java - 鼠标点击java

标签 java swing paint keylistener mouselistener

<分区>

我遵循了有关在 Java 中创建迷宫游戏的教程。完成后,我决定添加一些内容(主菜单、更多级别等)。我目前停留在主菜单,因为我无法使用鼠标输入。当我左键单击开始游戏框时,我试图切换到屏幕 = 1。这是我当前的类(class)代码。

package Maze;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.Timer;

public class Board extends JPanel implements ActionListener{
    private Timer timer;    
    private Map m;
    private Player p;
    private int screen = 0;
    private String Message = "";
    private Font font = new Font("Serif", Font.BOLD, 48);
    private Font start = new Font("Serif", Font.BOLD, 36);
    private Rectangle start2 = new Rectangle(135,350,180,55);


    public Board(){
        m = new Map();
        p = new Player();
        addKeyListener(new Al());
        addMouseListener(new A2());
        setFocusable(true);     
        timer = new Timer(25,this);
        timer.start();
    }
    public void actionPerformed(ActionEvent e){ 
        if(m.getMap(p.getTileX(),p.getTileY()).equals("f")){
            Message = "Winner";
            screen = 10;
        }
        repaint();
    }
    public void paint(Graphics g){
        super.paint(g);
        if(screen==0){
            g.setColor(Color.BLACK);
            g.fillRect(0, 0, 464, 485);
            g.setColor(Color.RED);
            g.setFont(font);
            g.drawString("Maze Game", 100,50);
            g.setFont(start);
            g.setColor(Color.WHITE);
            g.drawString("Created by: ", 135,90);
            g.drawString("Chad Jordan", 125,130);
            g.setColor(Color.PINK);
            g.fillRect(start2.x, start2.y, start2.width, start2.height);
            g.setColor(Color.WHITE);
            g.drawString("Start Game", start2.x, start2.y+40);

        }

        if((screen==1)){
            for(int y = 0; y<14;y++){
                for(int x=0; x<14; x++){
                    if(m.getMap(x, y).equals("g")){
                        g.drawImage(m.getGrass(),  x*32, y*32, null);
                    }
                    if(m.getMap(x, y).equals("w")){
                        g.drawImage(m.getWall(),  x*32, y*32, null);
                    }
                    if(m.getMap(x,y).equals("f")){
                        g.drawImage(m.getFinish(), x*32, y*32, null);
                    }
                }
            }
            g.drawImage(p.getPlayer(), p.getTileX()*32, p.getTileY()*32, null);
        }
        if(screen==10){
            g.setColor(Color.BLACK);
            g.setFont(font);
            g.drawString(Message, 150,200);
        }

    }

    public class A2 extends MouseAdapter{
        public void MousePressed(MouseEvent e){
            int mx = e.getX();
            int my = e.getY();
            System.out.println("2");
            if((screen ==0) && start2.contains(mx,my)){
                screen=1;
                System.out.println("1");
            }
        }
        public void mouseClicked(MouseEvent e) {

        }
        public void mouseEntered(MouseEvent e) {

        }
        public void mouseExited(MouseEvent e) {

        }
        public void mousePressed(MouseEvent e) {

        }
        public void mouseReleased(MouseEvent e) {

        }
    }

    public class Al extends KeyAdapter{
        public void keyPressed(KeyEvent e){
            int keycode = e.getKeyCode();
            if(( keycode == KeyEvent.VK_W) || (keycode == KeyEvent.VK_UP)){
                if(!m.getMap(p.getTileX(),p.getTileY() -1).equals("w")){
                    p.move(0, -1);
                }
            }
            if(( keycode == KeyEvent.VK_A) || (keycode == KeyEvent.VK_LEFT)){
                if(!m.getMap(p.getTileX()-1,p.getTileY()).equals("w")){
                p.move(-1, 0);
                }
            }
            if(( keycode == KeyEvent.VK_D) || (keycode == KeyEvent.VK_RIGHT)){
                if(!m.getMap(p.getTileX()+1,p.getTileY()).equals("w")){
                    p.move(1, 0);
                }
            }
            if(( keycode == KeyEvent.VK_S) || (keycode == KeyEvent.VK_DOWN)){
                if(!m.getMap(p.getTileX(),p.getTileY() +1).equals("w")){
                    p.move(0, 1);
                }
            }
        }
        public void keyReleased(KeyEvent e){

        }
        public void keyTyped(KeyEvent e){

        }   
    }
}

我使用了“System.out.println("1");"查看它是否注册了鼠标按下但不打印。

最佳答案

我看你的问题是大写

你已经用大写的 M 实现了 MousePressed

       public void MousePressed(MouseEvent e){
            int mx = e.getX();
            int my = e.getY();
            System.out.println("2");
            if((screen ==0) && start2.contains(mx,my)){
                screen=1;
                System.out.println("1");
            }
        }

还有一个小写的 m:

    public void mousePressed(MouseEvent e) {

    }

只需将大写 M 更改为小写 m 并删除多余的 mousePressed 调用

例如

 public class A2 extends MouseAdapter{
    public void mousePressed(MouseEvent e){
        int mx = e.getX();
        int my = e.getY();
        System.out.println("2");
        if((screen ==0) && start2.contains(mx,my)){
            screen=1;
            System.out.println("1");
        }
    }
    public void mouseClicked(MouseEvent e) {

    }
    public void mouseEntered(MouseEvent e) {

    }
    public void mouseExited(MouseEvent e) {

    }
    public void mouseReleased(MouseEvent e) {

    }
}

关于java - 鼠标点击java,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/19780300/

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