Add animation stub and effect stub for skin.

Assets/Cryville/Crtr/Skin.cs

@@ -32,8 +32,28 @@ namespace Cryville.Crtr {
 	}
 
 	[Binder(typeof(PdtBinder))]
-	public class PdtSkin : SkinElement {
-		public Dictionary<Identifier, EffectDefinition> effects = new Dictionary<Identifier, EffectDefinition>();
+	public class PdtSkin {
+		public Dictionary<Identifier, AnimationSpan> animations
+			= new Dictionary<Identifier, AnimationSpan>();
+		public Dictionary<Identifier, EffectDefinition> effects
+			= new Dictionary<Identifier, EffectDefinition>();
+		public SkinElement elements;
+
+		public void Optimize(PdtEvaluator etor) {
+			foreach (var animation in animations.Values) {
+				animation.Optimize(etor);
+			}
+			foreach (var effect in effects.Values) {
+				etor.ContextCascadeInsert();
+				if (effect.args != null) foreach (var i in effect.args) {
+					etor.ContextCascadeUpdate(i.Key, PropSrc.Error);
+				}
+				etor.Optimize(effect.duration);
+				effect.elements.Optimize(etor);
+				etor.ContextCascadeDiscard();
+			}
+			elements.Optimize(etor);
+		}
 	}
 
 	public class SkinElement {
@@ -69,9 +89,25 @@ namespace Cryville.Crtr {
 	public class EffectDefinition {
 		public Identifier[] args;
 		public PdtExpression duration;
+		public SkinElement elements;
+	}
 
+	public class AnimationSpan {
 		[ElementList]
-		public Dictionary<SkinSelectors, SkinElement> elements
-			= new Dictionary<SkinSelectors, SkinElement>();
+		public Dictionary<Clip, AnimationSpan> spans
+			= new Dictionary<Clip, AnimationSpan>();
+
+		[PropertyList]
+		public Dictionary<SkinPropertyKey, PdtExpression> properties
+			= new Dictionary<SkinPropertyKey, PdtExpression>();
+
+		public void Optimize(PdtEvaluator etor) {
+			foreach (var p in properties.Values) {
+				etor.Optimize(p);
+			}
+			foreach (var e in spans.Values) {
+				e.Optimize(etor);
+			}
+		}
 	}
 }