rnd-20080126-1-src
[rocksndiamonds.git] / src / editor.c
index 0aec10894e1471f32089504e8226df566bef0294..bcb76d4f96acfa6089f6b04445fcd0bf9a8f5fc1 100644 (file)
 #define GADGET_ID_BLOCK_LAST_FIELD     (GADGET_ID_CHECKBUTTON_FIRST + 12)
 #define GADGET_ID_SP_BLOCK_LAST_FIELD  (GADGET_ID_CHECKBUTTON_FIRST + 13)
 #define GADGET_ID_INSTANT_RELOCATION   (GADGET_ID_CHECKBUTTON_FIRST + 14)
-#define GADGET_ID_USE_START_ELEMENT    (GADGET_ID_CHECKBUTTON_FIRST + 15)
-#define GADGET_ID_USE_ARTWORK_ELEMENT  (GADGET_ID_CHECKBUTTON_FIRST + 16)
-#define GADGET_ID_USE_EXPLOSION_ELEMENT        (GADGET_ID_CHECKBUTTON_FIRST + 17)
-#define GADGET_ID_INITIAL_GRAVITY      (GADGET_ID_CHECKBUTTON_FIRST + 18)
-#define GADGET_ID_CAN_PASS_TO_WALKABLE (GADGET_ID_CHECKBUTTON_FIRST + 19)
-#define GADGET_ID_CAN_FALL_INTO_ACID   (GADGET_ID_CHECKBUTTON_FIRST + 20)
-#define GADGET_ID_CAN_MOVE_INTO_ACID   (GADGET_ID_CHECKBUTTON_FIRST + 21)
-#define GADGET_ID_DONT_COLLIDE_WITH    (GADGET_ID_CHECKBUTTON_FIRST + 22)
-#define GADGET_ID_ENVELOPE_AUTOWRAP    (GADGET_ID_CHECKBUTTON_FIRST + 23)
-#define GADGET_ID_ENVELOPE_CENTERED    (GADGET_ID_CHECKBUTTON_FIRST + 24)
-#define GADGET_ID_CUSTOM_INDESTRUCTIBLE        (GADGET_ID_CHECKBUTTON_FIRST + 25)
-#define GADGET_ID_CUSTOM_CAN_EXPLODE   (GADGET_ID_CHECKBUTTON_FIRST + 26)
-#define GADGET_ID_CUSTOM_EXPLODE_FIRE  (GADGET_ID_CHECKBUTTON_FIRST + 27)
-#define GADGET_ID_CUSTOM_EXPLODE_SMASH (GADGET_ID_CHECKBUTTON_FIRST + 28)
-#define GADGET_ID_CUSTOM_EXPLODE_IMPACT        (GADGET_ID_CHECKBUTTON_FIRST + 29)
-#define GADGET_ID_CUSTOM_WALK_TO_OBJECT        (GADGET_ID_CHECKBUTTON_FIRST + 30)
-#define GADGET_ID_CUSTOM_DEADLY                (GADGET_ID_CHECKBUTTON_FIRST + 31)
-#define GADGET_ID_CUSTOM_CAN_MOVE      (GADGET_ID_CHECKBUTTON_FIRST + 32)
-#define GADGET_ID_CUSTOM_CAN_FALL      (GADGET_ID_CHECKBUTTON_FIRST + 33)
-#define GADGET_ID_CUSTOM_CAN_SMASH     (GADGET_ID_CHECKBUTTON_FIRST + 34)
-#define GADGET_ID_CUSTOM_SLIPPERY      (GADGET_ID_CHECKBUTTON_FIRST + 35)
-#define GADGET_ID_CUSTOM_ACCESSIBLE    (GADGET_ID_CHECKBUTTON_FIRST + 36)
-#define GADGET_ID_CUSTOM_GRAV_REACHABLE        (GADGET_ID_CHECKBUTTON_FIRST + 37)
-#define GADGET_ID_CUSTOM_USE_LAST_VALUE        (GADGET_ID_CHECKBUTTON_FIRST + 38)
-#define GADGET_ID_CUSTOM_USE_GRAPHIC   (GADGET_ID_CHECKBUTTON_FIRST + 39)
-#define GADGET_ID_CUSTOM_USE_TEMPLATE  (GADGET_ID_CHECKBUTTON_FIRST + 40)
-#define GADGET_ID_CUSTOM_CAN_CHANGE    (GADGET_ID_CHECKBUTTON_FIRST + 41)
-#define GADGET_ID_CHANGE_USE_CONTENT   (GADGET_ID_CHECKBUTTON_FIRST + 42)
-#define GADGET_ID_CHANGE_USE_EXPLOSION (GADGET_ID_CHECKBUTTON_FIRST + 43)
-#define GADGET_ID_CHANGE_ONLY_COMPLETE (GADGET_ID_CHECKBUTTON_FIRST + 44)
-#define GADGET_ID_CHANGE_USE_RANDOM    (GADGET_ID_CHECKBUTTON_FIRST + 45)
-#define GADGET_ID_CHANGE_HAS_ACTION    (GADGET_ID_CHECKBUTTON_FIRST + 46)
-#define GADGET_ID_CHANGE_DELAY         (GADGET_ID_CHECKBUTTON_FIRST + 47)
