//////////////////////////////////////////////
/// 2DxFX - 2D SPRITE FX - by VETASOFT 2018 //
//////////////////////////////////////////////

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

#if UNITY_EDITOR
using UnityEditor;
#endif

[ExecuteInEditMode]
[AddComponentMenu("2DxFX/Standard/SkyCloud")]
[System.Serializable]
public class _2dxFX_SkyCloud : MonoBehaviour
{
    [HideInInspector] public Material ForceMaterial;
    [HideInInspector] public bool ActiveChange = true;
    private string shader = "2DxFX/Standard/SkyCloud";
    [HideInInspector] [Range(0, 1)] public float _Alpha = 1f;

    [HideInInspector] public Texture2D __MainTex2;
    [HideInInspector] public float _OffsetX;
    [HideInInspector] public float _OffsetY;
    [HideInInspector] [Range(0.1f, 2f)] public float _Zoom = 0.2f;
    [HideInInspector] [Range(-1, 1)] public float _Intensity = 0.3f;

    [HideInInspector] public bool _AutoScrollX;
    [HideInInspector] [Range(-2, 2)] public float _AutoScrollSpeedX = 0.08f;
    [HideInInspector] public bool _AutoScrollY;
    [HideInInspector] [Range(-2, 2)] public float _AutoScrollSpeedY = 0.02f;
    [HideInInspector] private float _AutoScrollCountX;
    [HideInInspector] private float _AutoScrollCountY;

    [HideInInspector] public int ShaderChange = 0;
    Material tempMaterial;

    Material defaultMaterial;
    Image CanvasImage;
    SpriteRenderer CanvasSpriteRenderer;[HideInInspector] public bool ActiveUpdate = true;

    void Awake()
    {
        if (this.gameObject.GetComponent<Image>() != null) CanvasImage = this.gameObject.GetComponent<Image>();
        if (this.gameObject.GetComponent<SpriteRenderer>() != null) CanvasSpriteRenderer = this.gameObject.GetComponent<SpriteRenderer>();
    }
    void Start()
    {
        __MainTex2 = Resources.Load("_2dxFX_ShadowTXT") as Texture2D;
        ShaderChange = 0;
        if (CanvasSpriteRenderer != null)
        {
            CanvasSpriteRenderer.sharedMaterial.SetTexture("_MainTex2", __MainTex2);
        }
        else if (CanvasImage != null)
        {
            CanvasImage.material.SetTexture("_MainTex2", __MainTex2);
        }
        XUpdate();
    }

    public void CallUpdate()
    {
        XUpdate();
    }


    void Update()
    {
        if (ActiveUpdate) XUpdate();
    }

    void XUpdate()
    {

        if (CanvasImage == null)
        {
            if (this.gameObject.GetComponent<Image>() != null) CanvasImage = this.gameObject.GetComponent<Image>();
        }
        if (CanvasSpriteRenderer == null)
        {
            if (this.gameObject.GetComponent<SpriteRenderer>() != null) CanvasSpriteRenderer = this.gameObject.GetComponent<SpriteRenderer>();
        }
        if ((ShaderChange == 0) && (ForceMaterial != null))
        {
            ShaderChange = 1;
            if (tempMaterial != null) DestroyImmediate(tempMaterial);
            if (CanvasSpriteRenderer != null)
            {
                CanvasSpriteRenderer.sharedMaterial = ForceMaterial;
            }
            else if (CanvasImage != null)
            {
                CanvasImage.material = ForceMaterial;
            }
            ForceMaterial.hideFlags = HideFlags.None;
            ForceMaterial.shader = Shader.Find(shader);

        }
        if ((ForceMaterial == null) && (ShaderChange == 1))
        {
            if (tempMaterial != null) DestroyImmediate(tempMaterial);
            tempMaterial = new Material(Shader.Find(shader));
            tempMaterial.hideFlags = HideFlags.None;
            if (CanvasSpriteRenderer != null)
            {
                CanvasSpriteRenderer.sharedMaterial = tempMaterial;
            }
            else if (CanvasImage != null)
            {
                CanvasImage.material = tempMaterial;
            }
            ShaderChange = 0;
        }

