rnd-20070121-2-src
[rocksndiamonds.git] / src / init.c
index 7f29f4bd1f998ae03ecf1f600df506deba879230..49006fa1f8d547466c514a458bc3f3bc927d7ce0 100644 (file)
@@ -104,6 +104,8 @@ void InitGadgets()
   CreateToolButtons();
   CreateScreenGadgets();
 
+  InitGadgetsSoundCallback(PlaySoundActivating, PlaySoundSelecting);
+
   gadgets_initialized = TRUE;
 }
 
@@ -165,7 +167,7 @@ static int getFontBitmapID(int font_nr)
 {
   int special = -1;
 
-  if (game_status >= GAME_MODE_MAIN && game_status <= GAME_MODE_PSEUDO_PREVIEW)
+  if (game_status >= GAME_MODE_TITLE && game_status <= GAME_MODE_PSEUDO_PREVIEW)
     special = game_status;
   else if (game_status == GAME_MODE_PSEUDO_TYPENAME)
     special = GFX_SPECIAL_ARG_MAIN;
@@ -949,13 +951,13 @@ static void set_graphic_parameters(int graphic)
 
   graphic_info[graphic].bitmap = src_bitmap;
 
-  /* start with reliable default values */
+  /* always start with reliable default values */
   graphic_info[graphic].src_image_width = 0;
   graphic_info[graphic].src_image_height = 0;
   graphic_info[graphic].src_x = 0;
   graphic_info[graphic].src_y = 0;
-  graphic_info[graphic].width = TILEX;
-  graphic_info[graphic].height = TILEY;
+  graphic_info[graphic].width  = TILEX;        /* default for element graphics */
+  graphic_info[graphic].height = TILEY;        /* default for element graphics */
   graphic_info[graphic].offset_x = 0;  /* one or both of these values ... */
   graphic_info[graphic].offset_y = 0;  /* ... will be corrected later */
   graphic_info[graphic].offset2_x = 0; /* one or both of these values ... */
@@ -974,6 +976,23 @@ static void set_graphic_parameters(int graphic)
   graphic_info[graphic].post_delay = -1;
   graphic_info[graphic].auto_delay = -1;
 
+#if 1
+  /* optional zoom factor for scaling up the image to a larger size */
+  if (parameter[GFX_ARG_SCALE_UP_FACTOR] != ARG_UNDEFINED_VALUE)
+    graphic_info[graphic].scale_up_factor = parameter[GFX_ARG_SCALE_UP_FACTOR];
+  if (graphic_info[graphic].scale_up_factor < 1)
+    graphic_info[graphic].scale_up_factor = 1;         /* no scaling */
+#endif
+
+#if 1
+  if (graphic_info[graphic].use_image_size)
+  {
+    /* set new default bitmap size (with scaling, but without small images) */
+    graphic_info[graphic].width  = get_scaled_graphic_width(graphic);
+    graphic_info[graphic].height = get_scaled_graphic_height(graphic);
+  }
+#endif
+
   /* optional x and y tile position of animation frame sequence */
   if (parameter[GFX_ARG_XPOS] != ARG_UNDEFINED_VALUE)
     graphic_info[graphic].src_x = parameter[GFX_ARG_XPOS] * TILEX;
@@ -992,11 +1011,13 @@ static void set_graphic_parameters(int graphic)
   if (parameter[GFX_ARG_HEIGHT] != ARG_UNDEFINED_VALUE)
     graphic_info[graphic].height = parameter[GFX_ARG_HEIGHT];
 
+#if 0
   /* optional zoom factor for scaling up the image to a larger size */
   if (parameter[GFX_ARG_SCALE_UP_FACTOR] != ARG_UNDEFINED_VALUE)
     graphic_info[graphic].scale_up_factor = parameter[GFX_ARG_SCALE_UP_FACTOR];
   if (graphic_info[graphic].scale_up_factor < 1)
     graphic_info[graphic].scale_up_factor = 1;         /* no scaling */
+#endif
 
   if (src_bitmap)
   {
@@ -1201,10 +1222,61 @@ static void InitGraphicInfo()
   GC copy_clipmask_gc = None;
 #endif
 
