using System;
using UnityEngine;

[AddComponentMenu("Modifiers/Modify Object")]
[ExecuteInEditMode]
public class MegaModifyObject : MegaModifiers
{
	[HideInInspector]
	public Mesh cachedMesh;

	public bool InvisibleUpdate;

	private bool visible = true;

	private int restorekeep;

	private static int CompareOrder(MegaModifier m1, MegaModifier m2)
	{
		return m1.Order - m2.Order;
	}

	[ContextMenu("Resort")]
	public virtual void Resort()
	{
		BuildList();
	}

	[ContextMenu("Help")]
	public virtual void Help()
	{
		Application.OpenURL("http://www.west-racing.com/mf/?page_id=444");
	}

	[ContextMenu("Remove Modify Object (Keep deformed mesh)")]
	public virtual void RemoveKeep()
	{
		MegaModifier[] components = GetComponents<MegaModifier>();
		for (int i = 0; i < components.Length; i++)
		{
			if (Application.isEditor)
			{
				UnityEngine.Object.DestroyImmediate(components[i]);
			}
			else
			{
				UnityEngine.Object.Destroy(components[i]);
			}
		}
		restorekeep = 1;
		if (Application.isEditor)
		{
			UnityEngine.Object.DestroyImmediate(this);
		}
		else
		{
			UnityEngine.Object.Destroy(this);
		}
	}

	[ContextMenu("Remove Modify Object (Restore Mesh)")]
	public virtual void RemoveRestore()
	{
		MegaModifier[] components = GetComponents<MegaModifier>();
		for (int i = 0; i < components.Length; i++)
		{
			if (Application.isEditor)
			{
				UnityEngine.Object.DestroyImmediate(components[i]);
			}
			else
			{
				UnityEngine.Object.Destroy(components[i]);
			}
		}
		restorekeep = 2;
		if (Application.isEditor)
		{
			UnityEngine.Object.DestroyImmediate(this);
		}
		else
		{
			UnityEngine.Object.Destroy(this);
		}
	}

	private void OnDestroy()
	{
		if (mesh != cachedMesh && (restorekeep == 0 || restorekeep == 2) && !SetMeshNew(base.gameObject, cachedMesh))
		{
			if (Application.isEditor)
			{
				UnityEngine.Object.DestroyImmediate(mesh);
			}
			else
			{
				UnityEngine.Object.Destroy(mesh);
			}
		}
	}

	private void Start()
	{
		if (dynamicMesh)
		{
			cachedMesh = null;
		}
	}

	private void OnRenderObject()
	{
		if (UpdateMode == MegaUpdateMode.OnRender)
		{
			ModifyObjectMT();
		}
	}

	public void GetMesh(bool force)
	{
		if (!(mesh == null) && !(cachedMesh == null) && sverts.Length != 0 && mesh.vertexCount == sverts.Length && !force)
		{
			return;
		}
		if (dynamicMesh)
		{
			cachedMesh = FindMesh(base.gameObject, out sourceObj);
			mesh = cachedMesh;
			if (mesh.vertexCount != 0)
			{
				SetMeshData();
			}
			return;
		}
		cachedMesh = FindMesh(base.gameObject, out sourceObj);
		mesh = MegaCopyObject.DupMesh(cachedMesh, string.Empty);
		SetMesh(base.gameObject, mesh);
		if (mesh.vertexCount != 0)
		{
			SetMeshData();
		}
	}

	private void SetMeshData()
	{
		bbox = cachedMesh.bounds;
		sverts = new Vector3[cachedMesh.vertexCount];
		verts = cachedMesh.vertices;
		uvs = cachedMesh.uv;
		suvs = new Vector2[cachedMesh.uv.Length];
		cols = cachedMesh.colors;
		mods = GetComponents<MegaModifier>();
		Array.Sort(mods, CompareOrder);
		for (int i = 0; i < mods.Length; i++)
		{
			if (mods[i] != null)
			{
				mods[i].SetModMesh(mesh);
				mods[i].ModStart(this);
			}
		}
		mapping = null;
		UpdateMesh = -1;
	}

	public void ModReset(MegaModifier m)
	{
		if (m != null)
		{
			m.SetModMesh(cachedMesh);
			BuildList();
		}
	}

	private void Update()
	{
		GetMesh(false);
		if ((visible || InvisibleUpdate) && UpdateMode == MegaUpdateMode.Update)
		{
			ModifyObjectMT();
		}
	}

	private void LateUpdate()
	{
		if ((visible || InvisibleUpdate) && UpdateMode == MegaUpdateMode.LateUpdate)
		{
			ModifyObjectMT();
		}
	}

