minor formatting change
[rocksndiamonds.git] / src / editor.c
index 3b8d0f5a3c8787fd1145e151c9e865b482121b07..282c530025ca3a893370b3080e65f4392f798d89 100644 (file)
@@ -489,6 +489,12 @@ enum
   GADGET_ID_MOVE_DELAY_RND_DOWN,
   GADGET_ID_MOVE_DELAY_RND_TEXT,
   GADGET_ID_MOVE_DELAY_RND_UP,
+  GADGET_ID_STEP_DELAY_FIX_DOWN,
+  GADGET_ID_STEP_DELAY_FIX_TEXT,
+  GADGET_ID_STEP_DELAY_FIX_UP,
+  GADGET_ID_STEP_DELAY_RND_DOWN,
+  GADGET_ID_STEP_DELAY_RND_TEXT,
+  GADGET_ID_STEP_DELAY_RND_UP,
   GADGET_ID_EXPLOSION_DELAY_DOWN,
   GADGET_ID_EXPLOSION_DELAY_TEXT,
   GADGET_ID_EXPLOSION_DELAY_UP,
@@ -559,6 +565,7 @@ enum
   // selectbox identifiers
 
   GADGET_ID_TIME_OR_STEPS,
+  GADGET_ID_TIME_SCORE_BASE,
   GADGET_ID_GAME_ENGINE_TYPE,
   GADGET_ID_LEVELSET_SAVE_MODE,
   GADGET_ID_WIND_DIRECTION,
@@ -630,6 +637,7 @@ enum
   // checkbuttons/radiobuttons for level/element properties
 
   GADGET_ID_AUTO_COUNT_GEMS,
+  GADGET_ID_RATE_TIME_OVER_SCORE,
   GADGET_ID_USE_LEVELSET_ARTWORK,
   GADGET_ID_COPY_LEVEL_TEMPLATE,
   GADGET_ID_RANDOM_PERCENTAGE,
@@ -648,6 +656,8 @@ enum
   GADGET_ID_SB_OBJECTS_NEEDED,
   GADGET_ID_AUTO_EXIT_SOKOBAN,
   GADGET_ID_SOLVED_BY_ONE_PLAYER,
+  GADGET_ID_FINISH_DIG_COLLECT,
+  GADGET_ID_KEEP_WALKABLE_CE,
   GADGET_ID_CONTINUOUS_SNAPPING,
   GADGET_ID_BLOCK_SNAP_FIELD,
   GADGET_ID_BLOCK_LAST_FIELD,
@@ -750,6 +760,8 @@ enum
   ED_COUNTER_ID_DROP_DELAY_RND,
   ED_COUNTER_ID_MOVE_DELAY_FIX,
   ED_COUNTER_ID_MOVE_DELAY_RND,
+  ED_COUNTER_ID_STEP_DELAY_FIX,
+  ED_COUNTER_ID_STEP_DELAY_RND,
   ED_COUNTER_ID_EXPLOSION_DELAY,
   ED_COUNTER_ID_IGNITION_DELAY,
   ED_COUNTER_ID_GROUP_CONTENT,
@@ -839,6 +851,7 @@ enum
 enum
 {
   ED_SELECTBOX_ID_TIME_OR_STEPS,
+  ED_SELECTBOX_ID_TIME_SCORE_BASE,
   ED_SELECTBOX_ID_GAME_ENGINE_TYPE,
   ED_SELECTBOX_ID_LEVELSET_SAVE_MODE,
   ED_SELECTBOX_ID_WIND_DIRECTION,
@@ -935,6 +948,7 @@ enum
 enum
 {
   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS,
+  ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE,
   ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK,
   ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE,
   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED,
@@ -953,6 +967,8 @@ enum
   ED_CHECKBUTTON_ID_SB_OBJECTS_NEEDED,
   ED_CHECKBUTTON_ID_AUTO_EXIT_SOKOBAN,
   ED_CHECKBUTTON_ID_SOLVED_BY_ONE_PLAYER,
+  ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT,
+  ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE,
   ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING,
   ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD,
   ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD,
@@ -1007,7 +1023,7 @@ enum
 };
 
 #define ED_CHECKBUTTON_ID_LEVEL_FIRST  ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS
-#define ED_CHECKBUTTON_ID_LEVEL_LAST   ED_CHECKBUTTON_ID_AUTO_COUNT_GEMS
+#define ED_CHECKBUTTON_ID_LEVEL_LAST   ED_CHECKBUTTON_ID_RATE_TIME_OVER_SCORE
 
 #define ED_CHECKBUTTON_ID_LEVELSET_FIRST ED_CHECKBUTTON_ID_USE_LEVELSET_ARTWORK
 #define ED_CHECKBUTTON_ID_LEVELSET_LAST         ED_CHECKBUTTON_ID_COPY_LEVEL_TEMPLATE
@@ -1408,10 +1424,10 @@ static struct
     GADGET_ID_LEVEL_TIMESCORE_DOWN,    GADGET_ID_LEVEL_TIMESCORE_UP,
     GADGET_ID_LEVEL_TIMESCORE_TEXT,    GADGET_ID_NONE,
     &level.score[SC_TIME_BONUS],
-    "score for each second/step left:",        NULL, NULL
+    "score for time or steps left:",   NULL, NULL
   },
   {
-    ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(12),
+    ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(13),
     0,                                 9999,
     GADGET_ID_LEVEL_RANDOM_SEED_DOWN,  GADGET_ID_LEVEL_RANDOM_SEED_UP,
     GADGET_ID_LEVEL_RANDOM_SEED_TEXT,  GADGET_ID_NONE,
@@ -1604,7 +1620,23 @@ static struct
     NULL,                              "+random", NULL
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(12),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(6),
+    0,                                 999,
+    GADGET_ID_STEP_DELAY_FIX_DOWN,     GADGET_ID_STEP_DELAY_FIX_UP,
+    GADGET_ID_STEP_DELAY_FIX_TEXT,     GADGET_ID_NONE,
+    &custom_element.step_delay_fixed,
+    NULL,                              "step delay", NULL
+  },
+  {
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(6),
+    0,                                 999,
+    GADGET_ID_STEP_DELAY_RND_DOWN,     GADGET_ID_STEP_DELAY_RND_UP,
+    GADGET_ID_STEP_DELAY_RND_TEXT,     GADGET_ID_STEP_DELAY_FIX_UP,
+    &custom_element.step_delay_random,
+    NULL,                              "+random", NULL
+  },
+  {
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(13),
     0,                                 999,
     GADGET_ID_EXPLOSION_DELAY_DOWN,    GADGET_ID_EXPLOSION_DELAY_UP,
     GADGET_ID_EXPLOSION_DELAY_TEXT,    GADGET_ID_NONE,
@@ -1612,7 +1644,7 @@ static struct
     NULL,                              "explosion delay", NULL
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(13),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(14),
     0,                                 999,
     GADGET_ID_IGNITION_DELAY_DOWN,     GADGET_ID_IGNITION_DELAY_UP,
     GADGET_ID_IGNITION_DELAY_TEXT,     GADGET_ID_NONE,
@@ -1731,6 +1763,14 @@ static struct ValueTextInfo options_time_or_steps[] =
   { -1,                                NULL                            }
 };
 
