update core library

src/Client/languages/de.ts

@@ -39,10 +39,6 @@
 </context>
 <context>
     <name>MainMenu</name>
-    <message>
-        <source>Play game</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>My Settings</source>
         <translation type="unfinished"></translation>
@@ -51,6 +47,10 @@
         <source>Exit</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Select level</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>PreviewControl</name>

src/Client/languages/en.ts

@@ -39,10 +39,6 @@
 </context>
 <context>
     <name>MainMenu</name>
-    <message>
-        <source>Play game</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>My Settings</source>
         <translation type="unfinished"></translation>
@@ -51,6 +47,10 @@
         <source>Exit</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Select level</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>PreviewControl</name>

src/Client/languages/es.ts

@@ -39,10 +39,6 @@
 </context>
 <context>
     <name>MainMenu</name>
-    <message>
-        <source>Play game</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>My Settings</source>
         <translation type="unfinished"></translation>
@@ -51,6 +47,10 @@
         <source>Exit</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Select level</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>PreviewControl</name>

src/Client/languages/fr.ts

@@ -39,10 +39,6 @@
 </context>
 <context>
     <name>MainMenu</name>
-    <message>
-        <source>Play game</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>My Settings</source>
         <translation type="unfinished"></translation>
@@ -51,6 +47,10 @@
         <source>Exit</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Select level</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>PreviewControl</name>

src/Client/languages/ja.ts

@@ -39,10 +39,6 @@
 </context>
 <context>
     <name>MainMenu</name>
-    <message>
-        <source>Play game</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>My Settings</source>
         <translation type="unfinished"></translation>
@@ -51,6 +47,10 @@
         <source>Exit</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Select level</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>PreviewControl</name>

src/Client/languages/pl.ts

@@ -39,10 +39,6 @@
 </context>
 <context>
     <name>MainMenu</name>
-    <message>
-        <source>Play game</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>My Settings</source>
         <translation type="unfinished"></translation>
@@ -51,6 +47,10 @@
         <source>Exit</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Select level</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>PreviewControl</name>

src/Client/languages/ru.ts

@@ -39,10 +39,6 @@
 </context>
 <context>
     <name>MainMenu</name>
-    <message>
-        <source>Play game</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>My Settings</source>
         <translation type="unfinished"></translation>
@@ -51,6 +47,10 @@
         <source>Exit</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Select level</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>PreviewControl</name>

src/Client/languages/tr.ts

@@ -39,10 +39,6 @@
 </context>
 <context>
     <name>MainMenu</name>
-    <message>
-        <source>Play game</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>My Settings</source>
         <translation type="unfinished"></translation>
@@ -51,6 +47,10 @@
         <source>Exit</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Select level</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>PreviewControl</name>

src/Client/languages/uk.ts

@@ -39,10 +39,6 @@
 </context>
 <context>
     <name>MainMenu</name>
-    <message>
-        <source>Play game</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>My Settings</source>
         <translation type="unfinished"></translation>
@@ -51,6 +47,10 @@
         <source>Exit</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Select level</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>PreviewControl</name>

src/Client/languages/zh.ts

@@ -39,10 +39,6 @@
 </context>
 <context>
     <name>MainMenu</name>
-    <message>
-        <source>Play game</source>
-        <translation type="unfinished"></translation>
-    </message>
     <message>
         <source>My Settings</source>
         <translation type="unfinished"></translation>
@@ -51,6 +47,10 @@
         <source>Exit</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Select level</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>PreviewControl</name>

src/Core/Crawl.qrc

@@ -24,7 +24,6 @@
         <file>CrawlCoreAssets/particles/smokeSprite.png</file>
         <file>CrawlModule/particles/Fire.qml</file>
         <file>CrawlModule/particles/Wint.qml</file>
-        <file>CrawlModule/PreviewScane.qml</file>
         <file>CrawlModule/PreviewControl.qml</file>
     </qresource>
 </RCC>

src/Core/Crawl/clientapp.cpp

@@ -23,6 +23,7 @@
 #include "pluginloader.h"
 #include <viewsolutions.h>
 #include "worldstatus.h"
+#include "user.h"
 
 namespace CRAWL {
 
@@ -36,18 +37,27 @@ QByteArray ClientApp::initTheme() {
     }
 }
 
+ILevel *ClientApp::getLastLevel() {
+    for (const auto &data : qAsConst(_availableLvls)) {
+        if (data.model && data.model->world() && _engine->currentUser() &&
+                _engine->currentUser()->isUnlocked(data.model->world()->itemId())) {
+            return data.model;
+        }
+    }
+
+    return nullptr;
+}
+
 ClientApp::ClientApp() {
     _engine = new Engine();
     _menu = new MainMenuModel();
-    _store = new Store();
 
