51 lines
1.3 KiB
Go
51 lines
1.3 KiB
Go
package info
|
|
|
|
import "math/rand"
|
|
|
|
// PlayerCaptureContext 用户捕捉上下文（每次登录创建）
|
|
type PlayerCaptureContext struct {
|
|
Random *rand.Rand
|
|
Denominator int // 统一分母=1000
|
|
DecayFactor float64 // 衰减系数
|
|
MinDecayNum int // 衰减分子最小值
|
|
Guarantees map[int]int // 按分母分组的保底分子 map[denominator]numerator
|
|
}
|
|
|
|
// Roll 通用概率判定（带共享保底）
|
|
func (c *PlayerCaptureContext) Roll(numerator, denominator int) (bool, float64, float64) {
|
|
if denominator <= 0 {
|
|
return false, 0, 0
|
|
}
|
|
|
|
base := float64(numerator) / float64(denominator)
|
|
bonus := float64(c.getGuaranteeNumerator(denominator)) / float64(denominator)
|
|
total := base + bonus
|
|
if total > 1.0 {
|
|
total = 1.0
|
|
}
|
|
|
|
success := c.Random.Float64() < total
|
|
|
|
if success {
|
|
c.resetGuarantee(denominator)
|
|
} else {
|
|
c.increaseGuarantee(denominator)
|
|
}
|
|
|
|
return success, base * 100, bonus * 100
|
|
}
|
|
|
|
// 保底操作
|
|
func (c *PlayerCaptureContext) getGuaranteeNumerator(denominator int) int {
|
|
if num, ok := c.Guarantees[denominator]; ok {
|
|
return num
|
|
}
|
|
return 0
|
|
}
|
|
func (c *PlayerCaptureContext) increaseGuarantee(denominator int) {
|
|
c.Guarantees[denominator]++
|
|
}
|
|
func (c *PlayerCaptureContext) resetGuarantee(denominator int) {
|
|
c.Guarantees[denominator] = 0
|
|
}
|