//Update SC
using UnityEngine;
using System.Collections;
[ExecuteInEditMode]
public class T4MObjSC : MonoBehaviour
{
    [HideInInspector]
    public string ConvertType = "";
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    public bool EnabledLODSystem = true;
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    public Vector3[] ObjPosition;
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    public T4MLodObjSC[] ObjLodScript;
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    public int[] ObjLodStatus; //0=Occlude // 1=LOD1 // 2=LOD=2 // 3=LOD3
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    public float MaxViewDistance = 60.0f;
    [HideInInspector]
    public float LOD2Start = 20.0f;
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    public float LOD3Start = 40.0f;
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    public float Interval = 0.5f;
    [HideInInspector]
    public Transform PlayerCamera;
    private Vector3 OldPlayerPos;
    [HideInInspector]
    public int Mode = 1;
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    public int Master;
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    public bool enabledBillboard = true;
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    public Vector3[] BillboardPosition;
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    public float BillInterval = 0.05f;
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    public int[] BillStatus; //0=Occlude // 1=Active
    [HideInInspector]
    public float BillMaxViewDistance = 30.0f;
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    public T4MBillBObjSC[] BillScript;
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    public bool enabledLayerCul = true;
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    public float BackGroundView = 1000f;
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    public float FarView = 200.0f;
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    public float NormalView = 60.0f;
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    public float CloseView = 30.0f;
    float[] distances = new float[32];
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    public int Axis = 0;
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    public bool LODbasedOnScript = true;
    [HideInInspector]
    public bool BilBbasedOnScript = true;

    public Material T4MMaterial;
    public MeshFilter T4MMesh;

    //ATS
    [HideInInspector]
    public Color TranslucencyColor = new Color(0.73f, 0.85f, 0.4f, 1f);
    [HideInInspector]
    public Vector4 Wind = new Vector4(0.85f, 0.075f, 0.4f, 0.5f);
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    public float WindFrequency = 0.75f;
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    public float GrassWindFrequency = 1.5f;
    [HideInInspector]
    public bool ActiveWind = false;

    public bool LayerCullPreview = false;
    public bool LODPreview = false;
    public bool BillboardPreview = false;

    public void Awake()
    {
        if (Master == 1)
        {
            if (PlayerCamera == null && Camera.main)
                PlayerCamera = Camera.main.transform;
            else if (PlayerCamera == null && !Camera.main)
            {
                Camera[] Cam = GameObject.FindObjectsOfType(typeof(Camera)) as Camera[];
                for (var b = 0; b < Cam.Length; b++)
                {
                    if (Cam[b].GetComponent<AudioListener>())
                    {
                        PlayerCamera = Cam[b].transform;
                    }
                }
            }
            if (enabledLayerCul)
            {
                distances[26] = CloseView;
                distances[27] = NormalView;
                distances[28] = FarView;
                distances[29] = BackGroundView;

                if (PlayerCamera != null)
                {
                    PlayerCamera.GetComponent<Camera>().layerCullDistances = distances;
                }
            }

            if (EnabledLODSystem && ObjPosition.Length > 0 && Mode == 1)
            {
                if (ObjLodScript[0].gameObject != null)
                {
                    if (LODbasedOnScript)
                        InvokeRepeating("LODScript", Random.Range(0, Interval), Interval);
                    else InvokeRepeating("LODLay", Random.Range(0, Interval), Interval);
                }
            }
            else if (EnabledLODSystem && ObjPosition.Length > 0 && Mode == 2)
            {
                if (ObjLodScript[0] != null)
                {
                    for (var i = 0; i < ObjPosition.Length; i++)
                    {
                        if (ObjLodScript[i] != null)
                        {
                            if (LODbasedOnScript)
                                ObjLodScript[i].ActivateLODScrpt();
                            else ObjLodScript[i].ActivateLODLay();
                        }
                    }
                }
            }