-    connect(_menu, &MainMenuModel::sigNewGame, this, &ClientApp::start);
+    connect(_menu, &MainMenuModel::sigLevelChanged, this, &ClientApp::changeLevel);
 }
 
 ClientApp::~ClientApp() {
     delete _menu;
     delete _engine;
-    delete _store;
 
     for (auto it = _availableLvls.begin(); it != _availableLvls.end(); ++it) {
         delete it.value().viewModel;
@@ -57,26 +67,17 @@ ClientApp::~ClientApp() {
     _availableLvls.clear();
 }
 
-IWorld *ClientApp::getLastWorld() {
-    for (const auto &data : qAsConst(_availableLvls)) {
-        if (data.viewModel && data.viewModel->unlocked()) {
-            return data.model;
-        }
-    }
-
-    return nullptr;
-}
-
 void ClientApp::initStore(Store *store) {
     QMultiHash<int, const IItem *> storeItems;
     for (const auto &data : qAsConst(_availableLvls)) {
-        storeItems.unite(data.model->childItemsRecursive());
+        if (data.model && data.model->world())
+            storeItems.unite(data.model->world()->childItemsRecursive());
     }
 
     store->init(storeItems);
 }
 
-void ClientApp::start(const QString &lvl) {
+void ClientApp::changeLevel(int lvl) {
     WordlData data = _availableLvls.value(lvl);
 
     if (!data.model) {
@@ -91,8 +92,7 @@ void ClientApp::start(const QString &lvl) {
         return;
     }
 
-    _engine->setWorld(data.model);
+    _engine->setLevel(data.model);
-    _engine->start();
 }
 
 bool ClientApp::init(QQmlApplicationEngine *engine) {
@@ -133,19 +133,19 @@ bool ClientApp::init(QQmlApplicationEngine *engine) {
     if (engine->rootObjects().isEmpty())
         return false;
 
-    _engine->setWorld(getLastWorld());
+    _engine->setLevel(getLastLevel());
     _engine->setQmlEngine(engine);
-    initStore(_store);
+    initStore(_engine->store());
 
     return true;
 }
 
-void ClientApp::addLvl(IWorld *levelWordl) {
+void ClientApp::addLvl(ILevel *levelWordl) {
     WordlData data;
 
     data.model = levelWordl;
-    data.viewModel = new WorldViewData(data.model);
+    data.viewModel = new WorldViewData(data.model->world());
-    _availableLvls.insert(data.model->itemName(), data);
+    _availableLvls.insert(data.model->world()->itemId(), data);
     _menu->addWorldViewModel(data.viewModel);
 }
 

src/Core/Crawl/clientapp.h

@@ -27,7 +27,6 @@ class MainMenuModel;
 class IControl;
 class Store;
 
-
 /**
  * @brief The WordlData struct simple structure that contains information about world.
  */
@@ -68,25 +67,25 @@ public:
 
 private:
     QByteArray initTheme();
-    IWorld* getLastWorld();
+    ILevel *getLastLevel();
 
     void initStore(Store* store);
     /**
      * @brief addLvl This method should be add level to game.
      * @param levelWordl This is world instance
      */
-    void addLvl(IWorld* levelWordl);
+    void addLvl(ILevel* levelWordl);
 
     /**
-     * @brief start This method star new game in @a lvl
+     * @brief changeLevel This method star new game in @a lvl
      * @param lvl This is lvl name
      */
-    void start(const QString& lvl);
+    void changeLevel(int lvl);
 
-    QHash<QString, WordlData> _availableLvls;
+    QHash<int, WordlData> _availableLvls;
     MainMenuModel *_menu = nullptr;
     Engine *_engine = nullptr;
-    Store *_store = nullptr;
+
 };
 
 }

src/Core/Crawl/ilevel.cpp

@@ -7,7 +7,7 @@
 
 #include "iitem.h"
 #include "ilevel.h"
-#include "iworld.h"
+#include "ipreviewscaneworld.h"
 
 namespace CRAWL {
 
@@ -20,7 +20,7 @@ IWorld *ILevel::world() {
     return _world;
 }
 
-IWorld *ILevel::previewScane() {
+IPreviewScaneWorld *ILevel::previewScane() {
     return _previewScane;
 }
 
@@ -33,7 +33,7 @@ void ILevel::setWorld(IWorld *newWorld) {
     _world = newWorld;
 }
 
-void ILevel::setPreviewScane(IWorld *newPreviewScane) {
+void ILevel::setPreviewScane(IPreviewScaneWorld *newPreviewScane) {
     _previewScane = newPreviewScane;
 }
 

src/Core/Crawl/ilevel.h

@@ -15,6 +15,7 @@ namespace CRAWL {
 
 class IWorld;
 class IItem;
+class IPreviewScaneWorld;
 
