我已经习惯了很多我无法使用的命令的网站，这非常有帮助。我以为你们可以帮助我，帮助我理解我在这里做错了什么。 ＆＃34;兔子＆＃34; /＆＃34; R＆＃34;正在按我的意愿移动，但是旧位置没有从复制的数组中重置其旧值。失败的逻辑没有被调试，但忽略了。
编辑* 由于数组与程序之间的关系，我无法缩短代码。错误的准确描述是＆＃34; Rabbit＆＃34; /＆＃34; R＆＃34;从（使用代表值）GridCompOne [5] [5]移动到GridCompOne [4] [5]进入＆＃34; up＆＃34;在＆＃34;网格＆＃34;我有一个名为GridCompTwo的第二个数组，它是生成随机值时第一个网格的复制版本。应该发生的是Rabbit的值，其中= 4应该将GridCompOne [4] [5]替换为= 4并且旧位置GridCompOne [5] [5]应该被GridCompTwo替换[ 5] [5]旧值为3，它应该代表我指定的地面值。但是，取代价值似乎并不奏效。
import java.util.Random;
import java.util.Scanner;
public class SurvivalGameVersionTwo
{
private int Repeat;
public int WinLose = (1);
private int Turn = (1);
public static void main(String[] args)
{
String User;
int Repeat = (0);
//Creating Objects
SurvivalGameVersionTwo game = new SurvivalGameVersionTwo();
Score score = new Score();
Grid grid = new Grid();
Spawner spawner = new Spawner();
Display display = new Display();
User user = new User();
Time time = new Time();
Logic logic = new Logic();
Movement movement = new Movement();
//Calling object's class methods
Intro();
User = GetUser();
user.setName(User);
while (Repeat > 2);
{
game.Ready();
grid.RandomGridGenerator();
spawner.RabbitWolfSpawner();
movement.Copy();
while (game.WinLose <= 2)
{
display.UserGrid();
game.Turn = Turns(game.Turn);
movement.Movement();
game.WinLose = logic.WinLose(game.Turn);
time.Delay();
}
display.UserGrid();
Repeat = Repeat();
game.WinLose = (1);
}
}
public static void Intro()
{
System.out.printf("Welcome to the Rabbit Survival Game!\n");
System.out.println("Rules to win: Rabbit must cross the bridge.");
System.out.println("Rules to lose: Rabbir drowns in the water, \n"+
"eaten by the wolf, or starve to death in 30 turns.");
System.out.println("------------------------------------------");
}
public static String GetUser()
{
Scanner Input = new Scanner (System.in);
String Name;
System.out.println("Please type in your name please.");
Name = Input.next();
return Name;
}
public static void Ready()
{
Scanner Input = new Scanner (System.in);
String Ready;
String Yes = ("Yes");
String No = ("No");
System.out.println("Are you ready to play?");
System.out.println("Type in 'Yes', or 'No' to continue.");
Ready = Input.next();
if (Ready.equals(Yes) == true)
{
System.out.println("Lets begin!!!");
}
else if (Ready.equals(No) == true)
{
System.out.println("Goodbye, and hope you come back to play again.");
System.exit(0);
}
else
{
System.out.println("There was an error!!! Restart the program to try again.");
System.exit(0);
}
}
public static int Turns(int turns)
{
int Turns;
System.out.printf("Turn %d.",turns);
Turns = (turns + 1);
return Turns;
}
public static int Repeat()
{
Scanner Input = new Scanner (System.in);
int repeat;
System.out.println("Do you wish to play again?");
repeat = Input.nextInt();
return repeat;
}
}
class User
{
private String Name;
public void UserInfo(String name)
{
this.Name=name;
}
public String getName() {
return Name;
}
public void setName(String name) {
Name = name;
}
}
class Score
{
public static int Total = 0;
public static int Win = 0;
public static int Lose = 0;
public static double Ratio = 0;
}
class Grid {
public static int[][] GridCompOne = new int[10][10];
public static int[] Rabbit = new int[2];
public static int[] Wolf = new int[2];
public static void RandomGridGenerator() {
Random r = new Random();
int i = 1;
int j = 1;
int k = 0;
int Low = 1;
