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

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

	

	Vector4f generateRandomQuaternion(std::mt19937& gen)
	{

		std::normal_distribution<> distrib(0.0, 1.0);

		Vector4f randomQuat = {
			(float)distrib(gen),
			(float)distrib(gen),
			(float)distrib(gen),
			(float)distrib(gen)
		};

		return randomQuat.normalized();
	}


	std::vector<BoxCoords> generateRandomBoxCoords(int N)
	{
		const float MIN_DISTANCE = 3.0f;
		const float MIN_DISTANCE_SQUARED = MIN_DISTANCE * MIN_DISTANCE;
		const float MIN_COORD = -100.0f;
		const float MAX_COORD = 100.0f;
		const int MAX_ATTEMPTS = 1000; 
		std::vector<BoxCoords> boxCoordsArr;

		std::random_device rd;
		std::mt19937 gen(rd());

		std::uniform_real_distribution<> distrib(MIN_COORD, MAX_COORD);

		int generatedCount = 0;

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

			while (!accepted && attempts < MAX_ATTEMPTS)
			{
				Vector3f newPos(
					(float)distrib(gen),
					(float)distrib(gen),
					(float)distrib(gen)
				);

				accepted = true; 
				for (const auto& existingBox : boxCoordsArr)
				{

					Vector3f diff = newPos - existingBox.pos;

					float distanceSquared = diff.squaredNorm();

					if (distanceSquared < MIN_DISTANCE_SQUARED)
					{
						accepted = false;
						break;      
					}
				}

				if (accepted)
				{
					Vector4f randomQuat = generateRandomQuaternion(gen);

					Matrix3f randomMatrix = QuatToMatrix(randomQuat);

					boxCoordsArr.emplace_back(BoxCoords{ newPos, randomMatrix });
					generatedCount++;
				}
				attempts++;
			}

			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)
	{
		projectiles.reserve(maxProjectiles);
		for (int i = 0; i < maxProjectiles; ++i) {
			projectiles.emplace_back(std::make_unique<Projectile>());
		}
	}

	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);
		renderer.shaderManager.AddShaderFromFiles("defaultColorPlanet", "./shaders/defaultColorPlanet.vertex", "./shaders/defaultColorPlanet_web.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);
		renderer.shaderManager.AddShaderFromFiles("defaultColorStones", "./shaders/defaultColor_fog_stones.vertex", "./shaders/defaultColor_fog_stones_desktop.fragment", CONST_ZIP_FILE);
		renderer.shaderManager.AddShaderFromFiles("planetBake", "./shaders/planet_bake.vertex", "./shaders/planet_bake_desktop.fragment", CONST_ZIP_FILE);
		renderer.shaderManager.AddShaderFromFiles("planetStone", "./shaders/planet_stone.vertex", "./shaders/planet_stone_desktop.fragment", CONST_ZIP_FILE);
		renderer.shaderManager.AddShaderFromFiles("planetLand", "./shaders/planet_land.vertex", "./shaders/planet_land_desktop.fragment", CONST_ZIP_FILE);

#endif

		bool cfgLoaded = sparkEmitter.loadFromJsonFile("../config/spark_config.json", renderer, CONST_ZIP_FILE);
		bool projCfgLoaded = projectileEmitter.loadFromJsonFile("../config/spark_projectile_config.json", renderer, CONST_ZIP_FILE);
		projectileEmitter.setEmissionPoints(std::vector<Vector3f>());
		uiManager.loadFromFile("../config/ui.json", renderer, CONST_ZIP_FILE);

		uiManager.setButtonCallback("playButton", [this](const std::string& name) {
			std::cerr << "Play button pressed: " << name << std::endl;
			});

		uiManager.setButtonCallback("exitButton", [](const std::string& name) {
			Environment::exitGameLoop = true;
			});

		uiManager.setButtonCallback("settingsButton", [this](const std::string& name) {
			if (uiManager.pushMenuFromFile("../config/settings.json", this->renderer, CONST_ZIP_FILE)) {

				uiManager.setButtonCallback("Opt1", [this](const std::string& n) {
					std::cerr << "Opt1 pressed: " << n << std::endl;
					});

				uiManager.setButtonCallback("Opt2", [this](const std::string& n) {
					std::cerr << "Opt2 pressed: " << n << std::endl;
					});

				uiManager.setButtonCallback("backButton", [this](const std::string& n) {
					uiManager.popMenu();
					});
			}
			else {
				std::cerr << "Failed to open settings menu" << std::endl;
			}
			});

		uiManager.setSliderCallback("musicVolumeSlider", [this](const std::string& name, float value) {
			std::cerr << "Music volume slider changed to: " << value << std::endl;
			musicVolume = value;
			Environment::shipVelocity = musicVolume * 20.0f;
			});

		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_shine.png", CONST_ZIP_FILE));
		spaceshipBase = LoadFromTextFile02("./resources/spaceship006.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 = CreateBaseConvexPolyhedron(1999);
			boxRenderArr[i].RefreshVBO();
		}

		if (!cfgLoaded)
		{
			throw std::runtime_error("Failed to load spark emitter config file!");
		}


