From add5eb6a4a1c8228e789f90ca100fc92f12baaea Mon Sep 17 00:00:00 2001
From: nea <nea@nea.moe>
Date: Fri, 2 Jun 2023 02:42:42 +0200
Subject: Improve floating point number formatting

---
 src/main/kotlin/moe/nea/firmament/util/FirmFormatters.kt | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 src/main/kotlin/moe/nea/firmament/util/FirmFormatters.kt

(limited to 'src/main/kotlin/moe/nea/firmament/util/FirmFormatters.kt')

diff --git a/src/main/kotlin/moe/nea/firmament/util/FirmFormatters.kt b/src/main/kotlin/moe/nea/firmament/util/FirmFormatters.kt
new file mode 100644
index 0000000..73ef121
--- /dev/null
+++ b/src/main/kotlin/moe/nea/firmament/util/FirmFormatters.kt
@@ -0,0 +1,15 @@
+package moe.nea.firmament.util
+
+import com.google.common.math.IntMath.pow
+import kotlin.math.absoluteValue
+
+object FirmFormatters {
+    fun toString(double: Double, fractionalDigits: Int): String {
+        val long = double.toLong()
+        val δ = (double - long).absoluteValue
+        val μ = pow(10, fractionalDigits)
+        val digits = (μ * δ).toInt().toString().padStart(fractionalDigits, '0').trimEnd('0')
+        return long.toString() + (if (digits.isEmpty()) "" else ".$digits")
+    }
+
+}
-- 
cgit