每次命令输入后停止板随机化

Question

我的程序在我输入每个命令后都会生成一个新的游戏板。我只希望“P”更新移动，而棋盘和障碍物保持不变，直到游戏终止。感谢您提前的帮助，这是我的代码：

import java.util.Scanner;
import java.util.Random;

public class Adventure {

public static void main(String[] args) {
    // Create 2D array for game board.
    char grid[][]= new char[10][10];
    Scanner move = new Scanner(System.in);
    System.out.println("Here is the current game board:");
    System.out.println("-------------------------------");

    do{
        for(int i=0; i<grid.length; i++) {          
            for(int j=0; j<grid.length; j++) {
                double Random = Math.random();
                if(Random <=.05) {
                    grid[i][j]='*';
                }
                else if(Random > .06 && Random <= .15) {
                    grid[i][j]='X';
                }           
                else {
                    grid[i][j]='.';
                }               
                grid[0][0]='P';
                grid[9][9]='T';
                System.out.print(grid[i][j]);
            }
            System.out.println("");
        }               
        System.out.print("Enter your move (U/D/L/R)>");     
        String movePlayer = move.next();

        int x=0, y=0;

        if(movePlayer.equals("R")) {
            grid[y][x]='.';
            x++;
        }
        else if(movePlayer.equals("L")) {
            grid[y][x]='.';
            x--;
        }
        else if(movePlayer.equals("U")) {
            grid[y][x]='.';
            y++;
        }
        else if(movePlayer.equals("D")) {
            grid[y][x]='.';
            y--;
        }
        else if(grid[y][x]=='*') {
            System.out.println("You fell in a pit. Game Over.");
        }
        else if(grid[y][x]=='X') {
            System.out.println("That spot is blocked. Please enter another move.");
        }
        else if(grid[y][x]=='T')
            System.out.println("Congratulations! You've found the treasure!");
        else {

            System.out.print(grid[y][x]);
        }
    }while('P' != 'T');
}

}

Answer 1

将生成棋盘的代码移到 do ... while() 循环之外：

// generate the board once at the beginning of the program.
do
{
  // update moves repeatedly until game is over
} while (<game over perdicate>)