rnd-20040111-3-src
[rocksndiamonds.git] / src / editor.c
index 68a0680a553c6bce63ce3112d4f1f0c5d3c8f035..f098b1f5f9b025757e32804e850927f4f05251ba 100644 (file)
 #define ED_AREA_ELEM_CONTENT6_XPOS     (29 * MINI_TILEX)
 #define ED_AREA_ELEM_CONTENT6_YPOS     (ED_SETTINGS_YPOS(10) + \
                                         ED_GADGET_DISTANCE - MINI_TILEY)
+/* group element content */
+#define ED_AREA_GROUP_CONTENT_XPOS     ED_SETTINGS_XPOS(0)
+#define ED_AREA_GROUP_CONTENT_YPOS     (22 * MINI_TILEY)
 
 /* values for random placement background drawing area */
 #define ED_AREA_RANDOM_BACKGROUND_YPOS (31 * MINI_TILEY)
 #define GADGET_ID_CHANGE_CONT_RND_DOWN (GADGET_ID_COUNTER_FIRST + 57)
 #define GADGET_ID_CHANGE_CONT_RND_TEXT (GADGET_ID_COUNTER_FIRST + 58)
 #define GADGET_ID_CHANGE_CONT_RND_UP   (GADGET_ID_COUNTER_FIRST + 59)
+#define GADGET_ID_GROUP_CONTENT_DOWN   (GADGET_ID_COUNTER_FIRST + 60)
+#define GADGET_ID_GROUP_CONTENT_TEXT   (GADGET_ID_COUNTER_FIRST + 61)
+#define GADGET_ID_GROUP_CONTENT_UP     (GADGET_ID_COUNTER_FIRST + 62)
 
 /* drawing area identifiers */
-#define GADGET_ID_DRAWING_AREA_FIRST   (GADGET_ID_COUNTER_FIRST + 60)
+#define GADGET_ID_DRAWING_AREA_FIRST   (GADGET_ID_COUNTER_FIRST + 63)
 
 #define GADGET_ID_DRAWING_LEVEL                (GADGET_ID_DRAWING_AREA_FIRST + 0)
 #define GADGET_ID_ELEMENT_CONTENT_0    (GADGET_ID_DRAWING_AREA_FIRST + 1)
 #define GADGET_ID_CUSTOM_CHANGE_TARGET (GADGET_ID_DRAWING_AREA_FIRST + 12)
 #define GADGET_ID_CUSTOM_CHANGE_CONTENT        (GADGET_ID_DRAWING_AREA_FIRST + 13)
 #define GADGET_ID_CUSTOM_CHANGE_TRIGGER        (GADGET_ID_DRAWING_AREA_FIRST + 14)
-#define GADGET_ID_RANDOM_BACKGROUND    (GADGET_ID_DRAWING_AREA_FIRST + 15)
+#define GADGET_ID_GROUP_CONTENT                (GADGET_ID_DRAWING_AREA_FIRST + 15)
+#define GADGET_ID_RANDOM_BACKGROUND    (GADGET_ID_DRAWING_AREA_FIRST + 16)
 
 /* text input identifiers */
-#define GADGET_ID_TEXT_INPUT_FIRST     (GADGET_ID_DRAWING_AREA_FIRST + 16)
+#define GADGET_ID_TEXT_INPUT_FIRST     (GADGET_ID_DRAWING_AREA_FIRST + 17)
 
