changed setting random colors for BD style levels for new levels only

Without this change, levels loaded from existing level files may get
wrong colors, as default colors (that are not stored in level file)
have been replaced with random colors before, which is wrong.

diff --git a/src/files.c b/src/files.c
index f620f596a1b7fc97e654c7d01cfd5b5c4aadb924..c103b940eb8a3efac13764732066393536370559 100644 (file)
--- a/src/files.c
+++ b/src/files.c
@@ -2373,7 +2373,7 @@ void setElementChangeInfoToDefaults(struct ElementChangeInfo *change)
   change->post_change_function = NULL;
 }
 
-static void setLevelInfoToDefaults_Level(struct LevelInfo *level)
+static void setLevelInfoToDefaults_Level(struct LevelInfo *level, boolean prepare_loading_level)
 {
   boolean add_border = FALSE;
   int x1 = 0;
@@ -2454,12 +2454,17 @@ static void setLevelInfoToDefaults_Level(struct LevelInfo *level)
   // detect custom elements when loading them
   level->file_has_custom_elements = FALSE;
 
-  // set random colors for BD style levels according to preferred color type
-  SetRandomLevelColors_BD(setup.bd_default_color_type);
+  // set random colors for new levels only, but never when loading existing level
+  // (as default colors are not stored in level file, which would result in wrong colors)
+  if (!prepare_loading_level)
+  {
+    // set random colors for BD style levels according to preferred color type
+    SetRandomLevelColors_BD(setup.bd_default_color_type);
 
-  // set default color type and colors for BD style level colors
-  SetDefaultLevelColorType_BD();
-  SetDefaultLevelColors_BD();
+    // set default color type and colors for BD style level colors
+    SetDefaultLevelColorType_BD();
+    SetDefaultLevelColors_BD();
+  }
 
   // set all bug compatibility flags to "false" => do not emulate this bug
   level->use_action_after_change_bug = FALSE;
@@ -2615,7 +2620,7 @@ static void setLevelInfoToDefaults(struct LevelInfo *level,
                                   boolean level_info_only,
                                   boolean prepare_loading_level)
 {
-  setLevelInfoToDefaults_Level(level);
+  setLevelInfoToDefaults_Level(level, prepare_loading_level);
 
   if (!level_info_only)
     setLevelInfoToDefaults_Elements(level);