#include "Game.h"
#include "AnimatedModel.h"
#include "BoneAnimatedModel.h"
#include "Utils.h"
#include "OpenGlExtensions.h"
#include <iostream>
#include "TextureManager.h"
#include "TextModel.h"
#include <random>
#include <cmath>

namespace ZL
{
#ifdef EMSCRIPTEN
	const char* CONST_ZIP_FILE = "space-game001.zip";
#else
	const char* CONST_ZIP_FILE = "";
#endif

	// Вспомогательная функция для получения случайного числа в диапазоне [min, max]
	float getRandomFloat(std::mt19937& gen, float min, float max) {
		std::uniform_real_distribution<> distrib(min, max);
		return static_cast<float>(distrib(gen));
	}

	// Икосаэдр (на основе золотого сечения phi)
	// Координаты могут быть вычислены заранее для константного икосаэдра.
	// Здесь только объявление, чтобы показать идею.

	VertexDataStruct CreateConvexPolyhedron(uint64_t seed) {

		// --- КОНСТАНТЫ ПАРАМЕТРОВ (как вы просили) ---
		const float BASE_SCALE = 3.0f;          // Общий размер камня
		const float MIN_AXIS_SCALE = 0.5f;      // Минимальное растяжение/сжатие по оси
		const float MAX_AXIS_SCALE = 1.5f;      // Максимальное растяжение/сжатие по оси
		const float MIN_PERTURBATION = 0.05f;   // Минимальное радиальное возмущение вершины
		const float MAX_PERTURBATION = 0.25f;   // Максимальное радиальное возмущение вершины
		// const size_t SUBDIVISION_LEVEL = 1;  // Уровень подразделения (для более круглого камня, пока опустим)

		std::mt19937 engine(static_cast<unsigned int>(seed));

		// Золотое сечение
		const float t = (1.0f + std::sqrt(5.0f)) / 2.0f;

		// 12 вершин икосаэдра
		std::vector<Vector3f> initialVertices = {
			{ -1,  t,  0 }, {  1,  t,  0 }, { -1, -t,  0 }, {  1, -t,  0 },
			{  0, -1,  t }, {  0,  1,  t }, {  0, -1, -t }, {  0,  1, -t },
			{  t,  0, -1 }, {  t,  0,  1 }, { -t,  0, -1 }, { -t,  0,  1 }
		};

		// 20 треугольных граней (индексы вершин)
		std::vector<std::array<int, 3>> faces = {
			// 5 треугольников вокруг вершины 0
			{0, 11, 5}, {0, 5, 1}, {0, 1, 7}, {0, 7, 10}, {0, 10, 11},
			// 5 смежных полос
			{1, 5, 9}, {5, 11, 4}, {11, 10, 2}, {10, 7, 6}, {7, 1, 8},
			// 5 треугольников вокруг вершины 3
			{3, 9, 4}, {3, 4, 2}, {3, 2, 6}, {3, 6, 8}, {3, 8, 9},
			// 5 смежных полос
			{4, 9, 5}, {2, 4, 11}, {6, 2, 10}, {8, 6, 7}, {9, 8, 1}
		};

		// 1. Нормализация и Возмущение (Perturbation)
		for (Vector3f& v : initialVertices) {
			v = v.normalized() * BASE_SCALE; // Нормализация к сфере радиуса BASE_SCALE

			// Радиальное возмущение:
			float perturbation = getRandomFloat(engine, MIN_PERTURBATION, MAX_PERTURBATION);
			v = v * (1.0f + perturbation);
		}

		// 2. Трансформация (Масштабирование и Поворот)

		// Случайные масштабы по осям
		Vector3f scaleFactors = {
			getRandomFloat(engine, MIN_AXIS_SCALE, MAX_AXIS_SCALE),
			getRandomFloat(engine, MIN_AXIS_SCALE, MAX_AXIS_SCALE),
			getRandomFloat(engine, MIN_AXIS_SCALE, MAX_AXIS_SCALE)
		};

		// Применяем масштабирование
		for (Vector3f& v : initialVertices) {
			v.v[0] *= scaleFactors.v[0];
			v.v[1] *= scaleFactors.v[1];
			v.v[2] *= scaleFactors.v[2];
		}

		// Случайный поворот (например, вокруг трех осей)
		Vector4f qx = QuatFromRotateAroundX(getRandomFloat(engine, 0.0f, 360.0f));
		Vector4f qy = QuatFromRotateAroundY(getRandomFloat(engine, 0.0f, 360.0f));
		Vector4f qz = QuatFromRotateAroundZ(getRandomFloat(engine, 0.0f, 360.0f));
		Vector4f qFinal = slerp(qx, qy, 0.5f); // Простой пример комбинирования
		qFinal = slerp(qFinal, qz, 0.5f).normalized();
		Matrix3f rotationMatrix = QuatToMatrix(qFinal);

		for (Vector3f& v : initialVertices) {
			v = MultMatrixVector(rotationMatrix, v);
		}

