rnd-20051123-1-src
[rocksndiamonds.git] / src / editor.c
index d05a5d72f93b6159108787dec92f9f0b984ba037..9e3f01e5554c2b13a0db5c701cd0948ef6205895 100644 (file)
                                         MINI_TILEX / 2)
 
 /* values for the settings windows */
-#define ED_SETTINGS_XSTART             (3 * MINI_TILEX / 2)
-#define ED_SETTINGS_YSTART             (MINI_TILEY * 10)
+#define ED_LEVEL_SETTINGS_XSTART       (3 * MINI_TILEX / 2)
+#define ED_LEVEL_SETTINGS_YSTART       (5 * MINI_TILEY)
+
+#define ED_ELEMENT_SETTINGS_XSTART     (3 * MINI_TILEX / 2)
+#define ED_ELEMENT_SETTINGS_YSTART     (10 * MINI_TILEY)
 
 #define ED_XOFFSET_CHECKBOX            (ED_CHECKBUTTON_XSIZE +         \
                                         2 * ED_GADGET_DISTANCE)
 #define ED_SETTINGS_XOFFSET            ED_XOFFSET_CHECKBOX
 #define ED_SETTINGS_YOFFSET            (3 * MINI_TILEY / 2)
 
-#define ED_SETTINGS_XPOS(n)            (ED_SETTINGS_XSTART +           \
+#define ED_LEVEL_SETTINGS_XPOS(n)      (ED_LEVEL_SETTINGS_XSTART +     \
+                                        (n) * ED_SETTINGS_XOFFSET)
+#define ED_LEVEL_SETTINGS_YPOS(n)      (ED_LEVEL_SETTINGS_YSTART +     \
+                                        (n) * ED_SETTINGS_YOFFSET)
+
+#define ED_ELEMENT_SETTINGS_XPOS(n)    (ED_ELEMENT_SETTINGS_XSTART +   \
                                         (n) * ED_SETTINGS_XOFFSET)
-#define ED_SETTINGS_YPOS(n)            (ED_SETTINGS_YSTART +           \
+#define ED_ELEMENT_SETTINGS_YPOS(n)    (ED_ELEMENT_SETTINGS_YSTART +   \
                                         (n) * ED_SETTINGS_YOFFSET)
 
 #define ED_SETTINGS1_YPOS              MINI_TILEY
                                         (n) * ED_COUNTER_YDISTANCE - 2)
 
 /* values for element content drawing areas */
-#define ED_AREA_1X1_SETTINGS_XPOS(n)   (ED_SETTINGS_XPOS(n))
-#define ED_AREA_1X1_SETTINGS_YPOS(n)   (ED_SETTINGS_YPOS(n) +          \
+#define ED_AREA_1X1_SETTINGS_XPOS(n)   (ED_ELEMENT_SETTINGS_XPOS(n))
+#define ED_AREA_1X1_SETTINGS_YPOS(n)   (ED_ELEMENT_SETTINGS_YPOS(n) +  \
                                         ED_GADGET_DISTANCE)
 
-#define ED_AREA_3X3_SETTINGS_XPOS(n)   (ED_SETTINGS_XPOS(n))
-#define ED_AREA_3X3_SETTINGS_YPOS(n)   (ED_SETTINGS_YPOS(n) +          \
+#define ED_AREA_3X3_SETTINGS_XPOS(n)   (ED_ELEMENT_SETTINGS_XPOS(n))
+#define ED_AREA_3X3_SETTINGS_YPOS(n)   (ED_ELEMENT_SETTINGS_YPOS(n) +  \
                                         ED_GADGET_DISTANCE - MINI_TILEY)
 
 /* yamyam content */
 #define GADGET_ID_CHANGE_PLAYER                (GADGET_ID_SELECTBOX_FIRST + 19)
 #define GADGET_ID_CHANGE_PAGE          (GADGET_ID_SELECTBOX_FIRST + 20)
 #define GADGET_ID_CHANGE_REPLACE_WHEN  (GADGET_ID_SELECTBOX_FIRST + 21)
-#define GADGET_ID_SELECT_CHANGE_PAGE   (GADGET_ID_SELECTBOX_FIRST + 22)
-#define GADGET_ID_GROUP_CHOICE_MODE    (GADGET_ID_SELECTBOX_FIRST + 23)
+#define GADGET_ID_ACTION_TYPE          (GADGET_ID_SELECTBOX_FIRST + 22)
+#define GADGET_ID_ACTION_MODE          (GADGET_ID_SELECTBOX_FIRST + 23)
+#define GADGET_ID_ACTION_ARG           (GADGET_ID_SELECTBOX_FIRST + 24)
+#define GADGET_ID_SELECT_CHANGE_PAGE   (GADGET_ID_SELECTBOX_FIRST + 25)
+#define GADGET_ID_GROUP_CHOICE_MODE    (GADGET_ID_SELECTBOX_FIRST + 26)
 
 /* textbutton identifiers */
-#define GADGET_ID_TEXTBUTTON_FIRST     (GADGET_ID_SELECTBOX_FIRST + 24)
+#define GADGET_ID_TEXTBUTTON_FIRST     (GADGET_ID_SELECTBOX_FIRST + 27)
 
 #define GADGET_ID_PROPERTIES_INFO      (GADGET_ID_TEXTBUTTON_FIRST + 0)
 #define GADGET_ID_PROPERTIES_CONFIG    (GADGET_ID_TEXTBUTTON_FIRST + 1)
 #define GADGET_ID_RANDOM_PERCENTAGE    (GADGET_ID_CHECKBUTTON_FIRST + 0)
 #define GADGET_ID_RANDOM_QUANTITY      (GADGET_ID_CHECKBUTTON_FIRST + 1)
 #define GADGET_ID_RANDOM_RESTRICTED    (GADGET_ID_CHECKBUTTON_FIRST + 2)
-#define GADGET_ID_DOUBLE_SPEED         (GADGET_ID_CHECKBUTTON_FIRST + 3)
-#define GADGET_ID_GRAVITY              (GADGET_ID_CHECKBUTTON_FIRST + 4)
-#define GADGET_ID_STICK_ELEMENT                (GADGET_ID_CHECKBUTTON_FIRST + 5)
-#define GADGET_ID_EM_SLIPPERY_GEMS     (GADGET_ID_CHECKBUTTON_FIRST + 6)
-#define GADGET_ID_USE_SPRING_BUG       (GADGET_ID_CHECKBUTTON_FIRST + 7)
-#define GADGET_ID_GROW_INTO_DIGGABLE   (GADGET_ID_CHECKBUTTON_FIRST + 8)
+#define GADGET_ID_INITIAL_GRAVITY      (GADGET_ID_CHECKBUTTON_FIRST + 3)
+#define GADGET_ID_STICK_ELEMENT                (GADGET_ID_CHECKBUTTON_FIRST + 4)
+#define GADGET_ID_EM_SLIPPERY_GEMS     (GADGET_ID_CHECKBUTTON_FIRST + 5)
+#define GADGET_ID_USE_SPRING_BUG       (GADGET_ID_CHECKBUTTON_FIRST + 6)
+#define GADGET_ID_GROW_INTO_DIGGABLE   (GADGET_ID_CHECKBUTTON_FIRST + 7)
+#define GADGET_ID_DOUBLE_SPEED         (GADGET_ID_CHECKBUTTON_FIRST + 8)
 #define GADGET_ID_BLOCK_LAST_FIELD     (GADGET_ID_CHECKBUTTON_FIRST + 9)
 #define GADGET_ID_SP_BLOCK_LAST_FIELD  (GADGET_ID_CHECKBUTTON_FIRST + 10)
 #define GADGET_ID_INSTANT_RELOCATION   (GADGET_ID_CHECKBUTTON_FIRST + 11)
 #define GADGET_ID_CHANGE_USE_EXPLOSION (GADGET_ID_CHECKBUTTON_FIRST + 33)
 #define GADGET_ID_CHANGE_ONLY_COMPLETE (GADGET_ID_CHECKBUTTON_FIRST + 34)
 #define GADGET_ID_CHANGE_USE_RANDOM    (GADGET_ID_CHECKBUTTON_FIRST + 35)
-#define GADGET_ID_CHANGE_DELAY         (GADGET_ID_CHECKBUTTON_FIRST + 36)
-#define GADGET_ID_CHANGE_BY_DIRECT_ACT (GADGET_ID_CHECKBUTTON_FIRST + 37)
-#define GADGET_ID_CHANGE_BY_OTHER_ACT  (GADGET_ID_CHECKBUTTON_FIRST + 38)
+#define GADGET_ID_CHANGE_USE_ACTION    (GADGET_ID_CHECKBUTTON_FIRST + 36)
+#define GADGET_ID_CHANGE_DELAY         (GADGET_ID_CHECKBUTTON_FIRST + 37)
+#define GADGET_ID_CHANGE_BY_DIRECT_ACT (GADGET_ID_CHECKBUTTON_FIRST + 38)
+#define GADGET_ID_CHANGE_BY_OTHER_ACT  (GADGET_ID_CHECKBUTTON_FIRST + 39)
 
 /* gadgets for buttons in element list */
-#define GADGET_ID_ELEMENTLIST_FIRST    (GADGET_ID_CHECKBUTTON_FIRST + 39)
+#define GADGET_ID_ELEMENTLIST_FIRST    (GADGET_ID_CHECKBUTTON_FIRST + 40)
 #define GADGET_ID_ELEMENTLIST_LAST     (GADGET_ID_ELEMENTLIST_FIRST +  \
                                        ED_NUM_ELEMENTLIST_BUTTONS - 1)
 
 #define ED_SELECTBOX_ID_CHANGE_PLAYER          19
 #define ED_SELECTBOX_ID_CHANGE_PAGE            20
 #define ED_SELECTBOX_ID_CHANGE_REPLACE_WHEN    21
-#define ED_SELECTBOX_ID_SELECT_CHANGE_PAGE     22
-#define ED_SELECTBOX_ID_GROUP_CHOICE_MODE      23
+#define ED_SELECTBOX_ID_ACTION_TYPE            22
+#define ED_SELECTBOX_ID_ACTION_MODE            23
+#define ED_SELECTBOX_ID_ACTION_ARG             24
+#define ED_SELECTBOX_ID_SELECT_CHANGE_PAGE     25
+#define ED_SELECTBOX_ID_GROUP_CHOICE_MODE      26
 
