How to create commands with localized description in PocketMine plugins?

Question

How to create commands with translated description or usage using the PocketMine API in plugins?

In vanilla commands, strings of translation codes such as %pocketmine.command.help.description are passed. They are references to the lang file in the original PocketMine, and plugins cannot modify them.

When a player executes /help, the HelpCommand class concatenates the result of Command::getDescription() with the help client output format. Then, it is passed to Player::sendMessage, which passes the string to BaseLang::translateString and then BaseLang::parseTranslation, and then internally lookup translations at occurrences of /%[a-zA-Z0-9\.\-]+/. Throughout this process, it is not possible to add anything, unless the server BaseLang is replaced.

score 2 · Accepted Answer · answered Sep 18 '16 at 16:41

Handle DataPacketSendEvent and modify TextPackets. Make your identifier something special that you can extract from arbitrary string.

Use this event handler:

public function e_dps(DataPacketSendEvent $event){
    if(($pk = $event->getPacket()) instanceof TextPacket){
        $pk->message = preg_replace_callback(
            '/PluginName\-SomeRandomBytesHere\-ForSecurityGenerateThemEveryRestart\-([0-9]+)\-AnotherDelimiterHere/', function($match){
                return $this->translate($match[1], $event->getPlayer());
            }, $pk->message);
    }
}

How to create commands with localized description in PocketMine plugins?

1 Answers1