我正在制作一个4级RPG。它有Player类，允许我们移动玩家。它有Board类，用于游戏中的地图。战斗阶段有战斗阶段。 RPG是负责运行游戏的主要类。 我想要的是玩家何时进入坐标（500x500）我希望程序打开一个新窗口，它将有战斗的JPanel。
编辑：更新了display（）和actionPerformed（）方法
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Player {
private int dx,dy,x,y;
private Image image;
private ImageIcon front = new ImageIcon("player_front.png");
private ImageIcon left = new ImageIcon("player_left.png");
private ImageIcon right = new ImageIcon("player_right.png");
private ImageIcon back = new ImageIcon("player_back.png");
public Player() {
initplayer();
}
private void initplayer() {
image = front.getImage();
x = 0;
y = 0;
}
public void move() {
x += dx;
y += dy;
}
public int getX() {
return x;
}
public void setX(int x){
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
public Image getImage() {
return image;
}
public void keyPressed(KeyEvent e) {
int key = e.getKeyCode();
dx = 0;
dy = 0;
if (key == KeyEvent.VK_LEFT && x >= 0) {
image = left.getImage();
dx = -1;
}
if (key == KeyEvent.VK_RIGHT && x <= 850) {
image = right.getImage();
dx = 1;
}
if (key == KeyEvent.VK_UP && y >= 0) {
image = back.getImage();
dy = -1;
}
if (key == KeyEvent.VK_DOWN && y <= 850) {
image = front.getImage();
dy = 1;
}
}
public void keyReleased(KeyEvent e) {
int key = e.getKeyCode();
if (key == KeyEvent.VK_LEFT) {
dx = 0;
}
if (key == KeyEvent.VK_RIGHT) {
dx = 0;
}
if (key == KeyEvent.VK_UP) {
dy = 0;
}
if (key == KeyEvent.VK_DOWN) {
dy = 0;
}
}
}
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Board extends JPanel implements ActionListener {
private Battle battle;
private Timer timer;
private Player player;
private final int DELAY = 10;
private Image image;
private JLabel label;
public Board() {
initBoard();
}
private void initBoard() {
image = Toolkit.getDefaultToolkit().createImage("map.png");
addKeyListener(new TAdapter());
setFocusable(true);
player = new Player();
timer = new Timer(DELAY, this);
timer.start();
}
public Image getImage(){
return image;
}
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(image,0,0,null);
doDrawing(g);
}
private void doDrawing(Graphics g) {
Graphics2D g2d = (Graphics2D) g;
g2d.drawImage(player.getImage(), player.getX(), player.getY(), this);
}
public boolean checkBattle(){
if(player.getX() == 500 && player.getY() == 500){
return true;
}
return false;
}
public void actionPerformed(ActionEvent e) {//UPDATED
player.move();
if(checkBattle()){
battle.display();
}
repaint();
}
private class TAdapter extends KeyAdapter {
@Override
public void keyReleased(KeyEvent e) {
player.keyReleased(e);
}
@Override
public void keyPressed(KeyEvent e) {
player.keyPressed(e);
}
}
}
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
public class Battle extends JPanel{
private JFrame frame;
private JPanel panel1, panel2;
private JLabel label1, label2, label3, label4;
private JButton button1, button2, button3, button4;
private int playerHealth = 100;
private int opponentHealth = 50;
private int maxOpponentHealth = 50;
private int level = 0;
private int playerDamage, opponentDamage, chance, levelDamage;
private ImageIcon image;
public Battle(){
setPreferredSize(new Dimension(500,500));
setLayout(new BorderLayout());
panel1 = new JPanel();
panel1.setLayout(new FlowLayout());
label1 = new JLabel("You : " + Integer.toString(playerHealth) + " / 100");
label2 = new JLabel("Opponent : " + Integer.toString(opponentHealth) + " / 50");
button1 = new JButton("Power Attack!(%50 hit chance)");
button2 = new JButton("Normal Attack!(%70 hit chance)");
button3 = new JButton("Quick Attack!(%90 hit chance)");
button4 = new JButton("NEXT LEVEL!");
panel2 = new JPanel();
ImageIcon image = new ImageIcon("player_vs_rival.png");
label4 = new JLabel(image);
ButtonListener listener = new ButtonListener();
button1.addActionListener(listener);
button2.addActionListener(listener);
button3.addActionListener(listener);
button4.addActionListener(listener);
panel1.add(button1);
panel1.add(button2);
panel1.add(button3);
panel1.add(button4);
panel2.add(label4);
label3 = new JLabel("");
add(label1, BorderLayout.WEST);
add(label2, BorderLayout.EAST);
add(label3, BorderLayout.SOUTH);
add(panel1, BorderLayout.CENTER);
add(panel2, BorderLayout.NORTH);
}