+static struct ValueTextInfo options_time_score_base[] =
+{
+  { 1,                         "per second/step"               },
+  { 10,                                "per 10 seconds/steps"          },
+
+  { -1,                                NULL                            }
+};
+
 static struct ValueTextInfo options_game_engine_type[] =
 {
   { GAME_ENGINE_TYPE_RND,      "Rocks'n'Diamonds"              },
@@ -2466,7 +2506,15 @@ static struct
     NULL, NULL, "(0 => no limit)",     "time or step limit"
   },
   {
-    ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(11),
+    -1,                                        ED_LEVEL_SETTINGS_YPOS(10),
+    GADGET_ID_TIME_SCORE_BASE,         GADGET_ID_LEVEL_TIMESCORE_UP,
+    -1,
+    options_time_score_base,
+    &level.time_score_base,
+    NULL, NULL, NULL,                  "time score for 1 or 10 seconds/steps"
+  },
+  {
+    ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(12),
     GADGET_ID_GAME_ENGINE_TYPE,                GADGET_ID_NONE,
     -1,
     options_game_engine_type,
@@ -2582,7 +2630,7 @@ static struct
     NULL, "            can", ":",      "leave behind or change element"
   },
   {
-    -1,                                        ED_ELEMENT_SETTINGS_YPOS(7),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(8),
     GADGET_ID_CUSTOM_SMASH_TARGETS,    GADGET_ID_CUSTOM_CAN_SMASH,
     -1,
     options_smash_targets,
@@ -2590,7 +2638,7 @@ static struct
     NULL, "can smash", NULL,           "elements that can be smashed"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(8),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(9),
     GADGET_ID_CUSTOM_SLIPPERY_TYPE,    GADGET_ID_NONE,
     -1,
     options_slippery_type,
@@ -2598,7 +2646,7 @@ static struct
     NULL, "slippery", NULL,            "where other elements fall down"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(9),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(10),
     GADGET_ID_CUSTOM_DEADLINESS,       GADGET_ID_NONE,
     -1,
     options_deadliness,
@@ -2606,7 +2654,7 @@ static struct
     NULL, "deadly when", NULL,         "deadliness of element"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(10),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(11),
     GADGET_ID_CUSTOM_EXPLOSION_TYPE,   GADGET_ID_NONE,
     -1,
     options_explosion_type,
@@ -2981,6 +3029,13 @@ static struct
     NULL, NULL,
     "automatically count gems needed", "set counter to number of gems"
   },
+  {
+    ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(11),
+    GADGET_ID_RATE_TIME_OVER_SCORE,    GADGET_ID_NONE,
+    &level.rate_time_over_score,
+    NULL, NULL,
+    "rate time/steps used over score", "sort high scores by playing time/steps"
+  },
   {
     ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(7),
     GADGET_ID_USE_LEVELSET_ARTWORK,    GADGET_ID_NONE,
@@ -3110,6 +3165,20 @@ static struct
     NULL, NULL,
     "only one player must enter exit", "level solved by first player in exit"
   },
+  {
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(3),
+    GADGET_ID_FINISH_DIG_COLLECT,      GADGET_ID_NONE,
+    &level.finish_dig_collect,
+    NULL, NULL,
+    "CE action on finished dig/collect", "only finished dig/collect triggers CE"
+  },
+  {
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(4),
+    GADGET_ID_KEEP_WALKABLE_CE,                GADGET_ID_NONE,
+    &level.keep_walkable_ce,
+    NULL, NULL,
+    "keep walkable CE changed to player", "keep CE changing to player if walkable"
+  },
   {
     ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(9),
     GADGET_ID_CONTINUOUS_SNAPPING,     GADGET_ID_NONE,
@@ -3341,56 +3410,56 @@ static struct
     NULL,                              "element can move with some pattern"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(7),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(8),
     GADGET_ID_CUSTOM_CAN_FALL,         GADGET_ID_NONE,
     &custom_element_properties[EP_CAN_FALL],
     NULL, NULL,
     "can fall",                                "element can fall down"
   },
   {
-    -1,                                        ED_ELEMENT_SETTINGS_YPOS(7),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(8),
     GADGET_ID_CUSTOM_CAN_SMASH,                GADGET_ID_CUSTOM_CAN_FALL,
     &custom_element_properties[EP_CAN_SMASH],
     NULL, " ",
     NULL,                              "element can smash other elements"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(8),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(9),
     GADGET_ID_CUSTOM_SLIPPERY,         GADGET_ID_NONE,
     &custom_element_properties[EP_SLIPPERY],
     NULL, NULL,
     NULL,                              "other elements can fall down from it"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(9),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(10),
     GADGET_ID_CUSTOM_DEADLY,           GADGET_ID_NONE,
     &custom_element_properties[EP_DEADLY],
     NULL, NULL,
     NULL,                              "element can kill the player"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(10),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(11),
     GADGET_ID_CUSTOM_CAN_EXPLODE,      GADGET_ID_NONE,
     &custom_element_properties[EP_CAN_EXPLODE],
     NULL, NULL,
     NULL,                              "element can explode"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(11),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(12),
     GADGET_ID_CUSTOM_EXPLODE_FIRE,     GADGET_ID_NONE,
     &custom_element_properties[EP_EXPLODES_BY_FIRE],
     NULL, NULL,
     "by fire",                         "element can explode by fire/explosion"
   },
   {
-    -1,                                        ED_ELEMENT_SETTINGS_YPOS(11),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(12),
     GADGET_ID_CUSTOM_EXPLODE_SMASH,    GADGET_ID_CUSTOM_EXPLODE_FIRE,
     &custom_element_properties[EP_EXPLODES_SMASHED],
     NULL, " ",
     "smashed",                         "element can explode when smashed"
   },
   {
-    -1,                                        ED_ELEMENT_SETTINGS_YPOS(11),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(12),
     GADGET_ID_CUSTOM_EXPLODE_IMPACT,   GADGET_ID_CUSTOM_EXPLODE_SMASH,
     &custom_element_properties[EP_EXPLODES_IMPACT],
     NULL, " ",
@@ -3681,7 +3750,7 @@ static struct
   // ---------- custom content (when exploding) -------------------------------
 