-#define ED_NUM_SELECTBOX                       24
+#define ED_NUM_SELECTBOX                       27
 
 #define ED_SELECTBOX_ID_LEVEL_FIRST    ED_SELECTBOX_ID_TIME_OR_STEPS
 #define ED_SELECTBOX_ID_LEVEL_LAST     ED_SELECTBOX_ID_GAME_ENGINE_TYPE
 #define ED_GRAPHICBUTTON_ID_CHANGE_LAST   ED_GRAPHICBUTTON_ID_PASTE_CHANGE_PAGE
 
 /* values for checkbutton gadgets */
-#define ED_CHECKBUTTON_ID_DOUBLE_SPEED         0
-#define ED_CHECKBUTTON_ID_GRAVITY              1
-#define ED_CHECKBUTTON_ID_RANDOM_RESTRICTED    2
-#define ED_CHECKBUTTON_ID_STICK_ELEMENT                3
-#define ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS     4
-#define ED_CHECKBUTTON_ID_USE_SPRING_BUG       5
-#define ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE   6
+#define ED_CHECKBUTTON_ID_INITIAL_GRAVITY      0
+#define ED_CHECKBUTTON_ID_RANDOM_RESTRICTED    1
+#define ED_CHECKBUTTON_ID_STICK_ELEMENT                2
+#define ED_CHECKBUTTON_ID_EM_SLIPPERY_GEMS     3
+#define ED_CHECKBUTTON_ID_USE_SPRING_BUG       4
+#define ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE   5
+#define ED_CHECKBUTTON_ID_DOUBLE_SPEED         6
 #define ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD     7
 #define ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD  8
 #define ED_CHECKBUTTON_ID_INSTANT_RELOCATION   9
 #define ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT   34
 #define ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE 35
 #define ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM    36
+#define ED_CHECKBUTTON_ID_CHANGE_USE_ACTION    37
 
-#define ED_NUM_CHECKBUTTONS                    37
+#define ED_NUM_CHECKBUTTONS                    38
 
-#define ED_CHECKBUTTON_ID_LEVEL_FIRST  ED_CHECKBUTTON_ID_DOUBLE_SPEED
+#define ED_CHECKBUTTON_ID_LEVEL_FIRST  ED_CHECKBUTTON_ID_INITIAL_GRAVITY
 #define ED_CHECKBUTTON_ID_LEVEL_LAST   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 
 #define ED_CHECKBUTTON_ID_CUSTOM1_FIRST        ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC
 #define ED_CHECKBUTTON_ID_CUSTOM_LAST  ED_CHECKBUTTON_ID_CUSTOM2_LAST
 
 #define ED_CHECKBUTTON_ID_CHANGE_FIRST ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE
-#define ED_CHECKBUTTON_ID_CHANGE_LAST  ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM
+#define ED_CHECKBUTTON_ID_CHANGE_LAST  ED_CHECKBUTTON_ID_CHANGE_USE_ACTION
 
 /* values for radiobutton gadgets */
 #define ED_RADIOBUTTON_ID_PERCENTAGE   0
 
 /* values for elements with count for collecting */
 #define MIN_COLLECT_COUNT              0
-#define MAX_COLLECT_COUNT              100
+#define MAX_COLLECT_COUNT              255
 
 /* values for random placement */
 #define RANDOM_USE_PERCENTAGE          0
@@ -871,6 +887,9 @@ static struct
   char *text;
 } control_info[ED_NUM_CTRL_BUTTONS] =
 {
+  /* note: some additional characters are already reserved for "cheat mode"
+     shortcuts (":XYZ" style) -- for details, see "events.c" */
+
   { 's',       "draw single items"                     },
   { 'd',       "draw connected items"                  },
   { 'l',       "draw lines"                            },
@@ -925,7 +944,7 @@ static struct
   char *text_above, *text_left, *text_right;
 } counterbutton_info[ED_NUM_COUNTERBUTTONS] =
 {
-  /* ---------- level and editor settings ---------------------------------- */
+  /* ---------- current level number --------------------------------------- */
 
   {
     DX + 5 - SX,                       DY + 3 - SY,
@@ -935,8 +954,11 @@ static struct
     &level_nr,
     NULL,                              NULL, NULL
   },
+
+  /* ---------- level and editor settings ---------------------------------- */
+
   {
-    ED_SETTINGS_XPOS(0),               ED_COUNTER_YPOS(2),
+    ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(4),
     MIN_LEV_FIELDX,                    MAX_LEV_FIELDX,
     GADGET_ID_LEVEL_XSIZE_DOWN,                GADGET_ID_LEVEL_XSIZE_UP,
     GADGET_ID_LEVEL_XSIZE_TEXT,                GADGET_ID_NONE,
@@ -944,7 +966,7 @@ static struct
     "playfield size:",                 NULL, "width",
   },
   {
-    -1,                                        ED_COUNTER_YPOS(2),
+    -1,                                        ED_LEVEL_SETTINGS_YPOS(4),
     MIN_LEV_FIELDY,                    MAX_LEV_FIELDY,
     GADGET_ID_LEVEL_YSIZE_DOWN,                GADGET_ID_LEVEL_YSIZE_UP,
     GADGET_ID_LEVEL_YSIZE_TEXT,                GADGET_ID_LEVEL_XSIZE_UP,
@@ -952,15 +974,15 @@ static struct
     NULL,                              " ", "height",
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_COUNTER_YPOS(3),
+    ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(6),
     0,                                 999,
     GADGET_ID_LEVEL_GEMSLIMIT_DOWN,    GADGET_ID_LEVEL_GEMSLIMIT_UP,
     GADGET_ID_LEVEL_GEMSLIMIT_TEXT,    GADGET_ID_NONE,
     &level.gems_needed,
-    "number of gems to collect:",      NULL, NULL
+    NULL, "number of gems to collect:",        NULL
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_COUNTER_YPOS(4),
+    ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(8),
     0,                                 9999,
     GADGET_ID_LEVEL_TIMELIMIT_DOWN,    GADGET_ID_LEVEL_TIMELIMIT_UP,
     GADGET_ID_LEVEL_TIMELIMIT_TEXT,    GADGET_ID_NONE,
@@ -968,7 +990,7 @@ static struct
     "time or step limit to solve level:", NULL, NULL
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_COUNTER_YPOS(5),
+    ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(10),
     0,                                 255,
     GADGET_ID_LEVEL_TIMESCORE_DOWN,    GADGET_ID_LEVEL_TIMESCORE_UP,
     GADGET_ID_LEVEL_TIMESCORE_TEXT,    GADGET_ID_NONE,
@@ -976,7 +998,7 @@ static struct
     "score for each 10 sec/steps left:", NULL, NULL
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_COUNTER2_YPOS(8),
+    ED_LEVEL_SETTINGS_XPOS(0),         ED_COUNTER2_YPOS(8),
     1,                                 100,
     GADGET_ID_LEVEL_RANDOM_DOWN,       GADGET_ID_LEVEL_RANDOM_UP,
     GADGET_ID_LEVEL_RANDOM_TEXT,       GADGET_ID_NONE,
@@ -987,7 +1009,7 @@ static struct
   /* ---------- element settings: configure (various elements) ------------- */
 
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(0),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(0),
     MIN_SCORE,                         MAX_SCORE,
     GADGET_ID_ELEMENT_VALUE1_DOWN,     GADGET_ID_ELEMENT_VALUE1_UP,
     GADGET_ID_ELEMENT_VALUE1_TEXT,     GADGET_ID_NONE,
@@ -995,7 +1017,7 @@ static struct
     NULL,                              NULL, NULL
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(1),
     MIN_SCORE,                         MAX_SCORE,
     GADGET_ID_ELEMENT_VALUE2_DOWN,     GADGET_ID_ELEMENT_VALUE2_UP,
     GADGET_ID_ELEMENT_VALUE2_TEXT,     GADGET_ID_NONE,
@@ -1003,7 +1025,7 @@ static struct
     NULL,                              NULL, NULL
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(3),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(3),
     MIN_ELEMENT_CONTENTS,              MAX_ELEMENT_CONTENTS,
     GADGET_ID_YAMYAM_CONTENT_DOWN,     GADGET_ID_YAMYAM_CONTENT_UP,
     GADGET_ID_YAMYAM_CONTENT_TEXT,     GADGET_ID_NONE,
@@ -1011,7 +1033,7 @@ static struct
     NULL,                              NULL, "number of content areas"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(0),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(0),
     MIN_ENVELOPE_XSIZE,                        MAX_ENVELOPE_XSIZE,
     GADGET_ID_ENVELOPE_XSIZE_DOWN,     GADGET_ID_ENVELOPE_XSIZE_UP,
     GADGET_ID_ENVELOPE_XSIZE_TEXT,     GADGET_ID_NONE,
@@ -1019,7 +1041,7 @@ static struct
     NULL,                              NULL, "width",
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(0),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(0),
     MIN_ENVELOPE_YSIZE,                        MAX_ENVELOPE_YSIZE,
     GADGET_ID_ENVELOPE_YSIZE_DOWN,     GADGET_ID_ENVELOPE_YSIZE_UP,
     GADGET_ID_ENVELOPE_YSIZE_TEXT,     GADGET_ID_ENVELOPE_XSIZE_UP,
@@ -1030,7 +1052,7 @@ static struct
   /* ---------- element settings: configure 1 (custom elements) ------------ */
 
