我无法模拟两个竞争对手之间的比赛。这是您的典型比赛计划，您使用随机数生成器来确定竞争对手使用的“移动”。如下面的代码所示，赛道由 50 个矩形组成，填充的矩形显示了每个参赛者在赛道上的位置。例如，一些“动作”使参赛者向右跳 9 个方格，或向后跳 2 个方格。当我运行小程序时，只显示初始起始位置；小程序不起作用。我意识到这是很多代码，但我需要做些什么来解决我的问题？我真的被困在这一点上。任何帮助表示赞赏。我只能用AWT，不能swing。这是类的作业：/这是代码：
import java.awt.*;
import java.applet.*;
public class Example extends Applet
{
Image tortoise, hare;
int tortX = 250, hareX = 250;
final int tortY = 100, hareY = 300, WIDTH = 15, HEIGHT = 50;
int turn; String turnNum;
int move; String tMove, hMove;
public void init()
{
tortoise = getImage( getDocumentBase(), "images/tortoise.gif" );
hare = getImage( getDocumentBase(), "images/hare.gif" );
move = 0; turn = 0;
}
public void control()
{
while (( tortX < 985 ) || ( hareX < 985 ))
{
move = (int)(10 * Math.random());
switch (move)
{
case 1:
case 2:
tortX += (3 * WIDTH);
hareX += (9 * WIDTH);
tMove = "Fast Plod"; hMove = "Big Hop";
break;
case 3:
case 4:
case 5:
tortX += (3 * WIDTH);
hareX += WIDTH;
tMove = "Fast Plod"; hMove = "Small Hop";
break;
case 6:
tortX += WIDTH;
if (hareX == 250) {} // DO NOTHING
else if (hareX <= (250 + (11 * WIDTH)))
hareX = 250;
else
hareX -= (12 * WIDTH);
tMove = "Slow Plod"; hMove = "Big Slip";
break;
case 7:
case 8:
tortX += (1 * WIDTH);
if (hareX == 250) {} // DO NOTHING
else if (hareX <= (250 + (WIDTH)))
hareX = 250;
else
hareX -= (2 * WIDTH);
tMove = "Slow Plod"; hMove = "Small Slip";
break;
case 9:
case 10:
if (tortX == 250) {} // DO NOTHING
else if (tortX <= (250 + (5 * WIDTH)))
tortX = 250;
else
tortX -= (6 * WIDTH);
tMove = "Slip"; hMove = "Fall Asleep. Zzz...";
break;
// Hare falls asleep. No action.
}
turn++; turnNum = (turn + "");
repaint();
for (int i = 1; i <= 10; i++)
{
delay();
}
}
tortX = 985; hareX = 985;
repaint();
}
public void paint( Graphics screen )
{
drawRace(screen);
if (tortX >= 985)
{
screen.setFont(new Font("Times New Roman", Font.ITALIC, 48));
screen.drawString("Tortoise Wins", 650, 240);
clearCurrent(screen);
fillNext(screen);
}
else if (hareX >= 985)
{
screen.setFont(new Font("Times New Roman", Font.ITALIC, 48));
screen.drawString("Tortoise Wins", 650, 240);
clearCurrent(screen);
fillNext(screen);
}
else
{
screen.drawString(("Turn " + turnNum), 621, 55);
screen.setFont(new Font("Times New Roman", Font.ITALIC, 12));
screen.drawString(tMove, 59, 65); screen.drawString(hMove, 66, 255);
clearCurrent(screen);
fillNext(screen);
}
stop();
}
public void clearCurrent( Graphics s )
{
s.clearRect(tortX+1, tortY+1, WIDTH-1, HEIGHT-1);
s.clearRect(hareX+1, hareY+1, WIDTH-1, HEIGHT-1);
}
public void fillNext( Graphics s )
{
s.fillRect(tortX+1, tortY+1, WIDTH-1, HEIGHT-1);
s.fillRect(hareX+1, hareY+1, WIDTH-1, HEIGHT-1);
}
public void drawRace( Graphics s )
{
// GENERATES INITIAL GRAPHICS FOR RACE
s.drawRect(250, 100, 750, 50);
s.drawRect(250, 300, 750, 50);
int lineX = 265, lineYi = 100, lineYf = 150;
for (int i = 1; i <= 98; i++)
{
if (lineX == 1000)
{
lineX = 265; lineYi = 300; lineYf = 350;
}
s.drawLine(lineX, lineYi, lineX, lineYf);
lineX += 15;
}
s.fillRect(tortX+1, tortY+1, WIDTH-1, HEIGHT-1);
s.fillRect(hareX+1, hareY+1, WIDTH-1, HEIGHT-1);
s.drawImage(tortoise, 59, 80, this);
s.drawImage(hare, 66, 271, this);
s.setFont(new Font("Times New Roman", Font.BOLD, 24));
s.drawString("Race", 250, 55);
}
public void delay()
{
for (int i = 0; i < 90000000; i++)
{
}
}
public void stop()
{
}
}