Decouple the usage of PDT evaluator of chart player.

Assets/Cryville/Crtr/ChartPlayer.cs

@@ -60,8 +60,6 @@ namespace Cryville.Crtr {
 		public static float sv = 16f;
 
 		public static Dictionary<Identifier, MotionRegistry> motionRegistry;
-
-		public static PdtEvaluator etor;
 		#endregion
 
 		#region MonoBehaviour
@@ -548,7 +546,7 @@ namespace Cryville.Crtr {
 					effectManager.Dispose();
 					effectManager = null;
 				}
-				etor = null;
+				PdtEvaluator.Instance.Reset();
 				motionRegistry = null;
 				Logger.Log("main", 1, "Game", "Stopped");
 			}
@@ -614,7 +612,7 @@ namespace Cryville.Crtr {
 			};
 
 			using (StreamReader reader = new StreamReader(info.chartFile.FullName, Encoding.UTF8)) {
-				etor = new PdtEvaluator();
+				PdtEvaluator.Instance.Reset();
 
 				LoadRuleset(info.rulesetFile); loadPregress = .05f;
 
@@ -634,7 +632,7 @@ namespace Cryville.Crtr {
 
 				Logger.Log("main", 0, "Load/WorkerThread", "Initializing judge and input"); loadPregress = .35f;
 				judge = new Judge(this, pruleset);
-				etor.ContextJudge = judge;
+				PdtEvaluator.Instance.ContextJudge = judge;
 
 				inputProxy = new InputProxy(pruleset, judge, screenSize);
 				inputProxy.LoadFrom(_rscfg.inputs);
@@ -686,7 +684,7 @@ namespace Cryville.Crtr {
 				if (ruleset.format != Ruleset.CURRENT_FORMAT) throw new FormatException("Invalid ruleset file version");
 				ruleset.LoadPdt(dir);
 				pruleset = ruleset.Root;
-				pruleset.Optimize(etor);
+				pruleset.Optimize(PdtEvaluator.Instance);
 			}
 			RMVPool.Shared = new RMVPool();
 			MotionCachePool.Shared = new MotionCachePool();
@@ -698,7 +696,7 @@ namespace Cryville.Crtr {
 			Logger.Log("main", 0, "Load/WorkerThread", "Loading skin: {0}", file);
 			skin.LoadPdt(dir);
 			pskin = skin.Root;
-			pskin.Optimize(etor);
+			pskin.Optimize(PdtEvaluator.Instance);
 			effectManager = new EffectManager(pskin);
 		}
 		#endregion