using System.Collections.Generic;
using UnityEngine;

[AddComponentMenu("Chickenlord/Outline Glow Renderer")]
public class OutlineGlowRenderer : MonoBehaviour
{
	public bool DrawOutline = true;

	public bool IncludeChildMeshes;

	public GameObject glowObject;

	public Color OutlineColor = Color.cyan;

	public int ObjectBlurSteps = 2;

	public float ObjectBlurSpread = 0.6f;

	public float ObjectOutlineStrength = 3f;

	private bool ICMT;

	private int myID = -1;

	private int previousLayer;

	public int childCounter;

	public float renderDistance = -1f;

	private List<int> childLayers;

	private void Update()
	{
		if (myID == -1)
		{
			OutlineGlowEffectScript instance = OutlineGlowEffectScript.Instance;
			if (instance != null)
			{
				myID = instance.AddRenderer(this);
			}
		}
	}

	private void OnEnable()
	{
		if (glowObject == null)
		{
			glowObject = base.gameObject;
		}
		if (myID == -1)
		{
			try
			{
				myID = OutlineGlowEffectScript.Instance.AddRenderer(this);
				return;
			}
			catch
			{
				return;
			}
		}
		Debug.LogWarning("OutlineGlowRenderer enabled, although id is already/still assigned. Shouldn't happen.");
	}

	private void OnDisable()
	{
		if (myID != -1)
		{
			OutlineGlowEffectScript.Instance.RemoveRenderer(myID);
			myID = -1;
			childLayers = null;
		}
	}

	public void UpdateDistance()
	{
		if (!(renderDistance < 0f) && !(Camera.current == null))
		{
			Vector3 position = Camera.current.transform.position;
			float sqrMagnitude = (base.gameObject.transform.position - position).sqrMagnitude;
			DrawOutline = sqrMagnitude < renderDistance;
		}
	}

	public void SetLayer(int layer)
	{
		previousLayer = base.gameObject.layer;
		ICMT = IncludeChildMeshes;
		if (!DrawOutline || !base.enabled)
		{
			return;
		}
		if (ICMT)
		{
			if (childLayers == null)
			{
				childLayers = new List<int>();
			}
			else
			{
				childLayers.Clear();
			}
			SetLayerRecursive(base.transform, layer);
		}
		else
		{
			glowObject.layer = layer;
		}
	}

	public void ResetLayer()
	{
		childCounter = 0;
		glowObject.layer = previousLayer;
		if (ICMT)
		{
			ResetLayerRecursive(base.transform);
		}
	}

	private void SetLayerRecursive(Transform trans, int layer)
	{
		if (childLayers != null)
		{
			childLayers.Add(trans.gameObject.layer);
			trans.gameObject.layer = layer;
			for (int i = 0; i < trans.childCount; i++)
			{
				SetLayerRecursive(trans.GetChild(i), layer);
			}
		}
	}

	private void ResetLayerRecursive(Transform trans)
	{
		if (childLayers != null)
		{
			trans.gameObject.layer = childLayers[childCounter];
			childCounter++;
			for (int i = 0; i < trans.childCount; i++)
			{
				ResetLayerRecursive(trans.GetChild(i));
			}
		}
	}

	public void TurnOff()
	{
		ObjectOutlineStrength = 0f;
	}
}