rnd-20030924-B-src
[rocksndiamonds.git] / src / main.h
index 68ad89ca303d0a240c3c656f0e3d25204e26c355..9739a87cbb032590ee8ded85d20107f2b36c7a12 100644 (file)
 #define CE_OTHER_GETS_PUSHED   13
 #define CE_OTHER_GETS_COLLECTED        14
 #define CE_OTHER_GETS_DROPPED  15
+#define CE_BY_PLAYER           16      /* obsolete; now CE_BY_DIRECT_ACTION */
+#define CE_BY_COLLISION                17      /* obsolete; now CE_BY_DIRECT_ACTION */
+#define CE_BY_OTHER_ACTION     18      /* activates other element events */
+#define CE_BY_DIRECT_ACTION    19      /* activates direct element events */
+#define CE_OTHER_GETS_DIGGED   20
+#define CE_ENTERED_BY_PLAYER   21
+#define CE_LEFT_BY_PLAYER      22
+#define CE_OTHER_GETS_ENTERED  23
+#define CE_OTHER_GETS_LEFT     24
 
-/* values for activating change events (also stored in level file!) */
-#define CE_BY_PLAYER           16
-#define CE_BY_COLLISION                17
-#define CE_BY_OTHER            18
+/* values for derived change events (determined from properties above) */
+#define CE_TOUCHING_SOME_SIDE  25      /* summarized left/right/up/down/any */
 
-#define NUM_CHANGE_EVENTS      19
+#define NUM_CHANGE_EVENTS      26
 
 #define CE_BITMASK_DEFAULT     0
 
                                  (CH_EVENT_VAR(e) |=  CH_EVENT_BIT(c)) : \
                                  (CH_EVENT_VAR(e) &= ~CH_EVENT_BIT(c))) : 0)
 
+/* values for change sides for custom elements */
+#define CH_SIDE_LEFT           MV_LEFT
+#define CH_SIDE_RIGHT          MV_RIGHT
+#define CH_SIDE_TOP            MV_UP
+#define CH_SIDE_BOTTOM         MV_DOWN
+#define CH_SIDE_LEFT_RIGHT     MV_HORIZONTAL
+#define CH_SIDE_TOP_BOTTOM     MV_VERTICAL
+#define CH_SIDE_ANY            MV_ANY_DIRECTION
+
 /* values for change power for custom elements */
 #define CP_NON_DESTRUCTIVE     0
 #define CP_HALF_DESTRUCTIVE    1
 #define IS_CUSTOM_ELEMENT(e)   ((e) >= EL_CUSTOM_START &&              \
                                 (e) <= EL_CUSTOM_END)
 
+#define IS_ENVELOPE(e)         ((e) >= EL_ENVELOPE_1 &&                \
+                                (e) <= EL_ENVELOPE_4)
+
 #define GFX_ELEMENT(e)         (element_info[e].use_gfx_element ?      \
                                 element_info[e].gfx_element : e)
 
 #define MAX_ENVELOPE_YSIZE     20
 #define MAX_ENVELOPE_TEXT_LEN  (MAX_ENVELOPE_XSIZE * MAX_ENVELOPE_YSIZE)
 #define MIN_CHANGE_PAGES       1
-#define MAX_CHANGE_PAGES       10
+#define MAX_CHANGE_PAGES       16
 
 /* values for elements with content */
 #define MIN_ELEMENT_CONTENTS   1
 #define EL_WALL                                2
 #define EL_WALL_SLIPPERY               3
 #define EL_ROCK                                4
-#define EL_KEY_OBSOLETE                        5 /* obsolete; mapped to EL_KEY_1 */
+#define EL_KEY_OBSOLETE                        5       /* obsolete; now EL_KEY_1 */
 #define EL_EMERALD                     6
 #define EL_EXIT_CLOSED                 7
-#define EL_PLAYER_OBSOLETE             8 /* obsolete; mapped to EL_PLAYER_1 */
+#define EL_PLAYER_OBSOLETE             8       /* obsolete; now EL_PLAYER_1 */
 #define EL_BUG                         9
 #define EL_SPACESHIP                   10
 #define EL_YAMYAM                      11
 #define EL_PIG                         117
 #define EL_DRAGON                      118
 