		// 3. Сглаженные Нормали и Формирование Mesh
		VertexDataStruct result;
		// Карта для накопления нормалей по уникальным позициям вершин
		// (Требует определенного оператора < для Vector3f в ZLMath.h, который у вас есть)
		std::map<Vector3f, Vector3f> smoothNormalsMap;

		// Предварительное заполнение карты нормалями
		for (const auto& face : faces) {
			Vector3f p1 = initialVertices[face[0]];
			Vector3f p2 = initialVertices[face[1]];
			Vector3f p3 = initialVertices[face[2]];

			// Нормаль грани: (p2 - p1) x (p3 - p1)
			Vector3f faceNormal = (p2 - p1).cross(p3 - p1).normalized();

			smoothNormalsMap[p1] = smoothNormalsMap[p1] + faceNormal;
			smoothNormalsMap[p2] = smoothNormalsMap[p2] + faceNormal;
			smoothNormalsMap[p3] = smoothNormalsMap[p3] + faceNormal;
		}

		// Нормализация накопленных нормалей
		for (auto& pair : smoothNormalsMap) {
			pair.second = pair.second.normalized();
		}


		// 4. Финальное заполнение VertexDataStruct и Текстурные Координаты
		for (const auto& face : faces) {
			Vector3f p1 = initialVertices[face[0]];
			Vector3f p2 = initialVertices[face[1]];
			Vector3f p3 = initialVertices[face[2]];

			// Позиции
			result.PositionData.push_back(p1);
			result.PositionData.push_back(p2);
			result.PositionData.push_back(p3);

			// Сглаженные Нормали (из карты)
			result.NormalData.push_back(smoothNormalsMap[p1]);
			result.NormalData.push_back(smoothNormalsMap[p2]);
			result.NormalData.push_back(smoothNormalsMap[p3]);

			// Текстурные Координаты (Планарная проекция на плоскость грани)
			// p1 -> (0, 0), p2 -> (L_12, 0), p3 -> (L_13 * cos(angle), L_13 * sin(angle))
			// Где L_xy - длина вектора, angle - угол между p2-p1 и p3-p1

			Vector3f uAxis = (p2 - p1).normalized();
			Vector3f vRaw = p3 - p1;

			// Проекция vRaw на uAxis
			float uProjLen = vRaw.dot(uAxis);

			// Вектор V перпендикулярный U: vRaw - uProj
			Vector3f vAxisRaw = vRaw - (uAxis * uProjLen);

			// Длина оси V
			float vLen = vAxisRaw.length();

			// Нормализованная ось V
			Vector3f vAxis = vAxisRaw.normalized();

			// Координаты (u, v) для p1, p2, p3 относительно p1
			Vector2f uv1 = { 0.0f, 0.0f };
			Vector2f uv2 = { (p2 - p1).length(), 0.0f }; // p2-p1 вдоль оси U
			Vector2f uv3 = { uProjLen, vLen };          // p3-p1: u-компонента = uProjLen, v-компонента = vLen

			// Находим максимальный размер, чтобы масштабировать в [0, 1]
			float maxUV = max( uv2.v[0], uv3.v[0], uv3.v[1] );

			if (maxUV > 0.000001f) {
				// Масштабируем:
				result.TexCoordData.push_back(uv1);
				result.TexCoordData.push_back(uv2 * (1.f/ maxUV));
				result.TexCoordData.push_back(uv3 * (1.f/ maxUV));
			}
			else {
				// Предотвращение деления на ноль для вырожденных граней
				result.TexCoordData.push_back({ 0.0f, 0.0f });
				result.TexCoordData.push_back({ 0.0f, 0.0f });
				result.TexCoordData.push_back({ 0.0f, 0.0f });
			}
		}

		return result;
	}

	Vector4f generateRandomQuaternion(std::mt19937& gen)
	{
		// Ðàñïðåäåëåíèå äëÿ ãåíåðàöèè ñëó÷àéíûõ êîîðäèíàò êâàòåðíèîíà
		std::normal_distribution<> distrib(0.0, 1.0);