#if UNITY_EDITOR
        string dfname = "";
        if (CanvasSpriteRenderer != null) dfname = CanvasSpriteRenderer.sharedMaterial.shader.name;
        if (CanvasImage != null)
        {
            Image img = CanvasImage;
            if (img.material == null) dfname = "Sprites/Default";
        }
        if (dfname == "Sprites/Default")
        {
            ForceMaterial.shader = Shader.Find(shader);
            ForceMaterial.hideFlags = HideFlags.None;
            if (CanvasSpriteRenderer != null)
            {
                CanvasSpriteRenderer.sharedMaterial = ForceMaterial;
            }
            else if (CanvasImage != null)
            {
                Image img = CanvasImage;
                if (img.material == null) CanvasImage.material = ForceMaterial;
            }
            __MainTex2 = Resources.Load("_2dxFX_ShadowTXT") as Texture2D;
            if (CanvasSpriteRenderer != null)
            {
                CanvasSpriteRenderer.sharedMaterial.SetTexture("_MainTex2", __MainTex2);
            }
            else if (CanvasImage != null)
            {
                Image img = CanvasImage;
                if (img.material == null) CanvasImage.material.SetTexture("_MainTex2", __MainTex2);
            }

        }
#endif
        if (ActiveChange)
        {
            if (CanvasSpriteRenderer != null)
            {
                CanvasSpriteRenderer.sharedMaterial.SetFloat("_Alpha", 1 - _Alpha);
                CanvasSpriteRenderer.sharedMaterial.SetFloat("_Zoom", _Zoom);
                CanvasSpriteRenderer.sharedMaterial.SetFloat("_Intensity", _Intensity);

                if ((_AutoScrollX == false) && (_AutoScrollY == false))
                {
                    CanvasSpriteRenderer.sharedMaterial.SetFloat("_OffsetX", _OffsetX);
                    CanvasSpriteRenderer.sharedMaterial.SetFloat("_OffsetY", _OffsetY);
                }

                if ((_AutoScrollX == true) && (_AutoScrollY == false))
                {
                    _AutoScrollCountX += _AutoScrollSpeedX * Time.deltaTime;
                    CanvasSpriteRenderer.sharedMaterial.SetFloat("_OffsetX", _AutoScrollCountX);
                    CanvasSpriteRenderer.sharedMaterial.SetFloat("_OffsetY", _OffsetY);
                }
                if ((_AutoScrollX == false) && (_AutoScrollY == true))
                {
                    _AutoScrollCountY += _AutoScrollSpeedY * Time.deltaTime;
                    CanvasSpriteRenderer.sharedMaterial.SetFloat("_OffsetX", _OffsetX);
                    CanvasSpriteRenderer.sharedMaterial.SetFloat("_OffsetY", _AutoScrollCountY);
                }
                if ((_AutoScrollX == true) && (_AutoScrollY == true))
                {
                    _AutoScrollCountX += _AutoScrollSpeedX * Time.deltaTime;
                    CanvasSpriteRenderer.sharedMaterial.SetFloat("_OffsetX", _AutoScrollCountX);
                    _AutoScrollCountY += _AutoScrollSpeedY * Time.deltaTime;
                    CanvasSpriteRenderer.sharedMaterial.SetFloat("_OffsetY", _AutoScrollCountY);
                }
            }

            else if (CanvasImage != null)
            {
                CanvasImage.material.SetFloat("_Alpha", 1 - _Alpha);
                CanvasImage.material.SetFloat("_Zoom", _Zoom);
                CanvasImage.material.SetFloat("_Intensity", _Intensity);

                if ((_AutoScrollX == false) && (_AutoScrollY == false))
                {
                    CanvasImage.material.SetFloat("_OffsetX", _OffsetX);
                    CanvasImage.material.SetFloat("_OffsetY", _OffsetY);
                }