-#define EL_EM_KEY_1_FILE               119
+#define EL_EM_KEY_1_FILE_OBSOLETE      119     /* obsolete; now EL_EM_KEY_1 */
 
 #define EL_CHAR_START                  120
 #define EL_CHAR_ASCII0                 (EL_CHAR_START  - 32)
 #define EL_EM_GATE_3                   205
 #define EL_EM_GATE_4                   206
 
-#define EL_EM_KEY_2_FILE                       207
-#define EL_EM_KEY_3_FILE                       208
-#define EL_EM_KEY_4_FILE                       209
+#define EL_EM_KEY_2_FILE_OBSOLETE      207     /* obsolete; now EL_EM_KEY_2 */
+#define EL_EM_KEY_3_FILE_OBSOLETE      208     /* obsolete; now EL_EM_KEY_3 */
+#define EL_EM_KEY_4_FILE_OBSOLETE      209     /* obsolete; now EL_EM_KEY_4 */
 
 #define EL_SP_START                    210
 #define EL_SP_EMPTY_SPACE              (EL_SP_START + 0)
 #define EL_CONVEYOR_BELT_4_SWITCH_MIDDLE 293
 #define EL_CONVEYOR_BELT_4_SWITCH_RIGHT         294
 #define EL_LANDMINE                    295
-#define EL_ENVELOPE                    296
+#define EL_ENVELOPE_OBSOLETE           296   /* obsolete; now EL_ENVELOPE_1 */
 #define EL_LIGHT_SWITCH                        297
 #define EL_LIGHT_SWITCH_ACTIVE         298
 #define EL_SIGN_EXCLAMATION            299
 #define EL_UNUSED_358                  358
 #define EL_UNUSED_359                  359
 
+/* ---------- begin of custom elements section ----------------------------- */
 #define EL_CUSTOM_START                        360
 
 #include "conf_cus.h"  /* include auto-generated data structure definitions */
 
 #define NUM_CUSTOM_ELEMENTS            256
+#define EL_CUSTOM_END                  615
+/* ---------- end of custom elements section ------------------------------- */
 
-#define EL_CUSTOM_END          (EL_CUSTOM_START + NUM_CUSTOM_ELEMENTS - 1)
-#define NUM_FILE_ELEMENTS      (EL_CUSTOM_START + NUM_CUSTOM_ELEMENTS)
+#define EL_EM_KEY_1                    616
+#define EL_EM_KEY_2                    617
+#define EL_EM_KEY_3                    618
+#define EL_EM_KEY_4                    619
+#define EL_ENVELOPE_1                  620
+#define EL_ENVELOPE_2                  621
+#define EL_ENVELOPE_3                  622
+#define EL_ENVELOPE_4                  623
+
+#define NUM_FILE_ELEMENTS              624
 
 
 /* "real" (and therefore drawable) runtime elements */
 #define EL_FIRST_RUNTIME_REAL          NUM_FILE_ELEMENTS
 
