Question

有人可以帮助我解决2D阵列网格的播放器移动问题吗？我能够打印出网格并显示出来。我也可以在网格上打印出播放器。我只是很难将播放器移动到下一个位置。我尝试查看C ++代码以尝试对其进行复制，但进展并不顺利。

import java.util.Scanner;
import java.util.Random;
public class Components 
{
public Components()
{       
    Graph();
}

void Graph()
{
    int Row,Col,Num1,Num2;
    int p1 = 0;
    int p2 = 0;
    char Move;
    boolean Running = true;
    Scanner input = new Scanner(System.in);
    //Random random = new Random();
    System.out.println("Please Enter The Number Of Row:");
    Row = input.nextInt();
    System.out.println("Please Enter The Number Of Columns:");
    Col = input.nextInt();
    int Array[][] = new int [Row][Col];
    //Num1 = random.nextInt(Row) + 1;
    //Num2 = random.nextInt(Col) + 1;
    for(int i=0;i<Row;i++)
    {
    for(int x=0;x<Col;x++)
    {
    Array[i][x] = 0;
    Array[p1][p2] = 1;
    }
    }
    for(int i=0;i<Row;i++)
    {
    for(int x=0;x<Col;x++)
    {
    System.out.print(Array[i][x] + "\t");
    }
    System.out.println();
    }
    while(Running)
    {
    Move = input.next().charAt(0);
    switch(Move)
    {
    case 'w':
    case 'W':
    Array[p1][p2] = 0;
    Array[p1+=1][p2] = 1;
    break;
    case 's':
    case 'S':
    Array[p1][p2] = 0;
    Array[p1-=1][p2] = 1;
    break;
    case 'd':
    case 'D':
    Array[p1][p2] = 0;
    Array[p1][p2+=1] = 1;
    break;
    case 'a':
    case 'A':
    Array[p1][p2] = 0;
    Array[p1][p2-=1] = 1;
    break;
    case 'l':
    case 'L':
    Running = false;
    input.close();
    break;
    default:
    System.out.println("Please Press Proper Keys!");
    break;
    }
    }
    }
    }

  public class Main {

  public static void main(String[] args) {

  new Components();
   }

   }

Answer 1

我猜测W键应该看起来像是向上移动。当您从零开始打印行时，第一行为零，因此对于情况W，您希望递减p1而不是递增，对于情况S，您希望递增而不是递减。

您没有说出移动球员时会发生什么，所以我猜这里。您的代码只会在创建时打印出网格。此时，初始位置将始终位于左上角（p1 = 0。p2 = 0）。如果在每次移动后打印网格，您都会看到它发生了变化。

例如如果您在Component类中的代码是：

public Components()
{       
    Graph();
}

    void Graph() {
        int Row, Col, Num1, Num2;
        int p1 = 0;
        int p2 = 0;
        char Move;
        boolean Running = true;
        Scanner input = new Scanner(System.in);
        // Random random = new Random();
        System.out.println("Please Enter The Number Of Row:");
        Row = input.nextInt();
        System.out.println("Please Enter The Number Of Columns:");
        Col = input.nextInt();
        int Array[][] = new int[Row][Col];
        // Num1 = random.nextInt(Row) + 1;
        // Num2 = random.nextInt(Col) + 1;
    // Don't need to do this : int[] will initialise to 0    
    //    for(int i=0;i<Row;i++)
    //    {
    //    for(int x=0;x<Col;x++)
    //    {
    //    Array[i][x] = 0;
    //    }
    //    }
        Array[p1][p2] = 1;
        print(Array);
        while (Running) {
            Move = input.next().charAt(0);
            switch (Move) {
            case 'w':
            case 'W':
                Array[p1][p2] = 0;
                Array[--p1][p2] = 1;
                print(Array);
                break;
            case 's':
            case 'S':
                Array[p1][p2] = 0;
                Array[++p1][p2] = 1;
                print(Array);
                break;
            case 'd':
            case 'D':
                Array[p1][p2] = 0;
                Array[p1][++p2] = 1;
                print(Array);
                break;
            case 'a':
            case 'A':
                Array[p1][p2] = 0;
                Array[p1][--p2] = 1;
                print(Array);
                break;
            case 'l':
            case 'L':
                Running = false;
                input.close();
                break;
            default:
                System.out.println("Please Press Proper Keys!");
                break;
            }
        }
    }

    private void print(int[][] grid) {
        for (int i = 0; i < grid.length; i++) {
            for (int x = 0; x < grid[0].length; x++) {
                System.out.print(grid[i][x] + "\t");
            }
            System.out.println();
        }
    }

}

启动应用程序，将3用作行，将4用作列，您将看到：

1   0   0   0   
0   0   0   0   
0   0   0   0

如果您随后输入d，则会看到：

0   1   0   0   
0   0   0   0   
0   0   0   0

然后输入s，您将看到：

0   0   0   0   
0   1   0   0   
0   0   0   0

您需要解释一下您期望看到的内容，否则没有人可以提供帮助。

Answer 2

// 2d数组，其中玩家移动在随机起始位置

  import java.util.Scanner;
  import java.util.Random;
  public class Components 
  {
  public Components() 
  {     
    Graph();
  }

int Row,Col,Num1,Num2;
char Move;
boolean Running = true;
Scanner input = new Scanner(System.in);

void TwoArray(int gph [][])
{
    for(int i=0;i<Row;i++)
    {
    for(int x=0;x<Col;x++)
    {
    System.out.print(gph[i][x] + "\t");
    }
    System.out.println();
    }
}

void Graph() 
{
    Random random = new Random();
    System.out.println("Please Enter The Number Of Row:");
    Row = input.nextInt();
    System.out.println("Please Enter The Number Of Columns:");
    Col = input.nextInt();
    Num1 = random.nextInt(Row) + 1;
    Num2 = random.nextInt(Col) + 1;
    int Array[][] = new int [Row][Col];
    for(int i=0;i<Row;i++)
    {
    for(int x=0;x<Col;x++)
    {
    Array[i][x] = 0;
    }
    }
    Array[Num1][Num2] = 1;
    int p1 = Num1;
    int p2 = Num2;
    TwoArray(Array);
    while(Running)
    {
    Move = input.next().charAt(0);
    switch(Move)
    {
    case 'w':
    case 'W':
    Array[p1][p2] = 0;
    Array[p1-=1][p2] = 1;
    TwoArray(Array);
    break;
    case 's':
    case 'S':
    Array[p1][p2] = 0;
    Array[p1+=1][p2] = 1;
    System.out.flush();
    TwoArray(Array);
    break;
    case 'd':
    case 'D':
    Array[p1][p2] = 0;
    Array[p1][p2+=1] = 1;
    System.out.flush();
    TwoArray(Array);
    break;
    case 'a':
    case 'A':
    Array[p1][p2] = 0;
    Array[p1][p2-=1] = 1;
    System.out.flush();
    TwoArray(Array);
    break;
    case 'l':
    case 'L':
    Running = false;
    input.close();
    break;
    default:
    System.out.println("Please Press Proper Keys!");
    break;
    }
    }
    }
   }

二维数组网格播放器运动Java

2 个答案: