From 8b514628ff5c33f7d1bc14da0eceb770b4b64ba2 Mon Sep 17 00:00:00 2001
From: Holger Schemel <info@artsoft.org>
Date: Sun, 22 Jan 2023 11:40:28 +0100
Subject: [PATCH] fixed playing older tapes for MM engine

---
 src/game_mm/export.h   | 2 ++
 src/game_mm/mm_game.c  | 6 ++++++
 src/game_mm/mm_tools.c | 5 +++++
 3 files changed, 13 insertions(+)

diff --git a/src/game_mm/export.h b/src/game_mm/export.h
index b628a8d0..2af2b0ea 100644
--- a/src/game_mm/export.h
+++ b/src/game_mm/export.h
@@ -143,6 +143,8 @@ struct GameInfo_MM
   int ball_choice_pos;		// current content element choice position
   boolean laser_red, laser_green, laser_blue;
 
+  boolean lightball_rnd;
+
   boolean level_solved;
   boolean game_over;
   int game_over_cause;
diff --git a/src/game_mm/mm_game.c b/src/game_mm/mm_game.c
index 326880f1..8583a9a7 100644
--- a/src/game_mm/mm_game.c
+++ b/src/game_mm/mm_game.c
@@ -644,6 +644,8 @@ void InitGameEngine_MM(void)
   game_mm.laser_green = FALSE;
   game_mm.laser_blue = TRUE;
 
+  game_mm.lightball_rnd = TRUE;
+
   game_mm.level_solved = FALSE;
   game_mm.game_over = FALSE;
   game_mm.game_over_cause = 0;
@@ -714,6 +716,8 @@ void InitGameActions_MM(void)
 
   InitLaser();
 
+  game_mm.lightball_rnd = FALSE;
+
   for (i = 0; i <= num_init_game_frames; i++)
   {
     if (i == num_init_game_frames)
@@ -749,6 +753,8 @@ void InitGameActions_MM(void)
 #endif
   }
 
+  game_mm.lightball_rnd = TRUE;
+
   ScanLaser();
 
   if (game_mm.kettles_still_needed == 0)
diff --git a/src/game_mm/mm_tools.c b/src/game_mm/mm_tools.c
index d8dbe8be..44fb257c 100644
--- a/src/game_mm/mm_tools.c
+++ b/src/game_mm/mm_tools.c
@@ -398,6 +398,11 @@ void DrawField_MM(int x, int y)
   int element = Tile[x][y];
 
   DrawElement_MM(x, y, element);
+
+  // old game versions randomly changed colors of bonus light balls
+  if (game.engine_version < VERSION_IDENT(4,3,3,0) &&
+      element == EL_LIGHTBALL && game_mm.lightball_rnd)
+    RND(3);
 }
 
 void DrawLevel_MM(void)
-- 
2.34.1