Xna -对象共享相同的纹理

本文关键字：纹理 共享 对象 Xna | 更新日期: 2023-09-27 18:15:20

在我的游戏中，我有一个Ai类，它基本上是游戏中所有Ai的链表。这个类包含每个ai的默认纹理，所有ai的独立类都继承这个类，这样它们都可以继承ai类已经加载的默认纹理。然而，我似乎对此有问题。我的游戏在运行时从未加载gui，并且通过调试，似乎游戏与我传递的纹理有问题。你是否不能加载单个纹理并将相同的纹理传递给另一个对象使用?

人工智能类:

class AIs
{
    private GraphicsDevice graphics;
    private ContentManager content;
    private SpriteBatch spriteBatch;
    private LinkedList<object> ais;
    private LinkNode<object> current;
    //Default Textures
    private Texture2D robotTexture
    // Default Color Datas
    private Color[] robotColorData;
    public AIs()
    {
    }
    public void Load(ContentManager content, GraphicsDevice graphics, SpriteBatch spriteBatch)
    {
        this.spriteBatch = spriteBatch;
        this.graphics = graphics;
        this.content = content;
        // Loading Default Textures
        robotTexture = content.Load<Texture2D>("robot");
        // Loading Default Color Data
        robotColorData = new Color[robotTexture.Width * robotTexture.Height];
        robotTexture.GetData(robotColorData);
    }
    public void Update()
    {
        current = ais.getHead();
        while (current.getNext() != null)
        {
            if (current.getData() is Robot)
            {
                ((Robot)current.getData()).Update();
            }
        }
    }
    public void Draw()
    {
        current = ais.getHead();
        while (current.getNext() != null)
        {
            if (current.getData() is Robot)
            {
                ((Robot)current.getData()).Draw();
            }
        } 
    }
    public addRobot(float spawnX, float spawnY)
    {
        Robot temp = new Robot(spawnX, spawnY);
        temp.Load(content, graphics, spriteBatch);
        ais.add(temp);
    }
    public Texture2D getRobotTexture()
    {
        return robotTexture;
    }
    public Color[] getRobotColorData()
    {
        return robotColorData;
    }
}

机器人类:

class Robot : AIs
{
    private GraphicsDevice graphics;
    private ContentManager content;
    private SpriteBatch spriteBatch;
    private Texture2D robotTexture;
    private Color[] robotColorData;
    private Rectangle robotRectangle;
    private Vector2 robotPosition = Vector2.Zero;
    public Robot(float spawnX, float spawnY)
    {
        robotPosition = new Vector2(spawnX, spawnY);
    }
    new public void Load(ContentManager content, GraphicsDevice graphics, SpriteBatch spriteBatch)
    {
        this.spriteBatch = spriteBatch;
        this.graphics = graphics;
        this.content = content;
        robotTexture = getRobotTexture();
        robotColorData = getRobotColorData();
    }
    new public void Update()
    {
        robotRectangle = new Rectangle((int)robotPosition.X, (int)robotPosition.Y, robotTexture.Width, robotTexture.Height);
    }
    new public void Draw()
    {
        spriteBatch.Draw(robotTexture, robotPosition, Color.White);
    }
}

Xna -对象共享相同的纹理

结果是，你所要做的就是在纹理和颜色数据旁边添加关键字"static"。如果不放置static，那么在创建类时，它将继承方法和变量，但变量将是new null，因为它是类的新实例。因此，在它旁边放置static会使所有实例的值保持不变。

在AI类中: 
//Default Textures
private static Texture2D robotTexture
// Default Color Datas
private static Color[] robotColorData;

问题似乎出在你对继承的使用上。

发生的是你运行你的机器人load方法，它通过它的getrobotture方法从自身获取robotexture。这个方法只返回robotTexture，所以你不妨写robotTexture = robotTexture。

但是由于这个实例没有运行ai。加载，robotexture为空

说实话;仔细研究一下继承!

更有帮助;

似乎你真正想要的是有一个机器人管理器，简化了机器人的产卵。对于这个问题，继承不是答案。试试这样做:

public class RobotManager
{
    private SpriteBatch spriteBatch;
    private Texture2D robotTexture;
    private List<Robot> robots;
    public RobotManager(SpriteBatch spriteBatch, Texture2D texture)
    {
        this.spriteBatch = spriteBatch;
        this.robotTexture = texture;
        robots = new List<Robot>();
    }
    public void Update()
    {
        foreach (var robot in robots)
            robot.Update();
    }
    public void Draw()
    {
        foreach (var robot in robots)
            robot.Draw();
    }
    public void AddRobot(Vector2 position, Texture2D customTexture = null)
    {
        //Creates a new robot with position set and custom texture if specified
        var newRobot = new Robot(spriteBatch, position, (customTexture == null) ? robotTexture : customTexture);
        robots.Add(newRobot);
    }
}
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