random

Documentation

Index

• func Probability(per int32, args ...int32) bool
• func Relative(items map[int32]int32) int32
• func RelativeMulti(items map[int32]int32, num int32, repeat ...bool) []int32
• func Roll(a, b int32) int32
• type Data
  • func (this *Data) GetKey() int32
  • func (this *Data) GetVal() int32
• type Less
• type Random
  • func New(items map[int32]int32, less ...Less) *Random
  • func (this *Random) Filter(filter func(k, v int32) bool) *Random
  • func (this *Random) Multi(num int) (r []int32)
  • func (this *Random) Range(f func(k, v int32) bool)
  • func (this *Random) Reset(filter func(k, v int32) int32) *Random
  • func (this *Random) Roll() int32
  • func (this *Random) Sort(f Less)
  • func (this *Random) Weight() (r int32)

Functions

func Probability

func Probability(per int32, args ...int32) bool

Probability 独立概率，args单位，默认万分比，，，百分比传入100

func Relative

func Relative(items map[int32]int32) int32

Relative 相对概率，权重

func RelativeMulti

func RelativeMulti(items map[int32]int32, num int32, repeat ...bool) []int32

RelativeMulti 相对概率，权重 返回多个,repeat 是否可以重复

func Roll

func Roll(a, b int32) int32

Types

type Data

type Data struct {
	Key int32 //序号
	Val int32 //权重
}

func (*Data) GetKey

func (this *Data) GetKey() int32

func (*Data) GetVal

func (this *Data) GetVal() int32

type Less

type Less func(a, b *Data) bool

type Random

type Random struct {
	// contains filtered or unexported fields
}

func New

func New(items map[int32]int32, less ...Less) *Random

func (*Random) Filter

func (this *Random) Filter(filter func(k, v int32) bool) *Random

Filter 根据 filter 剔除不符合规则的项目

func (*Random) Multi

func (this *Random) Multi(num int) (r []int32)

Multi 随机多个不重复

func (*Random) Range

func (this *Random) Range(f func(k, v int32) bool)

func (*Random) Reset

func (this *Random) Reset(filter func(k, v int32) int32) *Random

Reset 根据 filter 重新设定权重

func (*Random) Roll

func (this *Random) Roll() int32

Roll 简单的权重算法，直接计算区间落点

func (*Random) Sort

func (this *Random) Sort(f Less)

func (*Random) Weight

func (this *Random) Weight() (r int32)