		// Ãåíåðèðóåì ÷åòûðå ñëó÷àéíûõ ÷èñëà èç íîðìàëüíîãî ðàñïðåäåëåíèÿ N(0, 1).
		// Íîðìàëèçàöèÿ ýòîãî âåêòîðà äàåò ðàâíîìåðíîå ðàñïðåäåëåíèå ïî 4D-ñôåðå (ò.å. êâàòåðíèîí åäèíè÷íîé äëèíû).
		Vector4f randomQuat = {
			(float)distrib(gen),
			(float)distrib(gen),
			(float)distrib(gen),
			(float)distrib(gen)
		};

		return randomQuat.normalized();
	}


	// --- Îñíîâíàÿ ôóíêöèÿ ãåíåðàöèè ---
	std::vector<BoxCoords> generateRandomBoxCoords(int N)
	{
		// Êîíñòàíòû
		const float MIN_DISTANCE = 3.0f;
		const float MIN_DISTANCE_SQUARED = MIN_DISTANCE * MIN_DISTANCE; // Ðàáîòàåì ñ êâàäðàòîì ðàññòîÿíèÿ
		const float MIN_COORD = -100.0f;
		const float MAX_COORD = 100.0f;
		const int MAX_ATTEMPTS = 1000; // Îãðàíè÷åíèå íà êîëè÷åñòâî ïîïûòîê, ÷òîáû èçáåæàòü áåñêîíå÷íîãî öèêëà

		std::vector<BoxCoords> boxCoordsArr;
		boxCoordsArr.reserve(N); // Ðåçåðâèðóåì ïàìÿòü

		// 1. Èíèöèàëèçàöèÿ ãåíåðàòîðà ïñåâäîñëó÷àéíûõ ÷èñåë
		// Èñïîëüçóåì Mersenne Twister (mt19937) êàê âûñîêîêà÷åñòâåííûé ãåíåðàòîð
		std::random_device rd;
		std::mt19937 gen(rd());

		// 2. Îïðåäåëåíèå ðàâíîìåðíîãî ðàñïðåäåëåíèÿ äëÿ êîîðäèíàò [MIN_COORD, MAX_COORD]
		std::uniform_real_distribution<> distrib(MIN_COORD, MAX_COORD);

		int generatedCount = 0;

		while (generatedCount < N)
		{
			bool accepted = false;
			int attempts = 0;

			// Ïîïûòêà íàéòè ïîäõîäÿùèå êîîðäèíàòû
			while (!accepted && attempts < MAX_ATTEMPTS)
			{
				// Ãåíåðèðóåì íîâûå ñëó÷àéíûå êîîðäèíàòû
				Vector3f newPos(
					(float)distrib(gen),
					(float)distrib(gen),
					(float)distrib(gen)
				);

				// Ïðîâåðêà ðàññòîÿíèÿ äî âñåõ óæå ñóùåñòâóþùèõ îáúåêòîâ
				accepted = true; // Ïðåäïîëàãàåì, ÷òî ïîäõîäèò, ïîêà íå äîêàçàíî îáðàòíîå
				for (const auto& existingBox : boxCoordsArr)
				{
					// Ðàñ÷åò âåêòîðà ðàçíîñòè
					Vector3f diff = newPos - existingBox.pos;

					// Ðàñ÷åò êâàäðàòà ðàññòîÿíèÿ
					float distanceSquared = diff.squaredNorm();

					// Åñëè êâàäðàò ðàññòîÿíèÿ ìåíüøå êâàäðàòà ìèíèìàëüíîãî ðàññòîÿíèÿ
					if (distanceSquared < MIN_DISTANCE_SQUARED)
					{
						accepted = false; // Îòêëîíÿåì, ñëèøêîì áëèçêî
						break;           // Íåò ñìûñëà ïðîâåðÿòü äàëüøå, åñëè îäíî íàðóøåíèå íàéäåíî
					}
				}

				if (accepted)
				{
					// 2. Ãåíåðèðóåì ñëó÷àéíûé êâàòåðíèîí
					Vector4f randomQuat = generateRandomQuaternion(gen);

					// 3. Ïðåîáðàçóåì åãî â ìàòðèöó âðàùåíèÿ
					Matrix3f randomMatrix = QuatToMatrix(randomQuat);

					// 4. Äîáàâëÿåì îáúåêò ñ íîâîé ñëó÷àéíîé ìàòðèöåé
					boxCoordsArr.emplace_back(BoxCoords{ newPos, randomMatrix });
					generatedCount++;
				}
				attempts++;
			}

			// Åñëè ïðåâûøåíî ìàêñèìàëüíîå êîëè÷åñòâî ïîïûòîê, âûõîäèì èç öèêëà, 
			// ÷òîáû èçáåæàòü çàâèñàíèÿ, åñëè N ñëèøêîì âåëèêî èëè äèàïàçîí ñëèøêîì ìàë.
			if (!accepted) {
				std::cerr << "Ïðåäóïðåæäåíèå: Íå óäàëîñü ñãåíåðèðîâàòü " << N << " îáúåêòîâ. Ñãåíåðèðîâàíî: " << generatedCount << std::endl;
				break;
			}
		}

		return boxCoordsArr;
	}

	Game::Game()
		: window(nullptr)
		, glContext(nullptr)
		, newTickCount(0)
		, lastTickCount(0)
	{
		std::vector<Vector3f> emissionPoints = {
			Vector3f{-2.1f, 0.9f, 5.0f},
			Vector3f{2.1f, 0.9f, 5.0f}
		};
		sparkEmitter = SparkEmitter(emissionPoints, 100.0f);
	}

