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Add rotate_toward and angle_difference to GDScript and C#

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This commit is contained in:
etti 2023-09-04 12:04:40 +02:00
parent 0ca8542329
commit 3a39de4e2f
6 changed files with 158 additions and 12 deletions
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36
tests/core/math/test_math_funcs.h
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@ -360,6 +360,25 @@ TEST_CASE_TEMPLATE("[Math] remap", T, float, double) {
CHECK(Math::remap((T)-250.0, (T)-100.0, (T)-200.0, (T)0.0, (T)-1000.0) == doctest::Approx((T)-1500.0));
}
TEST_CASE_TEMPLATE("[Math] angle_difference", T, float, double) {
// Loops around, should return 0.0.
CHECK(Math::angle_difference((T)0.0, (T)Math_TAU) == doctest::Approx((T)0.0));
CHECK(Math::angle_difference((T)Math_PI, (T)-Math_PI) == doctest::Approx((T)0.0));
CHECK(Math::angle_difference((T)0.0, (T)Math_TAU * (T)4.0) == doctest::Approx((T)0.0));
// Rotation is clockwise, so it should return -PI.
CHECK(Math::angle_difference((T)0.0, (T)Math_PI) == doctest::Approx((T)-Math_PI));
CHECK(Math::angle_difference((T)0.0, (T)-Math_PI) == doctest::Approx((T)Math_PI));
CHECK(Math::angle_difference((T)Math_PI, (T)0.0) == doctest::Approx((T)Math_PI));
CHECK(Math::angle_difference((T)-Math_PI, (T)0.0) == doctest::Approx((T)-Math_PI));
CHECK(Math::angle_difference((T)0.0, (T)3.0) == doctest::Approx((T)3.0));
CHECK(Math::angle_difference((T)1.0, (T)-2.0) == doctest::Approx((T)-3.0));
CHECK(Math::angle_difference((T)-1.0, (T)2.0) == doctest::Approx((T)3.0));
CHECK(Math::angle_difference((T)-2.0, (T)-4.5) == doctest::Approx((T)-2.5));
CHECK(Math::angle_difference((T)100.0, (T)102.5) == doctest::Approx((T)2.5));
}
TEST_CASE_TEMPLATE("[Math] lerp_angle", T, float, double) {
// Counter-clockwise rotation.
CHECK(Math::lerp_angle((T)0.24 * Math_TAU, 0.75 * Math_TAU, 0.5) == doctest::Approx((T)-0.005 * Math_TAU));
@ -390,6 +409,23 @@ TEST_CASE_TEMPLATE("[Math] move_toward", T, float, double) {
CHECK(Math::move_toward(-2.0, -5.0, 4.0) == doctest::Approx((T)-5.0));
}
TEST_CASE_TEMPLATE("[Math] rotate_toward", T, float, double) {
// Rotate toward.
CHECK(Math::rotate_toward((T)0.0, (T)Math_PI * (T)0.75, (T)1.5) == doctest::Approx((T)1.5));
CHECK(Math::rotate_toward((T)-2.0, (T)1.0, (T)2.5) == doctest::Approx((T)0.5));
CHECK(Math::rotate_toward((T)-2.0, (T)Math_PI, (T)Math_PI) == doctest::Approx((T)-Math_PI));
CHECK(Math::rotate_toward((T)1.0, (T)Math_PI, (T)20.0) == doctest::Approx((T)Math_PI));
// Rotate away.
CHECK(Math::rotate_toward((T)0.0, (T)0.0, (T)-1.5) == doctest::Approx((T)-1.5));
CHECK(Math::rotate_toward((T)0.0, (T)0.0, (T)-Math_PI) == doctest::Approx((T)-Math_PI));
CHECK(Math::rotate_toward((T)3.0, (T)Math_PI, (T)-Math_PI) == doctest::Approx((T)0.0));
CHECK(Math::rotate_toward((T)2.0, (T)Math_PI, (T)-1.5) == doctest::Approx((T)0.5));
CHECK(Math::rotate_toward((T)1.0, (T)2.0, (T)-0.5) == doctest::Approx((T)0.5));
CHECK(Math::rotate_toward((T)2.5, (T)2.0, (T)-0.5) == doctest::Approx((T)3.0));
CHECK(Math::rotate_toward((T)-1.0, (T)1.0, (T)-1.0) == doctest::Approx((T)-2.0));
}
TEST_CASE_TEMPLATE("[Math] smoothstep", T, float, double) {
CHECK(Math::smoothstep((T)0.0, (T)2.0, (T)-5.0) == doctest::Approx((T)0.0));
CHECK(Math::smoothstep((T)0.0, (T)2.0, (T)0.5) == doctest::Approx((T)0.15625));