 /**
  * @brief The ILevel class This interface make the world instance object.
@@ -39,7 +40,7 @@ public:
      * @return pointer to the model of the preview scane.
      * @see ILevel::setPreviewScane
      */
-    IWorld* previewScane();
+    IPreviewScaneWorld* previewScane();
 
     /**
      * @brief reset This method unload all loaded data from level.
@@ -61,12 +62,12 @@ protected:
      * @note The @a newPreviewScane item will be distroued with the parent object.
      * @see ILevel::previewScane
      */
-    void setPreviewScane(IWorld *newPreviewScane);
+    void setPreviewScane(IPreviewScaneWorld *newPreviewScane);
 
 private:
 
     IWorld* _world = nullptr;
-    IWorld* _previewScane = nullptr;
+    IPreviewScaneWorld* _previewScane = nullptr;
 };
 
 }

src/Core/Crawl/ipreviewscaneworld.cpp

@@ -89,6 +89,10 @@ void IPreviewScaneWorld::handleSelect(int item, bool isSelected) {
     }
 }
 
+const StartData &IPreviewScaneWorld::configuration() const {
+    return _configuration;
+}
+
 void IPreviewScaneWorld::initControl(IControl *control) {
     auto controlObject = dynamic_cast<PreviewControl*>(control);
 

src/Core/Crawl/ipreviewscaneworld.h

@@ -17,6 +17,7 @@ namespace CRAWL {
  */
 class CRAWL_EXPORT IPreviewScaneWorld: public IWorld
 {
+    Q_OBJECT
 public:
     /**
      * @brief IPreviewScaneWorld This is main constructo of the preview world model.
@@ -38,6 +39,8 @@ public:
     bool start(const StartData &config) override;
     bool stop() override;
 
+    const StartData &configuration() const;
+
 signals:
     /**
      * @brief sigPrepareIsFinished This signal emited when user finished prepare to game.

src/Core/Crawl/iworld.cpp

@@ -67,6 +67,10 @@ void IWorld::render(unsigned int tbfMsec) {
     _ItemsMutex.unlock();
 
     for (int id: toRemove) {
+        if (id == static_cast<IWorldItem *>(player())->guiId()) {
+            playerIsDead(static_cast<PlayableObject*>(player()));
+        }
+
         removeItem(id);
     }
 
@@ -97,6 +101,7 @@ bool IWorld::start(const StartData& config) {
     setTargetFps(60);
     setRunning(true);
     _eventServer->start();
+    setVisible(true);
 
     return true;
 }
@@ -134,6 +139,7 @@ IWorldItem *IWorld::generate(const QString &objectType) const {
 
 bool IWorld::stop() {
     setRunning(false);
+    setVisible(false);
     _eventServer->stop();
     return true;
 }
@@ -149,7 +155,7 @@ IWorldItem *IWorld::getItem(int id) const {
 }
 
 void IWorld::clearItems() {
-    stop();
+    IWorld::stop();
 
     while (_items.cbegin() != _items.cend()) {
         removeItem(*_items.cbegin());
@@ -307,6 +313,19 @@ const WorldRule *IWorld::worldRules() {
     return _worldRules;
 }
 
+void IWorld::setVisible(bool visible) {
+    if (_visible == visible) {
+        return;
+    }
+
+    _visible = visible;
+    emit visibleChanged();
+}
+
+void IWorld::playerIsDead(PlayableObject *) const {
+    emit sigGameFinished();
+}
+
 bool IWorld::running() const {
     return _running;
 }
@@ -390,7 +409,7 @@ void IWorld::setCameraReleativePosition(const QVector3D &newCameraReleativePosit
 }
 
 void IWorld::handleStop() {
-    runAsBackGround();
+    stop();
 }
 
 const QVector3D &IWorld::cameraReleativePosition() const {
@@ -467,4 +486,9 @@ void IWorld::setMenu(QObject *newMenu) {
     emit menuChanged();
 }
 
+bool IWorld::visible() const
+{
+    return _visible;
+}
+
 }

src/Core/Crawl/iworld.h

@@ -71,8 +71,9 @@ class CRAWL_EXPORT IWorld : public QObject, public IRender, public IItem
      * @see IWorld::getMenu
      * @see IWorld::userInterface
     */
-    Q_PROPERTY(QObject * menu READ menu WRITE setMenu NOTIFY menuChanged)
+    Q_PROPERTY(QObject * menu READ getMenu WRITE setMenu NOTIFY menuChanged)
     Q_PROPERTY(QString hdr READ hdr NOTIFY hdrChanged)
+    Q_PROPERTY(bool visible READ visible NOTIFY visibleChanged)
 
     Q_PROPERTY(int worldStatus READ wordlStatus WRITE setWorldStatus NOTIFY worldStatusChanged)
 
@@ -248,12 +249,17 @@ public:
      */
     void reset();
 
