diff --git a/.gitignore b/.gitignore
index 75c107b..5c0a0da 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,4 @@
 *.pro.user
+cmake-build-debug
+.idea
+cmake-build-debug-visual-studio
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..74bd1a6
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,28 @@
+cmake_minimum_required(VERSION 3.22)
+project(ProtocolDeveloppement)
+
+set(CMAKE_CXX_STANDARD 14)
+
+#set(CMAKE_PREFIX_PATH "/Qt/6.5.0/android_arm64_v8a/lib/cmake")
+#set(CMAKE_PREFIX_PATH "D:/programme/Qt/6.5.0/mingw_64/lib/cmake")
+
+
+find_package(Qt6Widgets REQUIRED)
+find_package(Qt6Network REQUIRED)
+find_package(Qt6Gui REQUIRED)
+
+add_executable(${PROJECT_NAME}
+        main.cpp
+        stompframe.cpp
+        stomp.cpp
+        app.cpp
+        Vector2D.cpp
+)
+
+link_directories( ${PCL_LIBRARY_DIRS} )
+
+target_link_libraries(${PROJECT_NAME}
+        Qt6::Network
+        Qt6::Gui
+        Qt6::Widgets
+)
diff --git a/Vector2D.cpp b/Vector2D.cpp
new file mode 100644
index 0000000..b2889e8
--- /dev/null
+++ b/Vector2D.cpp
@@ -0,0 +1,49 @@
+#include "Vector2D.h"
+
+Vector2D::Vector2D(Point point) {
+    point_.x = point.x;
+    point_.y = point.y;
+    lenght_ = sqrt(pow(point.x, 2) + pow(point.y, 2));
+    angle_ = atan2(point.y, point.x);
+}
+
+Vector2D::Vector2D(double lenght, double angle) {
+    lenght_ = lenght;
+    angle_ = angle;
+    point_.x = lenght * cos(angle);
+    point_.y = lenght * sin(angle);
+}
+
+Vector2D::Point Vector2D::CreatePoint(double x, double y) {
+    Point p;
+    p.x = x;
+    p.y = y;
+    return p;
+}
+
+void Vector2D::normalize(double max) {
+    lenght_ = (1/lenght_);
+    point_.x = lenght_ * cos(angle_);
+    point_.y = lenght_ * sin(angle_);
+}
+
+Vector2D Vector2D::reverse() {
+    Point p;
+    p.x = -point_.x;
+    p.y = -point_.y;
+    return Vector2D(p);
+}
+
+Vector2D Vector2D::operator +(Vector2D v) const {
+    Point p;
+    p.x = point_.x + v.x();
+    p.y = point_.y + v.y();
+    return Vector2D(p);
+}
+
+Vector2D Vector2D::operator -(Vector2D v) const {
+    Point p;
+    p.x = point_.x - v.x();
+    p.y = point_.y - v.y();
+    return Vector2D(p);
+}
\ No newline at end of file
diff --git a/Vector2D.h b/Vector2D.h
new file mode 100644
index 0000000..2997e03
--- /dev/null
+++ b/Vector2D.h
@@ -0,0 +1,41 @@
+#ifndef VECTOR2D_H
+#define VECTOR2D_H
+
+#include <cmath>
+
+class Vector2D {
+
+public:
+    typedef struct {
+        double x;
+        double y;
+    } Point;
+    Vector2D() = default;
+    Vector2D(Point point);
+    Vector2D(double lenght, double angle);
+    ~Vector2D() = default;
+
+    static Point CreatePoint(double x, double y);
+
+    double x() {return point_.x;}
+    double y() {return point_.y;}
+    Point point() {return point_;}
+    double lenght() {return lenght_;}
+    double angle() {return angle_;}
+
+    void normalize(double max);
+    Vector2D reverse();
+
+    Vector2D operator +(Vector2D v) const;
+    Vector2D operator -(Vector2D v) const;
+
+private:
+    Point point_;
+    double lenght_;
+    double angle_;
+
+};
+
+
+
+#endif //VECTOR2D_H
diff --git a/app.cpp b/app.cpp
new file mode 100644
index 0000000..6c7bea6
--- /dev/null
+++ b/app.cpp
@@ -0,0 +1,149 @@
+#include "app.h"
+
+
+App::App(Stomp* st) {
+    st_ = st;
+    st_->connectRequest("sdi.hevs.ch", 61614, "/", "sdi10", "809c02f36becb0868da98761fe3209f6");
+    st_->subscribeRequest("/topic/sdi10.gem.field", 1);
+
+}
+
+void App::connectConfirmation(bool success, QString version) {
+
+}
+
+void App::sendConfirmation(bool success) {
+
+}
+
+void App::subscribeConfirmation(bool success) {
+}
+
+void App::receiveIndication(int id, QString destination, QString body) {
