From: Holger Schemel <info@artsoft.org>
Date: Wed, 3 Mar 2021 18:46:19 +0000 (+0100)
Subject: fixed graphics config option to support elements on non-black background
X-Git-Tag: 4.3.0.0~221
X-Git-Url: https://git.artsoft.org/?a=commitdiff_plain;h=62356d7587434a3822d39f74d8b4c86a9febd123;p=rocksndiamonds.git

fixed graphics config option to support elements on non-black background

This change fixes graphical bugs for moving and falling elements when
using non-black background by using option "game.use_masked_elements".

This is a fix for commit bbf7eaa0.
---

diff --git a/src/tools.c b/src/tools.c
index b0df3440..325f7e1c 100644
--- a/src/tools.c
+++ b/src/tools.c
@@ -2535,6 +2535,16 @@ void DrawScreenField(int x, int y)
     else
       DrawScreenElement(x, y, EL_EMPTY);
 
+    if (cut_mode != CUT_BELOW && game.use_masked_elements)
+    {
+      int dir = MovDir[lx][ly];
+      int newx = x + (dir == MV_LEFT ? -1 : dir == MV_RIGHT ? +1 : 0);
+      int newy = y + (dir == MV_UP   ? -1 : dir == MV_DOWN  ? +1 : 0);
+
+      if (IN_SCR_FIELD(newx, newy))
+	DrawScreenElement(newx, newy, EL_EMPTY);
+    }
+
     if (horiz_move)
       DrawScreenElementShifted(x, y, MovPos[lx][ly], 0, element, NO_CUTTING);
     else if (cut_mode == NO_CUTTING)