Code structure cleanup.

Assets/Cryville/Crtr/Skin/EffectManager.cs

@@ -0,0 +1,33 @@
+using Cryville.Common;
+using Cryville.Common.Collections.Specialized;
+using System;
+using UnityEngine;
+
+namespace Cryville.Crtr.Skin {
+	public class EffectManager {
+		readonly IntKeyedDictionary<EffectGroup> _groups
+			= new IntKeyedDictionary<EffectGroup>();
+		public EffectManager(PdtSkin skin) {
+			foreach (var e in skin.effects) {
+				_groups.Add(e.Key.Key, new EffectGroup(e.Value));
+			}
+		}
+		public void Tick(double time) {
+			foreach (var g in _groups) g.Value.Tick(time);
+		}
+		public void Emit(int id, float index) {
+			GetGroup(id).Emit(index);
+		}
+		public void EmitSelf(int id, float index, Transform target) {
+			GetGroup(id).Emit(index, target);
+		}
+		EffectGroup GetGroup(int id) {
+			EffectGroup result;
+			if (_groups.TryGetValue(id, out result)) return result;
+			throw new ArgumentException(string.Format("The effect \"{0}\" is not found", IdentifierManager.Shared.Retrieve(id)));
+		}
+		public void Dispose() {
+			foreach (var g in _groups) g.Value.Dispose();
+		}
+	}
+}