我一直在为学校制作一款井字棋游戏,该游戏通过控制台获取用户输入,然后在 GUI 中显示当前的棋盘状态。我拥有所有代码来确保游戏按预期运行,但是我不知道如何在玩家玩游戏时将 X 或 O 图像绘制到棋盘上。当调用构造函数时,它可以很好地绘制板,但是当我调用我的方法来绘制图像时,它根本没有改变。我对 GUI 不太了解,非常感谢任何帮助。
我的代码:
package part1;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Point;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class boardDraw extends JFrame{
private ImageIcon XIcon = new ImageIcon("XJava.png");
private ImageIcon OIcon = new ImageIcon("OJava.png");
private Image X = XIcon.getImage();
private Image O = OIcon.getImage();
private Point[][] coords = new Point[3][3];
public boardDraw(){
setTitle("Tic-Tac-Toe");
setSize(1000, 1000);
setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);
fillCoords();
}
public void paint(Graphics g){
g.drawLine(0, 333, 1000, 333);
g.drawLine(0, 666, 1000, 666);
g.drawLine(333, 0, 333, 1000);
g.drawLine(666, 0, 666, 1000);
}
public void fillCoords(){
int x = 170;
int y = 170;
for(int i = 0; i<3; i++){
for(int j = 0; j<3; j++){
coords[i][j] = new Point(x, y);
y += 333;
}
x += 333;
}
}
public void setX(int row, int col){
Graphics g = this.getGraphics();
//g.drawImage(X, (int)coords[row][col].getX(), (int)coords[row][col].getY(), null);
//System.out.println(X);
}
public void setO(int row, int col){
Graphics g = this.getGraphics();
g.drawImage(O, (int)coords[row][col].getX(), (int)coords[row][col].getY(), this);
//System.out.println(O);
//g.drawOval((int)coords[row][col].getX(), (int)coords[row][col].getY(), 100, 100);
}
}
最佳答案
..how to draw a picture onto an already existing JFrame(?)
我不建议为此使用自定义绘画。相反,将 9 个标签 (JLabel
) 放入网格布局中 (new GridLayout(3,3,n,n);//n 是单元格之间的填充
)并使用图像作为标签的图标。
想象一下这些是图像。
X
O
那么这可能就是最终结果:
这是将它们组合在一起的代码:
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import java.util.Random;
import javax.imageio.ImageIO;
import javax.swing.*;
import javax.swing.border.EmptyBorder;
public class TicTacToe {
private JComponent ui = null;
private BufferedImage xImage;
private BufferedImage oImage;
private BufferedImage blankImage;
TicTacToe() {
initUI();
}
public void initUI() {
if (ui != null) {
return;
}
ui = new JPanel(new BorderLayout(4, 4));
ui.setBorder(new EmptyBorder(4, 4, 4, 4));
try {
xImage = ImageIO.read(new URL("/image/F0JHK.png"));
oImage = ImageIO.read(new URL("/image/gJmeJ.png"));
blankImage = new BufferedImage(
xImage.getWidth(), xImage.getHeight(),
BufferedImage.TYPE_INT_ARGB);
} catch (IOException ex) {
System.err.println("Unable to load icons!");
ex.printStackTrace();
System.exit(1);
}
JPanel ticTacToeBoard = new JPanel(new GridLayout(3, 3, 4, 4));
ui.add(ticTacToeBoard, BorderLayout.CENTER);
Random r = new Random();
Image[] images = {
xImage,
oImage,
blankImage
};
for (int ii = 0; ii < 9; ii++) {
// next line is to show how it might look.
Image image = images[r.nextInt(3)];
JLabel l = new JLabel(new ImageIcon(image));
l.setOpaque(true);
l.setBackground(Color.WHITE);
ticTacToeBoard.add(l);
}
}
public JComponent getUI() {
return ui;
}
public static void main(String[] args) {
Runnable r = new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception useDefault) {
}
TicTacToe o = new TicTacToe();
JFrame f = new JFrame(o.getClass().getSimpleName());
f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
f.setLocationByPlatform(true);
f.setContentPane(o.getUI());
f.pack();
f.setMinimumSize(f.getSize());
f.setVisible(true);
}
};
SwingUtilities.invokeLater(r);
}
}
编辑
我忘记了最终目标是让用户能够使用键盘和鼠标与方 block 进行交互! :P
考虑到这一点,请注意我们只能向标签添加鼠标监听器。对于键盘交互,按钮 (JButton
) 会更好。将 ActionListener
添加到按钮后,它将对键盘或鼠标输入使用react。请参阅Making a robust, resizable Swing Chess GUI用于基于一系列按钮的棋盘游戏。例如
JButton[][] chessBoardSquares = new JButton[8][8];
关于java - 我不知道如何在现有的 JFrame 上绘制图片,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/42431630/