+    //qDebug() << "Indication " << id << " : " << destination << Qt::endl << body << Qt::endl;
+    if(destination.contains("field")){
+        fillField(body);
+    }
+    computeMove();
+}
+
+void App::disconnectConfirmation() {
+
+}
+
+void App::disconnectIndication() {
+
+}
+
+void App::addGem(int x, int y, int pts) {
+    Gem g;
+    g.coordinate = Vector2D(Vector2D::CreatePoint(x, GRID_SIZE-y));
+    g.pts = pts;
+    gems_.append(g);
+}
+
+void App::fillField(QString body) {
+    int x = 0;
+    int y = 0;
+    gems_.clear();
+    for(int i = 0; i<body.length(); i++) {
+        const QChar c = body.at(i);
+        if(c == 'Y') {
+            myVehicle_ = Vector2D(Vector2D::CreatePoint(x, GRID_SIZE-y));
+        }
+        if(c == 'h') {
+            otherVehicles_.append(Vector2D(Vector2D::CreatePoint(x, GRID_SIZE-y)));
+        }
+        if(c == 'g') addGem(x, y, 100);
+        if(c == 'G') addGem(x, y, 250);
+        if(c == 'D') addGem(x, y, 500);
+        if(c == '\n') {
+            y++;
+            x = 0;
+        } else {
+            x++;
+        }
+    }
+}
+
+Vector2D App::computeRelativePts(Gem g) {
+    Vector2D v = g.coordinate-myVehicle_;
+    v.reverse();
+    v.normalize(MAX_LENGHT);
+
+    return Vector2D(v.lenght()*g.pts, v.angle());
+}
+
+void App::computeRelativeDistance(Gem* g) {
+    int deltaX = abs(g->coordinate.x() - myVehicle_.x());
+    int deltaY = abs(g->coordinate.y() - myVehicle_.y());
+    g->relativeDistanceToMe = deltaX+deltaY;
+    g->relativeDistanceToOtherPlayer = MAX_LENGHT*2;
+    for(Vector2D v : otherVehicles_) {
+        deltaX = abs(g->coordinate.x() - v.x());
+        deltaY = abs(g->coordinate.y() - v.y());
+        if(deltaX+deltaY < g->relativeDistanceToOtherPlayer) {
+            g->relativeDistanceToOtherPlayer = deltaX+deltaY;
+        }
+    }
+}
+
+void App::computeMove() {
+    static const double PI = 3.14159265358979323846;
+    Vector2D myRelativePts;
+    for(Gem g : gems_) {
+        computeRelativeDistance(&g);
+        Vector2D v = computeRelativePts(g);
+        myRelativePts = myRelativePts+v;
+        if(g.relativeDistanceToMe <= g.relativeDistanceToOtherPlayer) {
+            myRelativePts = myRelativePts+v;
+        }
+    }
+    double angle = myRelativePts.angle();
+
+    if(angle <0) angle = angle+2*PI;
+    angle *= 180/PI;
+
+    qDebug() << "Angle: " << angle << "°";
+    qDebug() << "Length: " << myRelativePts.lenght() << Qt::endl;
+
+    if(angle > 360) {
+        qDebug() << "Error angle: " << angle << Qt::endl;
+    }
+    else if(angle <= -360) {
+        qDebug() << "Error angle: " << angle << Qt::endl;
+    }
+
+    else if(angle > 315) { // angle > 315°
+        st_->sendRequest("/topic/sdi10.gem.command", "right");
+    }
+    else if(angle <= -315) { // angle <= -315° || angle <= 45°
+        st_->sendRequest("/topic/sdi10.gem.command", "right");
+    }
+
+    else if(angle > 225) { // angle > 225°
+        st_->sendRequest("/topic/sdi10.gem.command", "down");
+    }
+    else if(angle <= -225) { // angle <= -225° || angle <= 135°
+        st_->sendRequest("/topic/sdi10.gem.command", "up");
+    }
+
+    else if(angle > 135) { // angle > 135°
+        st_->sendRequest("/topic/sdi10.gem.command", "left");
+    }
+    else if(angle <= -135) { // angle <= -135° || angle <= 225°
+        st_->sendRequest("/topic/sdi10.gem.command", "left");
+    }
+
+    else if(angle > 45) { // angle > 45°
+        st_->sendRequest("/topic/sdi10.gem.command", "up");
+    }
+    else if(angle <= -45) { // angle <= -45° || angle <= 315°
+        st_->sendRequest("/topic/sdi10.gem.command", "down");