	Game::~Game() {
		if (glContext) {
			SDL_GL_DeleteContext(glContext);
		}
		if (window) {
			SDL_DestroyWindow(window);
		}
		SDL_Quit();
	}

	void Game::setup() {
		glContext = SDL_GL_CreateContext(ZL::Environment::window);

		ZL::BindOpenGlFunctions();
		ZL::CheckGlError();

		// Initialize renderer

#ifdef EMSCRIPTEN
		renderer.shaderManager.AddShaderFromFiles("default", "./shaders/default.vertex", "./shaders/default_web.fragment", CONST_ZIP_FILE);
		renderer.shaderManager.AddShaderFromFiles("defaultColor", "./shaders/defaultColor.vertex", "./shaders/defaultColor_web.fragment", CONST_ZIP_FILE);
		renderer.shaderManager.AddShaderFromFiles("env", "./shaders/env.vertex", "./shaders/env_web.fragment", CONST_ZIP_FILE);
		renderer.shaderManager.AddShaderFromFiles("defaultAtmosphere", "./shaders/defaultAtmosphere.vertex", "./shaders/defaultAtmosphere.fragment", CONST_ZIP_FILE);

#else
		renderer.shaderManager.AddShaderFromFiles("default", "./shaders/default.vertex", "./shaders/default_desktop.fragment", CONST_ZIP_FILE);
		renderer.shaderManager.AddShaderFromFiles("defaultColor", "./shaders/defaultColor_fog.vertex", "./shaders/defaultColor_fog_desktop.fragment", CONST_ZIP_FILE);
		renderer.shaderManager.AddShaderFromFiles("env", "./shaders/env_sky.vertex", "./shaders/env_sky_desktop.fragment", CONST_ZIP_FILE);
		renderer.shaderManager.AddShaderFromFiles("defaultAtmosphere", "./shaders/defaultAtmosphere.vertex", "./shaders/defaultAtmosphere.fragment", CONST_ZIP_FILE);
		renderer.shaderManager.AddShaderFromFiles("defaultColor2", "./shaders/defaultColor_fog2.vertex", "./shaders/defaultColor_fog2_desktop.fragment", CONST_ZIP_FILE);

#endif

		cubemapTexture = std::make_shared<Texture>(
			std::array<TextureDataStruct, 6>{
			CreateTextureDataFromBmp24("./resources/sky/space_rt.bmp", CONST_ZIP_FILE),
				CreateTextureDataFromBmp24("./resources/sky/space_lf.bmp", CONST_ZIP_FILE),
				CreateTextureDataFromBmp24("./resources/sky/space_up.bmp", CONST_ZIP_FILE),
				CreateTextureDataFromBmp24("./resources/sky/space_dn.bmp", CONST_ZIP_FILE),
				CreateTextureDataFromBmp24("./resources/sky/space_bk.bmp", CONST_ZIP_FILE),
				CreateTextureDataFromBmp24("./resources/sky/space_ft.bmp", CONST_ZIP_FILE)
		});


		cubemap.data = ZL::CreateCubemap(500);
		cubemap.RefreshVBO();

		//Load texture
		spaceshipTexture = std::make_unique<Texture>(CreateTextureDataFromPng("./resources/DefaultMaterial_BaseColor.png", CONST_ZIP_FILE));
		spaceshipBase = LoadFromTextFile02("./resources/spaceship005.txt", CONST_ZIP_FILE);
		spaceshipBase.RotateByMatrix(QuatToMatrix(QuatFromRotateAroundY(M_PI / 2.0)));
		//spaceshipBase.Move(Vector3f{ -0.52998, -13, 0 });
		spaceshipBase.Move(Vector3f{ -0.52998, -10, 10 });

		spaceship.AssignFrom(spaceshipBase);
		spaceship.RefreshVBO();

		//Boxes
		boxTexture = std::make_unique<Texture>(CreateTextureDataFromPng("./resources/box/box.png", CONST_ZIP_FILE));
		boxBase = LoadFromTextFile02("./resources/box/box.txt", CONST_ZIP_FILE);

		boxCoordsArr = generateRandomBoxCoords(50);

		boxRenderArr.resize(boxCoordsArr.size());

		for (int i = 0; i < boxCoordsArr.size(); i++)
		{
			//boxRenderArr[i].AssignFrom(boxBase);
			boxRenderArr[i].data = CreateConvexPolyhedron(1999);
			boxRenderArr[i].RefreshVBO();
		}

		sparkTexture = std::make_unique<Texture>(CreateTextureDataFromPng("./resources/spark.png", CONST_ZIP_FILE));

		sparkEmitter.setTexture(sparkTexture);


		buttonTexture = std::make_unique<Texture>(CreateTextureDataFromPng("./resources/button.png", CONST_ZIP_FILE));

