所以我正在制作街机射击游戏，目前我正在拍摄一个射击课。这个类创建一个新的子弹并使用椭圆类触发它。我有另一个名为playervsplayer的课程，当按下空格键时，它会调用射击课程。无论是否再次按下空格键，此子弹都会继续移动。请帮助我使我当前的代码工作，因为我将使用该项目的关键监听器而不是键绑定。如果您不想使用密钥绑定，请不要回复。我知道上下方向都有2，当它只有1和1时，我会稍后解决，所以现在就忽略那个愚蠢的事情。我曾尝试在两个类中请求焦点，但没有帮助，因为如果我再次按空格键仍然会停止。如果我不再按空格键，它可以正常工作。以下是拍摄课程的代码：
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.Color;
public class Shooting implements ActionListener{
private Sprite ship1;
private Sprite ship2;
private int win_size;
private int bullet_size=20;//max of bullet size of 20 and min of 1
private JFrame window;
private Oval bullet;
private final int stop1=0;
private final int stop2=1;
private final int up1=2;
private final int up2=3;
private final int down1=4;
private final int down2=5;
private int dir1=stop1;
private int dir2=stop2;
private int bullet_speed=5;
private Timer timer;
private Color bullet_color=Color.green;
public Shooting(JFrame w,Sprite s1,Sprite s2,int w_size) {
window=w;
ship1=s1;
ship2=s2;
win_size=w_size;
}
public void shotmain(int firing_from) {
timer = new Timer( 10, this );
timer.start();
if (firing_from==1) {//So assuming fired from ship1 or player 1 on the bottom of the screen and not the top of the screen
int shipx_loc=ship1.getX();
int shipy_loc=ship1.getY();
int ship_width=ship1.getWidth();
int ship_height=ship1.getHeight();
bullet=new Oval(shipx_loc+(int)(ship_width/2)-(bullet_size/2)+1,shipy_loc,bullet_size,bullet_size);//Yes, I need the plus 1 or else its not quite center, I am picky I know.
bullet.setBackground(bullet_color);
window.add(bullet,0);
window.repaint();
dir1=up1;
}
}
private void move_bullet() {
boolean bob=true;
if (dir1==up1) {
if (bullet.getY()<=50) {//for now
window.remove(bullet);
window.repaint();
}
else {
bullet.setLocation(bullet.getX(),bullet.getY()-bullet_speed);
}
}
else if (dir2==down2) {
if (bullet.getY()>=win_size-50) {//for now
window.remove(bullet);
window.repaint();
}
else {
bullet.setLocation(bullet.getX(),bullet.getY()+bullet_speed);
}
}
}
public void actionPerformed(ActionEvent e) {
if ( e.getSource() == timer ){
move_bullet();
}
}
}
以下是playervsplayer类的代码：
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
public class PlayervsPlayer implements KeyListener,ActionListener{
private JFrame window;
private Timer timer;
private Shooting shot;
private int win_size;
private int ship_clearence=45;
private int speed=3;
private final int stop1=0;
private final int stop2=1;
private final int left1=2;
private final int left2=3;
private final int right1=4;
private final int right2=5;
private int dir1=stop1;
private int dir2=stop2;
private Sprite ship1=new Sprite("Spaceship.png");
private Sprite ship2=new Sprite("Spaceship2.png");
public PlayervsPlayer(JFrame w,int win_s) {
window=w;
win_size=win_s;
window.addKeyListener(this);
}
public void pvpmain() {
ship1.setSize(125,125);
ship1.setLocation((int)((win_size/2)-(ship1.getWidth()/2)),win_size-ship1.getHeight()-ship_clearence);
ship2.setSize(125,125);
ship2.setLocation((int)((win_size/2)-(ship1.getWidth()/2)),0);
window.add(ship1,0);
window.add(ship2,0);
window.repaint();
shot=new Shooting(window,ship1,ship2,win_size);
timer = new Timer( 10, this );
timer.start();
}
public void keyPressed(KeyEvent e) {
int key=e.getKeyCode();
if ( key == KeyEvent.VK_RIGHT ){
dir1 = right1;
}
else if (key==KeyEvent.VK_LEFT) {
dir1=left1;
}
else if (key==KeyEvent.VK_SPACE) {
shot.shotmain(1);
}
if (key==KeyEvent.VK_Q) {
dir2=left2;
}
else if (key==KeyEvent.VK_W) {
dir2=right2;
}
else if (key==KeyEvent.VK_E) {
//Nothing for now as for shooting
}
}
private void move() {
if (dir1==left1) {
if (ship1.getX()<=speed) {
dir1=stop1;
}
else {
ship1.setLocation(ship1.getX()-speed,ship1.getY());
}
}
else if (dir1==right1) {
if (ship1.getX()+ship1.getWidth()>=win_size-speed) {
dir1=stop1;
}
else {
ship1.setLocation(ship1.getX()+speed,ship1.getY());
}
}
if (dir2==left2) {
if (ship2.getX()<=speed) {
dir2=stop2;
}
else {
ship2.setLocation(ship2.getX()-speed,ship2.getY());
}
}
else if (dir2==right2) {
if (ship2.getX()+ship2.getWidth()>=win_size-speed) {
dir2=stop2;
}
else {
ship2.setLocation(ship2.getX()+speed,ship2.getY());
}
}
}
public void actionPerformed(ActionEvent e) {
if ( e.getSource() == timer ){
move();
}
}
public void keyTyped(KeyEvent e) {
//Nothing
}
public void keyReleased(KeyEvent e) {
//Nothing
}
}
我有很多其他类，但这些是最相关的两个类，因为我需要添加的类将在两个类之一中。没有生成错误。提前谢谢。