-#define GADGET_ID_CHANGE_BY_DIRECT_ACT (GADGET_ID_CHECKBUTTON_FIRST + 48)
-#define GADGET_ID_CHANGE_BY_OTHER_ACT  (GADGET_ID_CHECKBUTTON_FIRST + 49)
+#define GADGET_ID_SHIFTED_RELOCATION   (GADGET_ID_CHECKBUTTON_FIRST + 15)
+#define GADGET_ID_USE_START_ELEMENT    (GADGET_ID_CHECKBUTTON_FIRST + 16)
+#define GADGET_ID_USE_ARTWORK_ELEMENT  (GADGET_ID_CHECKBUTTON_FIRST + 17)
+#define GADGET_ID_USE_EXPLOSION_ELEMENT        (GADGET_ID_CHECKBUTTON_FIRST + 18)
+#define GADGET_ID_INITIAL_GRAVITY      (GADGET_ID_CHECKBUTTON_FIRST + 19)
+#define GADGET_ID_CAN_PASS_TO_WALKABLE (GADGET_ID_CHECKBUTTON_FIRST + 20)
+#define GADGET_ID_CAN_FALL_INTO_ACID   (GADGET_ID_CHECKBUTTON_FIRST + 21)
+#define GADGET_ID_CAN_MOVE_INTO_ACID   (GADGET_ID_CHECKBUTTON_FIRST + 22)
+#define GADGET_ID_DONT_COLLIDE_WITH    (GADGET_ID_CHECKBUTTON_FIRST + 23)
+#define GADGET_ID_ENVELOPE_AUTOWRAP    (GADGET_ID_CHECKBUTTON_FIRST + 24)
+#define GADGET_ID_ENVELOPE_CENTERED    (GADGET_ID_CHECKBUTTON_FIRST + 25)
+#define GADGET_ID_CUSTOM_INDESTRUCTIBLE        (GADGET_ID_CHECKBUTTON_FIRST + 26)
+#define GADGET_ID_CUSTOM_CAN_EXPLODE   (GADGET_ID_CHECKBUTTON_FIRST + 27)
+#define GADGET_ID_CUSTOM_EXPLODE_FIRE  (GADGET_ID_CHECKBUTTON_FIRST + 28)
+#define GADGET_ID_CUSTOM_EXPLODE_SMASH (GADGET_ID_CHECKBUTTON_FIRST + 29)
+#define GADGET_ID_CUSTOM_EXPLODE_IMPACT        (GADGET_ID_CHECKBUTTON_FIRST + 30)
+#define GADGET_ID_CUSTOM_WALK_TO_OBJECT        (GADGET_ID_CHECKBUTTON_FIRST + 31)
+#define GADGET_ID_CUSTOM_DEADLY                (GADGET_ID_CHECKBUTTON_FIRST + 32)
+#define GADGET_ID_CUSTOM_CAN_MOVE      (GADGET_ID_CHECKBUTTON_FIRST + 33)
+#define GADGET_ID_CUSTOM_CAN_FALL      (GADGET_ID_CHECKBUTTON_FIRST + 34)
+#define GADGET_ID_CUSTOM_CAN_SMASH     (GADGET_ID_CHECKBUTTON_FIRST + 35)
+#define GADGET_ID_CUSTOM_SLIPPERY      (GADGET_ID_CHECKBUTTON_FIRST + 36)
+#define GADGET_ID_CUSTOM_ACCESSIBLE    (GADGET_ID_CHECKBUTTON_FIRST + 37)
+#define GADGET_ID_CUSTOM_GRAV_REACHABLE        (GADGET_ID_CHECKBUTTON_FIRST + 38)
+#define GADGET_ID_CUSTOM_USE_LAST_VALUE        (GADGET_ID_CHECKBUTTON_FIRST + 39)
+#define GADGET_ID_CUSTOM_USE_GRAPHIC   (GADGET_ID_CHECKBUTTON_FIRST + 40)
+#define GADGET_ID_CUSTOM_USE_TEMPLATE  (GADGET_ID_CHECKBUTTON_FIRST + 41)
+#define GADGET_ID_CUSTOM_CAN_CHANGE    (GADGET_ID_CHECKBUTTON_FIRST + 42)
+#define GADGET_ID_CHANGE_USE_CONTENT   (GADGET_ID_CHECKBUTTON_FIRST + 43)
+#define GADGET_ID_CHANGE_USE_EXPLOSION (GADGET_ID_CHECKBUTTON_FIRST + 44)
+#define GADGET_ID_CHANGE_ONLY_COMPLETE (GADGET_ID_CHECKBUTTON_FIRST + 45)
+#define GADGET_ID_CHANGE_USE_RANDOM    (GADGET_ID_CHECKBUTTON_FIRST + 46)
+#define GADGET_ID_CHANGE_HAS_ACTION    (GADGET_ID_CHECKBUTTON_FIRST + 47)
+#define GADGET_ID_CHANGE_DELAY         (GADGET_ID_CHECKBUTTON_FIRST + 48)
+#define GADGET_ID_CHANGE_BY_DIRECT_ACT (GADGET_ID_CHECKBUTTON_FIRST + 49)
+#define GADGET_ID_CHANGE_BY_OTHER_ACT  (GADGET_ID_CHECKBUTTON_FIRST + 50)
 
