Tracks meta

1 files changed, 28 insertions, 0 deletions

diff --git a/Settings/Distribution.go b/Settings/Distribution.go
new file mode 100644
index 0000000..fc8ae13
--- /dev/null
+++ b/Settings/Distribution.go
@@ -0,0 +1,28 @@
+package settings
+
+import "math/rand"
+
+type distributionOptions struct {
+	// The chance of a value to be defaulted by zero
+	RandomisationChance float64
+	// The song start point will be between [0; len(song) * MaxPointPercent]
+	MaxPointPercent float64
+	// All the values less than this param will be defaulted to zero
+
+	StartSnapPercent float64
+}
+
+func (base distributionOptions) GetDistributedInt(dur int) int {
+	if rand.Float64() < base.RandomisationChance {
+		return 0
+	}
+	var random = rand.Float64() * base.MaxPointPercent
+	if random >= 1 {
+		panic("Random is greater than 1")
+	}
+	var randomDur = int(random * float64(dur))
+	if randomDur <= int(base.StartSnapPercent * float64(dur)) {
+		return 0
+	}
+	return randomDur
+}