[色子游戏]奖励配置权重测试记录
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@@ -6,10 +6,12 @@
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// +----------------------------------------------------------------------
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namespace app\dice\logic\reward_config;
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use app\dice\model\lottery_pool_config\DiceLotteryPoolConfig;
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use app\dice\model\reward_config\DiceRewardConfig;
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use app\dice\model\reward_config\DiceRewardConfigRecord;
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use plugin\saiadmin\basic\think\BaseLogic;
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use plugin\saiadmin\exception\ApiException;
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use plugin\saiadmin\utils\Helper;
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use app\dice\model\reward_config\DiceRewardConfig;
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use support\Log;
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/**
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@@ -135,4 +137,160 @@ class DiceRewardConfigLogic extends BaseLogic
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}
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DiceRewardConfig::refreshCache();
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}
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/** 测试时档位权重均为 0 的异常标识 */
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private const EXCEPTION_WEIGHT_ALL_ZERO = 'REWARD_WEIGHT_ALL_ZERO';
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/**
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* 按权重抽取一条配置（与 PlayStartLogic 抽奖逻辑一致，仅 weight>0 参与）
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*/
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private static function drawRewardByWeight(array $rewards): array
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{
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if (empty($rewards)) {
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throw new \InvalidArgumentException('rewards 不能为空');
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}
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$candidateWeights = [];
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foreach ($rewards as $i => $row) {
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$w = isset($row['weight']) ? (float) $row['weight'] : 0.0;
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if ($w > 0) {
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$candidateWeights[$i] = $w;
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}
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}
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$total = (float) array_sum($candidateWeights);
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if ($total > 0) {
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$r = (random_int(0, PHP_INT_MAX - 1) / (float) PHP_INT_MAX) * $total;
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$acc = 0.0;
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foreach ($candidateWeights as $i => $w) {
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$acc += $w;
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if ($r < $acc) {
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return $rewards[$i];
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}
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}
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return $rewards[array_key_last($candidateWeights)];
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}
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throw new \RuntimeException(self::EXCEPTION_WEIGHT_ALL_ZERO);
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}
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/**
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* 按档位权重数组抽取 T1-T5
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*/
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private static function drawTierByWeightArray(array $tiers, array $weights): string
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{
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$total = array_sum($weights);
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if ($total <= 0) {
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return $tiers[random_int(0, count($tiers) - 1)];
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}
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$r = random_int(1, (int) $total);
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$acc = 0;
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foreach ($weights as $i => $w) {
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$acc += (int) $w;
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if ($r <= $acc) {
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return $tiers[$i];
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}
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}
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return $tiers[count($tiers) - 1];
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}
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/**
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* 运行权重配比测试：仅按当前配置在内存中模拟 N 次抽奖，统计各 grid_number 落点数量。
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* 不创建任何游玩记录（DicePlayRecord）、不扣券、不写钱包，仅用于验证权重配比效果。
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*
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* @param int $testCount 测试次数 100/500/1000/5000/10000
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* @param bool $saveRecord 是否保存到 dice_reward_config_record（测试记录表，非游玩记录）
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* @param int|null $adminId 执行人管理员ID
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* @param int|null $lotteryConfigId 奖池配置ID（DiceLotteryPoolConfig），用于设定 T1-T5 档位概率；不传则使用 type=0 的配置或均等
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* @return array{counts: array<int,int>, record_id: int|null} counts 为 grid_number=>出现次数
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*/
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public function runWeightTest(int $testCount, bool $saveRecord = true, ?int $adminId = null, ?int $lotteryConfigId = null): array
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{
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$allowedCounts = [100, 500, 1000, 5000, 10000];
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if (!in_array($testCount, $allowedCounts, true)) {
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throw new ApiException('测试次数仅支持 100、500、1000、5000、10000');
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}
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$grouped = $this->getListGroupedByTier();
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$tiers = ['T1', 'T2', 'T3', 'T4', 'T5'];
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$tierWeights = [1, 1, 1, 1, 1];
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$config = null;
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if ($lotteryConfigId !== null && $lotteryConfigId > 0) {
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$config = DiceLotteryPoolConfig::find($lotteryConfigId);
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}
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if (!$config) {
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$config = DiceLotteryPoolConfig::where('type', 0)->find();
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}
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if ($config) {
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$tierWeights = [
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(int) ($config->t1_weight ?? 0),
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(int) ($config->t2_weight ?? 0),
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(int) ($config->t3_weight ?? 0),
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(int) ($config->t4_weight ?? 0),
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(int) ($config->t5_weight ?? 0),
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];
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if (array_sum($tierWeights) <= 0) {
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$tierWeights = [1, 1, 1, 1, 1];
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}
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}
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$counts = [];
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$maxRetry = 20;
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for ($i = 0; $i < $testCount; $i++) {
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$tier = self::drawTierByWeightArray($tiers, $tierWeights);
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$rewards = $grouped[$tier] ?? [];
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if (empty($rewards)) {
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continue;
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}
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$attempt = 0;
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while ($attempt < $maxRetry) {
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try {
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$chosen = self::drawRewardByWeight($rewards);
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$gridNumber = isset($chosen['grid_number']) ? (int) $chosen['grid_number'] : 0;
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if ($gridNumber >= 5 && $gridNumber <= 30) {
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$counts[$gridNumber] = ($counts[$gridNumber] ?? 0) + 1;
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}
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break;
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} catch (\RuntimeException $e) {
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if ($e->getMessage() === self::EXCEPTION_WEIGHT_ALL_ZERO) {
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$attempt++;
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continue;
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}
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throw $e;
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}
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}
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}
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$snapshot = [];
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foreach ($grouped as $tierKey => $rows) {
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foreach ($rows as $row) {
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$snapshot[] = [
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'id' => (int) ($row['id'] ?? 0),
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'grid_number' => (int) ($row['grid_number'] ?? 0),
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'tier' => (string) ($row['tier'] ?? ''),
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'weight' => (int) ($row['weight'] ?? 0),
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];
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}
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}
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$tierWeightsSnapshot = [
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'T1' => $tierWeights[0] ?? 0,
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'T2' => $tierWeights[1] ?? 0,
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'T3' => $tierWeights[2] ?? 0,
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'T4' => $tierWeights[3] ?? 0,
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'T5' => $tierWeights[4] ?? 0,
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];
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$recordId = null;
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if ($saveRecord) {
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$record = new DiceRewardConfigRecord();
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$record->test_count = $testCount;
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$record->weight_config_snapshot = $snapshot;
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$record->tier_weights_snapshot = $tierWeightsSnapshot;
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$record->lottery_config_id = $config ? (int) $config->id : null;
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$record->result_counts = $counts;
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$record->admin_id = $adminId;
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$record->create_time = date('Y-m-d H:i:s');
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$record->save();
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$recordId = (int) $record->id;
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}
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return ['counts' => $counts, 'record_id' => $recordId];
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}
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}
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