int High = 3;
int Random;
//parameters for bridge and water spawning
while (k <= 9) {
Random = r.nextInt(High - Low) + Low;
GridCompOne[0][k] = Random;
Random = r.nextInt(High - Low) + Low;
GridCompOne[k][0] = Random;
Random = r.nextInt(High - Low) + Low;
GridCompOne[9][k] = Random;
Random = r.nextInt(High - Low) + Low;
GridCompOne[k][9] = Random;
k++;
}
while (i <= 8) {
while (j <= 8) {
GridCompOne[i][j] = 3;
j++;
}
j = 1;
i++;
}
}
}
class Spawner extends Grid
{
public static void RabbitWolfSpawner()
{
Random r = new Random();
int Low = 1;
int High = 8;
int XAxis;
int YAxis;
int Random;
//Rabbit
Random = r.nextInt(High - Low) + Low;
XAxis = Random;
Random = r.nextInt(High - Low) + Low;
YAxis = Random;
GridCompOne[XAxis][YAxis] = 4;
Rabbit[0] = XAxis;
Rabbit[1] = YAxis;
//Wolf
Random = r.nextInt(High - Low) + Low;
XAxis = Random;
Random = r.nextInt(High - Low) + Low;
YAxis = Random;
GridCompOne[XAxis][YAxis] = 5;
Wolf[0] = XAxis;
Wolf[1] = YAxis;
}
}
class Movement extends Grid
{
private static int[][] GridCompTwo = new int[10][10];
public static void Copy()
{
System.arraycopy(GridCompOne, 0, GridCompTwo, 0, GridCompOne.length);
}
//Rabbit and Wolf Movement
public static void Movement()
{
int High = 4;
int Low = 1;
Random R = new Random();
int Random = R.nextInt(High - Low) + Low;
//Rabbit
switch (Random)
{
case 1:
{
//Up
GridCompOne[Rabbit[0]][Rabbit[1]] = GridCompTwo[Rabbit[0]][Rabbit[1]];
GridCompOne[Rabbit[0] - 1][Rabbit[1]] = 4;
Rabbit[0] = (Rabbit[0] - 1);
break;
}
case 2:
{
//Down
GridCompOne[Rabbit[0]][Rabbit[1]] = GridCompTwo[Rabbit[0]][Rabbit[1]];
GridCompOne[Rabbit[0] + 1][Rabbit[1]] = 4;
Rabbit[0] = (Rabbit[0] + 1);
break;
}
case 3:
{
//Left
GridCompOne[Rabbit[0]][Rabbit[1]] = GridCompTwo[Rabbit[0]][Rabbit[1]];
GridCompOne[Rabbit[0]][Rabbit[1] - 1] = 4;
Rabbit[1] = (Rabbit[1] - 1);
break;
}
case 4:
{
//Right
GridCompOne[Rabbit[0]][Rabbit[1]] = GridCompTwo[Rabbit[0]][Rabbit[1]];
GridCompOne[Rabbit[0]][Rabbit[1] + 1] = 4;
Rabbit[1] = (Rabbit[1] + 1);
break;
}
default:
{
System.out.println("There was an error!!!");
System.exit(0);
}
}
Random = R.nextInt(High - Low) + Low;
//Wolf
switch (Random)
{
case 1: {
//Up
GridCompOne[Wolf[0]][Wolf[1]] = GridCompTwo[Wolf[0]][Wolf[1]];
GridCompOne[Wolf[0] - 1][Wolf[1]] = 5;
Wolf[0] = (Wolf[0] - 1);
break;
}
case 2: {
//Down
GridCompOne[Wolf[0]][Wolf[1]] = GridCompTwo[Wolf[0]][Wolf[1]];
GridCompOne[Wolf[0] + 1][Wolf[1]] = 5;
Wolf[0] = (Wolf[0] + 1);
break;
}
case 3: {
//Left
GridCompOne[Wolf[0]][Wolf[1]] = GridCompTwo[Wolf[0]][Wolf[1]];
GridCompOne[Wolf[0]][Wolf[1] - 1] = 5;
Wolf[1] = (Wolf[1] - 1);
break;
}
case 4: {
//Right
GridCompOne[Wolf[0]][Wolf[1]] = GridCompTwo[Wolf[0]][Wolf[1]];
GridCompOne[Wolf[0]][Wolf[1] + 1] = 5;
Wolf[1] = (Wolf[1] + 1);
break;
}
default: {
System.out.println("There was an error!!!");
System.exit(0);
}
}
}
}
class Display extends Movement
{
private static char[][] GridUser = new char[10][10];
public static void UserGrid()
{
int i = 0;
int j = 0;
char Letter = ' ';
System.out.println("---------------------");
while (i <= 9)
{
while (j <= 9)
{
System.out.print("|");
switch (GridCompOne[i][j])
{
case 1:
{
//Water
Letter = '~';
break;
}
case 2:
{
//Bridge
Letter = '=';
break;
}
case 3:
{
//Ground
Letter = ',';
break;
}
case 4:
{
//Rabbit
Letter = 'R';
break;
}
case 5:
{
//Wolf
Letter = 'W';
break;
}
default:
{
//Error!!!
