44 lines
2.2 KiB
XML
44 lines
2.2 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.ruoyi.game.mahjong.mapper.MahjongRoundMapper">
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<select id="pickByBucket" resultType="com.ruoyi.game.mahjong.domain.MahjongRound">
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SELECT * FROM game_mahjong_round
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WHERE box_id = #{boxId} AND bucket_id = #{bucketId}
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<if test="needFreeSpins != null and needFreeSpins == true">AND free_spin_count > 0</if>
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<if test="needFreeSpins != null and needFreeSpins == false">AND free_spin_count = 0</if>
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ORDER BY RAND() LIMIT 1
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</select>
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<select id="pickAnyByBox" resultType="com.ruoyi.game.mahjong.domain.MahjongRound">
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SELECT * FROM game_mahjong_round
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WHERE box_id = #{boxId}
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<if test="needFreeSpins != null and needFreeSpins == true">AND free_spin_count > 0</if>
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<if test="needFreeSpins != null and needFreeSpins == false">AND free_spin_count = 0</if>
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ORDER BY RAND() LIMIT 1
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</select>
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<!-- 收敛阶段：桶内取 actual_mul 最接近 desiredMul 的回合，优先 actual_mul ≤ capMul，从 top-10 随机取1 -->
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<select id="pickClosestMul" resultType="com.ruoyi.game.mahjong.domain.MahjongRound">
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SELECT * FROM (
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SELECT * FROM game_mahjong_round
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WHERE box_id = #{boxId} AND bucket_id = #{bucketId}
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<if test="needFreeSpins != null and needFreeSpins == true">AND free_spin_count > 0</if>
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<if test="needFreeSpins != null and needFreeSpins == false">AND free_spin_count = 0</if>
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ORDER BY (CASE WHEN actual_mul <= #{capMul} THEN 0 ELSE 1 END),
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ABS(actual_mul - #{desiredMul})
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LIMIT 10
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) AS closest_pool
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ORDER BY RAND() LIMIT 1
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</select>
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<!-- 统计某个箱子池子里每个桶"实际赔出去多少"的均值：配比计算与后台「目标RTP」按它算 -->
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<select id="avgMulByBucket" resultType="java.util.Map">
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SELECT bucket_id AS bucketId, COUNT(*) AS sampleCount, AVG(actual_mul) AS avgMul
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FROM game_mahjong_round
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WHERE box_id = #{boxId}
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GROUP BY bucket_id
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</select>
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</mapper>
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