[server] Rework ChunkUpdateRequest logic

Nibriboard/Client/Messages/ChunkUpdateRequestMessage.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using Nibriboard.RippleSpace;
 
 namespace Nibriboard.Client.Messages
@@ -10,10 +11,26 @@ namespace Nibriboard.Client.Messages
 		/// A list of chunks that the client has intentionally forgotten about, and will need
 		/// to be resent to the client.
 		/// </summary>
-		public List<dynamic> ForgottenChunks = new List<dynamic>();
+		public List<RawChunkReference> ForgottenChunks = new List<RawChunkReference>();
 
 		public ChunkUpdateRequestMessage()
 		{
 		}
+
+		public List<ChunkReference> ForgottenChunksAsReferences(Plane plane)
+		{
+			List<ChunkReference> result = new List<ChunkReference>();
+			foreach(RawChunkReference rawRef in ForgottenChunks)
+			{
+				if(rawRef.planeName as string != plane.Name)
+					throw new InvalidDataException($"Error: A raw reference was for the plane " +
+					                               "'{rawRef.planeName}', but the plane '{plane.Name}' " +
+					                               "was specified as the plane to lay the chunk references onto!");
+
+				result.Add(new ChunkReference(plane, rawRef.x, rawRef.y));
+			}
+
+			return result;
+		}
 	}
 }

Nibriboard/Client/NibriClient.cs

@@ -354,12 +354,12 @@ namespace Nibriboard.Client
 		/// <param name="message">The message to process.</param>
 		protected async Task handleChunkUpdateRequestMessage(ChunkUpdateRequestMessage message)
 		{
-			chunkCache.Remove(message.ForgottenChunks);
+			chunkCache.Remove(message.ForgottenChunksAsReferences(this.CurrentPlane));
 
 			ChunkUpdateMessage response = new ChunkUpdateMessage();
 			List<ChunkReference> missingChunks = ChunkTools.GetContainingChunkReferences(CurrentPlane, CurrentViewPort);
 			missingChunks = chunkCache.FindMissing(missingChunks);
-
+			
 			response.Chunks = await CurrentPlane.FetchChunks(missingChunks);
 
 			Send(response);

Nibriboard/Nibriboard.csproj

@@ -100,6 +100,7 @@
     <Compile Include="Client\Messages\LineCompleteMessage.cs" />
     <Compile Include="Client\Messages\ErrorMessage.cs" />
     <Compile Include="Client\Messages\PlaneChangeOkMessage.cs" />
+    <Compile Include="Client\RawChunkReference.cs" />
   </ItemGroup>
   <ItemGroup>
     <EmbeddedResource Include="ClientFiles\index.html" />