Java 如何在不暂停程序的情况下获取字符
我正在为我的计算机课制作一个类似吃豆人的程序,这是我到目前为止所做的…我想在程序中添加幽灵。但我不知道如何使程序不会停止所有操作并等待用户输入。就像我使用c.getchar()时一样,它停止程序并等待用户输入。还有什么我可以用的,不会停止程序,所以它可能是一个幽灵追逐吃豆人。。。请帮忙Java 如何在不暂停程序的情况下获取字符,java,methods,char,Java,Methods,Char,我正在为我的计算机课制作一个类似吃豆人的程序,这是我到目前为止所做的…我想在程序中添加幽灵。但我不知道如何使程序不会停止所有操作并等待用户输入。就像我使用c.getchar()时一样,它停止程序并等待用户输入。还有什么我可以用的,不会停止程序,所以它可能是一个幽灵追逐吃豆人。。。请帮忙 // The "Pac_man" class. import java.awt.*; import hsa.Console; public class Pac_man { static Console
// The "Pac_man" class.
import java.awt.*;
import hsa.Console;
public class Pac_man
{
static Console c; // The output console
public static void main (String[] args)
{
c = new Console ();
int outline_x = 189, outline_y = 99, body_x = 190, body_y = 100, eye_x = 208, eye_y = 106, outline_position_x = 26;
int body_position_x = 30, p = 1, point_x = 0, point_y = 0, run_time = 0, score = 0, random_number, life = 3;
char key_entered;
background();
redraw (score, outline_x, outline_y, outline_position_x, body_x, body_y, body_position_x, life);
c.fillOval (eye_x, eye_y, 4, 4); // eye
do
{
key_entered = c.getChar();
if (key_entered == 'd' || key_entered == 'D')
{
outline_x = outline_x + 10;
body_x = body_x + 10;
eye_x = eye_x + 10;
outline_position_x = 26;
body_position_x = 30;
redraw (score, outline_x, outline_y, outline_position_x, body_x, body_y, body_position_x, life);
c.fillOval (eye_x, eye_y-1, 4, 4); // eye
}
if (key_entered == 'a' || key_entered == 'A')
{
outline_x = outline_x - 10;
body_x = body_x - 10;
eye_x = eye_x - 10;
outline_position_x = 206;
body_position_x = 210;
redraw (score, outline_x, outline_y, outline_position_x, body_x, body_y, body_position_x, life);
c.fillOval (eye_x-6, eye_y, 4, 4); // eye
}
if (key_entered == 'w' || key_entered == 'W')
{
outline_y = outline_y - 10;
body_y = body_y - 10;
eye_y = eye_y - 10;
outline_position_x = 116;
body_position_x = 120;
redraw (score, outline_x, outline_y, outline_position_x, body_x, body_y, body_position_x, life);
c.fillOval (eye_x+2, eye_y+2, 4, 4); // eye
}
if (key_entered == 's' || key_entered == 'S')
{
outline_y = outline_y + 10;
body_y = body_y + 10;
eye_y = eye_y + 10;
outline_position_x = 296;
body_position_x = 300;
redraw (score, outline_x, outline_y, outline_position_x, body_x, body_y, body_position_x, life);
c.fillOval (eye_x+3, eye_y+8, 4, 4); // eye
}
if (key_entered == 'p' || key_entered == 'P')
{
c.setColor (Color.blue);
Font f2 = new Font ("Freestyle Script", Font.BOLD, 56);
c.setFont (f2);
c.drawString ("GAME PAUSED", 173, 250);
for (int i = 1; p == i ; i++)
{
key_entered = c.getChar();
p++;
if (key_entered == 'p' || key_entered == 'P')
{
p = 0;
background();
redraw (score, outline_x, outline_y, outline_position_x, body_x, body_y, body_position_x, life);
c.fillOval (eye_x, eye_y, 4, 4); // eye
}
c.setColor (Color.black);
}
p = 1;
}
random_number = (int) (Math.random()* 100)+1;
//point start
if (run_time == score)
{
do
{
point_x = (int)(Math.random() * 1000) + 1;
}
while (point_x < 65 || point_x > 546);
