Java 如何将重置选项添加到此游戏?
我希望玩家能够在死后按“r”键并重新开始。我想我应该把我的全部代码放到一个重置方法中,但我只是一个初学者,我还没有完全做到这一点Java 如何将重置选项添加到此游戏?,java,eclipse,Java,Eclipse,我希望玩家能够在死后按“r”键并重新开始。我想我应该把我的全部代码放到一个重置方法中,但我只是一个初学者,我还没有完全做到这一点 import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.util.ArrayList; import java.ut
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.ArrayList;
import java.util.Random;
import javax.swing.JPanel;
public class Screen extends JPanel implements Runnable {
private static final long serialVersionUID = 1L;
public static final int WIDTH = 800, HEIGHT = 800;
private Thread thread;
private boolean running = false;
private BodyPart b;
private ArrayList<BodyPart> snake;
private Apple apple;
private ArrayList<Apple> apples;
private Random r;
private int xCoor = 10, yCoor = 10;
private int size = 20;
private boolean right = true, left = false, up = false, down = false;
private int ticks = 0;
private Key key;
public Screen() {
setFocusable(true);
key = new Key();
addKeyListener(key);
setPreferredSize(new Dimension(WIDTH, HEIGHT));
r = new Random();
snake = new ArrayList<BodyPart>();
apples = new ArrayList<Apple>();
start();
}
public void tick() {
if(snake.size() == 0) {
b = new BodyPart(xCoor, yCoor, 10);
snake.add(b);
}
if(apples.size() == 0) {
int xCoor = r.nextInt(80);
int yCoor = r.nextInt(80);
apple = new Apple(xCoor, yCoor, 10);
apples.add(apple);
}
for(int i = 0; i < apples.size(); i++) {
if(xCoor == apples.get(i).getxCoor() && yCoor == apples.get(i).getyCoor()) {
size++;
apples.remove(i);
i--;
}
}
for(int i = 0; i < snake.size(); i++) {
if(xCoor == snake.get(i).getxCoor() && yCoor == snake.get(i).getyCoor()) {
if(i != snake.size() - 1) {
stop();
}
}
}
if(xCoor < -1) xCoor = 80;
if(xCoor > 80) xCoor = -1;
if(yCoor < -1) yCoor = 80;
if(yCoor > 80) yCoor = -1;
ticks++;
if(ticks > 250000) {
if(right) xCoor++;
if(left) xCoor--;
if(up) yCoor--;
if(down) yCoor++;
ticks = 185000;
b = new BodyPart(xCoor, yCoor, 10);
snake.add(b);
if(snake.size() > size) {
snake.remove(0);
}
}
}
public void paint(Graphics g) {
g.clearRect(0, 0, WIDTH, HEIGHT);
g.setColor(new Color(10, 50, 0));
g.fillRect(0, 0, WIDTH, HEIGHT);
g.setColor(Color.BLACK);
for(int i = 0; i < WIDTH / 10; i++) {
g.drawLine(i * 10, 0, i * 10, HEIGHT);
}
for(int i = 0; i < HEIGHT / 10; i++) {
g.drawLine(0, i * 10, WIDTH, i * 10);
}
for(int i = 0; i < snake.size(); i++) {
snake.get(i).draw(g);
}
for(int i = 0; i < apples.size(); i++) {
apples.get(i).draw(g);
}
}
public void start() {
running = true;
thread = new Thread(this, "Game Loop");
thread.start();
}
public void stop() {
running = false;
try {
thread.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
public void run() {
while(running) {
tick();
repaint();
}
}
private class Key implements KeyListener {
public void keyPressed(KeyEvent e) {
int key = e.getKeyCode();
if(key == KeyEvent.VK_RIGHT && !left) {
