diff --git a/src/decblupi.cxx b/src/decblupi.cxx
index 7aff47c..f6f21e3 100644
--- a/src/decblupi.cxx
+++ b/src/decblupi.cxx
@@ -2013,7 +2013,7 @@ CDecor::GoalNextOp (Sint32 rank, Sint16 * pTable)
     m_blupi[rank].cel = cel;
     BlupiPushFog (rank);
     if (m_blupi[rank].bHili)
-      SetCoin (cel, true);
+      SetCorner (cel, true);
     return true;
   }
 
diff --git a/src/decio.cxx b/src/decio.cxx
index 7990a28..1ad8929 100644
--- a/src/decio.cxx
+++ b/src/decio.cxx
@@ -136,7 +136,7 @@ CDecor::Write (Sint32 rank, bool bUser, Sint32 world, Sint32 time, Sint32 total)
 
   pBuffer->majRev    = 1;
   pBuffer->minRev    = 5;
-  pBuffer->celCoin   = m_celCoin;
+  pBuffer->celCoin   = m_celCorner;
   pBuffer->world     = world;
   pBuffer->time      = time;
   pBuffer->totalTime = total;
@@ -255,7 +255,7 @@ CDecor::Read (
       goto error;
   }
 
-  SetCoin (pBuffer->celCoin);
+  SetCorner (pBuffer->celCoin);
   if (bUser)
   {
     world = pBuffer->world;
@@ -511,7 +511,7 @@ CDecor::Flush ()
 
   m_celHome.x = 90;
   m_celHome.y = 98;
-  SetCoin (m_celHome);
+  SetCorner (m_celHome);
   InitAfterBuild ();
   LoadImages ();
 }
diff --git a/src/decmap.cxx b/src/decmap.cxx
index 253e144..66d4d5b 100644
--- a/src/decmap.cxx
+++ b/src/decmap.cxx
@@ -114,8 +114,8 @@ CDecor::ConvCelToMap (Point cel)
 {
   Point pos;
 
-  pos.x = (cel.x - m_celCoin.x) - (cel.y - m_celCoin.y);
-  pos.y = ((cel.x - m_celCoin.x) + (cel.y - m_celCoin.y)) / 2;
+  pos.x = (cel.x - m_celCorner.x) - (cel.y - m_celCorner.y);
+  pos.y = ((cel.x - m_celCorner.x) + (cel.y - m_celCorner.y)) / 2;
 
   pos.x += (DIMMAPX - MAPCADREX) / 2;
   pos.y += (DIMMAPY - MAPCADREY) / 2;
@@ -136,8 +136,8 @@ CDecor::ConvMapToCel (Point pos)
   cel.x = pos.y + pos.x / 2;
   cel.y = pos.y - pos.x / 2;
 
-  cel.x += m_celCoin.x;
-  cel.y += m_celCoin.y;
+  cel.x += m_celCorner.x;
+  cel.y += m_celCorner.y;
 
   return cel;
 }
@@ -158,7 +158,7 @@ CDecor::MapMove (Point pos)
     cel   = ConvMapToCel (pos);
     cel.x = cel.x - 10;
     cel.y = cel.y;
-    SetCoin (cel);
+    SetCorner (cel);
     NextPhase (0); // faudra refaire la carte tout de suite
     return true;
   }
@@ -560,7 +560,7 @@ CDecor::GenerateMap ()
   }
 
   // Dessine le cadre.
-  cel = m_celCoin;
+  cel = m_celCorner;
   pos = ConvCelToMap (cel);
 
   for (i = pos.x; i < pos.x + MAPCADREX; i++)
diff --git a/src/decor.cxx b/src/decor.cxx
index f6bf15c..b6f5a20 100644
--- a/src/decor.cxx
+++ b/src/decor.cxx
@@ -119,8 +119,8 @@ CDecor::CDecor ()
   m_pSound     = nullptr;
   m_pUndoDecor = nullptr;
 