   {
-    -1,                                        ED_AREA_3X3_SETTINGS_YPOS(10),
+    -1,                                        ED_AREA_3X3_SETTINGS_YPOS(11),
     0,                                 ED_AREA_3X3_SETTINGS_YOFF,
     GADGET_ID_CUSTOM_CONTENT,          GADGET_ID_NONE, // align three rows
     &custom_element.content.e[0][0],   3, 3,
@@ -3856,7 +3925,7 @@ static int last_drawing_function = GADGET_ID_SINGLE_ITEMS;
 static boolean draw_with_brush = FALSE;
 static int properties_element = 0;
 
-static short FieldBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
+static short TileBackup[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 static short UndoBuffer[NUM_UNDO_STEPS][MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 static short IntelliDrawBuffer[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 static int undo_buffer_position = 0;
@@ -5556,8 +5625,8 @@ static void InitDynamicEditorElementList(int **elements, int *num_elements)
   // find all elements used in current level
   for (y = 0; y < lev_fieldy; y++)
     for (x = 0; x < lev_fieldx; x++)
-      if (Feld[x][y] < NUM_FILE_ELEMENTS)      // should always be true
-       element_found[Feld[x][y]] = TRUE;
+      if (Tile[x][y] < NUM_FILE_ELEMENTS)      // should always be true
+       element_found[Tile[x][y]] = TRUE;
 
   *num_elements = 0;
 
@@ -5749,10 +5818,10 @@ static void ReinitializeElementList(void)
       int element = (*editor_elements_info[i].element_list)[j];
 
       if (element >= NUM_FILE_ELEMENTS)
-       Error(ERR_WARN, "editor element %d is runtime element", element);
+       Warn("editor element %d is runtime element", element);
 
       if (strEqual(getElementInfoText(element), INFOTEXT_UNKNOWN_ELEMENT))
-       Error(ERR_WARN, "no element description text for element %d", element);
+       Warn("no element description text for element %d", element);
     }
   }
 
@@ -6218,7 +6287,7 @@ static void CreateControlButtons(void)
                      GDI_END);
 
     if (gi == NULL)
-      Error(ERR_EXIT, "cannot create gadget");
+      Fail("cannot create gadget");
 
     level_editor_gadget[id] = gi;
   }
@@ -6284,7 +6353,7 @@ static void CreateControlButtons(void)
                      GDI_END);
 
     if (gi == NULL)
-      Error(ERR_EXIT, "cannot create gadget");
+      Fail("cannot create gadget");
 
     level_editor_gadget[id] = gi;
   }
@@ -6337,7 +6406,7 @@ static void CreateControlButtons(void)
                      GDI_END);
 
     if (gi == NULL)
-      Error(ERR_EXIT, "cannot create gadget");
+      Fail("cannot create gadget");
 
     level_editor_gadget[id] = gi;
   }
@@ -6431,7 +6500,7 @@ static void CreateCounterButtons(void)
                        GDI_END);
 
       if (gi == NULL)
-       Error(ERR_EXIT, "cannot create gadget");
+       Fail("cannot create gadget");
 
       level_editor_gadget[id] = gi;
       right_gadget_border[id] =
@@ -6493,7 +6562,7 @@ static void CreateCounterButtons(void)
                          GDI_END);
 
        if (gi == NULL)
-         Error(ERR_EXIT, "cannot create gadget");
+         Fail("cannot create gadget");
 
        level_editor_gadget[id] = gi;
        right_gadget_border[id] =
@@ -6551,7 +6620,7 @@ static void CreateDrawingAreas(void)
                      GDI_END);
 
     if (gi == NULL)
-      Error(ERR_EXIT, "cannot create gadget");
+      Fail("cannot create gadget");
 
     level_editor_gadget[id] = gi;
     right_gadget_border[id] =
@@ -6624,7 +6693,7 @@ static void CreateTextInputGadgets(void)
                      GDI_END);
 
     if (gi == NULL)
-      Error(ERR_EXIT, "cannot create gadget");
+      Fail("cannot create gadget");
 
     level_editor_gadget[id] = gi;
   }
@@ -6673,7 +6742,7 @@ static void CreateTextAreaGadgets(void)
                      GDI_END);
 
     if (gi == NULL)
-      Error(ERR_EXIT, "cannot create gadget");
+      Fail("cannot create gadget");
 
     level_editor_gadget[id] = gi;
   }
@@ -6752,7 +6821,7 @@ static void CreateSelectboxGadgets(void)
                      GDI_END);
 
     if (gi == NULL)
-      Error(ERR_EXIT, "cannot create gadget");
+      Fail("cannot create gadget");
 
     level_editor_gadget[id] = gi;
     right_gadget_border[id] =
@@ -6836,7 +6905,7 @@ static void CreateTextbuttonGadgets(void)
                      GDI_END);
 
     if (gi == NULL)
-      Error(ERR_EXIT, "cannot create gadget");
+      Fail("cannot create gadget");
 
     level_editor_gadget[id] = gi;
     right_gadget_border[id] =
@@ -6892,7 +6961,7 @@ static void CreateGraphicbuttonGadgets(void)
                      GDI_END);
 
     if (gi == NULL)
-      Error(ERR_EXIT, "cannot create gadget");
+      Fail("cannot create gadget");
 
     level_editor_gadget[id] = gi;
     right_gadget_border[id] =
@@ -7007,7 +7076,7 @@ static void CreateScrollbarGadgets(void)
                      GDI_END);
 
