diff --git a/JGE/src/SDLmain.cpp b/JGE/src/SDLmain.cpp
index ec9732666..7e0e64fbc 100644
--- a/JGE/src/SDLmain.cpp
+++ b/JGE/src/SDLmain.cpp
@@ -333,7 +333,8 @@ void DestroyGame(void)
 
 void SdlApp::OnUpdate()
 {
-  static int tickCount = JGEGetTime();
+  static int tickCount = 0;
+  tickCount = JGEGetTime();
   int64_t dt = (tickCount - lastTickCount);
   lastTickCount = tickCount;
 
diff --git a/projects/mtg/include/ActionLayer.h b/projects/mtg/include/ActionLayer.h
index 7f7cf059e..84d9907b0 100644
--- a/projects/mtg/include/ActionLayer.h
+++ b/projects/mtg/include/ActionLayer.h
@@ -46,10 +46,14 @@ public:
     TargetChooser * getCurrentTargetChooser();
     void setCurrentWaitingAction(ActionElement * ae);
     MTGAbility * getAbility(int type);
+    
     //Removes from game but does not move the element to garbage. The caller must take care of deleting the element.
     int removeFromGame(ActionElement * e);
-    int moveToGarbage(ActionElement * e);
-    int cleanGarbage();
+    
+    bool moveToGarbage(ActionElement * e);
+    
+    void cleanGarbage();
+
 protected:
     ActionElement * currentWaitingAction;
     int cantCancel;
diff --git a/projects/mtg/include/MTGGameZones.h b/projects/mtg/include/MTGGameZones.h
index d92fd11cf..8fc0f9efd 100644
--- a/projects/mtg/include/MTGGameZones.h
+++ b/projects/mtg/include/MTGGameZones.h
@@ -89,14 +89,18 @@ class MTGGameZone {
    int countByType(const char * value);
    int countByCanTarget(TargetChooser * tc);
    MTGCardInstance * findByName(string name);
-   int hasAbility(int ability); //returns 1 if one of the cards in the  zone has the ability, 0 otherwise
-   int hasType(const char * value); //returns 1 if one of the cards in the zone has the type, 0 otherwise
-   int hasSpecificType(const char * value,const char * secondvalue); //returns 1 if one of the cards in the zone has the type, 0 otherwise
-   int hasPrimaryType(const char * value,const char * secondvalue); //returns 1 if one of the cards in the zone has the type, 0 otherwise
-   int hasTypeButNotType(const char * value,const char * secondvalue); //returns 1 if one of the cards in the zone has the type, 0 otherwise
-   int hasName(string value);
-   int hasColor(int value); //returns 1 if one of the cards in the zone has the color, 0 otherwise
-   int hasX();
+
+    //returns true if one of the cards in the zone has the ability
+   bool hasAbility(int ability);
+
+   //returns true if one of the cards in the zone has the type
+   bool hasType(const char * value);
+   bool hasSpecificType(const char* value, const char* secondvalue);
+   bool hasPrimaryType(const char* value, const char* secondvalue);
+   bool hasTypeButNotType(const char* value, const char* secondvalue);
+   bool hasName(string value);
+   bool hasColor(int value);
+   bool hasX();
 
    //How many cards matching a TargetChooser have been put in this zone during the turn
    int seenThisTurn(TargetChooser * tc, int castFilter = Constants::CAST_DONT_CARE); 
diff --git a/projects/mtg/src/ActionLayer.cpp b/projects/mtg/src/ActionLayer.cpp
index d9d118b0b..6a54dc08e 100644
--- a/projects/mtg/src/ActionLayer.cpp
+++ b/projects/mtg/src/ActionLayer.cpp
@@ -38,25 +38,24 @@ int ActionLayer::removeFromGame(ActionElement * e)
 
 }
 
-int ActionLayer::moveToGarbage(ActionElement * e)
+bool ActionLayer::moveToGarbage(ActionElement * e)
 {
     if (removeFromGame(e))
     {
         garbage.push_back(e);
-        return 1;
+        return true;
     }
-    return 0;
+    return false;
 
