assassin-bug/src/engine/commands/echo.js

export default function EchoCommand(args, context) {
    if (args[1] != "on" && args[1] != "off") {
        context.print(`Usage: echo <on/off>`);
    } else {
        context.setInputEcho(args[1] == "on" ? true : false);
        context.print(`Command echo is now ${args[1]}.`);
    }
}