概率优化

app/logic/ZoneLogic.php

@@ -611,9 +611,10 @@ class ZoneLogic
      */
     protected static function judgeUserRate():array
     {
+        $residue_amount = 0;
+        $usage_rate = 0;
         try {
             $rate = SettingModel::settingLoad('amount_probability') ?: '0.5';
-            $residue_amount = 0;
 
             # 最近一次充值金额
             $lastRechargeAmount = RechargeRecords::lastRechargeAmount([['user_id','=',self::$user_id]]);
@@ -623,6 +624,7 @@ class ZoneLogic
 
                 $recharge_time = $lastRechargeAmount['recharge_time']; // 充值时间
                 $recharge_amount = $lastRechargeAmount['recharge_amount']; // 充值金额
+                $usage_amount = $lastRechargeAmount['usage_amount']; // 充值金额
                 $estimate_awards_amount = round($recharge_amount * $rate,2); // 预估中奖金额
 
                 # 充值后消费金额
@@ -643,6 +645,19 @@ class ZoneLogic
                     return ['status' => 1];
                 }
 
+                # 使用金额充值金额占比
+                $usage_amount_rate = round($usage_amount / $recharge_amount,4);
+                # 中奖金额小于预估金额 且 使用占比 展示小于 中奖概率时 加码
+                $rateHalf = round($rate / 2,4);
+                if ($sum_amount < $estimate_awards_amount && $usage_amount_rate > $rateHalf && $usage_amount_rate < $rate) {
+                    $usage_rate = round($sum_amount / $recharge_amount,4);
+                }
+
+                # 如果使用金额概率 达到 中奖概率 加码
+                $temp_rate = round($usage_amount_rate/$rate,4);
+                if ($temp_rate >= ($rateHalf + $rate)) {
+                    $usage_rate = $temp_rate;
+                }
             }
 
         } catch (\Exception $e) {
@@ -651,7 +666,8 @@ class ZoneLogic
 
         return [
             'status' => 0,
-            'residue_amount' => $residue_amount
+            'residue_amount' => $residue_amount,
+            'usage_rate' => $usage_rate
         ];
     }
 
@@ -673,15 +689,17 @@ class ZoneLogic
                 $item['awards'] = 0;
             } else {
                 //if (($item['amount'] * $sumCount) < $judgeRate['residue_amount']) {
+                if ($judgeRate['usage_rate']) {
                     $zoneGoodsData = self::$zoneGoodsData;
                     $ceilAmount = ceil($item['amount'] / $zoneGoodsData['price']);
                     if ($ceilAmount >= 5) {
                         $item['probability'] = $item['probability'] * 2;
                     }elseif($item['amount'] > $zoneGoodsData['price']) {
-                        $rand = rand_float(0,$item['probability'] * 3);
+                        $rand = rand_float(0,$item['probability']);
                         $item['probability'] += $rand;
                     } else {
-                        $item['probability'] += rand_float(0,1 - $item['probability']);
+                        $item['probability'] += rand_float(0,$judgeRate['usage_rate']);
+                    }
                 }
                 //}
             }
@@ -698,7 +716,7 @@ class ZoneLogic
     protected static function restrictAmount($selectedPattern,$sumAmount)
     {
         $judgeRateData = self::$judgeRateData;
-        if (!$judgeRateData['status'] && $sumAmount >= $judgeRateData['residue_amount']) {
+        if (!$judgeRateData['status'] && $sumAmount > $judgeRateData['residue_amount']) {
             $selectedPattern['id'] = 0;
             $selectedPattern['awards'] = 0;
         }