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97 lines
1.9 KiB
C++
97 lines
1.9 KiB
C++
#pragma once
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#include <cmath>
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#include <iostream>
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struct Vector3f {
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float x;
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float y;
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float z;
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};
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Vector3f operator+(const Vector3f& a, const Vector3f& b) {
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Vector3f result = {a.x + b.x, a.y + b.y, a.z + b.z};
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return result;
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}
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Vector3f operator-(const Vector3f& a, const Vector3f& b) {
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Vector3f result = {a.x - b.x, a.y - b.y, a.z - b.z};
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return result;
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}
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Vector3f operator*(const Vector3f& a, float f) {
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Vector3f result = {f * a.x, f * a.y, f * a.z};
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return result;
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}
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Vector3f operator*(float f, const Vector3f& a) {
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Vector3f result = {f * a.x, f * a.y, f * a.z};
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return result;
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}
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int operator*(const Vector3f& a, const Vector3f& b) {
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return a.x * b.x + a.y * b.y + a.z * b.z;
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}
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Vector3f operator/(const Vector3f& a, float f) {
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Vector3f result = {a.x / f, a.y / f, a.z / f};
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return result;
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}
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Vector3f operator+(const Vector3f& a) {
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return a;
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}
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Vector3f operator-(const Vector3f& a) {
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Vector3f result = {-a.x, -a.y, -a.z};
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return result;
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}
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bool operator==(const Vector3f& a, const Vector3f& b) {
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if (a.x == b.x && a.y == b.y && a.z == b.z) {
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return true;
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}
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return false;
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}
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bool operator!=(const Vector3f& a, const Vector3f& b) {
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return not (a == b);
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}
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void operator+=(Vector3f& a, const Vector3f& b) {
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a = a + b;
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}
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void operator-=(Vector3f& a, const Vector3f& b) {
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a = a - b;
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}
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void operator*=(Vector3f& a, float f) {
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a = f * a;
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}
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void operator/=(Vector3f& a, float f) {
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a = a / f;
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}
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float squared_norm(const Vector3f& a) {
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return a * a;
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}
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float norm(const Vector3f& a) {
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return sqrt(squared_norm(a));
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}
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void normalize(Vector3f& a) {
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a /= norm(a);
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}
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std::istream& operator>>(std::istream& in, Vector3f& a) {
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in >> a.x >> a.y >> a.z;
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return in;
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}
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std::ostream& operator<<(std::ostream& out, const Vector3f& a) {
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out << "(" << a.x << ", " << a.y << ", " << a.z << ")";
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return out;
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}
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