c# - 如何使触发的对象在与另一个对象碰撞时停止移动？

Question

我在实际拖动的游戏对象上遇到问题，并且由于我需要制作一些功能而触发了它的盒子对撞机。问题是我不知道如何阻止这个游戏对象移动到另一个正在碰撞的游戏对象之外。

//This is my object drag, might help.. it's a .cs code attached to the game object
void OnMouseDrag()
{
    Vector3 curScreenPoint = new Vector3(Input.mousePosition.x, Input.mousePosition.y, screenPoint.z);
    Vector3 curPosition = Camera.main.ScreenToWorldPoint(curScreenPoint) + offset;
    if (Global.noGrid[0]) //noGrid means inside the grid ('no' in Portuguese means 'in')
    {
        transform.position = Global.FindClosestObject(curPosition, "gizmo_peca").transform.position; // here i find the game closest gameobject inside the grid, i do that because i need a snap (that's why i need the trigger working to, to recognize which gameobject it's colliding
    }
    else
    {
        transform.position = new Vector3(curPosition.x, curPosition.y, curPosition.z);
    }

}

// This is what i tried but with no success in BlockForma.cs (It's how I call my gameobject above)
void OnTriggerEnter2D(Collider2D c)
{

    if (c.tag == "Forma")
    {
        c.rigidbody2D.velocity = new Vector2(0,0);
        Debug.Log("Hello");
    }
}

Answer 1

此解决方案经过测试，100% 有效。

如果你想停止游戏对象，

rigidbody2D.velocity = Vector2.zero; 

如果你想停止碰撞物体，

col.rigidbody2D.velocity = Vector2.zero;