无法使用 GUI 移动播放器。按钮

Question

我正在创建一个简单的游戏，现在我要移动我的玩家。我想移动我的播放器使用四个触摸按钮的移动。我正在使用GuiTexture按钮并使用下面的代码。然而，我得到了这个错误：

UnityEngine.GUI.Button(UnityEngine.Rect, string)的最佳重载方法匹配有一些无效参数"

如何修复？

代码

public class Player : MonoBehaviour {
    public float movement;
    public Vector3 input;
    private float maxSpeed=15f;
    private Vector3 spawn;
    public GameObject deathparticales;
    public GUITexture Left;
    public GUITexture Right;
    public GUITexture Up;
    public GUITexture Down;
    private bool moveRight, moveLeft, moveUp, moveDown;
    // Use this for initialization       
    void Start () {
        spawn = transform.position;
    }
    // Update is called once per frame
    void Update () {
        if (GUI.Button(Rect (50,50,50,50), Left))
        {
            Vector3 position = this.transform.position;
            position.x--;
            this.transform.position = position;
        }
        if (GUI.Button(Rect (100,50,50,50), Right))
        {
            Vector3 position = this.transform.position;
            position.x++;
            this.transform.position = position;
        }
        if (GUI.Button(Rect (75,100,50,50), Up))
            {
            Vector3 position = this.transform.position;
            position.y++;
            this.transform.position = position;
        }
        if (GUI.Button(Rect (25,100,50,50), Down))
        {
            Vector3 position = this.transform.position;
            position.y--;
            this.transform.position = position;
        }
        if (transform.position.y < -1) {
            Die ();
        }
    }
    void OnCollisionEnter(Collision death)
    {
        if(death.transform.tag == "Enemycollision")
        {
            Die();
        }
    }
    void OnTriggerEnter(Collider target)
    {
        if (target.transform.tag == "Target") {
        Gamemanager.completelevel();
        }
    }
    void Die()
    {
        Instantiate(deathparticales,transform.position,Quaternion.Euler(270,0,0));
        transform.position=spawn;
    }
}

Answer 1

如果您希望文本显示在按钮上，那么只需在引号中加上"左"、"下"、"上"one_answers"右"即可。如果你想要带图像的按钮，那么将GUITTexture类型更改为Texture（或Texture2D），如下所述-http://docs.unity3d.com/ScriptReference/GUI.Button.html