use vector for choose direction

app.h

@@ -5,12 +5,19 @@
 #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);
@@ -20,14 +27,12 @@ private:
     void disconnectConfirmation();
     void disconnectIndication();
 
-private:
+protected:
     Stomp* st_;
 
     typedef struct {
-        int x;
-        int y;
+        Vector2D coordinate;
         int pts;
-        QVector2D relativePts;
     } Gem;
 
     typedef struct {
@@ -37,11 +42,10 @@ private:
     } Vehicle;
 
     QVector<Gem> gems_;
-    Vehicle myVehicle_;
+    Vector2D myVehicle_;
     void addGem(int x, int y, int pts);
-    void printGem();
     void fillField(QString body);
-    QVector2D computeRelativePts(Gem g);
+    Vector2D computeRelativePts(Gem g);
     void computeMove();
 
 };