     if (gi == NULL)
-      Error(ERR_EXIT, "cannot create gadget");
+      Fail("cannot create gadget");
 
     level_editor_gadget[id] = gi;
   }
@@ -7067,7 +7136,7 @@ static void CreateCheckbuttonGadgets(void)
                      GDI_END);
 
     if (gi == NULL)
-      Error(ERR_EXIT, "cannot create gadget");
+      Fail("cannot create gadget");
 
     level_editor_gadget[id] = gi;
     right_gadget_border[id] =
@@ -7132,7 +7201,7 @@ static void CreateRadiobuttonGadgets(void)
                      GDI_END);
 
     if (gi == NULL)
-      Error(ERR_EXIT, "cannot create gadget");
+      Fail("cannot create gadget");
 
     level_editor_gadget[id] = gi;
     right_gadget_border[id] =
@@ -7151,7 +7220,7 @@ void CreateLevelEditorGadgets(void)
 
   num_editor_gadgets = NUM_EDITOR_GADGETS;
 
-  // printf("::: allocating %d gadgets ...\n", num_editor_gadgets);
+  // Debug("editor", "allocating %d gadgets ...\n", num_editor_gadgets);
 
   level_editor_gadget =
     checked_calloc(num_editor_gadgets * sizeof(struct GadgetInfo *));
@@ -7189,7 +7258,7 @@ void FreeLevelEditorGadgets(void)
 {
   int i;
 
-  // printf("::: freeing %d gadgets ...\n", num_editor_gadgets);
+  // Debug("editor", "freeing %d gadgets ...\n", num_editor_gadgets);
 
   for (i = 0; i < num_editor_gadgets; i++)
   {
@@ -7694,7 +7763,7 @@ static boolean LevelChanged(void)
 
   for (y = 0; y < lev_fieldy; y++) 
     for (x = 0; x < lev_fieldx; x++)
-      if (Feld[x][y] != level.field[x][y])
+      if (Tile[x][y] != level.field[x][y])
        field_changed = TRUE;
 
   return (level.changed || field_changed);
@@ -7722,7 +7791,7 @@ static boolean PrepareSavingIntoPersonalLevelSet(void)
     return TRUE;
   }
 
-  if (!Request("This level is read only! "
+  if (!Request("This level is read-only! "
               "Save into personal level set?", REQ_ASK))
     return FALSE;
 
@@ -7959,8 +8028,8 @@ static void replace_custom_element_in_playfield(int element_from,
 
   for (x = 0; x < lev_fieldx; x++)
     for (y = 0; y < lev_fieldy; y++)
-      if (Feld[x][y] == element_from)
-       Feld[x][y] = element_to;
+      if (Tile[x][y] == element_from)
+       Tile[x][y] = element_to;
 }
 
 static boolean CopyCustomElement(int element_old, int element_new,
@@ -8196,7 +8265,7 @@ static void CopyGroupElementPropertiesToEditor(int element)
 
 static void CopyClassicElementPropertiesToEditor(int element)
 {
-  if (ELEM_IS_PLAYER(element) || COULD_MOVE_INTO_ACID(element))
+  if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
     custom_element_properties[EP_CAN_MOVE_INTO_ACID] =
       getMoveIntoAcidProperty(&level, element);
 
@@ -8382,7 +8451,7 @@ static void CopyGroupElementPropertiesToGame(int element)
 
 static void CopyClassicElementPropertiesToGame(int element)
 {
-  if (ELEM_IS_PLAYER(element) || COULD_MOVE_INTO_ACID(element))
+  if (IS_PLAYER_ELEMENT(element) || COULD_MOVE_INTO_ACID(element))
     setMoveIntoAcidProperty(&level, element,
                            custom_element_properties[EP_CAN_MOVE_INTO_ACID]);
 
@@ -8408,8 +8477,7 @@ static void CheckElementDescriptions(void)
 
   for (i = 0; i < NUM_FILE_ELEMENTS; i++)
     if (getElementDescriptionFilename(i) == NULL && !IS_OBSOLETE(i))
-      Error(ERR_WARN, "no element description file for element '%s'",
-           EL_NAME(i));
+      Warn("no element description file for element '%s'", EL_NAME(i));
 }
 #endif
 
@@ -8609,8 +8677,8 @@ void DrawLevelEd(void)
 
   if (level_editor_test_game)
   {
-    CopyPlayfield(level.field, Feld);
-    CopyPlayfield(FieldBackup, level.field);
+    CopyPlayfield(level.field, Tile);
+    CopyPlayfield(TileBackup, level.field);
 
     level_editor_test_game = FALSE;
   }
@@ -9053,7 +9121,7 @@ static void DrawPropertiesTabulatorGadgets(void)
   int i;
 
   // draw two config tabulators for player elements
-  if (ELEM_IS_PLAYER(properties_element))
+  if (IS_PLAYER_ELEMENT(properties_element))
     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG_2;
 
   // draw two config and one "change" tabulator for custom elements
@@ -9068,7 +9136,7 @@ static void DrawPropertiesTabulatorGadgets(void)
 
     // use "config 1" and "config 2" instead of "config" for players and CEs
     if (i == ED_TEXTBUTTON_ID_PROPERTIES_CONFIG &&
-       (ELEM_IS_PLAYER(properties_element) ||
+       (IS_PLAYER_ELEMENT(properties_element) ||
         IS_CUSTOM_ELEMENT(properties_element)))
       continue;
 
@@ -9555,7 +9623,7 @@ static void DrawPropertiesInfo(void)
   num_elements_in_level = 0;
   for (y = 0; y < lev_fieldy; y++) 
     for (x = 0; x < lev_fieldx; x++)
-      if (Feld[x][y] == properties_element)
+      if (Tile[x][y] == properties_element)
        num_elements_in_level++;
   percentage = num_elements_in_level * 100.0 / (lev_fieldx * lev_fieldy);
 