		button.data.PositionData.push_back({ 100, 100, 0 });
		button.data.PositionData.push_back({ 100, 150, 0 });
		button.data.PositionData.push_back({ 300, 150, 0 });
		button.data.PositionData.push_back({ 100, 100, 0 });
		button.data.PositionData.push_back({ 300, 150, 0 });
		button.data.PositionData.push_back({ 300, 100, 0 });

		button.data.TexCoordData.push_back({ 0,0 });
		button.data.TexCoordData.push_back({ 0,1 });
		button.data.TexCoordData.push_back({ 1,1 });
		button.data.TexCoordData.push_back({ 0,0 });
		button.data.TexCoordData.push_back({ 1,1 });
		button.data.TexCoordData.push_back({ 1,0 });

		button.RefreshVBO();

		musicVolumeBarTexture = std::make_unique<Texture>(CreateTextureDataFromPng("./resources/musicVolumeBarTexture.png", CONST_ZIP_FILE));

		musicVolumeBar.data.PositionData.push_back({ 1190, 100, 0 });
		musicVolumeBar.data.PositionData.push_back({ 1190, 600, 0 });
		musicVolumeBar.data.PositionData.push_back({ 1200, 600, 0 });
		musicVolumeBar.data.PositionData.push_back({ 1190, 100, 0 });
		musicVolumeBar.data.PositionData.push_back({ 1200, 600, 0 });
		musicVolumeBar.data.PositionData.push_back({ 1200, 100, 0 });

		musicVolumeBar.data.TexCoordData.push_back({ 0,0 });
		musicVolumeBar.data.TexCoordData.push_back({ 0,1 });
		musicVolumeBar.data.TexCoordData.push_back({ 1,1 });
		musicVolumeBar.data.TexCoordData.push_back({ 0,0 });
		musicVolumeBar.data.TexCoordData.push_back({ 1,1 });
		musicVolumeBar.data.TexCoordData.push_back({ 1,0 });

		musicVolumeBar.RefreshVBO();


		musicVolumeBarButtonTexture = std::make_unique<Texture>(CreateTextureDataFromPng("./resources/musicVolumeBarButton.png", CONST_ZIP_FILE));

		float musicVolumeBarButtonButtonCenterY = 350.0f;

		musicVolumeBarButton.data.PositionData.push_back({ musicVolumeBarButtonButtonCenterX - musicVolumeBarButtonButtonRadius, musicVolumeBarButtonButtonCenterY - musicVolumeBarButtonButtonRadius, 0 });
		musicVolumeBarButton.data.PositionData.push_back({ musicVolumeBarButtonButtonCenterX - musicVolumeBarButtonButtonRadius, musicVolumeBarButtonButtonCenterY + musicVolumeBarButtonButtonRadius, 0 });
		musicVolumeBarButton.data.PositionData.push_back({ musicVolumeBarButtonButtonCenterX + musicVolumeBarButtonButtonRadius, musicVolumeBarButtonButtonCenterY + musicVolumeBarButtonButtonRadius, 0 });
		musicVolumeBarButton.data.PositionData.push_back({ musicVolumeBarButtonButtonCenterX - musicVolumeBarButtonButtonRadius, musicVolumeBarButtonButtonCenterY - musicVolumeBarButtonButtonRadius, 0 });
		musicVolumeBarButton.data.PositionData.push_back({ musicVolumeBarButtonButtonCenterX + musicVolumeBarButtonButtonRadius, musicVolumeBarButtonButtonCenterY + musicVolumeBarButtonButtonRadius, 0 });
		musicVolumeBarButton.data.PositionData.push_back({ musicVolumeBarButtonButtonCenterX + musicVolumeBarButtonButtonRadius, musicVolumeBarButtonButtonCenterY - musicVolumeBarButtonButtonRadius, 0 });

		musicVolumeBarButton.data.TexCoordData.push_back({ 0,0 });
		musicVolumeBarButton.data.TexCoordData.push_back({ 0,1 });
		musicVolumeBarButton.data.TexCoordData.push_back({ 1,1 });
		musicVolumeBarButton.data.TexCoordData.push_back({ 0,0 });
		musicVolumeBarButton.data.TexCoordData.push_back({ 1,1 });
		musicVolumeBarButton.data.TexCoordData.push_back({ 1,0 });

		musicVolumeBarButton.RefreshVBO();
		renderer.InitOpenGL();
		glEnable(GL_BLEND);
		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

		planetObject.init();

		rockTexture = std::make_unique<Texture>(CreateTextureDataFromPng("./resources/rock.png", ""));

