diff --git a/Environment.cpp b/Environment.cpp
index 0bb9b23..31d6782 100644
--- a/Environment.cpp
+++ b/Environment.cpp
@@ -1,5 +1,7 @@
 #include "Environment.h"
 
+namespace ZL {
+
 int Environment::windowHeaderHeight = 0;
 int Environment::width = 0;
 int Environment::height = 0;
@@ -12,3 +14,5 @@ bool Environment::downPressed = false;
 
 Vector3f Environment::cameraShift = {0, 0, 0};
 Vector3f Environment::characterPos = {0, 0, 0};
+
+} // namespace ZL
diff --git a/Environment.h b/Environment.h
index f0dc366..30c554d 100644
--- a/Environment.h
+++ b/Environment.h
@@ -1,6 +1,8 @@
 #pragma once
 #include "Math.h"
 
+namespace ZL {
+
 class Environment {
 public:
     static int windowHeaderHeight;
@@ -13,6 +15,8 @@ public:
     static bool upPressed;
     static bool downPressed;
 
-    static ZL::Vector3f cameraShift;
-    static ZL::Vector3f characterPos;
+    static Vector3f cameraShift;
+    static Vector3f characterPos;
 };
+
+} // namespace ZL
diff --git a/Game.cpp b/Game.cpp
index 4b1f617..655150d 100755
--- a/Game.cpp
+++ b/Game.cpp
@@ -1,8 +1,206 @@
 #include "Game.h"
 #include "AnimatedModel.h"
 #include "BoneAnimatedModel.h"
+#include "Utils.h"
+#include "Inventory.h"  // Add this include
+#include <SDL2/SDL.h>
+#include <iostream>
 