@@ -9765,7 +9833,7 @@ static boolean checkPropertiesConfig(int element)
       IS_ENVELOPE(element) ||
       IS_MM_MCDUFFIN(element) ||
       IS_DF_LASER(element) ||
-      ELEM_IS_PLAYER(element) ||
+      IS_PLAYER_ELEMENT(element) ||
       HAS_EDITOR_CONTENT(element) ||
       CAN_GROW(element) ||
       COULD_MOVE_INTO_ACID(element) ||
@@ -9795,7 +9863,7 @@ static void SetAutomaticNumberOfGemsNeeded(void)
   {
     for (y = 0; y < lev_fieldy; y++)
     {
-      int element = Feld[x][y];
+      int element = Tile[x][y];
 
       switch (element)
       {
@@ -9922,7 +9990,7 @@ static void DrawPropertiesConfig(void)
       DrawAndroidElementArea(properties_element);
   }
 
-  if (ELEM_IS_PLAYER(properties_element))
+  if (IS_PLAYER_ELEMENT(properties_element))
   {
     int player_nr = GET_PLAYER_NR(properties_element);
 
@@ -9984,6 +10052,8 @@ static void DrawPropertiesConfig(void)
 
       // draw checkbutton gadgets
       MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_INITIAL_INVENTORY);
+      MapCheckbuttonGadget(ED_CHECKBUTTON_ID_FINISH_DIG_COLLECT);
+      MapCheckbuttonGadget(ED_CHECKBUTTON_ID_KEEP_WALKABLE_CE);
 
       // draw counter gadgets
       MapCounterButtons(ED_COUNTER_ID_INVENTORY_SIZE);
@@ -10000,7 +10070,7 @@ static void DrawPropertiesConfig(void)
     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_EM_EXPLODES_BY_FIRE);
 
   if (COULD_MOVE_INTO_ACID(properties_element) &&
-      !ELEM_IS_PLAYER(properties_element) &&
+      !IS_PLAYER_ELEMENT(properties_element) &&
       (!IS_CUSTOM_ELEMENT(properties_element) ||
        edit_mode_properties == ED_MODE_PROPERTIES_CONFIG_2))
   {
@@ -10008,7 +10078,7 @@ static void DrawPropertiesConfig(void)
     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
       ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
-      ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 6 :
+      ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 7 :
                               IS_BALLOON_ELEMENT(properties_element) ||
                               HAS_EDITOR_CONTENT(properties_element) ? 1 : 0);
 
@@ -10338,12 +10408,12 @@ static void DrawPropertiesWindow(void)
     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_2;
 
   if (edit_mode_properties > ED_MODE_PROPERTIES_CONFIG &&
-      !ELEM_IS_PLAYER(properties_element) &&
+      !IS_PLAYER_ELEMENT(properties_element) &&
       !IS_CUSTOM_ELEMENT(properties_element))
     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
 
   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
-      (ELEM_IS_PLAYER(properties_element) ||
+      (IS_PLAYER_ELEMENT(properties_element) ||
        IS_CUSTOM_ELEMENT(properties_element)))
     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG_1;
 
@@ -10849,7 +10919,7 @@ static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
 {
   int sx = x - level_xpos;
   int sy = y - level_ypos;
-  int old_element = Feld[x][y];
+  int old_element = Tile[x][y];
   int new_element = element;
   unsigned int new_bitmask = (getDrawModeHiRes() ? (dx + 1) << (dy * 2) : 0x0f);
   boolean draw_masked = FALSE;
@@ -10875,7 +10945,7 @@ static void SetElementSimpleExt(int x, int y, int dx, int dy, int element,
   IntelliDrawBuffer[x][y] = element;
 
   if (change_level)
-    Feld[x][y] = element;
+    Tile[x][y] = element;
 
   if (IN_ED_FIELD(sx, sy))
   {
@@ -11701,7 +11771,7 @@ static void ResetIntelliDraw(void)
 
   for (x = 0; x < lev_fieldx; x++)
     for (y = 0; y < lev_fieldy; y++)
-      IntelliDrawBuffer[x][y] = Feld[x][y];
+      IntelliDrawBuffer[x][y] = Tile[x][y];
 
   SetElementIntelliDraw(-1, -1, EL_UNDEFINED, FALSE, -1);
 }
@@ -11744,7 +11814,7 @@ static void SetElementExt(int x, int y, int dx, int dy, int element,
                          boolean change_level, int button)
 {
   if (element < 0)
-    SetElementSimple(x, y, Feld[x][y], change_level);
+    SetElementSimple(x, y, Tile[x][y], change_level);
   else if (GetKeyModState() & KMOD_Shift && !IS_MM_WALL_EDITOR(element))
     SetElementIntelliDraw(x, y, element, change_level, button);
   else
@@ -11788,7 +11858,7 @@ static int getLevelElementHiRes(int lx2, int ly2)
   int ly = ly2 / 2;
   int dx = lx2 % 2;
   int dy = ly2 % 2;
-  int element = Feld[lx][ly];
+  int element = Tile[lx][ly];
   unsigned int bitmask = (dx + 1) << (dy * 2);
 
   if (IS_MM_WALL(element))
@@ -12044,14 +12114,14 @@ static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
 
     for (y = 0; y < height; y++)
       for (x = 0; x < width; x++)
-       if ((draw_with_brush ? brush_buffer[x][y] : Feld[x][y]) > 999)
+       if ((draw_with_brush ? brush_buffer[x][y] : Tile[x][y]) > 999)
          format = "%s%04d";
 
     for (y = 0; y < height; y++)
     {
       for (x = 0; x < width; x++)
       {
-       int element = (draw_with_brush ? brush_buffer[x][y] : Feld[x][y]);
+       int element = (draw_with_brush ? brush_buffer[x][y] : Tile[x][y]);
        char *prefix = (mode == CB_DUMP_BRUSH ||
                        mode == CB_BRUSH_TO_CLIPBOARD ? "`" : "ΒΈ");
 
@@ -12072,7 +12142,7 @@ static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
        mode == CB_BRUSH_TO_CLIPBOARD_SMALL)
       SDL_SetClipboardText(text);
     else
-      printf("%s", text);
+      Print("%s", text);       // print brush data to console and log file
 
     return;
   }
@@ -12163,6 +12233,9 @@ static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
          ptr++;
        }
 
+       // remap some (historic, now obsolete) elements
+       element = getMappedElement(element);
+
        if (element >= NUM_FILE_ELEMENTS)
          element = EL_UNKNOWN;
 
@@ -12233,11 +12306,41 @@ static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
 
       for (x = 0; x < MAX_LEV_FIELDX; x++)
        for (y = 0; y < MAX_LEV_FIELDY; y++)
-         Feld[x][y] = brush_buffer[x][y];
+         Tile[x][y] = brush_buffer[x][y];
 
       lev_fieldx = level.fieldx = brush_width;
       lev_fieldy = level.fieldy = brush_height;
 
+      boolean use_em_engine = TRUE;
+      boolean use_sp_engine = TRUE;
+      boolean use_mm_engine = TRUE;
+
+      for (x = 0; x < MAX_LEV_FIELDX; x++)
+      {
+       for (y = 0; y < MAX_LEV_FIELDY; y++)
+       {
+         int element = Tile[x][y];
+
+         if (!IS_EM_ELEMENT(element) && !IS_PLAYER_ELEMENT(element))
+           use_em_engine = FALSE;
+
+         if (!IS_SP_ELEMENT(element))
+           use_sp_engine = FALSE;
+
+         if (!IS_MM_ELEMENT(element) && element != EL_EMPTY)
+           use_mm_engine = FALSE;
+       }
+      }
+
+      level.game_engine_type = (use_em_engine ? GAME_ENGINE_TYPE_EM :
+                               use_sp_engine ? GAME_ENGINE_TYPE_SP :
+                               use_mm_engine ? GAME_ENGINE_TYPE_MM :
+                               GAME_ENGINE_TYPE_RND);
+
+      // update element selection list
+      ReinitializeElementList();
+      ModifyEditorElementList();
+
       SetBorderElement();
 
       DrawEditModeWindow();
@@ -12270,7 +12373,7 @@ static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
     {
       for (x = 0; x < brush_width; x++)
       {
-       brush_buffer[x][y] = Feld[from_lx + x][from_ly + y];
+       brush_buffer[x][y] = Tile[from_lx + x][from_ly + y];
 
        if (button != 1)
          DrawBrushElement(from_x + x, from_y + y, new_element, TRUE);
@@ -12411,7 +12514,7 @@ void RedoLevelEditorOperation(void)
 
 static void FloodFill(int from_x, int from_y, int fill_element)
 {
-  FloodFillLevel(from_x, from_y, fill_element, Feld, lev_fieldx, lev_fieldy);
+  FloodFillLevel(from_x, from_y, fill_element, Tile, lev_fieldx, lev_fieldy);
 }
 
 static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
@@ -12420,20 +12523,20 @@ static void FloodFillWall_MM(int from_sx2, int from_sy2, int fill_element)
   int from_y = from_sy2 + 2 * level_ypos;
   int max_fillx = lev_fieldx * 2;
   int max_filly = lev_fieldy * 2;
-  short FillFeld[max_fillx][max_filly];
+  short Fill[max_fillx][max_filly];
   int x, y;
 
   for (x = 0; x < max_fillx; x++)
     for (y = 0; y < max_filly; y++)
-      FillFeld[x][y] = getLevelElementHiRes(x, y);
+      Fill[x][y] = getLevelElementHiRes(x, y);
 
   FloodFillLevelExt(from_x, from_y, fill_element, max_fillx, max_filly,
-                   FillFeld, max_fillx, max_filly);
+                   Fill, max_fillx, max_filly);
 
   for (x = 0; x < max_fillx; x++)
     for (y = 0; y < max_filly; y++)
-      if (FillFeld[x][y] == fill_element)
-       SetLevelElementHiRes(x, y, FillFeld[x][y]);
+      if (Fill[x][y] == fill_element)
+       SetLevelElementHiRes(x, y, Fill[x][y]);
 }
 
 // values for DrawLevelText() modes
@@ -12497,7 +12600,7 @@ static int DrawLevelText(int sx, int sy, char letter, int mode)
       break;
 
     case TEXT_SETCURSOR:
-      DrawEditorElement(last_sx, last_sy, Feld[lx][ly]);
+      DrawEditorElement(last_sx, last_sy, Tile[lx][ly]);
       DrawAreaBorder(sx, sy, sx, sy);
       StartTextInput(SX + sx * ed_tilesize, SY + sy * ed_tilesize,
                     ed_tilesize, ed_tilesize);
@@ -12512,8 +12615,8 @@ static int DrawLevelText(int sx, int sy, char letter, int mode)
            new_element1 <= EL_STEEL_CHAR_END)
          letter_element = letter_element - EL_CHAR_START + EL_STEEL_CHAR_START;
 
-       delete_buffer[sx - start_sx] = Feld[lx][ly];
-       Feld[lx][ly] = letter_element;
+       delete_buffer[sx - start_sx] = Tile[lx][ly];
+       Tile[lx][ly] = letter_element;
 
        if (sx + 1 < ed_fieldx && lx + 1 < lev_fieldx)
          DrawLevelText(sx + 1, sy, 0, TEXT_SETCURSOR);
@@ -12529,8 +12632,8 @@ static int DrawLevelText(int sx, int sy, char letter, int mode)
     case TEXT_BACKSPACE:
       if (sx > start_sx)
       {
-       Feld[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
-       DrawEditorElement(sx - 1, sy, Feld[lx - 1][ly]);
+       Tile[lx - 1][ly] = delete_buffer[sx - start_sx - 1];
+       DrawEditorElement(sx - 1, sy, Tile[lx - 1][ly]);
        DrawLevelText(sx - 1, sy, 0, TEXT_SETCURSOR);
       }
       break;
@@ -12544,7 +12647,7 @@ static int DrawLevelText(int sx, int sy, char letter, int mode)
 
     case TEXT_END:
       CopyLevelToUndoBuffer(UNDO_IMMEDIATE);
-      DrawEditorElement(sx, sy, Feld[lx][ly]);
+      DrawEditorElement(sx, sy, Tile[lx][ly]);
       StopTextInput();
       typing = FALSE;
       break;
@@ -12566,7 +12669,7 @@ static void SetTextCursor(int unused_sx, int unused_sy, int sx, int sy,
   int ly = sy + level_ypos;
 
   if (element == -1)
-    DrawEditorElement(sx, sy, Feld[lx][ly]);
+    DrawEditorElement(sx, sy, Tile[lx][ly]);
   else
     DrawAreaBorder(sx, sy, sx, sy);
 }
@@ -12620,7 +12723,7 @@ static void CopyLevelToUndoBuffer(int mode)
 
   for (x = 0; x < lev_fieldx; x++)
     for (y = 0; y < lev_fieldy; y++)
-      UndoBuffer[undo_buffer_position][x][y] = Feld[x][y];
+      UndoBuffer[undo_buffer_position][x][y] = Tile[x][y];
 