+    /**
+     * @brief visible This metohd retunr current value of the visible object.
+     * @return true if view is visible else false.
+     */
+    bool visible() const;
+
 signals:
     /**
      * @brief sigGameFinished This signal emit when game are finished
-     * @brief result This is player statistics after finished level,
      */
-    void sigGameFinished(GameResult result);
+    void sigGameFinished() const;
 
     /**
      * @brief sigOBjctsListChanged This signal emited when lvel status are changed.
@@ -304,6 +310,11 @@ signals:
      */
     void menuChanged();
 
+    /**
+     * @brief visibleChanged This signal emited when visible of the view changed.
+     */
+    void visibleChanged();
+
 protected:
 
     /**
@@ -420,6 +431,16 @@ protected:
      */
     const WorldRule *worldRules();
 
+    /**
+     * @brief setVisible This method sets visible propertye for the qml view.
+     * @param visible This is new value of a property
+     */
+    void setVisible(bool visible);
+
+    /**
+     * @brief playerIsDead This method will be invoked when player object get signal dead.
+     */
+    virtual void playerIsDead(PlayableObject*) const;
 
 protected slots:
     virtual void onIntersects(const IWorldItem * trigger, QList<const IWorldItem *> list);
@@ -524,6 +545,7 @@ private:
 
     int _targetFps = 60;
     bool _running = false;
+    bool _visible = true;
 
     // testing
     friend ClastersTest;

src/Core/CrawlModule/Crawl.qml

@@ -18,11 +18,19 @@ ApplicationWindow {
     height: 720;
     title: qsTr("Crawl");
 
+    property var model: engine
+
     Metrix {id: metrix}
 
     Scene {
         id: scane;
-        model: engine;
+        model: (model)? model.world : null;
+        anchors.fill: parent;
+    }
+
+    Scene {
+        id: nest;
+        model: (model)? model.world : null;
         anchors.fill: parent;
     }
 

src/Core/CrawlModule/MainMenu.qml

@@ -38,7 +38,7 @@ Item {
 
         MainMenuButton {
             id: play
-            text: qsTr("Play game")
+            text: qsTr("Select level")
 
             onClicked: {
                 selectLvl.open()

src/Core/CrawlModule/PreviewScane.qml

@@ -1,135 +0,0 @@
-import QtQuick
-import QtQuick3D
-import QtQuick.Controls.Material
-import QtQuick.Controls
-import QtQuick.Layouts
-import QtQuick3D.Particles3D
-
-
-View3D {
-    id: scene;
-
-    property var model: null;
-    renderMode: View3D.Offscreen
-
-    PerspectiveCamera {
-        id: camera
-        position: Qt.vector3d(0,0, 100)
-    }
-
-    SceneEnvironment {
-        id: defautlBackground
-        backgroundMode: SceneEnvironment.Color
-        clearColor: "#777777"
-    }
-
-    environment: /*(privateRoot.world)? background:*/ defautlBackground
-
-    ParticleSystem3D {
-        id: privateRoot
-        property var arrayObjects: []
-        property var world: (model)? model.world: null
-
-        property var gameMenuModel: (model)? model.menu: null
-        property var player: (world)? world.player: null
-        property var releativeCameraPosition: (world)? world.cameraReleativePosition: null
-
-        function add (cppObjId) {
-            if (!model) {
-                console.log("create object fail")
-                return;
-            }
-
-            const objModel = model.getGameObject(cppObjId);
-
-            if (!objModel) {
-                console.log("object model not found");
-                return;
-            }
-
-            var viewTemplate = objModel.viewTemplate;
-
-            var temp = Qt.createComponent(viewTemplate)
-            if (temp.status === Component.Ready) {
-                var obj = temp.createObject(privateRoot)
-                obj.model = objModel;
-                arrayObjects.push(obj)
-            } else {
-                console.log("wrong viewTemplate in model " + temp.errorString());
-            }
-        }
-
-        function remove(id) {
-            if (typeof id !== "number" || id < 0) {
-                console.log("id not found");
-                return;
-            }
-
-            for (var i = 0; i < arrayObjects.length; ++i) {
-                if (id === arrayObjects[i].guiId) {
-                    arrayObjects[i].destroy();
-                    arrayObjects.splice(i,1);
-
-                }
-            }
-        }
-
-        Connections {
-            target: privateRoot.world;
-            function onSigOBjctsListChanged(diff) {
-                if (!diff) {
-                    console.log("diff not found");
-                    return;
-                }
-
-                let tempDifRem = [];
-                tempDifRem = diff.getRemoveIds();
-                let tempDifAdd = [];
-                tempDifAdd = diff.getAddedIds();
-
-                for (let i = 0; i < tempDifAdd.length; ++i) {
-                    privateRoot.add(tempDifAdd[i]);
-                }
-
-                for (let j = 0; j < tempDifRem.length; ++j) {
-                    privateRoot.remove(tempDifRem[j]);
-                }
-            }
-        }
-
-        Connections {
-            target: privateRoot;
-
-            function onGameMenuModelChanged() {
-                if (!privateRoot.gameMenuModel) {
-                    return;
-                }
-
-                const comp = Qt.createComponent(privateRoot.gameMenuModel.view);
-                if (comp.status === Component.Ready) {
-                    if (privateRoot.gameMenu) {
-                        privateRoot.gameMenu.destroy()
-                    }
-
-                    privateRoot.gameMenu = comp.createObject(scene);
-                    if (privateRoot.gameMenu === null) {
-                        // Error Handling
-                        console.log("Error creating object");
-                    }
-
-                    privateRoot.gameMenu.model = privateRoot.gameMenuModel;
-
-                } else if (comp.status === Component.Error) {
-                    // Error Handling
-                    console.log("Error loading component: " + privateRoot.gameMenuModel.view, comp.errorString());
-                }
-            }
-
-            function onShowMenuChanged() {
-                if (privateRoot.gameMenu) {
-                    privateRoot.gameMenu.visible = !showMenu
-                }
-            }
-        }
-    }
-}

