EffectCommand.php

<?php
 
/*
 *
 *  ____            _        _   __  __ _                  __  __ ____
 * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
 * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
 * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
 * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * @author PocketMine Team
 * @link http://www.pocketmine.net/
 *
 *
 */
 
declare(strict_types=1);
 
namespace pocketmine\command\defaults;
 
use pocketmine\command\CommandSender;
use pocketmine\command\utils\InvalidCommandSyntaxException;
use pocketmine\entity\effect\EffectInstance;
use pocketmine\entity\effect\StringToEffectParser;
use pocketmine\lang\KnownTranslationFactory;
use pocketmine\permission\DefaultPermissionNames;
use pocketmine\utils\Limits;
use pocketmine\utils\TextFormat;
use function count;
use function strtolower;
 
class EffectCommand extends VanillaCommand{
 
    public function __construct(string $namespace, string $name){
        parent::__construct(
            $namespace,
            $name,
            KnownTranslationFactory::pocketmine_command_effect_description(),
            KnownTranslationFactory::commands_effect_usage()
        );
        $this->setPermissions([
            DefaultPermissionNames::COMMAND_EFFECT_SELF,
            DefaultPermissionNames::COMMAND_EFFECT_OTHER
        ]);
    }
 
    public function execute(CommandSender $sender, string $commandLabel, array $args){
        if(count($args) < 2){
            throw new InvalidCommandSyntaxException();
        }
 
        $player = $this->fetchPermittedPlayerTarget($commandLabel, $sender, $args[0], DefaultPermissionNames::COMMAND_EFFECT_SELF, DefaultPermissionNames::COMMAND_EFFECT_OTHER);
        if($player === null){
            return true;
        }
        $effectManager = $player->getEffects();
 
        if(strtolower($args[1]) === "clear"){
            $effectManager->clear();
 
            $sender->sendMessage(KnownTranslationFactory::commands_effect_success_removed_all($player->getDisplayName()));
            return true;
        }
 
        $effect = StringToEffectParser::getInstance()->parse($args[1]);
        if($effect === null){
            $sender->sendMessage(KnownTranslationFactory::commands_effect_notFound($args[1])->prefix(TextFormat::RED));
            return true;
        }
 
        $amplification = 0;
 
        if(count($args) >= 3){
            if(($d = $this->getBoundedInt($sender, $args[2], 0, (int) (Limits::INT32_MAX / 20))) === null){
                return false;
            }
            $duration = $d * 20; //ticks
        }else{
            $duration = null;
        }
 
        if(count($args) >= 4){
            $amplification = $this->getBoundedInt($sender, $args[3], 0, 255);
            if($amplification === null){
                return false;
            }
        }
 
        $visible = true;
        if(count($args) >= 5){
            $v = strtolower($args[4]);
            if($v === "on" || $v === "true" || $v === "t" || $v === "1"){
                $visible = false;
            }
        }
 
        if($duration === 0){
            if(!$effectManager->has($effect)){
                if(count($effectManager->all()) === 0){
                    $sender->sendMessage(KnownTranslationFactory::commands_effect_failure_notActive_all($player->getDisplayName()));
                }else{
                    $sender->sendMessage(KnownTranslationFactory::commands_effect_failure_notActive($effect->getName(), $player->getDisplayName()));
                }
                return true;
            }
 
            $effectManager->remove($effect);
            $sender->sendMessage(KnownTranslationFactory::commands_effect_success_removed($effect->getName(), $player->getDisplayName()));
        }else{
            $instance = new EffectInstance($effect, $duration, $amplification, $visible);
            $effectManager->add($instance);
            self::broadcastCommandMessage($sender, KnownTranslationFactory::commands_effect_success($effect->getName(), (string) $instance->getAmplifier(), $player->getDisplayName(), (string) ($instance->getDuration() / 20)));
        }
 
        return true;
    }
}