+  /* use image size as default values for width and height for these images */
+  static int full_size_graphics[] =
+  {
+    IMG_GLOBAL_BORDER,
+    IMG_GLOBAL_DOOR,
+
+    IMG_BACKGROUND_ENVELOPE_1,
+    IMG_BACKGROUND_ENVELOPE_2,
+    IMG_BACKGROUND_ENVELOPE_3,
+    IMG_BACKGROUND_ENVELOPE_4,
+
+    IMG_BACKGROUND,
+    IMG_BACKGROUND_TITLE,
+    IMG_BACKGROUND_MESSAGE,
+    IMG_BACKGROUND_MAIN,
+    IMG_BACKGROUND_LEVELS,
+    IMG_BACKGROUND_SCORES,
+    IMG_BACKGROUND_EDITOR,
+    IMG_BACKGROUND_INFO,
+    IMG_BACKGROUND_INFO_ELEMENTS,
+    IMG_BACKGROUND_INFO_MUSIC,
+    IMG_BACKGROUND_INFO_CREDITS,
+    IMG_BACKGROUND_INFO_PROGRAM,
+    IMG_BACKGROUND_INFO_LEVELSET,
+    IMG_BACKGROUND_SETUP,
+    IMG_BACKGROUND_DOOR,
+
+    IMG_TITLESCREEN_INITIAL_1,
+    IMG_TITLESCREEN_INITIAL_2,
+    IMG_TITLESCREEN_INITIAL_3,
+    IMG_TITLESCREEN_INITIAL_4,
+    IMG_TITLESCREEN_INITIAL_5,
+    IMG_TITLESCREEN_1,
+    IMG_TITLESCREEN_2,
+    IMG_TITLESCREEN_3,
+    IMG_TITLESCREEN_4,
+    IMG_TITLESCREEN_5,
+
+    -1
+  };
+
   checked_free(graphic_info);
 
   graphic_info = checked_calloc(num_images * sizeof(struct GraphicInfo));
 
+#if 1
+  /* initialize "use_image_size" flag with default value */
+  for (i = 0; i < num_images; i++)
+    graphic_info[i].use_image_size = FALSE;
+
+  /* initialize "use_image_size" flag from static configuration above */
+  for (i = 0; full_size_graphics[i] != -1; i++)
+    graphic_info[full_size_graphics[i]].use_image_size = TRUE;
+#endif
+
 #if defined(TARGET_X11_NATIVE_PERFORMANCE_WORKAROUND)
   if (clipmasks_initialized)
   {
@@ -1234,6 +1306,7 @@ static void InitGraphicInfo()
   {
     Bitmap *src_bitmap;
     int src_x, src_y;
+    int width, height;
     int first_frame, last_frame;
     int src_bitmap_width, src_bitmap_height;
 
@@ -1242,6 +1315,10 @@ static void InitGraphicInfo()
     if (graphic_info[i].bitmap == NULL)
       continue;                /* skip check for optional images that are undefined */
 
+    /* get image size (this can differ from the standard element tile size!) */
+    width  = graphic_info[i].width;
+    height = graphic_info[i].height;
+
     /* get final bitmap size (with scaling, but without small images) */
     src_bitmap_width  = graphic_info[i].src_image_width;
     src_bitmap_height = graphic_info[i].src_image_height;
@@ -1251,9 +1328,15 @@ static void InitGraphicInfo()
     first_frame = 0;
     getGraphicSource(i, first_frame, &src_bitmap, &src_x, &src_y);
 
+#if 1
+    /* this avoids calculating wrong start position for out-of-bounds frame */
+    src_x = graphic_info[i].src_x;
+    src_y = graphic_info[i].src_y;
+#endif
+
     if (src_x < 0 || src_y < 0 ||
-       src_x + TILEX > src_bitmap_width ||
-       src_y + TILEY > src_bitmap_height)
+       src_x + width  > src_bitmap_width ||
+       src_y + height > src_bitmap_height)
     {
       Error(ERR_RETURN_LINE, "-");
       Error(ERR_RETURN, "warning: error found in config file:");
@@ -1280,8 +1363,8 @@ static void InitGraphicInfo()
     getGraphicSource(i, last_frame, &src_bitmap, &src_x, &src_y);
 