   // check if drawing operation forces change of border style
   CheckLevelBorderElement(TRUE);
@@ -12642,8 +12745,8 @@ static void RandomPlacement(int new_element)
   {
     free_position[x][y] =
       (random_placement_background_restricted ?
-       Feld[x][y] == random_placement_background_element :
-       Feld[x][y] != new_element);
+       Tile[x][y] == random_placement_background_element :
+       Tile[x][y] != new_element);
 
     if (free_position[x][y])
       num_free_positions++;
@@ -12691,17 +12794,54 @@ static void WrapLevel(int dx, int dy)
 
   for (x = 0; x < lev_fieldx; x++)
     for (y = 0; y < lev_fieldy; y++)
-      FieldBackup[x][y] = Feld[x][y];
+      TileBackup[x][y] = Tile[x][y];
 
   for (x = 0; x < lev_fieldx; x++)
     for (y = 0; y < lev_fieldy; y++)
-      Feld[x][y] =
-       FieldBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
+      Tile[x][y] =
+       TileBackup[(x + wrap_dx) % lev_fieldx][(y + wrap_dy) % lev_fieldy];
 
   DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
   CopyLevelToUndoBuffer(UNDO_ACCUMULATE);
 }
 
+static void DrawAreaElementHighlight(boolean highlighted)
+{
+  DrawEditorLevel(ed_fieldx, ed_fieldy, level_xpos, level_ypos);
+
+  if (!highlighted)
+    return;
+
+  int x, y;
+
+  for (x = 0; x < ed_fieldx; x++)
+  {
+    for (y = 0; y < ed_fieldy; y++)
+    {
+      int lx = x + level_xpos;
+      int ly = y + level_ypos;
+
+      if (!IN_LEV_FIELD(lx, ly))
+       continue;
+
+      if (Tile[lx][ly] != new_element1)
+       continue;
+
+      int sx = SX + x * ed_tilesize;
+      int sy = SY + y * ed_tilesize;
+      int from_sx = sx;
+      int from_sy = sy;
+      int to_sx = sx + ed_tilesize - 1;
+      int to_sy = sy + ed_tilesize - 1;
+
+      DrawSimpleWhiteLine(drawto, from_sx, from_sy, to_sx,   from_sy);
+      DrawSimpleWhiteLine(drawto, to_sx,   from_sy, to_sx,   to_sy);
+      DrawSimpleWhiteLine(drawto, to_sx,   to_sy,   from_sx, to_sy);
+      DrawSimpleWhiteLine(drawto, from_sx, to_sy,   from_sx, from_sy);
+    }
+  }
+}
+
 static void CopyLevelTemplateToUserLevelSet(char *levelset_subdir)
 {
   char *template_filename_old = getLocalLevelTemplateFilename();
@@ -12788,7 +12928,7 @@ static void HandleDrawingAreas(struct GadgetInfo *gi)
   }
   else if (!button_press_event)
   {
-    int old_element = (IN_LEV_FIELD(lx, ly) ? Feld[lx][ly] : EL_UNDEFINED);
+    int old_element = (IN_LEV_FIELD(lx, ly) ? Tile[lx][ly] : EL_UNDEFINED);
     boolean hires_drawing = (level.game_engine_type == GAME_ENGINE_TYPE_MM &&
                             isHiresTileElement(old_element) &&
                             isHiresDrawElement(new_element));
@@ -12864,16 +13004,16 @@ static void HandleDrawingAreas(struct GadgetInfo *gi)
        {
          SetDrawModeHiRes(new_element);
 
-         if (ELEM_IS_PLAYER(new_element))
+         if (IS_PLAYER_ELEMENT(new_element))
          {
            // remove player at old position
            for (y = 0; y < lev_fieldy; y++)
            {
              for (x = 0; x < lev_fieldx; x++)
              {
-               int old_element = Feld[x][y];
+               int old_element = Tile[x][y];
 
-               if (ELEM_IS_PLAYER(old_element))
+               if (IS_PLAYER_ELEMENT(old_element))
                {
                  int replaced_with_element =
                    (old_element == EL_SOKOBAN_FIELD_PLAYER &&
@@ -13030,7 +13170,7 @@ static void HandleDrawingAreas(struct GadgetInfo *gi)
       break;
 
     case GADGET_ID_FLOOD_FILL:
-      if (button_press_event && Feld[lx][ly] != new_element)
+      if (button_press_event && Tile[lx][ly] != new_element)
       {
        if (IS_MM_WALL_EDITOR(new_element))
          FloodFillWall_MM(sx2, sy2, new_element);
@@ -13047,7 +13187,7 @@ static void HandleDrawingAreas(struct GadgetInfo *gi)
        ClickOnGadget(level_editor_gadget[last_drawing_function],
                      MB_LEFTBUTTON);
       else if (draw_level)
-       PickDrawingElement(button, Feld[lx][ly]);
+       PickDrawingElement(button, Tile[lx][ly]);
       else
       {
        int pos = sx * drawingarea_info[type_id].area_ysize + sy;
@@ -13291,10 +13431,10 @@ static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
     boolean new_template = !fileExists(getLocalLevelTemplateFilename());
 
     // backup original "level.field" (needed to track playfield changes)
-    CopyPlayfield(level.field, FieldBackup);
+    CopyPlayfield(level.field, TileBackup);
 
     // "SaveLevelTemplate()" uses "level.field", so copy editor playfield
-    CopyPlayfield(Feld, level.field);
+    CopyPlayfield(Tile, level.field);
 
     if (new_template ||
        Request("Save this template and kill the old?", REQ_ASK))
@@ -13304,7 +13444,7 @@ static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
       Request("Template saved!", REQ_CONFIRM);
 