	}

	void Game::drawCubemap(float skyPercent)
	{
		static const std::string defaultShaderName = "default";
		static const std::string envShaderName = "env";
		static const std::string vPositionName = "vPosition";
		static const std::string vTexCoordName = "vTexCoord";
		static const std::string textureUniformName = "Texture";
		static const std::string skyPercentUniformName = "skyPercent";

		renderer.shaderManager.PushShader(envShaderName);
		renderer.RenderUniform1i(textureUniformName, 0);
		renderer.RenderUniform1f(skyPercentUniformName, skyPercent);
		renderer.EnableVertexAttribArray(vPositionName);
		renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
			static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
			Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
		renderer.PushMatrix();
		renderer.LoadIdentity();
		renderer.RotateMatrix(Environment::inverseShipMatrix);

		CheckGlError();

		glBindTexture(GL_TEXTURE_CUBE_MAP, cubemapTexture->getTexID());
		renderer.DrawVertexRenderStruct(cubemap);

		CheckGlError();


		renderer.PopMatrix();
		renderer.PopProjectionMatrix();
		renderer.DisableVertexAttribArray(vPositionName);

		renderer.shaderManager.PopShader();
		CheckGlError();
	}

	void Game::drawShip()
	{
		static const std::string defaultShaderName = "default";
		static const std::string envShaderName = "env";
		static const std::string vPositionName = "vPosition";
		static const std::string vTexCoordName = "vTexCoord";
		static const std::string textureUniformName = "Texture";

		renderer.shaderManager.PushShader(defaultShaderName);
		renderer.RenderUniform1i(textureUniformName, 0);
		renderer.EnableVertexAttribArray(vPositionName);
		renderer.EnableVertexAttribArray(vTexCoordName);

		renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
			static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
			Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
		renderer.PushMatrix();

		renderer.LoadIdentity();
		renderer.TranslateMatrix({ 0,0, -1.0f * Environment::zoom });


		glBindTexture(GL_TEXTURE_2D, spaceshipTexture->getTexID());
		renderer.DrawVertexRenderStruct(spaceship);
		sparkEmitter.draw(renderer, Environment::zoom, Environment::width, Environment::height);

		renderer.PopMatrix();
		renderer.PopProjectionMatrix();
		renderer.DisableVertexAttribArray(vPositionName);
		renderer.DisableVertexAttribArray(vTexCoordName);

		renderer.shaderManager.PopShader();
		CheckGlError();
	}

	void Game::drawBoxes()
	{
		static const std::string defaultShaderName = "default";
		static const std::string envShaderName = "env";
		static const std::string vPositionName = "vPosition";
		static const std::string vTexCoordName = "vTexCoord";
		static const std::string textureUniformName = "Texture";

		renderer.shaderManager.PushShader(defaultShaderName);
		renderer.RenderUniform1i(textureUniformName, 0);
		renderer.EnableVertexAttribArray(vPositionName);
		renderer.EnableVertexAttribArray(vTexCoordName);

		renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
			static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
			Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);

		for (int i = 0; i < boxCoordsArr.size(); i++)
		{
			renderer.PushMatrix();

			renderer.LoadIdentity();
			renderer.TranslateMatrix({ 0,0, -1.0f * Environment::zoom });
			renderer.RotateMatrix(Environment::inverseShipMatrix);
			renderer.TranslateMatrix(-Environment::shipPosition);
			renderer.TranslateMatrix({ 0.f, 0.f, 45000.f });
			renderer.TranslateMatrix(boxCoordsArr[i].pos);
			renderer.RotateMatrix(boxCoordsArr[i].m);

			//glBindTexture(GL_TEXTURE_2D, boxTexture->getTexID());
			glBindTexture(GL_TEXTURE_2D, rockTexture->getTexID());
			renderer.DrawVertexRenderStruct(boxRenderArr[i]);

			renderer.PopMatrix();
		}
		renderer.PopProjectionMatrix();
		renderer.DisableVertexAttribArray(vPositionName);
		renderer.DisableVertexAttribArray(vTexCoordName);

		renderer.shaderManager.PopShader();
		CheckGlError();
	}
	void Game::UpdateVolumeKnob() {
		float musicVolumeBarButtonButtonCenterY = volumeBarMinY + musicVolume * (volumeBarMaxY - volumeBarMinY);

		auto& pos = musicVolumeBarButton.data.PositionData;

		pos[0] = { musicVolumeBarButtonButtonCenterX - musicVolumeBarButtonButtonRadius, musicVolumeBarButtonButtonCenterY - musicVolumeBarButtonButtonRadius, 0 };
		pos[1] = { musicVolumeBarButtonButtonCenterX - musicVolumeBarButtonButtonRadius, musicVolumeBarButtonButtonCenterY + musicVolumeBarButtonButtonRadius, 0 };
		pos[2] = { musicVolumeBarButtonButtonCenterX + musicVolumeBarButtonButtonRadius, musicVolumeBarButtonButtonCenterY + musicVolumeBarButtonButtonRadius, 0 };
		pos[3] = { musicVolumeBarButtonButtonCenterX - musicVolumeBarButtonButtonRadius, musicVolumeBarButtonButtonCenterY - musicVolumeBarButtonButtonRadius, 0 };
		pos[4] = { musicVolumeBarButtonButtonCenterX + musicVolumeBarButtonButtonRadius, musicVolumeBarButtonButtonCenterY + musicVolumeBarButtonButtonRadius, 0 };
		pos[5] = { musicVolumeBarButtonButtonCenterX + musicVolumeBarButtonButtonRadius, musicVolumeBarButtonButtonCenterY - musicVolumeBarButtonButtonRadius, 0 };

		musicVolumeBarButton.RefreshVBO();

