X-Git-Url: https://git.artsoft.org/?p=rocksndiamonds.git;a=blobdiff_plain;f=src%2Flibgame%2Fsystem.c;h=eec5d192960ac9e784d5232ad8e47ef5ccb90dc1;hp=25edb0effd65a959df172d43fa84f9c03d77ddcb;hb=f7165d318c089b77d0a91a77afc44cb8866dc1cc;hpb=f1dd811c3716f706ab832dadf8ef52cf4bfd705d

diff --git a/src/libgame/system.c b/src/libgame/system.c
index 25edb0ef..eec5d192 100644
--- a/src/libgame/system.c
+++ b/src/libgame/system.c
@@ -170,6 +170,8 @@ void InitGfxFieldInfo(int sx, int sy, int sxsize, int sysize,
 
   gfx.field_save_buffer = field_save_buffer;
 
+  gfx.drawing_area_changed = FALSE;
+
   SetDrawDeactivationMask(REDRAW_NONE);		/* do not deactivate drawing */
   SetDrawBackgroundMask(REDRAW_NONE);		/* deactivate masked drawing */
 }
@@ -463,6 +465,16 @@ boolean DrawingOnBackground(int x, int y)
 	  CheckDrawingArea(x, y, 1, 1, gfx.draw_background_mask));
 }
 
+boolean DrawingAreaChanged()
+{
+  int drawing_area_changed = gfx.drawing_area_changed;
+
+  // reset flag for change of drawing area after querying it
+  gfx.drawing_area_changed = FALSE;
+
+  return drawing_area_changed;
+}
+
 static boolean InClippedRectangle(Bitmap *bitmap, int *x, int *y,
 				  int *width, int *height, boolean is_dest)
 {