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(6),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(6),
     MIN_SCORE,                         MAX_SCORE,
     GADGET_ID_CUSTOM_SCORE_DOWN,       GADGET_ID_CUSTOM_SCORE_UP,
     GADGET_ID_CUSTOM_SCORE_TEXT,       GADGET_ID_NONE,
@@ -1038,7 +1060,7 @@ static struct
     NULL,                              "score", " "
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(6),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(6),
     MIN_COLLECT_COUNT,                 MAX_COLLECT_COUNT,
     GADGET_ID_CUSTOM_GEMCOUNT_DOWN,    GADGET_ID_CUSTOM_GEMCOUNT_UP,
     GADGET_ID_CUSTOM_GEMCOUNT_TEXT,    GADGET_ID_CUSTOM_SCORE_UP,
@@ -1046,7 +1068,7 @@ static struct
     NULL,                              "count", NULL
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(7),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(7),
     0,                                 255,
     GADGET_ID_PUSH_DELAY_FIX_DOWN,     GADGET_ID_PUSH_DELAY_FIX_UP,
     GADGET_ID_PUSH_DELAY_FIX_TEXT,     GADGET_ID_NONE,
@@ -1054,7 +1076,7 @@ static struct
     NULL,                              "push delay", NULL
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(7),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(7),
     0,                                 255,
     GADGET_ID_PUSH_DELAY_RND_DOWN,     GADGET_ID_PUSH_DELAY_RND_UP,
     GADGET_ID_PUSH_DELAY_RND_TEXT,     GADGET_ID_PUSH_DELAY_FIX_UP,
@@ -1062,7 +1084,7 @@ static struct
     NULL,                              "+random", NULL
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(8),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(8),
     0,                                 255,
     GADGET_ID_DROP_DELAY_FIX_DOWN,     GADGET_ID_DROP_DELAY_FIX_UP,
     GADGET_ID_DROP_DELAY_FIX_TEXT,     GADGET_ID_NONE,
@@ -1070,7 +1092,7 @@ static struct
     NULL,                              "drop delay", NULL
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(8),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(8),
     0,                                 255,
     GADGET_ID_DROP_DELAY_RND_DOWN,     GADGET_ID_DROP_DELAY_RND_UP,
     GADGET_ID_DROP_DELAY_RND_TEXT,     GADGET_ID_DROP_DELAY_FIX_UP,
@@ -1081,7 +1103,7 @@ static struct
   /* ---------- element settings: configure 2 (custom elements) ------------ */
 
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(5),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(5),
     0,                                 999,
     GADGET_ID_MOVE_DELAY_FIX_DOWN,     GADGET_ID_MOVE_DELAY_FIX_UP,
     GADGET_ID_MOVE_DELAY_FIX_TEXT,     GADGET_ID_NONE,
@@ -1089,7 +1111,7 @@ static struct
     NULL,                              "move delay", NULL
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(5),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(5),
     0,                                 999,
     GADGET_ID_MOVE_DELAY_RND_DOWN,     GADGET_ID_MOVE_DELAY_RND_UP,
     GADGET_ID_MOVE_DELAY_RND_TEXT,     GADGET_ID_MOVE_DELAY_FIX_UP,
@@ -1097,7 +1119,7 @@ static struct
     NULL,                              "+random", NULL
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(12),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(12),
     0,                                 255,
     GADGET_ID_EXPLOSION_DELAY_DOWN,    GADGET_ID_EXPLOSION_DELAY_UP,
     GADGET_ID_EXPLOSION_DELAY_TEXT,    GADGET_ID_NONE,
@@ -1105,7 +1127,7 @@ static struct
     NULL,                              "explosion delay", NULL
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(13),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(13),
     0,                                 255,
     GADGET_ID_IGNITION_DELAY_DOWN,     GADGET_ID_IGNITION_DELAY_UP,
     GADGET_ID_IGNITION_DELAY_TEXT,     GADGET_ID_NONE,
@@ -1116,7 +1138,7 @@ static struct
   /* ---------- element settings: configure (group elements) --------------- */
 
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(5),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(5),
     MIN_ELEMENTS_IN_GROUP,             MAX_ELEMENTS_IN_GROUP,
     GADGET_ID_GROUP_CONTENT_DOWN,      GADGET_ID_GROUP_CONTENT_UP,
     GADGET_ID_GROUP_CONTENT_TEXT,      GADGET_ID_NONE,
@@ -1127,7 +1149,7 @@ static struct
   /* ---------- element settings: advanced (custom elements) --------------- */
 
   {
-    ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(2),
+    ED_ELEMENT_SETTINGS_XPOS(2),       ED_ELEMENT_SETTINGS_YPOS(2),
     0,                                 999,
     GADGET_ID_CHANGE_DELAY_FIX_DOWN,   GADGET_ID_CHANGE_DELAY_FIX_UP,
     GADGET_ID_CHANGE_DELAY_FIX_TEXT,   GADGET_ID_NONE,
@@ -1135,7 +1157,7 @@ static struct
     NULL,                              "delay", NULL,
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(2),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(2),
     0,                                 999,
     GADGET_ID_CHANGE_DELAY_RND_DOWN,   GADGET_ID_CHANGE_DELAY_RND_UP,
     GADGET_ID_CHANGE_DELAY_RND_TEXT,   GADGET_ID_CHANGE_DELAY_FIX_UP,
@@ -1143,7 +1165,7 @@ static struct
     NULL,                              "+random", NULL
   },
   {
-    ED_SETTINGS_XPOS(3),               ED_SETTINGS_YPOS(12),
+    ED_ELEMENT_SETTINGS_XPOS(3),       ED_ELEMENT_SETTINGS_YPOS(12),
     0,                                 100,
     GADGET_ID_CHANGE_CONT_RND_DOWN,    GADGET_ID_CHANGE_CONT_RND_UP,
     GADGET_ID_CHANGE_CONT_RND_TEXT,    GADGET_ID_NONE,
@@ -1162,14 +1184,14 @@ static struct
 } textinput_info[ED_NUM_TEXTINPUT] =
 {
   {
-    ED_SETTINGS_XPOS(0),               ED_COUNTER_YPOS(0),
+    ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(0),
     GADGET_ID_LEVEL_NAME,
     MAX_LEVEL_NAME_LEN,
     level.name,
     "Title:", "Title"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_COUNTER_YPOS(1),
+    ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(2),
     GADGET_ID_LEVEL_AUTHOR,
     MAX_LEVEL_AUTHOR_LEN,
     level.author,
@@ -1194,7 +1216,7 @@ static struct
 } textarea_info[ED_NUM_TEXTAREAS] =
 {
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(2),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(2),
     GADGET_ID_ENVELOPE_INFO,
     MAX_ENVELOPE_XSIZE, MAX_ENVELOPE_YSIZE,
     NULL,
@@ -1212,8 +1234,8 @@ static struct ValueTextInfo options_time_or_steps[] =
 
 static struct ValueTextInfo options_game_engine_type[] =
 {
-  { GAME_ENGINE_TYPE_RND,      "RND"                           },
-  { GAME_ENGINE_TYPE_EM,       "EM"                            },
+  { GAME_ENGINE_TYPE_RND,      "Rocks'n'Diamonds"              },
+  { GAME_ENGINE_TYPE_EM,       "Emerald Mine"                  },
 
   { -1,                                NULL                            }
 };
@@ -1245,6 +1267,7 @@ static struct ValueTextInfo options_access_protected[] =
 
 static struct ValueTextInfo options_access_direction[] =
 {
+  { MV_NO_DIRECTIONS,          "no direction"                  },
   { MV_LEFT,                   "left"                          },
   { MV_RIGHT,                  "right"                         },
   { MV_UP,                     "up"                            },
@@ -1316,6 +1339,7 @@ static struct ValueTextInfo options_move_direction[] =
 
 static struct ValueTextInfo options_move_stepsize[] =
 {
+  { 0,                         "not moving"                    },
   { 1,                         "very slow"                     },
   { 2,                         "slow"                          },
   { 4,                         "normal"                        },
@@ -1409,28 +1433,30 @@ static struct ValueTextInfo options_change_direct_action[] =
 
   { CE_IMPACT,                 "impact (on something)"         },
   { CE_SMASHED,                        "smashed (from above)"          },
+  { CE_COUNT_AT_ZERO,          "CE count at zero"              },
 
   { -1,                                NULL                            }
 };
 
 static struct ValueTextInfo options_change_other_action[] =
 {
-  { CE_OTHER_GETS_TOUCHED,     "player touches"                },
-  { CE_OTHER_GETS_PRESSED,     "player presses"                },
-  { CE_OTHER_GETS_PUSHED,      "player pushes"                 },
-  { CE_OTHER_GETS_ENTERED,     "player enters"                 },
-  { CE_OTHER_GETS_LEFT,                "player leaves"                 },
-  { CE_OTHER_GETS_DIGGED,      "player digs"                   },
-  { CE_OTHER_GETS_COLLECTED,   "player collects"               },
-  { CE_OTHER_GETS_DROPPED,     "player drops/throws"           },
-  { CE_OTHER_IS_TOUCHING,      "touching"                      },
+  { CE_PLAYER_TOUCHES_X,       "player touches"                },
+  { CE_PLAYER_PRESSES_X,       "player presses"                },
+  { CE_PLAYER_PUSHES_X,                "player pushes"                 },
+  { CE_PLAYER_ENTERS_X,                "player enters"                 },
+  { CE_PLAYER_LEAVES_X,                "player leaves"                 },
+  { CE_PLAYER_DIGS_X,          "player digs"                   },
+  { CE_PLAYER_COLLECTS_X,      "player collects"               },
+  { CE_PLAYER_DROPS_X,         "player drops/throws"           },
+  { CE_TOUCHING_X,             "touching"                      },
 #if 1
-  { CE_OTHER_IS_HITTING,       "hitting"                       },
-  { CE_OTHER_GETS_HIT,         "hit by"                        },
+  { CE_HITTING_X,              "hitting"                       },
+  { CE_HIT_BY_X,               "hit by"                        },
 #endif
-  { CE_OTHER_IS_SWITCHING,     "switch of"                     },
-  { CE_OTHER_IS_CHANGING,      "change by page of"             },
-  { CE_OTHER_IS_EXPLODING,     "explosion of"                  },
+  { CE_SWITCH_OF_X,            "switch of"                     },
+  { CE_CHANGE_OF_X,            "change by page of"             },
+  { CE_EXPLOSION_OF_X,         "explosion of"                  },
+  { CE_COUNT_AT_ZERO_OF_X,     "CE count at zero of"           },
 