 #define GADGET_ID_LEVEL_NAME           (GADGET_ID_TEXT_INPUT_FIRST + 0)
 #define GADGET_ID_LEVEL_AUTHOR         (GADGET_ID_TEXT_INPUT_FIRST + 1)
 #define ED_COUNTER_ID_PUSH_DELAY_RND   14
 #define ED_COUNTER_ID_MOVE_DELAY_FIX   15
 #define ED_COUNTER_ID_MOVE_DELAY_RND   16
-#define ED_COUNTER_ID_CHANGE_DELAY_FIX 17
-#define ED_COUNTER_ID_CHANGE_DELAY_RND 18
-#define ED_COUNTER_ID_CHANGE_CONT_RND  19
+#define ED_COUNTER_ID_GROUP_CONTENT    17
+#define ED_COUNTER_ID_CHANGE_DELAY_FIX 18
+#define ED_COUNTER_ID_CHANGE_DELAY_RND 19
+#define ED_COUNTER_ID_CHANGE_CONT_RND  20
 
-#define ED_NUM_COUNTERBUTTONS          20
+#define ED_NUM_COUNTERBUTTONS          21
 
 #define ED_COUNTER_ID_LEVEL_FIRST      ED_COUNTER_ID_LEVEL_XSIZE
 #define ED_COUNTER_ID_LEVEL_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 #define ED_DRAWING_ID_CUSTOM_CHANGE_TARGET     12
 #define ED_DRAWING_ID_CUSTOM_CHANGE_CONTENT    13
 #define ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER    14
-#define ED_DRAWING_ID_RANDOM_BACKGROUND                15
+#define ED_DRAWING_ID_GROUP_CONTENT            15
+#define ED_DRAWING_ID_RANDOM_BACKGROUND                16
 
-#define ED_NUM_DRAWING_AREAS                   16
+#define ED_NUM_DRAWING_AREAS                   17
 
 
 /*
@@ -795,6 +804,7 @@ static boolean stick_element_properties_window = FALSE;
 static boolean custom_element_properties[NUM_ELEMENT_PROPERTIES];
 static boolean custom_element_change_events[NUM_CHANGE_EVENTS];
 static struct ElementChangeInfo custom_element_change;
+static struct ElementGroupInfo group_element_info;
 static struct ElementInfo custom_element;
 
 static struct
@@ -902,7 +912,7 @@ static struct
     NULL,                              " ", "height",
   },
 
-  /* ---------- element settings: configure (custom elements) ------------- */
+  /* ---------- element settings: configure (custom elements) -------------- */
 
   {
     ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(3),
@@ -953,6 +963,17 @@ static struct
     NULL,                              "+random", NULL
   },
 
+  /* ---------- element settings: configure (group elements) --------------- */
+
+  {
+    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(6),
+    MIN_ELEMENTS_IN_GROUP,             MAX_ELEMENTS_IN_GROUP,
+    GADGET_ID_GROUP_CONTENT_DOWN,      GADGET_ID_GROUP_CONTENT_UP,
+    GADGET_ID_GROUP_CONTENT_TEXT,      GADGET_ID_NONE,
+    &group_element_info.num_elements,
+    NULL,                              NULL, "number of elements in group"
+  },
+
   /* ---------- element settings: advanced (custom elements) --------------- */
 
   {
@@ -1070,8 +1091,12 @@ static struct ValueTextInfo options_move_pattern[] =
   { MV_ALONG_RIGHT_SIDE,       "along right side"              },
   { MV_TURNING_LEFT,           "turning left"                  },
   { MV_TURNING_RIGHT,          "turning right"                 },
+  { MV_TURNING_LEFT_RIGHT,     "turning left, right"           },
+  { MV_TURNING_RIGHT_LEFT,     "turning right, left"           },
+  { MV_TURNING_RANDOM,         "turning random"                },
   { MV_WHEN_PUSHED,            "when pushed"                   },
-#if 0
+  { MV_WHEN_DROPPED,           "when dropped"                  },
+#if 1
   { MV_MAZE_RUNNER,            "maze runner style"             },
   { MV_MAZE_HUNTER,            "maze hunter style"             },
 #endif
@@ -1129,6 +1154,7 @@ static struct ValueTextInfo options_deadliness[] =
 static struct ValueTextInfo options_consistency[] =
 {
   { EP_CAN_EXPLODE_3X3,                "can explode 3x3"               },
+  { EP_CAN_EXPLODE_DYNA,       "can explode 3+3"               },
   { EP_CAN_EXPLODE_1X1,                "can explode 1x1"               },
   { EP_INDESTRUCTIBLE,         "indestructible"                },
   { -1,                                NULL                            }
@@ -1150,11 +1176,11 @@ static struct ValueTextInfo options_change_direct_action[] =
   { CE_LEFT_BY_PLAYER,         "left by player ..."            },
   { CE_DROPPED_BY_PLAYER,      "dropped by player"             },
   { CE_SWITCHED,               "switched ..."                  },
-#if 0
-  { CE_COLLISION_ACTIVE,       "hitting something ..."         },
-  { CE_COLLISION_PASSIVE,      "hit by something ..."          },
+#if 1
+  { CE_HITTING_SOMETHING,      "hitting something ..."         },
+  { CE_HIT_BY_SOMETHING,       "hit by something ..."          },
 #else
-  { CE_COLLISION_ACTIVE,       "collision ..."                 },
+  { CE_HITTING_SOMETHING,      "collision ..."                 },
 #endif
   { CE_IMPACT,                 "impact (on something)"         },
   { CE_SMASHED,                        "smashed (from above)"          },
@@ -1172,9 +1198,9 @@ static struct ValueTextInfo options_change_other_action[] =
   { CE_OTHER_GETS_COLLECTED,   "player collects"               },
   { CE_OTHER_GETS_DROPPED,     "player drops"                  },
   { CE_OTHER_IS_TOUCHING,      "touching ..."                  },
-#if 0
-  { CE_OTHER_IS_COLL_ACTIVE,   "hitting ..."                   },
-  { CE_OTHER_IS_COLL_PASSIVE,  "hit by ..."                    },
+#if 1
+  { CE_OTHER_IS_HITTING,       "hitting ..."                   },
+  { CE_OTHER_GETS_HIT,         "hit by ..."                    },
 #endif
   { CE_OTHER_IS_SWITCHING,     "switch of ..."                 },
   { CE_OTHER_IS_CHANGING,      "change of"                     },
@@ -1841,6 +1867,15 @@ static struct
     NULL, NULL,                                NULL
   },
 
+  /* ---------- group element content -------------------------------------- */
+
+  {
+    ED_AREA_GROUP_CONTENT_XPOS,                ED_AREA_GROUP_CONTENT_YPOS,
+    MAX_ELEMENTS_IN_GROUP, 1,
+    GADGET_ID_GROUP_CONTENT,           GADGET_ID_NONE,
+    "content:", NULL,                  NULL
+  },
+
   /* ---------- random background (for random painting) -------------------- */
 
   {
@@ -1880,6 +1915,7 @@ static int new_element3 = EL_SAND;
 static void ModifyEditorCounter(int, int);
 static void ModifyEditorCounterLimits(int, int, int);
 static void ModifyEditorSelectbox(int, int);
+static void ModifyEditorDrawingArea(int, int, int);
 static void ModifyEditorElementList();
 static void RedrawDrawingElements();
 static void DrawDrawingWindow();
@@ -2146,7 +2182,11 @@ static int editor_el_more[] =
   EL_BD_FIREFLY,
 
   EL_MOLE_LEFT,
+#if 0
   EL_MAZE_RUNNER,
+#else
+  EL_EMPTY,
+#endif
   EL_MOLE_RIGHT,
   EL_PACMAN,
 
@@ -2895,6 +2935,87 @@ static int *editor_el_custom_more_ptr = editor_el_custom_more;
 static int num_editor_hl_custom_more = SIZEOF_ARRAY_INT(editor_hl_custom_more);
 static int num_editor_el_custom_more = SIZEOF_ARRAY_INT(editor_el_custom_more);
 
+static int editor_hl_group[] =
+{
+  EL_CHAR('G'),
+  EL_CHAR('R'),
+  EL_CHAR('O'),
+  EL_CHAR('U'),
+
+  EL_CHAR('P'),
+  EL_CHAR(' '),
+  EL_CHAR(' '),
+  EL_CHAR(' '),
+
+  EL_CHAR('E'),
+  EL_CHAR('L'),
+  EL_CHAR('E'),
+  EL_CHAR('M'),
+
+  EL_CHAR('E'),
+  EL_CHAR('N'),
+  EL_CHAR('T'),
+  EL_CHAR('S'),
+};
+
+static int editor_el_group[] =
+{
+  EL_GROUP_START + 0,
+  EL_GROUP_START + 1,
+  EL_GROUP_START + 2,
+  EL_GROUP_START + 3,
+
+  EL_GROUP_START + 4,
+  EL_GROUP_START + 5,
+  EL_GROUP_START + 6,
+  EL_GROUP_START + 7,
+
+  EL_GROUP_START + 8,
+  EL_GROUP_START + 9,
+  EL_GROUP_START + 10,
+  EL_GROUP_START + 11,
+
+  EL_GROUP_START + 12,
+  EL_GROUP_START + 13,
+  EL_GROUP_START + 14,
+  EL_GROUP_START + 15
+};
+static int *editor_hl_group_ptr = editor_hl_group;
+static int *editor_el_group_ptr = editor_el_group;
+static int num_editor_hl_group = SIZEOF_ARRAY_INT(editor_hl_group);
+static int num_editor_el_group = SIZEOF_ARRAY_INT(editor_el_group);
+
+static int editor_hl_group_more[] =
+{
+};
+
+static int editor_el_group_more[] =
+{
+  EL_GROUP_START + 16,
+  EL_GROUP_START + 17,
+  EL_GROUP_START + 18,
+  EL_GROUP_START + 19,
+
+  EL_GROUP_START + 20,
+  EL_GROUP_START + 21,
+  EL_GROUP_START + 22,
+  EL_GROUP_START + 23,
+
+  EL_GROUP_START + 24,
+  EL_GROUP_START + 25,
+  EL_GROUP_START + 26,
+  EL_GROUP_START + 27,
+
+  EL_GROUP_START + 28,
+  EL_GROUP_START + 29,
+  EL_GROUP_START + 30,
+  EL_GROUP_START + 31
+};
+static int *editor_hl_group_more_ptr = editor_hl_group_more;
+static int *editor_el_group_more_ptr = editor_el_group_more;
+static int num_editor_hl_group_more = SIZEOF_ARRAY_INT(editor_hl_group_more);
+static int num_editor_el_group_more = SIZEOF_ARRAY_INT(editor_el_group_more);
+
 static int editor_hl_user_defined[] =
 {
   EL_CHAR('U'),
@@ -2995,6 +3116,16 @@ editor_elements_info[] =
     &editor_hl_custom_more_ptr,                &num_editor_hl_custom_more,
     &editor_el_custom_more_ptr,                &num_editor_el_custom_more
   },
+  {
+    &setup.editor.el_custom,
+    &editor_hl_group_ptr,              &num_editor_hl_group,
+    &editor_el_group_ptr,              &num_editor_el_group
+  },
+  {
+    &setup.editor.el_custom_more,
+    &editor_hl_group_more_ptr,         &num_editor_hl_group_more,
+    &editor_el_group_more_ptr,         &num_editor_el_group_more
+  },
   {
     &setup.editor.el_user_defined,
     &editor_hl_user_defined_ptr,       &num_editor_hl_user_defined,
@@ -3071,8 +3202,7 @@ static void ReinitializeElementList()
   int pos = 0;
   int i, j;
 
-  if (editor_elements != NULL)
-    free(editor_elements);
+  checked_free(editor_elements);
 
   if (!initialized)
   {
@@ -3217,8 +3347,8 @@ static void DrawElementBorder(int dest_x, int dest_y, int width, int height,
     (input ? IMG_EDITOR_ELEMENT_BORDER_INPUT : IMG_EDITOR_ELEMENT_BORDER);
   Bitmap *src_bitmap;
   int src_x, src_y;
-  int num_mini_tilex = width / MINI_TILEX + 1;
-  int num_mini_tiley = width / MINI_TILEY + 1;
+  int num_mini_tilex = width  / MINI_TILEX + 1;
+  int num_mini_tiley = height / MINI_TILEY + 1;
   int x, y;
 
   getMiniGraphicSource(border_graphic, &src_bitmap, &src_x, &src_y);
@@ -3263,6 +3393,10 @@ static void DrawDrawingArea(int id)
   else if (id == ED_DRAWING_ID_CUSTOM_CHANGE_TRIGGER)
     DrawMiniGraphicExt(drawto, gi->x, gi->y,
                       el2edimg(custom_element_change.trigger_element));
+  else if (id == ED_DRAWING_ID_GROUP_CONTENT)
+    for (x = 0; x < group_element_info.num_elements; x++)
+      DrawMiniGraphicExt(drawto, gi->x + x * MINI_TILEX, gi->y,
+                        el2edimg(group_element_info.element[x]));
   else if (id >= ED_DRAWING_ID_ELEMENT_CONTENT_0 &&
           id <= ED_DRAWING_ID_ELEMENT_CONTENT_7)
   {
@@ -4955,11 +5089,13 @@ static void CopyCustomElementPropertiesToEditor(int element)
     (IS_INDESTRUCTIBLE(element) ? EP_INDESTRUCTIBLE :
      CAN_EXPLODE_1X1(element) ? EP_CAN_EXPLODE_1X1 :
      CAN_EXPLODE_3X3(element) ? EP_CAN_EXPLODE_3X3 :
+     CAN_EXPLODE_DYNA(element) ? EP_CAN_EXPLODE_DYNA :
      custom_element.consistency);
   custom_element_properties[EP_EXPLODE_RESULT] =
     (IS_INDESTRUCTIBLE(element) ||
      CAN_EXPLODE_1X1(element) ||
-     CAN_EXPLODE_3X3(element));
+     CAN_EXPLODE_3X3(element) ||
+     CAN_EXPLODE_DYNA(element));
 
   /* special case: sub-settings dependent from main setting */
   if (CAN_EXPLODE_BY_FIRE(element))
@@ -4980,8 +5116,8 @@ static void CopyCustomElementPropertiesToEditor(int element)
      HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
      HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
      HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
-     HAS_CHANGE_EVENT(element, CE_COLLISION_ACTIVE) ? CE_COLLISION_ACTIVE :
-     HAS_CHANGE_EVENT(element, CE_COLLISION_PASSIVE) ? CE_COLLISION_PASSIVE :
+     HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
+     HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
      custom_element_change.direct_action);
@@ -4997,14 +5133,19 @@ static void CopyCustomElementPropertiesToEditor(int element)
      HAS_CHANGE_EVENT(element, CE_OTHER_GETS_COLLECTED) ? CE_OTHER_GETS_COLLECTED :
      HAS_CHANGE_EVENT(element, CE_OTHER_GETS_DROPPED) ? CE_OTHER_GETS_DROPPED :
      HAS_CHANGE_EVENT(element, CE_OTHER_IS_TOUCHING) ? CE_OTHER_IS_TOUCHING :
-     HAS_CHANGE_EVENT(element, CE_OTHER_IS_COLL_ACTIVE) ? CE_OTHER_IS_COLL_ACTIVE :
-     HAS_CHANGE_EVENT(element, CE_OTHER_IS_COLL_PASSIVE) ? CE_OTHER_IS_COLL_PASSIVE :
+     HAS_CHANGE_EVENT(element, CE_OTHER_IS_HITTING) ? CE_OTHER_IS_HITTING :
+     HAS_CHANGE_EVENT(element, CE_OTHER_GETS_HIT) ? CE_OTHER_GETS_HIT :
      HAS_CHANGE_EVENT(element, CE_OTHER_IS_SWITCHING) ? CE_OTHER_IS_SWITCHING :
      HAS_CHANGE_EVENT(element, CE_OTHER_IS_CHANGING) ? CE_OTHER_IS_CHANGING :
      HAS_CHANGE_EVENT(element, CE_OTHER_IS_EXPLODING) ? CE_OTHER_IS_EXPLODING :
      custom_element_change.other_action);
 }
 
+static void CopyGroupElementPropertiesToEditor(int element)
+{
+  group_element_info = *element_info[element].group;
+}
+
 static void CopyCustomElementPropertiesToGame(int element)
 {
   int i;
@@ -5073,6 +5214,7 @@ static void CopyCustomElementPropertiesToGame(int element)
   custom_element_properties[EP_INDESTRUCTIBLE] = FALSE;
   custom_element_properties[EP_CAN_EXPLODE_1X1] = FALSE;
   custom_element_properties[EP_CAN_EXPLODE_3X3] = FALSE;
+  custom_element_properties[EP_CAN_EXPLODE_DYNA] = FALSE;
   custom_element_properties[EP_CAN_EXPLODE_BY_FIRE] = FALSE;
   custom_element_properties[EP_CAN_EXPLODE_SMASHED] = FALSE;
   custom_element_properties[EP_CAN_EXPLODE_IMPACT] = FALSE;
@@ -5080,8 +5222,9 @@ static void CopyCustomElementPropertiesToGame(int element)
     custom_element_properties[EP_EXPLODE_RESULT];
 
   /* special case: sub-settings dependent from main setting */
-  if (custom_element_properties[EP_CAN_EXPLODE_3X3] ||
-      custom_element_properties[EP_CAN_EXPLODE_1X1])
+  if (custom_element_properties[EP_CAN_EXPLODE_1X1] ||
+      custom_element_properties[EP_CAN_EXPLODE_3X3] ||
+      custom_element_properties[EP_CAN_EXPLODE_DYNA])
   {
     custom_element_properties[EP_CAN_EXPLODE_BY_FIRE] =
       custom_element.can_explode_by_fire;
@@ -5101,8 +5244,8 @@ static void CopyCustomElementPropertiesToGame(int element)
   custom_element_change_events[CE_LEFT_BY_PLAYER] = FALSE;
   custom_element_change_events[CE_DROPPED_BY_PLAYER] = FALSE;
   custom_element_change_events[CE_SWITCHED] = FALSE;
-  custom_element_change_events[CE_COLLISION_ACTIVE] = FALSE;
-  custom_element_change_events[CE_COLLISION_PASSIVE] = FALSE;
+  custom_element_change_events[CE_HITTING_SOMETHING] = FALSE;
+  custom_element_change_events[CE_HIT_BY_SOMETHING] = FALSE;
   custom_element_change_events[CE_IMPACT] = FALSE;
   custom_element_change_events[CE_SMASHED] = FALSE;
   custom_element_change_events[custom_element_change.direct_action] =
@@ -5118,8 +5261,8 @@ static void CopyCustomElementPropertiesToGame(int element)
   custom_element_change_events[CE_OTHER_GETS_COLLECTED] = FALSE;
   custom_element_change_events[CE_OTHER_GETS_DROPPED] = FALSE;
   custom_element_change_events[CE_OTHER_IS_TOUCHING] = FALSE;
-  custom_element_change_events[CE_OTHER_IS_COLL_ACTIVE] = FALSE;
-  custom_element_change_events[CE_OTHER_IS_COLL_PASSIVE] = FALSE;
+  custom_element_change_events[CE_OTHER_IS_HITTING] = FALSE;
+  custom_element_change_events[CE_OTHER_GETS_HIT] = FALSE;
   custom_element_change_events[CE_OTHER_IS_SWITCHING] = FALSE;
   custom_element_change_events[CE_OTHER_IS_CHANGING] = FALSE;
   custom_element_change_events[CE_OTHER_IS_EXPLODING] = FALSE;
@@ -5137,6 +5280,14 @@ static void CopyCustomElementPropertiesToGame(int element)
   custom_element_change = *element_info[element].change;
 }
 