 namespace ZL
 {
 
-}
\ No newline at end of file
+void Game::worldToScreenCoordinates(Vector3f objectPos,
+    Matrix4f projectionModelView,
+    int screenWidth, int screenHeight,
+    int& screenX, int& screenY) {
+
+    Vector4f inx = { objectPos.v[0], objectPos.v[1], objectPos.v[2], 1.0f};
+    Vector4f clipCoords = MultMatrixVector(projectionModelView, inx);
+
+    float ndcX = clipCoords.v[0] / clipCoords.v[3];
+    float ndcY = clipCoords.v[1] / clipCoords.v[3];
+
+    screenX = (int)((ndcX + 1.0f) * 0.5f * screenWidth);
+    screenY = (int)((1.0f + ndcY) * 0.5f * screenHeight);
+}
+
+Game::Game() : window(nullptr), glContext(nullptr), exitGameLoop(false), 
+    newTickCount(0), lastTickCount(0) {
+}
+
+Game::~Game() {
+    if (glContext) {
+        SDL_GL_DeleteContext(glContext);
+    }
+    if (window) {
+        SDL_DestroyWindow(window);
+    }
+    SDL_Quit();
+}
+
+void Game::setup() {
+    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS) != 0) {
+        SDL_Log("Failed to initialize SDL: %s", SDL_GetError());
+        return;
+    }
+
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
+
+    window = SDL_CreateWindow("Game", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 
+        Environment::width, Environment::height, SDL_WINDOW_OPENGL);
+    
+    glContext = SDL_GL_CreateContext(window);
+
+    ZL::BindOpenGlFunctions();
+    ZL::CheckGlError();
+
+    // Initialize renderer
+    renderer.shaderManager.AddShaderFromFiles("default", "./default.vertex", "./default.fragment");
+    renderer.shaderManager.AddShaderFromFiles("defaultColor", "./defaultColor.vertex", "./defaultColor.fragment");
+    renderer.InitOpenGL();
+
+    // Initialize game objects
+    gameObjects.initialize();
+}
+
+void Game::drawScene() {
+    static const std::string defaultShaderName = "default";
+    static const std::string vPositionName = "vPosition";
+    static const std::string vTexCoordName = "vTexCoord";
+    static const std::string textureUniformName = "Texture";
+
+    glClearColor(0.3f, 0.3f, 0.3f, 1.0f);
+    glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
+    
+    glViewport(0, 0, Environment::width, Environment::height);
+
+    renderer.shaderManager.PushShader(defaultShaderName);
+    renderer.RenderUniform1i(textureUniformName, 0);
+
+    renderer.EnableVertexAttribArray(vPositionName);
+    renderer.EnableVertexAttribArray(vTexCoordName);
+
+    // 3D Scene rendering
+    {
+        renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5, 
+            static_cast<float>(Environment::width) / static_cast<float>(Environment::height), 
+            50, 10000);
+        renderer.PushMatrix();
+
+        renderer.LoadIdentity();
+        renderer.TranslateMatrix({ 0,0, -100 * Environment::zoom });
+        
+        float t = 0.3;
+        renderer.RotateMatrix(QuatFromRotateAroundX(t * M_PI / 2.0));
+
+        // Draw cone
+        glBindTexture(GL_TEXTURE_2D, gameObjects.coneTexturePtr->getTexID());
+        renderer.DrawVertexRenderStruct(gameObjects.coneMeshMutable);
+
+        renderer.TranslateMatrix(Environment::cameraShift);
+
+        // Draw active objects
+        for (auto& ao : gameObjects.activeObjects) {
+            renderer.PushMatrix();
+            renderer.TranslateMatrix(ao.objectPos);
+            glBindTexture(GL_TEXTURE_2D, ao.activeObjectTexturePtr->getTexID());
+            renderer.DrawVertexRenderStruct(ao.activeObjectMeshMutable);
+            renderer.PopMatrix();
+        }
+
+        // Draw room
+        glBindTexture(GL_TEXTURE_2D, gameObjects.roomTexturePtr->getTexID());
+        renderer.DrawVertexRenderStruct(gameObjects.textMeshMutable);
+
+        auto latestProjectionModelView = renderer.GetProjectionModelViewMatrix();
+
+        renderer.PopMatrix();
+        renderer.PopProjectionMatrix();
+
+        // 2D UI rendering
+        renderer.PushProjectionMatrix(static_cast<float>(Environment::width), 
+            static_cast<float>(Environment::height));
+        renderer.PushMatrix();
+        renderer.LoadIdentity();
+
+        // Draw highlighted objects UI
+        for (auto& ao : gameObjects.activeObjects) {
+            if (ao.highlighted) {
+                int screenX, screenY;
+                worldToScreenCoordinates(ao.objectPos, latestProjectionModelView, 
+                    Environment::width, Environment::height, screenX, screenY);
+                renderer.PushMatrix();
+                renderer.TranslateMatrix(Vector3f{screenX + 0.f, screenY + 0.f, 0.0f});
+                glBindTexture(GL_TEXTURE_2D, ao.activeObjectScreenTexturePtr->getTexID());
+                renderer.DrawVertexRenderStruct(ao.activeObjectScreenMeshMutable);
+                renderer.PopMatrix();
+            }
+        }
+
+        // Draw inventory
+        const auto& inventory = ZL::ReturnInventory();
+        for (size_t i = 0; i < inventory.size(); ++i) {
+            renderer.PushMatrix();
+            float xPos = Environment::width - gameObjects.INVENTORY_MARGIN - gameObjects.INVENTORY_ICON_SIZE;
+            float yPos = gameObjects.INVENTORY_MARGIN + i * (gameObjects.INVENTORY_ICON_SIZE + gameObjects.INVENTORY_MARGIN);
+            renderer.TranslateMatrix(Vector3f{xPos, yPos, 0.0f});
+            glBindTexture(GL_TEXTURE_2D, inventory[i].texture->getTexID());
+            renderer.DrawVertexRenderStruct(gameObjects.inventoryIconMeshMutable);
+            renderer.PopMatrix();
+        }
+
+        renderer.PopMatrix();
+        renderer.PopProjectionMatrix();
+    }
+
+    renderer.DisableVertexAttribArray(vPositionName);
+    renderer.DisableVertexAttribArray(vTexCoordName);
+    renderer.shaderManager.PopShader();
+    
+    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.update();
+        
+        lastTickCount = newTickCount;
+    }
+}
+
+void Game::render() {
+    SDL_GL_MakeCurrent(window, glContext);
+    ZL::CheckGlError();
+
+    glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+    drawScene();
+    processTickCount();
+
+    SDL_GL_SwapWindow(window);
+}
+
+void Game::update() {
+    SDL_Event event;
+    while (SDL_PollEvent(&event)) {
+        if (event.type == SDL_QUIT) {
+            exitGameLoop = true;
+        }
+        gameObjects.handleEvent(event);
+    }
+    render();
+}
+
+}  // namespace ZL
\ No newline at end of file
diff --git a/Game.h b/Game.h
index 66c4804..73898d1 100755
--- a/Game.h
+++ b/Game.h
@@ -5,6 +5,8 @@
 #include "Renderer.h"
 #include "Environment.h"
 