            if (enabledBillboard && BillboardPosition.Length > 0)
            {
                if (BillScript[0] != null)
                {
                    if (BilBbasedOnScript)
                        InvokeRepeating("BillScrpt", Random.Range(0, BillInterval), BillInterval);
                    else InvokeRepeating("BillLay", Random.Range(0, BillInterval), BillInterval);
                }
            }
        }
    }
    public Texture2D T4MMaskTex2d;
    public Texture2D T4MMaskTexd;
    void OnGUI()
    {
        if (Application.isPlaying == false && Master == 1)
        {
            if (LayerCullPreview && enabledLayerCul)
            {
                GUI.color = Color.green;
                GUI.Label(new Rect(0, 0, 200, 200), "LayerCull Preview ON");
            }
            else
            {
                GUI.color = Color.red;
                GUI.Label(new Rect(0, 0, 200, 200), "LayerCull Preview OFF");
            }
            if (LODPreview && ObjPosition.Length > 0)
            {
                GUI.color = Color.green;
                GUI.Label(new Rect(0, 20, 200, 200), "LOD Preview ON");
            }
            else if (LODPreview && ObjPosition.Length == 0)
            {
                GUI.color = Color.red;
                GUI.Label(new Rect(0, 20, 200, 200), "Activate the LOD First");
            }
            else
            {
                GUI.color = Color.red;
                GUI.Label(new Rect(0, 20, 200, 200), "LOD Preview OFF");
            }
            if (BillboardPreview && BillboardPosition.Length > 0)
            {
                GUI.color = Color.green;
                GUI.Label(new Rect(0, 40, 200, 200), "Billboard Preview ON");
            }
            else if (BillboardPreview && BillboardPosition.Length == 0)
            {
                GUI.color = Color.red;
                GUI.Label(new Rect(0, 40, 200, 200), "Activate the Billboard First");
            }
            else
            {
                GUI.color = Color.red;
                GUI.Label(new Rect(0, 40, 200, 200), "Billboard Preview OFF");
            }
        }
    }
    void LateUpdate()
    {
        if (ActiveWind)
        {
            Color WindRGBA = Wind * ((Mathf.Sin(Time.realtimeSinceStartup * WindFrequency)));
            WindRGBA.a = Wind.w;
            Color GrassWindRGBA = Wind * ((Mathf.Sin(Time.realtimeSinceStartup * GrassWindFrequency)));
            GrassWindRGBA.a = Wind.w;
            Shader.SetGlobalColor("_Wind", WindRGBA);
            Shader.SetGlobalColor("_GrassWind", GrassWindRGBA);
            Shader.SetGlobalColor("_TranslucencyColor", TranslucencyColor);
            Shader.SetGlobalFloat("_TranslucencyViewDependency;", 0.65f);
        }

        if (PlayerCamera && Application.isPlaying == false && Master == 1)
        {
            if (LayerCullPreview && enabledLayerCul)
            {
                distances[26] = CloseView;
                distances[27] = NormalView;
                distances[28] = FarView;
                distances[29] = BackGroundView;
                PlayerCamera.GetComponent<Camera>().layerCullDistances = distances;
            }
            else
            {
                distances[26] = PlayerCamera.GetComponent<Camera>().farClipPlane;
                distances[27] = PlayerCamera.GetComponent<Camera>().farClipPlane;
                distances[28] = PlayerCamera.GetComponent<Camera>().farClipPlane;
                distances[29] = PlayerCamera.GetComponent<Camera>().farClipPlane;
                PlayerCamera.GetComponent<Camera>().layerCullDistances = distances;
            }

            if (LODPreview)
            {
                if (EnabledLODSystem && ObjPosition.Length > 0 && Mode == 1)
                {
                    if (ObjLodScript[0].gameObject != null)
                    {
                        if (LODbasedOnScript)
                            LODScript();
                        else LODLay();
                    }
                }
                else if (EnabledLODSystem && ObjPosition.Length > 0 && Mode == 2)
                {
                    if (ObjLodScript[0] != null)
                    {
                        for (var i = 0; i < ObjPosition.Length; i++)
                        {
                            if (ObjLodScript[i] != null)
                            {
                                if (LODbasedOnScript)
                                    ObjLodScript[i].AFLODScrpt();
                                else ObjLodScript[i].AFLODLay();
                            }
                        }
                    }
                }
            }

            if (BillboardPreview)
            {
                if (enabledBillboard && BillboardPosition.Length > 0)
                {
                    if (BillScript[0] != null)
                    {
                        if (BilBbasedOnScript)
                            BillScrpt();
                        else BillLay();
                    }
                }
            }
        }
    }

    void BillScrpt()
    {
        for (var j = 0; j < BillboardPosition.Length; j++)
        {

            if (Vector3.Distance(BillboardPosition[j], PlayerCamera.position) <= BillMaxViewDistance)
            {
                if (BillStatus[j] != 1)
                {
                    BillScript[j].Render.enabled = true;
                    BillStatus[j] = 1;
                }
                if (Axis == 0)
                    BillScript[j].Transf.LookAt(new Vector3(PlayerCamera.position.x, BillScript[j].Transf.position.y, PlayerCamera.position.z), Vector3.up);
                else
                    BillScript[j].Transf.LookAt(PlayerCamera.position, Vector3.up);

