physics_math.h

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#pragma once
 
#include <box2d/box2d.h>
#include <engine/physics/world/physics_world.h>
#include <engine/public/util/point.h>
#include <engine/public/util/vector3.h>
 
namespace PhysicsMath {
static constexpr float pi = B2_PI;
static constexpr float circle_divisor = 180.0f;
 
float to_meters(float pixels, float ratio) noexcept;
 
float to_pixels(float meters, float ratio) noexcept;
 
float to_radians(float degrees) noexcept;
 
float to_degrees(float radians) noexcept;
 
float convert_box2d_angle_to_radians(float sine, float cosine) noexcept;
 
float convert_radians_to_box2d_sine(float radians) noexcept;
 
float convert_radians_to_box2d_cosine(float radians) noexcept;
 
float distance_between_points(const Point& a, const Point& b) noexcept;
 
float dx_between_points(const Point& a, const Point& b) noexcept;
 
float dy_between_points(const Point& a, const Point& b) noexcept;
 
Vector3 box2d_vec_to_pixel_vec3(const Vector3& v, bool to_pixels = true);
 
Vector3 vec3_to_box2d_vec3(const Vector3& v, bool from_pixels = true);
 
float box2d_to_pixels(float length) noexcept;
 
float pixels_to_box2d(float length) noexcept;
 
Vector3 physics_vec3_to_transform_pixel_vec3(const Vector3& v, float width,
                                             float height) noexcept;
};  // namespace PhysicsMath