-#define EL_EM_KEY_1                    (EL_FIRST_RUNTIME_REAL + 0)
-#define EL_EM_KEY_2                    (EL_FIRST_RUNTIME_REAL + 1)
-#define EL_EM_KEY_3                    (EL_FIRST_RUNTIME_REAL + 2)
-#define EL_EM_KEY_4                    (EL_FIRST_RUNTIME_REAL + 3)
-#define EL_DYNABOMB_PLAYER_1_ACTIVE    (EL_FIRST_RUNTIME_REAL + 4)
-#define EL_DYNABOMB_PLAYER_2_ACTIVE    (EL_FIRST_RUNTIME_REAL + 5)
-#define EL_DYNABOMB_PLAYER_3_ACTIVE    (EL_FIRST_RUNTIME_REAL + 6)
-#define EL_DYNABOMB_PLAYER_4_ACTIVE    (EL_FIRST_RUNTIME_REAL + 7)
-#define EL_SP_DISK_RED_ACTIVE          (EL_FIRST_RUNTIME_REAL + 8)
-#define EL_SWITCHGATE_OPENING          (EL_FIRST_RUNTIME_REAL + 9)
-#define EL_SWITCHGATE_CLOSING          (EL_FIRST_RUNTIME_REAL + 10)
-#define EL_TIMEGATE_OPENING            (EL_FIRST_RUNTIME_REAL + 11)
-#define EL_TIMEGATE_CLOSING            (EL_FIRST_RUNTIME_REAL + 12)
-#define EL_PEARL_BREAKING              (EL_FIRST_RUNTIME_REAL + 13)
-#define EL_TRAP_ACTIVE                 (EL_FIRST_RUNTIME_REAL + 14)
-#define EL_INVISIBLE_STEELWALL_ACTIVE  (EL_FIRST_RUNTIME_REAL + 15)
-#define EL_INVISIBLE_WALL_ACTIVE       (EL_FIRST_RUNTIME_REAL + 16)
-#define EL_INVISIBLE_SAND_ACTIVE       (EL_FIRST_RUNTIME_REAL + 17)
-#define EL_CONVEYOR_BELT_1_LEFT_ACTIVE  (EL_FIRST_RUNTIME_REAL + 18)
-#define EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE (EL_FIRST_RUNTIME_REAL + 19)
-#define EL_CONVEYOR_BELT_1_RIGHT_ACTIVE         (EL_FIRST_RUNTIME_REAL + 20)
-#define EL_CONVEYOR_BELT_2_LEFT_ACTIVE  (EL_FIRST_RUNTIME_REAL + 21)
-#define EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE (EL_FIRST_RUNTIME_REAL + 22)
-#define EL_CONVEYOR_BELT_2_RIGHT_ACTIVE         (EL_FIRST_RUNTIME_REAL + 23)
-#define EL_CONVEYOR_BELT_3_LEFT_ACTIVE  (EL_FIRST_RUNTIME_REAL + 24)
-#define EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE (EL_FIRST_RUNTIME_REAL + 25)
-#define EL_CONVEYOR_BELT_3_RIGHT_ACTIVE         (EL_FIRST_RUNTIME_REAL + 26)
-#define EL_CONVEYOR_BELT_4_LEFT_ACTIVE  (EL_FIRST_RUNTIME_REAL + 27)
-#define EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE (EL_FIRST_RUNTIME_REAL + 28)
-#define EL_CONVEYOR_BELT_4_RIGHT_ACTIVE         (EL_FIRST_RUNTIME_REAL + 29)
-#define EL_EXIT_OPENING                        (EL_FIRST_RUNTIME_REAL + 30)
-#define EL_SP_EXIT_OPEN                        (EL_FIRST_RUNTIME_REAL + 31)
-#define EL_SP_TERMINAL_ACTIVE          (EL_FIRST_RUNTIME_REAL + 32)
-#define EL_SP_BUGGY_BASE_ACTIVATING    (EL_FIRST_RUNTIME_REAL + 33)
-#define EL_SP_BUGGY_BASE_ACTIVE                (EL_FIRST_RUNTIME_REAL + 34)
-#define EL_SP_MURPHY_CLONE             (EL_FIRST_RUNTIME_REAL + 35)
-#define EL_AMOEBA_DROPPING             (EL_FIRST_RUNTIME_REAL + 36)
-#define EL_QUICKSAND_EMPTYING          (EL_FIRST_RUNTIME_REAL + 37)
-#define EL_MAGIC_WALL_ACTIVE           (EL_FIRST_RUNTIME_REAL + 38)
-#define EL_BD_MAGIC_WALL_ACTIVE                (EL_FIRST_RUNTIME_REAL + 39)
-#define EL_MAGIC_WALL_FULL             (EL_FIRST_RUNTIME_REAL + 40)
-#define EL_BD_MAGIC_WALL_FULL          (EL_FIRST_RUNTIME_REAL + 41)
-#define EL_MAGIC_WALL_EMPTYING         (EL_FIRST_RUNTIME_REAL + 42)
-#define EL_BD_MAGIC_WALL_EMPTYING      (EL_FIRST_RUNTIME_REAL + 43)
