Add length and length_squared to Vector2i/3i

core/math/vector2.cpp

@@ -210,6 +210,14 @@ Vector2i Vector2i::clamp(const Vector2i &p_min, const Vector2i &p_max) const {
 			CLAMP(y, p_min.y, p_max.y));
 }
 
+int64_t Vector2i::length_squared() const {
+	return x * (int64_t)x + y * (int64_t)y;
+}
+
+double Vector2i::length() const {
+	return Math::sqrt((double)length_squared());
+}
+
 Vector2i Vector2i::operator+(const Vector2i &p_v) const {
 	return Vector2i(x + p_v.x, y + p_v.y);
 }

core/math/vector2.h

@@ -344,6 +344,9 @@ struct Vector2i {
 	bool operator==(const Vector2i &p_vec2) const;
 	bool operator!=(const Vector2i &p_vec2) const;
 
+	int64_t length_squared() const;
+	double length() const;
+
 	real_t aspect() const { return width / (real_t)height; }
 	Vector2i sign() const { return Vector2i(SIGN(x), SIGN(y)); }
 	Vector2i abs() const { return Vector2i(ABS(x), ABS(y)); }

core/math/vector3i.h

@@ -31,6 +31,7 @@
 #ifndef VECTOR3I_H
 #define VECTOR3I_H
 
+#include "core/math/math_funcs.h"
 #include "core/string/ustring.h"
 #include "core/typedefs.h"
 
@@ -65,6 +66,9 @@ struct Vector3i {
 	Vector3i::Axis min_axis_index() const;
 	Vector3i::Axis max_axis_index() const;
 
+	_FORCE_INLINE_ int64_t length_squared() const;
+	_FORCE_INLINE_ double length() const;
+
 	_FORCE_INLINE_ void zero();
 
 	_FORCE_INLINE_ Vector3i abs() const;
@@ -110,6 +114,14 @@ struct Vector3i {
 	}
 };
 
+int64_t Vector3i::length_squared() const {
+	return x * (int64_t)x + y * (int64_t)y + z * (int64_t)z;
+}
+
+double Vector3i::length() const {
+	return Math::sqrt((double)length_squared());
+}
+
 Vector3i Vector3i::abs() const {
 	return Vector3i(ABS(x), ABS(y), ABS(z));
 }

core/variant/variant_call.cpp

@@ -1513,6 +1513,8 @@ static void _register_variant_builtin_methods() {
 	bind_method(Vector2i, aspect, sarray(), varray());
 	bind_method(Vector2i, max_axis_index, sarray(), varray());
 	bind_method(Vector2i, min_axis_index, sarray(), varray());
+	bind_method(Vector2i, length, sarray(), varray());
+	bind_method(Vector2i, length_squared, sarray(), varray());
 	bind_method(Vector2i, sign, sarray(), varray());
 	bind_method(Vector2i, abs, sarray(), varray());
 	bind_method(Vector2i, clamp, sarray("min", "max"), varray());
@@ -1594,6 +1596,8 @@ static void _register_variant_builtin_methods() {
 
 	bind_method(Vector3i, min_axis_index, sarray(), varray());
 	bind_method(Vector3i, max_axis_index, sarray(), varray());
+	bind_method(Vector3i, length, sarray(), varray());
+	bind_method(Vector3i, length_squared, sarray(), varray());
 	bind_method(Vector3i, sign, sarray(), varray());
 	bind_method(Vector3i, abs, sarray(), varray());
 	bind_method(Vector3i, clamp, sarray("min", "max"), varray());

doc/classes/Vector2i.xml

@@ -64,6 +64,19 @@
 				Returns a new vector with all components clamped between the components of [code]min[/code] and [code]max[/code], by running [method @GlobalScope.clamp] on each component.
 			</description>
 		</method>
+		<method name="length" qualifiers="const">
+			<return type="float" />
+			<description>
+				Returns the length (magnitude) of this vector.
+			</description>
+		</method>
+		<method name="length_squared" qualifiers="const">
+			<return type="int" />
+			<description>
+				Returns the squared length (squared magnitude) of this vector.
+				This method runs faster than [method length], so prefer it if you need to compare vectors or need the squared distance for some formula.
+			</description>
+		</method>
 		<method name="max_axis_index" qualifiers="const">
 			<return type="int" />
 			<description>

doc/classes/Vector3i.xml

@@ -58,6 +58,19 @@
 				Returns a new vector with all components clamped between the components of [code]min[/code] and [code]max[/code], by running [method @GlobalScope.clamp] on each component.
 			</description>
 		</method>
+		<method name="length" qualifiers="const">
+			<return type="float" />
+			<description>
+				Returns the length (magnitude) of this vector.
+			</description>
+		</method>
+		<method name="length_squared" qualifiers="const">
+			<return type="int" />
+			<description>
+				Returns the squared length (squared magnitude) of this vector.
+				This method runs faster than [method length], so prefer it if you need to compare vectors or need the squared distance for some formula.
+			</description>
+		</method>
 		<method name="max_axis_index" qualifiers="const">
 			<return type="int" />
 			<description>