+namespace ZL {
+
 class Game {
 public:
     Game();
@@ -20,10 +22,14 @@ public:
 private:
     void processTickCount();
     void drawScene();
+    void worldToScreenCoordinates(Vector3f objectPos,
+        Matrix4f projectionModelView,
+        int screenWidth, int screenHeight,
+        int& screenX, int& screenY);
 
     SDL_Window* window;
     SDL_GLContext glContext;
-    ZL::Renderer renderer;
+    Renderer renderer;
     GameObjectManager gameObjects;
     
     bool exitGameLoop;
@@ -32,4 +38,6 @@ private:
     
     static const size_t CONST_TIMER_INTERVAL = 10;
     static const size_t CONST_MAX_TIME_INTERVAL = 1000;
-};
\ No newline at end of file
+};
+
+}  // namespace ZL
\ No newline at end of file
diff --git a/GameObjectManager.cpp b/GameObjectManager.cpp
index 5577188..87426b6 100644
--- a/GameObjectManager.cpp
+++ b/GameObjectManager.cpp
@@ -1,12 +1,181 @@
 #include "GameObjectManager.h"
+#include "Environment.h"
+#include "ObjLoader.h"
+#include "Inventory.h"
+#include "TextModel.h"  // Add this include for LoadFromTextFile
+
+namespace ZL {
 
 const float GameObjectManager::INVENTORY_ICON_SIZE = 32.0f;
 const float GameObjectManager::INVENTORY_MARGIN = 10.0f;
 
