Initial cloud-services repo - gateway service + pkg modules

pkg/utils/mt19937/bernoulli_distribution.go

@@ -0,0 +1,30 @@
+package mt19937
+
+import (
+	"fiskerinc.com/modules/logger"
+)
+
+type bernoulli_distribution struct {
+	m_prob float64
+	m_eng  *MT19937
+}
+
+func DistBernolli(eng *MT19937, prob float64) *bernoulli_distribution {
+	if prob < 0 || prob > 1 {
+		logger.Error().Msg("prob must be between 0 and 1")
+		return nil
+	}
+	dist := &bernoulli_distribution{
+		m_prob: prob,
+		m_eng:  eng,
+	}
+	return dist
+}
+
+func (dist *bernoulli_distribution) Bool() bool {
+	if dist.m_prob == 0 {
+		return false
+	} else {
+		return float64(dist.m_eng.Random()) <= dist.m_prob*float64(^uint64(0))
+	}
+}