System.out.println("There was an error in the program!!!");
System.exit(0);
}
}
GridUser[i][j] = Letter;
System.out.print(GridUser[i][j]);
j++;
}
System.out.print("|");
System.out.println();
System.out.println("---------------------");
j = 0;
i++;
}
}
}
class Logic extends Grid
{
public static int WinLose(int counter)
{
int winlose = (0);
if(GridCompOne[Rabbit[0]][Rabbit[1]]==1)
{
System.out.println("The Rabbit has drowned!");
System.out.println("Game over!");
Score.Lose = Score.Lose + 1;
winlose = 3;
}
else if(GridCompOne[Rabbit[0]][Rabbit[1]]==2)
{
System.out.println("The Rabbit has Escaped!");
System.out.println("Game over!");
Score.Win = Score.Win + 1;
winlose = 3;
}
else if(GridCompOne[Rabbit[0]][Rabbit[1]]==5)
{
System.out.println("The Rabbit has been Eaten by the Wolf!");
System.out.println("Game over!");
Score.Lose = Score.Lose + 1;
winlose = 3;
}
else if(counter>30)
{
System.out.println("The Rabbit has starved to death");
System.out.println("Game over!");
Score.Lose = Score.Lose + 1;
winlose = 3;
}
else
{
System.out.println(" (Next Turn in a couple seconds)");
}
return winlose;
}
}
class Time
{
public static void Delay()
{
try
{
long Seconds = (2000);
Thread.sleep(Seconds);
}
catch (InterruptedException e)
{
System.out.println("...");
}
}
}
答案 0 :(得分：0)
问题的根本原因是System.arraycopy。根据我的理解，它是复制参考而不是值（可能是我错了）
我改为手动复制，然后它正在工作，以更换阵列的逻辑。请使用我的评论检查以下修改后的代码
import java.util.Random;
import java.util.Scanner;
public class SurvivalGameVersionTwo
{
private int Repeat;
public int WinLose = (1);
private int Turn = (1);
public static void main(String[] args)
{
String User;
int Repeat = (3);//changed: to enter into while loop Repeat should be more than 2
//Creating Objects
SurvivalGameVersionTwo game = new SurvivalGameVersionTwo();
Score score = new Score();
Grid grid = new Grid();
Spawner spawner = new Spawner();
Display display = new Display();
User user = new User();
Time time = new Time();
Logic logic = new Logic();
Movement movement = new Movement();
//Calling object's class methods
Intro();
User = GetUser();
user.setName(User);
while (Repeat > 2)//changed: removed ;
{
game.Ready();
grid.RandomGridGenerator();
movement.Copy();//changed:First copy then change GridCompOne array
spawner.RabbitWolfSpawner();
while (game.WinLose <= 2)
{
display.UserGrid();
game.Turn = Turns(game.Turn);
movement.Movement();
game.WinLose = logic.WinLose(game.Turn);
time.Delay();
}
display.UserGrid();
Repeat = Repeat();
game.WinLose = (1);
}
}
public static void Intro()
{
System.out.printf("Welcome to the Rabbit Survival Game!\n");
System.out.println("Rules to win: Rabbit must cross the bridge.");
System.out.println("Rules to lose: Rabbir drowns in the water, \n"+
"eaten by the wolf, or starve to death in 30 turns.");
System.out.println("------------------------------------------");
}
public static String GetUser()
{
Scanner Input = new Scanner (System.in);
String Name;
System.out.println("Please type in your name please.");
Name = Input.next();
return Name;
}
public static void Ready()
{
Scanner Input = new Scanner (System.in);
String Ready;
String Yes = ("Yes");
