellipse);
Ellipse2D.Double ellipse2 = new Ellipse2D.Double(510, 375, 90, 90);
g2.draw(ellipse2);
Ellipse2D.Double ellipse3 = new Ellipse2D.Double(470, 485, 70, 70);
g2.draw(ellipse3);
Ellipse2D.Double ellipse4 = new Ellipse2D.Double(510, 580, 45, 45);
g2.draw(ellipse4);
// Draws curves for bubbles
QuadCurve2D q = new QuadCurve2D.Float();
q.setCurve(548, 210, 607, 240, 590, 295);
g2.setStroke(new BasicStroke(3));
g2.draw(q);
QuadCurve2D q2 = new QuadCurve2D.Float();
q2.setCurve(575, 387, 607, 415, 585, 445);
g2.draw(q2);
QuadCurve2D q3 = new QuadCurve2D.Float();
g2.setStroke(new BasicStroke(2));
q3.setCurve(515, 493, 545, 511, 528, 540);
g2.draw(q3);
QuadCurve2D q4 = new QuadCurve2D.Float();
g2.setStroke(new BasicStroke(1));
q4.setCurve(538, 585, 558, 595, 545, 617);
g2.draw(q4);
// Sets color to pink before drawing jellyfish
g.setColor(Color.PINK);
//draws jellyfish
jelly1.draw(g);
jelly2.draw(g);
jelly3.draw(g);
// Draws diver
diver.draw(g);
while(true) // infinite loop
{
jelly1.move();
repaint();
try
{
Thread.sleep(10);
}
catch(Exception e){}
}
}
}
另外我觉得有必要提一下我有背景和背景组件。 while（true）位于后台组件中，因为它是创建对象的位置。并且框架在主方法所在的背景中设置可见。
Paint组件如下：
{{1}}
答案 0 :(得分：1)
while(true){ ... }实施中的 Thread.Sleep和paintComponent完全是错误的做事方式。通过这样做，您完全阻止了Event Dispatching Thread，这意味着您的用户界面将无法再正常更新，并且用户界面将不再具有响应能力。
你应该做什么：
while(true){ ... }覆盖paintComponent循环
javax.swing.Timer，将其设置为每10毫秒运行一次ActionListener.actionPerformed实施中 - 每10毫秒执行一次的操作 - 移动果冻并呼叫repaint 此计时器的简化示例，基于您的代码段：
new javax.swing.Timer( 10, new ActionListener( ) {
@override
public void actionPerformed( ActionEvent e ) {
jelly1.move();
repaint();
}
}).start();