Fix #5: Cull any gamesys links/linkdata with concrete LinkIDs

KeepersCompound.LGS/Database/Chunks/Link.cs

@@ -83,6 +83,22 @@ public class LinkChunk : IChunk, IMergable
 
     public void Merge(IMergable other)
     {
+        // !HACK: We always merge into gamesys so we can pre-trim garbage here
+        var count = links.Count;
+        for (var i = count - 1; i >= 0; i--)
+        {
+            var link = links[i];
+            if (link.linkId.IsConcrete())
+            {
+                links.RemoveAt(i);
+            }
+        }
+        
+        if (links.Count != count)
+        {
+            Console.WriteLine($"Trimmed links: {count} -> {links.Count}");
+        }
+        
         links.AddRange(((LinkChunk)other).links);
     }
 }
@@ -133,6 +149,22 @@ public class LinkDataMetaProp : IChunk, IMergable
 
     public void Merge(IMergable other)
     {
+        // !HACK: We always merge into gamesys so we can pre-trim garbage here
+        var count = linkData.Count;
+        for (var i = count - 1; i >= 0; i--)
+        {
+            var link = linkData[i];
+            if (link.linkId.IsConcrete())
+            {
+                linkData.RemoveAt(i);
+            }
+        }
+
+        if (linkData.Count != count)
+        {
+            Console.WriteLine($"Trimmed link data: {count} -> {linkData.Count}");
+        }
+        
         linkData.AddRange(((LinkDataMetaProp)other).linkData);
     }
 }

KeepersCompound.LGS/ModelFile.cs

@@ -317,7 +317,7 @@ public class ModelFile
             var objTrans = Matrix4x4.Identity;
             if (subObj.Joint != -1)
             {
-                var ang =  float.DegreesToRadians(joints[subObj.Joint]);
+                var ang = subObj.Joint >= joints.Length ? 0 : float.DegreesToRadians(joints[subObj.Joint]);
                 // TODO: Is this correct? Should I use a manual rotation matrix?
                 var jointRot = Matrix4x4.CreateFromYawPitchRoll(0, ang, 0);
                 objTrans = jointRot * subObj.Transform;