public void powerAttack(){
Random random = new Random();
playerDamage = random.nextInt(5) + 10;
}
public void normalAttack(){
Random random = new Random();
playerDamage = random.nextInt(10) + 5;
}
public void quickAttack(){
Random random = new Random();
playerDamage = random.nextInt(5) + 5;
}
public void opponentAttack(){
Random random = new Random();
opponentDamage = random.nextInt(5) + 5;
}
public boolean checkPowerAttack(){
Random random = new Random();
chance = random.nextInt(100);
if(chance >= 50){
return true;
}
return false;
}
public boolean checkNormalAttack(){
Random random = new Random();
chance = random.nextInt(100);
if(chance >= 30){
return true;
}
return false;
}
public boolean checkQuickAttack(){
Random random = new Random();
chance = random.nextInt(100);
if(chance >= 10){
return true;
}
return false;
}
public boolean checkOpponentAttack(){
Random random = new Random();
chance = random.nextInt(100);
if(chance >= 25){
return true;
}
return false;
}
public void levelDamage(){
Random random = new Random();
levelDamage = random.nextInt(5);
levelDamage = levelDamage * level;
}
public void display(){//UPDATED
JFrame newFrame = new JFrame("New Window");
Battle battle = new Battle();
newFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
newFrame.setVisible(true);
newFrame.pack();
newFrame.getContentPane().add(battle);
}
}
private class ButtonListener implements ActionListener{
public void actionPerformed(ActionEvent e){
Object source = e.getSource();
if(source == button1){
if(checkPowerAttack() == true){
powerAttack();
}
else
playerDamage = 0;
opponentHealth = opponentHealth - playerDamage;
}
if(source == button2){
if(checkNormalAttack() == true){
normalAttack();
}
else
playerDamage = 0;
opponentHealth = opponentHealth - playerDamage;
}
if(source == button3){
if(checkQuickAttack() == true){
quickAttack();
}
else
playerDamage = 0;
opponentHealth = opponentHealth - playerDamage;
}
if((source == button1 || source == button2) || source == button3){
if(checkOpponentAttack() == true){
opponentAttack();
}
else
opponentDamage = 0;
playerHealth = playerHealth - opponentDamage - levelDamage;
}
if(source == button4){
level++;
opponentHealth = opponentHealth + 25;
maxOpponentHealth = opponentHealth;
}
if(playerHealth <= 0 && opponentHealth > 0){
JOptionPane.showMessageDialog(null,"YOU LOSE");
}
if(opponentHealth <= 0 && playerHealth > 0){
JOptionPane.showMessageDialog(null,"YOU WIN");
}
label1.setText("You : " + Integer.toString(playerHealth) + " / 100");
label2.setText("Opponent : " + Integer.toString(opponentHealth) + " / " + Integer.toString(maxOpponentHealth));
if(playerDamage != 0 && opponentDamage != 0){
label3.setText("You made " + Integer.toString(playerDamage) + " damage to your opponent. " + http://stackoverflow.com/editing-help
"Your opponent give " + Integer.toString(opponentDamage + levelDamage) + " damage to you.");
}
else if(playerDamage == 0 && opponentDamage != 0){
label3.setText("YOU MISSED YOUR ATTACK! " +
"Your opponent give " + Integer.toString(opponentDamage + levelDamage) + " damage to you.");
}
else if(playerDamage != 0 && opponentDamage == 0){
label3.setText("You made " + Integer.toString(playerDamage) + " damage to your opponent. " +
"YOUR OPPONENT MISSED HIS ATTACK!");
}
else if(playerDamage == 0 && opponentDamage == 0){
label3.setText("YOU MISSED YOUR ATTACK! " +
"YOUR OPPONENT ALSO MISSED HIS ATTACK!");
}
}
}
}
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class RPG extends JFrame {
private Board board = new Board();
private Battle battle = new Battle();
public RPG() {
initUI();
}
private void initUI() {
add(board);
setSize(900, 900);
setResizable(false);
setTitle("RPG");
setLocationRelativeTo(null);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
RPG ex = new RPG();
ex.setVisible(false);
}
});
}
}
答案 0 :(得分：1)
打开一个新窗口就像创建一个像你在display（）函数中已经完成的新框架一样简单。例如，这个：
JFrame newFrame = new JFrame("New Window");
newFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
newFrame.setVisible(true);
应该足以打开一个没有任何内容的新窗口（你可能想要在display（）方法中添加一些东西）。由于你想在玩家到达某个位置时这样做，只需检查移动时的玩家坐标并调用类似的代码来打开一个新的框架。
编辑： 再看一遍，看起来你可以在checkBattle（）函数中调用display（）？看起来你已经拥有了大部分逻辑。如果你想知道从哪里调用checkBattle（），我将它放在Player.move（）函数中。