+    }
+
+    else {
+        st_->sendRequest("/topic/sdi10.gem.command", "right");
+    }
+}
+
diff --git a/app.h b/app.h
new file mode 100644
index 0000000..52e558d
--- /dev/null
+++ b/app.h
@@ -0,0 +1,57 @@
+#ifndef APP_H
+#define APP_H
+
+#include <QObject>
+#include "interface/iStompObserver.h"
+#include "stomp.h"
+#include <QVector2D>
+#include <cmath>
+
+#include "Vector2D.h"
+
+#define GRID_SIZE 32
+
+
+class App : public QObject, public interface::iStompObserver {
+public:
+    App(Stomp* st);
+    ~App() = default;
+
+    const double MAX_LENGHT = sqrt(GRID_SIZE*GRID_SIZE + GRID_SIZE*GRID_SIZE);
+    // iStompObserver interface
+private:
+    void connectConfirmation(bool success, QString version);
+    void sendConfirmation(bool success);
+    void subscribeConfirmation(bool success);
+    void receiveIndication(int id, QString destination, QString body);
+    void disconnectConfirmation();
+    void disconnectIndication();
+
+protected:
+    Stomp* st_;
+
+    typedef struct {
+        Vector2D coordinate;
+        int relativeDistanceToMe;
+        int relativeDistanceToOtherPlayer;
+        int pts;
+    } Gem;
+
+    typedef struct {
+        int x;
+        int y;
+        bool me;
+    } Vehicle;
+
+    QVector<Gem> gems_;
+    Vector2D myVehicle_;
+    QVector<Vector2D> otherVehicles_;
+    void addGem(int x, int y, int pts);
+    void fillField(QString body);
+    Vector2D computeRelativePts(Gem g);
+    void computeRelativeDistance(Gem* g);
+    void computeMove();
+
+};
+
+#endif // APP_H
diff --git a/interface/iStompObserver.h b/interface/iStompObserver.h
new file mode 100644
index 0000000..28185a6
--- /dev/null
+++ b/interface/iStompObserver.h
@@ -0,0 +1,24 @@
+#ifndef ISTOMPOBSERVER_H
+#define ISTOMPOBSERVER_H
+
+#include <QString>
+
+namespace interface {
+class iStompObserver {
+
+public:
+    virtual ~iStompObserver() {}
+
+protected:
+    iStompObserver() {}
+
+public:
+    virtual void connectConfirmation(bool success, QString version) = 0;
+    virtual void sendConfirmation(bool success) = 0;
+    virtual void subscribeConfirmation(bool success) = 0;
+    virtual void receiveIndication(int id, QString destination, QString body) = 0;
+    virtual void disconnectConfirmation() = 0;
+    virtual void disconnectIndication() = 0;
+};
+}
+#endif // ISTOMPOBSERVER_H
diff --git a/interface/iStompSubject.h b/interface/iStompSubject.h
new file mode 100644
index 0000000..1924fd6
--- /dev/null
+++ b/interface/iStompSubject.h
@@ -0,0 +1,36 @@
+#ifndef ISTOMPSUBJECT_H
+#define ISTOMPSUBJECT_H
+
+#include "iStompObserver.h"
+#include <QString>
+
+namespace interface {
+class iStompSubject {
+
+public:
+    virtual ~iStompSubject() {}
+
+protected:
+    iStompSubject() {}
+
+public:
+    virtual bool subscribe(iStompObserver* obs) = 0;
+    virtual void unsubscribe(iStompObserver* obs) = 0;
+
+    virtual int connectRequest(QString host, int port, QString vhost, QString username, QString password) = 0;
+    virtual void sendRequest(QString destination, const QByteArray& body) = 0;
+    virtual void subscribeRequest(QString destination, int id) = 0;
+    virtual void disconnectRequest() = 0;
+
+protected:
+    virtual void notifyConnectConfirmation(bool success, QString version) = 0;
+    virtual void notifySendConfirmation(bool success) = 0;
+    virtual void notifySubscribeConfirmation(bool success) = 0;
+    virtual void notifyReceiveIndication(int id, QString destination, QString body) = 0;
+    virtual void notifyDisconnectConfirmation() = 0;
+    virtual void notifyDisconnectIndication() = 0;
+
+};
+} // namespace
+
+#endif // ISTOMPSUBJECT_H
diff --git a/main.cpp b/main.cpp