            }
            else if (BillStatus[j] != 0 && !BillScript[j].Render.enabled)
            {
                BillScript[j].Render.enabled = false;
                BillStatus[j] = 0;
            }
        }
    }

    void BillLay()
    {
        for (var j = 0; j < BillboardPosition.Length; j++)
        {
            int Lay = BillScript[j].gameObject.layer;
            if (Vector3.Distance(BillboardPosition[j], PlayerCamera.position) <= distances[Lay])
            {
                if (Axis == 0)
                    BillScript[j].Transf.LookAt(new Vector3(PlayerCamera.position.x, BillScript[j].Transf.position.y, PlayerCamera.position.z), Vector3.up);
                else
                    BillScript[j].Transf.LookAt(PlayerCamera.position, Vector3.up);
            }
        }
    }


    void LODScript()
    {
        if (OldPlayerPos == PlayerCamera.position)
            return;

        OldPlayerPos = PlayerCamera.position;
        for (var i = 0; i < ObjPosition.Length; i++)
        {

            float distanceFromCamera = Vector3.Distance(new Vector3(ObjPosition[i].x, PlayerCamera.position.y, ObjPosition[i].z), PlayerCamera.position);
            if (distanceFromCamera <= MaxViewDistance)
            {
                if (distanceFromCamera < LOD2Start && ObjLodStatus[i] != 1)
                {
                    ObjLodScript[i].LOD2.enabled = ObjLodScript[i].LOD3.enabled = false;
                    ObjLodScript[i].LOD1.enabled = true;
                    ObjLodStatus[i] = 1;
                }
                else if (distanceFromCamera >= LOD2Start && distanceFromCamera < LOD3Start && ObjLodStatus[i] != 2)
                {
                    ObjLodScript[i].LOD1.enabled = ObjLodScript[i].LOD3.enabled = false;
                    ObjLodScript[i].LOD2.enabled = true;
                    ObjLodStatus[i] = 2;
                }
                else if (distanceFromCamera >= LOD3Start && ObjLodStatus[i] != 3)
                {
                    ObjLodScript[i].LOD2.enabled = ObjLodScript[i].LOD1.enabled = false;
                    ObjLodScript[i].LOD3.enabled = true;
                    ObjLodStatus[i] = 3;
                }
            }
            else if (ObjLodStatus[i] != 0)
            {
                ObjLodScript[i].LOD1.enabled = ObjLodScript[i].LOD2.enabled = ObjLodScript[i].LOD3.enabled = false;
                ObjLodStatus[i] = 0;
            }
        }
    }

    void LODLay()
    {
        if (OldPlayerPos == PlayerCamera.position)
            return;

        OldPlayerPos = PlayerCamera.position;

        for (var i = 0; i < ObjPosition.Length; i++)
        {
            float distanceFromCamera = Vector3.Distance(new Vector3(ObjPosition[i].x, PlayerCamera.position.y, ObjPosition[i].z), PlayerCamera.position);

            int Lay2 = ObjLodScript[i].gameObject.layer;
            if (distanceFromCamera <= distances[Lay2] + 5)
            {
                if (distanceFromCamera < LOD2Start && ObjLodStatus[i] != 1)
                {
                    ObjLodScript[i].LOD2.enabled = ObjLodScript[i].LOD3.enabled = false;
                    ObjLodScript[i].LOD1.enabled = true;
                    ObjLodStatus[i] = 1;
                }
                else if (distanceFromCamera >= LOD2Start && distanceFromCamera < LOD3Start && ObjLodStatus[i] != 2)
                {
                    ObjLodScript[i].LOD1.enabled = ObjLodScript[i].LOD3.enabled = false;
                    ObjLodScript[i].LOD2.enabled = true;
                    ObjLodStatus[i] = 2;
                }
                else if (distanceFromCamera >= LOD3Start && ObjLodStatus[i] != 3)
                {
                    ObjLodScript[i].LOD2.enabled = ObjLodScript[i].LOD1.enabled = false;
                    ObjLodScript[i].LOD3.enabled = true;
                    ObjLodStatus[i] = 3;
                }
            }
        }
    }
}