-  m_celCoin.x = 90;
-  m_celCoin.y = 98;
+  m_celCorner.x = 90;
+  m_celCorner.y = 98;
 
   m_celHili.x     = -1;
   m_celOutline1.x = -1;
@@ -465,8 +465,8 @@ CDecor::ConvCelToPos (Point cel)
 {
   Point pos;
 
-  pos.x = ((cel.x - m_celCoin.x) - (cel.y - m_celCoin.y)) * (DIMCELX / 2);
-  pos.y = ((cel.x - m_celCoin.x) + (cel.y - m_celCoin.y)) * (DIMCELY / 2);
+  pos.x = ((cel.x - m_celCorner.x) - (cel.y - m_celCorner.y)) * (DIMCELX / 2);
+  pos.y = ((cel.x - m_celCorner.x) + (cel.y - m_celCorner.y)) * (DIMCELY / 2);
 
   pos.x += POSDRAWX + m_shiftOffset.x;
   pos.y += POSDRAWY + m_shiftOffset.y;
@@ -500,8 +500,8 @@ CDecor::ConvPosToCel (Point pos, bool bMap)
     cel.y -= (DIMCELX * DIMCELY);
   cel.y /= (DIMCELX * DIMCELY);
 
-  cel.x += m_celCoin.x;
-  cel.y += m_celCoin.y;
+  cel.x += m_celCorner.x;
+  cel.y += m_celCorner.y;
 
   return cel;
 }
@@ -516,19 +516,19 @@ CDecor::ConvPosToCel2 (Point pos)
   pos.x -= POSDRAWX + DIMCELX / 2;
   pos.y -= POSDRAWY;
 
-  if (m_celCoin.x % 2 != 0 && m_celCoin.y % 2 == 0)
+  if (m_celCorner.x % 2 != 0 && m_celCorner.y % 2 == 0)
   {
     pos.x += DIMCELX / 2;
     pos.y += DIMCELY / 2;
   }
 
-  if (m_celCoin.x % 2 == 0 && m_celCoin.y % 2 != 0)
+  if (m_celCorner.x % 2 == 0 && m_celCorner.y % 2 != 0)
   {
     pos.x -= DIMCELX / 2;
     pos.y += DIMCELY / 2;
   }
 
-  if (m_celCoin.x % 2 != 0 && m_celCoin.y % 2 != 0)
+  if (m_celCorner.x % 2 != 0 && m_celCorner.y % 2 != 0)
     pos.y += DIMCELY;
 
   cel.x =
@@ -539,8 +539,8 @@ CDecor::ConvPosToCel2 (Point pos)
     cel.y -= (DIMCELX * 2 * DIMCELY * 2);
   cel.y /= (DIMCELX * 2 * DIMCELY * 2);
 
-  cel.x = (cel.x * 2 + m_celCoin.x) / 2 * 2;
-  cel.y = (cel.y * 2 + m_celCoin.y) / 2 * 2;
+  cel.x = (cel.x * 2 + m_celCorner.x) / 2 * 2;
+  cel.y = (cel.y * 2 + m_celCorner.y) / 2 * 2;
 
   return cel;
 }
@@ -3261,7 +3261,7 @@ CDecor::HideTooltips (bool bHide)
 // Modifie l'origine supérieure/gauche du décor.
 
 void
-CDecor::SetCoin (Point coin, bool bCenter)
+CDecor::SetCorner (Point coin, bool bCenter)
 {
   if (bCenter)
   {
@@ -3278,16 +3278,16 @@ CDecor::SetCoin (Point coin, bool bCenter)
   if (coin.y > MAXCELY - 4)
     coin.y = MAXCELY - 4;
 
-  m_celCoin       = coin;
+  m_celCorner       = coin;
   m_bGroundRedraw = true; // faudra redessiner les sols
   m_celHili.x     = -1;
   m_textLastPos.x = -1; // tooltips plus lavable !
 }
 
