Vector3.h

Ir a la documentación de este archivo.

 
/*
 * MIT License
 *
 * Copyright (c) 2024 Roberto Charreton
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * In addition, any project or software that uses this library or class must include
 * the following acknowledgment in the credits:
 *
 * "This project uses software developed by Roberto Charreton and Attribute Overload."
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
*/
#pragma once
 
#include "EngineUtilities\Utilities\EngineMath.h"
namespace EU {
  class Vector3 {
  public:
    float x; 
    float y; 
    float z; 
    Vector3() : x(0), y(0), z(0) {}
 
    Vector3(float x, float y, float z) : x(x), y(y), z(z) {}
 
    Vector3 operator+(const Vector3& other) const {
      return Vector3(x + other.x, y + other.y, z + other.z);
    }
 
    // Operador += (para acumuladores de tangentes/bitangentes)
    Vector3& operator+=(const Vector3& other) {
      x += other.x; y += other.y; z += other.z;
      return *this;
    }
 
    Vector3 operator-(const Vector3& other) const {
      return Vector3(x - other.x, y - other.y, z - other.z);
    }
 
    Vector3 operator*(float scalar) const {
      return Vector3(x * scalar, y * scalar, z * scalar);
    }
 
    float magnitude() const {
      return EU::sqrt(x * x + y * y + z * z);
    }
 
    Vector3 normalize() const {
      float mag = magnitude();
      if (mag == 0) {
        return Vector3(0, 0, 0);
      }
      return Vector3(x / mag, y / mag, z / mag);
    }
 
    void
    zero() {
      Vector3(0, 0, 0);
    }
    
    void
    one() {
      Vector3(1,1,1);
    }
 
 
    // ---- helpers con tu Vector3 ----
    float dot(const Vector3& a, const Vector3& b) {
      return a.x * b.x + a.y * b.y + a.z * b.z;
    }
 
    Vector3 cross(const Vector3& a, const Vector3& b) {
      return Vector3(
        a.y * b.z - a.z * b.y,
        a.z * b.x - a.x * b.z,
        a.x * b.y - a.y * b.x
      );
    }
 
    // Método para obtener un puntero a los datos como un arreglo
    // @return: Puntero a los componentes del vector
    float* data() { return &x; }
    const float* data() const { return &x; }
  };
}