diff options
Diffstat (limited to 'include/godot_cpp/core/math.hpp')
| -rw-r--r-- | include/godot_cpp/core/math.hpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/godot_cpp/core/math.hpp b/include/godot_cpp/core/math.hpp index ec22237..84f67b0 100644 --- a/include/godot_cpp/core/math.hpp +++ b/include/godot_cpp/core/math.hpp @@ -278,6 +278,21 @@ inline float lerp_angle(float p_from, float p_to, float p_weight) { return p_from + distance * p_weight; } +inline double cubic_interpolate(double p_from, double p_to, double p_pre, double p_post, double p_weight) { + return 0.5 * + ((p_from * 2.0) + + (-p_pre + p_to) * p_weight + + (2.0 * p_pre - 5.0 * p_from + 4.0 * p_to - p_post) * (p_weight * p_weight) + + (-p_pre + 3.0 * p_from - 3.0 * p_to + p_post) * (p_weight * p_weight * p_weight)); +} +inline float cubic_interpolate(float p_from, float p_to, float p_pre, float p_post, float p_weight) { + return 0.5f * + ((p_from * 2.0f) + + (-p_pre + p_to) * p_weight + + (2.0f * p_pre - 5.0f * p_from + 4.0f * p_to - p_post) * (p_weight * p_weight) + + (-p_pre + 3.0f * p_from - 3.0f * p_to + p_post) * (p_weight * p_weight * p_weight)); +} + template <typename T> inline T clamp(T x, T minv, T maxv) { if (x < minv) { |