我如何在数组中同时添加不同的对象并存储它们以供下一步移动？

Question

我正在学习Java，并为我的期末考试做游戏项目。我试图给我的数组添加不同的值，但当我打印数组时，每次它在地图上显示不同的对象时，我将在这里共享输出。这是主类：

import MAP.*;

导入人员*；

    Map map = new Map();
    Scanner sc = new Scanner(System.in);
    Person character = new Person("ahmet");
    Person npc = new Person("mehmet");
    npc.placeObject();
    character.setPosX(character.random1);
    character.setPosY(character.random2);
    character.placeCharacter(character.posX, character.posY);

    System.out.println(character.name);
    for (int i = 0 ; i <5 ;i++) {

        String a = sc.nextLine();
        character.MoveCharacter(a);

    }
    System.out.println("\n");
    }
}

public int posX;
public int posY;


public int getPosX(Random rnd){
    return posX;
}
public int getPosY(){
    return posY;
}
public void setPosX(int posX){
    this.posX=posX;
    System.out.println(posX);
}
public void setPosY(int posY){
    this.posY=posY;
    System.out.println(posY);
}
public Person(String name) {
    this.name = name;
}

public Person(String name,int posX,int posY) {
    this.name = name;
    this.posX= posX;
    this.posY= posY;
}  
public void placeCharacter(int x, int y){
    System.out.println(x+" "+y);
    gameMap[b[x]][a[y]] = "⚫";
    showMap();
}
}

```package MAP;

导入java.security.publickey；导入java.util.Random；

public class Map {
    public String[][] gameMap = {
            { "+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+",},
            { "|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|",},
            { "+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+",},
            { "|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|",},
            { "+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+",},
            { "|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|",},
            { "+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+",},
            { "|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|",},
            { "+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+",},
            { "|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|",},
            { "+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+",},
            { "|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|",},
            { "+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+",},
            { "|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|",},
            { "+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+",},
            { "|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|",},
            { "+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+",},
            { "|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|",},
            { "+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+",},
            { "|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|","|"," ","|",},
            { "+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+","+---+",},
    };
    Random rnd = new Random();
    public int random1 = rnd.nextInt(9);
    public int random2 = rnd.nextInt(9);
    public int [] a={1,4,7,10,13,16,19,22,25,28};
    public int [] b={1,3,5,7,9,11,13,15,17,19};
    public String tree="+";
    public void placeObject(){
        for(int i = 0; i<10;i++) {
            int random3 = rnd.nextInt(5);
            if (random3 < 3) {
                int random1 = rnd.nextInt(9);
                int random2 = rnd.nextInt(9);
                gameMap[b[random1]][a[random2]] = tree;
                System.out.println(random1 + " " + random2);
            }
            if(i==9)
                showMap();
        }
    }
    public void showMap() {
        for (int r=0; r<gameMap.length; r++){
            for (int c=0; c<gameMap[r].length; c++){
                System.out.print(gameMap[r][c]+" ");
            }
            System.out.println();

        }
    }



} 

我的一个朋友叫我提取地图，但我不知道该怎么做。这些是对象图像图像

Answer 1

为什么Person扩展映射？这意味着每个人都是一个映射，而且每个人都有Map类中每个字段的单独副本，包括Gamemap。相反，应该将main方法中实例化的映射作为构造函数参数传递给每个人，并将map作为person的字段。

public Person(String name, int posX, int posY, Map map) {
    this.name = name;
    this.posX = posX;
    this.posY = posY;
    this.map = map;
}