up = false;
down = false;
right = true;
}
if(key == KeyEvent.VK_LEFT && !right) {
up = false;
down = false;
left = true;
}
if(key == KeyEvent.VK_UP && !down) {
left = false;
right = false;
up = true;
}
if(key == KeyEvent.VK_DOWN && !up) {
left = false;
right = false;
down = true;
}
}
@Override
public void keyReleased(KeyEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void keyTyped(KeyEvent arg0) {
// TODO Auto-generated method stub
}
}
}
导入java.awt.Color;
导入java.awt.Dimension;
导入java.awt.Graphics;
导入java.awt.event.KeyEvent;
导入java.awt.event.KeyListener;
导入java.util.ArrayList;
导入java.util.Random;
导入javax.swing.JPanel;
公共类屏幕扩展JPanel实现可运行{
私有静态最终长serialVersionUID=1L;
公共静态最终内部宽度=800,高度=800;
私有线程;
私有布尔运行=false;
私人机构乙部;
私家蛇;
私人苹果;
私人ArrayList苹果;
私有随机r;
私有int xCoor=10,yCoor=10;
私有整数大小=20;
私有布尔右=真,左=假,上=假,下=假;
私有整数=0;
私钥;
公共屏幕(){
设置聚焦(真);
键=新键();
addKeyListener(键);
setPreferredSize(新尺寸(宽度、高度));
r=新随机数();
snake=newarraylist();
苹果=新的ArrayList();
start();
}
公共空白勾号(){
if(snake.size()==0){
b=新车身部件(xCoor,yCoor,10);
蛇.加入(b);
}
if(apples.size()==0){
int xCoor=r.nextInt(80);
int yCoor=r.nextInt(80);
苹果=新苹果(xCoor,yCoor,10);
苹果。添加(苹果);
}
对于(int i=0;i80)xCoor=-1;
如果(yCoor<-1)yCoor=80;
如果(yCoor>80)yCoor=-1;
ticks++;
如果(滴答声>250000){
if(右)xCoor++;
如果(左)xCoor--;
如果(向上)yCoor--;
如果(向下)yCoor++;
蜱=185000;
b=新车身部件(xCoor,yCoor,10);
蛇.加入(b);
if(snake.size()>size){
snake.remove(0);
}
}
}
公共空间涂料(图g){
g、 clearRect(0,0,宽度,高度);
g、 setColor(新颜色(10,50,0));
g、 fillRect(0,0,宽度,高度);
g、 设置颜色(颜色为黑色);
对于(int i=0;i
非常感谢您的帮助 首先,是的,你在正确的轨道上。最好的方法是将初始化代码(将所有变量设置为其初始值)放在一个单独的方法中。然后,当您按下“r”键时,您只需调用此方法,它就会自行“重置” 要做到这一点,您应该在开始时进行所有变量初始化。当前您初始化
b=newbodypart(xCoor,yCoor,10)代码>在勾选()
中。因为这只发生一次(当游戏开始时),所以最好使用初始化方法
初始化方法的粗略建议:
public void initialize() {
snake = new ArrayList<BodyPart>();
apples = new ArrayList<Apple>();
b = new BodyPart(xCoor, yCoor, 10);
snake.add(b);
}
public void initialize(){
snake=newarraylist();
苹果=新的ArrayList();
b=新车身部件(xCoor,yCoor,10);
蛇.加入(b);
}
此方法初始化所有“可重置”的变量。然后,当int key=e.getKeyCode()时,可以调用此方法代码>是KeyCode.R
您可以按如下方式修改代码:
我添加了注释来解释我的修改
//this resets the position/size of the snake and clears the array
public void reset() {
snake.clear();
apples.clear();
xCoor = 10;
yCoor = 10;
size = 20;
running = true;
}
private class Key implements KeyListener {
//reset when you are dead and the user presses r
if (!running && (e.getKeyChar() == 'r' || e.getKeyChar() == 'R')){
reset();
}
}
public void tick() {
while (running){
//prev code
for(int i = 0; i < snake.size(); i++) {
if(xCoor == snake.get(i).getxCoor() && yCoor == snake.get(i).getyCoor()) {
if(i != snake.size() - 1) {
//don't kill the process, just stop the game and wait for the user to press 'r'
//you may need to do additional stuff here
running = false;
}
}
}
//remaining code
}
}
//这将重置snake的位置/大小并清除数组
公共无效重置(){
snake.clear();
苹果;
xCoor=10;
yCoor=10;
尺寸=20;
运行=真;
}
私有类密钥实现KeyListener{
//当您