From: Holger Schemel <holger.schemel@virtion.de>
Date: Sun, 15 Sep 2024 22:33:32 +0000 (+0200)
Subject: changed BD engine to match new GDash code (expanding walls)
X-Git-Tag: 4.4.0.0-test-4~232
X-Git-Url: https://git.artsoft.org/?a=commitdiff_plain;h=6c259038039d4a51120c10d2bdd2e0151c848e4c;p=rocksndiamonds.git

changed BD engine to match new GDash code (expanding walls)
---

diff --git a/src/game_bd/bd_caveengine.c b/src/game_bd/bd_caveengine.c
index 53acb862..f2753a1c 100644
--- a/src/game_bd/bd_caveengine.c
+++ b/src/game_bd/bd_caveengine.c
@@ -3420,25 +3420,40 @@ void gd_cave_iterate(GdCave *cave, GdDirection player_move, boolean player_fire,
 		get(cave, x, y) == O_V_EXPANDING_STEEL_WALL) &&
 	       cave->expanding_wall_changed))
 	  {
-	    if (is_like_space(cave, x, y, GD_MV_LEFT))
+            // special case: check both directions when using old engine
+            boolean check_both_directions = TRUE;
+
+	    if (check_both_directions && is_like_space(cave, x, y, GD_MV_LEFT))
 	    {
 	      store_dir(cave, x, y, GD_MV_LEFT, get(cave, x, y));
 	      play_sound_of_element(cave, get(cave, x, y), x, y);
+
+              // if using new engine, skip checking other direction (like "if ... else if ...")
+              check_both_directions = game_bd.game->use_old_engine;
 	    }
 
-	    if (is_like_space(cave, x, y, GD_MV_RIGHT)) {
+	    if (check_both_directions && is_like_space(cave, x, y, GD_MV_RIGHT))
+            {
 	      store_dir(cave, x, y, GD_MV_RIGHT, get(cave, x, y));
 	      play_sound_of_element(cave, get(cave, x, y), x, y);
 	    }
 	  }
 	  else
 	  {
-	    if (is_like_space(cave, x, y, GD_MV_UP)) {
+            // special case: check both directions when using old engine
+            boolean check_both_directions = TRUE;
+
+	    if (check_both_directions && is_like_space(cave, x, y, GD_MV_UP))
+            {
 	      store_dir(cave, x, y, GD_MV_UP, get(cave, x, y));
 	      play_sound_of_element(cave, get(cave, x, y), x, y);
+
+              // if using new engine, skip checking other direction (like "if ... else if ...")
+              check_both_directions = game_bd.game->use_old_engine;
 	    }
 
-	    if (is_like_space(cave, x, y, GD_MV_DOWN)) {
+	    if (check_both_directions && is_like_space(cave, x, y, GD_MV_DOWN))
+            {
 	      store_dir(cave, x, y, GD_MV_DOWN, get(cave, x, y));
 	      play_sound_of_element(cave, get(cave, x, y), x, y);
 	    }