Added ability for multiple images to be imported as an atlas

This adds support for groups in the import system, which point to a single file.
Add property hint for saving files in file field

3 files changed, 3 insertions, 2 deletions

diff --git a/core/math/transform_2d.cpp b/core/math/transform_2d.cpp
index 7d00158f3d..1d0387bd45 100644
--- a/core/math/transform_2d.cpp
+++ b/core/math/transform_2d.cpp
@@ -106,7 +106,7 @@ Size2 Transform2D::get_scale() const {
 	return Size2(elements[0].length(), det_sign * elements[1].length());
 }
 
-void Transform2D::set_scale(Size2 &p_scale) {
+void Transform2D::set_scale(const Size2 &p_scale) {
 	elements[0].normalize();
 	elements[1].normalize();
 	elements[0] *= p_scale.x;
diff --git a/core/math/transform_2d.h b/core/math/transform_2d.h
index b9e7a36fb3..c44678674a 100644
--- a/core/math/transform_2d.h
+++ b/core/math/transform_2d.h
@@ -81,7 +81,7 @@ struct Transform2D {
 	real_t basis_determinant() const;
 
 	Size2 get_scale() const;
-	void set_scale(Size2 &p_scale);
+	void set_scale(const Size2 &p_scale);
 
 	_FORCE_INLINE_ const Vector2 &get_origin() const { return elements[2]; }
 	_FORCE_INLINE_ void set_origin(const Vector2 &p_origin) { elements[2] = p_origin; }
diff --git a/core/math/vector2.h b/core/math/vector2.h
index ae2d1ec660..9a214ef9b5 100644
--- a/core/math/vector2.h
+++ b/core/math/vector2.h
@@ -99,6 +99,7 @@ struct Vector2 {
 	Vector2 operator/(const real_t &rvalue) const;
 
 	void operator/=(const real_t &rvalue);
+	void operator/=(const Vector2 &rvalue) { *this = *this / rvalue; }
 
 	Vector2 operator-() const;