rnd-20030629-2-src
[rocksndiamonds.git] / src / editor.c
index 29b34116a901fb4e9ef2630384883061d3013e34..d4b4102a86ed28a7f9ab7b498065a9f49f4a980f 100644 (file)
@@ -71,6 +71,7 @@
 #define ED_BORDER_SIZE                 3
 #define ED_BORDER2_SIZE                        5
 #define ED_GADGET_DISTANCE             2
+#define ED_GADGET_TEXT_DISTANCE                (2 * ED_GADGET_DISTANCE)
 
 /* values for the setting windows */
 #define ED_SETTINGS_XSTART             (3 * MINI_TILEX / 2)
                                         n * ED_COUNTER_YDISTANCE - 2)
 
 /* values for element content drawing areas */
+/* amoeba content */
 #define ED_AREA_ELEM_CONTENT_XPOS      ( 2 * MINI_TILEX)
 #define ED_AREA_ELEM_CONTENT_YPOS      (22 * MINI_TILEY)
 
+/* custom change target */
 #define ED_AREA_ELEM_CONTENT2_XPOS     (20 * MINI_TILEX)
 #define ED_AREA_ELEM_CONTENT2_YPOS     (ED_SETTINGS_YPOS(2) + \
                                         ED_GADGET_DISTANCE)
-
+/* optional custom graphic */
 #define ED_AREA_ELEM_CONTENT3_XPOS     (24 * MINI_TILEX)
 #define ED_AREA_ELEM_CONTENT3_YPOS     (ED_SETTINGS_YPOS(1) + \
                                         ED_GADGET_DISTANCE)
-
-#if 1
+/* custom element content */
 #define ED_AREA_ELEM_CONTENT4_XPOS     (29 * MINI_TILEX)
-#define ED_AREA_ELEM_CONTENT4_YPOS     (ED_SETTINGS_YPOS(3) + \
+#define ED_AREA_ELEM_CONTENT4_YPOS     (ED_SETTINGS_YPOS(12) + \
                                         ED_GADGET_DISTANCE - MINI_TILEY)
-#else
-#define ED_AREA_ELEM_CONTENT4_XPOS     (17 * MINI_TILEX)
-#define ED_AREA_ELEM_CONTENT4_YPOS     (ED_SETTINGS_YPOS(11) + \
-                                        ED_GADGET_DISTANCE - MINI_TILEY)
-#endif
+/* custom change trigger element */
+#define ED_AREA_ELEM_CONTENT5_XPOS     (30 * MINI_TILEX + MINI_TILEX / 2)
+#define ED_AREA_ELEM_CONTENT5_YPOS     (ED_SETTINGS_YPOS(7) + \
+                                        ED_GADGET_DISTANCE)
 
 /* values for random placement background drawing area */
 #define ED_AREA_RANDOM_BACKGROUND_XPOS (29 * MINI_TILEX)
 #define GADGET_ID_ELEMENT_CONTENT_DOWN (GADGET_ID_COUNTER_FIRST + 24)
 #define GADGET_ID_ELEMENT_CONTENT_TEXT (GADGET_ID_COUNTER_FIRST + 25)
 #define GADGET_ID_ELEMENT_CONTENT_UP   (GADGET_ID_COUNTER_FIRST + 26)
-#define GADGET_ID_CUSTOM_SCORE_DOWN    (GADGET_ID_COUNTER_FIRST + 27)
-#define GADGET_ID_CUSTOM_SCORE_TEXT    (GADGET_ID_COUNTER_FIRST + 28)
-#define GADGET_ID_CUSTOM_SCORE_UP      (GADGET_ID_COUNTER_FIRST + 29)
-#define GADGET_ID_PUSH_DELAY_FIX_DOWN  (GADGET_ID_COUNTER_FIRST + 30)
-#define GADGET_ID_PUSH_DELAY_FIX_TEXT  (GADGET_ID_COUNTER_FIRST + 31)
-#define GADGET_ID_PUSH_DELAY_FIX_UP    (GADGET_ID_COUNTER_FIRST + 32)
-#define GADGET_ID_PUSH_DELAY_RND_DOWN  (GADGET_ID_COUNTER_FIRST + 33)
-#define GADGET_ID_PUSH_DELAY_RND_TEXT  (GADGET_ID_COUNTER_FIRST + 34)
-#define GADGET_ID_PUSH_DELAY_RND_UP    (GADGET_ID_COUNTER_FIRST + 35)
-#define GADGET_ID_MOVE_DELAY_FIX_DOWN  (GADGET_ID_COUNTER_FIRST + 36)
-#define GADGET_ID_MOVE_DELAY_FIX_TEXT  (GADGET_ID_COUNTER_FIRST + 37)
-#define GADGET_ID_MOVE_DELAY_FIX_UP    (GADGET_ID_COUNTER_FIRST + 38)
-#define GADGET_ID_MOVE_DELAY_RND_DOWN  (GADGET_ID_COUNTER_FIRST + 39)
-#define GADGET_ID_MOVE_DELAY_RND_TEXT  (GADGET_ID_COUNTER_FIRST + 40)
-#define GADGET_ID_MOVE_DELAY_RND_UP    (GADGET_ID_COUNTER_FIRST + 41)
-#define GADGET_ID_CHANGE_DELAY_FIX_DOWN        (GADGET_ID_COUNTER_FIRST + 42)
-#define GADGET_ID_CHANGE_DELAY_FIX_TEXT        (GADGET_ID_COUNTER_FIRST + 43)
-#define GADGET_ID_CHANGE_DELAY_FIX_UP  (GADGET_ID_COUNTER_FIRST + 44)
-#define GADGET_ID_CHANGE_DELAY_RND_DOWN        (GADGET_ID_COUNTER_FIRST + 45)
-#define GADGET_ID_CHANGE_DELAY_RND_TEXT        (GADGET_ID_COUNTER_FIRST + 46)
-#define GADGET_ID_CHANGE_DELAY_RND_UP  (GADGET_ID_COUNTER_FIRST + 47)
+#define GADGET_ID_COLLECT_SCORE_DOWN   (GADGET_ID_COUNTER_FIRST + 27)
+#define GADGET_ID_COLLECT_SCORE_TEXT   (GADGET_ID_COUNTER_FIRST + 28)
+#define GADGET_ID_COLLECT_SCORE_UP     (GADGET_ID_COUNTER_FIRST + 29)
+#define GADGET_ID_COLLECT_GEMCOUNT_DOWN        (GADGET_ID_COUNTER_FIRST + 30)
+#define GADGET_ID_COLLECT_GEMCOUNT_TEXT        (GADGET_ID_COUNTER_FIRST + 31)
+#define GADGET_ID_COLLECT_GEMCOUNT_UP  (GADGET_ID_COUNTER_FIRST + 32)
+#define GADGET_ID_PUSH_DELAY_FIX_DOWN  (GADGET_ID_COUNTER_FIRST + 33)
+#define GADGET_ID_PUSH_DELAY_FIX_TEXT  (GADGET_ID_COUNTER_FIRST + 34)
+#define GADGET_ID_PUSH_DELAY_FIX_UP    (GADGET_ID_COUNTER_FIRST + 35)
+#define GADGET_ID_PUSH_DELAY_RND_DOWN  (GADGET_ID_COUNTER_FIRST + 36)
+#define GADGET_ID_PUSH_DELAY_RND_TEXT  (GADGET_ID_COUNTER_FIRST + 37)
+#define GADGET_ID_PUSH_DELAY_RND_UP    (GADGET_ID_COUNTER_FIRST + 38)
+#define GADGET_ID_MOVE_DELAY_FIX_DOWN  (GADGET_ID_COUNTER_FIRST + 39)
+#define GADGET_ID_MOVE_DELAY_FIX_TEXT  (GADGET_ID_COUNTER_FIRST + 40)
+#define GADGET_ID_MOVE_DELAY_FIX_UP    (GADGET_ID_COUNTER_FIRST + 41)
+#define GADGET_ID_MOVE_DELAY_RND_DOWN  (GADGET_ID_COUNTER_FIRST + 42)
+#define GADGET_ID_MOVE_DELAY_RND_TEXT  (GADGET_ID_COUNTER_FIRST + 43)
+#define GADGET_ID_MOVE_DELAY_RND_UP    (GADGET_ID_COUNTER_FIRST + 44)
+#define GADGET_ID_CHANGE_DELAY_FIX_DOWN        (GADGET_ID_COUNTER_FIRST + 45)
+#define GADGET_ID_CHANGE_DELAY_FIX_TEXT        (GADGET_ID_COUNTER_FIRST + 46)
+#define GADGET_ID_CHANGE_DELAY_FIX_UP  (GADGET_ID_COUNTER_FIRST + 47)
+#define GADGET_ID_CHANGE_DELAY_RND_DOWN        (GADGET_ID_COUNTER_FIRST + 48)
+#define GADGET_ID_CHANGE_DELAY_RND_TEXT        (GADGET_ID_COUNTER_FIRST + 49)
+#define GADGET_ID_CHANGE_DELAY_RND_UP  (GADGET_ID_COUNTER_FIRST + 50)
 
 /* drawing area identifiers */
-#define GADGET_ID_DRAWING_AREA_FIRST   (GADGET_ID_COUNTER_FIRST + 48)
+#define GADGET_ID_DRAWING_AREA_FIRST   (GADGET_ID_COUNTER_FIRST + 51)
 
 #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_AMOEBA_CONTENT       (GADGET_ID_DRAWING_AREA_FIRST + 9)
 #define GADGET_ID_CUSTOM_GRAPHIC       (GADGET_ID_DRAWING_AREA_FIRST + 10)
 #define GADGET_ID_CUSTOM_CONTENT       (GADGET_ID_DRAWING_AREA_FIRST + 11)
-#define GADGET_ID_CUSTOM_CHANGED       (GADGET_ID_DRAWING_AREA_FIRST + 12)
-#define GADGET_ID_RANDOM_BACKGROUND    (GADGET_ID_DRAWING_AREA_FIRST + 13)
+#define GADGET_ID_CUSTOM_CHANGE_TARGET (GADGET_ID_DRAWING_AREA_FIRST + 12)
+#define GADGET_ID_CUSTOM_CHANGE_TRIGGER        (GADGET_ID_DRAWING_AREA_FIRST + 13)
+#define GADGET_ID_RANDOM_BACKGROUND    (GADGET_ID_DRAWING_AREA_FIRST + 14)
 
 /* text input identifiers */
-#define GADGET_ID_TEXT_INPUT_FIRST     (GADGET_ID_DRAWING_AREA_FIRST + 14)
+#define GADGET_ID_TEXT_INPUT_FIRST     (GADGET_ID_DRAWING_AREA_FIRST + 15)
 
 #define GADGET_ID_LEVEL_NAME           (GADGET_ID_TEXT_INPUT_FIRST + 0)
 #define GADGET_ID_LEVEL_AUTHOR         (GADGET_ID_TEXT_INPUT_FIRST + 1)
 #define GADGET_ID_CUSTOM_DEADLINESS    (GADGET_ID_SELECTBOX_FIRST + 2)
 #define GADGET_ID_CUSTOM_MOVE_PATTERN  (GADGET_ID_SELECTBOX_FIRST + 3)
 #define GADGET_ID_CUSTOM_MOVE_DIRECTION        (GADGET_ID_SELECTBOX_FIRST + 4)
-#define GADGET_ID_CUSTOM_WALKABLE_LAYER        (GADGET_ID_SELECTBOX_FIRST + 5)
-#define GADGET_ID_CHANGE_TIME_UNITS    (GADGET_ID_SELECTBOX_FIRST + 6)
-#define GADGET_ID_CHANGE_CAUSE         (GADGET_ID_SELECTBOX_FIRST + 7)
+#define GADGET_ID_CUSTOM_MOVE_STEPSIZE (GADGET_ID_SELECTBOX_FIRST + 5)
+#define GADGET_ID_CUSTOM_SMASH_TARGETS (GADGET_ID_SELECTBOX_FIRST + 6)
+#define GADGET_ID_CUSTOM_ACCESS_TYPE   (GADGET_ID_SELECTBOX_FIRST + 7)
+#define GADGET_ID_CUSTOM_ACCESS_LAYER  (GADGET_ID_SELECTBOX_FIRST + 8)
+#define GADGET_ID_CHANGE_TIME_UNITS    (GADGET_ID_SELECTBOX_FIRST + 9)
+#define GADGET_ID_CHANGE_PLAYER_ACTION (GADGET_ID_SELECTBOX_FIRST + 10)
+#define GADGET_ID_CHANGE_IMPACT_ACTION (GADGET_ID_SELECTBOX_FIRST + 11)
+#define GADGET_ID_CHANGE_OTHER_ACTION  (GADGET_ID_SELECTBOX_FIRST + 12)
 
 /* textbutton identifiers */
-#define GADGET_ID_TEXTBUTTON_FIRST     (GADGET_ID_SELECTBOX_FIRST + 8)
+#define GADGET_ID_TEXTBUTTON_FIRST     (GADGET_ID_SELECTBOX_FIRST + 13)
 
 #define GADGET_ID_PROPERTIES_INFO      (GADGET_ID_TEXTBUTTON_FIRST + 0)
 #define GADGET_ID_PROPERTIES_CONFIG    (GADGET_ID_TEXTBUTTON_FIRST + 1)
 #define GADGET_ID_STICK_ELEMENT                (GADGET_ID_CHECKBUTTON_FIRST + 5)
 #define GADGET_ID_EM_SLIPPERY_GEMS     (GADGET_ID_CHECKBUTTON_FIRST + 6)
 #define GADGET_ID_CUSTOM_EXPLODE_RESULT        (GADGET_ID_CHECKBUTTON_FIRST + 7)
-#define GADGET_ID_CUSTOM_WALK_TO_OBJECT        (GADGET_ID_CHECKBUTTON_FIRST + 8)
-#define GADGET_ID_CUSTOM_DEADLY                (GADGET_ID_CHECKBUTTON_FIRST + 9)
-#define GADGET_ID_CUSTOM_CAN_MOVE      (GADGET_ID_CHECKBUTTON_FIRST + 10)
-#define GADGET_ID_CUSTOM_CAN_FALL      (GADGET_ID_CHECKBUTTON_FIRST + 11)
-#define GADGET_ID_CUSTOM_CAN_SMASH     (GADGET_ID_CHECKBUTTON_FIRST + 12)
-#define GADGET_ID_CUSTOM_SLIPPERY      (GADGET_ID_CHECKBUTTON_FIRST + 13)
-#define GADGET_ID_CUSTOM_WALKABLE      (GADGET_ID_CHECKBUTTON_FIRST + 14)
-#define GADGET_ID_CUSTOM_USE_GRAPHIC   (GADGET_ID_CHECKBUTTON_FIRST + 15)
-#define GADGET_ID_CUSTOM_USE_TEMPLATE  (GADGET_ID_CHECKBUTTON_FIRST + 16)
-#define GADGET_ID_CUSTOM_CHANGEABLE    (GADGET_ID_CHECKBUTTON_FIRST + 17)
-#define GADGET_ID_CHANGE_DELAY         (GADGET_ID_CHECKBUTTON_FIRST + 18)
+#define GADGET_ID_CUSTOM_EXPLODE_FIRE  (GADGET_ID_CHECKBUTTON_FIRST + 8)
+#define GADGET_ID_CUSTOM_EXPLODE_SMASH (GADGET_ID_CHECKBUTTON_FIRST + 9)
+#define GADGET_ID_CUSTOM_EXPLODE_IMPACT        (GADGET_ID_CHECKBUTTON_FIRST + 10)
+#define GADGET_ID_CUSTOM_WALK_TO_OBJECT        (GADGET_ID_CHECKBUTTON_FIRST + 11)
+#define GADGET_ID_CUSTOM_DEADLY                (GADGET_ID_CHECKBUTTON_FIRST + 12)
+#define GADGET_ID_CUSTOM_CAN_MOVE      (GADGET_ID_CHECKBUTTON_FIRST + 13)
+#define GADGET_ID_CUSTOM_CAN_FALL      (GADGET_ID_CHECKBUTTON_FIRST + 14)
+#define GADGET_ID_CUSTOM_CAN_SMASH     (GADGET_ID_CHECKBUTTON_FIRST + 15)
+#define GADGET_ID_CUSTOM_SLIPPERY      (GADGET_ID_CHECKBUTTON_FIRST + 16)
+#define GADGET_ID_CUSTOM_ACCESSIBLE    (GADGET_ID_CHECKBUTTON_FIRST + 17)
+#define GADGET_ID_CUSTOM_USE_GRAPHIC   (GADGET_ID_CHECKBUTTON_FIRST + 18)
+#define GADGET_ID_CUSTOM_USE_TEMPLATE  (GADGET_ID_CHECKBUTTON_FIRST + 19)
+#define GADGET_ID_CUSTOM_CAN_CHANGE    (GADGET_ID_CHECKBUTTON_FIRST + 20)
+#define GADGET_ID_CHANGE_DELAY         (GADGET_ID_CHECKBUTTON_FIRST + 21)
+#define GADGET_ID_CHANGE_BY_PLAYER     (GADGET_ID_CHECKBUTTON_FIRST + 22)
+#define GADGET_ID_CHANGE_IMPACT_SMASHED        (GADGET_ID_CHECKBUTTON_FIRST + 23)
+#define GADGET_ID_CHANGE_BY_OTHER      (GADGET_ID_CHECKBUTTON_FIRST + 24)
 
 /* gadgets for buttons in element list */
-#define GADGET_ID_ELEMENTLIST_FIRST    (GADGET_ID_CHECKBUTTON_FIRST + 19)
+#define GADGET_ID_ELEMENTLIST_FIRST    (GADGET_ID_CHECKBUTTON_FIRST + 25)
 #define GADGET_ID_ELEMENTLIST_LAST     (GADGET_ID_ELEMENTLIST_FIRST +  \
                                        ED_NUM_ELEMENTLIST_BUTTONS - 1)
 
 #define ED_COUNTER_ID_LEVEL_RANDOM     6
 #define ED_COUNTER_ID_ELEMENT_SCORE    7
 #define ED_COUNTER_ID_ELEMENT_CONTENT  8
-#define ED_COUNTER_ID_CUSTOM_SCORE     9
-#define ED_COUNTER_ID_PUSH_DELAY_FIX   10
-#define ED_COUNTER_ID_PUSH_DELAY_RND   11
-#define ED_COUNTER_ID_MOVE_DELAY_FIX   12
-#define ED_COUNTER_ID_MOVE_DELAY_RND   13
-#define ED_COUNTER_ID_CHANGE_DELAY_FIX 14
-#define ED_COUNTER_ID_CHANGE_DELAY_RND 15
+#define ED_COUNTER_ID_COLLECT_SCORE    9
+#define ED_COUNTER_ID_COLLECT_GEMCOUNT 10
+#define ED_COUNTER_ID_PUSH_DELAY_FIX   11
+#define ED_COUNTER_ID_PUSH_DELAY_RND   12
+#define ED_COUNTER_ID_MOVE_DELAY_FIX   13
+#define ED_COUNTER_ID_MOVE_DELAY_RND   14
+#define ED_COUNTER_ID_CHANGE_DELAY_FIX 15
+#define ED_COUNTER_ID_CHANGE_DELAY_RND 16
 
-#define ED_NUM_COUNTERBUTTONS          16
+#define ED_NUM_COUNTERBUTTONS          17
 
 #define ED_COUNTER_ID_LEVEL_FIRST      ED_COUNTER_ID_LEVEL_XSIZE
 #define ED_COUNTER_ID_LEVEL_LAST       ED_COUNTER_ID_LEVEL_RANDOM
 
-#define ED_COUNTER_ID_CUSTOM_FIRST     ED_COUNTER_ID_CUSTOM_SCORE
+#define ED_COUNTER_ID_CUSTOM_FIRST     ED_COUNTER_ID_COLLECT_SCORE
 #define ED_COUNTER_ID_CUSTOM_LAST      ED_COUNTER_ID_MOVE_DELAY_RND
 
 #define ED_COUNTER_ID_CHANGE_FIRST     ED_COUNTER_ID_CHANGE_DELAY_FIX
 #define ED_SELECTBOX_ID_CUSTOM_DEADLINESS      2
 #define ED_SELECTBOX_ID_CUSTOM_MOVE_PATTERN    3
 #define ED_SELECTBOX_ID_CUSTOM_MOVE_DIRECTION  4
-#define ED_SELECTBOX_ID_CUSTOM_WALKABLE_LAYER  5
-#define ED_SELECTBOX_ID_CHANGE_TIME_UNITS      6
-#define ED_SELECTBOX_ID_CHANGE_CAUSE           7
+#define ED_SELECTBOX_ID_CUSTOM_MOVE_STEPSIZE   5
+#define ED_SELECTBOX_ID_CUSTOM_SMASH_TARGETS   6
+#define ED_SELECTBOX_ID_CUSTOM_ACCESS_TYPE     7
+#define ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER    8
+#define ED_SELECTBOX_ID_CHANGE_TIME_UNITS      9
+#define ED_SELECTBOX_ID_CHANGE_PLAYER_ACTION   10
+#define ED_SELECTBOX_ID_CHANGE_IMPACT_ACTION   11
+#define ED_SELECTBOX_ID_CHANGE_OTHER_ACTION    12
 
-#define ED_NUM_SELECTBOX                       8
+#define ED_NUM_SELECTBOX                       13
 
 #define ED_SELECTBOX_ID_CUSTOM_FIRST   ED_SELECTBOX_ID_CUSTOM_WALK_TO_ACTION
-#define ED_SELECTBOX_ID_CUSTOM_LAST    ED_SELECTBOX_ID_CUSTOM_WALKABLE_LAYER
+#define ED_SELECTBOX_ID_CUSTOM_LAST    ED_SELECTBOX_ID_CUSTOM_ACCESS_LAYER
 
 #define ED_SELECTBOX_ID_CHANGE_FIRST   ED_SELECTBOX_ID_CHANGE_TIME_UNITS
-#define ED_SELECTBOX_ID_CHANGE_LAST    ED_SELECTBOX_ID_CHANGE_CAUSE
+#define ED_SELECTBOX_ID_CHANGE_LAST    ED_SELECTBOX_ID_CHANGE_OTHER_ACTION
 
 /* values for textbutton gadgets */
 #define ED_TEXTBUTTON_ID_PROPERTIES_INFO       0
 #define ED_CHECKBUTTON_ID_STICK_ELEMENT                3
 #define ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS     4
 #define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_RESULT        5
-#define ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT        6
-#define ED_CHECKBUTTON_ID_CUSTOM_DEADLY                7
-#define ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE      8
-#define ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL      9
-#define ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH     10
-#define ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY      11
-#define ED_CHECKBUTTON_ID_CUSTOM_WALKABLE      12
-#define ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC   13
-#define ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE  14
-#define ED_CHECKBUTTON_ID_CUSTOM_CHANGEABLE    15
-#define ED_CHECKBUTTON_ID_CHANGE_DELAY         16
-
-#define ED_NUM_CHECKBUTTONS                    17
+#define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE  6
+#define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH 7
+#define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT        8
+#define ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT        9
+#define ED_CHECKBUTTON_ID_CUSTOM_DEADLY                10
+#define ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE      11
+#define ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL      12
+#define ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH     13
+#define ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY      14
+#define ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE    15
+#define ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC   16
+#define ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE  17
+#define ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE    18
+#define ED_CHECKBUTTON_ID_CHANGE_DELAY         19
+#define ED_CHECKBUTTON_ID_CHANGE_BY_PLAYER     20
+#define ED_CHECKBUTTON_ID_CHANGE_IMPACT_SMASHED        21
+#define ED_CHECKBUTTON_ID_CHANGE_BY_OTHER      22
+
+#define ED_NUM_CHECKBUTTONS                    23
 
 #define ED_CHECKBUTTON_ID_LEVEL_FIRST  ED_CHECKBUTTON_ID_DOUBLE_SPEED
 #define ED_CHECKBUTTON_ID_LEVEL_LAST   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 
 #define ED_CHECKBUTTON_ID_CUSTOM_FIRST ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_RESULT
-#define ED_CHECKBUTTON_ID_CUSTOM_LAST  ED_CHECKBUTTON_ID_CUSTOM_WALKABLE
+#define ED_CHECKBUTTON_ID_CUSTOM_LAST  ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE
 
 #define ED_CHECKBUTTON_ID_CHANGE_FIRST ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
-#define ED_CHECKBUTTON_ID_CHANGE_LAST  ED_CHECKBUTTON_ID_CHANGE_DELAY
+#define ED_CHECKBUTTON_ID_CHANGE_LAST  ED_CHECKBUTTON_ID_CHANGE_BY_OTHER
 
 /* values for radiobutton gadgets */
 #define ED_RADIOBUTTON_ID_PERCENTAGE   0
 #define MIN_SCORE                      0
 #define MAX_SCORE                      255
 
+/* values for elements with gem count */
+#define MIN_GEM_COUNT                  0
+#define MAX_GEM_COUNT                  100
+
 /* values for random placement */
 #define RANDOM_USE_PERCENTAGE          0
 #define RANDOM_USE_QUANTITY            1
@@ -650,6 +682,8 @@ static struct
   char *text_above, *text_left, *text_right;
 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
 {
+  /* ---------- level and editor settings ---------------------------------- */
+
   {
     DX + 5 - SX,                       DY + 3 - SY,
     1,                                 100,
@@ -706,6 +740,9 @@ static struct
     &random_placement_value,
     "random element placement",                NULL, "in"
   },
+
+  /* ---------- element settings: configure (various elements) ------------- */
+
   {
     ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(0),
     MIN_SCORE,                         MAX_SCORE,
@@ -722,16 +759,27 @@ static struct
     &level.num_yamyam_contents,
     NULL,                              NULL, "number of content areas"
   },
+
+  /* ---------- element settings: configure (custom elements) ------------- */
+
   {
-    ED_SETTINGS_XPOS(9),               ED_SETTINGS_YPOS(4),
+    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(3),
     MIN_SCORE,                         MAX_SCORE,
-    GADGET_ID_CUSTOM_SCORE_DOWN,       GADGET_ID_CUSTOM_SCORE_UP,
-    GADGET_ID_CUSTOM_SCORE_TEXT,
-    &custom_element.score,
-    NULL,                              "score", NULL
+    GADGET_ID_COLLECT_SCORE_DOWN,      GADGET_ID_COLLECT_SCORE_UP,
+    GADGET_ID_COLLECT_SCORE_TEXT,
+    &custom_element.collect_score,
+    NULL,                              "collect score", NULL
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(5),
+    ED_SETTINGS_XPOS(13) + 10,         ED_SETTINGS_YPOS(3),
+    MIN_GEM_COUNT,                     MAX_GEM_COUNT,
+    GADGET_ID_COLLECT_GEMCOUNT_DOWN,   GADGET_ID_COLLECT_GEMCOUNT_UP,
+    GADGET_ID_COLLECT_GEMCOUNT_TEXT,
+    &custom_element.collect_gem_count,
+    NULL,                              "gems", NULL
+  },
+  {
+    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(4),
     0,                                 999,
     GADGET_ID_PUSH_DELAY_FIX_DOWN,     GADGET_ID_PUSH_DELAY_FIX_UP,
     GADGET_ID_PUSH_DELAY_FIX_TEXT,
@@ -739,7 +787,7 @@ static struct
     NULL,                              "push delay", NULL
   },
   {
-    ED_COUNT_PUSH_DELAY_RND_XPOS,      ED_SETTINGS_YPOS(5),
+    ED_COUNT_PUSH_DELAY_RND_XPOS,      ED_SETTINGS_YPOS(4),
     0,                                 999,
     GADGET_ID_PUSH_DELAY_RND_DOWN,     GADGET_ID_PUSH_DELAY_RND_UP,
     GADGET_ID_PUSH_DELAY_RND_TEXT,
@@ -747,7 +795,7 @@ static struct
     NULL,                              "+random", NULL
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(8),
+    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(7),
     0,                                 999,
     GADGET_ID_MOVE_DELAY_FIX_DOWN,     GADGET_ID_MOVE_DELAY_FIX_UP,
     GADGET_ID_MOVE_DELAY_FIX_TEXT,
@@ -755,13 +803,16 @@ static struct
     NULL,                              "move delay", NULL
   },
   {
-    ED_COUNT_MOVE_DELAY_RND_XPOS,      ED_SETTINGS_YPOS(8),
+    ED_COUNT_MOVE_DELAY_RND_XPOS,      ED_SETTINGS_YPOS(7),
     0,                                 999,
     GADGET_ID_MOVE_DELAY_RND_DOWN,     GADGET_ID_MOVE_DELAY_RND_UP,
     GADGET_ID_MOVE_DELAY_RND_TEXT,
     &custom_element.move_delay_random,
     NULL,                              "+random", NULL
   },
+
+  /* ---------- element settings: advanced (custom elements) --------------- */
+
   {
     ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(3),
     0,                                 999,
@@ -812,7 +863,7 @@ static struct ValueTextInfo options_walk_to_action[] =
   { EP_PUSHABLE,               "pushable"                      },
   { -1,                                NULL                            }
 };
-static int index_walk_to_action = 0;
+static int value_walk_to_action = 0;
 
 static struct ValueTextInfo options_move_pattern[] =
 {
@@ -827,9 +878,10 @@ static struct ValueTextInfo options_move_pattern[] =
   { MV_AWAY_FROM_PLAYER,       "away from player"              },
   { MV_ALONG_LEFT_SIDE,                "along left side"               },
   { MV_ALONG_RIGHT_SIDE,       "along right side"              },
+  { MV_TURNING_LEFT,           "turning left"                  },
+  { MV_TURNING_RIGHT,          "turning right"                 },
   { -1,                                NULL                            }
 };
-static int index_move_pattern = 0;
 
 static struct ValueTextInfo options_move_direction[] =
 {
@@ -840,17 +892,24 @@ static struct ValueTextInfo options_move_direction[] =
   { MV_DOWN,                   "down"                          },
   { -1,                                NULL                            }
 };
-static int index_move_direction = 0;
+
+static struct ValueTextInfo options_move_stepsize[] =
+{
+  { 1,                         "very slow"                     },
+  { 2,                         "slow"                          },
+  { 4,                         "normal"                        },
+  { 8,                         "fast"                          },
+  { 16,                                "very fast"                     },
+  { -1,                                NULL                            }
+};
 
 static struct ValueTextInfo options_consistency[] =
 {
+  { EP_CAN_EXPLODE,            "can explode"                   },
   { EP_INDESTRUCTIBLE,         "indestructible"                },
-  { EP_CAN_EXPLODE_BY_FIRE,    "can explode by fire"           },
-  { EP_CAN_EXPLODE_SMASHED,    "can explode when smashed"      },
-  { EP_CAN_EXPLODE_IMPACT,     "can explode on impact"         },
   { -1,                                NULL                            }
 };
-static int index_consistency = 0;
+static int value_consistency = 0;
 
 static struct ValueTextInfo options_deadliness[] =
 {
@@ -859,16 +918,33 @@ static struct ValueTextInfo options_deadliness[] =
   { EP_DONT_TOUCH,             "touching"                      },
   { -1,                                NULL                            }
 };
-static int index_deadliness = 0;
+static int value_deadliness = 0;
 
-static struct ValueTextInfo options_walkable_layer[] =
+static struct ValueTextInfo options_smash_targets[] =
 {
-  { EP_WALKABLE_OVER,          "over"                          },
-  { EP_WALKABLE_INSIDE,                "inside"                        },
-  { EP_WALKABLE_UNDER,         "under"                         },
+  { EP_CAN_SMASH_PLAYER,       "player"                        },
+  { EP_CAN_SMASH_ENEMIES,      "enemies"                       },
+  { EP_CAN_SMASH_EVERYTHING,   "everything"                    },
   { -1,                                NULL                            }
 };
-static int index_walkable_layer = 0;
+static int value_smash_targets = 0;
+
+static struct ValueTextInfo options_access_type[] =
+{
+  { EP_WALKABLE,               "walk"                          },
+  { EP_PASSABLE,               "pass"                          },
+  { -1,                                NULL                            }
+};
+static int value_access_type = 0;
+
+static struct ValueTextInfo options_access_layer[] =
+{
+  { EP_ACCESSIBLE_OVER,                "over"                          },
+  { EP_ACCESSIBLE_INSIDE,      "inside"                        },
+  { EP_ACCESSIBLE_UNDER,       "under"                         },
+  { -1,                                NULL                            }
+};
+static int value_access_layer = 0;
 
 static struct ValueTextInfo options_time_units[] =
 {
@@ -876,18 +952,33 @@ static struct ValueTextInfo options_time_units[] =
   { 1,                         "frames"                        },
   { -1,                                NULL                            }
 };
-static int index_time_units = 0;
 
-static struct ValueTextInfo options_change_cause[] =
+static struct ValueTextInfo options_change_player_action[] =
+{
+  { CE_TOUCHED_BY_PLAYER,      "touched"                       },
+  { CE_PRESSED_BY_PLAYER,      "pressed"                       },
+  { CE_PUSHED_BY_PLAYER,       "pushed"                        },
+  { -1,                                NULL                            }
+};
+static int value_change_player_action = 0;
+
+static struct ValueTextInfo options_change_impact_action[] =
+{
+  { CE_IMPACT,                 "on impact"                     },
+  { CE_SMASHED,                        "when smashed"                  },
+  { -1,                                NULL                            }
+};
+static int value_change_impact_action = 0;
+
+static struct ValueTextInfo options_change_other_action[] =
 {
-  { 1,                         "specified delay"               },
-  { 2,                         "impact (active)"               },
-  { 3,                         "impact (passive)"              },
-  { 4,                         "touched by player"             },
-  { 5,                         "pressed by player"             },
+  { CE_OTHER_COLLECTING,       "collecting"                    },
+  { CE_OTHER_PUSHING,          "pushing"                       },
+  { CE_OTHER_CHANGING,         "change of"                     },
+  { CE_OTHER_EXPLODING,                "explosion of"                  },
   { -1,                                NULL                            }
 };
-static int index_change_cause = 0, value_change_cause = 0;
+static int value_change_other_action = 0;
 
 static struct
 {
@@ -895,73 +986,118 @@ static struct
   int gadget_id;
   int size;    /* char size of selectbox or '-1' (dynamically determined) */
   struct ValueTextInfo *options;
-  int *index, *value;
+  int *value;
   char *text_left, *text_right, *infotext;
 } selectbox_info[ED_NUM_SELECTBOX] =
 {
+  /* ---------- element settings: configure (custom elements) ------------- */
+
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(4),
-    GADGET_ID_CUSTOM_WALK_TO_ACTION,
+    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(1),
+    GADGET_ID_CUSTOM_ACCESS_TYPE,
     -1,
-    options_walk_to_action, &index_walk_to_action,
-    &custom_element.walk_to_action,
-    NULL, NULL, "diggable/collectible/pushable"
+    options_access_type,
+    &value_access_type,
+    "player can", NULL, "type of access to this field"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(3),
-    GADGET_ID_CUSTOM_CONSISTENCY,
+    ED_SETTINGS_XPOS(11),              ED_SETTINGS_YPOS(1),
+    GADGET_ID_CUSTOM_ACCESS_LAYER,
     -1,
-    options_consistency, &index_consistency,
-    &custom_element.consistency,
-    NULL, "to", "consistency/destructibility"
+    options_access_layer,
+    &value_access_layer,
+    NULL, NULL, "layer of access for this field"
   },
   {
     ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(2),
-    GADGET_ID_CUSTOM_DEADLINESS,
+    GADGET_ID_CUSTOM_WALK_TO_ACTION,
     -1,
-    options_deadliness, &index_deadliness,
-    &custom_element.deadliness,
-    "deadly when", NULL, "deadliness of element"
+    options_walk_to_action,
+    &value_walk_to_action,
+    NULL, NULL, "diggable/collectible/pushable"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(6),
+    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(5),
     GADGET_ID_CUSTOM_MOVE_PATTERN,
     -1,
-    options_move_pattern, &index_move_pattern,
+    options_move_pattern,
     &custom_element.move_pattern,
     "can move", NULL, "element move direction"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(7),
+    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(6),
     GADGET_ID_CUSTOM_MOVE_DIRECTION,
     -1,
-    options_move_direction, &index_move_direction,
+    options_move_direction,
     &custom_element.move_direction_initial,
     "starts moving", NULL, "initial element move direction"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(13),
-    GADGET_ID_CUSTOM_WALKABLE_LAYER,
+    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(8),
+    GADGET_ID_CUSTOM_MOVE_STEPSIZE,
+    -1,
+    options_move_stepsize,
+    &custom_element.move_stepsize,
+    "move/fall speed", NULL, "speed of element movement"
+  },
+  {
+    ED_SETTINGS_XPOS(7),               ED_SETTINGS_YPOS(9),
+    GADGET_ID_CUSTOM_SMASH_TARGETS,
+    -1,
+    options_smash_targets,
+    &value_smash_targets,
+    "can smash", NULL, "elements that can be smashed"
+  },
+  {
+    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(11),
+    GADGET_ID_CUSTOM_DEADLINESS,
     -1,
-    options_walkable_layer, &index_walkable_layer,
-    &custom_element.walkable_layer,
-    "player can walk", NULL, "layer where player can walk"
+    options_deadliness,
+    &value_deadliness,
+    "deadly when", NULL, "deadliness of element"
   },
+  {
+    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(12),
+    GADGET_ID_CUSTOM_CONSISTENCY,
+    -1,
+    options_consistency,
+    &value_consistency,
+    NULL, "explodes to:", "consistency/destructibility"
+  },
+
+  /* ---------- element settings: advanced (custom elements) --------------- */
+
   {
     ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(4),
     GADGET_ID_CHANGE_TIME_UNITS,
     -1,
-    options_time_units, &index_time_units,
+    options_time_units,
     &custom_element.change.delay_frames,
     "delay time given in", NULL, "delay time units for change"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_COUNTER_YPOS(8),
-    GADGET_ID_CHANGE_CAUSE,
+    ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(5),
+    GADGET_ID_CHANGE_PLAYER_ACTION,
+    -1,
+    options_change_player_action,
+    &value_change_player_action,
+    NULL, "by player", "type of player contact"
+  },
+  {
+    ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(6),
+    GADGET_ID_CHANGE_IMPACT_ACTION,
+    -1,
+    options_change_impact_action,
+    &value_change_impact_action,
+    NULL, NULL, "change after impact or smash"
+  },
+  {
+    ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(7),
+    GADGET_ID_CHANGE_OTHER_ACTION,
     -1,
-    options_change_cause, &index_change_cause,
-    &value_change_cause,
-    "test:", NULL, "test-selectbox entry"
+    options_change_other_action,
+    &value_change_other_action,
+    NULL, "other element:", "type of other element action"
   },
 };
 
@@ -989,7 +1125,7 @@ static struct
     11, "Advanced",                    "Advanced element configuration"
   },
   {
-    ED_SETTINGS_XPOS(0) + 262,         ED_SETTINGS_YPOS(5),
+    ED_SETTINGS_XPOS(0) + 262,         ED_SETTINGS_YPOS(12),
     GADGET_ID_SAVE_AS_TEMPLATE,
     -1, "Save as template",            "Save current settings as new template"
   },
@@ -1111,6 +1247,8 @@ static struct
   char *text_right, *infotext;
 } checkbutton_info[ED_NUM_CHECKBUTTONS] =
 {
+  /* ---------- level and editor settings ---------------------------------- */
+
   {
     ED_SETTINGS_XPOS(0),               ED_COUNTER_YPOS(6) - MINI_TILEY,
     GADGET_ID_DOUBLE_SPEED,
@@ -1129,6 +1267,9 @@ static struct
     &random_placement_background_restricted,
     "restrict random placement to",    "set random placement restriction"
   },
+
+  /* ---------- element settings: configure (various elements) ------------- */
+
   {
     ED_SETTINGS_XPOS(0),               0,      /* set at runtime */
     GADGET_ID_STICK_ELEMENT,
@@ -1141,26 +1282,23 @@ static struct
     &level.em_slippery_gems,
     "slip down from certain flat walls","use EM style slipping behaviour"
   },
+
+  /* ---------- element settings: configure (custom elements) ------------- */
+
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(3),
-    GADGET_ID_CUSTOM_EXPLODE_RESULT,
-    &custom_element_properties[EP_EXPLODE_RESULT],
-    NULL,                              "set consistency/destructibility"
+    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(1),
+    GADGET_ID_CUSTOM_ACCESSIBLE,
+    &custom_element_properties[EP_ACCESSIBLE],
+    NULL,                              "player can walk to or pass this field"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(4),
+    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(2),
     GADGET_ID_CUSTOM_WALK_TO_OBJECT,
     &custom_element_properties[EP_WALK_TO_OBJECT],
     NULL,                              "player can dig/collect/push element"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(2),
-    GADGET_ID_CUSTOM_DEADLY,
-    &custom_element_properties[EP_DEADLY],
-    NULL,                              "element can kill the player"
-  },
-  {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(6),
+    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(5),
     GADGET_ID_CUSTOM_CAN_MOVE,
     &custom_element_properties[EP_CAN_MOVE],
     NULL,                              "element can move in some direction"
@@ -1175,7 +1313,7 @@ static struct
     ED_SETTINGS_XPOS(6),               ED_SETTINGS_YPOS(9),
     GADGET_ID_CUSTOM_CAN_SMASH,
     &custom_element_properties[EP_CAN_SMASH],
-    "can smash on impact",             "element can smash other elements"
+    NULL,                              "element can smash other elements"
   },
   {
     ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(10),
@@ -1184,28 +1322,49 @@ static struct
     "slippery",                                "other elements can fall down from it"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(13),
-    GADGET_ID_CUSTOM_WALKABLE,
-    &custom_element_properties[EP_WALKABLE],
-    NULL,                              "player can walk on the same field"
+    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(11),
+    GADGET_ID_CUSTOM_DEADLY,
+    &custom_element_properties[EP_DEADLY],
+    NULL,                              "element can kill the player"
+  },
+  {
+    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(12),
+    GADGET_ID_CUSTOM_EXPLODE_RESULT,
+    &custom_element_properties[EP_EXPLODE_RESULT],
+    NULL,                              "set consistency/destructibility"
+  },
+  {
+    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(13),
+    GADGET_ID_CUSTOM_EXPLODE_FIRE,
+    &custom_element_properties[EP_CAN_EXPLODE_BY_FIRE],
+    "by fire",                         "element can explode by fire/explosion"
+  },
+  {
+    ED_SETTINGS_XPOS(7),               ED_SETTINGS_YPOS(13),
+    GADGET_ID_CUSTOM_EXPLODE_SMASH,
+    &custom_element_properties[EP_CAN_EXPLODE_SMASHED],
+    "smashed",                         "element can explode when smashed"
+  },
+  {
+    ED_SETTINGS_XPOS(13),              ED_SETTINGS_YPOS(13),
+    GADGET_ID_CUSTOM_EXPLODE_IMPACT,
+    &custom_element_properties[EP_CAN_EXPLODE_IMPACT],
+    "impact",                          "element can explode on impact"
   },
+
+  /* ---------- element settings: advanced (custom elements) --------------- */
+
   {
     ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(1),
     GADGET_ID_CUSTOM_USE_GRAPHIC,
     &custom_element.use_gfx_element,
     "use graphic of element:",         "use graphic for custom element"
   },
-  {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(5),
-    GADGET_ID_CUSTOM_USE_TEMPLATE,
-    &custom_element.use_template,
-    "use template",                    "use template for custom properties"
-  },
   {
     ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(2),
-    GADGET_ID_CUSTOM_CHANGEABLE,
-    &custom_element_properties[EP_CHANGEABLE],
-    "element changes to    after:",    "element can change to other element"
+    GADGET_ID_CUSTOM_CAN_CHANGE,
+    &custom_element_properties[EP_CAN_CHANGE],
+    "element changes to    after/when:","element can change to other element"
   },
   {
     ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(3),
@@ -1213,6 +1372,30 @@ static struct
     &custom_element_change_events[CE_DELAY],
     NULL,                              "element changes after delay"
   },
+  {
+    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(5),
+    GADGET_ID_CHANGE_BY_PLAYER,
+    &custom_element_change_events[CE_BY_PLAYER],
+    NULL,                              "element changes by player contact"
+  },
+  {
+    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(6),
+    GADGET_ID_CHANGE_IMPACT_SMASHED,
+    &custom_element_change_events[CE_IMPACT_SMASHED],
+    NULL,                              "element changes by impact or smash"
+  },
+  {
+    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(7),
+    GADGET_ID_CHANGE_BY_OTHER,
+    &custom_element_change_events[CE_BY_OTHER],
+    NULL,                              "element changes by other element"
+  },
+  {
+    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(12),
+    GADGET_ID_CUSTOM_USE_TEMPLATE,
+    &custom_element.use_template,
+    "use template",                    "use template for custom properties"
+  },
 };
 
 
@@ -2402,7 +2585,7 @@ static void CreateCounterButtons()
     if (counterbutton_info[i].text_left != NULL)
       xoffset = (getFontWidth(FONT_TEXT_1) *
                 strlen(counterbutton_info[i].text_left) +
-                2 * ED_GADGET_DISTANCE);
+                ED_GADGET_TEXT_DISTANCE);
 
     for (j=0; j<2; j++)
     {
@@ -2644,7 +2827,7 @@ static void CreateDrawingAreas()
   level_editor_gadget[id] = gi;
 
   /* ... one for each custom element change target element ... */
-  id = GADGET_ID_CUSTOM_CHANGED;
+  id = GADGET_ID_CUSTOM_CHANGE_TARGET;
   gi = CreateGadget(GDI_CUSTOM_ID, id,
                    GDI_X, SX + ED_AREA_ELEM_CONTENT2_XPOS,
                    GDI_Y, SY + ED_AREA_ELEM_CONTENT2_YPOS,
@@ -2662,8 +2845,26 @@ static void CreateDrawingAreas()
 
   level_editor_gadget[id] = gi;
 
-  /* ... and one for random placement background restrictions */
+  /* ... one for each custom element change trigger element ... */
+  id = GADGET_ID_CUSTOM_CHANGE_TRIGGER;
+  gi = CreateGadget(GDI_CUSTOM_ID, id,
+                   GDI_X, SX + ED_AREA_ELEM_CONTENT5_XPOS,
+                   GDI_Y, SY + ED_AREA_ELEM_CONTENT5_YPOS,
+                   GDI_WIDTH, MINI_TILEX,
+                   GDI_HEIGHT, MINI_TILEY,
+                   GDI_TYPE, GD_TYPE_DRAWING_AREA,
+                   GDI_ITEM_SIZE, MINI_TILEX, MINI_TILEY,
+                   GDI_EVENT_MASK, event_mask,
+                   GDI_CALLBACK_INFO, HandleDrawingAreaInfo,
+                   GDI_CALLBACK_ACTION, HandleDrawingAreas,
+                   GDI_END);
+
+  if (gi == NULL)
+    Error(ERR_EXIT, "cannot create gadget");
+
+  level_editor_gadget[id] = gi;
 
+  /* ... and one for random placement background restrictions */
   id = GADGET_ID_RANDOM_BACKGROUND;
   gi = CreateGadget(GDI_CUSTOM_ID, id,
                    GDI_X, SX + ED_AREA_RANDOM_BACKGROUND_XPOS,
@@ -2770,7 +2971,7 @@ static void CreateSelectboxGadgets()
     if (selectbox_info[i].text_left != NULL)
       xoffset = (getFontWidth(FONT_TEXT_1) *
                 strlen(selectbox_info[i].text_left) +
-                2 * ED_GADGET_DISTANCE);
+                ED_GADGET_TEXT_DISTANCE);
 
     sprintf(infotext, "Select %s", selectbox_info[i].infotext);
     infotext[max_infotext_len] = '\0';
@@ -2782,7 +2983,6 @@ static void CreateSelectboxGadgets()
                      GDI_Y, SY + selectbox_info[i].y,
                      GDI_TYPE, GD_TYPE_SELECTBOX,
                      GDI_SELECTBOX_OPTIONS, selectbox_info[i].options,
-                     GDI_SELECTBOX_INDEX, selectbox_info[i].index,
                      GDI_TEXT_SIZE, selectbox_info[i].size,
                      GDI_TEXT_FONT, FONT_INPUT_1,
                      GDI_TEXT_FONT_ACTIVE, FONT_INPUT_1_ACTIVE,
@@ -3153,7 +3353,7 @@ static void MapSelectboxGadget(int id)
 {
   int xoffset_left = 0;
   int yoffset_left = ED_BORDER_SIZE;
-  int xoffset_right = ED_BORDER_SIZE;
+  int xoffset_right = ED_GADGET_TEXT_DISTANCE;
   int yoffset_right = ED_BORDER_SIZE;
   int x = selectbox_info[id].x + xoffset_left;
   int y = selectbox_info[id].y + yoffset_left;
@@ -3331,7 +3531,7 @@ static void CopyCustomElementPropertiesToEditor(int element)
     custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
 
   /* set walk-to-object action selectbox help value */
-  custom_element.walk_to_action =
+  value_walk_to_action =
     (IS_DIGGABLE(element) ? EP_DIGGABLE :
      IS_COLLECTIBLE(element) ? EP_COLLECTIBLE :
      IS_PUSHABLE(element) ? EP_PUSHABLE :
@@ -3342,16 +3542,16 @@ static void CopyCustomElementPropertiesToEditor(int element)
      IS_PUSHABLE(element));
 
   /* set consistency selectbox help value */
-  custom_element.consistency =
-    (IS_INDESTRUCTIBLE(element) ? EP_INDESTRUCTIBLE :
-     CAN_EXPLODE_BY_FIRE(element) ? EP_CAN_EXPLODE_BY_FIRE :
-     EP_INDESTRUCTIBLE);
+  value_consistency =
+    (CAN_EXPLODE(element) ? EP_CAN_EXPLODE :
+     IS_INDESTRUCTIBLE(element) ? EP_INDESTRUCTIBLE :
+     EP_CAN_EXPLODE);
   custom_element_properties[EP_EXPLODE_RESULT] =
-    (IS_INDESTRUCTIBLE(element) ||
-     CAN_EXPLODE_BY_FIRE(element));
+    (CAN_EXPLODE(element) ||
+     IS_INDESTRUCTIBLE(element));
 
   /* set deadliness selectbox help value */
-  custom_element.deadliness =
+  value_deadliness =
     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
@@ -3361,16 +3561,52 @@ static void CopyCustomElementPropertiesToEditor(int element)
      DONT_COLLIDE_WITH(element) ||
      DONT_RUN_INTO(element));
 
-  /* set walkable layer selectbox help value */
-  custom_element.walkable_layer =
-    (IS_WALKABLE_OVER(element) ? EP_WALKABLE_OVER :
-     IS_WALKABLE_INSIDE(element) ? EP_WALKABLE_INSIDE :
-     IS_WALKABLE_UNDER(element) ? EP_WALKABLE_UNDER :
-     EP_WALKABLE_OVER);
-  custom_element_properties[EP_WALKABLE] =
-    (IS_WALKABLE_OVER(element) ||
-     IS_WALKABLE_INSIDE(element) ||
-     IS_WALKABLE_UNDER(element));
+  /* set smash targets selectbox help value */
+  value_smash_targets =
+    (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
+     CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
+     CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
+     EP_CAN_SMASH_PLAYER);
+  custom_element_properties[EP_CAN_SMASH] =
+    (CAN_SMASH_EVERYTHING(element) ||
+     CAN_SMASH_ENEMIES(element) ||
+     CAN_SMASH_PLAYER(element));
+
+  /* set accessible layer selectbox help value */
+  value_access_type =
+    (IS_WALKABLE(element) ? EP_WALKABLE :
+     IS_PASSABLE(element) ? EP_PASSABLE :
+     EP_WALKABLE);
+  value_access_layer =
+    (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
+     IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
+     IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
+     EP_ACCESSIBLE_OVER);
+  custom_element_properties[EP_ACCESSIBLE] =
+    (IS_ACCESSIBLE_OVER(element) ||
+     IS_ACCESSIBLE_INSIDE(element) ||
+     IS_ACCESSIBLE_UNDER(element));
+
+  /* set change by player selectbox help value */
+  value_change_player_action =
+    (HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
+     HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
+     HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
+     CE_PRESSED_BY_PLAYER);
+
+  /* set change by impact/smash selectbox help value */
+  value_change_impact_action =
+    (HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
+     HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
+     CE_IMPACT);
+
+  /* set change by other element action selectbox help value */
+  value_change_other_action =
+    (HAS_CHANGE_EVENT(element, CE_OTHER_EXPLODING) ? CE_OTHER_EXPLODING :
+     HAS_CHANGE_EVENT(element, CE_OTHER_CHANGING) ? CE_OTHER_CHANGING :
+     HAS_CHANGE_EVENT(element, CE_OTHER_PUSHING) ? CE_OTHER_PUSHING :
+     HAS_CHANGE_EVENT(element, CE_OTHER_COLLECTING) ? CE_OTHER_COLLECTING :
+     CE_OTHER_COLLECTING);
 }
 
 static void CopyCustomElementPropertiesToGame(int element)
@@ -3383,28 +3619,61 @@ static void CopyCustomElementPropertiesToGame(int element)
   custom_element_properties[EP_DIGGABLE] = FALSE;
   custom_element_properties[EP_COLLECTIBLE] = FALSE;
   custom_element_properties[EP_PUSHABLE] = FALSE;
-  custom_element_properties[custom_element.walk_to_action] =
+  custom_element_properties[value_walk_to_action] =
     custom_element_properties[EP_WALK_TO_OBJECT];
 
   /* set consistency property from checkbox and selectbox */
+  custom_element_properties[EP_CAN_EXPLODE] = FALSE;
   custom_element_properties[EP_INDESTRUCTIBLE] = FALSE;
-  custom_element_properties[EP_CAN_EXPLODE_BY_FIRE] = FALSE;
-  custom_element_properties[custom_element.consistency] =
+  custom_element_properties[value_consistency] =
     custom_element_properties[EP_EXPLODE_RESULT];
 
   /* set deadliness property from checkbox and selectbox */
   custom_element_properties[EP_DONT_RUN_INTO] = FALSE;
   custom_element_properties[EP_DONT_COLLIDE_WITH] = FALSE;
   custom_element_properties[EP_DONT_TOUCH] = FALSE;
-  custom_element_properties[custom_element.deadliness] =
+  custom_element_properties[value_deadliness] =
     custom_element_properties[EP_DEADLY];
 
-  /* set walkable property from checkbox and selectbox */
+  /* set smash property from checkbox and selectbox */
+  custom_element_properties[EP_CAN_SMASH_PLAYER] = FALSE;
+  custom_element_properties[EP_CAN_SMASH_ENEMIES] = FALSE;
+  custom_element_properties[EP_CAN_SMASH_EVERYTHING] = FALSE;
+  custom_element_properties[value_smash_targets] =
+    custom_element_properties[EP_CAN_SMASH];
+
+  /* set accessible property from checkbox and selectbox */
   custom_element_properties[EP_WALKABLE_OVER] = FALSE;
   custom_element_properties[EP_WALKABLE_INSIDE] = FALSE;
   custom_element_properties[EP_WALKABLE_UNDER] = FALSE;
-  custom_element_properties[custom_element.walkable_layer] =
-    custom_element_properties[EP_WALKABLE];
+  custom_element_properties[EP_PASSABLE_OVER] = FALSE;
+  custom_element_properties[EP_PASSABLE_INSIDE] = FALSE;
+  custom_element_properties[EP_PASSABLE_UNDER] = FALSE;
+  custom_element_properties[((value_access_type == EP_WALKABLE ?
+                             EP_WALKABLE_OVER : EP_PASSABLE_OVER) +
+                            (value_access_layer - EP_ACCESSIBLE_OVER))] =
+    custom_element_properties[EP_ACCESSIBLE];
+
+  /* set player change event from checkbox and selectbox */
+  custom_element_change_events[CE_TOUCHED_BY_PLAYER] = FALSE;
+  custom_element_change_events[CE_PRESSED_BY_PLAYER] = FALSE;
+  custom_element_change_events[CE_PUSHED_BY_PLAYER] = FALSE;
+  custom_element_change_events[value_change_player_action] =
+    custom_element_change_events[CE_BY_PLAYER];
+
+  /* set player change event from checkbox and selectbox */
+  custom_element_change_events[CE_IMPACT] = FALSE;
+  custom_element_change_events[CE_SMASHED] = FALSE;
+  custom_element_change_events[value_change_impact_action] =
+    custom_element_change_events[CE_IMPACT_SMASHED];
+
+  /* set other element action change event from checkbox and selectbox */
+  custom_element_change_events[CE_OTHER_COLLECTING] = FALSE;
+  custom_element_change_events[CE_OTHER_PUSHING] = FALSE;
+  custom_element_change_events[CE_OTHER_CHANGING] = FALSE;
+  custom_element_change_events[CE_OTHER_EXPLODING] = FALSE;
+  custom_element_change_events[value_change_other_action] =
+    custom_element_change_events[CE_BY_OTHER];
 
   for (i=0; i < NUM_ELEMENT_PROPERTIES; i++)
     SET_PROPERTY(element, i, custom_element_properties[i]);
@@ -3823,9 +4092,9 @@ static void DrawCustomContentArea()
   MapDrawingArea(GADGET_ID_CUSTOM_CONTENT);
 }
 
-static void DrawCustomChangedArea()
+static void DrawCustomChangeTargetArea()
 {
-  struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_CHANGED];
+  struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_CHANGE_TARGET];
   int xpos = ED_AREA_ELEM_CONTENT2_XPOS;
   int ypos = ED_AREA_ELEM_CONTENT2_YPOS;
   int area_sx = SX + xpos;
@@ -3843,7 +4112,30 @@ static void DrawCustomChangedArea()
   DrawMiniGraphicExt(drawto, gi->x, gi->y,
                     el2edimg(custom_element.change.successor));
 
-  MapDrawingArea(GADGET_ID_CUSTOM_CHANGED);
+  MapDrawingArea(GADGET_ID_CUSTOM_CHANGE_TARGET);
+}
+
+static void DrawCustomChangeTriggerArea()
+{
+  struct GadgetInfo *gi = level_editor_gadget[GADGET_ID_CUSTOM_CHANGE_TRIGGER];
+  int xpos = ED_AREA_ELEM_CONTENT5_XPOS;
+  int ypos = ED_AREA_ELEM_CONTENT5_YPOS;
+  int area_sx = SX + xpos;
+  int area_sy = SY + ypos;
+
+  if (!IS_CUSTOM_ELEMENT(properties_element))
+  {
+    /* this should never happen */
+    Error(ERR_WARN, "element %d is no custom element", properties_element);
+
+    return;
+  }
+
+  DrawElementBorder(area_sx, area_sy, MINI_TILEX, MINI_TILEY, TRUE);
+  DrawMiniGraphicExt(drawto, gi->x, gi->y,
+                    el2edimg(custom_element.change.trigger));
+
+  MapDrawingArea(GADGET_ID_CUSTOM_CHANGE_TRIGGER);
 }
 
 static void DrawElementContentAreas()
@@ -3922,7 +4214,7 @@ static boolean PrintInfoText(char *text, int font_nr, int screen_line)
 {
   int font_height = getFontHeight(font_nr);
   int pad_x = ED_SETTINGS_XPOS(0);
-  int pad_y = ED_SETTINGS_YPOS(0);
+  int pad_y = ED_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
   int sx = SX + pad_x;
   int sy = SY + pad_y;
   int max_lines_per_screen = (SYSIZE - pad_y) / font_height - 1;
@@ -4076,12 +4368,18 @@ static void DrawPropertiesTabulatorGadgets()
   int gd_y = gd->y + gd_gi->height - 1;
   Pixel tab_color = GetPixel(gd->bitmap, gd_x, gd_y);
   int id_first = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
+#if 1
+  int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
+#else
   int id_last  = ED_TEXTBUTTON_ID_PROPERTIES_INFO;
+#endif
   int i;
 
+#if 0
   /* draw additional "configure" tabulator for configurable elements */
   if (checkPropertiesConfig())
     id_last = ED_TEXTBUTTON_ID_PROPERTIES_CONFIG;
+#endif
 
   /* draw additional "advanced" tabulator for custom elements */
   if (IS_CUSTOM_ELEMENT(properties_element))
@@ -4131,8 +4429,16 @@ static void DrawPropertiesInfo()
 
     { EP_CAN_MOVE,             "- can move"                            },
     { EP_CAN_FALL,             "- can fall"                            },
-    { EP_CAN_SMASH,            "- can smash other objects"             },
-    { EP_CAN_EXPLODE_BY_FIRE,  "- can explode (by fire/explosion)"     },
+#if 0
+    { EP_CAN_SMASH,            "- can smash"                           },
+#endif
+    { EP_CAN_SMASH_PLAYER,     "- can smash player"                    },
+    { EP_CAN_SMASH_ENEMIES,    "- can smash good and bad guys"         },
+    { EP_CAN_SMASH_EVERYTHING, "- can smash everything smashable"      },
+    { EP_CAN_EXPLODE,          "- can explode"                         },
+    { EP_CAN_EXPLODE_BY_FIRE,  "  - by fire or explosions"             },
+    { EP_CAN_EXPLODE_SMASHED,  "  - when smashed"                      },
+    { EP_CAN_EXPLODE_IMPACT,   "  - on impact"                         },
 
     { EP_DONT_RUN_INTO,                "- deadly when running into"            },
     { EP_DONT_COLLIDE_WITH,    "- deadly when colliding with"          },
@@ -4162,7 +4468,7 @@ static void DrawPropertiesInfo()
   int font1_width = getFontWidth(font1_nr);
   int font2_height = getFontHeight(font2_nr);
   int pad_x = ED_SETTINGS_XPOS(0);
-  int pad_y = ED_SETTINGS_YPOS(0);
+  int pad_y = ED_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
   int screen_line = 0;
   int i, x, y;
 
@@ -4303,6 +4609,13 @@ static void DrawPropertiesConfig()
 {
   int i;
 
+  if (!checkPropertiesConfig())
+  {
+    PrintInfoText("No configuration options available.", FONT_TEXT_1, 0);
+
+    return;
+  }
+
   /* check if there are elements where a score can be chosen for */
   for (i=0; elements_with_counter[i].element != -1; i++)
   {
@@ -4386,7 +4699,53 @@ static void DrawPropertiesAdvanced()
 
   /* draw drawing area gadgets */
   DrawCustomGraphicElementArea();
-  DrawCustomChangedArea();
+  DrawCustomChangeTargetArea();
+  DrawCustomChangeTriggerArea();
+}
+
+static void DrawElementName(int x, int y, int element)
+{
+  char *element_name = getElementInfoText(element);
+  int font_nr = FONT_TEXT_1;
+  int font_width = getFontWidth(font_nr);
+  int font_height = getFontHeight(font_nr);
+  int max_text_width = SXSIZE - x - ED_SETTINGS_XPOS(0);
+  int max_chars_per_line = max_text_width / font_width;
+  char buffer[max_chars_per_line + 1];
+
+  if (strlen(element_name) <= max_chars_per_line)
+    DrawTextF(x, y, font_nr, element_name);
+  else
+  {
+    int next_pos = max_chars_per_line;
+
+    strncpy(buffer, element_name, max_chars_per_line);
+    buffer[max_chars_per_line] = '\0';
+
+    if (element_name[max_chars_per_line] == ' ')
+      next_pos++;
+    else
+    {
+      int i;
+
+      for (i = max_chars_per_line - 1; i >= 0; i--)
+       if (buffer[i] == ' ')
+         break;
+
+      if (strlen(&element_name[i + 1]) <= max_chars_per_line)
+      {
+       buffer[i] = '\0';
+       next_pos = i + 1;
+      }
+    }
+
+    DrawTextF(x, y - font_height / 2, font_nr, buffer);
+
+    strncpy(buffer, &element_name[next_pos], max_chars_per_line);
+    buffer[max_chars_per_line] = '\0';
+
+    DrawTextF(x, y + font_height / 2, font_nr, buffer);
+  }
 }
 
 static void DrawPropertiesWindow()
@@ -4401,9 +4760,11 @@ static void DrawPropertiesWindow()
       !IS_CUSTOM_ELEMENT(properties_element))
     edit_mode_properties = ED_MODE_PROPERTIES_CONFIG;
 