src/Core/CrawlModule/Scene.qml

@@ -11,10 +11,12 @@ import engine.worldstatus
 View3D {
     id: scene;
 
-    property var model: null;
+    property var worldModel: null;
     property alias showMenu: privateRoot.showMenu
     renderMode: View3D.Offscreen
 
+    visible: worldModel && worldModel.visible
+
     Label {
         text: scane.renderStats.fps
         x: 200
@@ -44,18 +46,16 @@ View3D {
     ParticleSystem3D {
         id: privateRoot
         property var arrayObjects: []
-        property var world: (model)? model.world: null
 
-        property var gameMenuModel: (world)? world.menu: null
+        property var gameMenuModel: (worldModel)? worldModel.menu: null
-        property var player: (world)? world.player: null
+        property var player: (worldModel)? worldModel.player: null
-        property var releativeCameraPosition: (world)? world.cameraReleativePosition: null
+        property var releativeCameraPosition: (worldModel)? worldModel.cameraReleativePosition: null
-        property var progress: (model)? model.prepareLvlProgress: null
 
         property var gameMenu: null
-        property bool showMenu: (world)? WorldStatus.Game !== world.worldStatus : false;
+        property bool showMenu: (worldModel)? WorldStatus.Game !== worldModel.worldStatus : false;
 
         function add (cppObjId) {
-            if (!model) {
+            if (!worldModel) {
                 console.log("create object fail")
                 return;
             }
@@ -95,7 +95,7 @@ View3D {
         }
 
         Connections {
-            target: privateRoot.world;
+            target: worldModel;
             function onSigOBjctsListChanged(diff) {
                 if (!diff) {
                     console.log("diff not found");

src/Core/private/engine.cpp

@@ -9,9 +9,11 @@
 
 #include <QQmlComponent>
 #include <Crawl/guiobject.h>
+#include <Crawl/ipreviewscaneworld.h>
 #include "Crawl/iworld.h"
 #include <QThread>
 #include <quasarapp.h>
+#include <storeviewmodel.h>
 #include "Crawl/icontrol.h"
 #include "QDateTime"
 #include "QtConcurrent"
@@ -20,10 +22,14 @@
 namespace CRAWL {
 
 Engine::Engine(QObject *parent): QObject(parent) {
+    _store = new Store();
+    _storeView = new StoreViewModel;
+
 }
 
 Engine::~Engine() {
     stopRenderLoop();
+    delete _storeView;
 }
 
 QObject *Engine::scane() {
@@ -48,15 +54,19 @@ void Engine::setLevel(ILevel *world) {
     _currentLevel = world;
     emit worldChanged();
 
-    if (_currentLevel && _currentLevel->world() && !_currentLevel->world()->)) {
+    if (!_currentLevel) {
 
-        if (_currentLevel->world()) {
+        QuasarAppUtils::Params::log("Failed to init world. The World object is null! ",
-            QuasarAppUtils::Params::log("Failed to init world. World name: " + _currentLevel->world()->itemName(),
+                                    QuasarAppUtils::Error);
-                                        QuasarAppUtils::Error);
+
-        } else {
+        _currentLevel = nullptr;
-            QuasarAppUtils::Params::log("Failed to init world. The World object is null! ",
+        return;
-                                        QuasarAppUtils::Error);
+    }
-        }
+
+    if (_currentLevel->world()) {
+        QuasarAppUtils::Params::log("Failed to init world. World name: " +
+                                    _currentLevel->world()->itemName(),
+                                    QuasarAppUtils::Error);
 
