godot-cpp/include/core/Vector2.hpp

233 lines
4.8 KiB
C++

#ifndef VECTOR2_H
#define VECTOR2_H
#include <gdnative/vector2.h>
#include "Defs.hpp"
#include <cmath>
namespace godot {
class String;
struct Vector2 {
union {
real_t x;
real_t width;
};
union {
real_t y;
real_t height;
};
inline Vector2(real_t p_x, real_t p_y) {
x = p_x;
y = p_y;
}
inline Vector2() {
x = 0;
y = 0;
}
inline real_t &operator[](int p_idx) {
return p_idx ? y : x;
}
inline const real_t &operator[](int p_idx) const {
return p_idx ? y : x;
}
inline Vector2 operator+(const Vector2 &p_v) const {
return Vector2(x + p_v.x, y + p_v.y);
}
inline void operator+=(const Vector2 &p_v) {
x += p_v.x;
y += p_v.y;
}
inline Vector2 operator-(const Vector2 &p_v) const {
return Vector2(x - p_v.x, y - p_v.y);
}
inline void operator-=(const Vector2 &p_v) {
x -= p_v.x;
y -= p_v.y;
}
inline Vector2 operator*(const Vector2 &p_v1) const {
return Vector2(x * p_v1.x, y * p_v1.y);
}
inline Vector2 operator*(const real_t &rvalue) const {
return Vector2(x * rvalue, y * rvalue);
}
inline void operator*=(const real_t &rvalue) {
x *= rvalue;
y *= rvalue;
}
inline void operator*=(const Vector2 &rvalue) {
*this = *this * rvalue;
}
inline Vector2 operator/(const Vector2 &p_v1) const {
return Vector2(x / p_v1.x, y / p_v1.y);
}
inline Vector2 operator/(const real_t &rvalue) const {
return Vector2(x / rvalue, y / rvalue);
}
inline void operator/=(const real_t &rvalue) {
x /= rvalue;
y /= rvalue;
}
inline Vector2 operator-() const {
return Vector2(-x, -y);
}
bool operator==(const Vector2 &p_vec2) const;
bool operator!=(const Vector2 &p_vec2) const;
inline bool operator<(const Vector2 &p_vec2) const { return (x == p_vec2.x) ? (y < p_vec2.y) : (x < p_vec2.x); }
inline bool operator<=(const Vector2 &p_vec2) const { return (x == p_vec2.x) ? (y <= p_vec2.y) : (x <= p_vec2.x); }
inline void normalize() {
real_t l = x * x + y * y;
if (l != 0) {
l = sqrt(l);
x /= l;
y /= l;
}
}
inline Vector2 normalized() const {
Vector2 v = *this;
v.normalize();
return v;
}
inline real_t length() const {
return sqrt(x * x + y * y);
}
inline real_t length_squared() const {
return x * x + y * y;
}
inline real_t distance_to(const Vector2 &p_vector2) const {
return sqrt((x - p_vector2.x) * (x - p_vector2.x) + (y - p_vector2.y) * (y - p_vector2.y));
}
inline real_t distance_squared_to(const Vector2 &p_vector2) const {
return (x - p_vector2.x) * (x - p_vector2.x) + (y - p_vector2.y) * (y - p_vector2.y);
}
inline real_t angle_to(const Vector2 &p_vector2) const {
return atan2(cross(p_vector2), dot(p_vector2));
}
inline real_t angle_to_point(const Vector2 &p_vector2) const {
return atan2(y - p_vector2.y, x - p_vector2.x);
}
inline real_t dot(const Vector2 &p_other) const {
return x * p_other.x + y * p_other.y;
}
inline real_t cross(const Vector2 &p_other) const {
return x * p_other.y - y * p_other.x;
}
inline Vector2 cross(real_t p_other) const {
return Vector2(p_other * y, -p_other * x);
}
Vector2 project(const Vector2 &p_vec) const;
Vector2 plane_project(real_t p_d, const Vector2 &p_vec) const;
Vector2 clamped(real_t p_len) const;
static inline Vector2 linear_interpolate(const Vector2 &p_a, const Vector2 &p_b, real_t p_t) {
Vector2 res = p_a;
res.x += (p_t * (p_b.x - p_a.x));
res.y += (p_t * (p_b.y - p_a.y));
return res;
}
inline Vector2 linear_interpolate(const Vector2 &p_b, real_t p_t) const {
Vector2 res = *this;
res.x += (p_t * (p_b.x - x));
res.y += (p_t * (p_b.y - y));
return res;
}
Vector2 cubic_interpolate(const Vector2 &p_b, const Vector2 &p_pre_a, const Vector2 &p_post_b, real_t p_t) const;
inline Vector2 slide(const Vector2 &p_vec) const {
return p_vec - *this * this->dot(p_vec);
}
inline Vector2 bounce(const Vector2 &p_normal) const {
return -reflect(p_normal);
}
inline Vector2 reflect(const Vector2 &p_normal) const {
return -(*this -p_normal * this->dot(p_normal) * 2.0);
}
inline real_t angle() const {
return atan2(y, x);
}
inline void set_rotation(real_t p_radians) {
x = cosf(p_radians);
y = sinf(p_radians);
}
inline Vector2 abs() const {
return Vector2(fabs(x), fabs(y));
}
inline Vector2 rotated(real_t p_by) const {
Vector2 v;
v.set_rotation(angle() + p_by);
v *= length();
return v;
}
inline Vector2 tangent() const {
return Vector2(y, -x);
}
inline Vector2 floor() const {
return Vector2(::floor(x), ::floor(y));
}
inline Vector2 snapped(const Vector2 &p_by) const {
return Vector2(
p_by.x != 0 ? ::floor(x / p_by.x + 0.5) * p_by.x : x,
p_by.y != 0 ? ::floor(y / p_by.y + 0.5) * p_by.y : y);
}
inline real_t aspect() const { return width / height; }
operator String() const;
};
inline Vector2 operator*(real_t p_scalar, const Vector2 &p_vec) {
return p_vec * p_scalar;
}
} // namespace godot
#endif // VECTOR2_H