This package has been moved to the JSPrismarine monorepo

@jsprismarine/brigadier

This is a nodejs version of Mojang's Brigadier library. Originally developed by remtori.

Brigadier is a command parser & dispatcher, designed and developed for Minecraft: Java Edition and now freely available for use elsewhere under the MIT license.

Installation

npm install @jsprismarine/brigadier --save

Usage

Dispatch a command

const {
    CommandDispatcher,
    literal,
    argument,
    string,
    Suggestions
} = require('@jsprismarine/brigadier');

class BlockPos {
    constructor(x = 0, y = 0, z = 0) {
        this.x = x;
        this.y = y;
        this.z = z;
    }
    parse(reader) {
        this.x = reader.readInt();
        reader.skip();
        this.y = reader.readInt();
        reader.skip();
        this.z = reader.readInt();
        return this;
    }
    listSuggestions(context, builder) {
        return Suggestions.empty();
    }
    getExamples() {
        return ['1 2 3'];
    }
}

const dispatcher = new CommandDispatcher();

dispatcher.register(
    literal('fill').then(
        argument('pos1', new BlockPos()).then(
            argument('pos2', new BlockPos()).then(
                argument('block', string()).executes((context) => {
                    console.log(context.getArgument('pos1', BlockPos));
                    console.log(context.getArgument('pos2', BlockPos));
                    console.log(context.getArgument('block', /*String*/ 3));
                    return 0;
                })
            )
        )
    )
);

const parsedCommand = dispatcher.parse('fill 3 4 5 10 11 12 air', {});
try {
    dispatcher.execute(parsedCommand);
} catch (ex) {
    console.error(ex.getMessage());
}

// Console
// BlockPos { x: 3, y: 4, z: 5 }
// BlockPos { x: 10, y: 11, z: 12 }
// air