From e9ea621b93fbb58d9edfca8375918791637bbd52 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Wed, 30 Dec 2020 20:59:04 +0800
Subject: +init

---
 Impostor-dev/src/Impostor.Api/Unity/Mathf.cs | 54 ++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 Impostor-dev/src/Impostor.Api/Unity/Mathf.cs

(limited to 'Impostor-dev/src/Impostor.Api/Unity/Mathf.cs')

diff --git a/Impostor-dev/src/Impostor.Api/Unity/Mathf.cs b/Impostor-dev/src/Impostor.Api/Unity/Mathf.cs
new file mode 100644
index 0000000..4b03417
--- /dev/null
+++ b/Impostor-dev/src/Impostor.Api/Unity/Mathf.cs
@@ -0,0 +1,54 @@
+namespace Impostor.Api.Unity
+{
+    public static class Mathf
+    {
+        /// <summary>
+        ///   <para>Clamps the given value between the given minimum float and maximum float values.  Returns the given value if it is within the min and max range.</para>
+        /// </summary>
+        /// <param name="value">The floating point value to restrict inside the range defined by the min and max values.</param>
+        /// <param name="min">The minimum floating point value to compare against.</param>
+        /// <param name="max">The maximum floating point value to compare against.</param>
+        /// <returns>
+        ///   <para>The float result between the min and max values.</para>
+        /// </returns>
+        public static float Clamp(float value, float min, float max)
+        {
+            if (value < (double)min)
+            {
+                value = min;
+            }
+            else if (value > (double)max)
+            {
+                value = max;
+            }
+
+            return value;
+        }
+
+        /// <summary>
+        ///   <para>Clamps value between 0 and 1 and returns value.</para>
+        /// </summary>
+        /// <param name="value">Value.</param>
+        /// <returns>Clamped value.</returns>
+        public static float Clamp01(float value)
+        {
+            if (value < 0.0)
+            {
+                return 0.0f;
+            }
+
+            return (double)value > 1.0 ? 1f : value;
+        }
+
+        /// <summary>
+        ///   <para>Linearly interpolates between a and b by t.</para>
+        /// </summary>
+        /// <param name="a">The start value.</param>
+        /// <param name="b">The end value.</param>
+        /// <param name="t">The interpolation value between the two floats.</param>
+        /// <returns>
+        ///   <para>The interpolated float result between the two float values.</para>
+        /// </returns>
+        public static float Lerp(float a, float b, float t) => a + ((b - a) * Clamp01(t));
+    }
+}
\ No newline at end of file
-- 
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