   { -1,                                NULL                            }
 };
@@ -1510,6 +1536,79 @@ static struct ValueTextInfo options_change_replace_when[] =
   { -1,                                NULL                            }
 };
 
+static struct ValueTextInfo options_action_type[] =
+{
+  { CA_NO_ACTION,              "no action"                     },
+  { CA_EXIT_PLAYER,            "exit player"                   },
+  { CA_KILL_PLAYER,            "kill player"                   },
+  { CA_RESTART_LEVEL,          "restart level"                 },
+  { CA_SHOW_ENVELOPE,          "show envelope"                 },
+  { CA_ADD_KEY,                        "add key"                       },
+  { CA_DEL_KEY,                        "remove key"                    },
+  { CA_SET_PLAYER_SPEED,       "set player speed"              },
+  { CA_SET_GEMS,               "set gems"                      },
+  { CA_SET_TIME,               "set time"                      },
+  { CA_SET_SCORE,              "set score"                     },
+  { CA_SET_CE_SCORE,           "set CE score"                  },
+  { CA_SET_CE_COUNT,           "set CE count"                  },
+  { CA_SET_DYNABOMB_NUMBER,    "set bomb number"               },
+  { CA_SET_DYNABOMB_SIZE,      "set bomb size"                 },
+  { CA_SET_DYNABOMB_POWER,     "set bomb power"                },
+  { CA_TOGGLE_PLAYER_GRAVITY,  "toggle gravity"                },
+  { CA_ENABLE_PLAYER_GRAVITY,  "enable gravity"                },
+  { CA_DISABLE_PLAYER_GRAVITY, "disable gravity"               },
+
+  { -1,                                NULL                            }
+};
+
+static struct ValueTextInfo options_action_mode[] =
+{
+  { CA_MODE_UNDEFINED,         " "                             },
+  { CA_MODE_ADD,               "+"                             },
+  { CA_MODE_SUBTRACT,          "-"                             },
+  { CA_MODE_MULTIPLY,          "*"                             },
+  { CA_MODE_DIVIDE,            "/"                             },
+  { CA_MODE_SET,               "="                             },
+
+  { -1,                                NULL                            }
+};
+
+static struct ValueTextInfo options_action_arg[] =
+{
+  { CA_ARG_PLAYER_HEADLINE,    "[player]"                      },
+  { CA_ARG_PLAYER_1,           "1"                             },
+  { CA_ARG_PLAYER_2,           "2"                             },
+  { CA_ARG_PLAYER_3,           "3"                             },
+  { CA_ARG_PLAYER_4,           "4"                             },
+  { CA_ARG_PLAYER_ANY,         "any"                           },
+  { CA_ARG_PLAYER_TRIGGER,     "trigger"                       },
+  { CA_ARG_UNDEFINED,          " "                             },
+  { CA_ARG_NUMBER_HEADLINE,    "[number]"                      },
+  { CA_ARG_0,                  "0"                             },
+  { CA_ARG_1,                  "1"                             },
+  { CA_ARG_2,                  "2"                             },
+  { CA_ARG_3,                  "3"                             },
+  { CA_ARG_4,                  "4"                             },
+  { CA_ARG_5,                  "5"                             },
+  { CA_ARG_10,                 "10"                            },
+  { CA_ARG_100,                        "100"                           },
+  { CA_ARG_1000,               "1000"                          },
+  { CA_ARG_UNDEFINED,          " "                             },
+  { CA_ARG_NUMBER_MIN,         "min"                           },
+  { CA_ARG_NUMBER_MAX,         "max"                           },
+  { CA_ARG_NUMBER_NORMAL,      "normal"                        },
+  { CA_ARG_NUMBER_RESET,       "reset"                         },
+  { CA_ARG_NUMBER_CE_SCORE,    "CE score"                      },
+  { CA_ARG_NUMBER_CE_COUNT,    "CE count"                      },
+  { CA_ARG_NUMBER_CE_DELAY,    "CE delay"                      },
+  { CA_ARG_UNDEFINED,          " "                             },
+  { CA_ARG_ELEMENT_HEADLINE,   "[element]"                     },
+  { CA_ARG_ELEMENT_TARGET,     "target"                        },
+  { CA_ARG_ELEMENT_TRIGGER,    "trigger"                       },
+
+  { -1,                                NULL                            }
+};
+
 static char options_change_page_strings[MAX_CHANGE_PAGES][10];
 static struct ValueTextInfo options_change_page[MAX_CHANGE_PAGES + 1] =
 {
@@ -1541,7 +1640,7 @@ static struct
   /* ---------- level and editor settings ---------------------------------- */
 
   {
-    -1,                                        ED_COUNTER_YPOS(4),
+    -1,                                        ED_LEVEL_SETTINGS_YPOS(8),
     GADGET_ID_TIME_OR_STEPS,           GADGET_ID_LEVEL_TIMELIMIT_UP,
     -1,
     options_time_or_steps,
@@ -1549,7 +1648,7 @@ static struct
     NULL, "(0 => no limit)",           "time or step limit"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_COUNTER_YPOS(6) + 8,
+    ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(5),
     GADGET_ID_GAME_ENGINE_TYPE,                GADGET_ID_NONE,
     -1,
     options_game_engine_type,
@@ -1560,7 +1659,7 @@ static struct
   /* ---------- element settings: configure 1 (custom elements) ----------- */
 
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(3),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(3),
     GADGET_ID_CUSTOM_ACCESS_TYPE,      GADGET_ID_NONE,
     -1,
     options_access_type,
@@ -1568,7 +1667,7 @@ static struct
     NULL, NULL,                                "type of access to this field"
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(3),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(3),
     GADGET_ID_CUSTOM_ACCESS_LAYER,     GADGET_ID_CUSTOM_ACCESS_TYPE,
     -1,
     options_access_layer,
@@ -1576,7 +1675,7 @@ static struct
     NULL, NULL,                                "layer of access for this field"
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(3),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(3),
     GADGET_ID_CUSTOM_ACCESS_PROTECTED, GADGET_ID_CUSTOM_ACCESS_LAYER,
     -1,
     options_access_protected,
@@ -1584,7 +1683,7 @@ static struct
     NULL, NULL,                                "protected access for this field"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(4),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(4),
     GADGET_ID_CUSTOM_ACCESS_DIRECTION, GADGET_ID_NONE,
     -1,
     options_access_direction,
@@ -1592,7 +1691,7 @@ static struct
     "from", NULL,                      "access direction for this field"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(5),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(5),
     GADGET_ID_CUSTOM_WALK_TO_ACTION,   GADGET_ID_NONE,
     -1,
     options_walk_to_action,
@@ -1603,7 +1702,7 @@ static struct
   /* ---------- element settings: configure 2 (custom elements) ----------- */
 
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(1),
     GADGET_ID_CUSTOM_MOVE_PATTERN,     GADGET_ID_NONE,
     -1,
     options_move_pattern,
@@ -1611,7 +1710,7 @@ static struct
     "can move", NULL,                  "element move pattern"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(2),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(2),
     GADGET_ID_CUSTOM_MOVE_DIRECTION,   GADGET_ID_NONE,
     -1,
     options_move_direction,
@@ -1619,7 +1718,7 @@ static struct
     "starts moving", NULL,             "initial element move direction"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(4),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(4),
     GADGET_ID_CUSTOM_MOVE_STEPSIZE,    GADGET_ID_NONE,
     -1,
     options_move_stepsize,
@@ -1627,7 +1726,7 @@ static struct
     "move/fall speed", NULL,           "speed of element movement"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(3),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(3),
     GADGET_ID_CUSTOM_MOVE_LEAVE_TYPE,  GADGET_ID_NONE,
     -1,
     options_move_leave_type,
@@ -1635,7 +1734,7 @@ static struct
     "can dig:    can", ":",            "leave behind or change element"
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(7),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(7),
     GADGET_ID_CUSTOM_SMASH_TARGETS,    GADGET_ID_CUSTOM_CAN_SMASH,
     -1,
     options_smash_targets,
@@ -1643,7 +1742,7 @@ static struct
     "can smash", NULL,                 "elements that can be smashed"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(8),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(8),
     GADGET_ID_CUSTOM_SLIPPERY_TYPE,    GADGET_ID_NONE,
     -1,
     options_slippery_type,
@@ -1651,7 +1750,7 @@ static struct
     "slippery", NULL,                  "where other elements fall down"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(9),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(9),
     GADGET_ID_CUSTOM_DEADLINESS,       GADGET_ID_NONE,
     -1,
     options_deadliness,
@@ -1659,7 +1758,7 @@ static struct
     "deadly when", NULL,               "deadliness of element"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(10),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(10),
     GADGET_ID_CUSTOM_EXPLOSION_TYPE,   GADGET_ID_NONE,
     -1,
     options_explosion_type,
@@ -1670,7 +1769,7 @@ static struct
   /* ---------- element settings: advanced (custom elements) --------------- */
 
