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Add support for interpolating skewed transforms

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Aaron Franke 2023-01-28 17:27:32 -06:00
parent 218bef90af
commit 5f3d3722b2
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2 changed files with 19 additions and 33 deletions
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13
tests/core/math/test_transform_2d.h
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@ -84,6 +84,19 @@ TEST_CASE("[Transform2D] rotation") {
CHECK(orig.rotated_local(phi) == orig * R);
}
TEST_CASE("[Transform2D] Interpolation") {
Transform2D rotate_scale_skew_pos = Transform2D(Math::deg_to_rad(170.0), Vector2(3.6, 8.0), Math::deg_to_rad(20.0), Vector2(2.4, 6.8));
Transform2D rotate_scale_skew_pos_halfway = Transform2D(Math::deg_to_rad(85.0), Vector2(2.3, 4.5), Math::deg_to_rad(10.0), Vector2(1.2, 3.4));
Transform2D interpolated = Transform2D().interpolate_with(rotate_scale_skew_pos, 0.5);
CHECK(interpolated.get_origin().is_equal_approx(rotate_scale_skew_pos_halfway.get_origin()));
CHECK(interpolated.get_rotation() == doctest::Approx(rotate_scale_skew_pos_halfway.get_rotation()));
CHECK(interpolated.get_scale().is_equal_approx(rotate_scale_skew_pos_halfway.get_scale()));
CHECK(interpolated.get_skew() == doctest::Approx(rotate_scale_skew_pos_halfway.get_skew()));
CHECK(interpolated.is_equal_approx(rotate_scale_skew_pos_halfway));
interpolated = rotate_scale_skew_pos.interpolate_with(Transform2D(), 0.5);
CHECK(interpolated.is_equal_approx(rotate_scale_skew_pos_halfway));
}
TEST_CASE("[Transform2D] Finite number checks") {
const Vector2 x(0, 1);
const Vector2 infinite(NAN, NAN);