                if ((_AutoScrollX == true) && (_AutoScrollY == false))
                {
                    _AutoScrollCountX += _AutoScrollSpeedX * Time.deltaTime;
                    CanvasImage.material.SetFloat("_OffsetX", _AutoScrollCountX);
                    CanvasImage.material.SetFloat("_OffsetY", _OffsetY);
                }
                if ((_AutoScrollX == false) && (_AutoScrollY == true))
                {
                    _AutoScrollCountY += _AutoScrollSpeedY * Time.deltaTime;
                    CanvasImage.material.SetFloat("_OffsetX", _OffsetX);
                    CanvasImage.material.SetFloat("_OffsetY", _AutoScrollCountY);
                }
                if ((_AutoScrollX == true) && (_AutoScrollY == true))
                {
                    _AutoScrollCountX += _AutoScrollSpeedX * Time.deltaTime;
                    CanvasImage.material.SetFloat("_OffsetX", _AutoScrollCountX);
                    _AutoScrollCountY += _AutoScrollSpeedY * Time.deltaTime;
                    CanvasImage.material.SetFloat("_OffsetY", _AutoScrollCountY);
                }

            }
            if (_AutoScrollCountX > 1) _AutoScrollCountX = 0;
            if (_AutoScrollCountX < -1) _AutoScrollCountX = 0;
            if (_AutoScrollCountY > 1) _AutoScrollCountY = 0;
            if (_AutoScrollCountY < -1) _AutoScrollCountY = 0;


        }


    }

    void OnDestroy()
    {
       
        if ((Application.isPlaying == false) && (Application.isEditor == true))
        {

            if (ForceMaterial != null && tempMaterial != null)
            {
                DestroyImmediate(tempMaterial);
            }

            if (gameObject.activeSelf)
            {
                if (CanvasSpriteRenderer != null)
                {
                    CanvasSpriteRenderer.sharedMaterial = defaultMaterial;
                    CanvasSpriteRenderer.sharedMaterial.hideFlags = HideFlags.None;
                }
                else if (CanvasImage != null)
                {
                    CanvasImage.material = defaultMaterial;
                    CanvasImage.material.hideFlags = HideFlags.None;
                }
            }
        }
    }
    void OnDisable()
    {
       
        if (ForceMaterial != null && tempMaterial != null)
        {
            DestroyImmediate(tempMaterial);
            if (CanvasSpriteRenderer != null)
            {
                CanvasSpriteRenderer.sharedMaterial = defaultMaterial;
                CanvasSpriteRenderer.sharedMaterial.hideFlags = HideFlags.None;
            }
            else if (CanvasImage != null)
            {
                CanvasImage.material = defaultMaterial;
                CanvasImage.material.hideFlags = HideFlags.None;
            }
        }

    }

    void OnEnable()
    {
       

        if (defaultMaterial == null)
        {
            defaultMaterial = new Material(Shader.Find("Sprites/Default"));


        }
        if (ForceMaterial == null)
        {
            ActiveChange = true;
            tempMaterial = new Material(Shader.Find(shader));
            tempMaterial.hideFlags = HideFlags.None;
            if (CanvasSpriteRenderer != null)
            {
                CanvasSpriteRenderer.sharedMaterial = tempMaterial;
            }
            else if (CanvasImage != null)
            {
                CanvasImage.material = tempMaterial;
            }
            __MainTex2 = Resources.Load("_2dxFX_ShadowTXT") as Texture2D;
        }
        else
        {
            ForceMaterial.shader = Shader.Find(shader);
            ForceMaterial.hideFlags = HideFlags.None;
            if (CanvasSpriteRenderer != null)
            {
                CanvasSpriteRenderer.sharedMaterial = ForceMaterial;
            }
            else if (CanvasImage != null)
            {
                CanvasImage.material = ForceMaterial;
            }
            __MainTex2 = Resources.Load("_2dxFX_ShadowTXT") as Texture2D;
        }

        if (__MainTex2)
        {
            __MainTex2.wrapMode = TextureWrapMode.Repeat;
            if (CanvasSpriteRenderer != null)
            {
                CanvasSpriteRenderer.sharedMaterial.SetTexture("_MainTex2", __MainTex2);
            }
            else if (CanvasImage != null)
            {
                CanvasImage.material.SetTexture("_MainTex2", __MainTex2);
            }
        }
    }



}




#if UNITY_EDITOR
[CustomEditor(typeof(_2dxFX_SkyCloud)), CanEditMultipleObjects]
public class _2dxFX_SkyCloud_Editor : Editor
{
    private SerializedObject m_object;

    public void OnEnable()
    {

        m_object = new SerializedObject(targets);
    }

    public override void OnInspectorGUI()
    {
        m_object.Update();
        DrawDefaultInspector();

