#include "LitScene.h"

#include "stdafx.h"

#include "Util.h"
#include "GLUtil.h"
#include "MeshFactory.h"

namespace charcoal
{
	namespace builtin
	{
		namespace lit
		{
			void Scene::init()
			{
				for (auto iter = m_batches.begin(); iter != m_batches.end(); ++iter)
				{
					Batch& batch = *iter;
					batch.init();
					add_prerenderable(&batch);
				}
			}

			void Scene::use()
			{
				// TODO: move to glutil
				glEnable(GL_DEPTH_TEST);
				glDepthFunc(GL_LESS);
			}

			void Scene::unuse()
			{

			}

			void Scene::render()
			{
				glutil::clear_screen();
				m_shader_program.use();
				glutil::uniform_matrix(0, m_p_camera->get_world_to_view_matrix());
				glutil::uniform_vec3(4, m_p_camera->get_position());
				glutil::uniform_uint(5, (unsigned int)m_lights.size());
				glutil::uniform_lights(6, m_lights);
				for (auto iter = m_batches.begin(); iter != m_batches.end(); ++iter)
				{
					iter->render();
				}
			}
		}
	}
}