-#define EL_MAGIC_WALL_DEAD             (EL_FIRST_RUNTIME_REAL + 44)
-#define EL_BD_MAGIC_WALL_DEAD          (EL_FIRST_RUNTIME_REAL + 45)
+#define EL_DYNABOMB_PLAYER_1_ACTIVE    (EL_FIRST_RUNTIME_REAL + 0)
+#define EL_DYNABOMB_PLAYER_2_ACTIVE    (EL_FIRST_RUNTIME_REAL + 1)
+#define EL_DYNABOMB_PLAYER_3_ACTIVE    (EL_FIRST_RUNTIME_REAL + 2)
+#define EL_DYNABOMB_PLAYER_4_ACTIVE    (EL_FIRST_RUNTIME_REAL + 3)
+#define EL_SP_DISK_RED_ACTIVE          (EL_FIRST_RUNTIME_REAL + 4)
+#define EL_SWITCHGATE_OPENING          (EL_FIRST_RUNTIME_REAL + 5)
+#define EL_SWITCHGATE_CLOSING          (EL_FIRST_RUNTIME_REAL + 6)
+#define EL_TIMEGATE_OPENING            (EL_FIRST_RUNTIME_REAL + 7)
+#define EL_TIMEGATE_CLOSING            (EL_FIRST_RUNTIME_REAL + 8)
+#define EL_PEARL_BREAKING              (EL_FIRST_RUNTIME_REAL + 9)
+#define EL_TRAP_ACTIVE                 (EL_FIRST_RUNTIME_REAL + 10)
+#define EL_INVISIBLE_STEELWALL_ACTIVE  (EL_FIRST_RUNTIME_REAL + 11)
+#define EL_INVISIBLE_WALL_ACTIVE       (EL_FIRST_RUNTIME_REAL + 12)
+#define EL_INVISIBLE_SAND_ACTIVE       (EL_FIRST_RUNTIME_REAL + 13)
+#define EL_CONVEYOR_BELT_1_LEFT_ACTIVE  (EL_FIRST_RUNTIME_REAL + 14)
+#define EL_CONVEYOR_BELT_1_MIDDLE_ACTIVE (EL_FIRST_RUNTIME_REAL + 15)
+#define EL_CONVEYOR_BELT_1_RIGHT_ACTIVE         (EL_FIRST_RUNTIME_REAL + 16)
+#define EL_CONVEYOR_BELT_2_LEFT_ACTIVE  (EL_FIRST_RUNTIME_REAL + 17)
+#define EL_CONVEYOR_BELT_2_MIDDLE_ACTIVE (EL_FIRST_RUNTIME_REAL + 18)
+#define EL_CONVEYOR_BELT_2_RIGHT_ACTIVE         (EL_FIRST_RUNTIME_REAL + 19)
+#define EL_CONVEYOR_BELT_3_LEFT_ACTIVE  (EL_FIRST_RUNTIME_REAL + 20)
+#define EL_CONVEYOR_BELT_3_MIDDLE_ACTIVE (EL_FIRST_RUNTIME_REAL + 21)
+#define EL_CONVEYOR_BELT_3_RIGHT_ACTIVE         (EL_FIRST_RUNTIME_REAL + 22)
+#define EL_CONVEYOR_BELT_4_LEFT_ACTIVE  (EL_FIRST_RUNTIME_REAL + 23)
+#define EL_CONVEYOR_BELT_4_MIDDLE_ACTIVE (EL_FIRST_RUNTIME_REAL + 24)
+#define EL_CONVEYOR_BELT_4_RIGHT_ACTIVE         (EL_FIRST_RUNTIME_REAL + 25)
+#define EL_EXIT_OPENING                        (EL_FIRST_RUNTIME_REAL + 26)
+#define EL_EXIT_CLOSING                        (EL_FIRST_RUNTIME_REAL + 27)
+#define EL_SP_EXIT_OPEN                        (EL_FIRST_RUNTIME_REAL + 28)
+#define EL_SP_TERMINAL_ACTIVE          (EL_FIRST_RUNTIME_REAL + 29)
+#define EL_SP_BUGGY_BASE_ACTIVATING    (EL_FIRST_RUNTIME_REAL + 30)
+#define EL_SP_BUGGY_BASE_ACTIVE                (EL_FIRST_RUNTIME_REAL + 31)
+#define EL_SP_MURPHY_CLONE             (EL_FIRST_RUNTIME_REAL + 32)
+#define EL_AMOEBA_DROPPING             (EL_FIRST_RUNTIME_REAL + 33)
+#define EL_QUICKSAND_EMPTYING          (EL_FIRST_RUNTIME_REAL + 34)
+#define EL_MAGIC_WALL_ACTIVE           (EL_FIRST_RUNTIME_REAL + 35)
+#define EL_BD_MAGIC_WALL_ACTIVE                (EL_FIRST_RUNTIME_REAL + 36)
+#define EL_MAGIC_WALL_FULL             (EL_FIRST_RUNTIME_REAL + 37)
+#define EL_BD_MAGIC_WALL_FULL          (EL_FIRST_RUNTIME_REAL + 38)
+#define EL_MAGIC_WALL_EMPTYING         (EL_FIRST_RUNTIME_REAL + 39)
+#define EL_BD_MAGIC_WALL_EMPTYING      (EL_FIRST_RUNTIME_REAL + 40)
+#define EL_MAGIC_WALL_DEAD             (EL_FIRST_RUNTIME_REAL + 41)
+#define EL_BD_MAGIC_WALL_DEAD          (EL_FIRST_RUNTIME_REAL + 42)
 