        _2dxFX_SkyCloud _2dxScript = (_2dxFX_SkyCloud)target;

        Texture2D icon = Resources.Load("2dxfxinspector-anim") as Texture2D;
        if (icon)
        {
            Rect r;
            float ih = icon.height;
            float iw = icon.width;
            float result = ih / iw;
            float w = Screen.width;
            result = result * w;
            r = GUILayoutUtility.GetRect(ih, result);
            EditorGUI.DrawTextureTransparent(r, icon);
        }

        EditorGUILayout.PropertyField(m_object.FindProperty("ActiveUpdate"), new GUIContent("Active Update", "Active Update, for animation / Animator only")); EditorGUILayout.PropertyField(m_object.FindProperty("ForceMaterial"), new GUIContent("Shared Material", "Use a unique material, reduce drastically the use of draw call"));

        if (_2dxScript.ForceMaterial == null)
        {
            _2dxScript.ActiveChange = true;
        }
        else
        {
            if (GUILayout.Button("Remove Shared Material"))
            {
                _2dxScript.ForceMaterial = null;
                _2dxScript.ShaderChange = 1;
                _2dxScript.ActiveChange = true;
                _2dxScript.CallUpdate();
            }

            EditorGUILayout.PropertyField(m_object.FindProperty("ActiveChange"), new GUIContent("Change Material Property", "Change The Material Property"));
        }

        if (_2dxScript.ActiveChange)
        {

            EditorGUILayout.BeginVertical("Box");

            Texture2D icone = Resources.Load("2dxfx-icon-size_x") as Texture2D;
            EditorGUILayout.PropertyField(m_object.FindProperty("_OffsetX"), new GUIContent("Offset X", icone, "Change the start offset of the shadow effect"));

            icone = Resources.Load("2dxfx-icon-size_y") as Texture2D;
            EditorGUILayout.PropertyField(m_object.FindProperty("_OffsetY"), new GUIContent("Offset Y", icone, "Change the start offset of the shadow effect"));

            icone = Resources.Load("2dxfx-icon-size") as Texture2D;
            EditorGUILayout.PropertyField(m_object.FindProperty("_Zoom"), new GUIContent("Zoom", icone, "Zoom the shadow effect"));

            icone = Resources.Load("2dxfx-icon-value") as Texture2D;
            EditorGUILayout.PropertyField(m_object.FindProperty("_Intensity"), new GUIContent("Intensity", icone, "Active the X mouvement of the cloud"));

            icone = Resources.Load("2dxfx-icon-value") as Texture2D;
            EditorGUILayout.PropertyField(m_object.FindProperty("_AutoScrollX"), new GUIContent("Auto Scroll X", icone, "Change the value of the posterize effect"));

            if (_2dxScript._AutoScrollX)
            {
                icone = Resources.Load("2dxfx-icon-time") as Texture2D;
                EditorGUILayout.PropertyField(m_object.FindProperty("_AutoScrollSpeedX"), new GUIContent("Auto Scroll Speed X", icone, "Change the speed of the shadow"));
            }

            icone = Resources.Load("2dxfx-icon-value") as Texture2D;
            EditorGUILayout.PropertyField(m_object.FindProperty("_AutoScrollY"), new GUIContent("Auto Scroll Y", icone, "Active the Y mouvement of the cloud"));

            if (_2dxScript._AutoScrollY)
            {
                icone = Resources.Load("2dxfx-icon-time") as Texture2D;
                EditorGUILayout.PropertyField(m_object.FindProperty("_AutoScrollSpeedY"), new GUIContent("Auto Scroll Speed Y", icone, "Change the speed of the shadow"));
            }

            EditorGUILayout.BeginVertical("Box");

            icone = Resources.Load("2dxfx-icon-fade") as Texture2D;
            EditorGUILayout.PropertyField(m_object.FindProperty("_Alpha"), new GUIContent("Fading", icone, "Fade from nothing to showing"));

            EditorGUILayout.EndVertical();
            EditorGUILayout.EndVertical();


        }

        m_object.ApplyModifiedProperties();

    }
}
#endif