         _currentLevel = nullptr;
         return;
@@ -64,6 +74,12 @@ void Engine::setLevel(ILevel *world) {
 
     startRenderLoop();
     _currentLevel->world()->runAsBackGround();
+
+    connect(_currentLevel->previewScane(), &IPreviewScaneWorld::sigPrepareIsFinished,
+            this, &Engine::start);
+
+    connect(_currentLevel->world(), &IPreviewScaneWorld::sigGameFinished,
+            this, &Engine::stop);
 }
 
 void Engine::setScane(QObject *newScane) {
@@ -81,28 +97,41 @@ QObject *Engine::player() const {
 }
 
 QObject *Engine::world() const {
+    if (!_currentLevel)
+        return nullptr;
+
     return _currentLevel->world();
 }
 
-int Engine::prepareLvlProgress() const {
+void Engine::start(const StartData& config) const {
-    return _prepareLvlProgress;
+    if (!_currentLevel)
+        return;
+
+
+    if (!_currentLevel->previewScane()->stop()) {
+        return;
+    }
+
+    _currentLevel->world()->start(config);
 }
 
-bool Engine::start() const {
+void Engine::stop() const {
     if (!_currentLevel)
-        return false;
+        return;
 
-    if (!_currentLevel->isInit())
-        return false;
 
-    return _currentWorld->start();
+    if (!_currentLevel->world()->stop()) {
+        return;
+    }
+
+    _currentLevel->previewScane()->start(_currentLevel->previewScane()->configuration());
 }
 
 QObject *Engine::getGameObject(int id) const {
-    if (!_currentWorld)
+    if (!_currentLevel)
         return nullptr;
 
-    return _currentWorld->getItem(id);
+    return _currentLevel->world()->getItem(id);
 }
 
 void Engine::startRenderLoop() {
@@ -122,17 +151,9 @@ bool Engine::isRendering() const {
     return _renderLoopFuture.isRunning();
 }
 
-void Engine::setPrepareLvlProgress(int newPrepareLvlProgress) {
-    if (_prepareLvlProgress == newPrepareLvlProgress) {
-        return;
-    }
-    _prepareLvlProgress = newPrepareLvlProgress;
-    emit prepareLvlProgressChanged();
-}
-
 void Engine::renderLoop() {
 
-    if (!_currentWorld)
+    if (!_currentLevel)
         return;
 
     while (_renderLoop) {
@@ -144,11 +165,33 @@ void Engine::renderLoop() {
             continue;
         }
 
-        _currentWorld->render(currentTime - _oldTimeRender);
+        _currentLevel->world()->render(currentTime - _oldTimeRender);
         _oldTimeRender = currentTime;
     }
+}
 
+Store *Engine::store() const {
+    return _store;
+}
 
+QObject *Engine::nest() const {
+    if (!_currentLevel)
+        return nullptr;
+
+    return _currentLevel->previewScane();
+}
+
+User *Engine::currentUser() const {
+    return _currentUser;
+}
+
+QObject *Engine::storeView() const {
+    return _storeView;
+}
+
+void Engine::initStore(const QMultiHash<int, const IItem *> &availabelItems) {
+    _store->init(availabelItems);
+    _storeView->init(_store, _currentUser);
 }
 
 }

src/Core/private/engine.h

@@ -18,6 +18,9 @@ namespace CRAWL {
 
 class IWorld;
 class Store;
+class StartData;
+class User;
+class StoreViewModel;
 
 /**
  * @brief The Engine class
@@ -27,9 +30,10 @@ class Engine : public QObject {
     Q_OBJECT
     Q_PROPERTY(QObject* player READ player NOTIFY playerChanged)
     Q_PROPERTY(QObject* world READ world NOTIFY worldChanged)
+    Q_PROPERTY(QObject* nest READ nest NOTIFY worldChanged)
+    Q_PROPERTY(QObject* storeView READ storeView NOTIFY storeViewChanged)
 
     Q_PROPERTY(QObject* scane READ scane WRITE setScane NOTIFY scaneChanged)
-    Q_PROPERTY(int _prepareLvlProgress READ prepareLvlProgress WRITE setPrepareLvlProgress NOTIFY prepareLvlProgressChanged)
 
 public:
     Engine(QObject * parent = nullptr);
@@ -77,18 +81,6 @@ public:
      */
     QObject* world() const;
 
-    /**
-     * @brief prepareLvlProgress This method return rurrent progress of the loading lvl.
-     * @return current progress of loading new level on the world. progress range is 0 - 100 
-     */
-    int prepareLvlProgress() const;
-
-    /**
-     * @brief start This method run current lvl
-     * @return true if lvl started successful.
-     */
-    bool start() const;
-
     /**
      * @brief getGameObject This method using in qml for getting main model of the gui objects.
      * @param id This is id of the gui object.
@@ -112,27 +104,68 @@ public:
      */
     bool isRendering() const;
 