   {
-    ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(3),
+    ED_ELEMENT_SETTINGS_XPOS(2),       ED_ELEMENT_SETTINGS_YPOS(3),
     GADGET_ID_CHANGE_TIME_UNITS,       GADGET_ID_NONE,
     -1,
     options_time_units,
@@ -1678,7 +1777,7 @@ static struct
     "delay time given in", NULL,       "delay time units for change"
   },
   {
-    ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(4),
+    ED_ELEMENT_SETTINGS_XPOS(2),       ED_ELEMENT_SETTINGS_YPOS(4),
     GADGET_ID_CHANGE_DIRECT_ACTION,    GADGET_ID_NONE,
     -1,
     options_change_direct_action,
@@ -1686,7 +1785,7 @@ static struct
     NULL, NULL,                                "type of direct action"
   },
   {
-    ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(5),
+    ED_ELEMENT_SETTINGS_XPOS(2),       ED_ELEMENT_SETTINGS_YPOS(5),
     GADGET_ID_CHANGE_OTHER_ACTION,     GADGET_ID_NONE,
     -1,
     options_change_other_action,
@@ -1694,7 +1793,7 @@ static struct
     NULL, "element:",                  "type of other element action"
   },
   {
-    ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(6),
+    ED_ELEMENT_SETTINGS_XPOS(2),       ED_ELEMENT_SETTINGS_YPOS(6),
     GADGET_ID_CHANGE_SIDE,             GADGET_ID_NONE,
     -1,
     options_change_trigger_side,
@@ -1702,7 +1801,7 @@ static struct
     "at", "side",                      "element side that causes change"
   },
   {
-    ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(7),
+    ED_ELEMENT_SETTINGS_XPOS(2),       ED_ELEMENT_SETTINGS_YPOS(7),
     GADGET_ID_CHANGE_PLAYER,           GADGET_ID_NONE,
     -1,
     options_change_trigger_player,
@@ -1710,7 +1809,7 @@ static struct
     "player:", " ",                    "player that causes change"
   },
   {
-    ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(7),
+    ED_ELEMENT_SETTINGS_XPOS(2),       ED_ELEMENT_SETTINGS_YPOS(7),
     GADGET_ID_CHANGE_PAGE,             GADGET_ID_CHANGE_PLAYER,
     -1,
     options_change_trigger_page,
@@ -1718,7 +1817,7 @@ static struct
     "page:", NULL,                     "change page that causes change"
   },
   {
-    ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(10),
+    ED_ELEMENT_SETTINGS_XPOS(2),       ED_ELEMENT_SETTINGS_YPOS(10),
     GADGET_ID_CHANGE_REPLACE_WHEN,     GADGET_ID_NONE,
     -1,
     options_change_replace_when,
@@ -1726,7 +1825,31 @@ static struct
     "replace when", NULL,              "which elements can be replaced"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(14),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(13),
+    GADGET_ID_ACTION_TYPE,             GADGET_ID_NONE,
+    -1,
+    options_action_type,
+    &custom_element_change.action_type,
+    NULL, NULL,                                "action on specified condition"
+  },
+  {
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(13),
+    GADGET_ID_ACTION_MODE,             GADGET_ID_ACTION_TYPE,
+    -1,
+    options_action_mode,
+    &custom_element_change.action_mode,
+    NULL, NULL,                                "action operator"
+  },
+  {
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(13),
+    GADGET_ID_ACTION_ARG,              GADGET_ID_ACTION_MODE,
+    -1,
+    options_action_arg,
+    &custom_element_change.action_arg,
+    NULL, NULL,                                "action parameter"
+  },
+  {
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(14),
     GADGET_ID_SELECT_CHANGE_PAGE,      GADGET_ID_NONE,
     3,
     options_change_page,
@@ -1737,7 +1860,7 @@ static struct
   /* ---------- element settings: configure (group elements) --------------- */
 
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(6),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(6),
     GADGET_ID_GROUP_CHOICE_MODE,       GADGET_ID_NONE,
     -1,
     options_group_choice_mode,
@@ -1758,69 +1881,69 @@ static struct
 {
 #if 1
   {
-    ED_SETTINGS_XPOS(0),               ED_COUNTER_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_COUNTER_YPOS(1),
     GADGET_ID_PROPERTIES_INFO,         GADGET_ID_NONE,
     8,                                 "Info",                 
     NULL, NULL,                                "Show information about element"
   },
   {
-    ED_SETTINGS_XPOS(0) + 124,         ED_COUNTER_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0) + 124, ED_COUNTER_YPOS(1),
     GADGET_ID_PROPERTIES_CONFIG,       GADGET_ID_NONE,
     8,                                 "Config",
     NULL, NULL,                                "Configure element properties"
   },
   {
-    ED_SETTINGS_XPOS(0) + 124,         ED_COUNTER_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0) + 124, ED_COUNTER_YPOS(1),
     GADGET_ID_PROPERTIES_CONFIG_1,     GADGET_ID_NONE,
     8,                                 "Config 1",
     NULL, NULL,                                "Configure custom element properties"
   },
   {
-    ED_SETTINGS_XPOS(0) + 248,         ED_COUNTER_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0) + 248, ED_COUNTER_YPOS(1),
     GADGET_ID_PROPERTIES_CONFIG_2,     GADGET_ID_NONE,
     8,                                 "Config 2",
     NULL, NULL,                                "Configure custom element properties"
   },
   {
-    ED_SETTINGS_XPOS(0) + 372,         ED_COUNTER_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0) + 372, ED_COUNTER_YPOS(1),
     GADGET_ID_PROPERTIES_CHANGE,       GADGET_ID_NONE,
     8,                                 "Change",
     NULL, NULL,                                "Custom element change configuration"
   },
 #else
   {
-    ED_SETTINGS_XPOS(0),               ED_COUNTER_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_COUNTER_YPOS(1),
     GADGET_ID_PROPERTIES_INFO,         GADGET_ID_NONE,
     11,                                        "Information",                  
     NULL, NULL,                                "Show information about element"
   },
   {
-    ED_SETTINGS_XPOS(0) + 166,         ED_COUNTER_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0) + 166, ED_COUNTER_YPOS(1),
     GADGET_ID_PROPERTIES_CONFIG,       GADGET_ID_NONE,
     11,                                        "Configure",
     NULL, NULL,                                "Configure element properties"
   },
   {
-    ED_SETTINGS_XPOS(0) + 332,         ED_COUNTER_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0) + 332, ED_COUNTER_YPOS(1),
     GADGET_ID_PROPERTIES_CHANGE,       GADGET_ID_NONE,
     11,                                        "Advanced",
     NULL, NULL,                                "Advanced element configuration"
   },
 #endif
   {
-    -1,                                        ED_SETTINGS_YPOS(2),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(2),
     GADGET_ID_SAVE_AS_TEMPLATE,                GADGET_ID_CUSTOM_USE_TEMPLATE,
     -1,                                        "Save",
     " ", "As Template",                        "Save current settings as new template"
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(14),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(14),
     GADGET_ID_ADD_CHANGE_PAGE,         GADGET_ID_PASTE_CHANGE_PAGE,
     -1,                                        "New",
     NULL, NULL,                                "Add new change page"
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(14),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(14),
     GADGET_ID_DEL_CHANGE_PAGE,         GADGET_ID_ADD_CHANGE_PAGE,
     -1,                                        "Delete",
     NULL, NULL,                                "Delete current change page"
@@ -1839,28 +1962,28 @@ static struct
 {
   {
     ED_BUTTON_MINUS_XPOS,              ED_BUTTON_COUNT_YPOS,
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(14),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(14),
     ED_BUTTON_COUNT_XSIZE,             ED_BUTTON_COUNT_YSIZE,
     GADGET_ID_PREV_CHANGE_PAGE,                GADGET_ID_NONE,
     NULL, NULL,                                "select previous change page"
   },
   {
     ED_BUTTON_PLUS_XPOS,               ED_BUTTON_COUNT_YPOS,
-    -1,                                        ED_SETTINGS_YPOS(14),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(14),
     ED_BUTTON_COUNT_XSIZE,             ED_BUTTON_COUNT_YSIZE,
     GADGET_ID_NEXT_CHANGE_PAGE,                GADGET_ID_SELECT_CHANGE_PAGE,
     NULL, "change page",               "select next change page"
   },
   {
     ED_COPY_CHANGE_PAGE_XPOS,          ED_COPY_CHANGE_PAGE_YPOS,
-    -1,                                        ED_SETTINGS_YPOS(14),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(14),
     ED_BUTTON_COUNT_XSIZE,             ED_BUTTON_COUNT_YSIZE,
     GADGET_ID_COPY_CHANGE_PAGE,                GADGET_ID_NEXT_CHANGE_PAGE,
     " ", NULL,                         "copy settings from this change page"
   },
   {
     ED_PASTE_CHANGE_PAGE_XPOS,         ED_PASTE_CHANGE_PAGE_YPOS,
-    -1,                                        ED_SETTINGS_YPOS(14),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(14),
     ED_BUTTON_COUNT_XSIZE,             ED_BUTTON_COUNT_YSIZE,
     GADGET_ID_PASTE_CHANGE_PAGE,       GADGET_ID_COPY_CHANGE_PAGE,
     NULL, NULL,                                "paste settings to this change page"
@@ -1988,19 +2111,14 @@ static struct
   /* ---------- level and editor settings ---------------------------------- */
 
   {
-    ED_SETTINGS_XPOS(0),               ED_COUNTER_YPOS(6) - MINI_TILEY,
-    GADGET_ID_DOUBLE_SPEED,            GADGET_ID_NONE,
-    &level.double_speed,
-    NULL, "double speed movement",     "set movement speed of player"
-  },
-  {
-    -1,                                        ED_COUNTER_YPOS(6) - MINI_TILEY,
-    GADGET_ID_GRAVITY,                 GADGET_ID_DOUBLE_SPEED,
+    ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(11),
+    GADGET_ID_INITIAL_GRAVITY,         GADGET_ID_NONE,
     &level.initial_gravity,
-    " ", "gravity",                    "set level gravity"
+    NULL,
+    "initial gravity",                 "set initial level gravity"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_COUNTER2_YPOS(9) - MINI_TILEY,
+    ED_LEVEL_SETTINGS_XPOS(0),         ED_COUNTER2_YPOS(9) - MINI_TILEY,
     GADGET_ID_RANDOM_RESTRICTED,       GADGET_ID_NONE,
     &random_placement_background_restricted,
     NULL,
@@ -2010,77 +2128,84 @@ static struct
   /* ---------- element settings: configure (various elements) ------------- */
 
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(0),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(0),
     GADGET_ID_STICK_ELEMENT,           GADGET_ID_NONE,
     &stick_element_properties_window,
     NULL,
     "stick this screen to edit content","stick this screen to edit content"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(1),
     GADGET_ID_EM_SLIPPERY_GEMS,                GADGET_ID_NONE,
     &level.em_slippery_gems,
     NULL,
     "slip down from certain flat walls","use EM style slipping behaviour"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(1),
     GADGET_ID_USE_SPRING_BUG,          GADGET_ID_NONE,
     &level.use_spring_bug,
     NULL,
     "use spring pushing bug",          "use odd spring pushing behaviour"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(0),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(0),
     GADGET_ID_GROW_INTO_DIGGABLE,      GADGET_ID_NONE,
     &level.grow_into_diggable,
     NULL,
     "can grow into anything diggable", "grow into more than just sand"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(4),
+    GADGET_ID_DOUBLE_SPEED,            GADGET_ID_NONE,
+    &level.double_speed,
+    NULL,
+    "double speed movement",           "set initial movement speed of player"
+  },
+  {
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(1),
     GADGET_ID_BLOCK_LAST_FIELD,                GADGET_ID_NONE,
     &level.block_last_field,
     NULL,
     "block last field when moving",    "player blocks last field when moving"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(1),
     GADGET_ID_SP_BLOCK_LAST_FIELD,     GADGET_ID_NONE,
     &level.sp_block_last_field,
     NULL,
     "block last field when moving",    "player blocks last field when moving"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(2),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(2),
     GADGET_ID_INSTANT_RELOCATION,      GADGET_ID_NONE,
     &level.instant_relocation,
     NULL,
     "no scrolling when relocating",    "player gets relocated without delay"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(3),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(3),
     GADGET_ID_CAN_PASS_TO_WALKABLE,    GADGET_ID_NONE,
     &level.can_pass_to_walkable,
     NULL,
     "can pass to walkable element",    "player can pass to empty or walkable"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(0),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(0),
     GADGET_ID_CAN_FALL_INTO_ACID,      GADGET_ID_NONE,
     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
     NULL,
     "can fall into acid (with gravity)","player can fall into acid pool"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(0),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(0),
     GADGET_ID_CAN_MOVE_INTO_ACID,      GADGET_ID_NONE,
     &custom_element_properties[EP_CAN_MOVE_INTO_ACID],
     NULL,
     "can move into acid",              "element can move into acid pool"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(1),
     GADGET_ID_DONT_COLLIDE_WITH,       GADGET_ID_NONE,
     &custom_element_properties[EP_DONT_COLLIDE_WITH],
     NULL,
@@ -2090,7 +2215,7 @@ static struct
   /* ---------- element settings: configure 1 (custom elements) ----------- */
 
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(1),
     GADGET_ID_CUSTOM_USE_GRAPHIC,      GADGET_ID_NONE,
     &custom_element.use_gfx_element,
 
@@ -2102,31 +2227,31 @@ static struct
 #endif
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(2),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(2),
     GADGET_ID_CUSTOM_USE_TEMPLATE,     GADGET_ID_NONE,
     &level.use_custom_template,
     NULL, "use template",              "use template for custom properties"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(3),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(3),
     GADGET_ID_CUSTOM_ACCESSIBLE,       GADGET_ID_NONE,
     &custom_element_properties[EP_ACCESSIBLE],
     NULL, NULL,                                "player can walk to or pass this field"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(10),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(10),
     GADGET_ID_CUSTOM_GRAV_REACHABLE,   GADGET_ID_NONE,
     &custom_element_properties[EP_GRAVITY_REACHABLE],
     NULL, "reachable despite gravity", "player can walk/dig despite gravity"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(5),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(5),
     GADGET_ID_CUSTOM_WALK_TO_OBJECT,   GADGET_ID_NONE,
     &custom_element_properties[EP_WALK_TO_OBJECT],
     NULL, NULL,                                "player can dig/collect/push element"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(9),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(9),
     GADGET_ID_CUSTOM_INDESTRUCTIBLE,   GADGET_ID_NONE,
     &custom_element_properties[EP_INDESTRUCTIBLE],
     NULL, "indestructible",            "element is indestructible"
@@ -2135,55 +2260,55 @@ static struct
   /* ---------- element settings: configure 2 (custom elements) ----------- */
 
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(1),
     GADGET_ID_CUSTOM_CAN_MOVE,         GADGET_ID_NONE,
     &custom_element_properties[EP_CAN_MOVE],
     NULL, NULL,                                "element can move with some pattern"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(7),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(7),
     GADGET_ID_CUSTOM_CAN_FALL,         GADGET_ID_NONE,
     &custom_element_properties[EP_CAN_FALL],
     NULL, "can fall",                  "element can fall down"
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(7),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(7),
     GADGET_ID_CUSTOM_CAN_SMASH,                GADGET_ID_CUSTOM_CAN_FALL,
     &custom_element_properties[EP_CAN_SMASH],
     " ", NULL,                         "element can smash other elements"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(8),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(8),
     GADGET_ID_CUSTOM_SLIPPERY,         GADGET_ID_NONE,
     &custom_element_properties[EP_SLIPPERY],
     NULL, NULL,                                "other elements can fall down from it"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(9),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(9),
     GADGET_ID_CUSTOM_DEADLY,           GADGET_ID_NONE,
     &custom_element_properties[EP_DEADLY],
     NULL, NULL,                                "element can kill the player"
   },
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(10),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(10),
     GADGET_ID_CUSTOM_CAN_EXPLODE,      GADGET_ID_NONE,
     &custom_element_properties[EP_CAN_EXPLODE],
     NULL, NULL,                                "element can explode"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(11),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(11),
     GADGET_ID_CUSTOM_EXPLODE_FIRE,     GADGET_ID_NONE,
     &custom_element_properties[EP_EXPLODES_BY_FIRE],
     NULL, "by fire",                   "element can explode by fire/explosion"
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(11),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(11),
     GADGET_ID_CUSTOM_EXPLODE_SMASH,    GADGET_ID_CUSTOM_EXPLODE_FIRE,
     &custom_element_properties[EP_EXPLODES_SMASHED],
     " ", "smashed",                    "element can explode when smashed"
   },
   {
-    -1,                                        ED_SETTINGS_YPOS(11),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(11),
     GADGET_ID_CUSTOM_EXPLODE_IMPACT,   GADGET_ID_CUSTOM_EXPLODE_SMASH,
     &custom_element_properties[EP_EXPLODES_IMPACT],
     " ", "impact",                     "element can explode on impact"
@@ -2192,53 +2317,59 @@ static struct
   /* ---------- element settings: advanced (custom elements) --------------- */
 
   {
-    ED_SETTINGS_XPOS(0),               ED_SETTINGS_YPOS(1),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(1),
     GADGET_ID_CUSTOM_CAN_CHANGE,       GADGET_ID_NONE,
     &custom_element_change.can_change,
-    NULL, "element changes to:",       "element can change to other element"
+    NULL, "element changes to:",       "change element on specified condition"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(2),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(2),
     GADGET_ID_CHANGE_DELAY,            GADGET_ID_NONE,
     &custom_element_change_events[CE_DELAY],
     NULL, NULL,                                "element changes after delay"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(4),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(4),
     GADGET_ID_CHANGE_BY_DIRECT_ACT,    GADGET_ID_NONE,
     &custom_element_change_events[CE_BY_DIRECT_ACTION],
     NULL, NULL,                                "element changes by direct action"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(5),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(5),
     GADGET_ID_CHANGE_BY_OTHER_ACT,     GADGET_ID_NONE,
     &custom_element_change_events[CE_BY_OTHER_ACTION],
     NULL, NULL,                                "element changes by other element"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(8),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(8),
     GADGET_ID_CHANGE_USE_EXPLOSION,    GADGET_ID_NONE,
     &custom_element_change.explode,
     NULL, "explode instead of change", "element explodes instead of change"
   },
   {
-    ED_SETTINGS_XPOS(1),               ED_SETTINGS_YPOS(9),
+    ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(9),
     GADGET_ID_CHANGE_USE_CONTENT,      GADGET_ID_NONE,
     &custom_element_change.use_target_content,
     NULL, "use extended change target:","element changes to more elements"
   },
   {
-    ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(11),
+    ED_ELEMENT_SETTINGS_XPOS(2),       ED_ELEMENT_SETTINGS_YPOS(11),
     GADGET_ID_CHANGE_ONLY_COMPLETE,    GADGET_ID_NONE,
     &custom_element_change.only_if_complete,
     NULL, "replace all or nothing",    "only replace when all can be changed"
   },
   {
-    ED_SETTINGS_XPOS(2),               ED_SETTINGS_YPOS(12),
+    ED_ELEMENT_SETTINGS_XPOS(2),       ED_ELEMENT_SETTINGS_YPOS(12),
     GADGET_ID_CHANGE_USE_RANDOM,       GADGET_ID_NONE,
     &custom_element_change.use_random_replace,
     NULL, NULL,                                "use percentage for random replace"
   },
+  {
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(13),
+    GADGET_ID_CHANGE_USE_ACTION,       GADGET_ID_NONE,
+    &custom_element_change.use_action,
+    NULL, NULL,                                "execute action on specified condition"
+  },
 };
 
 static struct
@@ -2448,7 +2579,7 @@ static struct
   /* ---------- random background (for random painting) -------------------- */
 
   {
-    -1,                                        ED_SETTINGS_YPOS(14),
+    -1,                                        ED_ELEMENT_SETTINGS_YPOS(14),
     1, 1,
     GADGET_ID_RANDOM_BACKGROUND,       GADGET_ID_RANDOM_RESTRICTED,
     NULL, NULL,                                NULL
@@ -2475,6 +2606,7 @@ static int new_element1 = EL_WALL;
 static int new_element2 = EL_EMPTY;
 static int new_element3 = EL_SAND;
 
+#define IS_VALID_BUTTON(button) (button >= 1 && button <= 3)
 #define BUTTON_ELEMENT(button) ((button) == 1 ? new_element1 : \
                                (button) == 2 ? new_element2 : \
                                (button) == 3 ? new_element3 : EL_EMPTY)
@@ -2705,20 +2837,20 @@ static int editor_hl_emerald_mine_club[] =
 
 static int editor_el_emerald_mine_club[] =
 {
-  EL_EM_KEY_5,
-  EL_EM_KEY_6,
-  EL_EM_KEY_7,
-  EL_EM_KEY_8,
+  EL_EMC_KEY_5,
+  EL_EMC_KEY_6,
+  EL_EMC_KEY_7,
+  EL_EMC_KEY_8,
 
-  EL_EM_GATE_5,
-  EL_EM_GATE_6,
-  EL_EM_GATE_7,
-  EL_EM_GATE_8,
+  EL_EMC_GATE_5,
+  EL_EMC_GATE_6,
+  EL_EMC_GATE_7,
+  EL_EMC_GATE_8,
 
