Initial commit

implemented the game of life variation with hexagonal grid

math/ops_test.go

@@ -0,0 +1,47 @@
+package math
+
+import (
+	"testing"
+)
+
+func TestAbs(t *testing.T) {
+	assertEqual(t, 0, Abs(0))
+	assertEqual(t, 1, Abs(1))
+	assertEqual(t, 2, Abs(-2))
+
+	assertEqual(t, 0.0, Abs(0.0))
+	assertEqual(t, 1.5, Abs(1.5))
+	assertEqual(t, 2.75, Abs(-2.75))
+}
+
+func TestRoundPositive(t *testing.T) {
+	posf64 := float64(0.987654321)
+	posf64 = Round(posf64, 2)
+	assertEqual(t, float64(0.99), posf64)
+
+	posf32 := float32(0.987654321)
+	posf32 = Round(posf32, 5)
+	assertEqual(t, float32(0.98765), posf32)
+
+	negf64 := float64(-0.987654321)
+	negf64 = Round(negf64, 2)
+	assertEqual(t, float64(-0.99), negf64)
+
+	negf32 := float32(-0.987654321)
+	negf32 = Round(negf32, 5)
+	assertEqual(t, float32(-0.98765), negf32)
+}
+
+func TestRoundInt(t *testing.T) {
+	i := RoundInt(float64(0.5))
+	assertEqual(t, 1, i)
+
+	i = RoundInt(float32(1.4999999))
+	assertEqual(t, 1, i)
+}
+
+func assertEqual[T comparable](t testing.TB, want, got T) {
+	if want != got {
+		t.Fatalf("want %v but got %v", want, got)
+	}
+}