fixed dependencies

vendor/github.com/starainrt/astro/tools/math.go

@@ -0,0 +1,53 @@
+package tools
+
+import (
+	"math"
+)
+
+func Sin(x float64) float64 {
+	return (math.Sin(x * math.Pi / 180.00000))
+}
+
+func Cos(x float64) float64 {
+	return (math.Cos(x * math.Pi / 180.00000))
+}
+
+func Tan(x float64) float64 {
+	return (math.Tan(x * math.Pi / 180.00000))
+}
+
+func ArcSin(x float64) float64 {
+	return (math.Asin(x) / math.Pi * 180.00000)
+}
+
+func ArcCos(x float64) float64 {
+	return (math.Acos(x) / math.Pi * 180.00000)
+}
+
+func ArcTan(x float64) float64 {
+	return (math.Atan(x) / math.Pi * 180.00000)
+}
+
+func FloatRound(f float64, n int) float64 {
+	p := math.Pow10(n)
+	return math.Floor(f*p+0.5) / p
+}
+
+func Limit360(x float64) float64 {
+	x = math.Mod(x, 360)
+	if x < 0 {
+		x += 360
+	}
+	return x
+}
+
+func FR(f float64) float64 {
+	return FloatRound(f, 14)
+}
+
+func Abs(x int) int {
+	if x < 0 {
+		return -x
+	}
+	return x
+}