From 7991a249fc798c3b7330def99bf61a33717a4ea1 Mon Sep 17 00:00:00 2001
From: Holger Schemel <info@artsoft.org>
Date: Sat, 9 Apr 2022 20:04:36 +0200
Subject: [PATCH] added "levelinfo.conf" options to rename levels with title
 "nameless level"

---
 src/files.c          |  7 +++++++
 src/libgame/setup.c  | 21 +++++++++++++++++----
 src/libgame/system.h |  3 +++
 3 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/src/files.c b/src/files.c
index 3564470c..3278b0c6 100644
--- a/src/files.c
+++ b/src/files.c
@@ -6566,6 +6566,13 @@ static void LoadLevel_InitSettings(struct LevelInfo *level)
 {
   // adjust level settings for (non-native) Sokoban-style levels
   LoadLevel_InitSettings_SB(level);
+
+  // rename levels with title "nameless level" or if renaming is forced
+  if (leveldir_current->empty_level_name != NULL &&
+      (strEqual(level->name, NAMELESS_LEVEL_NAME) ||
+       leveldir_current->force_level_name))
+    snprintf(level->name, MAX_LEVEL_NAME_LEN + 1,
+	     leveldir_current->empty_level_name, level_nr);
 }
 
 static void LoadLevel_InitStandardElements(struct LevelInfo *level)
diff --git a/src/libgame/setup.c b/src/libgame/setup.c
index 60bb5685..3557e949 100644
--- a/src/libgame/setup.c
+++ b/src/libgame/setup.c
@@ -2636,11 +2636,13 @@ SetupFileHash *loadSetupFileHash(char *filename)
 #define LEVELINFO_TOKEN_FILENAME		24
 #define LEVELINFO_TOKEN_FILETYPE		25
 #define LEVELINFO_TOKEN_SPECIAL_FLAGS		26
-#define LEVELINFO_TOKEN_HANDICAP		27
-#define LEVELINFO_TOKEN_SKIP_LEVELS		28
-#define LEVELINFO_TOKEN_USE_EMC_TILES		29
+#define LEVELINFO_TOKEN_EMPTY_LEVEL_NAME	27
+#define LEVELINFO_TOKEN_FORCE_LEVEL_NAME	28
+#define LEVELINFO_TOKEN_HANDICAP		29
+#define LEVELINFO_TOKEN_SKIP_LEVELS		30
+#define LEVELINFO_TOKEN_USE_EMC_TILES		31
 
-#define NUM_LEVELINFO_TOKENS			30
+#define NUM_LEVELINFO_TOKENS			32
 
 static LevelDirTree ldi;
 
@@ -2674,6 +2676,8 @@ static struct TokenInfo levelinfo_tokens[] =
   { TYPE_STRING,	&ldi.level_filename,	"filename"		},
   { TYPE_STRING,	&ldi.level_filetype,	"filetype"		},
   { TYPE_STRING,	&ldi.special_flags,	"special_flags"		},
+  { TYPE_STRING,	&ldi.empty_level_name,	"empty_level_name"	},
+  { TYPE_BOOLEAN,	&ldi.force_level_name,	"force_level_name"	},
   { TYPE_BOOLEAN,	&ldi.handicap,		"handicap"		},
   { TYPE_BOOLEAN,	&ldi.skip_levels,	"skip_levels"		},
   { TYPE_BOOLEAN,	&ldi.use_emc_tiles,	"use_emc_tiles"		}
@@ -2771,6 +2775,9 @@ static void setTreeInfoToDefaults(TreeInfo *ti, int type)
 
     ti->special_flags = NULL;
 
+    ti->empty_level_name = NULL;
+    ti->force_level_name = FALSE;
+
     ti->levels = 0;
     ti->first_level = 0;
     ti->last_level = 0;
@@ -2853,6 +2860,9 @@ static void setTreeInfoToDefaultsFromParent(TreeInfo *ti, TreeInfo *parent)
 
     ti->special_flags = getStringCopy(parent->special_flags);
 
+    ti->empty_level_name = getStringCopy(parent->empty_level_name);
+    ti->force_level_name = parent->force_level_name;
+
     ti->levels = parent->levels;
     ti->first_level = parent->first_level;
     ti->last_level = parent->last_level;
@@ -2915,6 +2925,9 @@ static TreeInfo *getTreeInfoCopy(TreeInfo *ti)
 
   ti_copy->special_flags	= getStringCopy(ti->special_flags);
 
+  ti_copy->empty_level_name	= getStringCopy(ti->empty_level_name);
+  ti_copy->force_level_name	= ti->force_level_name;
+
   ti_copy->levels		= ti->levels;
   ti_copy->first_level		= ti->first_level;
   ti_copy->last_level		= ti->last_level;
diff --git a/src/libgame/system.h b/src/libgame/system.h
index cf2bf163..15391399 100644
--- a/src/libgame/system.h
+++ b/src/libgame/system.h
@@ -1623,6 +1623,9 @@ struct TreeInfo
 
   char *special_flags;	// flags for special actions performed on level file
 
+  char *empty_level_name;   // name pattern if level title is "nameless level"
+  boolean force_level_name; // force also renaming non-nameless level titles
+
   int levels;		// number of levels in level series
   int first_level;	// first level number (to allow start with 0 or 1)
   int last_level;	// last level number (automatically calculated)
-- 
2.34.1