added setup option to select default game engine type

[rocksndiamonds.git] / src / game_bd / bd_caveengine.c

diff --git a/src/game_bd/bd_caveengine.c b/src/game_bd/bd_caveengine.c
index 46c97e57551043390c027b787f9cacadbfeff6a6..e221ca7784551455c8e7e5d376129f8c31dac05b 100644 (file)
--- a/src/game_bd/bd_caveengine.c
+++ b/src/game_bd/bd_caveengine.c
@@ -1371,6 +1371,9 @@ static boolean do_fall_try_magic(GdCave *cave, int x, int y,
     // active or non-active or anything, element falling in will always disappear
     store(cave, x, y, O_SPACE);
 
+    if (cave->magic_wall_breakscan && cave->amoeba_state == GD_AM_AWAKE)
+      cave->convert_amoeba_this_frame = TRUE;
+
     return TRUE;
   }
   else
@@ -1604,6 +1607,9 @@ void gd_cave_iterate(GdCave *cave, GdDirection player_move, boolean player_fire,
   // score collected this frame
   cave->score = 0;
 
+  // to implement buggy bd1 amoeba+magic wall behaviour
+  cave->convert_amoeba_this_frame = FALSE;
+
   // suicide only kills the active player
   // player_x, player_y was set by the previous iterate routine, or the cave setup.
   // we must check if there is a player or not - he may have exploded or something like that
@@ -2847,6 +2853,13 @@ void gd_cave_iterate(GdCave *cave, GdDirection player_move, boolean player_fire,
          // ============================================================================
 
        case O_AMOEBA:
+         // emulating BD1 amoeba+magic wall bug
+         if (cave->convert_amoeba_this_frame && amoeba_found_enclosed)
+         {
+           store(cave, x, y, cave->amoeba_enclosed_effect);
+           break;
+         }
+
          amoeba_count++;
          switch (cave->amoeba_state)
          {