s_cherry_e/sr/nodes/game/player/item/use/random.go

package itemUse

import (
	"f1-game/internal/code"
	"f1-game/internal/data"
	"f1-game/internal/enum"
	"f1-game/internal/pb"
	"f1-game/internal/types"
)

// Random 使用后按随机规则添加
type Random struct {
}

func (*Random) UseType() enum.ItemUseType {
	return enum.ItemUseRandom
}

func (*Random) Use(_ int64, req *pb.ItemUseRequest, poolID int32) (types.Assets, int32) {
	weighter, found := data.DropPool.GetWeighter(poolID)
	if !found {
		return types.NoneAssets, code.ItemUseFail
	}

	retAssets := types.Assets{} // return assets
	for range req.UseNum {
		// 随机取一个物品
		row := weighter.SelectOne()
		if row == nil {
			continue
		}

		retAssets.Add(row.ItemID, row.Num)
	}

	return retAssets, code.OK
}