From a59f1eb8af6b1eb7080427bb6226f494306b98cd Mon Sep 17 00:00:00 2001
From: Ellpeck <me@ellpeck.de>
Date: Tue, 16 Nov 2021 15:08:35 +0100
Subject: [PATCH] Added missing easing functions Quart and Quint to Easings

---
 CHANGELOG.md         |  1 +
 MLEM/Misc/Easings.cs | 14 ++++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d9892da..35b30d6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ Additions
 - Added a strikethrough formatting code
 - Added GenericFont SplitStringSeparate which differentiates between existing newline characters and splits due to maximum width
 - Added StaticSpriteBatch class
+- Added missing easing functions Quart and Quint to Easings
 
 Improvements
 - Cache TokenizedString inner offsets for non-Left text alignments to improve performance
diff --git a/MLEM/Misc/Easings.cs b/MLEM/Misc/Easings.cs
index 93f9deb..46e30e4 100644
--- a/MLEM/Misc/Easings.cs
+++ b/MLEM/Misc/Easings.cs
@@ -29,6 +29,20 @@ namespace MLEM.Misc {
         /// <summary>https://easings.net/#easeInOutCubic</summary>
         public static readonly Easing InOutCubic = p => p < 0.5F ? 4 * p * p * p : 1 - (-2 * p + 2) * (-2 * p + 2) * (-2 * p + 2) / 2;
 
+        /// <summary>https://easings.net/#easeInQuart</summary>
+        public static readonly Easing InQuart = p => p * p * p * p;
+        /// <summary>https://easings.net/#easeOutQuart</summary>
+        public static readonly Easing OutQuart = p => 1 - (1 - p) * (1 - p) * (1 - p) * (1 - p);
+        /// <summary>https://easings.net/#easeInOutQuart</summary>
+        public static readonly Easing InOutQuart = p => p < 0.5F ? 8 * p * p * p * p : 1 - (-2 * p + 2) * (-2 * p + 2) * (-2 * p + 2) * (-2 * p + 2) / 2;
+
+        /// <summary>https://easings.net/#easeInQuint</summary>
+        public static readonly Easing InQuint = p => p * p * p * p * p;
+        /// <summary>https://easings.net/#easeOutQuint</summary>
+        public static readonly Easing OutQuint = p => 1 - (1 - p) * (1 - p) * (1 - p) * (1 - p) * (1 - p);
+        /// <summary>https://easings.net/#easeInOutQuint</summary>
+        public static readonly Easing InOutQuint = p => p < 0.5F ? 16 * p * p * p * p * p : 1 - (-2 * p + 2) * (-2 * p + 2) * (-2 * p + 2) * (-2 * p + 2) * (-2 * p + 2) / 2;
+
         /// <summary>https://easings.net/#easeInExpo</summary>
         public static readonly Easing InExpo = p => p == 0 ? 0 : (float) Math.Pow(2, 10 * p - 10);
         /// <summary>https://easings.net/#easeOutExpo</summary>