     if (src_x < 0 || src_y < 0 ||
-       src_x + TILEX > src_bitmap_width ||
-       src_y + TILEY > src_bitmap_height)
+       src_x + width  > src_bitmap_width ||
+       src_y + height > src_bitmap_height)
     {
       Error(ERR_RETURN_LINE, "-");
       Error(ERR_RETURN, "warning: error found in config file:");
@@ -1940,6 +2023,7 @@ void InitElementPropertiesStatic()
     /* (if amoeba can grow into anything diggable, maybe keep these out) */
 #if 0
     EL_LANDMINE,
+    EL_DC_LANDMINE,
     EL_TRAP_ACTIVE,
     EL_SP_BUGGY_BASE_ACTIVE,
     EL_EMC_PLANT,
@@ -1977,7 +2061,7 @@ void InitElementPropertiesStatic()
     EL_SP_DISK_RED,
     EL_PEARL,
     EL_CRYSTAL,
-    EL_KEY_WHITE,
+    EL_DC_KEY_WHITE,
     EL_SHIELD_NORMAL,
     EL_SHIELD_DEADLY,
     EL_EXTRA_TIME,
@@ -1989,6 +2073,11 @@ void InitElementPropertiesStatic()
     EL_EMC_LENSES,
     EL_EMC_MAGNIFIER,
 
+#if 0
+    /* !!! handle separately !!! */
+    EL_DC_LANDMINE,    /* deadly when running into, but can be snapped */
+#endif
+
     -1
   };
 
@@ -2015,6 +2104,7 @@ void InitElementPropertiesStatic()
     /* !!! maybe this should better be handled by 'ep_diggable' !!! */
 #if 1
     EL_LANDMINE,
+    EL_DC_LANDMINE,
     EL_TRAP_ACTIVE,
     EL_SP_BUGGY_BASE_ACTIVE,
     EL_EMC_PLANT,
@@ -2093,13 +2183,44 @@ void InitElementPropertiesStatic()
     EL_SIGN_STOP,
     EL_SIGN_WHEELCHAIR,
     EL_SIGN_PARKING,
-    EL_SIGN_ONEWAY,
+    EL_SIGN_NO_ENTRY,
+    EL_SIGN_UNUSED_1,
+    EL_SIGN_GIVE_WAY,
+    EL_SIGN_ENTRY_FORBIDDEN,
+    EL_SIGN_EMERGENCY_EXIT,
+    EL_SIGN_YIN_YANG,
+    EL_SIGN_UNUSED_2,
+    EL_SIGN_SPERMS,
+    EL_SIGN_BULLET,
     EL_SIGN_HEART,
-    EL_SIGN_TRIANGLE,
-    EL_SIGN_ROUND,
-    EL_SIGN_EXIT,
-    EL_SIGN_YINYANG,
-    EL_SIGN_OTHER,
+    EL_SIGN_CROSS,
+    EL_SIGN_FRANKIE,
+    EL_STEEL_EXIT_CLOSED,
+    EL_STEEL_EXIT_OPEN,
+    EL_EM_STEEL_EXIT_CLOSED,
+    EL_EM_STEEL_EXIT_OPEN,
+    EL_DC_STEELWALL_1_LEFT,
+    EL_DC_STEELWALL_1_RIGHT,
+    EL_DC_STEELWALL_1_TOP,
+    EL_DC_STEELWALL_1_BOTTOM,
+    EL_DC_STEELWALL_1_HORIZONTAL,
+    EL_DC_STEELWALL_1_VERTICAL,
+    EL_DC_STEELWALL_1_TOPLEFT,
+    EL_DC_STEELWALL_1_TOPRIGHT,
+    EL_DC_STEELWALL_1_BOTTOMLEFT,
+    EL_DC_STEELWALL_1_BOTTOMRIGHT,
+    EL_DC_STEELWALL_1_TOPLEFT_2,
+    EL_DC_STEELWALL_1_TOPRIGHT_2,
+    EL_DC_STEELWALL_1_BOTTOMLEFT_2,
+    EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
+    EL_DC_STEELWALL_2_LEFT,
+    EL_DC_STEELWALL_2_RIGHT,
+    EL_DC_STEELWALL_2_TOP,
+    EL_DC_STEELWALL_2_BOTTOM,
+    EL_DC_STEELWALL_2_HORIZONTAL,
+    EL_DC_STEELWALL_2_VERTICAL,
+    EL_DC_STEELWALL_2_MIDDLE,
+    EL_DC_STEELWALL_2_SINGLE,
     EL_STEELWALL_SLIPPERY,
     EL_EMC_STEELWALL_1,
     EL_EMC_STEELWALL_2,
@@ -2142,21 +2263,25 @@ void InitElementPropertiesStatic()
     EL_EMC_GATE_6_GRAY_ACTIVE,
     EL_EMC_GATE_7_GRAY_ACTIVE,
     EL_EMC_GATE_8_GRAY_ACTIVE,
+    EL_DC_GATE_WHITE,
+    EL_DC_GATE_WHITE_GRAY,
+    EL_DC_GATE_WHITE_GRAY_ACTIVE,
+    EL_DC_GATE_FAKE_GRAY,
     EL_SWITCHGATE_OPEN,
     EL_SWITCHGATE_OPENING,
     EL_SWITCHGATE_CLOSED,
     EL_SWITCHGATE_CLOSING,
-#if 0
-    EL_SWITCHGATE_SWITCH_UP,
-    EL_SWITCHGATE_SWITCH_DOWN,
+#if 1
+    EL_DC_SWITCHGATE_SWITCH_UP,
+    EL_DC_SWITCHGATE_SWITCH_DOWN,
 #endif
     EL_TIMEGATE_OPEN,
     EL_TIMEGATE_OPENING,
     EL_TIMEGATE_CLOSED,
     EL_TIMEGATE_CLOSING,
-#if 0
-    EL_TIMEGATE_SWITCH,
-    EL_TIMEGATE_SWITCH_ACTIVE,
+#if 1
+    EL_DC_TIMEGATE_SWITCH,
+    EL_DC_TIMEGATE_SWITCH_ACTIVE,
 #endif
     EL_TUBE_ANY,
     EL_TUBE_VERTICAL,
@@ -2169,6 +2294,9 @@ void InitElementPropertiesStatic()
     EL_TUBE_LEFT_DOWN,
     EL_TUBE_RIGHT_UP,
     EL_TUBE_RIGHT_DOWN,
+    EL_EXPANDABLE_STEELWALL_HORIZONTAL,
+    EL_EXPANDABLE_STEELWALL_VERTICAL,
+    EL_EXPANDABLE_STEELWALL_ANY,
 