index bf2b52a..8439daf 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,7 +1,16 @@
 #include <QApplication>
+#include <QSslSocket>
+#include <QThread>
+
+#include "stomp.h"
+#include "app.h"
 
 int main(int argc, char *argv[]) {
     QApplication application(argc, argv);
-    
+
+    Stomp st;
+    App app(&st);
+    st.subscribe(&app);
+
     return application.exec();
 }
diff --git a/stomp.cpp b/stomp.cpp
new file mode 100644
index 0000000..38a4616
--- /dev/null
+++ b/stomp.cpp
@@ -0,0 +1,157 @@
+#include "stomp.h"
+
+Stomp::Stomp() {
+    for(int i = 0; i< MAX_OBSERVER; i++) {
+        observer_[i] = nullptr;
+    }
+    socket_.setPeerVerifyMode(QSslSocket::VerifyNone);
+    QObject::connect(&socket_, &QSslSocket::readyRead, [&] {
+       STOMPFrame frame = STOMPFrame::receive(socket_);
+
+       switch(frame.command()) {
+       case STOMPFrame::CONNECTED:
+           qDebug() << "Connected !" << Qt::endl
+                   << "Version:" << frame.headers().value("version");
+           notifyConnectConfirmation(true,frame.headers().value("version"));
+           break;
+
+       case STOMPFrame::MESSAGE:
+           notifyReceiveIndication(1, frame.headers().value("destination"), frame.body());
+           //qDebug() << "Message" << Qt::endl;
+           break;
+
+       case STOMPFrame::RECEIPT:
+           notifySendConfirmation(true);
+           qDebug() << "Succesfully send" << Qt::endl;
+           break;
+
+       case STOMPFrame::ERROR:
+           notifyConnectConfirmation(false,frame.headers().value("version"));
+           notifySendConfirmation(false);
+           qDebug() << Qt::endl
+                    << "-----ERROR-----" << Qt::endl
+                    << "Command: " << frame.command() << Qt::endl
+                    << "Header: " << frame.headers() << Qt::endl
+                    << "Body: " << frame.body() << Qt::endl
+                    << Qt::endl;
+           break;
+
+       default:
+           qDebug() << Qt::endl
+                    << "-----Other STOMP frame-----" << Qt::endl
+                    << "Command: " << frame.command() << Qt::endl
+                    << "Header: " << frame.headers() << Qt::endl
+                    << "Body: " << frame.body() << Qt::endl
+                    << Qt::endl;
+           break;
+
+       }
+    });
+}
+
+Stomp::~Stomp() {
+
+}
+
+
+bool Stomp::subscribe(interface::iStompObserver* obs) {
+    for(int i = 0; i < MAX_OBSERVER; i++) {
+        if (observer_[i] == nullptr) {
+            observer_[i] = obs;
+            return true;
+        }
+    }
+    return false;
+}
+
+void Stomp::unsubscribe(interface::iStompObserver* obs) {
+    for(int i = 0; i < MAX_OBSERVER; i++) {
+        if(observer_[i] == obs) {
+            observer_[i] = nullptr;
+        }
+    }
+}
+
+int Stomp::connectRequest(QString host, int port, QString vhost, QString username, QString password) {
+
+    socket_.connectToHostEncrypted(host, port);
+    if(!socket_.waitForConnected()) return -1;
+
+    STOMPFrame(STOMPFrame::STOMP, {
+        {"accept-version", "1.2"},
+        {"host", vhost},
+        {"login", username},
+        {"passcode", password}
+    }).send(socket_);
+
+    return 0;
+
+}
+
+void Stomp::sendRequest(QString destination, const QByteArray& body) {
+
+    STOMPFrame(STOMPFrame::SEND, {
+       {"destination", destination},
+    }, body).send(socket_);
+}
+
+void Stomp::subscribeRequest(QString destination, int id) {
+    QString sid = QString::number(id);
+    STOMPFrame(STOMPFrame::SUBSCRIBE, {
+        {"destination", destination},
+        {"id", sid}
+    }).send(socket_);
+}
+
+void Stomp::disconnectRequest() {
+
+}
