java:用于 java 游戏的敌方玩家跟踪 AI

Question

我是第一次用 Java 创建游戏，目前我正在尝试让我的僵尸跟踪并跟随玩家。下面是我的代码。我创建了一个 Controller 类，并使用链表创建了多个僵尸。然后在我的僵尸更新方法中，我使用简单的 if 僵尸语句来跟踪玩家。问题是僵尸会追踪到玩家的初始起始位置，但不会追踪到玩家移动的位置。

在僵尸 update() 方法中，我使用了 System.println(player.getX());它表明玩家的位置没有在僵尸类中更新，所以这就是为什么他们只跟踪它的起始位置。我不知道如何解决这个问题。任何帮助将不胜感激。

僵尸类:

public class Zombie extends Entity{

Animation dwn,up, left, right;
BufferedImage north, south, east, west;

Sprites sprites = new Sprites();
Player player = new Player(100,100);


Rectangle boundsZombie;

String direction = "";


public Zombie(int x, int y){

    super(x,y);
    sprites.create();
    boundsZombie = new Rectangle(0,0, 32, 32);

}

public void update(){

    if(player.getX() > x){
        x = x + 1;
    }

    if(player.getX() < x){
        x = x - 1;
    }

    if(player.getY() > y){
        y = y + 1;
    }

    if(player.getY() < y){
        y = y - 1;
    }

    System.out.println(player.getX());
}



public Rectangle getBounds(){
    return new Rectangle((int) x, (int) y, 32, 32);
}

public void render(Graphics g){

    g.drawImage(sprites.zombieNorth, x, y, null);
    //g.setColor(Color.red);
    //g.fillRect((int) x + boundsZombie.x, (int) y + boundsZombie.y, boundsZombie.width, boundsZombie.height);

}

public int getX() {
    return x;
}

public void setX(int x) {
    this.x = x;
}

public int getY() {
    return y;
}

public void setY(int y) {
    this.y = y;
}

}

玩家类

公共(public)类播放器扩展实体{

Animation dwn,up, left, right;
BufferedImage north, south, east, west;
Sprites sprites = new Sprites();
KeyManager keyManager = new KeyManager();
Rectangle boundsPlayer;
//Controller c;


boolean movUp, movDwn, movRight, movLeft;
String direction = "";



public Player(int x, int y){
    super(x,y);
    sprites.create();
    dwn = new Animation(100, sprites.player_down);
    up = new Animation(100, sprites.player_up);
    left = new Animation(100, sprites.player_left);
    right = new Animation(100, sprites.player_right);
    north = sprites.playerNorth;
    south = sprites.playerSouth;
    east = sprites.playerEast;
    west = sprites.playerWest;

    boundsPlayer = new Rectangle(0,0, 32, 32);
}

public void setX(int x) {
    this.x = x;
}

public void setY(int y) {
    this.y = y;
}

public Rectangle getBounds(){
    return new Rectangle((int) x, (int) y, 32, 32);
}

/**
 * player tick method, used to move the player
 */
public void update(){

    if(Game.getKeyManager().up){
        y -= 3;
        direction = "north";


    }
    if(Game.getKeyManager().down){
        y += 3;
        direction = "south";

    }
    if(Game.getKeyManager().left){
        x -= 3;
        direction = "west";

    }

    if(Game.getKeyManager().right){
        x += 3;
        direction = "east";
        //System.out.println(x);
    }

}

public int getX() {
    return (int)x;
}

public int getY() {
    return (int)y;
}

public String getDirection(){
    return direction;
}

/**
 * method used to return players facing direction sprite
 * @return
 */
public BufferedImage getPlayerDirection(){
    if(direction == "north"){
        return north;
    }

    else if(direction == "south"){
        return south;
    }

    else if(direction == "east"){
        return east;
    }

    else{
        return west;
    }

}


public void render(Graphics g){
    g.drawImage(getCurrentAnimationFrame(), (int) x, (int) y, null);

    //g.setColor(Color.red);
    //g.fillRect((int) x + boundsPlayer.x, (int) y + boundsPlayer.y, boundsPlayer.width, boundsPlayer.height);
}


/**
 * method used to return the bufferedImage of current frame
 * @return
 */
public BufferedImage getCurrentAnimationFrame(){
    if(Game.getKeyManager().right == true){
        return right.getCurrentFrame();
    }

    else if(Game.getKeyManager().left == true){
        return left.getCurrentFrame();
    }

    else if(Game.getKeyManager().up == true){
        return up.getCurrentFrame();
    }

    else if(Game.getKeyManager().down == true){
        return dwn.getCurrentFrame();
    }

    else {
        return getPlayerDirection();
    }


}

Answer 1

发生这种情况是因为您的敌人类有一个玩家对象，而您的游戏类有一个完全不同的玩家对象。所以你的玩家位置在敌人类别中总是相同的。因此，在游戏类中进行敌人 AI 移动会更合乎逻辑。您的玩家或敌人类应该只保留角色的位置、方向或加载图像，无论它是敌人还是玩家。

我建议为敌人和玩家类创建一个父类，因为它们都有相似的特征。