 /* gadgets for buttons in element list */
-#define GADGET_ID_ELEMENTLIST_FIRST    (GADGET_ID_CHECKBUTTON_FIRST + 50)
+#define GADGET_ID_ELEMENTLIST_FIRST    (GADGET_ID_CHECKBUTTON_FIRST + 51)
 #define GADGET_ID_ELEMENTLIST_LAST     (GADGET_ID_ELEMENTLIST_FIRST +  \
                                        ED_NUM_ELEMENTLIST_BUTTONS - 1)
 
 #define ED_CHECKBUTTON_ID_BLOCK_LAST_FIELD     10
 #define ED_CHECKBUTTON_ID_SP_BLOCK_LAST_FIELD  11
 #define ED_CHECKBUTTON_ID_INSTANT_RELOCATION   12
-#define ED_CHECKBUTTON_ID_USE_START_ELEMENT    13
-#define ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT  14
-#define ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT        15
-#define ED_CHECKBUTTON_ID_INITIAL_GRAVITY      16
-#define ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE 17
-#define ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID   18
-#define ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID   19
-#define ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH    20
-#define ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP    21
-#define ED_CHECKBUTTON_ID_ENVELOPE_CENTERED    22
-#define ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC   23
-#define ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE  24
-#define ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE    25
-#define ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE        26
-#define ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE        27
-#define ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT        28
-#define ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE        29
-#define ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE      30
-#define ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL      31
-#define ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH     32
-#define ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY      33
-#define ED_CHECKBUTTON_ID_CUSTOM_DEADLY                34
-#define ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE   35
-#define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE  36
-#define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH 37
-#define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT        38
-#define ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE    39
-#define ED_CHECKBUTTON_ID_CHANGE_DELAY         40
-#define ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT 41
-#define ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT  42
-#define ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION 43
-#define ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT   44
-#define ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE 45
-#define ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM    46
-#define ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION    47
-
-#define ED_NUM_CHECKBUTTONS                    48
+#define ED_CHECKBUTTON_ID_SHIFTED_RELOCATION   13
+#define ED_CHECKBUTTON_ID_USE_START_ELEMENT    14
+#define ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT  15
+#define ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT        16
+#define ED_CHECKBUTTON_ID_INITIAL_GRAVITY      17
+#define ED_CHECKBUTTON_ID_CAN_PASS_TO_WALKABLE 18
+#define ED_CHECKBUTTON_ID_CAN_FALL_INTO_ACID   19
+#define ED_CHECKBUTTON_ID_CAN_MOVE_INTO_ACID   20
+#define ED_CHECKBUTTON_ID_DONT_COLLIDE_WITH    21
+#define ED_CHECKBUTTON_ID_ENVELOPE_AUTOWRAP    22
+#define ED_CHECKBUTTON_ID_ENVELOPE_CENTERED    23
+#define ED_CHECKBUTTON_ID_CUSTOM_USE_GRAPHIC   24
+#define ED_CHECKBUTTON_ID_CUSTOM_USE_TEMPLATE  25
+#define ED_CHECKBUTTON_ID_CUSTOM_ACCESSIBLE    26
+#define ED_CHECKBUTTON_ID_CUSTOM_GRAV_REACHABLE        27
+#define ED_CHECKBUTTON_ID_CUSTOM_USE_LAST_VALUE        28
+#define ED_CHECKBUTTON_ID_CUSTOM_WALK_TO_OBJECT        29
+#define ED_CHECKBUTTON_ID_CUSTOM_INDESTRUCTIBLE        30
+#define ED_CHECKBUTTON_ID_CUSTOM_CAN_MOVE      31
+#define ED_CHECKBUTTON_ID_CUSTOM_CAN_FALL      32
+#define ED_CHECKBUTTON_ID_CUSTOM_CAN_SMASH     33
+#define ED_CHECKBUTTON_ID_CUSTOM_SLIPPERY      34
+#define ED_CHECKBUTTON_ID_CUSTOM_DEADLY                35
+#define ED_CHECKBUTTON_ID_CUSTOM_CAN_EXPLODE   36
+#define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_FIRE  37
+#define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_SMASH 38
+#define ED_CHECKBUTTON_ID_CUSTOM_EXPLODE_IMPACT        39
+#define ED_CHECKBUTTON_ID_CUSTOM_CAN_CHANGE    40
+#define ED_CHECKBUTTON_ID_CHANGE_DELAY         41
+#define ED_CHECKBUTTON_ID_CHANGE_BY_DIRECT_ACT 42
+#define ED_CHECKBUTTON_ID_CHANGE_BY_OTHER_ACT  43
+#define ED_CHECKBUTTON_ID_CHANGE_USE_EXPLOSION 44
+#define ED_CHECKBUTTON_ID_CHANGE_USE_CONTENT   45
+#define ED_CHECKBUTTON_ID_CHANGE_ONLY_COMPLETE 46
+#define ED_CHECKBUTTON_ID_CHANGE_USE_RANDOM    47
+#define ED_CHECKBUTTON_ID_CHANGE_HAS_ACTION    48
+
+#define ED_NUM_CHECKBUTTONS                    49
 
 #define ED_CHECKBUTTON_ID_LEVEL_FIRST  ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 #define ED_CHECKBUTTON_ID_LEVEL_LAST   ED_CHECKBUTTON_ID_RANDOM_RESTRICTED
 
 /* values for elements with score for certain actions */
 #define MIN_SCORE                      0
-#define MAX_SCORE                      255
+#define MAX_SCORE                      999
 
 /* values for elements with count for collecting */
 #define MIN_COLLECT_COUNT              0
-#define MAX_COLLECT_COUNT              255
+#define MAX_COLLECT_COUNT              999
 
 /* values for random placement */
 #define RANDOM_USE_PERCENTAGE          0
@@ -1047,7 +1049,7 @@ static struct
   },
   {
     ED_LEVEL_SETTINGS_XPOS(0),         ED_LEVEL_SETTINGS_YPOS(9),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_LEVEL_TIMESCORE_DOWN,    GADGET_ID_LEVEL_TIMESCORE_UP,
     GADGET_ID_LEVEL_TIMESCORE_TEXT,    GADGET_ID_NONE,
     &level.score[SC_TIME_BONUS],
@@ -1173,7 +1175,7 @@ static struct
   },
   {
     ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(7),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_PUSH_DELAY_FIX_DOWN,     GADGET_ID_PUSH_DELAY_FIX_UP,
     GADGET_ID_PUSH_DELAY_FIX_TEXT,     GADGET_ID_NONE,
     &custom_element.push_delay_fixed,
@@ -1181,7 +1183,7 @@ static struct
   },
   {
     -1,                                        ED_ELEMENT_SETTINGS_YPOS(7),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_PUSH_DELAY_RND_DOWN,     GADGET_ID_PUSH_DELAY_RND_UP,
     GADGET_ID_PUSH_DELAY_RND_TEXT,     GADGET_ID_PUSH_DELAY_FIX_UP,
     &custom_element.push_delay_random,
@@ -1189,7 +1191,7 @@ static struct
   },
   {
     ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(8),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_DROP_DELAY_FIX_DOWN,     GADGET_ID_DROP_DELAY_FIX_UP,
     GADGET_ID_DROP_DELAY_FIX_TEXT,     GADGET_ID_NONE,
     &custom_element.drop_delay_fixed,
@@ -1197,7 +1199,7 @@ static struct
   },
   {
     -1,                                        ED_ELEMENT_SETTINGS_YPOS(8),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_DROP_DELAY_RND_DOWN,     GADGET_ID_DROP_DELAY_RND_UP,
     GADGET_ID_DROP_DELAY_RND_TEXT,     GADGET_ID_DROP_DELAY_FIX_UP,
     &custom_element.drop_delay_random,
@@ -1224,7 +1226,7 @@ static struct
   },
   {
     ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(12),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_EXPLOSION_DELAY_DOWN,    GADGET_ID_EXPLOSION_DELAY_UP,
     GADGET_ID_EXPLOSION_DELAY_TEXT,    GADGET_ID_NONE,
     &custom_element.explosion_delay,
@@ -1232,7 +1234,7 @@ static struct
   },
   {
     ED_ELEMENT_SETTINGS_XPOS(1),       ED_ELEMENT_SETTINGS_YPOS(13),
-    0,                                 255,
+    0,                                 999,
     GADGET_ID_IGNITION_DELAY_DOWN,     GADGET_ID_IGNITION_DELAY_UP,
     GADGET_ID_IGNITION_DELAY_TEXT,     GADGET_ID_NONE,
     &custom_element.ignition_delay,
@@ -1513,6 +1515,7 @@ static struct ValueTextInfo options_deadliness[] =
 {
   { EP_DONT_RUN_INTO,          "running into"                  },
   { EP_DONT_COLLIDE_WITH,      "colliding with"                },
+  { EP_DONT_GET_HIT_BY,                "getting hit by"                },
   { EP_DONT_TOUCH,             "touching"                      },
 
