diff options
Diffstat (limited to 'core/math/math_funcs.h')
| -rw-r--r-- | core/math/math_funcs.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/core/math/math_funcs.h b/core/math/math_funcs.h index b6398712e4..b8b5151802 100644 --- a/core/math/math_funcs.h +++ b/core/math/math_funcs.h @@ -215,6 +215,17 @@ public: static _ALWAYS_INLINE_ double lerp(double p_from, double p_to, double p_weight) { return p_from + (p_to - p_from) * p_weight; } static _ALWAYS_INLINE_ float lerp(float p_from, float p_to, float p_weight) { return p_from + (p_to - p_from) * p_weight; } + static _ALWAYS_INLINE_ double lerp_angle(double p_from, double p_to, double p_weight) { + double difference = fmod(p_to - p_from, Math_TAU); + double distance = fmod(2.0 * difference, Math_TAU) - difference; + return p_from + distance * p_weight; + } + static _ALWAYS_INLINE_ float lerp_angle(float p_from, float p_to, float p_weight) { + float difference = fmod(p_to - p_from, (float)Math_TAU); + float distance = fmod(2.0f * difference, (float)Math_TAU) - difference; + return p_from + distance * p_weight; + } + static _ALWAYS_INLINE_ double inverse_lerp(double p_from, double p_to, double p_value) { return (p_value - p_from) / (p_to - p_from); } static _ALWAYS_INLINE_ float inverse_lerp(float p_from, float p_to, float p_value) { return (p_value - p_from) / (p_to - p_from); } |