Add state-based effect.

Assets/Cryville/Crtr/EffectGroup.cs

@@ -35,10 +35,14 @@ namespace Cryville.Crtr {
 			while (_endQueue.Count > 0) {
 				var item = _endQueue[0];
 				if (item.EndTime > _time) break;
-				item.OnDone();
+				_endQueue.RemoveAt(0);
+				if (item.OnStateDone()) {
+					QueueInstance(item);
+				}
+				else {
 					_instances.Remove(item.Index);
 					_pool.Return(item);
-				_endQueue.RemoveAt(0);
+				}
 			}
 			foreach (var instance in _instances) {
 				instance.Value.Tick(time);
@@ -46,18 +50,21 @@ namespace Cryville.Crtr {
 		}
 		public void Emit(float index) {
 			EffectInstance instance;
-			if (_instances.TryGetValue(index, out instance)) {
+			bool flag = _instances.TryGetValue(index, out instance);
+			if (!flag) _instances.Add(index, instance = _pool.Rent());
+			instance.Index = index;
+			if (instance.CanEmit()) {
+				if (flag) {
 					var i = _endQueue.BinarySearch(instance);
 					_endQueue.RemoveAt(i);
 				}
-			else {
-				_instances.Add(index, instance = _pool.Rent());
-			}
-			instance.Rewind(_time);
-			instance.Index = index;
 				instance.OnEmit(_time);
-			var i2 = ~_endQueue.BinarySearch(instance);
-			_endQueue.Insert(i2, instance);
+				QueueInstance(instance);
+			}
+		}
+		void QueueInstance(EffectInstance i) {
+			var index = ~_endQueue.BinarySearch(i);
+			_endQueue.Insert(index, i);
 		}
 		public void Dispose() {
 			_pool.DisposeAll();

Assets/Cryville/Crtr/EffectInstance.cs

@@ -1,5 +1,6 @@
 using Cryville.Common;
 using Cryville.Crtr.Components;
+using Cryville.Crtr.Event;
 using System;
 using System.Collections.Generic;
 using System.Globalization;
@@ -25,6 +26,7 @@ namespace Cryville.Crtr {
 			_durationOp = new PropOp.Float(v => _duration = v);
 		}
 		public void Rewind(double time) {
+			_startTime = time;
 			foreach (var i in _comps) i.Rewind(time);
 		}
 		private float m_index;
@@ -36,6 +38,10 @@ namespace Cryville.Crtr {
 				_indexSrc.Invalidate();
 			}
 		}
+		Identifier _currentStateName = Identifier.Empty;
+		EffectState _currentState;
+		ChartEvent _ctxev;
+		ContainerState _ctxstate;
 		internal static readonly int _VAR_EFFECT_INDEX = IdentifierManager.SharedInstance.Request("effect_index");
 		readonly PropSrc _indexSrc;
 		double _startTime;
@@ -45,17 +51,47 @@ namespace Cryville.Crtr {
 		public void Tick(double time) {
 			foreach (var i in _comps) i.Tick(_skinContainer, time);
 		}
+		public bool CanEmit() {
+			return _currentStateName.Key == 0 || _currentState.rewind.Key != 0;
+		}
 		public void OnEmit(double time) {
-			_startTime = time;
+			_ctxev = ChartPlayer.etor.ContextEvent;
+			_ctxstate = ChartPlayer.etor.ContextState;
+			if (_currentStateName.Key == 0) {
+				EnterState(_def.init, time, true);
+			}
+			else {
+				if (_currentState.rewind.Key == 0) throw new InvalidOperationException("Cannot rewind");
+				EnterState(_currentState.rewind, time, true);
+			}
+		}
+		void EnterState(Identifier name, double time, bool emitting) {
+			_currentStateName = name;
+			_currentState = _def.states[name];
+			Rewind(time);
 			RootTransform.gameObject.SetActive(true);
 			ChartPlayer.etor.ContextCascadeInsert();
 			ChartPlayer.etor.ContextCascadeUpdate(_VAR_EFFECT_INDEX, _indexSrc);
-			ChartPlayer.etor.Evaluate(_durationOp, _def.duration);
-			_skinContainer.MatchDynamic(0);
+			ChartPlayer.etor.Evaluate(_durationOp, _currentState.duration);
+			if (emitting) _skinContainer.MatchDynamic(0);
+			_skinContainer.MatchDynamic(1);
 			ChartPlayer.etor.ContextCascadeDiscard();
 		}
-		public void OnDone() {
+		public bool OnStateDone() {
+			if (_currentState.next.Key == 0) {
 				RootTransform.gameObject.SetActive(false);
+				_currentStateName = Identifier.Empty;
+				_currentState = null;
+				return false;
+			}
+			else {
+				ChartPlayer.etor.ContextEvent = _ctxev;
+				ChartPlayer.etor.ContextState = _ctxstate;
+				EnterState(_currentState.next, EndTime, false);
+				ChartPlayer.etor.ContextEvent = null;
+				ChartPlayer.etor.ContextState = null;
+				return true;
+			}
 		}
 		public void Dispose() {
 			GameObject.Destroy(RootTransform.gameObject);
@@ -63,7 +99,7 @@ namespace Cryville.Crtr {
 