   { -1,                                NULL                            }
@@ -2034,7 +2037,7 @@ static struct
   /* ---------- element settings: configure (several elements) ------------- */
 
   {
-    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(5),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(6),
     GADGET_ID_PLAYER_SPEED,            GADGET_ID_NONE,
     -1,
     options_player_speed,
@@ -2558,14 +2561,14 @@ static struct
     "can grow into anything diggable", "grow into more than just sand"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(7),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(8),
     GADGET_ID_CONTINUOUS_SNAPPING,     GADGET_ID_NONE,
     &level.continuous_snapping,
     NULL,
     "continuos snapping",              "use snapping without releasing key"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(6),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(7),
     GADGET_ID_BLOCK_SNAP_FIELD,                GADGET_ID_NONE,
     &level.block_snap_field,
     NULL,
@@ -2593,35 +2596,42 @@ static struct
     "no scrolling when relocating",    "player gets relocated without delay"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(8),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(4),
+    GADGET_ID_SHIFTED_RELOCATION,      GADGET_ID_NONE,
+    &level.shifted_relocation,
+    NULL,
+    "no centering when relocating",    "level not centered after relocation"
+  },
+  {
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(9),
     GADGET_ID_USE_START_ELEMENT,       GADGET_ID_NONE,
     &level.use_start_element[0],
     NULL,
     "use level start element:",               "start level at this element's position"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(9),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(10),
     GADGET_ID_USE_ARTWORK_ELEMENT,     GADGET_ID_NONE,
     &level.use_artwork_element[0],
     NULL,
     "use artwork from element:",       "use player artwork from other element"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(10),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(11),
     GADGET_ID_USE_EXPLOSION_ELEMENT,   GADGET_ID_NONE,
     &level.use_explosion_element[0],
     NULL,
     "use explosion from element:",     "use explosion properties from element"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(11),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(12),
     GADGET_ID_INITIAL_GRAVITY,         GADGET_ID_NONE,
     &level.initial_player_gravity[0],
     NULL,
     "use initial gravity",             "set initial player gravity"
   },
   {
-    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(4),
+    ED_ELEMENT_SETTINGS_XPOS(0),       ED_ELEMENT_SETTINGS_YPOS(5),
     GADGET_ID_CAN_PASS_TO_WALKABLE,    GADGET_ID_NONE,
     &level.can_pass_to_walkable,
     NULL,
@@ -2997,7 +3007,7 @@ static struct
   /* ---------- level start element ---------------------------------------- */
 
   {
-    -1,                                        ED_AREA_1X1_SETTINGS_YPOS(8),
+    -1,                                        ED_AREA_1X1_SETTINGS_YPOS(9),
     GADGET_ID_START_ELEMENT,           GADGET_ID_USE_START_ELEMENT,
     &level.start_element[0],           1, 1,
     NULL, NULL, NULL,                  "level start element"
@@ -3006,7 +3016,7 @@ static struct
   /* ---------- player artwork element ------------------------------------- */
 
   {
-    -1,                                        ED_AREA_1X1_SETTINGS_YPOS(9),
+    -1,                                        ED_AREA_1X1_SETTINGS_YPOS(10),
     GADGET_ID_ARTWORK_ELEMENT,         GADGET_ID_USE_ARTWORK_ELEMENT,
     &level.artwork_element[0],         1, 1,
     NULL, NULL, NULL,                  "element for player artwork"
@@ -3015,7 +3025,7 @@ static struct
   /* ---------- player explosion element ----------------------------------- */
 
   {
-    -1,                                        ED_AREA_1X1_SETTINGS_YPOS(10),
+    -1,                                        ED_AREA_1X1_SETTINGS_YPOS(11),
     GADGET_ID_EXPLOSION_ELEMENT,       GADGET_ID_USE_EXPLOSION_ELEMENT,
     &level.explosion_element[0],       1, 1,
     NULL, NULL, NULL,                  "element for player explosion"
@@ -3083,7 +3093,7 @@ static struct
   {
     -1,                                        ED_AREA_1X1_SETTINGS_YPOS(5),
     GADGET_ID_CUSTOM_CHANGE_TRIGGER,   GADGET_ID_CHANGE_OTHER_ACTION,
-    &custom_element_change.trigger_element, 1, 1,
+    &custom_element_change.initial_trigger_element, 1, 1,
     NULL, NULL, NULL,                  "other element triggering change"
   },
 
@@ -3302,6 +3312,11 @@ static int editor_el_emerald_mine[] =
   EL_EM_GATE_2_GRAY,
   EL_EM_GATE_3_GRAY,
   EL_EM_GATE_4_GRAY,
+
+  EL_EM_EXIT_CLOSED,
+  EL_EM_EXIT_OPEN,
+  EL_EM_STEEL_EXIT_CLOSED,
+  EL_EM_STEEL_EXIT_OPEN,
 };
 static int *editor_hl_emerald_mine_ptr = editor_hl_emerald_mine;
 static int *editor_el_emerald_mine_ptr = editor_el_emerald_mine;
@@ -3633,25 +3648,25 @@ static int editor_el_diamond_caves[] =
   EL_SWITCHGATE_SWITCH_UP,
   EL_SWITCHGATE_SWITCH_DOWN,
 
