diff options
Diffstat (limited to 'core/math/transform_2d.cpp')
-rw-r--r-- | core/math/transform_2d.cpp | 34 |
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 { |