public function onCommand(CommandSender $sender, Command $command, $alias, array $args)
{
if (!isset($args[0])) {
// if there is no world name given
if (!$sender instanceof Player) {
// if the sender is not a player (not in-game)
return false;
// request a world name by sending usage
}
// There is no need to put else here. It is because if the sender is not a player, the "return false" line already stops the function and this line will not be run.
$level = $player->getLevel();
// store the player's level's value into $level
} else {
$name = $args[0];
// store the world name into $name. $args[0] is the 0th item in the arguments. Arguments are the words after the command, splited (explode()) into an array by whitespaces. A general array's key counts from 0.
$levels = $this->getServer()->getLevels();
// $levels is an array storing all the level objects
foreach ($levels as $cLevel) {
// run the following for each level. I used $cLevel because I can't duplicate the name $level, which will be used later.
if (strtolower($name) === strtolower($level->getName())) {
// if the level's name is case-insensitively equal to $name. The lowercase of two words equal means the two words are case-insensitively equal
$level = $cLevel;
// save the found level
break;
// stop searching. Stopping this could make the server a few microseconds faster maybe. If not stopped, it will continue searching, but we know it won't have new discoveries.
}
}
if (!isset($level)) {
// if nothing is stored into $level i.e. no such level is found
$sender->sendMessage("Level {$name} not found!");
return true;
// don't send the usage
}
}
$names = array();
// initialize an array to prepare a variablr to store the found players in that world (level)
foreach ($this->getServer()->getOnlinePlayers() as $player) {
// for each online player on the server, run this code:
if ($player->getLevel()->getName() === $level->getName()) {
// if player world name equals to level world name; $level is defined above in the two cases (world name given or not), otherwise the function will have already been ended by a line with "return".
$names[] = $player->getName();
// add the player name into the array prepared
}
}
$sender->sendMessage("The following players are in world " . $level->getName() . ":");
$sender->sendMessage(implode(", ", $names));
// combine the names into a string with ", " linking them, and send this string
return true;
}
public function listAllWorld(CommandSender $sender)
{
$out = "The following levels are available:";
$i = 0;
if ($handle = opendir($levelpath = $sender->getServer()->getDataPath() . "worlds/")) {
while (false !== ($entry = readdir($handle))) {
if ($entry[0] != ".") {
$i++;
$out .= "\n " . $i . ">" . $entry . " ";
}
}
closedir($handle);
}
$sender->sendMessage($out);
}
/**
* Chat a message as a given player
*
* @param Player|CommandSender $sender - Entity to impersonate
* @param str[]|str $msg - messages to send
*/
public static function chat($sender, $msgs)
{
if (!is_array($msgs)) {
$msgs = [$msg];
}
foreach ($msgs as $msg) {
$sender->getServer()->getPluginManager()->callEvent($ev = new PlayerChatEvent($sender, $msg));
if ($ev->isCancelled()) {
continue;
}
if (MPMU::apiVersion("1.12.0")) {
$s = $sender->getServer();
$s->broadcastMessage($s->getLanguage()->translateString($ev->getFormat(), [$ev->getPlayer()->getDisplayName(), $ev->getMessage()]), $ev->getRecipients());
} else {
$sender->getServer()->broadcastMessage(sprintf($ev->getFormat(), $ev->getPlayer()->getDisplayName(), $ev->getMessage()), $ev->getRecipients());
}
}
}
public function onCommand(CommandSender $sender, Command $command, $label, array $args)
{
if (strtolower($command->getName()) == "popup") {
if ($sender->hasPermission("joinpopup") || $sender->hasPermission("joinpopup.command")) {
if (isset($args[0]) == "off") {
if (isset($this->playersEnabled[$sender->getName()])) {
unset($this->playersEnabled[$sender->getName()]);
$sender->sendMessage("Popups disabled");
return true;
} else {
$sender->sendMessage("Popups aren't enabled for you");
return true;
}
} elseif ($args[0] == "on") {
if (isset($this->playersEnabled[$sender->getName()])) {
$sender->sendMessage("Popups are already enabled for you");
return true;
} else {
$this->playersEnabled[$sender->getName] = $sender->getName();
$sender->sendMessage("Popups has been enabled for you");
return true;
}
} else {
$sender->sendMessage("Unknown argument: " . $args[0]);
return true;
}
} else {
$sender->sendMessage("You don't have permission to use that command!");
return true;
}
}
}