+#if 0
   if (edit_mode_properties == ED_MODE_PROPERTIES_CONFIG &&
       !checkPropertiesConfig())
     edit_mode_properties = ED_MODE_PROPERTIES_INFO;
+#endif
 
   if (IS_CUSTOM_ELEMENT(properties_element))
     CopyCustomElementPropertiesToEditor(properties_element);
@@ -4426,8 +4787,8 @@ static void DrawPropertiesWindow()
 
   FrameCounter = 0;    /* restart animation frame counter */
 
-  DrawTextF((xstart + 3) * MINI_TILEX, (ystart + 1) * MINI_TILEY,
-           FONT_TEXT_1, getElementInfoText(properties_element));
+  DrawElementName((xstart + 3) * MINI_TILEX, (ystart + 1) * MINI_TILEY,
+                 properties_element);
 
   DrawPropertiesTabulatorGadgets();
 
@@ -5103,6 +5464,10 @@ static void HandleDrawingAreas(struct GadgetInfo *gi)
     (draw_level || drawing_function == GADGET_ID_PICK_ELEMENT ?
      drawing_function : GADGET_ID_SINGLE_ITEMS);
 
+  /* clicking into drawing area with pressed Control key picks element */
+  if (GetKeyModState() & KMOD_Control)
+    actual_drawing_function = GADGET_ID_PICK_ELEMENT;
+
   switch (actual_drawing_function)
   {
     case GADGET_ID_SINGLE_ITEMS:
@@ -5181,11 +5546,16 @@ static void HandleDrawingAreas(struct GadgetInfo *gi)
          custom_element.content[sx][sy] = new_element;
          element_info[properties_element] = custom_element;
        }
-       else if (id == GADGET_ID_CUSTOM_CHANGED)
+       else if (id == GADGET_ID_CUSTOM_CHANGE_TARGET)
        {
          custom_element.change.successor = new_element;
          element_info[properties_element] = custom_element;
        }
+       else if (id == GADGET_ID_CUSTOM_CHANGE_TRIGGER)
+       {
+         custom_element.change.trigger = new_element;
+         element_info[properties_element] = custom_element;
+       }
        else if (id == GADGET_ID_RANDOM_BACKGROUND)
          random_placement_background_element = new_element;
        else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
@@ -5296,8 +5666,10 @@ static void HandleDrawingAreas(struct GadgetInfo *gi)
        PickDrawingElement(button, custom_element.gfx_element);
       else if (id == GADGET_ID_CUSTOM_CONTENT)
        PickDrawingElement(button, custom_element.content[sx][sy]);
-      else if (id == GADGET_ID_CUSTOM_CHANGED)
+      else if (id == GADGET_ID_CUSTOM_CHANGE_TARGET)
        PickDrawingElement(button, custom_element.change.successor);
+      else if (id == GADGET_ID_CUSTOM_CHANGE_TRIGGER)
+       PickDrawingElement(button, custom_element.change.trigger);
       else if (id == GADGET_ID_RANDOM_BACKGROUND)
        PickDrawingElement(button, random_placement_background_element);
       else if (id >= GADGET_ID_ELEMENT_CONTENT_0 &&
@@ -5386,7 +5758,6 @@ static void HandleSelectboxGadgets(struct GadgetInfo *gi)
 {
   int type_id = gi->custom_type_id;
 
-  *selectbox_info[type_id].index = gi->selectbox.index;
   *selectbox_info[type_id].value =
     selectbox_info[type_id].options[gi->selectbox.index].value;
 
@@ -5446,7 +5817,8 @@ static void HandleControlButtons(struct GadgetInfo *gi)
 
   if (id < ED_NUM_CTRL1_BUTTONS && id != GADGET_ID_PROPERTIES &&
       id != GADGET_ID_PICK_ELEMENT && edit_mode != ED_MODE_DRAWING &&
-      drawing_function != GADGET_ID_PICK_ELEMENT)
+      drawing_function != GADGET_ID_PICK_ELEMENT &&
+      !(GetKeyModState() & KMOD_Control))
   {
     DrawDrawingWindow();
     edit_mode = ED_MODE_DRAWING;
@@ -5727,7 +6099,8 @@ static void HandleControlButtons(struct GadgetInfo *gi)
        PickDrawingElement(button, new_element);
 
        if (!stick_element_properties_window &&
-           drawing_function != GADGET_ID_PICK_ELEMENT)
+           drawing_function != GADGET_ID_PICK_ELEMENT &&
+           !(GetKeyModState() & KMOD_Control))
        {
          properties_element = new_element;
          if (edit_mode == ED_MODE_PROPERTIES)
@@ -5887,7 +6260,9 @@ void HandleEditorGadgetInfoText(void *ptr)
     {
       if (gi->custom_id == GADGET_ID_SINGLE_ITEMS)     /* special case 1 */
        sprintf(shortcut, " ('.' or '%c')", key);
-      else if (gi->custom_id == GADGET_ID_TEST)                /* special case 2 */
+      else if (gi->custom_id == GADGET_ID_PICK_ELEMENT)        /* special case 2 */
+       sprintf(shortcut, " ('%c' or 'Ctrl')", key);
+      else if (gi->custom_id == GADGET_ID_TEST)                /* special case 3 */
        sprintf(shortcut, " ('Enter' or 'Shift-%c')", key);
       else                                             /* normal case */
        sprintf(shortcut, " ('%s%c')",
@@ -5913,6 +6288,11 @@ static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
   int min_sx = 0, min_sy = 0;
   int max_sx = gi->drawing.area_xsize - 1;
   int max_sy = gi->drawing.area_ysize - 1;
+  int actual_drawing_function = drawing_function;
+
+  /* pressed Control key: simulate picking element */
+  if (GetKeyModState() & KMOD_Control)
+    actual_drawing_function = GADGET_ID_PICK_ELEMENT;
 
   ClearEditorGadgetInfoText();
 
@@ -5953,7 +6333,7 @@ static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
          start_ly = ly;
        }
 
-       switch (drawing_function)
+       switch (actual_drawing_function)
        {
          case GADGET_ID_SINGLE_ITEMS:
            infotext = "Drawing single items";
@@ -5991,7 +6371,7 @@ static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
            break;
        }
 
-       if (drawing_function == GADGET_ID_PICK_ELEMENT)
+       if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
          DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
                    "%s: %d, %d", infotext, lx, ly);
        else
@@ -5999,7 +6379,7 @@ static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
                    "%s: %d, %d", infotext,
                    ABS(lx - start_lx) + 1, ABS(ly - start_ly) + 1);
       }
-      else if (drawing_function == GADGET_ID_PICK_ELEMENT)
+      else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
        DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
                  "%s", getElementInfoText(Feld[lx][ly]));
       else
@@ -6016,7 +6396,7 @@ static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
        DeleteBrushFromCursor();
     }
   }
-  else if (drawing_function == GADGET_ID_PICK_ELEMENT)
+  else if (actual_drawing_function == GADGET_ID_PICK_ELEMENT)
   {
     if (id == GADGET_ID_AMOEBA_CONTENT)
       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
@@ -6027,9 +6407,12 @@ static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
     else if (id == GADGET_ID_CUSTOM_CONTENT)
       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
                "%s", getElementInfoText(custom_element.content[sx][sy]));
-    else if (id == GADGET_ID_CUSTOM_CHANGED)
+    else if (id == GADGET_ID_CUSTOM_CHANGE_TARGET)
       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
                "%s", getElementInfoText(custom_element.change.successor));
+    else if (id == GADGET_ID_CUSTOM_CHANGE_TRIGGER)
+      DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
+               "%s", getElementInfoText(custom_element.change.trigger));
     else if (id == GADGET_ID_RANDOM_BACKGROUND)
       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
                "%s", getElementInfoText(random_placement_background_element));
@@ -6053,9 +6436,12 @@ static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
     else if (id == GADGET_ID_CUSTOM_CONTENT)
       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
                "Custom element content position: %d, %d", sx, sy);
-    else if (id == GADGET_ID_CUSTOM_CHANGED)
+    else if (id == GADGET_ID_CUSTOM_CHANGE_TARGET)
       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
                "New element after change");
+    else if (id == GADGET_ID_CUSTOM_CHANGE_TRIGGER)
+      DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
+               "Other element triggering change");
     else if (id == GADGET_ID_RANDOM_BACKGROUND)
       DrawTextF(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2,
                "Random placement background");