我创建了一个Hangman游戏，其中玩家输入一个单词而另一个玩家试图猜出该单词。屏幕上有26个JButton（字母表中的每个字母）。
每次选择正确的字母时，计数器变量都会递增。 计数器变量的数量决定了刽子手的绘制量（7是完全绘制刽子手的时候）。当选择了正确的字母时，我可以让计数器递增但是当它增加时我无法得到挂起的部分刽子手。
这是我的Hangman类，用于绘制Hangman并包含incrementCounter方法：
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class HangMan extends JPanel implements ActionListener {
private int xS = 8;
private int yS = 30;
public int counter;
private Color hatColor = Color.BLACK;
private int dx = 0;
private int dy = 0;
public HangMan(int initalX, int initalY) {
// starting location
xS = initalX;
yS = initalY;
counter = 0;
Dimension dim = new Dimension(250, 475);
this.setPreferredSize(dim);
setFocusable(true);
requestFocusInWindow();
this.setVisible(true);
}
public void drawHangMan(Graphics g) {
g.setColor(Color.BLACK);
if (counter == 0) {
repaint();
}
if (counter == 1) {
drawHat(xS + 15, yS - 1, 20, 25, g); // hat
drawBrim(xS + 10, yS + 25, 30, 6, g); // brim
repaint();
}
if (counter == 2) {
drawHat(xS + 15, yS - 1, 20, 25, g); // hat
drawBrim(xS + 10, yS + 25, 30, 6, g); // brim
drawHead(xS, yS + 30, 50, 50, g); // head
repaint();
}
if (counter == 3) {
drawHat(xS + 15, yS - 1, 20, 25, g); // hat
drawBrim(xS + 10, yS + 25, 30, 6, g); // brim
drawHead(xS, yS + 30, 50, 50, g); // head
drawBody(xS + 25, yS + 80, xS + 25, yS + 175, g); // body
repaint();
}
if (counter == 4) {
drawHat(xS + 15, yS - 1, 20, 25, g); // hat
drawBrim(xS + 10, yS + 25, 30, 6, g); // brim
drawHead(xS, yS + 30, 50, 50, g); // head
drawBody(xS + 25, yS + 80, xS + 25, yS + 175, g); // body
drawLeftLeg(xS - 20, yS + 225, xS + 25, yS + 175, g); //left leg
repaint();
}
if (counter == 5) {
drawHat(xS + 15, yS - 1, 20, 25, g); // hat
drawBrim(xS + 10, yS + 25, 30, 6, g); // brim
drawHead(xS, yS + 30, 50, 50, g); // head
drawBody(xS + 25, yS + 80, xS + 25, yS + 175, g); // body
drawLeftLeg(xS - 20, yS + 225, xS + 25, yS + 175, g); //left leg
drawRightLeg(xS + 25, yS + 175, xS + 65, yS + 225, g); //right leg
repaint();
}
if (counter == 6) {
drawHat(xS + 15, yS - 1, 20, 25, g); // hat
drawBrim(xS + 10, yS + 25, 30, 6, g); // brim
drawHead(xS, yS + 30, 50, 50, g); // head
drawBody(xS + 25, yS + 80, xS + 25, yS + 175, g); // body
drawLeftLeg(xS - 20, yS + 225, xS + 25, yS + 175, g); //left leg
drawRightLeg(xS + 25, yS + 175, xS + 65, yS + 225, g); //right leg
drawLeftArm(xS - 20, yS + 90, xS + 25, yS + 120, g); //left arm
repaint();
}
if (counter == 7) {
drawHat(xS + 15, yS - 1, 20, 25, g); // hat
drawBrim(xS + 10, yS + 25, 30, 6, g); // brim
drawHead(xS, yS + 30, 50, 50, g); // head
drawBody(xS + 25, yS + 80, xS + 25, yS + 175, g); // body
drawLeftLeg(xS - 20, yS + 225, xS + 25, yS + 175, g); //left leg
drawRightLeg(xS + 25, yS + 175, xS + 65, yS + 225, g); //right leg
drawLeftArm(xS - 20, yS + 90, xS + 25, yS + 120, g); //left arm
drawRightArm(xS + 25, yS + 120, xS + 70, yS + 90, g); //right arm
repaint();
}
}
public void drawLeftArm(int a, int b, int x, int y, Graphics g) {
g.drawLine(a, b, x, y); //left arm
repaint();
}
public void drawRightArm(int a, int b, int x, int y, Graphics g) {
g.drawLine(a, b, x, y); //left arm
repaint();
}
public void drawLeftLeg(int a, int b, int x, int y, Graphics g) {
g.drawLine(a, b, x, y); //left arm
repaint();
}
public void drawRightLeg(int a, int b, int x, int y, Graphics g) {
g.drawLine(a, b, x, y); //left arm
repaint();
}
public void drawBody(int a, int b, int x, int y, Graphics g) {
