#include "LitScene.h"

#include "stdafx.h"

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

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

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

		void LitScene::unuse()
		{

		}

		void LitScene::render()
		{
			glutil::clear_screen();
			m_shader_program.use();
			CHECK_GL_ERR();
			glutil::uniform_matrix(0, m_p_camera->get_world_to_view_matrix());
			CHECK_GL_ERR();
			glutil::uniform_lights(4, m_lights);
			CHECK_GL_ERR();
			glutil::uniform_uint(20, m_lights.size());
			CHECK_GL_ERR();
			for (auto iter = m_batches.begin(); iter != m_batches.end(); ++iter)
			{
				iter->render();
			}
			CHECK_GL_ERR();
		}
	}
}