	}

	void Game::UpdateVolumeFromMouse(int mouseX, int mouseY) {

		int uiX = mouseX;
		int uiY = Environment::height - mouseY;
		Environment::shipVelocity = (musicVolume) * (20.0);
		if (uiY < volumeBarMinY || uiY > volumeBarMaxY)
		{
			return;
		}

		float t = (uiY - volumeBarMinY) / (volumeBarMaxY - volumeBarMinY);
		if (t < 0.0f) t = 0.0f;
		if (t > 1.0f) t = 1.0f;
		musicVolume = t;
		UpdateVolumeKnob();
	}
	void Game::drawUI()
	{
		static const std::string defaultShaderName = "default";
		static const std::string envShaderName = "env";
		static const std::string vPositionName = "vPosition";
		static const std::string vTexCoordName = "vTexCoord";
		static const std::string textureUniformName = "Texture";


		glClear(GL_DEPTH_BUFFER_BIT);

		renderer.shaderManager.PushShader(defaultShaderName);
		renderer.RenderUniform1i(textureUniformName, 0);
		renderer.EnableVertexAttribArray(vPositionName);
		renderer.EnableVertexAttribArray(vTexCoordName);

		renderer.PushProjectionMatrix(Environment::width, Environment::height, -1, 1);
		renderer.PushMatrix();

		renderer.LoadIdentity();


		glBindTexture(GL_TEXTURE_2D, buttonTexture->getTexID());
		renderer.DrawVertexRenderStruct(button);

		glBindTexture(GL_TEXTURE_2D, musicVolumeBarTexture->getTexID());
		renderer.DrawVertexRenderStruct(musicVolumeBar);

		glBindTexture(GL_TEXTURE_2D, musicVolumeBarButtonTexture->getTexID());
		renderer.DrawVertexRenderStruct(musicVolumeBarButton);

		renderer.PopMatrix();
		renderer.PopProjectionMatrix();
		renderer.DisableVertexAttribArray(vPositionName);
		renderer.DisableVertexAttribArray(vTexCoordName);

		renderer.shaderManager.PopShader();
		CheckGlError();
	}

	void Game::drawScene() {
		static const std::string defaultShaderName = "default";
		static const std::string envShaderName = "env";
		static const std::string vPositionName = "vPosition";
		static const std::string vTexCoordName = "vTexCoord";
		static const std::string textureUniformName = "Texture";

		glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
		glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);

		glViewport(0, 0, Environment::width, Environment::height);

		CheckGlError();

		float skyPercent = 0.0;
		float distance = planetObject.distanceToPlanetSurface(Environment::shipPosition);
		if (distance > 1900.f)
		{
			skyPercent = 0.0f;
		}
		else if (distance < 1000.f)
		{
			skyPercent = 1.0f;
		}
		else
		{
			skyPercent = (1900.f - distance) / 900.f;
		}

		drawCubemap(skyPercent);
		planetObject.draw(renderer);
		if (planetObject.distanceToPlanetSurface(Environment::shipPosition) > 100.f)
		{
			glClear(GL_DEPTH_BUFFER_BIT);
		}
		drawShip();
		drawBoxes();

		drawUI();

		CheckGlError();
	}

	void Game::processTickCount() {

		if (lastTickCount == 0) {
			lastTickCount = SDL_GetTicks64();
			return;
		}

		newTickCount = SDL_GetTicks64();
		if (newTickCount - lastTickCount > CONST_TIMER_INTERVAL) {
			size_t delta = (newTickCount - lastTickCount > CONST_MAX_TIME_INTERVAL) ?
				CONST_MAX_TIME_INTERVAL : newTickCount - lastTickCount;

			//gameObjects.updateScene(delta);
			sparkEmitter.update(static_cast<float>(delta));
			planetObject.update(static_cast<float>(delta));

			if (Environment::tapDownHold) {

				float diffx = Environment::tapDownCurrentPos.v[0] - Environment::tapDownStartPos.v[0];
				float diffy = Environment::tapDownCurrentPos.v[1] - Environment::tapDownStartPos.v[1];


				if (abs(diffy) > 5.0 || abs(diffx) > 5.0) //threshold
				{

					float rotationPower = sqrtf(diffx * diffx + diffy * diffy);

					//std::cout << rotationPower << std::endl;

					float deltaAlpha = rotationPower * delta * M_PI / 500000.f;