+    /**
+     * @brief currentUser This method return pointer too current user.
+     * @return pointer too current user.
+     */
+    User *currentUser() const;
+
+    /**
+     * @brief storeView This method return pointer to store view model
+     * @return pointer to store view model
+     */
+    QObject *storeView() const;
+
+    /**
+     * @brief initStore This method is wrapper of the Store::init method.
+     * @param availabelItems This is list of available items.
+     */
+    void initStore(const QMultiHash<int, const IItem *> &availabelItems);
+
+    /**
+     * @brief store This pointer return pointer to store.
+     * @return pointer to store.
+     */
+    Store *store() const;
+
+    /**
+     * @brief nest This method return pointer to the nest model.
+     * @return pointer to the nest model.
+     */
+    QObject *nest() const ;
+
 signals:
     void scaneChanged();
     void playerChanged();
     void worldChanged();
+    void storeViewChanged();
 
-    void prepareLvlProgressChanged();
+private slots:
+    /**
+     * @brief start This method run current lvl ( move prepared data from the nest to game world)
+     * @param config This is confuguration that created new game world.
+     * @return true if lvl started successful.
+     */
+    void start(const StartData &config) const;
+
+    /**
+     * @brief stop This slots invoked when world finished own session.
+     */
+    void stop() const;
 
 private:
-    void setPrepareLvlProgress(int newPrepareLvlProgress);
     void renderLoop();
 
-
     QObject *_scane = nullptr;
     QQmlEngine *_engine = nullptr;
-//    IWorld* _currentWorld = nullptr;
     ILevel* _currentLevel = nullptr;
 
-    int _prepareLvlProgress;
-
     quint64 _oldTimeRender = 0;
 
+    User *_currentUser = nullptr;
+    StoreViewModel *_storeView = nullptr;
+    Store *_store = nullptr;
+
     QFuture<void> _renderLoopFuture;
     bool _renderLoop = false;
 };

src/Core/private/mainmenumodel.cpp

@@ -37,8 +37,8 @@ void MainMenuModel::setAvailableLvls(const QList<QObject*> &newData) {
     _availableLvlsModel->setSource(newData);
 }
 
-void MainMenuModel::newGame(const QString &lvl) {
+void MainMenuModel::changeLevel(int lvl) {
-    emit sigNewGame(lvl);
+    emit sigLevelChanged(lvl);
 }
 
 }

src/Core/private/mainmenumodel.h

@@ -36,12 +36,12 @@ public:
     QObject* availableLvlsModel() const;
     void addWorldViewModel(QObject *);
     void setAvailableLvls(const QList<QObject *> &newData);
-    Q_INVOKABLE void newGame(const QString& lvl);
+    Q_INVOKABLE void changeLevel(int lvl);
 
 
 signals:
     void userSettingsModelChanged(QObject* userSettingsModel);
-    void sigNewGame(const QString& lvl);
+    void sigLevelChanged(int lvl);
     void availableLvlsModelChanged();
 
 private:

src/Core/private/store.cpp

@@ -43,4 +43,12 @@ bool Store::init(const QMultiHash<int, const IItem *> &availabelItems) {
 const IItem *Store::getItemById(int id) const {
     return _store.value(id, nullptr);
 }
+
+int Store::size() const {
+    return _store.size();
+}
+
+QList<int> Store::keysList() const {
+    return QList<int>{_store.keyBegin(), _store.keyEnd()};
+}
 }

src/Core/private/store.h

@@ -45,6 +45,18 @@ public:
      */
     const IItem* getItemById(int id) const;
 
+    /**
+     * @brief size This method return count of the available items in store.
+     * @return count of the available items.
+     */
+    int size() const;
+
+    /**
+     * @brief keysList This method return a list of available keys
+     * @return a list of available keys
+     */
+    QList<int> keysList() const;
+
 private:
     QMultiHash<int, const IItem*> _store;
 };