do
{
point_y = (int)(Math.random() * 1000) + 1;
}
while (point_y < 90 || point_y > 430);
run_time ++;
}
c.setColor (Color.green);
c.fillOval (point_x, point_y, 8, 8);
// point end
if (outline_x > (point_x-32) && outline_x < (point_x+4) && outline_y > (point_y-29) && outline_y < (point_y+7))
{
score = score + 1;
}
if (outline_x < 59)
{
outline_x = 548;
body_x = 548;
eye_x = 569;
}
if (outline_x > 549)
{
outline_x = 60;
body_x = 60;
eye_x = 78;
}
if (outline_y < 89)
{
outline_y = 419;
body_y = 419;
eye_y = 425;
}
if (outline_y > 420)
{
outline_y = 90;
body_y = 90;
eye_y = 98;
}
}
while (1 == 1);
} // main method
public static void background ()
{
c.setColor (new Color (0, 0, 0));
c.fillRect (0, 0, 640, 500);
c.setColor (new Color (35, 47, 210));
Font f3 = new Font ("Footlight MT Light", Font.BOLD, 16);
c.setFont (f3);
c.drawString ("a = move left", 10, 485);
c.drawString ("d = move right", 125, 485);
c.drawString ("s = move down", 255, 485);
c.drawString ("w = move up", 385, 485);
c.drawString ("p = pause game", 500, 485);
}
public static void redraw (int score, int outline_x, int outline_y, int outline_position_x, int body_x, int body_y, int body_position_x, int life)
{
c.setColor (new Color (0, 0, 0));
c.fillRect (50, 50, 10, 400); // left border
c.fillRect (580, 50, 12, 400); // right border
c.fillRect (50, 450, 540, 15); // bottom border
c.fillRect (50, 40, 540, 10); // top border
c.setColor (new Color (35, 47, 210));
Font f2 = new Font ("Footlight MT Light", Font.BOLD, 45);
c.setFont (f2);
c.drawString ("Welcome to Pac-Man", 100, 37);
c.setColor (new Color (125, 23, 137));
c.fillRect (60, 50, 520, 400);
Font f3 = new Font ("Footlight MT Light", Font.BOLD, 24);
c.setFont (f3);
c.setColor (new Color (0, 0, 0));
c.drawString("SCORE : " + score, 61, 75);
c.drawString ("Lives :", 380, 75);
lives (life);
c.fillRect (50, 85, 550, 5);// line
c.setColor (Color.black);// pac man drawing begins
c.fillArc (outline_x, outline_y, 35, 35, outline_position_x, 320); // outline
c.setColor (Color.yellow);
c.fillArc (body_x, body_y, 32, 32, body_position_x, 310); // body
c.setColor (Color.black);// pac man drawing ends
}
public static int lives (int life)
{
int x1 = 470;
for (int i = 1; i <= life; i++)
{
c.setColor (Color.black);// pac man drawing begins
c.fillArc (x1, 55, 30, 30, 26, 320); // outline
c.setColor (Color.yellow);
c.fillArc (x1, 55, 28, 28, 30, 310); // body
c.setColor (Color.black);// pac man drawing begins
c.fillOval (x1+15, 59, 4, 4); // eye
x1+=35;
}
return life;
}
} // Pac_man class
//吃豆人”类。
导入java.awt.*;
导入hsa.Console;
公共级吃豆人
{
静态控制台c;//输出控制台
公共静态void main(字符串[]args)
{
c=新控制台();
int outline_x=189,outline_y=99,body_x=190,body_y=100,eye_x=208,eye_y=106,outline_x=26;
int body_position_x=30,p=1,point_x=0,point_y=0,run_time=0,score=0,random_number,life=3;
输入字符键;
背景();
重画(分数、轮廓、轮廓、轮廓、位置、身体、身体、位置、生命);
c、 圆角(眼x,眼y,4,4);//眼
做
{
key_entered=c.getChar();
如果(输入的键='d'| |输入的键='d')
{
轮廓x=轮廓x+10;
body_x=body_x+10;
眼x=眼x+10;
