go_dreamfactory/modules/hero/api_drawCard.go

package hero

import (
	"crypto/rand"
	"go_dreamfactory/comm"
	"go_dreamfactory/pb"
	cfg "go_dreamfactory/sys/configure/structs"
	"math"
	"math/big"
	"strconv"
	"time"

	"google.golang.org/protobuf/proto"
)

func (this *apiComp) DrawCardCheck(session comm.IUserSession, req *pb.HeroDrawCardReq) (code pb.ErrorCode) {
	if req.DrawType <= 0 { // 只能是单抽或10抽
		code = pb.ErrorCode_ReqParameterError
	}
	return
}

//抽卡
func (this *apiComp) DrawCard(session comm.IUserSession, req *pb.HeroDrawCardReq) (code pb.ErrorCode, data proto.Message) {
	var (
		szCards       []string // 最终抽到的卡牌
		totalWeight   int64    // 总权重
		curWeigth     int64    // 临时随机获得的权重
		curStar4Count int32    // 当前4星没抽到的次数
		curStar5Count int32    // 当前5星没抽到的次数
		config4Count  int32    // 配置表中4星保底次数
		config5Count  int32    // 配置表中5星保底次数
		race          int32
		cardW         map[string]int32 // 当前卡牌卡池卡牌对应的权重
		baodiPool     int32            // 保底卡池id
	)

	cardW = make(map[string]int32, 0)
	szCards = make([]string, 0)
	rsp := &pb.HeroDrawCardResp{}
	this.module.Debugf("当前4星抽卡没中次数:%d, 当前5星抽卡没中次数:%d", curStar4Count, curStar5Count)

	curStar4Count, curStar5Count = this.module.modelHero.GetCurStarCount(session.GetUserId(), req.DrawType) // 获取缓存中4,5星没抽到的次数
	// 获取配置文件的权重信息
	_conf, err := this.module.configure.GetHeroDrawConfig(race)
	if err != nil {
		code = pb.ErrorCode_DrawCardTypeNotFound // 抽卡类型不匹配
		return
	}
	// 权重赋值
	for _, v := range _conf {
		cardW[v.Id] += v.Weight
		totalWeight += int64(cardW[v.Id])
	}

	// ======记录活动数据
	cfgData, err := this.module.configure.GetDrawUpDrawConfig()
	if err == nil {
		for _, v := range cfgData.GetDataList() {
			if time.Now().Unix() >= int64(v.TimeOn) && time.Now().Unix() <= int64(v.TimeOff) { // 在这个时间范围之内
				for index, v1 := range v.UpHero {
					if _, ok := cardW[v1]; ok { // 判断卡池有没有这张卡
						cardW[v1] += v.UpWeight[index]
						totalWeight += int64(v.UpWeight[index])
					}
				}
			}
		}
	}
	// =======活动数据记录完成
	_costConf, err := this.module.configure.GetDrawCostConfigByID(req.DrawType) // 抽卡消耗
	if err != nil {
		code = pb.ErrorCode_ConfigNoFound
		return
	}
	config4Count = _costConf.Floor4 // 4星保底次数
	config5Count = _costConf.Floor5 // 5星保底次数
	if config4Count <= 0 {          // 小于等于零 表示没有保底
		config4Count = math.MaxInt32
	}
	if config5Count <= 0 { // 小于等于零 表示没有保底
		config5Count = math.MaxInt32
	}

	code = this.module.CheckRes(session, []*cfg.Game_atn{_costConf.Cost}) // 消耗校验
	if code != pb.ErrorCode_Success {
		return
	}

	for i := 0; i < int(_costConf.Count); i++ {
		n, _ := rand.Int(rand.Reader, big.NewInt(totalWeight)) // [0,totalWeight)
		curWeigth = 0
		for k, v := range cardW {
			curWeigth += int64(v)
			if curWeigth > n.Int64() { // 命中
				// 获取当前星级
				_getCardCfg := this.module.configure.GetHero(k) //获取的英雄信息
				if _getCardCfg == nil {
					continue
				}
				curStar4Count++
				curStar5Count++
				if _getCardCfg.Star == 4 { // 当抽取到的英雄是4星的时候 清除 该类型的保底次数
					curStar4Count = 0

				} else if _getCardCfg.Star == 5 { // 当抽取到的英雄是5星的时候 清除 该类型的保底次数
					curStar5Count = 0 // 清0
				}

				// 达标保底次数
				if curStar4Count >= config4Count {
					baodiPool = _costConf.Floor4cards
				} else if curStar5Count >= config5Count {
					baodiPool = _costConf.Floor5cards
				}
				if baodiPool != 0 {
					id := this.module.modelHero.FloorDrawCard(baodiPool)
					if id != "" {
						szCards = append(szCards, id) // 保底卡池里的卡放入数组种
						break
					}
				}
				szCards = append(szCards, k)
				break
			}
		}
	}
	raceData := &pb.Floor{
		H4: curStar4Count,
		H5: curStar5Count,
	}
	// 更新record 配置信息
	update := map[string]interface{}{}

	update["race"+strconv.Itoa(int(race)-1)] = raceData
	this.module.modelRecord.ChangeHeroRecord(session.GetUserId(), update)
	// 消耗道具
	code = this.module.ConsumeRes(session, []*cfg.Game_atn{_costConf.Cost}, true)
	if code != pb.ErrorCode_Success {
		return
	}
	if err := this.module.modelHero.createMultiHero(session.GetUserId(), szCards...); err != nil {
		code = pb.ErrorCode_HeroCreate
		return
	}

	rsp.Heroes = szCards
	session.SendMsg(string(this.module.GetType()), DrawCard, rsp)
	return
}