 void GameObjectManager::initialize() {
-    // Implementation coming from main.cpp setup()
+    // Load textures
+    roomTexturePtr = std::make_shared<Texture>(CreateTextureDataFromBmp24("./Kitchen_ceramics.bmp"));
+    coneTexturePtr = std::make_shared<Texture>(CreateTextureDataFromBmp24("./conus.bmp"));
+    
+    // Load models
+    colorCubeMesh = CreateCube3D(5.0);
+    colorCubeMeshMutable.data = CreateCube3D(5.0);
+    colorCubeMeshMutable.RefreshVBO();
+
+    testObjMesh = LoadFromObjFile("./chair_01.obj");
+    testObjMesh.Scale(10);
+    testObjMesh.SwapZandY();
+    testObjMeshMutable.data = testObjMesh;
+    testObjMeshMutable.RefreshVBO();
+
+    textMesh = ZL::LoadFromTextFile("./mesh001.txt");  // Add ZL:: namespace
+    coneMesh = ZL::LoadFromTextFile("./cone001.txt");  // Add ZL:: namespace
+    coneMesh.Scale(200);
+
+    textMeshMutable.AssignFrom(textMesh);
+    textMeshMutable.RefreshVBO();
+    coneMeshMutable.AssignFrom(coneMesh);
+    coneMeshMutable.RefreshVBO();
+
+    // Load bone animations
+    bx.LoadFromFile("mesh_armature_and_animation_data.txt");
+
+    // Create active object
+    ActiveObject ao1;
+    ao1.activeObjectMesh = ZL::LoadFromTextFile("./book001.txt");  // Add ZL:: namespace
+    ao1.activeObjectMesh.Scale(4);
+    ao1.activeObjectMeshMutable.AssignFrom(ao1.activeObjectMesh);
+    ao1.activeObjectMeshMutable.RefreshVBO();
+    ao1.objectPos = Vector3f{50, 0, -300};
+    ao1.activeObjectTexturePtr = std::make_shared<Texture>(CreateTextureDataFromBmp24("./book03.bmp"));
+    ao1.activeObjectScreenTexturePtr = std::make_shared<Texture>(CreateTextureDataFromBmp24("./aoscreen01.bmp"));
+    ao1.activeObjectScreenMesh = CreateRect2D({ 0.f, 0.f }, { 64.f, 64.f }, 0.5);
+    ao1.activeObjectScreenMeshMutable.AssignFrom(ao1.activeObjectScreenMesh);
+    ao1.activeObjectScreenMeshMutable.RefreshVBO();
+    activeObjects.push_back(ao1);
+
+    // Initialize audio
+    audioPlayer = std::make_unique<AudioPlayer>();
+    if (audioPlayer) {
+        audioPlayer->playMusic("Symphony No.6 (1st movement).ogg");
+    }
+
+    // Initialize inventory
+    inventoryIconMesh = CreateRect2D(
+        {0.0f, 0.0f},
+        {INVENTORY_ICON_SIZE/2, INVENTORY_ICON_SIZE/2},
+        0.5f
+    );
+    inventoryIconMeshMutable.AssignFrom(inventoryIconMesh);
+    inventoryIconMeshMutable.RefreshVBO();
+
+    // Add test items to inventory
+    auto testRoomTexture = std::make_shared<Texture>(CreateTextureDataFromBmp24("./Kitchen_ceramics.bmp"));
+    auto testConeTexture = std::make_shared<Texture>(CreateTextureDataFromBmp24("./conus.bmp"));
+    AddItemToInventory("RoomCeramics", testRoomTexture);
+    AddItemToInventory("Cone", testConeTexture);
 }
 
