arknights/vec.h at master · cznull/arknights · GitHub

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template <int n>
struct doublen
{
	double x[n];
};

template <int n>
double dot(doublen<n> x1, doublen<n> x2);

template <int n>
double norm(doublen<n> x1);

template <int n>
doublen<n> operator-(doublen<n> x1, doublen<n> x2);

template <int n>
doublen<n> operator+(doublen<n> x1, doublen<n> x2);

struct double2 {
	double x, y;
};

struct float2 {
	float x, y;
	float2(float a, float b) :x(a), y(b) {
	}
	float2(double a, double b) :x(a), y(b) {
	}

	float2(double2 vertex) {
		x = vertex.x;
		y = vertex.y;
	}
	float2() {
	}
};

float2 operator*(float s, float2 x);
float2 operator+(float2 x1, float2 x2);

double dot(double2 x1, double2 x2);

double norm(double2 x1);
float norm(float2 x1);


double vol(double2 x1, double2 x2);

double2 operator-(double2 x1, double2 x2);

double2 operator+(double2 x1, double2 x2);

double2 operator*(double s, double2 x);

double2 operator*(double2 x, double s);

double2 operator*(double2 a, double2 b);

double2 operator/(double2 a, double2 b);

struct double3 {
	double x, y, z;
};

double dot(double3 x1, double3 x2);

double norm(double3 x1);

double vol(double3 x1, double3 x2, double3 x3);

double3 cross(double3 x1, double3 x2);

double3 operator-(double3 x1, double3 x2);

double3 operator+(double3 x1, double3 x2);

double3 operator*(double3 x, double s);

struct float3 {
	float x, y, z;
	float3(float a, float b, float c) :x(a),y(b),z(c){
	}
	float3(double a, double b, double c) :x(a), y(b), z(c) {
	}

	float3(double3 vertex) {
		x = vertex.x;
		y = vertex.y;
		z = vertex.z;
	}
	float3() {
	}
};

float dot(float3 x1, float3 x2);

float norm(float3 x1);

float vol(float3 x1, float3 x2, float3 x3);

float3 cross(float3 x1, float3 x2);

float3 operator-(float3 x1, float3 x2);

float3 operator+(float3 x1, float3 x2);

float3 operator*(float3 x, float s);

float3 operator*(float s, float3 x);