-  EL_EMPTY,
-  EL_EMPTY,
-  EL_DC_SWITCHGATE_SWITCH_UP,
-  EL_DC_SWITCHGATE_SWITCH_DOWN,
-
-  EL_SIGN_EXCLAMATION,
-  EL_SIGN_STOP,
   EL_LIGHT_SWITCH,
   EL_LIGHT_SWITCH_ACTIVE,
+  EL_DC_SWITCHGATE_SWITCH_UP,
+  EL_DC_SWITCHGATE_SWITCH_DOWN,
 
+  EL_STEEL_EXIT_CLOSED,
+  EL_STEEL_EXIT_OPEN,
   EL_STEELWALL_SLIPPERY,
   EL_INVISIBLE_SAND,
+
+  EL_QUICKSAND_FAST_EMPTY,
+  EL_QUICKSAND_FAST_FULL,
   EL_LANDMINE,
   EL_DC_LANDMINE,
 
   EL_SHIELD_NORMAL,
   EL_SHIELD_DEADLY,
   EL_EXTRA_TIME,
-  EL_EMPTY,
+  EL_DC_MAGIC_WALL,
 
   EL_ENVELOPE_1,
   EL_ENVELOPE_2,
@@ -3668,6 +3683,7 @@ static int editor_el_diamond_caves[] =
   EL_SIGN_EMERGENCY_EXIT,
   EL_SIGN_YIN_YANG,
 
+#if 0
   EL_SIGN_SPERMS,
   EL_SIGN_BULLET,
   EL_SIGN_HEART,
@@ -3687,11 +3703,12 @@ static int editor_el_diamond_caves[] =
   EL_EMPTY,
   EL_EMPTY,
   EL_EMPTY,
+#endif
 
   EL_DC_STEELWALL_2_SINGLE,
   EL_DC_STEELWALL_2_TOP,
-  EL_STEEL_EXIT_CLOSED,
-  EL_STEEL_EXIT_OPEN,
+  EL_SIGN_EXCLAMATION,
+  EL_SIGN_STOP,
 
   EL_DC_STEELWALL_2_LEFT,
   EL_DC_STEELWALL_2_MIDDLE,
@@ -3701,52 +3718,32 @@ static int editor_el_diamond_caves[] =
   EL_DC_STEELWALL_1_TOPLEFT,
   EL_DC_STEELWALL_2_VERTICAL,
   EL_DC_STEELWALL_1_TOPRIGHT,
-  EL_EMPTY,
+  EL_DC_GATE_WHITE,
 
   EL_DC_STEELWALL_1_VERTICAL,
   EL_DC_STEELWALL_2_BOTTOM,
-  EL_EMPTY,
-  EL_EMPTY,
+  EL_DC_KEY_WHITE,
+  EL_DC_GATE_WHITE_GRAY,
 
   EL_DC_STEELWALL_1_BOTTOMLEFT,
   EL_DC_STEELWALL_1_HORIZONTAL,
   EL_DC_STEELWALL_1_BOTTOMRIGHT,
-  EL_EMPTY,
+  EL_DC_GATE_FAKE_GRAY,
 
   EL_DC_STEELWALL_1_BOTTOMRIGHT_2,
   EL_DC_STEELWALL_1_BOTTOM,
   EL_DC_STEELWALL_1_BOTTOMLEFT_2,
-  EL_EMPTY,
+  EL_EXPANDABLE_STEELWALL_HORIZONTAL,
 
   EL_DC_STEELWALL_1_RIGHT,
   EL_EMPTY,
   EL_DC_STEELWALL_1_LEFT,
-  EL_EMPTY,
+  EL_EXPANDABLE_STEELWALL_VERTICAL,
 
   EL_DC_STEELWALL_1_TOPRIGHT_2,
   EL_DC_STEELWALL_1_TOP,
   EL_DC_STEELWALL_1_TOPLEFT_2,
-  EL_EMPTY,
-
-  EL_EXPANDABLE_STEELWALL_HORIZONTAL,
-  EL_EXPANDABLE_STEELWALL_VERTICAL,
   EL_EXPANDABLE_STEELWALL_ANY,
-  EL_EMPTY,
-
-  EL_EM_EXIT_CLOSED,
-  EL_EM_EXIT_OPEN,
-  EL_EM_STEEL_EXIT_CLOSED,
-  EL_EM_STEEL_EXIT_OPEN,
-
-  EL_DC_KEY_WHITE,
-  EL_DC_GATE_WHITE,
-  EL_DC_GATE_WHITE_GRAY,
-  EL_DC_GATE_FAKE_GRAY,
-
-  EL_DC_MAGIC_WALL,
-  EL_QUICKSAND_FAST_EMPTY,
-  EL_QUICKSAND_FAST_FULL,
-  EL_EMPTY,
 };
 static int *editor_hl_diamond_caves_ptr = editor_hl_diamond_caves;
 static int *editor_el_diamond_caves_ptr = editor_el_diamond_caves;
@@ -4992,10 +4989,38 @@ static void DrawDrawingArea(int id)
 
 static void ScrollMiniLevel(int from_x, int from_y, int scroll)
 {
-  int x,y;
+#if 0
+  /* (directly solved in BlitBitmap() now) */
+  static Bitmap *tmp_backbuffer = NULL;
+#endif
+  int x, y;
   int dx = (scroll == ED_SCROLL_LEFT ? -1 : scroll == ED_SCROLL_RIGHT ? 1 : 0);
   int dy = (scroll == ED_SCROLL_UP   ? -1 : scroll == ED_SCROLL_DOWN  ? 1 : 0);
 