src/Core/private/storeviewmodel.cpp

@@ -0,0 +1,93 @@
+#include "storeviewmodel.h"
+#include "store.h"
+#include "user.h"
+
+#include <Crawl/iitem.h>
+
+namespace CRAWL {
+
+StoreViewModel::StoreViewModel() {
+
+}
+
+QModelIndex StoreViewModel::index(int row, int column, const QModelIndex &parent) const {
+    return QAbstractListModel::index(row, column, parent);
+}
+
+int StoreViewModel::rowCount(const QModelIndex &) const {
+    return _keys.size();
+}
+
+int StoreViewModel::columnCount(const QModelIndex &) const {
+    return 1;
+}
+
+QVariant StoreViewModel::data(const QModelIndex &index, int role) const {
+    if (!_store)
+        return {};
+
+    if (index.row() >= rowCount()) {
+        return {};
+    }
+
+    int id = _keys.at(index.row());
+
+    const IItem* item = _store->getItemById(id);
+
+    if (!item)
+        return {};
+
+    switch (role) {
+    case ItemId: return id;
+    case ItemName: return item->itemName();
+    case ItemImage: return item->image();
+    case ItemDescription: return item->description();
+    case ItemWasBuy: return _currentUser && _currentUser->isUnlocked(id);
+    default:
+        return {};
+    }
+}
+
+QHash<int, QByteArray> StoreViewModel::roleNames() const {
+    QHash<int, QByteArray> roles;
+
+    roles[ItemId] = "itemId";
+    roles[ItemName] = "itemName";
+    roles[ItemDescription] = "itemDescription";
+    roles[ItemImage] = "itemImage";
+    roles[ItemWasBuy] = "itemWasBuy";
+
+    return roles;
+}
+
+void StoreViewModel::init(const Store * store, const User* user) {
+    setUser(user);
+
+    int diff = store->size() - _keys.size();
+
+    if (diff > 0) {
+        beginInsertRows({}, _keys.size(), store->size() - 1);
+
+        _store = store;
+        _keys = store->keysList();
+
+        endInsertRows();
+
+    } else if (diff == 0) {
+        emit dataChanged(index(0,0), index(rowCount() - 1, columnCount() - 1));
+
+    } else  {
+        beginRemoveRows({}, store->size(), _keys.size() - 1);
+
+        _store = store;
+        _keys = store->keysList();
+
+        endRemoveRows();
+    }
+}
+
+void StoreViewModel::setUser(const User *user) {
+    _currentUser = user;
+    emit dataChanged(index(0,0), index(rowCount() - 1, columnCount() - 1), {ItemWasBuy});
+}
+}

src/Core/private/storeviewmodel.h

@@ -0,0 +1,62 @@
+//#
+//# Copyright (C) 2021-2021 QuasarApp.
+//# Distributed under the GPLv3 software license, see the accompanying
+//# Everyone is permitted to copy and distribute verbatim copies
+//# of this license document, but changing it is not allowed.
+//#
+
+#ifndef STOREVIEWMODEL_H
+#define STOREVIEWMODEL_H
+
+#include <QAbstractListModel>
+
+namespace CRAWL {
+
+class Store;
+class User;
+
+/**
+ * @brief The StoreViewModel class This is view model of the store. The object of this class should be initialized it he Store class.
+ */
+class StoreViewModel: public QAbstractListModel
+{
+    Q_OBJECT
+public:
+    StoreViewModel();
+
+    QModelIndex index(int row, int column, const QModelIndex &parent = {}) const override;
+    int rowCount(const QModelIndex &parent = {}) const override;
+    int columnCount(const QModelIndex &parent = {}) const override;
+    QVariant data(const QModelIndex &index, int role) const override;
+    QHash<int, QByteArray> roleNames() const override;
+
+    /**
+     * @brief init This method initialize data of the view model.
+     * @param _store This is poiter to store that contains all inforamtion about store items.
+     * @param user This is new pointer to current user.
+     * @see StoreViewModel::setUser
+     */
+    void init(const Store * store, const User* user);
+
+    /**
+     * @brief setUser This method update user pointer
+     * @param user This is new pointer to current user.
+     */
+    void setUser(const User* user);
+private:
+
+    enum StoreRoles {
+        ItemId,
+        ItemName,
+        ItemImage,
+        ItemDescription,
+        ItemWasBuy
+    };
+
+    const Store *_store = nullptr;
+    QList<int> _keys;
+    const User* _currentUser = nullptr;
+};
+
+}
+#endif // STOREVIEWMODEL_H

src/CrawlAbstractLvl/abstractlevel.cpp

@@ -9,10 +9,9 @@
 #include "abslvlworld.h"
 
 AbstractLevel::AbstractLevel() {
-
-}
-
-CRAWL::IWorld *AbstractLevel::world() {
     initAbstractLvlResources();
-    return new AbstractLvl::AbsLvlWorld();
+
+    setWorld(new AbstractLvl::AbsLvlWorld());
+    setPreviewScane(new AbstractLvl::AbsLvlWorld());
 }
+

src/CrawlAbstractLvl/abstractlevel.h

@@ -19,10 +19,6 @@ inline void initAbstractLvlResources() { Q_INIT_RESOURCE(abstractLevel);
 class CRAWL_ABSTRACT_LEVEL_EXPORT AbstractLevel: public CRAWL::ILevel {
 public:
     AbstractLevel();
-
-    // ILevel interface
-public:
-    CRAWL::IWorld *world() override;
 };
 
 #endif // ABSTRACTLEVEL_H