我正在尝试登上游戏模拟器。我的方块是JButton，它们看起来还不错，直到我使用fillOval函数添加一个椭圆形以指示玩家在棋盘上的位置为止。
我的面板是由方形按钮构建的，这里是Square类：
public class Square extends JButton{
private boolean occupied;
private Player occupant;
private int position, num;
private Board board;
public Square (int position) {
this.setPreferredSize(new Dimension(85, 85));
this.setText(Integer.toString(position + 1));
this.setFont(new Font("Tempus Sans ITC", Font.BOLD, 20));
this.position = position;
occupied = false;
occupant = null;
}
public int getPosition() {
return position;
}
public boolean isOccupied() {
return this.occupied;
}
public Player getOccupant() {
if(this.isOccupied())
return this.occupant;
return null;
}
public void enter ( Player p) {
this . enter (p);
}
public void leave ( Player p) {
this . leave (p);
}
public void setOccupant(Player visitor) {
this.occupant = visitor;
this.occupied = true;
}
public void paint(Graphics g) {
if(this.isOccupied()) {
g.setColor(occupant.getColor());
g.fillOval(30,30,50,50);
}
}
和GUI类
* Create the application.
*/
public Game() {
initialize();
startGame();
players.add(human);
players.add(computer);
//restart();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
//Main window
frame = new JFrame();
frame.setIconImage(Toolkit.getDefaultToolkit().getImage("C:\\Users\\X270\\eclipse-workspace\\Snakes and Ladders\\src\\org\\snakesandladders\\logo.png"));
frame.setBounds(100, 100, 600, 700);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(new BorderLayout());
frame.setResizable(false);
//call panels
createGamePanel();
createControlPanel();
}
/**
* Creating Board Panel
*/
private void createGamePanel() {
gamePanel = new JPanel();
board = new Board();
addBoardToPanel(board, gamePanel);
frame.getContentPane().add(gamePanel, BorderLayout.CENTER);
}
public void addBoardToPanel(Board b, JPanel p) {
int rows = 5;
int cols = 6;
JPanel ContainerPanel = new JPanel(new GridLayout(5, 6));
for (int r=rows; r>0; r--){
if(r % 2 == 0) {
int rowLeft = r * cols;
for (int n = rowLeft, l = (rowLeft - cols); n>l; n--){
Square sq = b.getSquare(n-1);
ContainerPanel.setBorder(BorderFactory.createLineBorder(Color.BLACK, BORDER_WIDTH));
ContainerPanel.add(sq);
}
}
else{
int rowLeft = ((r - 1) * cols) +1;
for (int n = rowLeft, l = (rowLeft + cols); n<l; n++){
Square sq =b.getSquare(n-1);
ContainerPanel.setBorder(BorderFactory.createLineBorder(Color.BLACK, BORDER_WIDTH));
ContainerPanel.add(sq);
}
}
p.add(ContainerPanel, BorderLayout.CENTER);
}
}
/**
* Creating the control panel
*/
private void createControlPanel() {
controlPanel = new JPanel();
infoPanel = new JPanel();
playerPanel = new JPanel();
buttonPanel = new JPanel();
controlPanel.setLayout(new BorderLayout(20, 20));
controlPanel.setBorder(new EmptyBorder(20, 20, 20, 20));
humanLabel = new JLabel(/*humanPlayer.getName()*/ " (You)");
humanLabel.setPreferredSize(new Dimension(175, 40));
humanLabel.setFont(new Font("Tahoma", Font.BOLD, 16));
humanLabel.setHorizontalAlignment(SwingConstants.CENTER);
humanLabel.setBorder(new LineBorder(Color.DARK_GRAY, 2));
humanLabel.setBackground(Color.RED);
humanLabel.setOpaque(true);
humanLabel.setForeground(Color.WHITE);
playerPanel.add(humanLabel, BorderLayout.WEST);
diceButton = new JButton("Roll Dice");
diceButton.setPreferredSize(new Dimension(150, 40));
diceButton.setFont(humanLabel.getFont());
/*diceButton.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
playTurn(humanPlayer);
}
});*/
playerPanel.add(diceButton, BorderLayout.CENTER);
computerLabel = new JLabel(/*humanPlayer.getName() + */" (Computer)");
computerLabel.setPreferredSize(humanLabel.getPreferredSize()); //new Dimension(labelWidth, labelHeight)
computerLabel.setFont(humanLabel.getFont());
computerLabel.setHorizontalAlignment(SwingConstants.CENTER);
computerLabel.setBorder(humanLabel.getBorder());
computerLabel.setBackground(Color.BLUE);
computerLabel.setOpaque(true);
computerLabel.setForeground(humanLabel.getForeground());
playerPanel.add(computerLabel, BorderLayout.EAST);
diceLabel = new JLabel("Dice Value: ?");
diceLabel.setPreferredSize(new Dimension(515, 40));
diceLabel.setFont(humanLabel.getFont());
diceLabel.setHorizontalAlignment(SwingConstants.CENTER);
diceLabel.setBorder(humanLabel.getBorder());
diceLabel.setBackground(Color.CYAN);
diceLabel.setOpaque(true);
infoPanel.add(diceLabel, BorderLayout.NORTH);
startButton = new JButton("Start New Game");
startButton.setFont(humanLabel.getFont());
startButton.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent r){
restart();
}
});
buttonPanel.add(startButton);
exitButton = new JButton("Exit");
exitButton.setFont(humanLabel.getFont());
exitButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e){
exit();
}
});
buttonPanel.add(exitButton);
controlPanel.add(infoPanel, BorderLayout.NORTH);
controlPanel.add(buttonPanel, BorderLayout.SOUTH);
controlPanel.add(playerPanel, BorderLayout.CENTER);
frame.getContentPane().add(controlPanel, BorderLayout.SOUTH);
}
这是添加fillOval之前的样子
这是添加fillOval后GUI的外观
我该如何解决？
先感谢您
最佳答案
您必须致电super.paint()：
public void paint(Graphics g) {
super.paint(g);
if(this.isOccupied()) {
g.setColor(occupant.getColor());
g.fillOval(30,30,50,50);
}
}
关于java - 在Square类中创建Paint Graphics g破坏了我的GUI，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/58724191/