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巡乐会抽奖接口提交.-联调-抽奖逻辑调整

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赵钊
2025-09-02 15:08:11 +08:00
parent 394c318aa7
commit 6ed12d2ec6
1 changed files with 27 additions and 26 deletions
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53
application/api/model/BlindBoxTurntableGift.php
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@@ -196,13 +196,20 @@ class BlindBoxTurntableGift extends Model
* 单人单次抽奖 * 单人单次抽奖
*/ */
public function draw_gift_one($gift_bag_id, $user_id, $gift_user_id,$gift_price,$periods,$room_id=0,$box_turntable_log=0){ public function draw_gift_one($gift_bag_id, $user_id, $gift_user_id,$gift_price,$periods,$room_id=0,$box_turntable_log=0){
//奖池总的抽奖次数
$total_quantity = db::name("vs_gift_bag_detail")->where(['gift_bag_id' => $gift_bag_id])->sum('quantity');
$total_remaining = db::name("vs_room_pan")->where(['room_id'=>$room_id,'gift_bag_id'=>$gift_bag_id])->value('remaining_number');
//本期当前第多少次后抽奖 总的抽奖次数- 剩余数量
$total_draw_times = $total_quantity - $total_remaining;
//随机获取一个礼物 //随机获取一个礼物
$where = [ $where = [
'a.gift_bag_id' => $gift_bag_id, 'a.gift_bag_id' => $gift_bag_id,
'a.quantity' => ['>',0], 'a.quantity' => ['>',0],
'b.remaining_number' => ['>',0], 'b.remaining_number' => ['>',0],
'b.room_id' => $room_id 'b.room_id' => $room_id,
]; ];
// 使用闭包条件来处理复杂的 weight 逻辑
$where['a.weight'] = ['exp', Db::raw('= 0 OR a.weight < '.$total_draw_times)];
// 优化：基于剩余数量的加权随机选择 // 优化：基于剩余数量的加权随机选择
$gift_bag_details = db::name("vs_gift_bag_detail") $gift_bag_details = db::name("vs_gift_bag_detail")
->field('a.id,a.quantity,b.remaining_number,a.weight,a.foreign_id') ->field('a.id,a.quantity,b.remaining_number,a.weight,a.foreign_id')
@@ -213,26 +220,18 @@ class BlindBoxTurntableGift extends Model
if (empty($gift_bag_details)) { if (empty($gift_bag_details)) {
return ['code' => 0, 'msg' => '当前盲盒无可用礼物', 'data' => []]; return ['code' => 0, 'msg' => '当前盲盒无可用礼物', 'data' => []];
} }
//奖池总的抽奖次数
$total_quantity = db::name("vs_gift_bag_detail")->where(['gift_bag_id' => $gift_bag_id])->sum('quantity');
// 实现加权随机算法：剩余数量越多，被抽中的概率越大 // 实现加权随机算法：剩余数量越多，被抽中的概率越大
$total_remaining = 0; $remaining = 0;
foreach ($gift_bag_details as $gift) { foreach ($gift_bag_details as $gift) {
$total_remaining += $gift['remaining_number']; $remaining += $gift['remaining_number'];
} }
//本期当前第多少次后抽奖 总的抽奖次数- 剩余数量 $rand_value = mt_rand(1, $remaining);
$total_draw_times = $total_quantity - $total_remaining;
$rand_value = mt_rand(1, $total_remaining);
$current_sum = 0; $current_sum = 0;
$gift_bag_detail = null; $gift_bag_detail = null;
foreach ($gift_bag_details as $gift) { foreach ($gift_bag_details as $gift) {
if($gift['remaining_number'] <= 0){ if($gift['remaining_number'] <= 0){
continue; continue;
} }
if($total_draw_times < $gift['weight']){
continue;
}
$current_sum += $gift['remaining_number']; $current_sum += $gift['remaining_number'];
