diff options
| -rw-r--r-- | core/math/math_funcs.h | 10 | ||||
| -rw-r--r-- | modules/gdscript/gd_functions.cpp | 30 | ||||
| -rw-r--r-- | modules/gdscript/gd_functions.h | 2 |
3 files changed, 40 insertions, 2 deletions
diff --git a/core/math/math_funcs.h b/core/math/math_funcs.h index 45509a0808..2ce9a88622 100644 --- a/core/math/math_funcs.h +++ b/core/math/math_funcs.h @@ -153,8 +153,14 @@ public: static _ALWAYS_INLINE_ double rad2deg(double p_y) { return p_y * 180.0 / Math_PI; } static _ALWAYS_INLINE_ float rad2deg(float p_y) { return p_y * 180.0 / Math_PI; } - static _ALWAYS_INLINE_ double lerp(double a, double b, double c) { return a + (b - a) * c; } - static _ALWAYS_INLINE_ float lerp(float a, float b, float c) { return a + (b - a) * c; } + 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 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); } + + static _ALWAYS_INLINE_ double range_lerp(double p_value, double p_istart, double p_istop, double p_ostart, double p_ostop) { return Math::lerp(p_ostart, p_ostop, Math::inverse_lerp(p_istart, p_istop, p_value)); } + static _ALWAYS_INLINE_ float range_lerp(float p_value, float p_istart, float p_istop, float p_ostart, float p_ostop) { return Math::lerp(p_ostart, p_ostop, Math::inverse_lerp(p_istart, p_istop, p_value)); } static _ALWAYS_INLINE_ double linear2db(double p_linear) { return Math::log(p_linear) * 8.6858896380650365530225783783321; } static _ALWAYS_INLINE_ float linear2db(float p_linear) { return Math::log(p_linear) * 8.6858896380650365530225783783321; } diff --git a/modules/gdscript/gd_functions.cpp b/modules/gdscript/gd_functions.cpp index 209bdadd67..e0681382e0 100644 --- a/modules/gdscript/gd_functions.cpp +++ b/modules/gdscript/gd_functions.cpp @@ -70,6 +70,8 @@ const char *GDFunctions::get_func_name(Function p_func) { "decimals", "stepify", "lerp", + "inverse_lerp", + "range_lerp", "dectime", "randomize", "randi", @@ -326,6 +328,22 @@ void GDFunctions::call(Function p_func, const Variant **p_args, int p_arg_count, VALIDATE_ARG_NUM(2); r_ret = Math::lerp((double)*p_args[0], (double)*p_args[1], (double)*p_args[2]); } break; + case MATH_INVERSE_LERP: { + VALIDATE_ARG_COUNT(3); + VALIDATE_ARG_NUM(0); + VALIDATE_ARG_NUM(1); + VALIDATE_ARG_NUM(2); + r_ret = Math::inverse_lerp((double)*p_args[0], (double)*p_args[1], (double)*p_args[2]); + } break; + case MATH_RANGE_LERP: { + VALIDATE_ARG_COUNT(5); + VALIDATE_ARG_NUM(0); + VALIDATE_ARG_NUM(1); + VALIDATE_ARG_NUM(2); + VALIDATE_ARG_NUM(3); + VALIDATE_ARG_NUM(4); + r_ret = Math::range_lerp((double)*p_args[0], (double)*p_args[1], (double)*p_args[2], (double)*p_args[3], (double)*p_args[4]); + } break; case MATH_DECTIME: { VALIDATE_ARG_COUNT(3); VALIDATE_ARG_NUM(0); @@ -1252,6 +1270,8 @@ bool GDFunctions::is_deterministic(Function p_func) { case MATH_DECIMALS: case MATH_STEPIFY: case MATH_LERP: + case MATH_INVERSE_LERP: + case MATH_RANGE_LERP: case MATH_DECTIME: case MATH_DEG2RAD: case MATH_RAD2DEG: @@ -1420,6 +1440,16 @@ MethodInfo GDFunctions::get_info(Function p_func) { mi.return_val.type = Variant::REAL; return mi; } break; + case MATH_INVERSE_LERP: { + MethodInfo mi("inverse_lerp", PropertyInfo(Variant::REAL, "from"), PropertyInfo(Variant::REAL, "to"), PropertyInfo(Variant::REAL, "value")); + mi.return_val.type = Variant::REAL; + return mi; + } break; + case MATH_RANGE_LERP: { + MethodInfo mi("range_lerp", PropertyInfo(Variant::REAL, "value"), PropertyInfo(Variant::REAL, "istart"), PropertyInfo(Variant::REAL, "istop"), PropertyInfo(Variant::REAL, "ostart"), PropertyInfo(Variant::REAL, "ostop")); + mi.return_val.type = Variant::REAL; + return mi; + } break; case MATH_DECTIME: { MethodInfo mi("dectime", PropertyInfo(Variant::REAL, "value"), PropertyInfo(Variant::REAL, "amount"), PropertyInfo(Variant::REAL, "step")); mi.return_val.type = Variant::REAL; diff --git a/modules/gdscript/gd_functions.h b/modules/gdscript/gd_functions.h index 93cb524118..11dfbd473c 100644 --- a/modules/gdscript/gd_functions.h +++ b/modules/gdscript/gd_functions.h @@ -62,6 +62,8 @@ public: MATH_DECIMALS, MATH_STEPIFY, MATH_LERP, + MATH_INVERSE_LERP, + MATH_RANGE_LERP, MATH_DECTIME, MATH_RANDOMIZE, MATH_RAND, |