String No = ("No");
System.out.println("Are you ready to play?");
System.out.println("Type in 'Yes', or 'No' to continue.");
Ready = Input.next();
if (Ready.equals(Yes) == true)
{
System.out.println("Lets begin!!!");
}
else if (Ready.equals(No) == true)
{
System.out.println("Goodbye, and hope you come back to play again.");
System.exit(0);
}
else
{
System.out.println("There was an error!!! Restart the program to try again.");
System.exit(0);
}
}
public static int Turns(int turns)
{
int Turns;
System.out.printf("Turn %d.",turns);
Turns = (turns + 1);
return Turns;
}
public static int Repeat()
{
Scanner Input = new Scanner (System.in);
int repeat;
System.out.println("Do you wish to play again?");
repeat = Input.nextInt();
return repeat;
}
}
class User
{
private String Name;
public void UserInfo(String name)
{
this.Name=name;
}
public String getName() {
return Name;
}
public void setName(String name) {
Name = name;
}
}
class Score
{
public static int Total = 0;
public static int Win = 0;
public static int Lose = 0;
public static double Ratio = 0;
}
class Grid {
public static int[][] GridCompOne = new int[10][10];
public static int[] Rabbit = new int[2];
public static int[] Wolf = new int[2];
public static void RandomGridGenerator() {
Random r = new Random();
int i = 1;
int j = 1;
int k = 0;
int Low = 1;
int High = 3;
int Random;
//parameters for bridge and water spawning
while (k <= 9) {
Random = r.nextInt(High - Low) + Low;
GridCompOne[0][k] = Random;
Random = r.nextInt(High - Low) + Low;
GridCompOne[k][0] = Random;
Random = r.nextInt(High - Low) + Low;
GridCompOne[9][k] = Random;
Random = r.nextInt(High - Low) + Low;
GridCompOne[k][9] = Random;
k++;
}
while (i <= 8) {
while (j <= 8) {
GridCompOne[i][j] = 3;
j++;
}
j = 1;
i++;
}
}
}
class Spawner extends Grid
{
public static void RabbitWolfSpawner()
{
Random r = new Random();
int Low = 1;
int High = 8;
int XAxis;
int YAxis;
int Random;
//Rabbit
Random = r.nextInt(High - Low) + Low;
XAxis = Random;
Random = r.nextInt(High - Low) + Low;
YAxis = Random;
GridCompOne[XAxis][YAxis] = 4;
Rabbit[0] = XAxis;
Rabbit[1] = YAxis;
//Wolf
Random = r.nextInt(High - Low) + Low;
XAxis = Random;
Random = r.nextInt(High - Low) + Low;
YAxis = Random;
GridCompOne[XAxis][YAxis] = 5;
Wolf[0] = XAxis;
Wolf[1] = YAxis;
}
}
class Movement extends Grid
{
private static int[][] GridCompTwo = new int[10][10];
public static void Copy()
{
//System.arraycopy(GridCompOne, 0, GridCompTwo, 0, GridCompOne.length);
//changed
//As of my understanding System.arraycopy is not coping values , it is copying references
for(int i=0;i<GridCompOne.length;i++){
for(int j=0;j<GridCompOne[i].length;j++){
GridCompTwo[i][j]=GridCompOne[i][j];
}
}
}
//Rabbit and Wolf Movement
public static void Movement()
{
int High = 4;
int Low = 1;
Random R = new Random();
int Random = R.nextInt(High - Low) + Low;
//Rabbit
switch (Random)
{
case 1:
{
//Up
GridCompOne[Rabbit[0]][Rabbit[1]] = GridCompTwo[Rabbit[0]][Rabbit[1]];
GridCompOne[Rabbit[0] - 1][Rabbit[1]] = 4;
Rabbit[0] = (Rabbit[0] - 1);
break;
}
case 2:
{
//Down