 /* "unreal" (and therefore not drawable) runtime elements */
-#define EL_FIRST_RUNTIME_UNREAL                (EL_FIRST_RUNTIME_REAL + 46)
+#define EL_FIRST_RUNTIME_UNREAL                (EL_FIRST_RUNTIME_REAL + 43)
 
 #define EL_BLOCKED                     (EL_FIRST_RUNTIME_UNREAL + 0)
 #define EL_EXPLOSION                   (EL_FIRST_RUNTIME_UNREAL + 1)
 #define GFX_ARG_GLOBAL_SYNC                    15
 #define GFX_ARG_CRUMBLED_LIKE                  16
 #define GFX_ARG_DIGGABLE_LIKE                  17
-#define GFX_ARG_STEP_OFFSET                    18
-#define GFX_ARG_STEP_DELAY                     19
-#define GFX_ARG_DIRECTION                      20
-#define GFX_ARG_POSITION                       21
-#define GFX_ARG_DRAW_XOFFSET                   22
-#define GFX_ARG_DRAW_YOFFSET                   23
-#define GFX_ARG_NAME                           24
+#define GFX_ARG_BORDER_SIZE                    18
+#define GFX_ARG_STEP_OFFSET                    19
+#define GFX_ARG_STEP_DELAY                     20
+#define GFX_ARG_DIRECTION                      21
+#define GFX_ARG_POSITION                       22
+#define GFX_ARG_DRAW_XOFFSET                   23
+#define GFX_ARG_DRAW_YOFFSET                   24
+#define GFX_ARG_DRAW_MASKED                    25
+#define GFX_ARG_NAME                           26
 
-#define NUM_GFX_ARGS                           25
+#define NUM_GFX_ARGS                           27
 
 
 /* values for sound configuration suffixes */
 
 #define PROGRAM_VERSION_MAJOR  3
 #define PROGRAM_VERSION_MINOR  0
-#define PROGRAM_VERSION_PATCH  3
+#define PROGRAM_VERSION_PATCH  5
 #define PROGRAM_VERSION_RELEASE        0
-#define PROGRAM_VERSION_STRING "3.0.3"
+#define PROGRAM_VERSION_STRING "3.0.5"
 
 #define PROGRAM_TITLE_STRING   "Rocks'n'Diamonds"
 #define PROGRAM_AUTHOR_STRING  "Holger Schemel"
 #define EMU_SOKOBAN            2
 #define EMU_SUPAPLEX           3
 
+struct MenuInfo
+{
+  int draw_xoffset_default;
+  int draw_yoffset_default;
+  int draw_xoffset[NUM_SPECIAL_GFX_ARGS];
+  int draw_yoffset[NUM_SPECIAL_GFX_ARGS];
+
+  int scrollbar_xoffset;
+
+  int list_size_default;
+  int list_size[NUM_SPECIAL_GFX_ARGS];
+};
+
+struct DoorInfo
+{
+  int step_offset;
+  int step_delay;
+  int anim_mode;
+};
+
+struct EnvelopeInfo
+{
+  int anim_mode;
+};
+
 struct HiScore
 {
   char Name[MAX_PLAYER_NAME_LEN + 1];
@@ -1092,6 +1146,8 @@ struct PlayerInfo
   boolean is_digging;
   boolean is_collecting;
 
