我正在为我的计算机课程制作一个像男人一样的程序，这就是我到目前为止所做的...我在这个程序中加入鬼魂。但我不知道如何使它成为程序不会停止一切并等待用户输入。就像我使用c.getchar（）时一样，它会停止程序并等待用户输入。还有什么我可以使用的不会停止程序所以它可能让鬼追逐那个男人......请帮忙！
// 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
答案 0 :(得分：1)
我没有阅读你的代码（将其缩短到相关部分以使其更具可读性），但我觉得你正在以错误的方式接近它。您可能想要使用KeyListener。这将允许您“监听”程序运行时同时按下的键。
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
}
如果你有焦点问题，我建议你也可以阅读How to Use Key Bindings来替代KeyListeners。
答案 1 :(得分：0)
看起来你的老师制作了一个自定义的Console类，你用它来画你的pacman游戏？
我用google搜索“hsa.Console”并找到了一些Javadoc ..所以假设我这是你正在使用的Console类：http://www.brentwoodhigh.com/apcs/holt/hsa-javadoc/Console.html
根据您老师的Javadoc Console实现KeyListener，您可以将自己的控制台子类化为自己的控制台，并在那里监听关键事件。
示例：
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
}
}
KeyEvent javadoc：http://docs.oracle.com/javase/1.5.0/docs/api/java/awt/event/KeyEvent.html
在你的主要任务中：
c = new MyConsole();
而不是
c = new Console();
在您的主循环中，您需要轮询输入的最后一个键...从技术上讲，您需要一个共享的volatile变量，但我猜您的老师要么不知道，要么正在介绍你早早可笑地穿线。
您的文件将类似于：
// 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();
}
}
当然，无法访问您老师所创建的图书馆，我只能对有效的方法做出有根据的猜测。