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-rw-r--r--core/math/transform_2d.cpp34
1 files changed, 24 insertions, 10 deletions
diff --git a/core/math/transform_2d.cpp b/core/math/transform_2d.cpp
index bb8bf9f569..226076029b 100644
--- a/core/math/transform_2d.cpp
+++ b/core/math/transform_2d.cpp
@@ -217,34 +217,48 @@ Transform2D Transform2D::operator*(const Transform2D &p_transform) const {
return t;
}
-Transform2D Transform2D::scaled(const Size2 &p_scale) const {
+Transform2D Transform2D::basis_scaled(const Size2 &p_scale) const {
Transform2D copy = *this;
- copy.scale(p_scale);
+ copy.scale_basis(p_scale);
return copy;
}
-Transform2D Transform2D::basis_scaled(const Size2 &p_scale) const {
+Transform2D Transform2D::scaled(const Size2 &p_scale) const {
+ // Equivalent to left multiplication
Transform2D copy = *this;
- copy.scale_basis(p_scale);
+ copy.scale(p_scale);
return copy;
}
+Transform2D Transform2D::scaled_local(const Size2 &p_scale) const {
+ // Equivalent to right multiplication
+ return Transform2D(columns[0] * p_scale.x, columns[1] * p_scale.y, columns[2]);
+}
+
Transform2D Transform2D::untranslated() const {
Transform2D copy = *this;
copy.columns[2] = Vector2();
return copy;
}
+Transform2D Transform2D::translated(const Vector2 &p_offset) const {
+ // Equivalent to left multiplication
+ return Transform2D(columns[0], columns[1], columns[2] + p_offset);
+}
+
Transform2D Transform2D::translated_local(const Vector2 &p_offset) const {
- Transform2D copy = *this;
- copy.translate_local(p_offset);
- return copy;
+ // Equivalent to right multiplication
+ return Transform2D(columns[0], columns[1], columns[2] + basis_xform(p_offset));
}
Transform2D Transform2D::rotated(const real_t p_angle) const {
- Transform2D copy = *this;
- copy.rotate(p_angle);
- return copy;
+ // Equivalent to left multiplication
+ return Transform2D(p_angle, Vector2()) * (*this);
+}
+
+Transform2D Transform2D::rotated_local(const real_t p_angle) const {
+ // Equivalent to right multiplication
+ return (*this) * Transform2D(p_angle, Vector2()); // Could be optimized, because origin transform can be skipped.
}
real_t Transform2D::basis_determinant() const {