+
+void Stomp::notifyConnectConfirmation(bool success, QString version) {
+    for(int i = 0; i < MAX_OBSERVER; i++) {
+        if (observer_[i] != nullptr){
+            observer_[i]->connectConfirmation(success, version);
+        }
+    }
+}
+
+void Stomp::notifySendConfirmation(bool success) {
+    for(int i = 0; i < MAX_OBSERVER; i++) {
+        if (observer_[i] != nullptr){
+            observer_[i]->sendConfirmation(success);
+        }
+    }
+}
+
+void Stomp::notifySubscribeConfirmation(bool success) {
+    for(int i = 0; i < MAX_OBSERVER; i++) {
+        if (observer_[i] != nullptr){
+            observer_[i]->subscribeConfirmation(success);
+        }
+    }
+}
+
+void Stomp::notifyReceiveIndication(int id, QString destination, QString body) {
+    for(int i = 0; i < MAX_OBSERVER; i++) {
+        if (observer_[i] != nullptr){
+            observer_[i]->receiveIndication(id, destination, body);
+        }
+    }
+}
+
+void Stomp::notifyDisconnectConfirmation() {
+    for(int i = 0; i < MAX_OBSERVER; i++) {
+        if (observer_[i] != nullptr){
+            observer_[i]->disconnectConfirmation();
+        }
+    }
+}
+
+void Stomp::notifyDisconnectIndication() {
+    for(int i = 0; i < MAX_OBSERVER; i++) {
+        if (observer_[i] != nullptr){
+            observer_[i]->disconnectIndication();
+        }
+    }
+}
+
diff --git a/stomp.h b/stomp.h
new file mode 100644
index 0000000..201ab7d
--- /dev/null
+++ b/stomp.h
@@ -0,0 +1,46 @@
+#ifndef STOMP_H
+#define STOMP_H
+
+#include <QObject>
+#include "interface/iStompSubject.h"
+#include <QSslSocket>
+#include "stompframe.h"
+
+#define MAX_OBSERVER 5
+
+class Stomp : public QObject, public interface::iStompSubject{
+public:
+    Stomp();
+    ~Stomp();
+
+
+    // iStompSubject interface
+public:
+    bool subscribe(interface::iStompObserver* obs);
+    void unsubscribe(interface::iStompObserver* obs);
+    int connectRequest(QString host, int port, QString vhost, QString username, QString password);
+    void sendRequest(QString destination, const QByteArray& body);
+    void subscribeRequest(QString destination, int id);
+    void disconnectRequest();
+
+protected:
+    void notifyConnectConfirmation(bool success, QString version);
+    void notifySendConfirmation(bool success);
+    void notifySubscribeConfirmation(bool success);
+    void notifyReceiveIndication(int id, QString destination, QString body);
+    void notifyDisconnectConfirmation();
+    void notifyDisconnectIndication();
+
+protected:
+    interface::iStompObserver* observer_[MAX_OBSERVER];
+
+private:
+    QSslSocket socket_;
+    QString host_ = "sdi.hevs.ch";
+    QString vHost_ = "/";
+    int port_ = 61614;
+    QString user_ = "sdi10";
+    QString password_ = "809c02f36becb0868da98761fe3209f6";
+};
+
+#endif // STOMP_H
diff --git a/stompframe.cpp b/stompframe.cpp
index 0b40080..9e8b8d0 100644
--- a/stompframe.cpp
+++ b/stompframe.cpp
@@ -2,21 +2,26 @@
 
 STOMPFrame::STOMPFrame(Command command, std::initializer_list<QPair<QString, QString>> headers, const QByteArray& body):
     command_(command), body_(body) {
+
     for (const auto& header: headers) {
         headers_[header.first] = header.second;
     }
 }
 
 qint64 STOMPFrame::send(QIODevice& device) {
+
     QByteArray encoded;
     QTextStream out {&encoded};
     out << command_ << "\n";
+
     for (const auto& key: headers_.keys()) {
         out << key << ":" << headers_[key] << "\n";
     }
+
     if (!headers_.contains("content-length")) {
         out << "content-length" << ":" << body_.size() << "\n";
     }
+
     out << "\n" << body_ << '\0';
     out.flush();
     return device.write(encoded);