FakePlayer

What does this plugin do?

Similar to Specter, this plugin spawns players to debug stuff on your server. However, this plugin strictly supports API version 4.0.0.

Usage

Who the heck is BoxierChimera37?
My alt xbox live account.

When you first run this plugin, BoxierChimera37 will join the server. You can edit the players.json file to add as many players as you wish. Does this fake your server player count? Yes, but that's not the point of this plugin.
players.json structure:

{
	"uuid-v4-string": {
		"xuid": "required",
		"gamertag": "required",
		"extra_data": {} // this field is OPTIONAL
		"behaviours": [] // this field is OPTIONAL
	}
}

Once a fake player joins, you can chat or run commands on their behalf using:
/fp <player> chat hello wurld!
/fp <player> chat /help 4

API Documentation

Adding a fake player

Loader::addPlayer(FakePlayerInfo $info) : Promise;

Fake players can be spawned in during runtime using Loader::addPlayer(). FakePlayerInfo consists of player identity and miscellaneous data and can be built easily using FakePlayerInfoBuilder.

/** @var Loader $plugin */
$plugin = Server::getInstance()->getPluginManager()->getPlugin("FakePlayer");
$plugin->addPlayer(FakePlayerInfoBuilder::create()
	->setUsername("BlahCoast30765")
	->setXuid("2535431208141398")
	->setUuid("815e76d4-6248-3c27-9dc5-e49230a5dec4")
	->setSkin(/* some skin */) // optional ;), defaults to a white skin
	// ...
->build());

// To obtain a Player instance after adding a player
$plugin->addPlayer(...)->onCompletion(
	function(Player $player) : void{
		echo "Added player ", $player->getName(), " successfully";
	},
	function() : void{
		// adding player failed
	}
);

Test for fake player

/**
 * @param Player $player
 */
Loader::isFakePlayer(Player $player) : bool;

Removing a fake player

/**
 * NOTE: $player MUST be a fake player, or else an InvalidArgumentException will
 * be thrown.
 * @param Player $player
 */
Loader::removePlayer(Player $player) : void;

Listeners

Registering/Unregistering a fake player listener

Loader::registerListener(FakePlayerListener $listener) : void;
Loader::unregisterListener(FakePlayerListener $listener) : void;

Example:

Loader::registerListener(new ClosureFakePlayerListener(
	function(Player $player) : void{
		Server::getInstance()->broadcastMessage("Fake player joined: " . $player->getName());
	},
	function(Player $player) : void{
		Server::getInstance()->broadcastMessage("Fake player is kil: " . $player->getName());
	}
));

Listening to packets sent

Each fake player holds a FakePlayerNetworkSession that you can register packet listeners to.

/** @var Player $fake_player */
/** @var FakePlayerNetworkSession $session */
$session = $fake_player->getNetworkSession();

There are two kinds of packet listeners you can register:

A catch-all packet listener that is notified for every packet sent.
A specific packet listener

Registering a catch-all packet listener

$session->registerPacketListener(new ClosureFakePlayerPacketListener(
	function(ClientboundPacket $packet, NetworkSession $session) : void{
		// do something
	}
));

Registering a specific packet listener

$session->registerSpecificPacketListener(TextPacket::class, new ClosureFakePlayerPacketListener(
	function(ClientboundPacket $packet, NetworkSession $session) : void{
		/** @var TextPacket $packet */
		Server::getInstance()->broadcastMessage($session->getPlayer()->getName() . " was sent text: " . $packet->message);
	}
));

Fake Player Behaviours

Behaviours are basically a way you can do anything you like on a fake player every tick. By default, there's a fakeplayer:pvp behaviour which makes the fake player fight all living entities except non-survival mode players. You can add multiple behaviours to a fake player. Make sure to register your custom behaviours during PluginBase::onEnable().
To register a fake player behaviour:

FakePlayerBehaviourManager::register("myplugin:cool_ai", MyCoolAIThatImplementsFakePlayerBehaviour::class);

To add a behaviour to a player, pass it during Loader::addPlayer() OR specify it in the players.json file.

Frequently Asked Questions

Q. Does this work with encryption enabled?
A. Yes

Muqsit/FakePlayer