Merge pull request #25831 from aaronfranke/mono-trans-rot-scale

[Core] [Mono] Transform2D rotation and scale fixes

1 files changed, 10 insertions, 2 deletions

diff --git a/core/math/transform_2d.cpp b/core/math/transform_2d.cpp
index 295e60babb..7d00158f3d 100644
--- a/core/math/transform_2d.cpp
+++ b/core/math/transform_2d.cpp
@@ -80,13 +80,14 @@ real_t Transform2D::get_rotation() const {
 }
 
 void Transform2D::set_rotation(real_t p_rot) {
-
+	Size2 scale = get_scale();
 	real_t cr = Math::cos(p_rot);
 	real_t sr = Math::sin(p_rot);
 	elements[0][0] = cr;
 	elements[0][1] = sr;
 	elements[1][0] = -sr;
 	elements[1][1] = cr;
+	set_scale(scale);
 }
 
 Transform2D::Transform2D(real_t p_rot, const Vector2 &p_pos) {
@@ -101,10 +102,17 @@ Transform2D::Transform2D(real_t p_rot, const Vector2 &p_pos) {
 }
 
 Size2 Transform2D::get_scale() const {
-	real_t det_sign = basis_determinant() > 0 ? 1 : -1;
+	real_t det_sign = SGN(basis_determinant());
 	return Size2(elements[0].length(), det_sign * elements[1].length());
 }
 
+void Transform2D::set_scale(Size2 &p_scale) {
+	elements[0].normalize();
+	elements[1].normalize();
+	elements[0] *= p_scale.x;
+	elements[1] *= p_scale.y;
+}
+
 void Transform2D::scale(const Size2 &p_scale) {
 	scale_basis(p_scale);
 	elements[2] *= p_scale;