diff --git a/projects/mtg/include/ManaCost.h b/projects/mtg/include/ManaCost.h
index 6a24f274e..f98bcaf82 100644
--- a/projects/mtg/include/ManaCost.h
+++ b/projects/mtg/include/ManaCost.h
@@ -15,7 +15,7 @@ class ManaCost{
  protected:
   int cost[Constants::MTG_NB_COLORS+1];
   ManaCostHybrid * hybrids[10];
-  int nbhybrids;
+  unsigned int nbhybrids;
   
  public:
   ExtraCosts * extraCosts;
diff --git a/projects/mtg/src/ExtraCost.cpp b/projects/mtg/src/ExtraCost.cpp
index 1edb8a061..22fa1992e 100644
--- a/projects/mtg/src/ExtraCost.cpp
+++ b/projects/mtg/src/ExtraCost.cpp
@@ -1,119 +1,119 @@
-#include "../include/ExtraCost.h"
-#include "../include/TargetChooser.h"
-#include "../include/MTGCardInstance.h"
-#include <JGE.h>
-
-ExtraCost::ExtraCost( TargetChooser *_tc):tc(_tc){
-
-}
-
-
-int ExtraCost::setSource(MTGCardInstance * _source){
-  source=_source; 
-  if (tc){ tc->source = _source;} 
-  return 1;
-}
-
-SacrificeCost::SacrificeCost(TargetChooser *_tc):ExtraCost(_tc){
-  target = NULL;
-}
-
-int SacrificeCost::setSource(MTGCardInstance * card){
-  ExtraCost::setSource(card);
-  if (!tc) target = card;
-  return 1;
-}
-
-int SacrificeCost::setPayment(MTGCardInstance * card){
-  if (tc) {
-    int result = tc->addTarget(card);
-    if (result) {
-      target = card;
-      return result;
-    }
-  }
-  return 0;
-}
-
-int SacrificeCost::isPaymentSet(){
-  if (target) return 1;
-  return 0;
-}
-
+#include "../include/ExtraCost.h"
+#include "../include/TargetChooser.h"
+#include "../include/MTGCardInstance.h"
+#include <JGE.h>
+
+ExtraCost::ExtraCost( TargetChooser *_tc):tc(_tc){
+
+}
+
+
+int ExtraCost::setSource(MTGCardInstance * _source){
+  source=_source;
+  if (tc){ tc->source = _source;}
+  return 1;
+}
+
+SacrificeCost::SacrificeCost(TargetChooser *_tc):ExtraCost(_tc){
+  target = NULL;
+}
+
+int SacrificeCost::setSource(MTGCardInstance * card){
+  ExtraCost::setSource(card);
+  if (!tc) target = card;
+  return 1;
+}
+
+int SacrificeCost::setPayment(MTGCardInstance * card){
+  if (tc) {
+    int result = tc->addTarget(card);
+    if (result) {
+      target = card;
+      return result;
+    }
+  }
+  return 0;
+}
+
+int SacrificeCost::isPaymentSet(){
+  if (target) return 1;
+  return 0;
+}
+
 int SacrificeCost::doPay(){
   if(target){
-	  target->controller()->game->putInGraveyard(target);
-    return 1;
-  }
-  return 0;
-}
-
-void SacrificeCost::Render(){
-  //TODO : real stuff
+	  target->controller()->game->putInGraveyard(target);
+    return 1;
+  }
+  return 0;
+}
+
+void SacrificeCost::Render(){
+  //TODO : real stuff
   JLBFont * mFont = GameApp::CommonRes->GetJLBFont(Constants::MAIN_FONT);
   mFont->SetScale(DEFAULT_MAIN_FONT_SCALE);
   char buffer[200];
   sprintf(buffer, "sacrifice");
-  mFont->DrawString(buffer, 20 ,20, JGETEXT_LEFT);
-}
-
-//
-//Container
-//
-ExtraCosts::ExtraCosts(){
-  action = NULL;
-  source = NULL;
-}
-
-void ExtraCosts::Render(){
-  //TODO cool window and stuff...
