renderer.hpp

// SPDX-License-Identifier: MIT
// Author:  Giovanni Santini
// Mail:    giovanni.santini@proton.me
// Github:  @San7o
 
#include <brenta/model.hpp>
#include <brenta/shader.hpp>
#include <brenta/camera.hpp>
#include <brenta/model.hpp>
 
#include <glm/glm.hpp>
 
#pragma once
 
namespace brenta
{
 
class renderer
{
public:
 
  class item;
 
  renderer() = delete;
  ~renderer() = delete;
  
  static void begin_frame(const camera& cam);
  static void submit(const renderer::item& it);
  static void end_frame();
 
private:
 
  static glm::mat4 projection;
  static glm::mat4 view;
  static glm::vec3 cam_position;
  static std::vector<item> render_queue;
  
  static void flush();
 
};
 
class renderer::item
{
public:
  const model* m;
  const shader::name_t material;
  glm::mat4 transform;
 
  item() = default;
  item(const model* m,
       const shader::name_t material,
       const glm::mat4 transform = glm::mat4(1.0))
    : m(m), material(material), transform(transform) {}
 
  renderer::item& translate(glm::vec3 translation);
  renderer::item& rotate(glm::vec3 rotation);
  renderer::item& scale(float scale);
 
};
  
} // namespace brenta