+#if 0
+  /* (directly solved in BlitBitmap() now) */
+  if (tmp_backbuffer == NULL)
+    tmp_backbuffer = CreateBitmap(WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH);
+
+  /* needed when blitting directly to same bitmap -- should not be needed with
+     recent SDL libraries, but apparently does not work in 1.2.11 directly */
+  BlitBitmap(drawto, tmp_backbuffer,
+            SX + (dx == -1 ? MINI_TILEX : 0),
+            SY + (dy == -1 ? MINI_TILEY : 0),
+            (ed_fieldx * MINI_TILEX) - (dx != 0 ? MINI_TILEX : 0),
+            (ed_fieldy * MINI_TILEY) - (dy != 0 ? MINI_TILEY : 0),
+            SX + (dx == +1 ? MINI_TILEX : 0),
+            SY + (dy == +1 ? MINI_TILEY : 0));
+  BlitBitmap(tmp_backbuffer, drawto,
+            SX + (dx == +1 ? MINI_TILEX : 0),
+            SY + (dy == +1 ? MINI_TILEY : 0),
+            (ed_fieldx * MINI_TILEX) - (dx != 0 ? MINI_TILEX : 0),
+            (ed_fieldy * MINI_TILEY) - (dy != 0 ? MINI_TILEY : 0),
+            SX + (dx == +1 ? MINI_TILEX : 0),
+            SY + (dy == +1 ? MINI_TILEY : 0));
+
+#else
+
   BlitBitmap(drawto, drawto,
             SX + (dx == -1 ? MINI_TILEX : 0),
             SY + (dy == -1 ? MINI_TILEY : 0),
@@ -5003,6 +5028,8 @@ static void ScrollMiniLevel(int from_x, int from_y, int scroll)
             (ed_fieldy * MINI_TILEY) - (dy != 0 ? MINI_TILEY : 0),
             SX + (dx == +1 ? MINI_TILEX : 0),
             SY + (dy == +1 ? MINI_TILEY : 0));
+#endif
+
   if (dx)
   {
     x = (dx == 1 ? 0 : ed_fieldx - 1);
@@ -6566,8 +6593,8 @@ static void replace_custom_element_in_settings(int element_from,
       if (change->target_element == element_from)
        change->target_element = element_to;
 
-      if (change->trigger_element == element_from)
-       change->trigger_element = element_to;
+      if (change->initial_trigger_element == element_from)
+       change->initial_trigger_element = element_to;
 
       for (y = 0; y < 3; y++)
        for (x = 0; x < 3; x++)
@@ -6743,11 +6770,13 @@ static void CopyCustomElementPropertiesToEditor(int element)
   /* set deadliness selectbox help value */
   custom_element.deadliness =
     (DONT_TOUCH(element) ? EP_DONT_TOUCH :
+     DONT_GET_HIT_BY(element) ? EP_DONT_GET_HIT_BY :
      DONT_COLLIDE_WITH(element) ? EP_DONT_COLLIDE_WITH :
      DONT_RUN_INTO(element) ? EP_DONT_RUN_INTO :
      custom_element.deadliness);
   custom_element_properties[EP_DEADLY] =
     (DONT_TOUCH(element) ||
+     DONT_GET_HIT_BY(element) ||
      DONT_COLLIDE_WITH(element) ||
      DONT_RUN_INTO(element));
 
@@ -6895,6 +6924,7 @@ static void CopyCustomElementPropertiesToGame(int element)
   /* 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_GET_HIT_BY] = FALSE;
   custom_element_properties[EP_DONT_TOUCH] = FALSE;
   custom_element_properties[custom_element.deadliness] =
     custom_element_properties[EP_DEADLY];
@@ -7004,6 +7034,11 @@ void CheckElementDescriptions()
 void DrawLevelEd()
 {
   CloseDoor(DOOR_CLOSE_ALL);
+
+#if 1
+  FadeOut(REDRAW_FIELD);
+#endif
+
   OpenDoor(DOOR_OPEN_2 | DOOR_NO_DELAY);
 
 #if DEBUG
@@ -7051,12 +7086,26 @@ void DrawLevelEd()
 #endif
   MapControlButtons();
 
+#if 0
+  FadeOut(REDRAW_FIELD);
+#endif
+
   DrawEditModeWindow();
 
+#if 1
+  FadeIn(REDRAW_FIELD);
+#endif
+
   /* copy actual editor door content to door double buffer for OpenDoor() */
   BlitBitmap(drawto, bitmap_db_door,
             DX, DY, DXSIZE, DYSIZE, DOOR_GFX_PAGEX1, DOOR_GFX_PAGEY1);
 
+#if 1
+  /* draw new control window (with border) to window */
+  redraw_mask |= REDRAW_ALL;
+  BackToFront();
+#endif
+
   OpenDoor(DOOR_OPEN_1);
 }
 
@@ -7309,7 +7358,7 @@ static void DrawDrawingWindow()
   stick_element_properties_window = FALSE;
 
   SetMainBackgroundImage(IMG_UNDEFINED);
-  ClearWindow();
+  ClearField();
 
   UnmapLevelEditorWindowGadgets();
   UnmapLevelEditorToolboxCustomGadgets();
@@ -7332,7 +7381,7 @@ static void DrawLevelInfoWindow()
   stick_element_properties_window = FALSE;
 
   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
-  ClearWindow();
+  ClearField();
   UnmapLevelEditorWindowGadgets();
 
 #if 0
@@ -7667,6 +7716,7 @@ static void DrawPropertiesInfo()
 
     { EP_DONT_RUN_INTO,                "- deadly when running into"            },
     { EP_DONT_COLLIDE_WITH,    "- deadly when colliding with"          },
+    { EP_DONT_GET_HIT_BY,      "- deadly when getting hit by"          },
     { EP_DONT_TOUCH,           "- deadly when touching"                },
 
     { EP_INDESTRUCTIBLE,       "- indestructible"                      },
@@ -7840,6 +7890,7 @@ static struct
   { 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_DC_KEY_WHITE,   &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 },
@@ -8010,6 +8061,7 @@ static void DrawPropertiesConfig()
     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_BLOCK_SNAP_FIELD);
     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_CONTINUOUS_SNAPPING);
     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_INSTANT_RELOCATION);
+    MapCheckbuttonGadget(ED_CHECKBUTTON_ID_SHIFTED_RELOCATION);
     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_START_ELEMENT);
     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_ARTWORK_ELEMENT);
     MapCheckbuttonGadget(ED_CHECKBUTTON_ID_USE_EXPLOSION_ELEMENT);
@@ -8301,7 +8353,7 @@ static void DrawPropertiesWindow()
     MapLevelEditorToolboxCustomGadgets();
 
   SetMainBackgroundImage(IMG_BACKGROUND_EDITOR);
-  ClearWindow();
+  ClearField();
 
 #if 0
   DrawTextSCentered(ED_SETTINGS1_YPOS, FONT_TITLE_1, "Element Settings");
@@ -8350,7 +8402,7 @@ static void UpdateCustomElementGraphicGadgets()
   }
 }
 