 Point
-CDecor::GetCoin ()
+CDecor::GetCorner ()
 {
-  return m_celCoin;
+  return m_celCorner;
 }
 
 Point
@@ -3312,7 +3312,7 @@ CDecor::MemoPos (Sint32 rank, bool bRecord)
   if (bRecord)
   {
     m_pSound->PlayImage (SOUND_CLOSE, pos);
-    m_memoPos[rank] = m_celCoin;
+    m_memoPos[rank] = m_celCorner;
   }
   else
   {
@@ -3321,7 +3321,7 @@ CDecor::MemoPos (Sint32 rank, bool bRecord)
     else
     {
       m_pSound->PlayImage (SOUND_GOAL, pos);
-      SetCoin (m_memoPos[rank], false);
+      SetCorner (m_memoPos[rank], false);
     }
   }
 }
diff --git a/src/decor.h b/src/decor.h
index e0fc5b5..cb67462 100644
--- a/src/decor.h
+++ b/src/decor.h
@@ -406,8 +406,8 @@ public:
   bool GetObject (Point cel, Sint32 & channel, Sint32 & icon);
   bool SetFire (Point cel, bool bFire);
 
-  void  SetCoin (Point coin, bool bCenter = false);
-  Point GetCoin ();
+  void  SetCorner (Point coin, bool bCenter = false);
+  Point GetCorner ();
   Point GetHome ();
   void  MemoPos (Sint32 rank, bool bRecord);
 
@@ -467,7 +467,7 @@ protected:
   Sint16    m_rankBlupi[MAXCELX][MAXCELY];
   Blupi     m_blupi[MAXBLUPI];
   Move      m_move[MAXMOVE];
-  Point     m_celCoin; // cellule sup/gauche
+  Point     m_celCorner; // cellule sup/gauche
   Point     m_celHome; // pour touche Home
   Point     m_celHili;
   Point     m_celOutline1;
diff --git a/src/decstat.cxx b/src/decstat.cxx
index 86298bf..639e362 100644
--- a/src/decstat.cxx
+++ b/src/decstat.cxx
@@ -974,7 +974,7 @@ CDecor::StatisticDown (Point pos)
   return false;
 
 select:
-  SetCoin (cel, true);
+  SetCorner (cel, true);
   NextPhase (0); // faudra refaire la carte tout de suite
   return true;
 }
diff --git a/src/event.cxx b/src/event.cxx
index 0443a44..a832d2e 100644
--- a/src/event.cxx
+++ b/src/event.cxx
@@ -3463,17 +3463,17 @@ CEvent::MovieToStart ()
 void
 CEvent::DecorShift (Sint32 dx, Sint32 dy)
 {
-  Point coin;
+  Point corner;
 
   if (m_phase != EV_PHASE_PLAY && m_phase != EV_PHASE_BUILD)
     return;
 
-  coin = m_pDecor->GetCoin ();
+  corner = m_pDecor->GetCorner ();
 
-  coin.x += dx;
-  coin.y += dy;
+  corner.x += dx;
+  corner.y += dy;
 
-  m_pDecor->SetCoin (coin);
+  m_pDecor->SetCorner (corner);
 }
 
 /**
@@ -3649,7 +3649,7 @@ CEvent::PlayDown (Point pos, const SDL_Event & event)
 
   if (bMap)
   {
-    m_pDecor->SetCoin (cel, true);
+    m_pDecor->SetCorner (cel, true);
     m_pDecor->NextPhase (0); // faudra refaire la carte tout de suite
     return true;
   }
@@ -5368,7 +5368,7 @@ CEvent::TreatEventBase (const SDL_Event & event)
     }
     case SDLK_HOME:
       pos = m_pDecor->GetHome ();
-      m_pDecor->SetCoin (pos);
+      m_pDecor->SetCorner (pos);
       return true;
     case SDLK_SPACE:
       if (m_bRunMovie)