Argument Types

CommandRegistrar ships with a built-in adapter registry for the following Java types.

Java Type	Brigadier Mapping
`int` / `Integer`	`IntegerArgumentType`
`double` / `Double`	`DoubleArgumentType`
`float` / `Float`	`FloatArgumentType`
`boolean` / `Boolean`	`BoolArgumentType`
`String`	`StringArgumentType`
`UUID`	`UuidArgument`
`ChatFormatting`	`ColorArgument`
`Component`	`ComponentArgument`
`Style`	`StyleArgument`
`CompoundTag`	`CompoundTagArgument`
`NbtPathArgument.NbtPath`	`NbtPathArgument`
`BlockInput`	`BlockStateArgument`
`BlockPos`	`BlockPosArgument`
`ColumnPos`	`ColumnPosArgument`
`Vec2`	`Vec2Argument`
`Vec3`	`Vec3Argument`
`AngleArgument.SingleAngle`	`AngleArgument`
`EntityAnchorArgument.Anchor`	`EntityAnchorArgument`
`Entity`	`EntityArgument.entity()`
`Entity[]`	`EntityArgument.entities()`
`ServerPlayer`	`EntityArgument.player()`
`ServerPlayer[]`	`EntityArgument.players()`
`ServerLevel`	`DimensionArgument`
`GameType`	`GameModeArgument`
`Heightmap.Types`	`HeightmapTypeArgument`
`DisplaySlot`	`ScoreboardSlotArgument`
`ScoreHolder`	`ScoreHolderArgument`
`PlayerTeam`	`TeamArgument`
`SlotRange`	`SlotsArgument`
`Mirror`	`TemplateMirrorArgument`
`Rotation`	`TemplateRotationArgument`

Extending the registry

public class MyCommandInitializer implements SSECInitializer {
    @Override
    public void onInitializeSSEC() {
        CommandRegistrar.registerAdapter(MyType.class, new MyTypeAdapter());
    }

    @Override
    public String[] getPackagesToScan() {
        return new String[] { "com.example.mymod.command" };
    }
}

Use this when your commands need domain-specific value objects that Brigadier does not understand out of the box.