+  int show_envelope;
+
   unsigned long move_delay;
   int move_delay_value;
 
@@ -1128,8 +1184,8 @@ struct LevelInfo
   int gems_needed;
   char name[MAX_LEVEL_NAME_LEN + 1];
   char author[MAX_LEVEL_AUTHOR_LEN + 1];
-  char envelope[MAX_ENVELOPE_TEXT_LEN + 1];
-  int envelope_xsize, envelope_ysize;
+  char envelope_text[4][MAX_ENVELOPE_TEXT_LEN + 1];
+  int envelope_xsize[4], envelope_ysize[4];
   int score[LEVEL_SCORE_ELEMENTS];
   int yamyam_content[MAX_ELEMENT_CONTENTS][3][3];
   int num_yamyam_contents;
@@ -1191,6 +1247,8 @@ struct GameInfo
   int initial_move_delay;
   int initial_move_delay_value;
 
+  struct EnvelopeInfo envelope;
+
   /* variable within running game */
   int yamyam_content_nr;
   boolean magic_wall_active;
@@ -1216,30 +1274,12 @@ struct GlobalInfo
   int fps_slowdown_factor;
 };
 
-struct MenuInfo
-{
-  int draw_xoffset_default;
-  int draw_yoffset_default;
-  int draw_xoffset[NUM_SPECIAL_GFX_ARGS];
-  int draw_yoffset[NUM_SPECIAL_GFX_ARGS];
-
-  int scrollbar_xoffset;
-
-  int list_size_default;
-  int list_size[NUM_SPECIAL_GFX_ARGS];
-};
-
-struct DoorInfo
-{
-  int step_offset;
-  int step_delay;
-};
-
 struct ElementChangeInfo
 {
   boolean can_change;          /* use or ignore this change info */
 
-  unsigned long events;                /* bitfield for change events */
+  unsigned long events;                /* change events */
+  int sides;                   /* change sides */
 
   short target_element;                /* target element after change */
 
@@ -1266,9 +1306,8 @@ struct ElementChangeInfo
 
   /* ---------- internal values used in level editor ---------- */
 
-  int player_action;           /* touched/pressed/pushed by player */
-  int collide_action;          /* collision/impact/smashed */
-  int other_action;            /* various change actions */
+  int direct_action;           /* change triggered by actions on element */
+  int other_action;            /* change triggered by other element actions */
 };
 
 struct ElementInfo
@@ -1327,7 +1366,7 @@ struct ElementInfo
 
   unsigned long change_events; /* bitfield for combined change events */
 
-  int event_page_num[NUM_CHANGE_EVENTS]; /* page number for each event */
+  int event_page_nr[NUM_CHANGE_EVENTS]; /* page number for each event */
   struct ElementChangeInfo *event_page[NUM_CHANGE_EVENTS]; /* page for event */
 
   /* ---------- internal values used in level editor ---------- */
@@ -1371,12 +1410,15 @@ struct GraphicInfo
   boolean anim_global_sync;
   int crumbled_like;           /* element for cloning crumble graphics */
   int diggable_like;           /* element for cloning digging graphics */
+  int border_size;             /* border size for "crumbled" graphics */
 
   int step_offset;             /* optional step offset of toon animations */
   int step_delay;              /* optional step delay of toon animations */
 
   int draw_x, draw_y;          /* optional offset for drawing fonts chars */
 
+  int draw_masked;             /* optional setting for drawing envelope gfx */
+
 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
   Pixmap clip_mask;            /* single-graphic-only clip mask for X11 */
   GC clip_gc;                  /* single-graphic-only clip gc for X11 */
@@ -1437,7 +1479,8 @@ extern short                      StorePlayer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern short                   Back[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern boolean                 Stop[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern boolean                 Pushed[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
-extern boolean                 Changing[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
+extern unsigned long           Changed[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
+extern unsigned long           ChangeEvent[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern short                   JustStopped[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern short                   AmoebaNr[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern short                   AmoebaCnt[MAX_NUM_AMOEBA];