	private void OnBecameVisible()
	{
		visible = true;
	}

	private void OnBecameInvisible()
	{
		visible = false;
	}

	[ContextMenu("Reset")]
	public void Reset()
	{
		ResetMeshInfo();
	}

	[ContextMenu("Reset Mesh Info")]
	public void ResetMeshInfo()
	{
		if (mods != null)
		{
			if (mods.Length > 0)
			{
				mesh.vertices = mods[0].verts;
			}
			mesh.uv = uvs;
			if (recalcnorms)
			{
				RecalcNormals();
			}
			if (recalcbounds)
			{
				mesh.RecalculateBounds();
			}
		}
	}

	public void MeshUpdated()
	{
		GetMesh(true);
		MegaModifier[] array = mods;
		foreach (MegaModifier megaModifier in array)
		{
			megaModifier.SetModMesh(cachedMesh);
		}
	}

	public void MeshChanged(Mesh newmesh)
	{
		if (!mesh)
		{
			return;
		}
		mesh.vertices = newmesh.vertices;
		mesh.normals = newmesh.normals;
		mesh.uv = newmesh.uv;
		mesh.uv2 = newmesh.uv2;
		mesh.uv2 = newmesh.uv2;
		mesh.colors = newmesh.colors;
		mesh.tangents = newmesh.tangents;
		mesh.subMeshCount = newmesh.subMeshCount;
		for (int i = 0; i < newmesh.subMeshCount; i++)
		{
			mesh.SetTriangles(newmesh.GetTriangles(i), i);
		}
		bbox = newmesh.bounds;
		sverts = new Vector3[mesh.vertexCount];
		verts = mesh.vertices;
		uvs = mesh.uv;
		suvs = new Vector2[mesh.uv.Length];
		cols = mesh.colors;
		mods = GetComponents<MegaModifier>();
		Array.Sort(mods, CompareOrder);
		MegaModifier[] array = mods;
		foreach (MegaModifier megaModifier in array)
		{
			if (megaModifier != null)
			{
				megaModifier.SetModMesh(newmesh);
				megaModifier.ModStart(this);
			}
		}
		mapping = null;
		UpdateMesh = -1;
	}

	public void SetMesh(GameObject go, Mesh mesh)
	{
		if (!go)
		{
			return;
		}
		Transform[] componentsInChildren = go.GetComponentsInChildren<Transform>(true);
		for (int i = 0; i < componentsInChildren.Length; i++)
		{
			MeshFilter component = componentsInChildren[i].GetComponent<MeshFilter>();
			if ((bool)component)
			{
				component.sharedMesh = mesh;
				break;
			}
			SkinnedMeshRenderer component2 = componentsInChildren[i].GetComponent<SkinnedMeshRenderer>();
			if ((bool)component2)
			{
				component2.sharedMesh = mesh;
				break;
			}
		}
	}

	public static Mesh FindMesh(GameObject go, out GameObject obj)
	{
		if ((bool)go)
		{
			Transform[] componentsInChildren = go.GetComponentsInChildren<Transform>(true);
			for (int i = 0; i < componentsInChildren.Length; i++)
			{
				MeshFilter component = componentsInChildren[i].GetComponent<MeshFilter>();
				if ((bool)component)
				{
					if (component.gameObject != go)
					{
						obj = component.gameObject;
					}
					else
					{
						obj = null;
					}
					return component.sharedMesh;
				}
				SkinnedMeshRenderer component2 = componentsInChildren[i].GetComponent<SkinnedMeshRenderer>();
				if ((bool)component2)
				{
					if (component2.gameObject != go)
					{
						obj = component2.gameObject;
					}
					else
					{
						obj = null;
					}
					return component2.sharedMesh;
				}
			}
		}
		obj = null;
		return null;
	}

	public static bool SetMeshNew(GameObject go, Mesh m)
	{
		if ((bool)go)
		{
			Transform[] componentsInChildren = go.GetComponentsInChildren<Transform>(true);
			for (int i = 0; i < componentsInChildren.Length; i++)
			{
				MeshFilter component = componentsInChildren[i].GetComponent<MeshFilter>();
				if ((bool)component)
				{
					component.sharedMesh = m;
					return true;
				}
				SkinnedMeshRenderer component2 = componentsInChildren[i].GetComponent<SkinnedMeshRenderer>();
				if ((bool)component2)
				{
					component2.sharedMesh = m;
					return true;
				}
			}
		}
		return false;
	}
}