From: Holger Schemel <info@artsoft.org>
Date: Fri, 26 Nov 2021 23:03:17 +0000 (+0100)
Subject: added basic support for additional empty space elements in game engine
X-Git-Tag: 4.3.1.0~10
X-Git-Url: https://git.artsoft.org/?a=commitdiff_plain;h=1e23125074b86c5eb1254037a81a3e9062152b7f;p=rocksndiamonds.git

added basic support for additional empty space elements in game engine
---

diff --git a/src/game.c b/src/game.c
index d4c04025..8ac26161 100644
--- a/src/game.c
+++ b/src/game.c
@@ -2028,6 +2028,11 @@ static void InitField(int x, int y, boolean init_game)
 
 	InitField(x, y, init_game);
       }
+      else if (IS_EMPTY_ELEMENT(element))
+      {
+	GfxElementEmpty[x][y] = element;
+	Tile[x][y] = EL_EMPTY;
+      }
 
       break;
   }
@@ -3880,6 +3885,7 @@ void InitGame(void)
     GfxRandom[x][y] = INIT_GFX_RANDOM();
     GfxRandomStatic[x][y] = INIT_GFX_RANDOM();
     GfxElement[x][y] = EL_UNDEFINED;
+    GfxElementEmpty[x][y] = EL_EMPTY;
     GfxAction[x][y] = ACTION_DEFAULT;
     GfxDir[x][y] = MV_NONE;
     GfxRedraw[x][y] = GFX_REDRAW_NONE;
@@ -14199,7 +14205,6 @@ static int DigField(struct PlayerInfo *player,
       return MP_NO_ACTION;
     }
   }
-
   if (IS_TUBE(Back[jx][jy]) && game.engine_version >= VERSION_IDENT(2,2,0,0))
     old_element = Back[jx][jy];
 
diff --git a/src/main.c b/src/main.c
index 4ef296f2..47bd787f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -69,6 +69,7 @@ int			GfxFrame[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 int 			GfxRandom[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 int 			GfxRandomStatic[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 int 			GfxElement[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
+int 			GfxElementEmpty[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 int			GfxAction[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 int 			GfxDir[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 int 			GfxRedraw[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
diff --git a/src/main.h b/src/main.h
index 72c16441..5ff5558a 100644
--- a/src/main.h
+++ b/src/main.h
@@ -3760,6 +3760,7 @@ extern int			GfxFrame[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern int			GfxRandom[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern int			GfxRandomStatic[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern int 			GfxElement[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
+extern int 			GfxElementEmpty[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern int			GfxAction[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern int 			GfxDir[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern int 			GfxRedraw[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
diff --git a/src/tools.c b/src/tools.c
index bf79b048..a3e53068 100644
--- a/src/tools.c
+++ b/src/tools.c
@@ -1996,6 +1996,9 @@ void DrawScreenElementExt(int x, int y, int dx, int dy, int element,
   int graphic;
   int frame;
 
+  if (element == EL_EMPTY)
+    element = GfxElementEmpty[lx][ly];
+
   if (IN_LEV_FIELD(lx, ly))
   {
     SetRandomAnimationValue(lx, ly);