Implement snappedi, snappedf, and Vector[2/3/4]i.snapped

doc/classes/@GlobalScope.xml

@@ -16,7 +16,7 @@
 			<return type="Variant" />
 			<param index="0" name="x" type="Variant" />
 			<description>
-				Returns the absolute value of a [Variant] parameter [param x] (i.e. non-negative value). Variant types [int], [float], [Vector2], [Vector2i], [Vector3] and [Vector3i] are supported.
+				Returns the absolute value of a [Variant] parameter [param x] (i.e. non-negative value). Supported types: [int], [float], [Vector2], [Vector2i], [Vector3], [Vector3i], [Vector4], [Vector4i].
 				[codeblock]
 				var a = abs(-1)
 				# a is 1
@@ -36,6 +36,7 @@
 				var f = abs(Vector3i(-7, -8, -9))
 				# f is (7, 8, 9)
 				[/codeblock]
+				[b]Note:[/b] For better type safety, use [method absf], [method absi], [method Vector2.abs], [method Vector2i.abs], [method Vector3.abs], [method Vector3i.abs], [method Vector4.abs], or [method Vector4i.abs].
 			</description>
 		</method>
 		<method name="absf">
@@ -143,7 +144,7 @@
 				i = ceil(1.001)    # i is 2.0
 				[/codeblock]
 				See also [method floor], [method round], and [method snapped].
-				[b]Note:[/b] For better type safety, see [method ceilf], [method ceili], [method Vector2.ceil], [method Vector3.ceil] and [method Vector4.ceil].
+				[b]Note:[/b] For better type safety, use [method ceilf], [method ceili], [method Vector2.ceil], [method Vector3.ceil], or [method Vector4.ceil].
 			</description>
 		</method>
 		<method name="ceilf">
@@ -168,7 +169,7 @@
 			<param index="1" name="min" type="Variant" />
 			<param index="2" name="max" type="Variant" />
 			<description>
-				Clamps the [param value], returning a [Variant] not less than [param min] and not more than [param max]. Variant types [int], [float], [Vector2], [Vector2i], [Vector3] and [Vector3i] are supported.
+				Clamps the [param value], returning a [Variant] not less than [param min] and not more than [param max]. Supported types: [int], [float], [Vector2], [Vector2i], [Vector3], [Vector3i], [Vector4], [Vector4i].
 				[codeblock]
 				var a = clamp(-10, -1, 5)
 				# a is -1
@@ -188,6 +189,7 @@
 				var f = clamp(Vector3i(-7, -8, -9), Vector3i(-1, 2, 3), Vector3i(-4, -5, -6))
 				# f is (-4, -5, -6)
 				[/codeblock]
+				[b]Note:[/b] For better type safety, use [method clampf], [method clampi], [method Vector2.clamp], [method Vector2i.clamp], [method Vector3.clamp], [method Vector3i.clamp], [method Vector4.clamp], or [method Vector4i.clamp].
 			</description>
 		</method>
 		<method name="clampf">
@@ -367,7 +369,7 @@
 				a = floor(-2.99)    # a is -3.0
 				[/codeblock]
 				See also [method ceil], [method round], and [method snapped].
-				[b]Note:[/b] For better type safety, see [method floorf], [method floori], [method Vector2.floor], [method Vector3.floor] and [method Vector4.floor].
+				[b]Note:[/b] For better type safety, use [method floorf], [method floori], [method Vector2.floor], [method Vector3.floor], or [method Vector4.floor].
 			</description>
 		</method>
 		<method name="floorf">
@@ -950,7 +952,7 @@
 				round(2.6) # Returns 3
 				[/codeblock]
 				See also [method floor], [method ceil], and [method snapped].
-				[b]Note:[/b] For better type safety, use [method roundf], [method roundi], [method Vector2.round], [method Vector3.round] or [method Vector4.round], instead.
+				[b]Note:[/b] For better type safety, use [method roundf], [method roundi], [method Vector2.round], [method Vector3.round], or [method Vector4.round].
 			</description>
 		</method>
 		<method name="roundf">
@@ -987,21 +989,22 @@
 			<return type="Variant" />
 			<param index="0" name="x" type="Variant" />
 			<description>
-				Returns the sign of [param x] as same type of [Variant] as [param x] with each component being -1, 0 and 1 for each negative, zero and positive values respectively. Variant types [int], [float], [Vector2], [Vector2i], [Vector3] and [Vector3i] are supported.
+				Returns the same type of [Variant] as [param x], with [code]-1[/code] for negative values, [code]1[/code] for positive values, and [code]0[/code] for zeros. Supported types: [int], [float], [Vector2], [Vector2i], [Vector3], [Vector3i], [Vector4], [Vector4i].
 				[codeblock]
 				sign(-6.0) # Returns -1
 				sign(0.0)  # Returns 0
 				sign(6.0)  # Returns 1
 