 }
 
-int ActionLayer::cleanGarbage()
+void ActionLayer::cleanGarbage()
 {
     for (size_t i = 0; i < garbage.size(); ++i)
     {
         delete (garbage[i]);
     }
     garbage.clear();
-    return 1;
 }
 
 int ActionLayer::reactToClick(ActionElement * ability, MTGCardInstance * card)
diff --git a/projects/mtg/src/MTGGameZones.cpp b/projects/mtg/src/MTGGameZones.cpp
index 6ceae0c5e..f3a68cbc5 100644
--- a/projects/mtg/src/MTGGameZones.cpp
+++ b/projects/mtg/src/MTGGameZones.cpp
@@ -532,79 +532,79 @@ MTGCardInstance * MTGGameZone::findByName(string name)
     return NULL;
 }
 
-int MTGGameZone::hasType(const char * value)
+bool MTGGameZone::hasType(const char * value)
 {
     for (int i = 0; i < (nb_cards); i++)
     {
         if (cards[i]->hasType(value))
         {
-            return 1;
+            return true;
         }
     }
-    return 0;
+    return false;
 }
 
-int MTGGameZone::hasPrimaryType(const char * value,const char * secondvalue)
+bool MTGGameZone::hasPrimaryType(const char * value,const char * secondvalue)
 {
     for (int i = 0; i < (nb_cards); i++)
     {
         if (cards[i]->hasType(value) && cards[i]->hasType(secondvalue))
         {
-            return 1;
+            return true;
         }
     }
     return 0;
 }
 
-int MTGGameZone::hasSpecificType(const char * value,const char * secondvalue)
+bool MTGGameZone::hasSpecificType(const char * value,const char * secondvalue)
 {
     for (int i = 0; i < (nb_cards); i++)
     {
         if (cards[i]->hasType(value) && cards[i]->hasSubtype(secondvalue))
         {
-            return 1;
+            return true;
         }
     }
-    return 0;
+    return false;
 }
 
-int MTGGameZone::hasTypeButNotType(const char * value,const char * secondvalue)
+bool MTGGameZone::hasTypeButNotType(const char * value,const char * secondvalue)
 {
     for (int i = 0; i < (nb_cards); i++)
     {
         if (cards[i]->hasType(value) && cards[i]->hasSubtype(value) && !cards[i]->hasType(secondvalue) && !cards[i]->hasSubtype(secondvalue))
         {
-            return 1;
+            return true;
         }
     }
-    return 0;
+    return false;
 }
 
-int MTGGameZone::hasName(string value)
+bool MTGGameZone::hasName(string value)
 {
     for (int i = 0; i < (nb_cards); i++)
     {
         if (cards[i]->name == value)
         {
-            return 1;
+            return true;
         }
     }
-    return 0;
+    return false;
 }
 
-int MTGGameZone::hasColor(int value)
+bool MTGGameZone::hasColor(int value)
 {
     for (int i = 0; i < (nb_cards); i++)
     {
 			if (cards[i]->getManaCost()->hasColor(value) && cards[i]->getManaCost()->getConvertedCost() > 0)
         {
-            return 1;
+            return true;
         }
     }
-    return 0;
+    return false;
 }
 
-int MTGGameZone::hasX()
+bool MTGGameZone::hasX()
 {
     for (int i = 0; i < (nb_cards); i++)
     {
@@ -616,16 +616,16 @@ int MTGGameZone::hasX()
     return false;
 }
 
-int MTGGameZone::hasAbility(int ability)
+bool MTGGameZone::hasAbility(int ability)
 {
     for (int i = 0; i < (nb_cards); i++)
     {
         if (cards[i]->basicAbilities[ability])
         {
-            return 1;
+            return true;
         }
     }
-    return 0;
+    return false;
 }
 
 int MTGGameZone::seenThisTurn(TargetChooser * tc, int castMethod)