Add animation stub and effect stub for skin.

Assets/Cryville/Crtr/SkinInterpreter.cs

@@ -13,9 +13,14 @@ namespace Cryville.Crtr {
 		readonly HashSet<string> a = new HashSet<string>();
 		readonly List<string> k = new List<string>(2);
 		protected override object InterpretKey(Type type) {
-			if (!typeof(SkinElement).IsAssignableFrom(type)) {
+			if (typeof(SkinElement).IsAssignableFrom(type))
+				return InterpretSkinElementKey();
+			else if (typeof(AnimationSpan).IsAssignableFrom(type))
+				return InterpretAnimationSpanKey();
+			else
 				return base.InterpretKey(type);
-			}
+		}
+		object InterpretSkinElementKey() {
 			s.Clear(); a.Clear(); k.Clear();
 			bool invalidKeyFlag = false, compKeyFlag = false;
 			while (true) {
@@ -103,6 +108,59 @@ namespace Cryville.Crtr {
 				if (Position == pp) throw new FormatException("Invalid selector or key format");
 			}
 		}
+		object InterpretAnimationSpanKey() {
+			if ((ct & 0x0040) != 0 || cc == ',') {
+				float start = 0, end = 1;
+				if (cc != ',') {
+					start = float.Parse(GetNumber());
+					ws(); if (cc != ',') throw new FormatException("Invalid span format");
+				}
+				GetChar(); ws();
+				if (cc != '{') end = float.Parse(GetNumber());
+				ws();
+				if (cc != '{') throw new FormatException("Invalid span format");
+				return new Clip(start, end);
+			}
+			k.Clear();
+			while (true) {
+				int pp = Position;
+				switch (cc) {
+					case '.':
+						GetChar();
+						if (k.Count != 1)
+							throw new FormatException("Invalid key format");
+						k.Add(GetIdentifier());
+						break;
+					case ';':
+					case ':':
+						switch (k.Count) {
+							case 1:
+								return new SkinPropertyKey.SetProperty {
+									Component = typeof(TransformInterface),
+									Name = IdentifierManager.SharedInstance.Request(k[0])
+								};
+							case 2:
+								return new SkinPropertyKey.SetProperty {
+									Component = GetComponentByName(k[0]),
+									Name = IdentifierManager.SharedInstance.Request(k[1])
+								};
+							default:
+								throw new FormatException("Unknown error"); // Unreachable
+						}
+					case '{':
+						throw new FormatException("Invalid token");
+					case '}':
+						throw new FormatException("Invalid token");
+					default:
+						if (k.Count != 0)
+							throw new FormatException("Invalid key format");
+						k.Add(GetIdentifier());
+						break;
+				}
+				ws();
+				if (Position == pp) throw new FormatException("Invalid selector or key format");
+			}
+		}
 		static Type GetComponentByName(string name) {
 			Type result;
 			if (GenericResources.Components.TryGetValue(name, out result)) return result;