add auto-generation MetaColor from MetaGroup

src/DebugUtils/MetaAttributes/MetaColorAttribute.cs

@@ -232,16 +232,17 @@ namespace DCFApixels.DragonECS
         {
             this.colorCode = withoutAlpha ? colorCode | 255 : colorCode;
         }
-        public MetaColor(string stringCode) : this()
+        public static MetaColor FromHashCode(int hash)
+        {
+            return FromHashCode(hash, false);
+        }
+        public static MetaColor FromHashCode(int hash, bool withoutAlpha)
         {
             unchecked
             {
-                const uint MAGIC_CONST = 0xA638_783E;
+                uint colorCode = (uint)hash;
-                uint colorCode = (uint)stringCode.GetHashCode();
-                colorCode ^= MAGIC_CONST;
                 colorCode = BitsUtility.NextXorShiftState(colorCode);
-                this.colorCode = (uint)colorCode | 255;
+                return new MetaColor(colorCode, withoutAlpha);
-                this.colorCode = UpContrast().colorCode;
             }
         }
         #endregion

src/DebugUtils/MetaAttributes/MetaGroupAttribute.cs

@@ -6,8 +6,6 @@ using System.Text.RegularExpressions;
 
 namespace DCFApixels.DragonECS
 {
-    using static MetaGroupAttribute;
-
     [AttributeUsage(AttributeTargets.Struct | AttributeTargets.Class | AttributeTargets.Interface, Inherited = false, AllowMultiple = false)]
     public sealed class MetaGroupAttribute : EcsMetaAttribute
     {
@@ -22,6 +20,7 @@ namespace DCFApixels.DragonECS
     [DebuggerDisplay("{Name}")]
     public class MetaGroup
     {
+        public const char SEPARATOR = MetaGroupAttribute.SEPARATOR;
         public const string UNGROUPED = "<UNGROUPED>";
         private const string PATTERN = @"Module(?=/)";
         public static readonly MetaGroup Empty = new MetaGroup(UNGROUPED);
@@ -39,6 +38,10 @@ namespace DCFApixels.DragonECS
                 return _path;
             }
         }
+        public bool IsEmpty
+        {
+            get { return this == Empty; }
+        }
         public MetaGroup(string name)
         {
             if (string.IsNullOrEmpty(name))

src/DebugUtils/TypeMeta.cs

@@ -153,7 +153,7 @@ namespace DCFApixels.DragonECS
         {
             if (_initFlags.HasFlag(InitFlag.Color) == false)
             {
-                (_color, _isCustomColor) = MetaGenerator.GetColor(_type);
+                (_color, _isCustomColor) = MetaGenerator.GetColor(this);
                 _initFlags |= InitFlag.Color;
             }
         }
@@ -406,15 +406,6 @@ namespace DCFApixels.DragonECS
         {
             private const int GENERIC_NAME_DEPTH = 3;
 
-            //private static HashSet<Type> _;
-
-            //#region GetMemberType
-            //public static EcsMemberType GetMemberType(Type type)
-            //{
-            //    throw new NotImplementedException();
-            //}
-            //#endregion
-
             #region GetMetaName/GetTypeName
             public static string GetTypeName(Type type)
             {
@@ -448,15 +439,25 @@ namespace DCFApixels.DragonECS
             #endregion
 
             #region GetColor
-            private static MetaColor AutoColor(Type type)
+
+            private static MetaColor AutoColor(TypeMeta meta)
             {
-                return new MetaColor(type.Name).UpContrast();//.Desaturate(0.48f) / 1.18f;
+                int hash;
+                if (meta.Group.IsEmpty)
+                {
+                    hash = meta.Type.Name.GetHashCode();
+                }
+                else
+                {
+                    hash = meta.Group.Name.GetHashCode();
+                }
+                return MetaColor.FromHashCode(hash).UpContrast();
             }
-            public static (MetaColor, bool) GetColor(Type type)
+            public static (MetaColor, bool) GetColor(TypeMeta meta)
             {
 #if (DEBUG && !DISABLE_DEBUG) || !REFLECTION_DISABLED //в дебажных утилитах REFLECTION_DISABLED только в релизном билде работает
-                bool isCustom = type.TryGetAttribute(out MetaColorAttribute atr);
+                bool isCustom = meta.Type.TryGetAttribute(out MetaColorAttribute atr);
-                return (isCustom ? atr.color : AutoColor(type), isCustom);
+                return (isCustom ? atr.color : AutoColor(meta), isCustom);
 #else
                 EcsDebug.PrintWarning($"Reflection is not available, the {nameof(MetaGenerator)}.{nameof(GetColor)} method does not work.");
                 return (AutoColor(type), false);