 void GameObjectManager::update() {
-    // Implementation coming from main.cpp update()
+    updateScene(16); // Добавим фиксированный timestep для обновления сцены
 }
+
+void GameObjectManager::handleEvent(const SDL_Event& event) {
+    if (event.type == SDL_MOUSEBUTTONDOWN) {
+        bx.Interpolate(animationCounter);
+        animationCounter += 2;
+    }
+    else if (event.type == SDL_MOUSEWHEEL) {
+        static const float zoomstep = 1.0f;
+        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_KEYDOWN) {
+        switch (event.key.keysym.sym) {
+            case SDLK_LEFT:
+            case SDLK_a:
+                Environment::leftPressed = true;
+                if (audioPlayer) {
+                    audioPlayer->playSound("Звук-Идут-по-земле.ogg");
+                }
+                break;
+            case SDLK_RIGHT:
+            case SDLK_d:
+                Environment::rightPressed = true;
+                if (audioPlayer) {
+                    audioPlayer->playSound("Звук-Идут-по-земле.ogg");
+                }
+                break;
+            case SDLK_UP:
+            case SDLK_w:
+                Environment::upPressed = true;
+                if (audioPlayer) {
+                    audioPlayer->playSound("Звук-Идут-по-земле.ogg");
+                }
+                break;
+            case SDLK_DOWN:
+            case SDLK_s:
+                Environment::downPressed = true;
+                if (audioPlayer) {
+                    audioPlayer->playSound("Звук-Идут-по-земле.ogg");
+                }
+                break;
+            // ...handle other keys...
+        }
+    }
+    else if (event.type == SDL_KEYUP) {
+        switch (event.key.keysym.sym) {
+            case SDLK_LEFT:
+            case SDLK_a:
+                Environment::leftPressed = false;
+                break;
+            case SDLK_RIGHT:
+            case SDLK_d:
+                Environment::rightPressed = false;
+                break;
+            case SDLK_UP:
+            case SDLK_w:
+                Environment::upPressed = false;
+                break;
+            case SDLK_DOWN:
+            case SDLK_s:
+                Environment::downPressed = false;
+                break;
+        }
+    }
+}
+
+void GameObjectManager::updateScene(size_t ms) {
+    const float SPEED = 0.1f;
+    if (Environment::leftPressed) {
+        Environment::cameraShift.v[0] += SPEED * ms;
+    }
+    if (Environment::rightPressed) {
+        Environment::cameraShift.v[0] -= SPEED * ms;
+    }
+    if (Environment::upPressed) {
+        Environment::cameraShift.v[2] += SPEED * ms;
+    }
+    if (Environment::downPressed) {
+        Environment::cameraShift.v[2] -= SPEED * ms;
+    }
+
+    Environment::characterPos.v[0] = -Environment::cameraShift.v[0];
+    Environment::characterPos.v[1] = -Environment::cameraShift.v[1];
+    Environment::characterPos.v[2] = -Environment::cameraShift.v[2];
+
+    for (auto& ao : activeObjects) {
+        float dist = sqrtf(
+            pow(Environment::characterPos.v[0] - ao.objectPos.v[0], 2) +
+            pow(Environment::characterPos.v[1] - ao.objectPos.v[1], 2) +
+            pow(Environment::characterPos.v[2] - ao.objectPos.v[2], 2)
+        );
+        ao.highlighted = (dist < 50.f);
+    }
+}
+
+}  // namespace ZL
diff --git a/GameObjectManager.h b/GameObjectManager.h
index 1e56e1f..e998d50 100644
--- a/GameObjectManager.h
+++ b/GameObjectManager.h
@@ -5,11 +5,16 @@
 #include <memory>
 #include <vector>
 #include "ActiveObject.h"
+#include <SDL2/SDL.h>
+
+namespace ZL {
 
 class GameObjectManager {
 public:
     void initialize();
     void update();
+    void handleEvent(const SDL_Event& event);
+    void updateScene(size_t ms);
 
     std::shared_ptr<ZL::Texture> testObjTexturePtr;
     std::shared_ptr<ZL::Texture> roomTexturePtr;
@@ -38,4 +43,9 @@ public:
     
     static const float INVENTORY_ICON_SIZE;
     static const float INVENTORY_MARGIN;
+
+private:
+    int animationCounter = 0;
 };
+
+}  // namespace ZL
diff --git a/main.cpp b/main.cpp
index e13e50b..4aa257e 100755
--- a/main.cpp
+++ b/main.cpp
@@ -541,19 +541,20 @@ namespace ZL
 };
 
 #include "Game.h"
+#include "Environment.h"
 
 int main(int argc, char* argv[]) {
     constexpr int CONST_WIDTH = 1280;
     constexpr int CONST_HEIGHT = 720;
 
-    Environment::width = CONST_WIDTH;
-    Environment::height = CONST_HEIGHT;
+    ZL::Environment::width = CONST_WIDTH;
+    ZL::Environment::height = CONST_HEIGHT;
 
-    Game game;
+    ZL::Game game;
     game.setup();
 
 #ifdef EMSCRIPTEN
-    emscripten_set_main_loop([]() { game.update(); }, 0, 1);
+    emscripten_set_main_loop([](){ game.update(); }, 0, 1);
 #else
     while (!game.shouldExit()) {
         game.update();