     -1
   };
@@ -2261,8 +2389,10 @@ void InitElementPropertiesStatic()
     EL_NUT,
     EL_AMOEBA_DROP,
     EL_QUICKSAND_FULL,
+    EL_QUICKSAND_FAST_FULL,
     EL_MAGIC_WALL_FULL,
     EL_BD_MAGIC_WALL_FULL,
+    EL_DC_MAGIC_WALL_FULL,
     EL_TIME_ORB_FULL,
     EL_TIME_ORB_EMPTY,
     EL_SP_ZONK,
@@ -2390,8 +2520,11 @@ void InitElementPropertiesStatic()
     EL_SP_EMPTY_SPACE,
     EL_SOKOBAN_FIELD_EMPTY,
     EL_EXIT_OPEN,
+    EL_EM_EXIT_OPEN,
     EL_SP_EXIT_OPEN,
     EL_SP_EXIT_OPENING,
+    EL_STEEL_EXIT_OPEN,
+    EL_EM_STEEL_EXIT_OPEN,
     EL_GATE_1,
     EL_GATE_2,
     EL_GATE_3,
@@ -2459,6 +2592,9 @@ void InitElementPropertiesStatic()
     EL_EMC_GATE_6_GRAY_ACTIVE,
     EL_EMC_GATE_7_GRAY_ACTIVE,
     EL_EMC_GATE_8_GRAY_ACTIVE,
+    EL_DC_GATE_WHITE,
+    EL_DC_GATE_WHITE_GRAY,
+    EL_DC_GATE_WHITE_GRAY_ACTIVE,
     EL_SWITCHGATE_OPEN,
     EL_TIMEGATE_OPEN,
 