					Vector3f rotationDirection = { diffy, diffx, 0 };

					rotationDirection = rotationDirection.normalized();

					Vector4f rotateQuat = {
						rotationDirection.v[0] * sin(deltaAlpha * 0.5f),
						rotationDirection.v[1] * sin(deltaAlpha * 0.5f),
						rotationDirection.v[2] * sin(deltaAlpha * 0.5f),
						cos(deltaAlpha * 0.5f) };

					Matrix3f rotateMat = QuatToMatrix(rotateQuat);

					Environment::shipMatrix = MultMatrixMatrix(Environment::shipMatrix, rotateMat);
					Environment::inverseShipMatrix = InverseMatrix(Environment::shipMatrix);

				}
			}

			if (fabs(Environment::shipVelocity) > 0.01f)
			{
				Vector3f velocityDirection = { 0,0, -Environment::shipVelocity * delta / 1000.f };
				Vector3f velocityDirectionAdjusted = MultMatrixVector(Environment::shipMatrix, velocityDirection);

				Environment::shipPosition = Environment::shipPosition + velocityDirectionAdjusted;
			}

			lastTickCount = newTickCount;
		}
	}

	void Game::render() {
		SDL_GL_MakeCurrent(ZL::Environment::window, glContext);
		ZL::CheckGlError();

		glClearColor(0.0f, 1.0f, 0.0f, 1.0f);
		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

		drawScene();
		processTickCount();

		SDL_GL_SwapWindow(ZL::Environment::window);
	}
	void Game::update() {
		SDL_Event event;
		while (SDL_PollEvent(&event)) {
			if (event.type == SDL_QUIT) {
				Environment::exitGameLoop = true;

			}
			else if (event.type == SDL_MOUSEBUTTONDOWN) {
				// 1. Îáðàáîòêà íàæàòèÿ êíîïêè ìûøè

				int mx = event.button.x;
				int my = event.button.y;

				std::cout << mx << " " << my << '\n';
				int uiX = mx;
				int uiY = Environment::height - my;
				if (uiX >= volumeBarMinX - 40 && uiX <= volumeBarMaxX + 40 &&
					uiY >= volumeBarMinY - 40 && uiY <= volumeBarMaxY + 40) {
					isDraggingVolume = true;
					UpdateVolumeFromMouse(mx, my);
				}
				else {
					Environment::tapDownHold = true;
					// Êîîðäèíàòû íà÷àëüíîãî íàæàòèÿ
					Environment::tapDownStartPos.v[0] = event.button.x;
					Environment::tapDownStartPos.v[1] = event.button.y;
					// Íà÷àëüíàÿ ïîçèöèÿ òàêæå ñòàíîâèòñÿ òåêóùåé
					Environment::tapDownCurrentPos.v[0] = event.button.x;
					Environment::tapDownCurrentPos.v[1] = event.button.y;
				}

			}
			else if (event.type == SDL_MOUSEBUTTONUP) {
				// 2. Îáðàáîòêà îòïóñêàíèÿ êíîïêè ìûøè
				isDraggingVolume = false;
				Environment::tapDownHold = false;
			}
			else if (event.type == SDL_MOUSEMOTION) {
				// 3. Îáðàáîòêà ïåðåìåùåíèÿ ìûøè
				int mx = event.motion.x;
				int my = event.motion.y;

				if (isDraggingVolume) {
					// Äâèãàåì ìûøü ïî ñëàéäåðó — ìåíÿåì ãðîìêîñòü è ïîçèöèþ êðóæêà
					UpdateVolumeFromMouse(mx, my);
				}
				if (Environment::tapDownHold) {
					// Îáíîâëåíèå òåêóùåé ïîçèöèè, åñëè êíîïêà óäåðæèâàåòñÿ
					Environment::tapDownCurrentPos.v[0] = event.motion.x;
					Environment::tapDownCurrentPos.v[1] = event.motion.y;
				}
			}
			else if (event.type == SDL_MOUSEWHEEL) {
				static const float zoomstep = 2.0f;
				if (event.wheel.y > 0) {
					Environment::zoom -= zoomstep;
				}
				else if (event.wheel.y < 0) {
					Environment::zoom += zoomstep;
				}
				if (Environment::zoom < zoomstep) {
					Environment::zoom = zoomstep;
				}
			}
			else if (event.type == SDL_KEYUP)
			{
				if (event.key.keysym.sym == SDLK_i)
				{
					Environment::shipVelocity += 500.f;
				}
				if (event.key.keysym.sym == SDLK_k)
				{
					Environment::shipVelocity -= 500.f;
				}
				if (event.key.keysym.sym == SDLK_o)
				{
					Environment::shipVelocity += 50.f;
				}
				if (event.key.keysym.sym == SDLK_l)
				{
					Environment::shipVelocity -= 50.f;
				}
			}
		}
		render();
	}

}  // namespace ZL