g.drawLine(a, b, x, y); //left arm
repaint();
}
public void drawHead(int a, int b, int x, int y, Graphics g) {
g.drawOval(a, b, x, y); //left arm
repaint();
}
public void drawHat(int a, int b, int x, int y, Graphics g) {
g.drawRect(a, b, x, y); //left arm
repaint();
}
public void drawBrim(int a, int b, int x, int y, Graphics g) {
g.drawRect(a, b, x, y); //left arm
repaint();
}
public void drawHanger(Graphics g) {
g.fillRect(xS - 125, yS + 300, 80, 20);
g.drawLine(xS - 85, yS + 300, xS - 85, yS + 80);
g.drawLine(xS - 85, yS + 80, xS + 22, yS + 80);
}
public void incrementCounter() {
counter++;
System.out.println("counter = " + counter);
repaint();
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
drawHangMan(g);
drawHanger(g);
repaint();
g.setFont(new Font("Sherif", Font.BOLD, 40));
}
public void actionPerformed(ActionEvent e) {
repaint();
}
}
现在这里是我的Button类，它绘制了26个JButtons并包含了每次单击按钮时都会调用update方法的ActionListener
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JPanel;
public class Button extends JPanel {
JButton[] grid = new JButton[26];
Dashes dash;
public Button(String str, Dashes dash) {
this.dash = dash;
final String alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
Dimension dim = new Dimension(360, 360);
this.setPreferredSize(dim);
ActionListener listener = new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String action = e.getActionCommand();
System.out.println(action);
dash.update(action);
dash.repaint();
/*
add(new JLabel(action + ""));
setVisible(true);
*/
}
};
for (int i = 0; i < grid.length; i++) {
grid[i] = (JButton) this.add(new JButton(alphabet.charAt(i) + ""));
grid[i].addActionListener(listener);
this.setVisible(true);
}
}
}
这是我的Dashes类，其中包含更新方法
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.Line2D;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class Dashes extends JPanel {
JLabel label;
String word;
String guess = "";
HangMan hang;
public Dashes(String word) {
this.word = word;
hang = new HangMan(150, 150);
for (int i = 0; i < word.length(); i++) {
guess += " ";
}
word = word.toUpperCase();
Dimension dim = new Dimension(1500, 300);
this.setPreferredSize(dim);
this.setVisible(true);
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D) g;
drawDashes(g2d);
}
private void drawDashes(Graphics2D g2d) {
for (int i = 0; i < word.length() * 50; i += 50) {
g2d.draw(new Line2D.Double(100.0 + i, 200.0, 125.0 + i, 200.0));
for (int j = 0; j < guess.length(); j++) {
g2d.drawString(guess.charAt(j) + "", 108 + j * 50, 198);
}
// g2d.drawString("m", 108 + i, 198);
}
}
public void update(String str) {
for (int i = 0; i < word.length(); i++) {
if (str.equals(word.charAt(i) + "")) {
guess = guess.substring(0, i) + str + guess.substring(i + 1);
hang.incrementCounter();
hang.repaint();
}
}
}
}
我很抱歉这么长时间犯这么小的问题。我想提一下，如果我最初将计数器设置为2，那么它将正确地绘制帽子，边缘和头部。一些背景：我被分配了一个Java图形项目而没有真正被教过图形！
答案 0 :(得分：0)
1 - 从绘画逻辑中删除repaint()（如评论中所述）
2 - 在Dashes.update()中使用String.equalsIgnoreCase()而不是String.equals()（可能您使用小写字词并与Button类中的大写字符进行比较）。
3 - 在Dashes.update()增量计数器中并仅在您错过时重新绘制HangMan：
public void update(String str) {
boolean found = false;
for (int i = 0; i < word.length(); i++) {
if (str.equalsIgnoreCase(word.charAt(i) + "")) {
guess = guess.substring(0, i) + str + guess.substring(i + 1);
found = true;
}
}
if(!found) {
hang.incrementCounter();
hang.repaint();
}
}