#include "BasicScene.h"

#include "stdafx.h"

#include "GLUtil.h"

namespace charcoal
{
	namespace builtin
	{
		BasicScene::BasicScene(Application& application)
			: Scene(application), m_camera((float)TAU_1_4, (float)m_screen_size.x / (float)m_screen_size.y, 1.0f, 10.0f, vec3(0.0f, 0.0f, -5.0f))
		{}

		void BasicScene::init()
		{
			for (auto iter = m_batches.begin(); iter != m_batches.end(); ++iter)
			{
				iter->init();
			}
		}

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

		void BasicScene::unuse()
		{

		}

		void BasicScene::prerender()
		{
			for (auto iter = m_batches.begin(); iter != m_batches.end(); ++iter)
			{
				iter->prerender();
			}
			m_camera.prerender();
		}

		void BasicScene::render()
		{
			// TODO: This is not rendering :(
			glutil::clear_screen();
			m_shader_program.use();
			glutil::uniform_matrix(0, m_camera.get_world_to_view_matrix());
			for (auto iter = m_batches.begin(); iter != m_batches.end(); ++iter)
			{
				iter->render();
			}
		}

		BasicBatch* BasicScene::add_batch(BasicRenderable* renderable, int element_count)
		{
			return add_batch(renderable, element_count, element_count);
		}

		BasicBatch* BasicScene::add_batch(BasicRenderable* renderable, int element_count, int element_render_count)
		{
			m_batches.emplace_back(renderable, element_count, element_render_count);
			return &m_batches.back();
		}
	}
}