if ($rand_value <= $current_sum) { if ($rand_value <= $current_sum) {
$gift_bag_detail = $gift; $gift_bag_detail = $gift;
@@ -494,16 +493,24 @@ class BlindBoxTurntableGift extends Model
} }
$is_zhong_jiang = 0; $is_zhong_jiang = 0;
$pan_xlh_num = $pan_xlh['num']; $pan_xlh_num = $pan_xlh['num'];
//奖池总的抽奖次数
$total_quantity = db::name("vs_gift_bag_detail")->where(['gift_bag_id' => $gift_bag_id])->sum('quantity');
db::startTrans(); db::startTrans();
try{ try{
for($i = 0; $i < $num; $i++){ for($i = 0; $i < $num; $i++){
//本期当前第多少次后抽奖 总的抽奖次数- 剩余数量
$total_remaining = db::name("vs_room_pan")->where(['room_id'=>$room_id,'gift_bag_id'=>$gift_bag_id])->value('remaining_number');
$total_draw_times = $total_quantity - $total_remaining;
//随机获取一个礼物 //随机获取一个礼物
$where = [ $where = [
'a.gift_bag_id' => $gift_bag_id, 'a.gift_bag_id' => $gift_bag_id,
'a.quantity' => ['>',0], 'a.quantity' => ['>',0],
'b.remaining_number' => ['>',0], 'b.remaining_number' => ['>',0],
'b.room_id' => $room_id 'b.room_id' => $room_id,
]; ];
// 使用闭包条件来处理复杂的 weight 逻辑
$where['a.weight'] = ['exp', Db::raw('= 0 OR a.weight < '.$total_draw_times)];
// 优化：基于剩余数量的加权随机选择 // 优化：基于剩余数量的加权随机选择
$gift_bag_details = db::name("vs_gift_bag_detail") $gift_bag_details = db::name("vs_gift_bag_detail")
->field('a.id,a.quantity,b.remaining_number,a.weight,a.foreign_id') ->field('a.id,a.quantity,b.remaining_number,a.weight,a.foreign_id')
@@ -511,29 +518,23 @@ class BlindBoxTurntableGift extends Model
->join('vs_room_pan b','b.gift_bag_detail_id = a.id','left') ->join('vs_room_pan b','b.gift_bag_detail_id = a.id','left')
->where($where) ->where($where)
->select(); ->select();
print_r($gift_bag_details);die;
if (empty($gift_bag_details)) { if (empty($gift_bag_details)) {
return ['code' => 0, 'msg' => '当前盲盒无可用礼物', 'data' => []]; return ['code' => 0, 'msg' => '当前盲盒无可用礼物', 'data' => []];
} }
//奖池总的抽奖次数
$total_quantity = db::name("vs_gift_bag_detail")->where(['gift_bag_id' => $gift_bag_id])->sum('quantity');
// 实现加权随机算法：剩余数量越多，被抽中的概率越大
$total_remaining = 0;
foreach ($gift_bag_details as $gift) {
$total_remaining += $gift['remaining_number'];
}
//本期当前第多少次后抽奖 总的抽奖次数- 剩余数量
$total_draw_times = $total_quantity - $total_remaining;
$rand_value = mt_rand(1, $total_remaining); // 实现加权随机算法：剩余数量越多，被抽中的概率越大
$remaining = 0;
foreach ($gift_bag_details as $gift) {
$remaining += $gift['remaining_number'];
}
$rand_value = mt_rand(1, $remaining);
$current_sum = 0; $current_sum = 0;
$gift_bag_detail = null; $gift_bag_detail = null;
foreach ($gift_bag_details as $gift) { foreach ($gift_bag_details as $gift) {
if($gift['remaining_number'] <= 0){ if($gift['remaining_number'] <= 0){
continue; continue;
} }
if($total_draw_times < $gift['weight']){
continue;
}
$current_sum += $gift['remaining_number']; $current_sum += $gift['remaining_number'];
if ($rand_value <= $current_sum) { if ($rand_value <= $current_sum) {
$gift_bag_detail = $gift; $gift_bag_detail = $gift;