package lottery

import (
	"GenshinImpact/global"
	"math/rand"
)

// 5星
func RandomEpic() string {
	global.LastEpic = 0
	global.LastRare = 0
	if global.LastEpicCommon == true {
		global.LastEpicCommon = false
		return RandomEpicUPCharator()
	}
	diceUp := rand.Intn(10)
	if diceUp <= 4 {
		return RandomEpicUPCharator()
	}
	return RandomEpicCommonCharactor()
}

// 常驻5星角色
func RandomEpicCommonCharactor() string {
	global.LastEpicCommon = true
	epicCommonCharactorPool := global.EpicCommonCharactorPool
	return epicCommonCharactorPool[rand.Intn(len(epicCommonCharactorPool))]
}

// 当期up角色
func RandomEpicUPCharator() string {
	return global.UpEpicChar
}