@@ -2571,6 +2707,9 @@ void InitElementPropertiesStatic()
     EL_EMC_GATE_6_GRAY_ACTIVE,
     EL_EMC_GATE_7_GRAY_ACTIVE,
     EL_EMC_GATE_8_GRAY_ACTIVE,
+    EL_DC_GATE_WHITE,
+    EL_DC_GATE_WHITE_GRAY,
+    EL_DC_GATE_WHITE_GRAY_ACTIVE,
     EL_SWITCHGATE_OPEN,
     EL_TIMEGATE_OPEN,
 
@@ -2700,6 +2839,22 @@ void InitElementPropertiesStatic()
     -1
   };
 
+  static int ep_can_pass_dc_magic_wall[] =
+  {
+    EL_ROCK,
+    EL_BD_ROCK,
+    EL_EMERALD,
+    EL_BD_DIAMOND,
+    EL_EMERALD_YELLOW,
+    EL_EMERALD_RED,
+    EL_EMERALD_PURPLE,
+    EL_DIAMOND,
+    EL_PEARL,
+    EL_CRYSTAL,
+
+    -1
+  };
+
   static int ep_switchable[] =
   {
     EL_ROBOT_WHEEL,
@@ -2718,9 +2873,12 @@ void InitElementPropertiesStatic()
     EL_CONVEYOR_BELT_4_SWITCH_RIGHT,
     EL_SWITCHGATE_SWITCH_UP,
     EL_SWITCHGATE_SWITCH_DOWN,
+    EL_DC_SWITCHGATE_SWITCH_UP,
+    EL_DC_SWITCHGATE_SWITCH_DOWN,
     EL_LIGHT_SWITCH,
     EL_LIGHT_SWITCH_ACTIVE,
     EL_TIMEGATE_SWITCH,
+    EL_DC_TIMEGATE_SWITCH,
     EL_BALLOON_SWITCH_LEFT,
     EL_BALLOON_SWITCH_RIGHT,
     EL_BALLOON_SWITCH_UP,
@@ -3056,8 +3214,12 @@ void InitElementPropertiesStatic()
     EL_INVISIBLE_WALL_ACTIVE,
     EL_SWITCHGATE_SWITCH_UP,
     EL_SWITCHGATE_SWITCH_DOWN,
+    EL_DC_SWITCHGATE_SWITCH_UP,
+    EL_DC_SWITCHGATE_SWITCH_DOWN,
     EL_TIMEGATE_SWITCH,
     EL_TIMEGATE_SWITCH_ACTIVE,
+    EL_DC_TIMEGATE_SWITCH,
+    EL_DC_TIMEGATE_SWITCH_ACTIVE,
     EL_EMC_WALL_1,
     EL_EMC_WALL_2,
     EL_EMC_WALL_3,
@@ -3112,13 +3274,42 @@ void InitElementPropertiesStatic()
     EL_SIGN_STOP,
     EL_SIGN_WHEELCHAIR,
     EL_SIGN_PARKING,
-    EL_SIGN_ONEWAY,
+    EL_SIGN_NO_ENTRY,
+    EL_SIGN_UNUSED_1,
+    EL_SIGN_GIVE_WAY,
+    EL_SIGN_ENTRY_FORBIDDEN,
+    EL_SIGN_EMERGENCY_EXIT,
+    EL_SIGN_YIN_YANG,
+    EL_SIGN_UNUSED_2,
+    EL_SIGN_SPERMS,
+    EL_SIGN_BULLET,
     EL_SIGN_HEART,
-    EL_SIGN_TRIANGLE,
-    EL_SIGN_ROUND,
-    EL_SIGN_EXIT,
-    EL_SIGN_YINYANG,
-    EL_SIGN_OTHER,
+    EL_SIGN_CROSS,
+    EL_SIGN_FRANKIE,
+    EL_STEEL_EXIT_CLOSED,
+    EL_STEEL_EXIT_OPEN,
+    EL_DC_STEELWALL_1_LEFT,
+    EL_DC_STEELWALL_1_RIGHT,
+    EL_DC_STEELWALL_1_TOP,
+    EL_DC_STEELWALL_1_BOTTOM,
+    EL_DC_STEELWALL_1_HORIZONTAL,
+    EL_DC_STEELWALL_1_VERTICAL,
+    EL_DC_STEELWALL_1_TOPLEFT,
+    EL_DC_STEELWALL_1_TOPRIGHT,
+    EL_DC_STEELWALL_1_BOTTOMLEFT,
+    EL_DC_STEELWALL_1_BOTTOMRIGHT,
+    EL_DC_STEELWALL_1_TOPLEFT_2,
+    EL_DC_STEELWALL_1_TOPRIGHT_2,
+    EL_DC_STEELWALL_1_BOTTOMLEFT_2,
+    EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
+    EL_DC_STEELWALL_2_LEFT,
+    EL_DC_STEELWALL_2_RIGHT,
+    EL_DC_STEELWALL_2_TOP,
+    EL_DC_STEELWALL_2_BOTTOM,
+    EL_DC_STEELWALL_2_HORIZONTAL,
+    EL_DC_STEELWALL_2_VERTICAL,
+    EL_DC_STEELWALL_2_MIDDLE,
+    EL_DC_STEELWALL_2_SINGLE,
     EL_STEELWALL_SLIPPERY,
     EL_EMC_STEELWALL_1,
     EL_EMC_STEELWALL_2,
@@ -3298,6 +3489,9 @@ void InitElementPropertiesStatic()
     EL_EMC_GATE_6_GRAY_ACTIVE,
     EL_EMC_GATE_7_GRAY_ACTIVE,
     EL_EMC_GATE_8_GRAY_ACTIVE,
+    EL_DC_GATE_WHITE,
+    EL_DC_GATE_WHITE_GRAY,
+    EL_DC_GATE_WHITE_GRAY_ACTIVE,
 