-  for (int i=0; i < costs.size(); i++){
-    costs[i]->Render();
-  }
-}
-
-int ExtraCosts::setAction(MTGAbility * _action, MTGCardInstance * _card){
-  action = _action;
-  source = _card;
-  for (int i=0; i < costs.size(); i++){
-    costs[i]->setSource(_card);
-  }
-  return 1;
-}
-
-int ExtraCosts::reset(){
-  action = NULL;
-  source = NULL;
-  //TODO set all payments to "unset"
-  return 1;
-}
-
-int ExtraCosts::tryToSetPayment(MTGCardInstance * card){
-  for (int i=0; i < costs.size(); i++){
-    if (int result = costs[i]->setPayment(card)) return result;
-  }
-  return 0;
-}
-
-int ExtraCosts::isPaymentSet(){
-  for (int i=0; i < costs.size(); i++){
-    if (!costs[i]->isPaymentSet()) return 0;
-  }
-  return 1; 
-}
-
-int ExtraCosts::doPay(){
-  int result = 0;
-  for (int i=0; i < costs.size(); i++){
-    result+=costs[i]->doPay();
-  }
-  return result; 
-}
-void ExtraCosts::Dump(){
-#ifdef WIN32
-  char buf[4096];
-  OutputDebugString("=====\nDumping ExtraCosts=====\n");
-  sprintf(buf, "NbElements : %i\n", costs.size());
-  OutputDebugString(buf);
-#endif
-}
\ No newline at end of file
+  mFont->DrawString(buffer, 20 ,20, JGETEXT_LEFT);
+}
+
+//
+//Container
+//
+ExtraCosts::ExtraCosts(){
+  action = NULL;
+  source = NULL;
+}
+
+void ExtraCosts::Render(){
+  //TODO cool window and stuff...
+  for (size_t i = 0; i < costs.size(); i++){
+    costs[i]->Render();
+  }
+}
+
+int ExtraCosts::setAction(MTGAbility * _action, MTGCardInstance * _card){
+  action = _action;
+  source = _card;
+  for (size_t i = 0; i < costs.size(); i++){
+    costs[i]->setSource(_card);
+  }
+  return 1;
+}
+
+int ExtraCosts::reset(){
+  action = NULL;
+  source = NULL;
+  //TODO set all payments to "unset"
+  return 1;
+}
+
+int ExtraCosts::tryToSetPayment(MTGCardInstance * card){
+  for (size_t i = 0; i < costs.size(); i++){
+    if (int result = costs[i]->setPayment(card)) return result;
+  }
+  return 0;
+}
+
+int ExtraCosts::isPaymentSet(){
+  for (size_t i = 0; i < costs.size(); i++){
+    if (!costs[i]->isPaymentSet()) return 0;
+  }
+  return 1;
+}
+
+int ExtraCosts::doPay(){
+  int result = 0;
+  for (size_t i = 0; i < costs.size(); i++){
+    result+=costs[i]->doPay();
+  }
+  return result;
+}
+void ExtraCosts::Dump(){
+#ifdef WIN32
+  char buf[4096];
+  OutputDebugString("=====\nDumping ExtraCosts=====\n");
+  sprintf(buf, "NbElements : %i\n", costs.size());
+  OutputDebugString(buf);
+#endif
+}
diff --git a/projects/mtg/src/ManaCost.cpp b/projects/mtg/src/ManaCost.cpp
index 122b55f91..0ac585d8e 100644
--- a/projects/mtg/src/ManaCost.cpp
+++ b/projects/mtg/src/ManaCost.cpp
@@ -59,8 +59,8 @@ ManaCost * ManaCost::parseManaCost(string s, ManaCost * _manaCost){
     OutputDebugString("Sacrifice\n");
     TargetChooserFactory tcf;
     TargetChooser * tc = NULL;
-    int target_start = value.find("(");
-    int target_end = value.find(")");
+    size_t target_start = value.find("(");
+    size_t target_end = value.find(")");
     if (target_start!=string::npos && target_end!=string::npos){
       string target = value.substr(target_start+1, target_end-1 - target_start);
       tc = tcf.createTargetChooser(target,NULL);