-static int getDirectionFromTube(int element)
+static int getOpenDirectionFromTube(int element)
 {
   switch (element)
   {
@@ -8370,7 +8422,7 @@ static int getDirectionFromTube(int element)
   return MV_NONE;
 }
 
-static int getTubeFromDirection(int direction)
+static int getTubeFromOpenDirection(int direction)
 {
   switch (direction)
   {
@@ -8396,9 +8448,9 @@ static int getTubeFromDirection(int direction)
   return EL_EMPTY;
 }
 
-static int getTubeFromDirectionNotEmpty(int direction, int element_old)
+static int getTubeFromOpenDirectionNotEmpty(int direction, int element_old)
 {
-  int element_new = getTubeFromDirection(direction);
+  int element_new = getTubeFromOpenDirection(direction);
 
   return (element_new != EL_EMPTY ? element_new : element_old);
 }
@@ -8418,9 +8470,186 @@ static int getBeltFromNrAndOpenDirection(int nr, int direction)
                  direction == MV_RIGHT ? MV_LEFT :
                  direction == MV_HORIZONTAL ? MV_NONE : direction);
 
+  if (direction == MV_NONE)
+    return EL_EMPTY;
+
   return getBeltElementFromBeltNrAndBeltDir(nr, belt_dir);
 }
 
+static int getBeltFromNrAndOpenDirectionNotEmpty(int nr, int direction,
+                                                int element_old)
+{
+  int element_new = getBeltFromNrAndOpenDirection(nr, direction);
+
+  return (element_new != EL_EMPTY ? element_new : element_old);
+}
+
+static int getOpenDirectionFromPool(int element)
+{
+  switch (element)
+  {
+    case EL_ACID_POOL_TOPLEFT:         return (MV_DOWN | MV_RIGHT);
+    case EL_ACID_POOL_TOPRIGHT:                return (MV_DOWN | MV_LEFT);
+    case EL_ACID_POOL_BOTTOMLEFT:      return (MV_UP | MV_RIGHT);
+    case EL_ACID_POOL_BOTTOMRIGHT:     return (MV_UP | MV_LEFT);
+    case EL_ACID_POOL_BOTTOM:          return (MV_HORIZONTAL | MV_UP);
+    case EL_ACID:                      return (MV_HORIZONTAL | MV_DOWN);
+  }
+
+  return MV_NONE;
+}
+
+static int getPoolFromOpenDirection(int direction)
+{
+  switch (direction)
+  {
+    case (MV_DOWN | MV_RIGHT):         return EL_ACID_POOL_TOPLEFT;
+    case (MV_DOWN | MV_LEFT):          return EL_ACID_POOL_TOPRIGHT;
+    case (MV_UP | MV_RIGHT):           return EL_ACID_POOL_BOTTOMLEFT;
+    case (MV_UP | MV_LEFT):            return EL_ACID_POOL_BOTTOMRIGHT;
+    case (MV_HORIZONTAL | MV_UP):      return EL_ACID_POOL_BOTTOM;
+    case (MV_HORIZONTAL | MV_DOWN):    return EL_ACID;
+  }
+
+  return EL_EMPTY;
+}
+
+static int getPoolFromOpenDirectionExt(int direction, int help_element)
+{
+  int element = getPoolFromOpenDirection(direction);
+  int help_direction = getOpenDirectionFromPool(help_element);
+
+  if (element == EL_EMPTY)
+  {
+    int help_direction_vertical = help_direction & MV_VERTICAL;
+
+    element = getPoolFromOpenDirection(direction | help_direction_vertical);
+  }
+
+  if (element == EL_EMPTY)
+  {
+    int help_direction_horizontal = help_direction & MV_HORIZONTAL;
+
+    element = getPoolFromOpenDirection(direction | help_direction_horizontal);
+  }
+
+  return element;
+}
+
+static int getPoolFromOpenDirectionNotEmpty(int direction, int element_old)
+{
+  int element_new = getPoolFromOpenDirectionExt(direction, element_old);
+
+  return (element_new != EL_EMPTY ? element_new : element_old);
+}
+
+static int getOpenDirectionFromPillar(int element)
+{
+  switch (element)
+  {
+    case EL_EMC_WALL_1:                        return (MV_DOWN);
+    case EL_EMC_WALL_2:                        return (MV_VERTICAL);
+    case EL_EMC_WALL_3:                        return (MV_UP);
+  }
+
+  return MV_NONE;
+}
+
+static int getPillarFromOpenDirection(int direction)
+{
+  switch (direction)
+  {
+    case (MV_DOWN):                    return EL_EMC_WALL_1;
+    case (MV_VERTICAL):                        return EL_EMC_WALL_2;
+    case (MV_UP):                      return EL_EMC_WALL_3;
+  }
+
+  return EL_EMPTY;
+}
+
+static int getPillarFromOpenDirectionNotEmpty(int direction, int element_old)
+{
+  int element_new = getPillarFromOpenDirection(direction);
+
+  return (element_new != EL_EMPTY ? element_new : element_old);
+}
+
+static int getOpenDirectionFromSteel2(int element)
+{
+  switch (element)
+  {
+    case EL_DC_STEELWALL_2_LEFT:       return (MV_RIGHT);
+    case EL_DC_STEELWALL_2_RIGHT:      return (MV_LEFT);
+    case EL_DC_STEELWALL_2_TOP:                return (MV_DOWN);
+    case EL_DC_STEELWALL_2_BOTTOM:     return (MV_UP);
+    case EL_DC_STEELWALL_2_HORIZONTAL: return (MV_HORIZONTAL);
+    case EL_DC_STEELWALL_2_VERTICAL:   return (MV_VERTICAL);
+    case EL_DC_STEELWALL_2_MIDDLE:     return (MV_ANY_DIRECTION);
+    case EL_DC_STEELWALL_2_SINGLE:     return (MV_NONE);
+  }
+
+  return MV_NONE;
+}
+
+static int getSteel2FromOpenDirection(int direction)
+{
+  switch (direction)
+  {
+    case (MV_RIGHT):                   return EL_DC_STEELWALL_2_LEFT;
+    case (MV_LEFT):                    return EL_DC_STEELWALL_2_RIGHT;
+    case (MV_DOWN):                    return EL_DC_STEELWALL_2_TOP;
+    case (MV_UP):                      return EL_DC_STEELWALL_2_BOTTOM;
+    case (MV_HORIZONTAL):              return EL_DC_STEELWALL_2_HORIZONTAL;
+    case (MV_VERTICAL):                        return EL_DC_STEELWALL_2_VERTICAL;
+    case (MV_ANY_DIRECTION):           return EL_DC_STEELWALL_2_MIDDLE;
+    case (MV_NONE):                    return EL_DC_STEELWALL_2_SINGLE;
+  }
+
+  return EL_EMPTY;
+}
+
+static int getSteel2FromOpenDirectionNotEmpty(int direction, int element_old)
+{
+  int element_new = getSteel2FromOpenDirection(direction);
+
+  return (element_new != EL_EMPTY ? element_new : element_old);
+}
+
+static int getOpenDirectionFromChip(int element)
+{
+  switch (element)
+  {
+    case EL_SP_CHIP_SINGLE:            return (MV_NONE);
+    case EL_SP_CHIP_LEFT:              return (MV_RIGHT);
+    case EL_SP_CHIP_RIGHT:             return (MV_LEFT);
+    case EL_SP_CHIP_TOP:               return (MV_DOWN);
+    case EL_SP_CHIP_BOTTOM:            return (MV_UP);
+  }
+
+  return MV_NONE;
+}
+
+static int getChipFromOpenDirection(int direction)
+{
+  switch (direction)
+  {
+    case (MV_NONE):                    return EL_SP_CHIP_SINGLE;
+    case (MV_LEFT):                    return EL_SP_CHIP_RIGHT;
+    case (MV_RIGHT):                   return EL_SP_CHIP_LEFT;
+    case (MV_UP):                      return EL_SP_CHIP_BOTTOM;
+    case (MV_DOWN):                    return EL_SP_CHIP_TOP;
+  }
+
+  return EL_EMPTY;
+}
+
+static int getChipFromOpenDirectionNotEmpty(int direction, int element_old)
+{
+  int element_new = getChipFromOpenDirection(direction);
+
+  return (element_new != EL_EMPTY ? element_new : element_old);
+}
+
 static int getClosedTube(int x, int y)
 {
   static int xy[4][2] =
@@ -8431,8 +8660,8 @@ static int getClosedTube(int x, int y)
     { 0, +1 }
   };
   int element_old = IntelliDrawBuffer[x][y];
-  int tube_direction_old = getDirectionFromTube(element_old);
-  int tube_direction_new = MV_NONE;
+  int direction_old = getOpenDirectionFromTube(element_old);
+  int direction_new = MV_NONE;
   int i;
 