轮廓_位置_x=26;
身体位置=30;
重画(分数、轮廓、轮廓、轮廓、位置、身体、身体、位置、生命);
c、 圆角(眼x,眼y-1,4,4);//眼
}
如果(输入的键=='a'| |输入的键=='a')
{
大纲×=大纲×10;
body_x=body_x-10;
眼x=眼x-10;
轮廓_位置_x=206;
车身位置x=210;
重画(分数、轮廓、轮廓、轮廓、位置、身体、身体、位置、生命);
c、 圆形(眼睛x-6,眼睛y,4,4);//眼睛
}
如果(输入的键=='w'| |输入的键=='w')
{
轮廓y=轮廓y-10;
主体y=主体y-10;
眼y=眼y-10;
轮廓_位置_x=116;
车身位置x=120;
重画(分数、轮廓、轮廓、轮廓、位置、身体、身体、位置、生命);
c、 圆形(眼睛x+2,眼睛y+2,4,4);//眼睛
}
如果(输入的键=='s'| |输入的键=='s')
{
轮廓y=轮廓y+10;
主体y=主体y+10;
眼y=眼y+10;
轮廓_位置_x=296;
车身位置x=300;
重画(分数、轮廓、轮廓、轮廓、位置、身体、身体、位置、生命);
c、 圆形(眼睛x+3,眼睛y+8,4,4);//眼睛
}
如果(输入的键='p'| |输入的键='p')
{
c、 setColor(Color.blue);
Font f2=新字体(“自由式脚本”,Font.BOLD,56);
c、 setFont(f2);
c、 抽绳(“游戏暂停”,173250);
对于(int i=1;p==i;i++)
{
key_entered=c.getChar();
p++;
如果(输入的键='p'| |输入的键='p')
{
p=0;
背景();
重画(分数、轮廓、轮廓、轮廓、位置、身体、身体、位置、生命);
c、 圆角(眼x,眼y,4,4);//眼
}
c、 设置颜色(颜色为黑色);
}
p=1;
}
随机数=(int)(Math.random()*100)+1;
//起点
如果(运行时间==分数)
{
做
{
点x=(int)(Math.random()*1000)+1;
}
而(点|x<65 |点|x>546);
做
{
点y=(int)(Math.random()*1000)+1;
}
而(点y<90 | |点y>430);
运行时++;
}
c、 setColor(Color.green);
c、 圆角(x点,y点,8,8);
//点端
if(大纲>(点x-32)和大纲x<(点x+4)和大纲y>(点y-29)和大纲y<(点y+7))
{
分数=分数+1;
}
如果(轮廓_x<59)
{
轮廓_x=548;
体x=548;
眼x=569;
}
如果(大纲>549)
{
轮廓_x=60;
体x=60;
眼x=78;
}
如果(轮廓y<89)
{
轮廓y=419;
本体y=419;
眼y=425;
}
如果(轮廓y>420)
{
轮廓y=90;
本体y=90;
眼y=98;
}
}
而(1==1);
}//主方法
公共静态无效背景()
{
c、 setColor(新颜色(0,0,0));
c、 fillRect(0,0640500);
c、 setColor(新颜色(35,47,210));
Font f3=新字体(“Footlight MT Light”,Font.BOLD,16);
c、 setFont(f3);
c、 抽绳(“a=向左移动”,10,485);
c、 抽绳(“d=向右移动”,125,485);
c、 抽绳(“s=下移”,255,485);
c、 抽绳(“w=上移”,385485);
c、 抽绳(“p=暂停游戏”,500485);
}
公共静态无效重绘(整数分数、整数轮廓线、整数轮廓线、整数轮廓线位置、整数正文、整数正文、整数正文)
public class KeyEventDemo implements KeyListener {
typingArea = new JTextField(20);
typingArea.addKeyListener(this);
/** Handle the key typed event from the text field. */
public void keyTyped(KeyEvent e) {
// snip
}
/** Handle the key-pressed event from the text field. */
public void keyPressed(KeyEvent e) {
// snip
}
/** Handle the key-released event from the text field. */
public void keyReleased(KeyEvent e) {
// snip
}
class MyConsole extends Console {
public void keyPressed(KeyEvent e) {
super.keyPressed(e); // Call your teacher's code in case he does something
// set some shared variable with the key that was typed
// you'll read this shared variable in your main loop
}
}
c = new MyConsole();
c = new Console();
// The "Pac_man" class.
import java.awt.*;
import hsa.Console;
public class Pac_man {
public static volatile char lastChar;
static Console c;
public static void main(String [] args) {
c = new MyConsole();
do {
// read whatever character may have been set
// by the console
char key = lastChar;
...your event loop logic...
} while (running);
}
}
static class MyConsole extends Console {
// this method is called by the system whenever a key has been pressed
public void keyPressed(KeyEvent e) {
// call your prof's version of keyPressed
super.keyPressed(e);
// set the shared lastChar variable
Pac_man.lastChar = e.getKeyChar();
}
}