using UnityEngine;

public class DoorManager : MonoBehaviour
{
    private static GameObject lastDoor;  // 存储上一扇进入的门
    private static int lastDoorMaskValue;  // 存储上一扇门的Stencil Mask值

    private void OnTriggerEnter(Collider other)
    {
        // 检查进入的是否是玩家
        if (other.CompareTag("Player"))
        {
            // 恢复上一扇门的Stencil Mask值
            RestoreStencilMask(lastDoor);

            // 更新上一扇门和其Stencil Mask值
            lastDoor = gameObject;
            SetStencilMaskToZero(lastDoor);
        }
    }

    private void RestoreStencilMask(GameObject door)
    {
        if (door != null)
        {
            var renderer = door.GetComponent<Renderer>();
            if (renderer != null)
            {
                var material = renderer.material;
                if (material != null)
                {
                    material.SetInt("_StencilMask", lastDoorMaskValue);
                }
            }
            var childRenderer = door.transform.GetChild(0).GetComponent<Renderer>();
            if (childRenderer != null)
            {
                var childMaterial = childRenderer.material;
                if (childMaterial != null)
                {
                    childMaterial.SetInt("_StencilMask", lastDoorMaskValue);
                }
            }
        }
    }

    private void SetStencilMaskToZero(GameObject door)
    {
        if (door != null)
        {
            var renderer = door.GetComponent<Renderer>();
            if (renderer != null)
            {
                var material = renderer.material;
                if (material != null)
                {
                    lastDoorMaskValue = material.GetInt("_StencilMask");
                    material.SetInt("_StencilMask", 0);
                }
            }
            var childRenderer = door.transform.GetChild(0).GetComponent<Renderer>();
            if (childRenderer != null)
            {
                var childMaterial = childRenderer.material;
                if (childMaterial != null)
                {
                    childMaterial.SetInt("_StencilMask", 0);
                }
            }
        }
    }
}