using UnityEngine;

public class MouseDragDistance : MonoBehaviour
{
    private Vector3 startPosition;
    private Vector3 endPosition;
    private bool isDragging = false;
    public float distance = 100;
    // 当鼠标在物体上按下时调用
    private void OnMouseDown()
    {
        isDragging = true;
        // 记录鼠标按下时的屏幕位置
        startPosition = Input.mousePosition;
    }

    // 当鼠标在物体上拖动时持续调用
    private void OnMouseDrag()
    {
        if (isDragging)
        {
            // 实时更新当前鼠标位置
            endPosition = Input.mousePosition;
            float dragDistance = Vector3.Distance(startPosition, endPosition);
            if (TryGetComponent(out PC_DragEvent dragEvent))
            {
                if(dragDistance > distance)
                {
                    dragEvent.stay?.Invoke(gameObject);
                }
            }
            //Debug.Log("鼠标在物体上的拖拽距离为: " + dragDistance + " 像素");
        }
    }

    // 当鼠标在物体上释放时调用
    private void OnMouseUp()
    {
        isDragging = false;
    }
}