From: Holger Schemel <info@artsoft.org>
Date: Thu, 15 Mar 2018 22:08:55 +0000 (+0100)
Subject: fixed two bugs with broken sniksnak graphics in SP engine after warp mode
X-Git-Tag: 4.0.1.4~2
X-Git-Url: https://git.artsoft.org/?a=commitdiff_plain;h=7f40f3e4e3ae0818a91083952fd1710841735152;p=rocksndiamonds.git

fixed two bugs with broken sniksnak graphics in SP engine after warp mode

- the more serious of the two bugs was introduced with commit 727d3b5f
  * lots of non-existing sniksnaks may have been displayed after warp mode
- the second bug existed for a long time (maybe this was never done right)
  * some sniksnaks may have been displayed incompletely after warp mode
- this bug was fixed by forcing a complete playfield redraw after warp mode
---

diff --git a/src/game_sp/DDScrollBuffer.c b/src/game_sp/DDScrollBuffer.c
index 0992e0be..f580d399 100644
--- a/src/game_sp/DDScrollBuffer.c
+++ b/src/game_sp/DDScrollBuffer.c
@@ -168,6 +168,17 @@ void UpdatePlayfield(boolean force_redraw)
   int num_redrawn = 0;
 #endif
 
+  if (force_redraw)
+  {
+    // force re-initialization of graphics status variables
+    for (y = DisplayMinY; y <= DisplayMaxY; y++)
+      for (x = DisplayMinX; x <= DisplayMaxX; x++)
+	GfxGraphic[x][y] = -1;
+
+    // force complete playfield redraw
+    DisplayLevel();
+  }
+
   for (y = DisplayMinY; y <= DisplayMaxY; y++)
   {
     for (x = DisplayMinX; x <= DisplayMaxX; x++)