     -1
   };
@@ -3390,6 +3584,7 @@ void InitElementPropertiesStatic()
     EL_STEELWALL,
     EL_AMOEBA_DEAD,
     EL_QUICKSAND_EMPTY,
+    EL_QUICKSAND_FAST_EMPTY,
     EL_STONEBLOCK,
     EL_ROBOT_WHEEL,
     EL_KEY_1,
@@ -3440,6 +3635,10 @@ void InitElementPropertiesStatic()
     EL_EMC_GATE_6_GRAY_ACTIVE,
     EL_EMC_GATE_7_GRAY_ACTIVE,
     EL_EMC_GATE_8_GRAY_ACTIVE,
+    EL_DC_GATE_WHITE,
+    EL_DC_GATE_WHITE_GRAY,
+    EL_DC_GATE_WHITE_GRAY_ACTIVE,
+    EL_DC_GATE_FAKE_GRAY,
     EL_DYNAMITE,
     EL_EM_DYNAMITE,
     EL_INVISIBLE_STEELWALL,
@@ -3470,6 +3669,8 @@ void InitElementPropertiesStatic()
     EL_MAGIC_WALL_DEAD,
     EL_BD_MAGIC_WALL,
     EL_BD_MAGIC_WALL_DEAD,
+    EL_DC_MAGIC_WALL,
+    EL_DC_MAGIC_WALL_DEAD,
     EL_AMOEBA_TO_DIAMOND,
     EL_BLOCKED,
     EL_SP_EMPTY,
@@ -3530,13 +3731,40 @@ void InitElementPropertiesStatic()
     EL_SIGN_STOP,
     EL_SIGN_WHEELCHAIR,
     EL_SIGN_PARKING,
-    EL_SIGN_ONEWAY,
+    EL_SIGN_NO_ENTRY,
+    EL_SIGN_UNUSED_1,
+    EL_SIGN_GIVE_WAY,
+    EL_SIGN_ENTRY_FORBIDDEN,
+    EL_SIGN_EMERGENCY_EXIT,
+    EL_SIGN_YIN_YANG,
+    EL_SIGN_UNUSED_2,
+    EL_SIGN_SPERMS,
+    EL_SIGN_BULLET,
     EL_SIGN_HEART,
-    EL_SIGN_TRIANGLE,
-    EL_SIGN_ROUND,
-    EL_SIGN_EXIT,
-    EL_SIGN_YINYANG,
-    EL_SIGN_OTHER,
+    EL_SIGN_CROSS,
+    EL_SIGN_FRANKIE,
+    EL_DC_STEELWALL_1_LEFT,
+    EL_DC_STEELWALL_1_RIGHT,
+    EL_DC_STEELWALL_1_TOP,
+    EL_DC_STEELWALL_1_BOTTOM,
+    EL_DC_STEELWALL_1_HORIZONTAL,
+    EL_DC_STEELWALL_1_VERTICAL,
+    EL_DC_STEELWALL_1_TOPLEFT,
+    EL_DC_STEELWALL_1_TOPRIGHT,
+    EL_DC_STEELWALL_1_BOTTOMLEFT,
+    EL_DC_STEELWALL_1_BOTTOMRIGHT,
+    EL_DC_STEELWALL_1_TOPLEFT_2,
+    EL_DC_STEELWALL_1_TOPRIGHT_2,
+    EL_DC_STEELWALL_1_BOTTOMLEFT_2,
+    EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
+    EL_DC_STEELWALL_2_LEFT,
+    EL_DC_STEELWALL_2_RIGHT,
+    EL_DC_STEELWALL_2_TOP,
+    EL_DC_STEELWALL_2_BOTTOM,
+    EL_DC_STEELWALL_2_HORIZONTAL,
+    EL_DC_STEELWALL_2_VERTICAL,
+    EL_DC_STEELWALL_2_MIDDLE,
+    EL_DC_STEELWALL_2_SINGLE,
     EL_STEELWALL_SLIPPERY,
     EL_EMC_STEELWALL_1,
     EL_EMC_STEELWALL_2,
@@ -3575,6 +3803,7 @@ void InitElementPropertiesStatic()
   {
     EL_SAND,
     EL_LANDMINE,
+    EL_DC_LANDMINE,
     EL_TRAP,
     EL_TRAP_ACTIVE,
 
