Question

我对团结真的很陌生，我正在尝试打牌，而且我遇到了坐标问题。我试图获得触摸的位置并使精灵移动到屏幕中的特定位置。这是我在c＃中的解决方法脚本：

using UnityEngine;
using System.Collections;

public class CardMovement : MonoBehaviour {

// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update () {
    Rect recta = new Rect (-4.71f,-3.98f,4.52f,6.8f);

    Touch To = new Touch ();

    Camera C = GetComponent<Camera>();

    Vector3 p = new Vector3 ();

    p = C.ScreenToWorldPoint (To.position);

    if (recta.Contains(p)== true){

        transform.Translate(0.79f,-1.13f,0f);

    }


}
}

问题是我不能让它移动到那个特定的位置。是因为坐标不匹配？有没有办法直接获取精灵的坐标而不键入它们？感谢您的帮助;）

Answer 1

如果你想要做的是检测用户敲击表面/区域的位置，该对象必须有一个对撞机，你应该使用Raycast来检测碰撞的位置。

Moving an Agent to a Position Clicked by the Mouse

在此示例中，他们使用统一的navmesh，但您不必，您要查找的信息位于 hit.point

Answer 2

I managed to move the card to the position I wanted ( not exactly ) And used another code that i built myself , your proposition I didn't use because I didn't understand or i guess it's using 3D script ( If i'm wrong please correct me ) so here is the updated version of my code :

 using UnityEngine;
 using System.Collections;

public class CardMovement : MonoBehaviour {
public RectTransform rectangle;

// Use this for initialization
void Start () {

    rectangle = GetComponent<RectTransform> ();


}

// Update is called once per frame
void Update () {

    if (rectangle.rect.Contains (Input.GetTouch (0).deltaPosition)){

        Vector2 V = new Vector2 (0.125f, 0.125f);

        transform.position = V;


    }


}
}

Now the main problems that i face :

the (0.125,0.125) that i used for the 2D vector gave me a place in the middle of the screen while it should be as i think for (0.5,0.5) vector (the last vector gave me a position of the card outside the screen ) .
When I used Camera.ScreenToWorldpoint or Camera.ScreenToViewportpoint the card didn't respond to the touch ( i guess it a problem of coordinates )

NOW THE MAIN QUESTION : WHAT IS THE DIFFERENCE BETWEEN THESE COORDINATES : World coordinates , screen coordinates and view port coordinates . I didn't find an explanation in the unity manual .

Thanks for help :) .

如何在Unity 2D中自动获取精灵的位置

2 个答案: