added comments

diff --git a/src/game_bd/bd_cave.h b/src/game_bd/bd_cave.h
index 3c3bc74dc6bc4896602b5872dbc22d4df14492ba..2bd4b0d3ef0ab62c0df23c0e422d868b688f54a6 100644 (file)
--- a/src/game_bd/bd_cave.h
+++ b/src/game_bd/bd_cave.h
@@ -313,14 +313,15 @@ typedef struct _gd_cave_replay
 
 typedef enum _gd_scheduling
 {
-  GD_SCHEDULING_MILLISECONDS,
-  GD_SCHEDULING_BD1,
-  GD_SCHEDULING_BD2,
-  GD_SCHEDULING_PLCK,
-  GD_SCHEDULING_CRDR,
-  GD_SCHEDULING_BD1_ATARI,
-  GD_SCHEDULING_BD2_PLCK_ATARI,
-  GD_SCHEDULING_MAX
+  GD_SCHEDULING_MILLISECONDS,  // Perfect scheduling, milliseconds-based
+  GD_SCHEDULING_BD1,           // C64 BD1
+  GD_SCHEDULING_BD2,           // C64 BD2
+  GD_SCHEDULING_PLCK,          // C64 construction kit
+  GD_SCHEDULING_CRDR,          // C64 crazy dream
+  GD_SCHEDULING_BD1_ATARI,     // Atari BD1
+  GD_SCHEDULING_BD2_PLCK_ATARI,        // Atari BD2 and construction kit
+
+  GD_SCHEDULING_MAX            // Number of scheduling types
 } GdScheduling;
 
 typedef struct _gd_c64_random_generator