@@ -3592,6 +3821,7 @@ void InitElementPropertiesStatic()
     EL_INTERNAL_CASCADE_DC_ACTIVE,
     EL_INTERNAL_CASCADE_DX_ACTIVE,
     EL_INTERNAL_CASCADE_CHARS_ACTIVE,
+    EL_INTERNAL_CASCADE_STEEL_CHARS_ACTIVE,
     EL_INTERNAL_CASCADE_CE_ACTIVE,
     EL_INTERNAL_CASCADE_GE_ACTIVE,
     EL_INTERNAL_CASCADE_REF_ACTIVE,
@@ -3612,6 +3842,7 @@ void InitElementPropertiesStatic()
     EL_INTERNAL_CASCADE_DC,
     EL_INTERNAL_CASCADE_DX,
     EL_INTERNAL_CASCADE_CHARS,
+    EL_INTERNAL_CASCADE_STEEL_CHARS,
     EL_INTERNAL_CASCADE_CE,
     EL_INTERNAL_CASCADE_GE,
     EL_INTERNAL_CASCADE_REF,
@@ -3673,6 +3904,7 @@ void InitElementPropertiesStatic()
 
     { ep_player,                       EP_PLAYER                       },
     { ep_can_pass_magic_wall,          EP_CAN_PASS_MAGIC_WALL          },
+    { ep_can_pass_dc_magic_wall,       EP_CAN_PASS_DC_MAGIC_WALL       },
     { ep_switchable,                   EP_SWITCHABLE                   },
     { ep_bd_element,                   EP_BD_ELEMENT                   },
     { ep_sp_element,                   EP_SP_ELEMENT                   },
@@ -3728,6 +3960,10 @@ void InitElementPropertiesStatic()
       if (HAS_PROPERTY(copy_properties[j][0], i))
        for (k = 1; k <= 4; k++)
          SET_PROPERTY(copy_properties[j][k], i, TRUE);
+
+  /* set static element properties that are not listed in array definitions */
+  for (i = EL_STEEL_CHAR_START; i <= EL_STEEL_CHAR_END; i++)
+    SET_PROPERTY(i, EP_INDESTRUCTIBLE, TRUE);
 }
 
 void InitElementPropertiesEngine(int engine_version)
@@ -3782,7 +4018,10 @@ void InitElementPropertiesEngine(int engine_version)
   for (i = 0; i < MAX_NUM_ELEMENTS; i++)
   {
     /* ---------- INACTIVE ------------------------------------------------- */
-    SET_PROPERTY(i, EP_INACTIVE, (i >= EL_CHAR_START && i <= EL_CHAR_END));
+    SET_PROPERTY(i, EP_INACTIVE, ((i >= EL_CHAR_START &&
+                                  i <= EL_CHAR_END) ||
+                                 (i >= EL_STEEL_CHAR_START &&
+                                  i <= EL_STEEL_CHAR_END)));
 
