VMF Base

// ===========
// objects.h
// ===========

#ifndef OBJECTS_H_INCLUDED
#define OBJECTS_H_INCLUDED

#include <iostream>
using namespace std;

class Vector
{
public:
    double x, y, z, d = 0;
    Vector (const double& = 0, const double& = 0, const double& = 0);
    bool operator == (const Vector&);
    Vector operator + (const Vector&);
    Vector operator - (const Vector&);
    Vector operator * (const double&);
    Vector operator / (const double&);
    Vector operator ^ (const Vector&);
    double operator * (const Vector&);
};

class Plane
{
public:
    Vector a, b, c, n;
    Plane (const Vector&, const Vector&, const Vector&);

private:
    void getNormal ();
};

ostream& operator << (ostream&, const Vector&);
Vector norm (Vector&);

#endif // OBJECTS_H_INCLUDED





// =============
// objects.cpp
// =============

#include <cmath>
#include <iostream>
#include "objects.h"
using namespace std;

// With a Vector type, you can initialize, compare, add and subtract
// other Vectors, multiply and divide by scalars, do a cross product (^)
// and dot product (*) between two Vectors, normalize a Vector, and
// print out a Vector directly to the console.

Vector::Vector (const double& a, const double& b, const double& c) {
    x = a; y = b; z = c; }

bool Vector::operator == (const Vector& param) {
    return ((x == param.x) && (y == param.y) && (z == param.z)); }

ostream& operator << (ostream& out, const Vector& param) {
    return out << "(" << param.x << ", " << param.y << ", " << param.z << ")"; }

Vector Vector::operator + (const Vector& param) {
    return Vector (x + param.x, y + param.y, z + param.z); }

Vector Vector::operator - (const Vector& param) {
    return Vector (x - param.x, y - param.y, z - param.z); }

Vector Vector::operator * (const double& param) {
    return Vector (x * param, y * param, z * param); }

Vector Vector::operator / (const double& param) {
    return Vector (x / param, y / param, z / param); }

double Vector::operator * (const Vector& param) {
        return (x * param.x) + (y * param.y) + (z * param.z); }

Vector Vector::operator ^ (const Vector& param)
{
    Vector temp;
    temp.x = (y * param.z) - (z * param.y);
    temp.y = (z * param.x) - (x * param.z);
    temp.z = (x * param.y) - (y * param.x);
    return temp;
}

Vector norm (Vector& param) {
        return param / sqrt(param * param); }

// A Plane type holds the Vectors of three points that make up
// the Plane. It then calculates its normal and assigns that to d.

Plane::Plane (const Vector& d, const Vector& e, const Vector& f) {
    a = d; b = e; c = f; getNormal (); }

void Plane::getNormal ()
{
    Vector temp =
    (
                Vector (b.x - a.x, b.y - a.y, b.z - a.z) ^
                Vector (c.x - b.x, c.y - b.y, c.z - b.z)
        );

    n = norm(temp);
    n.d = n * a;
}





// ==========
// main.cpp
// ==========

#include <iostream>
#include "objects.h"
using namespace std;

// A set of planes used for debugging. They come from a VMF file.

Plane plane[7] =
{
    Plane ({-801, 220, -192}, {-568, -460, -192}, {184, -460, -192}),
    Plane ({-192, 640, 576}, {417, 220, 576}, {184, -460, 576}),
    Plane ({-192, 640, -192}, {417, 220, -192}, {417, 220, 576}),
    Plane ({417, 220, -192}, {184, -460, -192}, {184, -460, 576}),
    Plane ({184, -460, -192}, {-568, -460, -192}, {-568, -460, 576}),
    Plane ({-568, -460, -192}, {-801, 220, -192}, {-801, 220, 576}),
    Plane ({-801, 220, -192}, {-192, 640, -192}, {-192, 640, 576})
};

int main ()
{
        return 0;
}