added support for block predicate argument support and tag_matches function. Fixes #563

src/main/java/carpet/script/command/CommandArgument.java

@@ -36,6 +36,7 @@ import net.minecraft.advancement.Advancement;
 import net.minecraft.command.CommandSource;
 import net.minecraft.command.argument.AngleArgumentType;
 import net.minecraft.command.argument.BlockPosArgumentType;
+import net.minecraft.command.argument.BlockPredicateArgumentType;
 import net.minecraft.command.argument.BlockStateArgument;
 import net.minecraft.command.argument.BlockStateArgumentType;
 import net.minecraft.command.argument.ColorArgumentType;
@@ -126,6 +127,9 @@ public abstract class CommandArgument
                     },
                     false
             ),
+            new VanillaUnconfigurableArgument( "blockpredicate", BlockPredicateArgumentType::blockPredicate,
+                    (c, p) -> ValueConversions.ofBlockPredicate(c.getSource().getMinecraftServer().getTagManager(), BlockPredicateArgumentType.getBlockPredicate(c, p)), false
+            ),
             // block_predicate todo - not sure about the returned format. Needs to match block tags used in the API (future)
             new VanillaUnconfigurableArgument("teamcolor", ColorArgumentType::color,
                     (c, p) -> {