fixed sleep error on windows and ubuntu

functions.cpp

 
 #include <QMessageBox>
 #include <QMap>
+#include <windows.h>
 #include "functions.h"
 #ifdef _WIN32
 #include <windows.h>
     //This loop is used to simulate the dice rolling by
     //changing the images at a slowing down speed
     for (int i = 0; i<=150000 ; i=i+5000){
+
+#ifdef _WIN32
         Sleep(i);
+#else
+        usleep(i);
+#endif
 
         //First dice image. Since we want random pictures
         //on each iteration, we get a random number, converted
     QString a, b;
 
     for (int i = 0; i<=150000 ; i=i+5000){
+#ifdef _WIN32
         Sleep(i);
-
+#else
+        usleep(i);
+#endif
         a = ":/images/resources/d";
         a.append(QString::number(rand()%6 + 1));
         a.append(".png");
     QString a, b;
 
     for (int i = 0; i<=150000 ; i=i+5000){
+#ifdef _WIN32
         Sleep(i);
-
+#else
+        usleep(i);
+#endif
         a = ":/images/resources/d";
         a.append(QString::number(rand()%6 + 1));
         a.append(".png");
     QString a, b;
 
     for (int i = 0; i<=150000 ; i=i+5000){
+#ifdef _WIN32
         Sleep(i);
-
+#else
+        usleep(i);
+#endif
         a = ":/images/resources/d";
         a.append(QString::number(rand()%6 + 1));
         a.append(".png");