using UnityEngine;
using System;


public static class MaterialUtility
{

    public static Material GetDefaultSpriteGrayMaterial()
    {
        return BuiltInLoader.LoadMaterial("SpriteGray");
    }

    public static Material GetInstantiatedSpriteGrayMaterial()
    {
        var material = new Material(GetDefaultSpriteGrayMaterial());
        return material;
    }

    public static Material GetSmoothMaskGrayMaterial()
    {
        return BuiltInLoader.LoadMaterial("SmoothMaskGray");
    }

    public static Material GetInstantiatedSpriteTwinkleMaterial()
    {
        var material = BuiltInLoader.LoadMaterial("Flash");
        return new Material(material);
    }

    public static Material GetUIDefaultGraphicMaterial()
    {
        return UnityEngine.UI.Image.defaultGraphicMaterial;
    }

    public static Material GetUIBlurMaterial()
    {
        return BuiltInLoader.LoadMaterial("GUIBlurMaterial");
    }

    public static Material GetGUIRenderTextureMaterial()
    {
        return BuiltInLoader.LoadMaterial("UI_RenderTexture");
    }

    public static void SetRenderSortingOrder(this GameObject root, int sortingOrder, bool includeChildren)
    {

        if (root == null)
        {
            throw new NullReferenceException();
        }

        if (includeChildren)
        {
            var renderers = root.GetComponentsInChildren<Renderer>();
            for (var i = 0; i < renderers.Length; i++)
            {
                var renderer = renderers[i];
                renderer.sortingOrder = sortingOrder;
            }
        }
        else
        {
            var renderer = root.GetComponent<Renderer>();
            if (renderer != null)
            {
                renderer.sortingOrder = sortingOrder;
            }
        }

    }


    public static Material m_HudMaterial;
    public static Material hudMaterial {
        get {
            if (m_HudMaterial == null)
            {
                m_HudMaterial = BuiltInLoader.LoadMaterial("HUD_HeadupName");
                m_HudMaterial.SetTexture("_Tex1", FontUtility.preferred.material.mainTexture);
            }
            return m_HudMaterial;
        }
    }


    static Shader m_HeroShader;
    static Shader m_PlayerShader;
    static Shader heroShader {
        get {
            if (m_HeroShader == null)
            {
                m_HeroShader = Shader.Find("Character/Character,Emission,Flow_Hero");
            }

            if (m_HeroShader == null)
            {
                m_HeroShader = Shader.Find("Character/Character, Emission,Flow_Hero");
            }

            return m_HeroShader;
        }
    }

    static Shader playerShader {
        get {
            if (m_PlayerShader == null)
            {
                m_PlayerShader = Shader.Find("Character/Character,Emission,Flow");
            }

            if (m_PlayerShader == null)
            {
                m_PlayerShader = Shader.Find("Character/Character, Emission,Flow");
            }

            return m_PlayerShader;
        }
    }

    public static void SwitchXrayShader(Material _material, bool _isHero)
    {
        if (_material == null)
        {
            return;
        }

        if (_isHero)
        {
            if (_material.shader.name != "Character/Character,Emission,Flow_Hero" && _material.shader.name != "Character/Character, Emission,Flow_Hero")
            {
                _material.shader = heroShader;
                _material.SetColor("_XRayColor", new Color32(0, 107, 255, 255));
            }
        }
        else
        {
            if (_material.shader.name != "Character/Character, Emission,Flow" && _material.shader.name != "Character/Character,Emission,Flow")
            {
                _material.shader = playerShader;
            }
        }
    }

}