+static void CopyGroupElementPropertiesToGame(int element)
+{
+  /* mark that this group element has been modified */
+  element_info[element].modified_settings = TRUE;
+
+  *element_info[element].group = group_element_info;
+}
+
 void DrawLevelEd()
 {
   CloseDoor(DOOR_CLOSE_ALL);
@@ -5328,6 +5479,14 @@ static void ModifyEditorSelectbox(int selectbox_id, int new_value)
   ModifyGadget(gi, GDI_SELECTBOX_INDEX, new_index_value, GDI_END);
 }
 
+static void ModifyEditorDrawingArea(int drawingarea_id, int xsize, int ysize)
+{
+  int gadget_id = drawingarea_info[drawingarea_id].gadget_id;
+  struct GadgetInfo *gi = level_editor_gadget[gadget_id];
+
+  ModifyGadget(gi, GDI_AREA_SIZE, xsize, ysize, GDI_END);
+}
+
 static void ModifyEditorElementList()
 {
   int i;
@@ -5494,7 +5653,7 @@ static void DrawElementContentAreas()
       DrawBackground(SX + drawingarea_info[id].x - MINI_TILEX / 2,
                     SY + drawingarea_info[id].y - MINI_TILEY / 2,
                     4 * MINI_TILEX,
-                    4 * MINI_TILEX + ED_GADGET_TEXT_DISTANCE + font_height);
+                    4 * MINI_TILEY + ED_GADGET_TEXT_DISTANCE + font_height);
     }
   }
 
@@ -5503,6 +5662,28 @@ static void DrawElementContentAreas()
   DrawText(x, y + 2 * MINI_TILEY, "smashed", FONT_TEXT_1);
 }
 
+static void DrawGroupElementArea(int element)
+{
+  int num_elements = group_element_info.num_elements;
+  int id = ED_DRAWING_ID_GROUP_CONTENT;
+  int sx = SX + drawingarea_info[id].x - MINI_TILEX / 2;
+  int sy = SY + drawingarea_info[id].y - MINI_TILEY / 2;
+  int xsize = MAX_ELEMENTS_IN_GROUP;
+  int ysize = 1;
+
+  if (drawingarea_info[id].text_left != NULL)
+    sx += getTextWidthForDrawingArea(drawingarea_info[id].text_left);
+
+  UnmapDrawingArea(id);
+
+  ModifyEditorDrawingArea(id, num_elements, 1);
+
+  /* delete content areas in case of reducing number of them */
+  DrawBackground(sx, sy, (xsize + 1) * MINI_TILEX, (ysize + 1) * MINI_TILEY);
+
+  MapDrawingArea(id);
+}
+
 static void DrawEnvelopeTextArea(int envelope_nr)
 {
   int id = ED_TEXTAREA_ID_ENVELOPE_INFO;
@@ -5529,8 +5710,7 @@ char *getElementDescriptionFilename(int element)
   static char *filename = NULL;
   char basename[MAX_FILENAME_LEN];
 
-  if (filename != NULL)
-    free(filename);
+  checked_free(filename);
 
