Rename `str2var` to `str_to_var` and similar

Affects the Math class, a good chunk of the audio code, and a lot of other miscellaneous classes, too.

- `var2str` -> `var_to_str`
- `str2var` -> `str_to_var`
- `bytes2var` -> `bytes_to_var`
- `bytes2var_with_objects` -> `bytes_to_var_with_objects`
- `var2bytes` -> `var_to_bytes`
- `var2bytes_with_objects` -> `var_to_bytes_with_objects`
- `linear2db` -> `linear_to_db`
- `db2linear` -> `db_to_linear`
- `deg2rad` -> `deg_to_rad`
- `rad2deg` -> `rad_to_deg`

- `dict2inst` -> `dict_to_inst`
- `inst2dict` -> `inst_to_dict`

4 files changed, 14 insertions, 14 deletions

diff --git a/core/math/audio_frame.h b/core/math/audio_frame.h
index b3d63c0094..1a80faaa12 100644
--- a/core/math/audio_frame.h
+++ b/core/math/audio_frame.h
@@ -48,7 +48,7 @@ static inline float undenormalise(volatile float f) {
 }
 
 static const float AUDIO_PEAK_OFFSET = 0.0000000001f;
-static const float AUDIO_MIN_PEAK_DB = -200.0f; // linear2db(AUDIO_PEAK_OFFSET)
+static const float AUDIO_MIN_PEAK_DB = -200.0f; // linear_to_db(AUDIO_PEAK_OFFSET)
 
 struct AudioFrame {
 	//left and right samples
diff --git a/core/math/math_funcs.h b/core/math/math_funcs.h
index 463e119add..fd20440663 100644
--- a/core/math/math_funcs.h
+++ b/core/math/math_funcs.h
@@ -229,11 +229,11 @@ public:
 		return value;
 	}
 
-	static _ALWAYS_INLINE_ double deg2rad(double p_y) { return p_y * (Math_PI / 180.0); }
-	static _ALWAYS_INLINE_ float deg2rad(float p_y) { return p_y * (float)(Math_PI / 180.0); }
+	static _ALWAYS_INLINE_ double deg_to_rad(double p_y) { return p_y * (Math_PI / 180.0); }
+	static _ALWAYS_INLINE_ float deg_to_rad(float p_y) { return p_y * (float)(Math_PI / 180.0); }
 
-	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 * (float)(180.0 / Math_PI); }
+	static _ALWAYS_INLINE_ double rad_to_deg(double p_y) { return p_y * (180.0 / Math_PI); }
+	static _ALWAYS_INLINE_ float rad_to_deg(float p_y) { return p_y * (float)(180.0 / Math_PI); }
 
 	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; }
@@ -331,11 +331,11 @@ public:
 	static _ALWAYS_INLINE_ double move_toward(double p_from, double p_to, double p_delta) { return abs(p_to - p_from) <= p_delta ? p_to : p_from + SIGN(p_to - p_from) * p_delta; }
 	static _ALWAYS_INLINE_ float move_toward(float p_from, float p_to, float p_delta) { return abs(p_to - p_from) <= p_delta ? p_to : p_from + SIGN(p_to - p_from) * p_delta; }
 
-	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) * (float)8.6858896380650365530225783783321; }
+	static _ALWAYS_INLINE_ double linear_to_db(double p_linear) { return Math::log(p_linear) * 8.6858896380650365530225783783321; }
+	static _ALWAYS_INLINE_ float linear_to_db(float p_linear) { return Math::log(p_linear) * (float)8.6858896380650365530225783783321; }
 
-	static _ALWAYS_INLINE_ double db2linear(double p_db) { return Math::exp(p_db * 0.11512925464970228420089957273422); }
-	static _ALWAYS_INLINE_ float db2linear(float p_db) { return Math::exp(p_db * (float)0.11512925464970228420089957273422); }
+	static _ALWAYS_INLINE_ double db_to_linear(double p_db) { return Math::exp(p_db * 0.11512925464970228420089957273422); }
+	static _ALWAYS_INLINE_ float db_to_linear(float p_db) { return Math::exp(p_db * (float)0.11512925464970228420089957273422); }
 
 	static _ALWAYS_INLINE_ double round(double p_val) { return ::round(p_val); }
 	static _ALWAYS_INLINE_ float round(float p_val) { return ::roundf(p_val); }
diff --git a/core/math/projection.cpp b/core/math/projection.cpp
index edf8bf36cd..863fe6ee79 100644
--- a/core/math/projection.cpp
+++ b/core/math/projection.cpp
@@ -255,7 +255,7 @@ void Projection::set_perspective(real_t p_fovy_degrees, real_t p_aspect, real_t
 	}
 
 	real_t sine, cotangent, deltaZ;
-	real_t radians = Math::deg2rad(p_fovy_degrees / 2.0);
+	real_t radians = Math::deg_to_rad(p_fovy_degrees / 2.0);
 
 	deltaZ = p_z_far - p_z_near;
 	sine = Math::sin(radians);
@@ -282,7 +282,7 @@ void Projection::set_perspective(real_t p_fovy_degrees, real_t p_aspect, real_t
 
 	real_t left, right, modeltranslation, ymax, xmax, frustumshift;
 
-	ymax = p_z_near * tan(Math::deg2rad(p_fovy_degrees / 2.0));
+	ymax = p_z_near * tan(Math::deg_to_rad(p_fovy_degrees / 2.0));
 	xmax = ymax * p_aspect;
 	frustumshift = (p_intraocular_dist / 2.0) * p_z_near / p_convergence_dist;
 
@@ -816,7 +816,7 @@ real_t Projection::get_fov() const {
 	right_plane.normalize();
 
 	if ((matrix[8] == 0) && (matrix[9] == 0)) {
-		return Math::rad2deg(Math::acos(Math::abs(right_plane.normal.x))) * 2.0;
+		return Math::rad_to_deg(Math::acos(Math::abs(right_plane.normal.x))) * 2.0;
 	} else {
 		// our frustum is asymmetrical need to calculate the left planes angle separately..
 		Plane left_plane = Plane(matrix[3] + matrix[0],
@@ -825,7 +825,7 @@ real_t Projection::get_fov() const {
 				matrix[15] + matrix[12]);
 		left_plane.normalize();
 
-		return Math::rad2deg(Math::acos(Math::abs(left_plane.normal.x))) + Math::rad2deg(Math::acos(Math::abs(right_plane.normal.x)));
+		return Math::rad_to_deg(Math::acos(Math::abs(left_plane.normal.x))) + Math::rad_to_deg(Math::acos(Math::abs(right_plane.normal.x)));
 	}
 }
 
diff --git a/core/math/projection.h b/core/math/projection.h
index a3d2d7720b..f149d307b3 100644
--- a/core/math/projection.h
+++ b/core/math/projection.h
@@ -96,7 +96,7 @@ struct Projection {
 	Projection jitter_offseted(const Vector2 &p_offset) const;
 
 	static real_t get_fovy(real_t p_fovx, real_t p_aspect) {
-		return Math::rad2deg(Math::atan(p_aspect * Math::tan(Math::deg2rad(p_fovx) * 0.5)) * 2.0);
+		return Math::rad_to_deg(Math::atan(p_aspect * Math::tan(Math::deg_to_rad(p_fovx) * 0.5)) * 2.0);
 	}
 
 	real_t get_z_far() const;