-				sign(Vector3(-6.0, 0.0, 6.0) # Returns (-1, 0, 1)
+				sign(Vector3(-6.0, 0.0, 6.0)) # Returns (-1, 0, 1)
 				[/codeblock]
+				[b]Note:[/b] For better type safety, use [method signf], [method signi], [method Vector2.sign], [method Vector2i.sign], [method Vector3.sign], [method Vector3i.sign], [method Vector4.sign], or [method Vector4i.sign].
 			</description>
 		</method>
 		<method name="signf">
 			<return type="float" />
 			<param index="0" name="x" type="float" />
 			<description>
-				Returns the sign of [param x] as a [float]: -1.0 or 1.0. Returns 0.0 if [param x] is 0.0.
+				Returns [code]-1.0[/code] if [param x] is negative, [code]1.0[/code] if [param x] is positive, and [code]0.0[/code] if if [param x] is zero.
 				[codeblock]
 				sign(-6.5) # Returns -1.0
 				sign(0.0)  # Returns 0.0
@@ -1013,7 +1016,7 @@
 			<return type="int" />
 			<param index="0" name="x" type="int" />
 			<description>
-				Returns the sign of [param x] as an [int]: -1 or 1. Returns 0 if [param x] is 0.
+				Returns [code]-1[/code] if [param x] is negative, [code]1[/code] if [param x] is positive, and [code]0[/code] if if [param x] is zero.
 				[codeblock]
 				sign(-6) # Returns -1
 				sign(0)  # Returns 0
@@ -1063,16 +1066,46 @@
 			</description>
 		</method>
 		<method name="snapped">
+			<return type="Variant" />
+			<param index="0" name="x" type="Variant" />
+			<param index="1" name="step" type="Variant" />
+			<description>
+				Returns the multiple of [param step] that is the closest to [param x]. This can also be used to round a floating point number to an arbitrary number of decimals.
+				The returned value is the same type of [Variant] as [param step]. Supported types: [int], [float], [Vector2], [Vector2i], [Vector3], [Vector3i], [Vector4], [Vector4i].
+				[codeblock]
+				snapped(100, 32)  # Returns 96
+				snapped(3.14159, 0.01)  # Returns 3.14
+
+				snapped(Vector2(34, 70), Vector2(8, 8))  # Returns (32, 72)
+				[/codeblock]
+				See also [method ceil], [method floor], and [method round].
+				[b]Note:[/b] For better type safety, use [method snappedf], [method snappedi], [method Vector2.snapped], [method Vector2i.snapped], [method Vector3.snapped], [method Vector3i.snapped], [method Vector4.snapped], or [method Vector4i.snapped].
+			</description>
+		</method>
+		<method name="snappedf">
 			<return type="float" />
 			<param index="0" name="x" type="float" />
 			<param index="1" name="step" type="float" />
 			<description>
-				Snaps the float value [param x] to a given [param step]. This can also be used to round a floating point number to an arbitrary number of decimals.
+				Returns the multiple of [param step] that is the closest to [param x]. This can also be used to round a floating point number to an arbitrary number of decimals.
+				A type-safe version of [method snapped], returning a [float].
 				[codeblock]
-				snapped(100, 32) # Returns 96
-				snapped(3.14159, 0.01) # Returns 3.14
+				snapped(32.0, 2.5)  # Returns 32.5
+				snapped(3.14159, 0.01)  # Returns 3.14
+				[/codeblock]
+			</description>
+		</method>
+		<method name="snappedi">
+			<return type="int" />
+			<param index="0" name="x" type="float" />
+			<param index="1" name="step" type="int" />
+			<description>
+				Returns the multiple of [param step] that is the closest to [param x].
+				A type-safe version of [method snapped], returning an [int].
+				[codeblock]
+				snapped(53, 16)  # Returns 48
+				snapped(4096, 100)  # Returns 4100
 				[/codeblock]
-				See also [method ceil], [method floor], and [method round].
 			</description>
 		</method>
 		<method name="sqrt">