-  EL_EM_GATE_5_GRAY,
-  EL_EM_GATE_6_GRAY,
-  EL_EM_GATE_7_GRAY,
-  EL_EM_GATE_8_GRAY,
+  EL_EMC_GATE_5_GRAY,
+  EL_EMC_GATE_6_GRAY,
+  EL_EMC_GATE_7_GRAY,
+  EL_EMC_GATE_8_GRAY,
 
   EL_EMC_STEELWALL_1,
   EL_EMC_STEELWALL_2,
@@ -2750,10 +2882,18 @@ static int editor_el_emerald_mine_club[] =
   EL_EMC_WALL_11,
   EL_EMC_WALL_12,
 
+#if RELEASE_311
+  EL_EMPTY,
+#else
   EL_EMC_ANDROID,
+#endif
   EL_BALLOON,
   EL_BALLOON_SWITCH_ANY,
+#if RELEASE_311
+  EL_EMPTY,
+#else
   EL_BALLOON_SWITCH_NONE,
+#endif
 
   EL_BALLOON_SWITCH_LEFT,
   EL_BALLOON_SWITCH_RIGHT,
@@ -2762,16 +2902,34 @@ static int editor_el_emerald_mine_club[] =
 
   EL_EMC_GRASS,
   EL_EMC_PLANT,
+#if RELEASE_311
+  EL_EMPTY,
+  EL_EMPTY,
+#else
   EL_EMC_LENSES,
   EL_EMC_MAGNIFIER,
+#endif
 
+#if RELEASE_311
+  EL_EMPTY,
+  EL_EMPTY,
+#else
   EL_EMC_MAGIC_BALL,
   EL_EMC_MAGIC_BALL_SWITCH,
+#endif
   EL_SPRING,
+#if RELEASE_311
+  EL_EMPTY,
+#else
   EL_EMC_SPRING_BUMPER,
+#endif
 
-  EL_EMC_DRIPPER,
+#if RELEASE_311
   EL_EMPTY,
+#else
+  EL_EMC_DRIPPER,
+#endif
+  EL_EMC_FAKE_GRASS,
   EL_EMPTY,
   EL_EMPTY,
 };
@@ -4083,7 +4241,11 @@ static void ReinitializeElementList()
 
   checked_free(editor_elements);
 
+#if 0
   if (!initialized)
+#else
+  /* reload user defined element list for each invocation of level editor */
+#endif
   {
     /* initialize optional user defined element list */
     LoadUserDefinedEditorElementList(&editor_el_user_defined_ptr,
@@ -6151,24 +6313,26 @@ static void CopyCustomElementPropertiesToEditor(int element)
      HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
      HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
      HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
+     HAS_CHANGE_EVENT(element, CE_COUNT_AT_ZERO) ? CE_COUNT_AT_ZERO :
      custom_element_change.direct_action);
 
   /* set "change by other element action" selectbox help value */
   custom_element_change.other_action =
-    (HAS_CHANGE_EVENT(element, CE_OTHER_GETS_TOUCHED) ? CE_OTHER_GETS_TOUCHED :
-     HAS_CHANGE_EVENT(element, CE_OTHER_GETS_PRESSED) ? CE_OTHER_GETS_PRESSED :
-     HAS_CHANGE_EVENT(element, CE_OTHER_GETS_PUSHED) ? CE_OTHER_GETS_PUSHED :
-     HAS_CHANGE_EVENT(element, CE_OTHER_GETS_ENTERED) ? CE_OTHER_GETS_ENTERED :
-     HAS_CHANGE_EVENT(element, CE_OTHER_GETS_LEFT) ? CE_OTHER_GETS_LEFT :
-     HAS_CHANGE_EVENT(element, CE_OTHER_GETS_DIGGED) ? CE_OTHER_GETS_DIGGED :
-     HAS_CHANGE_EVENT(element, CE_OTHER_GETS_COLLECTED) ? CE_OTHER_GETS_COLLECTED :
-     HAS_CHANGE_EVENT(element, CE_OTHER_GETS_DROPPED) ? CE_OTHER_GETS_DROPPED :
-     HAS_CHANGE_EVENT(element, CE_OTHER_IS_TOUCHING) ? CE_OTHER_IS_TOUCHING :
-     HAS_CHANGE_EVENT(element, CE_OTHER_IS_HITTING) ? CE_OTHER_IS_HITTING :
-     HAS_CHANGE_EVENT(element, CE_OTHER_GETS_HIT) ? CE_OTHER_GETS_HIT :
-     HAS_CHANGE_EVENT(element, CE_OTHER_IS_SWITCHING) ? CE_OTHER_IS_SWITCHING :
-     HAS_CHANGE_EVENT(element, CE_OTHER_IS_CHANGING) ? CE_OTHER_IS_CHANGING :
-     HAS_CHANGE_EVENT(element, CE_OTHER_IS_EXPLODING) ? CE_OTHER_IS_EXPLODING :
+    (HAS_CHANGE_EVENT(element, CE_PLAYER_TOUCHES_X) ? CE_PLAYER_TOUCHES_X :
+     HAS_CHANGE_EVENT(element, CE_PLAYER_PRESSES_X) ? CE_PLAYER_PRESSES_X :
+     HAS_CHANGE_EVENT(element, CE_PLAYER_PUSHES_X) ? CE_PLAYER_PUSHES_X :
+     HAS_CHANGE_EVENT(element, CE_PLAYER_ENTERS_X) ? CE_PLAYER_ENTERS_X :
+     HAS_CHANGE_EVENT(element, CE_PLAYER_LEAVES_X) ? CE_PLAYER_LEAVES_X :
+     HAS_CHANGE_EVENT(element, CE_PLAYER_DIGS_X) ? CE_PLAYER_DIGS_X :
+     HAS_CHANGE_EVENT(element, CE_PLAYER_COLLECTS_X) ? CE_PLAYER_COLLECTS_X :
+     HAS_CHANGE_EVENT(element, CE_PLAYER_DROPS_X) ? CE_PLAYER_DROPS_X :
+     HAS_CHANGE_EVENT(element, CE_TOUCHING_X) ? CE_TOUCHING_X :
+     HAS_CHANGE_EVENT(element, CE_HITTING_X) ? CE_HITTING_X :
+     HAS_CHANGE_EVENT(element, CE_HIT_BY_X) ? CE_HIT_BY_X :
+     HAS_CHANGE_EVENT(element, CE_SWITCH_OF_X) ? CE_SWITCH_OF_X :
+     HAS_CHANGE_EVENT(element, CE_CHANGE_OF_X) ? CE_CHANGE_OF_X :
+     HAS_CHANGE_EVENT(element, CE_EXPLOSION_OF_X) ? CE_EXPLOSION_OF_X :
+     HAS_CHANGE_EVENT(element, CE_COUNT_AT_ZERO_OF_X) ? CE_COUNT_AT_ZERO_OF_X :
      custom_element_change.other_action);
 }
 
@@ -6340,24 +6504,26 @@ static void CopyCustomElementPropertiesToGame(int element)
   custom_element_change_events[CE_BLOCKED] = FALSE;
   custom_element_change_events[CE_IMPACT] = FALSE;
   custom_element_change_events[CE_SMASHED] = FALSE;
+  custom_element_change_events[CE_COUNT_AT_ZERO] = FALSE;
   custom_element_change_events[custom_element_change.direct_action] =
     custom_element_change_events[CE_BY_DIRECT_ACTION];
 
   /* set other element action change event from checkbox and selectbox */
-  custom_element_change_events[CE_OTHER_GETS_TOUCHED] = FALSE;
-  custom_element_change_events[CE_OTHER_GETS_PRESSED] = FALSE;
-  custom_element_change_events[CE_OTHER_GETS_PUSHED] = FALSE;
-  custom_element_change_events[CE_OTHER_GETS_ENTERED] = FALSE;
-  custom_element_change_events[CE_OTHER_GETS_LEFT] = FALSE;
-  custom_element_change_events[CE_OTHER_GETS_DIGGED] = FALSE;
-  custom_element_change_events[CE_OTHER_GETS_COLLECTED] = FALSE;
-  custom_element_change_events[CE_OTHER_GETS_DROPPED] = FALSE;
-  custom_element_change_events[CE_OTHER_IS_TOUCHING] = FALSE;
-  custom_element_change_events[CE_OTHER_IS_HITTING] = FALSE;
-  custom_element_change_events[CE_OTHER_GETS_HIT] = FALSE;
-  custom_element_change_events[CE_OTHER_IS_SWITCHING] = FALSE;
-  custom_element_change_events[CE_OTHER_IS_CHANGING] = FALSE;
-  custom_element_change_events[CE_OTHER_IS_EXPLODING] = FALSE;
+  custom_element_change_events[CE_PLAYER_TOUCHES_X] = FALSE;
+  custom_element_change_events[CE_PLAYER_PRESSES_X] = FALSE;
+  custom_element_change_events[CE_PLAYER_PUSHES_X] = FALSE;
+  custom_element_change_events[CE_PLAYER_ENTERS_X] = FALSE;
+  custom_element_change_events[CE_PLAYER_LEAVES_X] = FALSE;
+  custom_element_change_events[CE_PLAYER_DIGS_X] = FALSE;
+  custom_element_change_events[CE_PLAYER_COLLECTS_X] = FALSE;
+  custom_element_change_events[CE_PLAYER_DROPS_X] = FALSE;
+  custom_element_change_events[CE_TOUCHING_X] = FALSE;
+  custom_element_change_events[CE_HITTING_X] = FALSE;
+  custom_element_change_events[CE_HIT_BY_X] = FALSE;
+  custom_element_change_events[CE_SWITCH_OF_X] = FALSE;
+  custom_element_change_events[CE_CHANGE_OF_X] = FALSE;
+  custom_element_change_events[CE_EXPLOSION_OF_X] = FALSE;
+  custom_element_change_events[CE_COUNT_AT_ZERO_OF_X] = FALSE;
   custom_element_change_events[custom_element_change.other_action] =
     custom_element_change_events[CE_BY_OTHER_ACTION];
 