   /* 1st try: look for element description file for exactly this element */
   sprintf(basename, "%s.txt", element_info[element].token_name);
@@ -5921,6 +6101,7 @@ static boolean checkPropertiesConfig()
 
   if (IS_GEM(properties_element) ||
       IS_CUSTOM_ELEMENT(properties_element) ||
+      IS_GROUP_ELEMENT(properties_element) ||
       IS_ENVELOPE(properties_element) ||
       HAS_CONTENT(properties_element))
     return TRUE;
@@ -6016,6 +6197,18 @@ static void DrawPropertiesConfig()
     /* draw text input gadgets */
     MapTextInputGadget(ED_TEXTINPUT_ID_ELEMENT_NAME);
   }
+
+  if (IS_GROUP_ELEMENT(properties_element))
+  {
+    /* draw stickybutton gadget */
+    i = ED_CHECKBUTTON_ID_STICK_ELEMENT;
+    checkbutton_info[i].y = ED_SETTINGS_YPOS(0);
+    MapCheckbuttonGadget(i);
+
+    MapCounterButtons(ED_COUNTER_ID_GROUP_CONTENT);
+
+    DrawGroupElementArea(properties_element);
+  }
 }
 
 static void DrawPropertiesAdvancedDrawingAreas()
@@ -6124,6 +6317,9 @@ static void DrawPropertiesWindow()
   if (IS_CUSTOM_ELEMENT(properties_element))
     CopyCustomElementPropertiesToEditor(properties_element);
 
+  if (IS_GROUP_ELEMENT(properties_element))
+    CopyGroupElementPropertiesToEditor(properties_element);
+
   UnmapLevelEditorWindowGadgets();
   UnmapLevelEditorToolboxDrawingGadgets();
   UnmapLevelEditorToolboxCustomGadgets();
@@ -6938,6 +7134,12 @@ static void HandleDrawingAreas(struct GadgetInfo *gi)
 
          CopyCustomElementPropertiesToGame(properties_element);
        }
+       else if (id == GADGET_ID_GROUP_CONTENT)
+       {
+         group_element_info.element[sx] = new_element;
+
+         CopyGroupElementPropertiesToGame(properties_element);
+       }
        else if (id == GADGET_ID_RANDOM_BACKGROUND)
          random_placement_background_element = new_element;
        else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
@@ -7109,6 +7311,11 @@ static void HandleCounterButtons(struct GadgetInfo *gi)
       DrawElementContentAreas();
       break;
 
+    case ED_COUNTER_ID_GROUP_CONTENT:
+      DrawGroupElementArea(properties_element);
+      CopyGroupElementPropertiesToGame(properties_element);
+      break;
+
     case ED_COUNTER_ID_ENVELOPE_XSIZE:
     case ED_COUNTER_ID_ENVELOPE_YSIZE:
       DrawEnvelopeTextArea(-1);
@@ -7193,7 +7400,8 @@ static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
   }
   else if (type_id == ED_TEXTBUTTON_ID_SAVE_AS_TEMPLATE)
   {
-    boolean new_template = (!LevelFileExists(-1));
+    char *template_filename = getDefaultLevelFilename(-1);
+    boolean new_template = !fileExists(template_filename);
 
     if (new_template ||
        Request("Save this template and kill the old ?", REQ_ASK))
@@ -7281,7 +7489,9 @@ static void HandleCheckbuttons(struct GadgetInfo *gi)
   }
   else if (type_id == ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE)
   {
-    if (level.use_custom_template && !LevelFileExists(-1))
+    char *template_filename = getDefaultLevelFilename(-1);
+
+    if (level.use_custom_template && !fileExists(template_filename))
     {
       Request("No level template found !", REQ_CONFIRM);
 
@@ -7564,7 +7774,8 @@ static void HandleControlButtons(struct GadgetInfo *gi)
        Request("No Level without Gregor Mc Duffin please !", REQ_CONFIRM);
       else
       {
-       boolean new_level = (!LevelFileExists(level_nr));
+       char *level_filename = getDefaultLevelFilename(level_nr);
+       boolean new_level = !fileExists(level_filename);
 
        if (new_level ||
            Request("Save this level and kill the old ?", REQ_ASK))