GridCompOne[Rabbit[0]][Rabbit[1]] = GridCompTwo[Rabbit[0]][Rabbit[1]];
GridCompOne[Rabbit[0] + 1][Rabbit[1]] = 4;
Rabbit[0] = (Rabbit[0] + 1);
break;
}
case 3:
{
//Left
GridCompOne[Rabbit[0]][Rabbit[1]] = GridCompTwo[Rabbit[0]][Rabbit[1]];
GridCompOne[Rabbit[0]][Rabbit[1] - 1] = 4;
Rabbit[1] = (Rabbit[1] - 1);
break;
}
case 4:
{
//Right
GridCompOne[Rabbit[0]][Rabbit[1]] = GridCompTwo[Rabbit[0]][Rabbit[1]];
GridCompOne[Rabbit[0]][Rabbit[1] + 1] = 4;
Rabbit[1] = (Rabbit[1] + 1);
break;
}
default:
{
System.out.println("There was an error!!!");
System.exit(0);
}
}
Random = R.nextInt(High - Low) + Low;
//Wolf
switch (Random)
{
case 1: {
//Up
GridCompOne[Wolf[0]][Wolf[1]] = GridCompTwo[Wolf[0]][Wolf[1]];
GridCompOne[Wolf[0] - 1][Wolf[1]] = 5;
Wolf[0] = (Wolf[0] - 1);
break;
}
case 2: {
//Down
GridCompOne[Wolf[0]][Wolf[1]] = GridCompTwo[Wolf[0]][Wolf[1]];
GridCompOne[Wolf[0] + 1][Wolf[1]] = 5;
Wolf[0] = (Wolf[0] + 1);
break;
}
case 3: {
//Left
GridCompOne[Wolf[0]][Wolf[1]] = GridCompTwo[Wolf[0]][Wolf[1]];
GridCompOne[Wolf[0]][Wolf[1] - 1] = 5;
Wolf[1] = (Wolf[1] - 1);
break;
}
case 4: {
//Right
GridCompOne[Wolf[0]][Wolf[1]] = GridCompTwo[Wolf[0]][Wolf[1]];
GridCompOne[Wolf[0]][Wolf[1] + 1] = 5;
Wolf[1] = (Wolf[1] + 1);
break;
}
default: {
System.out.println("There was an error!!!");
System.exit(0);
}
}
}
}
class Display extends Movement
{
private static char[][] GridUser = new char[10][10];
public static void UserGrid()
{
int i = 0;
int j = 0;
char Letter = ' ';
System.out.println("---------------------");
while (i <= 9)
{
while (j <= 9)
{
System.out.print("|");
switch (GridCompOne[i][j])
{
case 1:
{
//Water
Letter = '~';
break;
}
case 2:
{
//Bridge
Letter = '=';
break;
}
case 3:
{
//Ground
Letter = ',';
break;
}
case 4:
{
//Rabbit
Letter = 'R';
break;
}
case 5:
{
//Wolf
Letter = 'W';
break;
}
default:
{
//Error!!!
System.out.println("There was an error in the program!!!");
System.exit(0);
}
}
GridUser[i][j] = Letter;
System.out.print(GridUser[i][j]);
j++;
}
System.out.print("|");
System.out.println();
System.out.println("---------------------");
j = 0;
i++;
}
}
}
class Logic extends Grid
{
public static int WinLose(int counter)
{
int winlose = (0);
if(GridCompOne[Rabbit[0]][Rabbit[1]]==1)
{
System.out.println("The Rabbit has drowned!");
System.out.println("Game over!");
Score.Lose = Score.Lose + 1;
winlose = 3;
}
else if(GridCompOne[Rabbit[0]][Rabbit[1]]==2)
{
System.out.println("The Rabbit has Escaped!");
System.out.println("Game over!");
Score.Win = Score.Win + 1;
winlose = 3;
}
else if(GridCompOne[Rabbit[0]][Rabbit[1]]==5)
{
System.out.println("The Rabbit has been Eaten by the Wolf!");
System.out.println("Game over!");
Score.Lose = Score.Lose + 1;
winlose = 3;
}
else if(counter>30)
{
System.out.println("The Rabbit has starved to death");
System.out.println("Game over!");
Score.Lose = Score.Lose + 1;
winlose = 3;
}
else
{
System.out.println(" (Next Turn in a couple seconds)");
}
return winlose;
}
}
class Time
{
public static void Delay()
{
try
{
long Seconds = (2000);
Thread.sleep(Seconds);
}
catch (InterruptedException e)
{
System.out.println("...");
}
}
}
感谢