Fix non-existent custom pose breaking scene load

Original method of checking if the pose is custom was to check if the
pose name started with the custom poses path.

This is stupid because a PoseInfo has a bool that says if a pose is
custom or not.

Besides that, the method of checking fails if the user ever decides to
move the game somewhere else.

src/MeidoPhotoStudio.Plugin/Meido/Meido.cs

@@ -214,7 +214,7 @@ public class Meido
             {
                 Body.boEyeToCam = true;
                 Body.boHeadToCam = true;
-                SetPose(CachedPose.Pose);
+                SetPose(CachedPose);
             }
 
             OnUpdateMeido();
@@ -337,16 +337,13 @@ public class Meido
 
     public void SetPose(PoseInfo poseInfo)
     {
-        CachedPose = poseInfo;
-        SetPose(poseInfo.Pose);
-    }
-
-    public void SetPose(string pose)
-    {
         if (!Body.isLoadedBody)
             return;
 
-        if (pose.StartsWith(Constants.CustomPosePath))
+        var pose = poseInfo.Pose;
+        var custom = poseInfo.CustomPose;
+
+        if (custom)
         {
             var poseFilename = Path.GetFileNameWithoutExtension(pose);
 
@@ -359,17 +356,17 @@ public class Meido
             }
             catch (Exception e) when (e is DirectoryNotFoundException or FileNotFoundException)
             {
-                Utility.LogWarning($"{poseFilename}: Could not open because {e.Message}");
+                Utility.LogWarning($"Could not open '{poseFilename}' because {e.Message}");
                 Constants.InitializeCustomPoses();
-                SetPose(PoseInfo.DefaultPose);
+                SetDefaultPose();
                 OnUpdateMeido();
 
                 return;
             }
             catch (Exception e)
             {
-                Utility.LogWarning($"{poseFilename}: Could not apply pose because {e.Message}");
-                SetPose(PoseInfo.DefaultPose);
+                Utility.LogWarning($"Could not apply pose '{poseFilename}' because {e.Message}");
+                SetDefaultPose();
                 OnUpdateMeido();
 
                 return;
@@ -381,22 +378,46 @@ public class Meido
         else
         {
             var poseComponents = pose.Split(',');
+            var poseFilename = poseComponents[0] + ".anm";
 
-            pose = poseComponents[0] + ".anm";
+            var tag = Maid.CrossFade(poseFilename, loop: true, val: 0f);
+
+            if (string.IsNullOrEmpty(tag))
+            {
+                Utility.LogWarning($"Pose could not be loaded: {poseFilename}");
+                SetDefaultPose();
+
+                return;
+            }
 
-            Maid.CrossFade(pose, loop: true, val: 0f);
             Maid.GetAnimation().Play();
 
             if (poseComponents.Length > 1)
             {
-                Maid.GetAnimation()[pose].time = float.Parse(poseComponents[1]);
-                Maid.GetAnimation()[pose].speed = 0f;
+                var animation = Maid.GetAnimation()[poseFilename];
+                var time = float.Parse(poseComponents[1]);
+
+                animation.time = time;
+                animation.speed = 0f;
             }
 
-            SetPoseMune();
+            SetPoseMune(poseFilename);
         }
 
         Maid.SetAutoTwistAll(true);
+
+        CachedPose = poseInfo;
+
+        void SetDefaultPose() =>
+            SetPose(PoseInfo.DefaultPose);
+
+        void SetPoseMune(string pose)
+        {
+            var momiOrPaizuri = pose.Contains("_momi") || pose.Contains("paizuri_");
+
+            SetMune(!momiOrPaizuri, left: true);
+            SetMune(!momiOrPaizuri, left: false);
+        }
     }
 
     public KeyValuePair<bool, bool> SetFrameBinary(byte[] poseBuffer) =>
@@ -861,14 +882,6 @@ public class Meido
             OnUpdateMeido();
     }
 
-    private void SetPoseMune()
-    {
-        var momiOrPaizuri = CachedPose.Pose.Contains("_momi") || CachedPose.Pose.Contains("paizuri_");
-
-        SetMune(!momiOrPaizuri, left: true);
-        SetMune(!momiOrPaizuri, left: false);
-    }
-
     private void BackupBlendSetValues()
     {
         var values = Body.Face.morph.dicBlendSet[CurrentFaceBlendSet];