Wireframe.hpp

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#pragma once
 
#include <glad/glad.h>
#include <filesystem>
#include <glm/glm.hpp>
#include <string>
#include <vector>
 
namespace shkyera {
 
class Wireframe {
 public:
  struct Edge {
    glm::vec3 start;
    glm::vec3 end;
 
    Edge(const glm::vec3& s, const glm::vec3& e) : start(s), end(e) {}
  };
 
  Wireframe(const std::filesystem::path& filepath);
  Wireframe(const std::vector<Edge>& edges);
 
  Wireframe(const Wireframe& other) = delete;
  Wireframe& operator=(const Wireframe& other) = delete;
 
  Wireframe(Wireframe&& other) noexcept;
  Wireframe& operator=(Wireframe&& other) noexcept;
 
  ~Wireframe();
 
  void bind() const { glBindVertexArray(_vao); }
  void unbind() const { glBindVertexArray(0); }
 
  GLuint getVAO() const { return _vao; }
  GLuint getVBO() const { return _vbo; }
  GLsizei getEdgeCount() const { return _edgeCount; }
 
  class Factory {
   public:
    enum class Type { UNDEFINED = 0, CUBE = 1, CYLINDER = 2, SPHERE = 3 };
 
    static Wireframe create(Type type);
 
   private:
    static Wireframe createCube();
    static Wireframe createCylinder();
    static Wireframe createSphere();
  };
 
 private:
  void loadFromFile(const std::filesystem::path& filepath);
  void uploadToGPU(const std::vector<Edge>& edges);
 
  GLuint _vao, _vbo;
  GLsizei _edgeCount;
};
 
}  // namespace shkyera