Find block when group is unknown

GamecraftModdingAPI/Block.cs

@@ -135,8 +135,14 @@ namespace GamecraftModdingAPI
 			Id = id;
 		}
 
-		public Block(uint id) : this(new EGID(id, CommonExclusiveGroups.BUILD_STANDARD_BLOCK_GROUP))
-		{ //TODO: Figure out the block group based on the id
+		/// <summary>
+		/// This overload searches for the correct group the block is in.
+		/// It will throw an exception if the block doesn't exist.
+		/// Use the EGID constructor where possible or subclasses of Block as those specify the group.
+		/// </summary>
+		public Block(uint id)
+		{
+			Id = BlockEngine.FindBlockEGID(id) ?? throw new BlockTypeException("Could not find the appropriate group for the block. The block probably doesn't exist or hasn't been submitted.");
 		}
 
 		public EGID Id { get; }

GamecraftModdingAPI/Blocks/BlockEngine.cs

@@ -171,6 +171,18 @@ namespace GamecraftModdingAPI.Blocks
 			return list.ToArray();
 		}
 
+		public EGID? FindBlockEGID(uint id)
+		{
+			var groups = entitiesDB.FindGroups<DBEntityStruct>();
+			foreach (ExclusiveGroupStruct group in groups)
+			{
+				if (entitiesDB.Exists<DBEntityStruct>(id, group))
+					return new EGID(id, group);
+			}
+
+			return null;
+		}
+
 		/// <summary>
 		/// Synchronize newly created entity components with entities DB.
 		/// This forces a partial game tick, so it may be slow.