@@ -6884,8 +7050,8 @@ char *getElementDescriptionFilename(int element)
 static boolean PrintInfoText(char *text, int font_nr, int start_line)
 {
   int font_height = getFontHeight(font_nr);
-  int pad_x = ED_SETTINGS_XPOS(0);
-  int pad_y = ED_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
+  int pad_x = ED_ELEMENT_SETTINGS_XPOS(0);
+  int pad_y = ED_ELEMENT_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;
@@ -6905,8 +7071,8 @@ static int PrintElementDescriptionFromFile(char *filename, int start_line)
   int font_nr = FONT_TEXT_2;
   int font_width = getFontWidth(font_nr);
   int font_height = getFontHeight(font_nr);
-  int pad_x = ED_SETTINGS_XPOS(0);
-  int pad_y = ED_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
+  int pad_x = ED_ELEMENT_SETTINGS_XPOS(0);
+  int pad_y = ED_ELEMENT_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
   int sx = SX + pad_x;
   int sy = SY + pad_y + start_line * font_height;
   int max_chars_per_line = (SXSIZE - 2 * pad_x) / font_width;
@@ -6923,8 +7089,8 @@ static int PrintElementDescriptionFromFile(char *filename, int start_line)
   int font_nr = FONT_TEXT_2;
   int font_width = getFontWidth(font_nr);
   int font_height = getFontHeight(font_nr);
-  int pad_x = ED_SETTINGS_XPOS(0);
-  int pad_y = ED_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
+  int pad_x = ED_ELEMENT_SETTINGS_XPOS(0);
+  int pad_y = ED_ELEMENT_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
   int sx = SX + pad_x;
   int sy = SY + pad_y;
   int max_chars_per_line = (SXSIZE - 2 * pad_x) / font_width;
@@ -7118,8 +7284,8 @@ static void DrawPropertiesInfo()
   int font2_nr = FONT_TEXT_2;
   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) + ED_BORDER_SIZE;
+  int pad_x = ED_ELEMENT_SETTINGS_XPOS(0);
+  int pad_y = ED_ELEMENT_SETTINGS_YPOS(0) + ED_BORDER_SIZE;
   int screen_line = 0;
   int i, x, y;
 
@@ -7262,10 +7428,10 @@ static struct
   { EL_EM_KEY_3_FILE,  &level.score[SC_KEY],           TEXT_COLLECTING },
   { EL_EM_KEY_4_FILE,  &level.score[SC_KEY],           TEXT_COLLECTING },
 #endif
-  { EL_EM_KEY_5,       &level.score[SC_KEY],           TEXT_COLLECTING },
-  { EL_EM_KEY_6,       &level.score[SC_KEY],           TEXT_COLLECTING },
-  { EL_EM_KEY_7,       &level.score[SC_KEY],           TEXT_COLLECTING },
-  { EL_EM_KEY_8,       &level.score[SC_KEY],           TEXT_COLLECTING },
+  { EL_EMC_KEY_5,      &level.score[SC_KEY],           TEXT_COLLECTING },
+  { EL_EMC_KEY_6,      &level.score[SC_KEY],           TEXT_COLLECTING },
+  { EL_EMC_KEY_7,      &level.score[SC_KEY],           TEXT_COLLECTING },
+  { EL_EMC_KEY_8,      &level.score[SC_KEY],           TEXT_COLLECTING },
   { EL_AMOEBA_WET,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
   { EL_AMOEBA_DRY,     &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
   { EL_AMOEBA_FULL,    &level.amoeba_speed,            TEXT_AMOEBA_SPEED },
@@ -7330,7 +7496,7 @@ static void DrawPropertiesConfig()
       int counter_id = ED_COUNTER_ID_ELEMENT_VALUE1 + num_element_counters;
 
       counterbutton_info[counter_id].y =
-       ED_SETTINGS_YPOS((HAS_CONTENT(properties_element) ? 1 : 0) +
+       ED_ELEMENT_SETTINGS_YPOS((HAS_CONTENT(properties_element) ? 1 : 0) +
                         (CAN_GROW(properties_element) ? 1 : 0) +
                         (COULD_MOVE_INTO_ACID(properties_element) ? 1 : 0) +
                         (MAYBE_DONT_COLLIDE_WITH(properties_element) ? 1 : 0)+
@@ -7373,6 +7539,7 @@ static void DrawPropertiesConfig()
                         ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD);
     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE);
+    MapCheckbuttonGadget(ED_CHECKBUTTON_ID_DOUBLE_SPEED);
   }
 
   if (IS_GEM(properties_element))
@@ -7385,9 +7552,9 @@ static void DrawPropertiesConfig()
   {
     /* set position for checkbutton for "can move into acid" */
     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].x =
-      ED_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
+      ED_ELEMENT_SETTINGS_XPOS(IS_CUSTOM_ELEMENT(properties_element) ? 1 : 0);
     checkbutton_info[ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID].y =
-      ED_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 6 :
+      ED_ELEMENT_SETTINGS_YPOS(IS_CUSTOM_ELEMENT(properties_element) ? 6 :
                       HAS_CONTENT(properties_element) ? 1 : 0);
 
     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID);
@@ -7402,7 +7569,7 @@ static void DrawPropertiesConfig()
   if (CAN_GROW(properties_element))
   {
     checkbutton_info[ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE].y =
-      ED_SETTINGS_YPOS(HAS_CONTENT(properties_element) ? 1 : 0);
+      ED_ELEMENT_SETTINGS_YPOS(HAS_CONTENT(properties_element) ? 1 : 0);
 
     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_GROW_INTO_DIGGABLE);
   }
@@ -7561,7 +7728,7 @@ static void DrawElementName(int x, int y, int 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_text_width = SXSIZE - x - ED_ELEMENT_SETTINGS_XPOS(0);
   int max_chars_per_line = max_text_width / font_width;
   char buffer[max_chars_per_line + 1];
 
@@ -7877,6 +8044,7 @@ static void SelectArea(int from_x, int from_y, int to_x, int to_y,
 #define CB_BRUSH_TO_LEVEL      2
 #define CB_DELETE_OLD_CURSOR   3
 #define CB_DUMP_BRUSH          4
+#define CB_DUMP_BRUSH_SMALL    5
 
 static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
                         int button, int mode)
@@ -7888,7 +8056,8 @@ static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
   int new_element = BUTTON_ELEMENT(button);
   int x, y;
 
-  if (mode == CB_DUMP_BRUSH)
+  if (mode == CB_DUMP_BRUSH ||
+      mode == CB_DUMP_BRUSH_SMALL)
   {
     if (!draw_with_brush)
     {
@@ -7935,10 +8104,12 @@ static void CopyBrushExt(int from_x, int from_y, int to_x, int to_y,
 
        if (IS_CUSTOM_ELEMENT(element))
          element_mapped = EL_CUSTOM_START;
-       else if (element > EL_ENVELOPE_4)
-         element_mapped = EL_CHAR_QUESTION;    /* change to EL_UNKNOWN ... */
+       else if (IS_GROUP_ELEMENT(element))
+         element_mapped = EL_GROUP_START;
+       else if (element >= NUM_FILE_ELEMENTS)
+         element_mapped = EL_UNKNOWN;
 
-       printf("`%03d", element_mapped);
+       printf("%c%03d", (mode == CB_DUMP_BRUSH ? '`' : 'ΒΈ'), element_mapped);
 #endif
       }
 
@@ -8067,6 +8238,11 @@ void DumpBrush()
   CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH);
 }
 
+void DumpBrush_Small()
+{
+  CopyBrushExt(0, 0, 0, 0, 0, CB_DUMP_BRUSH_SMALL);
+}
+
 static void FloodFill(int from_x, int from_y, int fill_element)
 {
   int i,x,y;
@@ -8396,8 +8572,13 @@ static void HandleDrawingAreas(struct GadgetInfo *gi)
   if (!started_inside_drawing_area)
     return;
 
+#if 1
+  if (!IS_VALID_BUTTON(button) && !button_release_event)
+    return;
+#else
   if (!button && !button_release_event)
     return;
+#endif
 
   /* automatically switch to 'single item' drawing mode, if needed */
   actual_drawing_function =
@@ -8694,7 +8875,7 @@ static void HandleCounterButtons(struct GadgetInfo *gi)
     if ((level_changed && pressed) || (!level_changed && released))
       return;
 
-    if (level_changed && !Request("Level has changed! Discard changes ?",
+    if (level_changed && !Request("Level has changed ! Discard changes ?",
                                  REQ_ASK))
     {
       if (gadget_id == counterbutton_info[counter_id].gadget_id_text)
@@ -8966,6 +9147,14 @@ static void HandleControlButtons(struct GadgetInfo *gi)
   int new_element = BUTTON_ELEMENT(button);
   int x, y;
 
+#if 0
+  /* MAKES PROBLEMS WITH ELEMENT LIST SCROLLBAR AND IS PROBABLY NOT NEEDED */
+  /* !!! CHECK WHAT HAPPENS WHEN MOUSE WHEEL IS USED OVER ELEMENT LIST !!! */
+
+  if (!IS_VALID_BUTTON(button))
+    return;
+#endif
+
   if (edit_mode == ED_MODE_DRAWING && drawing_function == GADGET_ID_TEXT)
     DrawLevelText(0, 0, 0, TEXT_END);
 
@@ -9273,13 +9462,18 @@ static void HandleControlButtons(struct GadgetInfo *gi)
 
        DrawCompleteVideoDisplay();
 
+       level_editor_test_game = TRUE;
+
+#if 1
+       StartGameActions(FALSE, setup.autorecord, NEW_RANDOMIZE);
+#else
        if (setup.autorecord)
          TapeStartRecording();
 
-       level_editor_test_game = TRUE;
        game_status = GAME_MODE_PLAYING;
 
        InitGame();
+#endif
       }
       break;
 
@@ -9710,7 +9904,7 @@ void RequestExitLevelEditor(boolean ask_if_level_has_changed)
 {
   if (!ask_if_level_has_changed ||
       !LevelChanged() ||
-      Request("Level has changed! Exit without saving ?",
+      Request("Level has changed ! Exit without saving ?",
              REQ_ASK | REQ_STAY_OPEN))
   {
 #if 1