package lottery

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

// 4星Weapon
func RandomRareWeapon() string {
	global.LastRareWeapon = 0
	global.LastEpicWeapon += 1
	diceUp := rand.Intn(100)
	//up4占4星出货75%
	if diceUp <= 74 {
		//当前UP的4星Weapon
		return RandomStr(global.UpRareWeapon)
	}
	diceChar := rand.Intn(10)
	//4星概率为6%  其中角色3% 武器3%
	if diceChar <= 4 {
		//常驻4星角色
		return RandomStr(global.RareChar)
	}
	//常驻4星武器
	return RandomStr(global.RareWeapon)
}