kknongchang_2506/app/Module/GameItems/Logics/ChestContent.php

<?php

namespace App\Module\GameItems\Logics;

use App\Module\GameItems\Models\ItemChestContent;

/**
 * 宝箱内容逻辑类
 */
class ChestContent
{
    /**
     * 判断是否为物品组内容
     *
     * @param ItemChestContent $content 宝箱内容
     * @return bool
     */
    public function isGroupContent(ItemChestContent $content): bool
    {
        return !empty($content->group_id);
    }

    /**
     * 获取随机数量
     *
     * @param ItemChestContent $content 宝箱内容
     * @return int
     */
    public function getRandomQuantity(ItemChestContent $content): int
    {
        if ($content->min_quantity == $content->max_quantity) {
            return $content->min_quantity;
        }

        return mt_rand($content->min_quantity, $content->max_quantity);
    }

    /**
     * 计算调整后的权重（考虑保底机制）
     *
     * @param ItemChestContent $content 宝箱内容
     * @param int $currentPityCount 当前保底计数
     * @return float
     */
    public function getAdjustedWeight(ItemChestContent $content, int $currentPityCount = 0): float
    {
        if (empty($content->pity_count) || $currentPityCount <= 0) {
            return $content->weight;
        }

        // 如果达到保底次数，返回极大值确保必定获得
        if ($currentPityCount >= $content->pity_count) {
            return 999999.999;
        }

        // 计算权重调整因子
        $pityFactor = ($currentPityCount / $content->pity_count) * $content->pity_weight_factor;

        // 返回调整后的权重
        return $content->weight * (1 + $pityFactor);
    }
}