     // restore original "level.field" (needed to track playfield changes)
-    CopyPlayfield(FieldBackup, level.field);
+    CopyPlayfield(TileBackup, level.field);
   }
   else if (type_id == ED_TEXTBUTTON_ID_SAVE_LEVELSET)
   {
@@ -13313,7 +13453,7 @@ static void HandleTextbuttonGadgets(struct GadgetInfo *gi)
     if (levelset_save_mode == LEVELSET_SAVE_MODE_UPDATE &&
        leveldir_current->readonly)
     {
-      Request("This level set is read only!", REQ_CONFIRM);
+      Request("This level set is read-only!", REQ_CONFIRM);
 
       return;
     }
@@ -13774,7 +13914,7 @@ static void HandleControlButtons(struct GadgetInfo *gi)
       }
       else
       {
-       ChangeEditModeWindow(last_edit_mode);
+       ChangeEditModeWindow(ED_MODE_DRAWING);
 
        ClickOnGadget(level_editor_gadget[last_level_drawing_function],
                      MB_LEFTBUTTON);
@@ -13921,7 +14061,7 @@ static void HandleControlButtons(struct GadgetInfo *gi)
 
       for (x = 0; x < lev_fieldx; x++)
        for (y = 0; y < lev_fieldy; y++)
-         Feld[x][y] = UndoBuffer[undo_buffer_position][x][y];
+         Tile[x][y] = UndoBuffer[undo_buffer_position][x][y];
 
       // check if undo operation forces change of border style
       CheckLevelBorderElement(FALSE);
@@ -13939,7 +14079,7 @@ static void HandleControlButtons(struct GadgetInfo *gi)
       }
       else
       {
-       ChangeEditModeWindow(last_edit_mode);
+       ChangeEditModeWindow(ED_MODE_DRAWING);
       }
       break;
 
@@ -13949,7 +14089,7 @@ static void HandleControlButtons(struct GadgetInfo *gi)
 
       for (x = 0; x < MAX_LEV_FIELDX; x++)
        for (y = 0; y < MAX_LEV_FIELDY; y++)
-         Feld[x][y] = (button == 1 ? EL_EMPTY : new_element);
+         Tile[x][y] = (button == 1 ? EL_EMPTY : new_element);
 
       CopyLevelToUndoBuffer(GADGET_ID_CLEAR);
 
@@ -13980,7 +14120,7 @@ static void HandleControlButtons(struct GadgetInfo *gi)
 
        SetAutomaticNumberOfGemsNeeded();
 
-       CopyPlayfield(Feld, level.field);
+       CopyPlayfield(Tile, level.field);
        SaveLevel(level_nr);
 
        level.changed = FALSE;
@@ -14011,8 +14151,8 @@ static void HandleControlButtons(struct GadgetInfo *gi)
       if (LevelChanged())
        level.game_version = GAME_VERSION_ACTUAL;
 
-      CopyPlayfield(level.field, FieldBackup);
-      CopyPlayfield(Feld, level.field);
+      CopyPlayfield(level.field, TileBackup);
+      CopyPlayfield(Tile, level.field);
 
       CopyNativeLevel_RND_to_Native(&level);
 
@@ -14112,13 +14252,13 @@ static void HandleControlButtons(struct GadgetInfo *gi)
       }
 #ifdef DEBUG
       else if (gi->event.type == GD_EVENT_PRESSED)
-       printf("default: HandleControlButtons: GD_EVENT_PRESSED(%d)\n", id);
+       Debug("editor", "default: HandleControlButtons: GD_EVENT_PRESSED(%d)", id);
       else if (gi->event.type == GD_EVENT_RELEASED)
-       printf("default: HandleControlButtons: GD_EVENT_RELEASED(%d)\n", id);
+       Debug("editor", "default: HandleControlButtons: GD_EVENT_RELEASED(%d)", id);
       else if (gi->event.type == GD_EVENT_MOVING)
-       printf("default: HandleControlButtons: GD_EVENT_MOVING(%d)\n", id);
+       Debug("editor", "default: HandleControlButtons: GD_EVENT_MOVING(%d)", id);
       else
-       printf("default: HandleControlButtons: ? (id == %d)\n", id);
+       Debug("editor", "default: HandleControlButtons: ? (id == %d)", id);
 #endif
       break;
   }
@@ -14276,7 +14416,7 @@ void HandleLevelEditorKeyInput(Key key)
          ClickOnGadget(level_editor_gadget[i], button);
 }
 
-void HandleLevelEditorIdle(void)
+static void HandleLevelEditorIdle_Properties(void)
 {
   int element_border = graphic_info[IMG_EDITOR_ELEMENT_BORDER].border_size;
   int x = editor.settings.element_graphic.x + element_border;
@@ -14285,9 +14425,6 @@ void HandleLevelEditorIdle(void)
   unsigned int action_delay_value = GameFrameDelay;
   int i;
 
-  if (edit_mode != ED_MODE_PROPERTIES)
-    return;
-
   if (!DelayReached(&action_delay, action_delay_value))
     return;
 
@@ -14306,6 +14443,29 @@ void HandleLevelEditorIdle(void)
   FrameCounter++;      // increase animation frame counter
 }
 
+static void HandleLevelEditorIdle_Drawing(void)
+{
+  static boolean last_highlighted = FALSE;
+  boolean highlighted = (GetKeyModState() & KMOD_Alt);
+
+  if (highlighted != last_highlighted)
+  {
+    DrawAreaElementHighlight(highlighted);
+
+    last_highlighted = highlighted;
+
+    redraw_mask |= REDRAW_FIELD;
+  }
+}
+
+void HandleLevelEditorIdle(void)
+{
+  if (edit_mode == ED_MODE_PROPERTIES)
+    HandleLevelEditorIdle_Properties();
+  else if (edit_mode == ED_MODE_DRAWING)
+    HandleLevelEditorIdle_Drawing();
+}
+
 static void ClearEditorGadgetInfoText(void)
 {
   DrawBackground(INFOTEXT_XPOS, INFOTEXT_YPOS, INFOTEXT_XSIZE, INFOTEXT_YSIZE);
@@ -14477,7 +14637,7 @@ static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
                  ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
       }
       else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
-       strncpy(infotext, getElementInfoText(Feld[lx][ly]), max_infotext_len);
+       strncpy(infotext, getElementInfoText(Tile[lx][ly]), max_infotext_len);
       else
        sprintf(infotext, "Level position: %d, %d", lx, ly);
     }