kknongchang_2506/app/Module/Farm/Events/HouseDowngradedEvent.php

<?php

namespace App\Module\Farm\Events;

use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Queue\SerializesModels;

/**
 * 房屋降级事件
 *
 * 当房屋等级降低时触发此事件
 */
class HouseDowngradedEvent
{
    use Dispatchable, InteractsWithSockets, SerializesModels;

    /**
     * 用户ID
     *
     * @var int
     */
    public $userId;

    /**
     * 旧等级
     *
     * @var int
     */
    public $oldLevel;

    /**
     * 新等级
     *
     * @var int
     */
    public $newLevel;

    /**
     * 创建一个新的事件实例
     *
     * @param int $userId 用户ID
     * @param int $oldLevel 旧等级
     * @param int $newLevel 新等级
     * @return void
     */
    public function __construct(int $userId, int $oldLevel, int $newLevel)
    {
        $this->userId = $userId;
        $this->oldLevel = $oldLevel;
        $this->newLevel = $newLevel;
    }
}