From 931fb4dc11509357297bcdcc6a8d6b11638ff585 Mon Sep 17 00:00:00 2001
From: Silc Renew <tokage.it.lab@gmail.com>
Date: Fri, 26 Aug 2022 11:42:00 +0900
Subject: Add linear/cubic angle interpolation to Animation interpolation type

---
 doc/classes/@GlobalScope.xml | 26 ++++++++++++++++++++++++++
 doc/classes/Animation.xml    |  8 ++++++++
 2 files changed, 34 insertions(+)

(limited to 'doc/classes')

diff --git a/doc/classes/@GlobalScope.xml b/doc/classes/@GlobalScope.xml
index 59d6f878a9..71579d5173 100644
--- a/doc/classes/@GlobalScope.xml
+++ b/doc/classes/@GlobalScope.xml
@@ -260,6 +260,32 @@
 				Cubic interpolates between two values by the factor defined in [param weight] with pre and post values.
 			</description>
 		</method>
+		<method name="cubic_interpolate_angle">
+			<return type="float" />
+			<param index="0" name="from" type="float" />
+			<param index="1" name="to" type="float" />
+			<param index="2" name="pre" type="float" />
+			<param index="3" name="post" type="float" />
+			<param index="4" name="weight" type="float" />
+			<description>
+				Cubic interpolates between two rotation values with shortest path by the factor defined in [param weight] with pre and post values. See also [method lerp_angle].
+			</description>
+		</method>
+		<method name="cubic_interpolate_angle_in_time">
+			<return type="float" />
+			<param index="0" name="from" type="float" />
+			<param index="1" name="to" type="float" />
+			<param index="2" name="pre" type="float" />
+			<param index="3" name="post" type="float" />
+			<param index="4" name="weight" type="float" />
+			<param index="5" name="to_t" type="float" />
+			<param index="6" name="pre_t" type="float" />
+			<param index="7" name="post_t" type="float" />
+			<description>
+				Cubic interpolates between two rotation values with shortest path by the factor defined in [param weight] with pre and post values. See also [method lerp_angle].
+				It can perform smoother interpolation than [code]cubic_interpolate()[/code] by the time values.
+			</description>
+		</method>
 		<method name="cubic_interpolate_in_time">
 			<return type="float" />
 			<param index="0" name="from" type="float" />
diff --git a/doc/classes/Animation.xml b/doc/classes/Animation.xml
index 8b97fda4d3..df0fb11ac7 100644
--- a/doc/classes/Animation.xml
+++ b/doc/classes/Animation.xml
@@ -600,6 +600,14 @@
 		<constant name="INTERPOLATION_CUBIC" value="2" enum="InterpolationType">
 			Cubic interpolation.
 		</constant>
+		<constant name="INTERPOLATION_LINEAR_ANGLE" value="3" enum="InterpolationType">
+			Linear interpolation with shortest path rotation.
+			[b]Note:[/b] The result value is always normalized and may not match the key value.
+		</constant>
+		<constant name="INTERPOLATION_CUBIC_ANGLE" value="4" enum="InterpolationType">
+			Cubic interpolation with shortest path rotation.
+			[b]Note:[/b] The result value is always normalized and may not match the key value.
+		</constant>
 		<constant name="UPDATE_CONTINUOUS" value="0" enum="UpdateMode">
 			Update between keyframes.
 		</constant>
-- 
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