		/*	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 });

		renderer.TranslateMatrix({ 0, -Environment::zoom * 0.03f, 0 });
		glBindTexture(GL_TEXTURE_2D, spaceshipTexture->getTexID());
		renderer.DrawVertexRenderStruct(spaceship);

		for (const auto& p : projectiles) {
			if (p && p->isActive()) {
				p->draw(renderer);
			}
		}

		sparkEmitter.draw(renderer, Environment::zoom, Environment::width, Environment::height);
		projectileEmitter.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);
		uiManager.draw(renderer);
		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;
			}

			for (auto& p : projectiles) {
				if (p && p->isActive()) {
					p->update(static_cast<float>(delta), renderer);
				}
			}

			std::vector<Vector3f> projCameraPoints;
			for (const auto& p : projectiles) {
				if (p && p->isActive()) {
					Vector3f worldPos = p->getPosition();
					Vector3f rel = worldPos - Environment::shipPosition;
					Vector3f camPos = MultMatrixVector(Environment::inverseShipMatrix, rel);
					projCameraPoints.push_back(camPos);
				}
			}
			if (!projCameraPoints.empty()) {
				projectileEmitter.setEmissionPoints(projCameraPoints);
				projectileEmitter.emit();
			}
			else {
				projectileEmitter.setEmissionPoints(std::vector<Vector3f>());
			}

			std::vector<Vector3f> shipCameraPoints;
			for (const auto& lp : shipLocalEmissionPoints) {
				Vector3f adjusted = lp + Vector3f{ 0.0f, -Environment::zoom * 0.03f, 0.0f };
				shipCameraPoints.push_back(adjusted);
			}
			if (!shipCameraPoints.empty()) {
				sparkEmitter.setEmissionPoints(shipCameraPoints);
			}

			sparkEmitter.update(static_cast<float>(delta));
			projectileEmitter.update(static_cast<float>(delta));

			lastTickCount = newTickCount;
		}
	}

	void Game::fireProjectiles() {
		std::vector<Vector3f> localOffsets = {
			Vector3f{ -1.5f, 0.9f, 5.0f },
			Vector3f{ 1.5f, 0.9f, 5.0f }
		};

		const float projectileSpeed = 60.0f;
		const float lifeMs = 5000.0f;
		const float size = 0.5f;

		Vector3f localForward = { 0,0,-1 };
		Vector3f worldForward = MultMatrixVector(Environment::shipMatrix, localForward).normalized();

		for (const auto& lo : localOffsets) {
			Vector3f worldPos = Environment::shipPosition + MultMatrixVector(Environment::shipMatrix, lo);
			Vector3f worldVel = worldForward * projectileSpeed;

			for (auto& p : projectiles) {
				if (!p->isActive()) {
					p->init(worldPos, worldVel, lifeMs, size, projectileTexture, renderer);
					break;
				}
			}
		}
	}

	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;
				int uiX = mx;
				int uiY = Environment::height - my;

				uiManager.onMouseDown(uiX, uiY);

				bool uiHandled = false;

				if (event.button.button == SDL_BUTTON_LEFT && !uiManager.isUiInteraction()) {
					uint64_t now = SDL_GetTicks64();
					if (now - lastProjectileFireTime >= static_cast<uint64_t>(projectileCooldownMs)) {
						lastProjectileFireTime = now;
						fireProjectiles();
					}
				}

				for (const auto& button : uiManager.findButton("") ? std::vector<std::shared_ptr<UiButton>>{} : std::vector<std::shared_ptr<UiButton>>{}) {
					(void)button;
				}

				auto pressedSlider = [&]() -> std::shared_ptr<UiSlider> {
					for (const auto& slider : uiManager.findSlider("") ? std::vector<std::shared_ptr<UiSlider>>{} : std::vector<std::shared_ptr<UiSlider>>{}) {
						(void)slider;
					}
					return nullptr;
					}();

				if (!uiManager.isUiInteraction()) {
					Environment::tapDownHold = true;
					// Êîîðäèíàòû íà÷àëüíîãî íàæàòèÿ
					Environment::tapDownStartPos.v[0] = mx;
					Environment::tapDownStartPos.v[1] = my;
					// Íà÷àëüíàÿ ïîçèöèÿ òàêæå ñòàíîâèòñÿ òåêóùåé
					Environment::tapDownCurrentPos.v[0] = mx;
					Environment::tapDownCurrentPos.v[1] = my;
				}
			}
			else if (event.type == SDL_MOUSEBUTTONUP) {
				// 2. Îáðàáîòêà îòïóñêàíèÿ êíîïêè ìûøè
				int mx = event.button.x;
				int my = event.button.y;
				int uiX = mx;
				int uiY = Environment::height - my;

				uiManager.onMouseUp(uiX, uiY);

				if (!uiManager.isUiInteraction()) {
					Environment::tapDownHold = false;
				}
			}
			else if (event.type == SDL_MOUSEMOTION) {
				// 3. Îáðàáîòêà ïåðåìåùåíèÿ ìûøè
				int mx = event.motion.x;
				int my = event.motion.y;
				int uiX = mx;
				int uiY = Environment::height - my;

				uiManager.onMouseMove(uiX, uiY);

				if (Environment::tapDownHold && !uiManager.isUiInteraction()) {
					Environment::tapDownCurrentPos.v[0] = mx;
					Environment::tapDownCurrentPos.v[1] = my;
				}
			}
			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