Allow doing gb/lb copy to a non-existent block ID.

Author: UnknownShadow200

fCraft/Commands/CommandReader.cs

@@ -229,8 +229,18 @@ public bool NextBlock([CanBeNull] Player player, bool allowNoneBlock, out Block
             return ParseBlock(blockName, player, allowNoneBlock, ref block);
         }
 
+        public bool NextRawBlock([CanBeNull] Player player, out Block block) {
+            string name = Next();
+            block = Block.None;
+            if (name == null) return false;
+            
+            byte raw;
+            if (byte.TryParse(name, out raw)) { block = (Block)raw; return true; }
+            
+            return ParseBlock(name, player, false, ref block);
+        }       
 
-        bool ParseBlock(string blockName, [CanBeNull] Player player, bool allowNoneBlock, ref Block block) {
+        static bool ParseBlock(string blockName, [CanBeNull] Player player, bool allowNoneBlock, ref Block block) {
             World world = player == null ? null : player.World;
             if (Map.GetBlockByName(world, blockName, true, out block)) {
                 if (block != Block.None || allowNoneBlock) {

fCraft/Commands/CpeCommands.cs

@@ -1659,8 +1659,8 @@ static void CustomBlockDuplicateHandler(Player p, CommandReader cmd, bool global
             string scope = global ? "global" : "level";
             string name = global ? "/gb" : "/lb";
 
-            if (!cmd.NextBlock(p, false, out srcBlock)) return;
-            if (!cmd.NextBlock(p, false, out dstBlock)) return;
+            if (!cmd.NextRawBlock(p, out srcBlock)) return;
+            if (!cmd.NextRawBlock(p, out dstBlock)) return;
             if (dstBlock == Block.Air || dstBlock == Block.None) {
                 p.Message("Destination block cannot have 0 or 255 ID."); return;
             }
@@ -1699,7 +1699,7 @@ static void CustomBlockEditHandler(Player p, CommandReader cmd, bool global, Blo
             string scope = global ? "global" : "level";
             string name = global ? "/gb" : "/lb";
 
-            if (!cmd.NextBlock(p, false, out blockID)) return;
+            if (!cmd.NextRawBlock(p, out blockID)) return;
 
             BlockDefinition def = GetCustomBlock(global, defs, (byte)blockID);
             if (def == null) {