battles/classes/Battles/Magic/CureInjury.php

<?php
# Date: 16.09.2020 (08:23)
// Магия лечения травм
namespace Battles\Magic;
use Battles\UserEffects;
use Battles\User;
use db;
use Krugozor\Database\Mysql\Exception;

class CureInjury extends Magic
{
    private $target;
    use UserEffects;

    /**
     * Магия лечения травм. Если у персонажа несколько травм, лечится самая тяжёлая.
     * @param $target - кого лечим.
     * @param $injuryType - тип травмы, которую лечим. 11 лёгкая, 12 средняя, 13 тяжёлая, 14 неизлечимая.
     * @throws Exception
     */
    public function __construct($target, $injuryType)
    {
        $this->target = $target;
        if ($target && $this->isUsable()) {
            $injury = db::c()->query('SELECT effect_id, type, name FROM users_effects WHERE type IN (11,12,13,14) AND owner_id = ?i ORDER BY type DESC LIMIT 1', $target)->fetch_object();
            $targetName = $this->target->login;
            if (in_array($injury->effect_id, [11, 12, 13, 14]) && $injuryType >= $injury->type) {
                db::c()->query('DELETE FROM users_effects WHERE effect_id = ?i', $injury->effect_id);
                if (empty($injury->name) || $injury->name == 'Неизвестный эффект') {
                    $injuryName = self::$effectName[$injury->type];
                } else {
                    $injuryName = $injury->name;
                }
                return "Вы вылечили повреждение ${injuryName} персонажу ${targetName}.";
            } elseif ($injury->effect_id && $injuryType == 15) {
                db::c()->query('DELETE FROM users_effects WHERE type IN (11,12,13,14) AND owner_id = ?i', $target);
                return "Вы вылечили все повреждения персонажу ${targetName}.";
            } else {
                return false;
            }
        } else {
            return $this->status;
        }
    }

    /**
     * Проверки на успех.
     * @return bool
     */
    private function isUsable()
    {
        $caster = new User($_SESSION['uid']);
        if ($this->target == $_SESSION['uid']) {
            $this->target = $caster;
        } else {
            $this->target = new User($this->target);
        }
        return ($this->isVisible($caster, $this->target) && $this->isNotDead($caster) && $this->enoughMana($caster) && $this->isNotInBattle($caster));
    }
}