pocketmine\command\defaults\EffectCommand::execute PHP Метод

    public function execute(CommandSender $sender, $currentAlias, array $args)
    {
        if (!$this->testPermission($sender)) {
            return true;
        }
        if (count($args) < 2) {
            $sender->sendMessage(new TranslationContainer("commands.generic.usage", [$this->usageMessage]));
            return true;
        }
        $player = $sender->getServer()->getPlayer($args[0]);
        if ($player === null) {
            $sender->sendMessage(new TranslationContainer(TextFormat::RED . "%commands.generic.player.notFound"));
            return true;
        }
        if ($player->getName() != $sender->getName() && !$sender->hasPermission("pocketmine.command.effect.other")) {
            $sender->sendMessage("You don't have permission to give effect to other player .");
            return true;
        }
        if (strtolower($args[1]) === "clear") {
            foreach ($player->getEffects() as $effect) {
                $player->removeEffect($effect->getId());
            }
            $sender->sendMessage(new TranslationContainer("commands.effect.success.removed.all", [$player->getDisplayName()]));
            return true;
        }
        $effect = Effect::getEffectByName($args[1]);
        if ($effect === null) {
            $effect = Effect::getEffect((int) $args[1]);
        }
        if ($effect === null) {
            $sender->sendMessage(new TranslationContainer(TextFormat::RED . "%commands.effect.notFound", [(string) $args[1]]));
            return true;
        }
        $duration = 300;
        $amplification = 0;
        if (count($args) >= 3) {
            $duration = (int) $args[2];
            if (!$effect instanceof InstantEffect) {
                $duration *= 20;
            }
        } elseif ($effect instanceof InstantEffect) {
            $duration = 1;
        }
        if (count($args) >= 4) {
            $amplification = (int) $args[3];
        }
        if (count($args) >= 5) {
            $v = strtolower($args[4]);
            if ($v === "on" or $v === "true" or $v === "t" or $v === "1") {
                $effect->setVisible(false);
            }
        }
        if ($duration === 0) {
            if (!$player->hasEffect($effect->getId())) {
                if (count($player->getEffects()) === 0) {
                    $sender->sendMessage(new TranslationContainer("commands.effect.failure.notActive.all", [$player->getDisplayName()]));
                } else {
                    $sender->sendMessage(new TranslationContainer("commands.effect.failure.notActive", [$effect->getName(), $player->getDisplayName()]));
                }
                return true;
            }
            if ($player->removeEffect($effect->getId())) {
                $sender->sendMessage(new TranslationContainer("commands.effect.success.removed", [$effect->getName(), $player->getDisplayName()]));
            }
        } else {
            $effect->setDuration($duration)->setAmplifier($amplification);
            if ($player->addEffect($effect)) {
                self::broadcastCommandMessage($sender, new TranslationContainer("%commands.effect.success", [$effect->getName(), $effect->getId(), $effect->getAmplifier(), $player->getDisplayName(), $effect->getDuration() / 20]));
            }
        }
        return true;
    }