     /* ---------- WALKABLE, PASSABLE, ACCESSIBLE --------------------------- */
     SET_PROPERTY(i, EP_WALKABLE, (IS_WALKABLE_OVER(i) ||
@@ -3836,7 +4075,6 @@ void InitElementPropertiesEngine(int engine_version)
                                             !IS_COLLECTIBLE(i)));
 
     /* ---------- DRAGONFIRE_PROOF ----------------------------------------- */
-
     if (IS_HISTORIC_SOLID(i) || i == EL_EXPLOSION)
       SET_PROPERTY(i, EP_DRAGONFIRE_PROOF, TRUE);
     else
@@ -3959,12 +4197,16 @@ void InitElementPropertiesEngine(int engine_version)
   {
     static int ep_em_slippery_wall[] =
     {
-      EL_STEELWALL,
       EL_WALL,
+      EL_STEELWALL,
       EL_EXPANDABLE_WALL,
       EL_EXPANDABLE_WALL_HORIZONTAL,
       EL_EXPANDABLE_WALL_VERTICAL,
       EL_EXPANDABLE_WALL_ANY,
+      EL_EXPANDABLE_STEELWALL_HORIZONTAL,
+      EL_EXPANDABLE_STEELWALL_VERTICAL,
+      EL_EXPANDABLE_STEELWALL_ANY,
+      EL_EXPANDABLE_STEELWALL_GROWING,
       -1
     };
 
@@ -4016,6 +4258,10 @@ static void InitGlobal()
     element_info[i].token_name = element_name_info[i].token_name;
     element_info[i].class_name = element_name_info[i].class_name;
     element_info[i].editor_description=element_name_info[i].editor_description;
+
+#if 0
+    printf("%04d: %s\n", i, element_name_info[i].token_name);
+#endif
   }
 
   global.autoplay_leveldir = NULL;
@@ -4492,11 +4738,15 @@ void InitGfx()
 
   font_height = getFontHeight(FC_RED);
 
+#if 1
+  DrawInitText(getWindowTitleString(), 20, FC_YELLOW);
+#else
   DrawInitText(getProgramInitString(), 20, FC_YELLOW);
+#endif
   DrawInitText(PROGRAM_COPYRIGHT_STRING, 50, FC_RED);
   DrawInitText(PROGRAM_WEBSITE_STRING, WIN_YSIZE - 20 - font_height, FC_RED);
 
-  DrawInitText("Loading graphics:", 120, FC_GREEN);
+  DrawInitText("Loading graphics", 120, FC_GREEN);
 }
 
 void RedrawBackground()
@@ -4511,7 +4761,6 @@ void InitGfxBackground()
 {
   int x, y;
 
-  drawto = backbuffer;
   fieldbuffer = bitmap_db_field;
   SetDrawtoField(DRAW_BACKBUFFER);
 
@@ -4826,8 +5075,7 @@ void OpenAll()
   InitJoysticks();
 
   InitVideoDisplay();
-  InitVideoBuffer(&backbuffer, &window, WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH,
-                 setup.fullscreen);
+  InitVideoBuffer(WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH, setup.fullscreen);
 
   InitEventFilter(FilterMouseMotionEvents);
 
@@ -4836,8 +5084,11 @@ void OpenAll()
 
   InitGfx();
 
+  // debug_print_timestamp(0, "INIT");
   InitLevelInfo();
+  // debug_print_timestamp(0, "TIME InitLevelInfo:        ");
   InitLevelArtworkInfo();
+  // debug_print_timestamp(0, "TIME InitLevelArtworkInfo: ");
 
   InitImages();                        /* needs to know current level directory */
   InitSound(NULL);             /* needs to know current level directory */