 		public string TypeName { get { throw new InvalidOperationException("Type name undefined"); } }
 		public SkinContext SkinContext { get; private set; }
-		public int OpenedAnchorName { get { throw new InvalidOperationException("Anchor not supported"); } }
+		public int OpenedAnchorName { get { return _currentStateName.Key; } }
 		public void PushAnchorEvent(double time, int name) {
 			throw new InvalidOperationException("Anchor not supported");
 		}

Assets/Cryville/Crtr/PdtEvaluator.cs

@@ -101,11 +101,11 @@ namespace Cryville.Crtr {
 			else throw new KeyNotFoundException(string.Format("Undefined collapse operator {0}", IdentifierManager.SharedInstance.Retrieve(name)));
 		}
 
-		public ChartEvent ContextEvent { private get; set; }
-		public ContainerState ContextState { private get; set; }
-		public Transform ContextTransform { private get; set; }
-		public Judge ContextJudge { private get; set; }
-		public PropSrc ContextSelfValue { private get; set; }
+		public ChartEvent ContextEvent { get; set; }
+		public ContainerState ContextState { get; set; }
+		public Transform ContextTransform { get; set; }
+		public Judge ContextJudge { get; set; }
+		public PropSrc ContextSelfValue { get; set; }
 
 		readonly Stack<int> ContextCascadeBlocks = new Stack<int>();
 		public void ContextCascadeInsertBlock() {

Assets/Cryville/Crtr/Skin.cs

@@ -60,7 +60,9 @@ namespace Cryville.Crtr {
 				var effect = e.Value;
 				etor.ContextCascadeInsert();
 				etor.ContextCascadeUpdate(EffectInstance._VAR_EFFECT_INDEX, PropSrc.Error);
-				etor.Optimize(effect.duration);
+				foreach(var s in effect.states) {
+					etor.Optimize(s.Value.duration);
+				}
 				effect.elements.Optimize(etor);
 				etor.ContextCascadeDiscard();
 			}
@@ -99,10 +101,30 @@ namespace Cryville.Crtr {
 	}
 
 	public class EffectDefinition {
-		public PdtExpression duration;
+		static Identifier _ident_init = new Identifier("init");
+#pragma warning disable IDE1006
+		public PdtExpression duration {
+			set {
+				EffectState s;
+				if (!states.TryGetValue(_ident_init, out s))
+					throw new InvalidOperationException("Cannot set duration and states at the same time");
+				s.duration = value;
+			}
+		}
+#pragma warning restore IDE1006
+		public Identifier init = _ident_init;
+		public Dictionary<Identifier, EffectState> states = new Dictionary<Identifier, EffectState> {
+			{ _ident_init, new EffectState() { rewind = _ident_init } }
+		};
 		public SkinElement elements;
 	}
 
+	public class EffectState {
+		public PdtExpression duration;
+		public Identifier rewind;
+		public Identifier next;
+	}
+
 	public class AnimationSpan {
 		[ElementList]
 		public Dictionary<Clip, AnimationSpan> spans