   for (i = 0; i < NUM_DIRECTIONS; i++)
@@ -8443,28 +8672,30 @@ static int getClosedTube(int x, int y)
     int dir_opposite = MV_DIR_OPPOSITE(dir);
 
     if (IN_LEV_FIELD(xx, yy) && IS_TUBE(IntelliDrawBuffer[xx][yy]) &&
-       (tube_direction_old & dir) &&
-       (getDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
-      tube_direction_new |= dir;
+       (direction_old & dir) &&
+       (getOpenDirectionFromTube(IntelliDrawBuffer[xx][yy]) & dir_opposite))
+      direction_new |= dir;
   }
 
-  return getTubeFromDirectionNotEmpty(tube_direction_new, element_old);
+  return getTubeFromOpenDirectionNotEmpty(direction_new, element_old);
 }
 
 static int getClosedBelt(int x, int y)
 {
-  static int xy[2][2] =
+  static int xy[4][2] =
   {
     { -1, 0 },
     { +1, 0 },
+    { 0, -1 },
+    { 0, +1 }
   };
   int element_old = IntelliDrawBuffer[x][y];
-  int belt_nr = getBeltNrFromBeltElement(element_old);
-  int belt_direction_old = getOpenDirectionFromBelt(element_old);
-  int belt_direction_new = MV_NONE;
+  int nr = getBeltNrFromBeltElement(element_old);
+  int direction_old = getOpenDirectionFromBelt(element_old);
+  int direction_new = MV_NONE;
   int i;
 
-  for (i = 0; i < 2; i++)
+  for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
   {
     int xx = x + xy[i][0];
     int yy = y + xy[i][1];
@@ -8472,31 +8703,180 @@ static int getClosedBelt(int x, int y)
     int dir_opposite = MV_DIR_OPPOSITE(dir);
 
     if (IN_LEV_FIELD(xx, yy) && IS_BELT(IntelliDrawBuffer[xx][yy]) &&
-       (belt_direction_old & dir) &&
+       (direction_old & dir) &&
        (getOpenDirectionFromBelt(IntelliDrawBuffer[xx][yy]) & dir_opposite))
-      belt_direction_new |= dir;
+      direction_new |= dir;
   }
 
-  return getBeltFromNrAndOpenDirection(belt_nr, belt_direction_new);
+  return getBeltFromNrAndOpenDirection(nr, direction_new);
 }
 
-static void SetElementSimple(int x, int y, int element, boolean change_level)
+static int getClosedPool(int x, int y)
 {
-  if (change_level)
-    Feld[x][y] = element;
+  static int xy[4][2] =
+  {
+    { -1, 0 },
+    { +1, 0 },
+    { 0, -1 },
+    { 0, +1 }
+  };
+  int element_old = IntelliDrawBuffer[x][y];
+  int direction_old = getOpenDirectionFromPool(element_old);
+  int direction_new = MV_NONE;
+  int i;
 
-  IntelliDrawBuffer[x][y] = element;
+  for (i = 0; i < NUM_DIRECTIONS; i++)
+  {
+    int xx = x + xy[i][0];
+    int yy = y + xy[i][1];
+    int dir = MV_DIR_FROM_BIT(i);
+    int dir_opposite = MV_DIR_OPPOSITE(dir);
+
+    if (IN_LEV_FIELD(xx, yy) &&
+       IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[xx][yy]) &&
+       (direction_old & dir) &&
+       (getOpenDirectionFromPool(IntelliDrawBuffer[xx][yy]) & dir_opposite))
+      direction_new |= dir;
+  }
 
-  if (IN_ED_FIELD(x - level_xpos, y - level_ypos))
-    DrawMiniElement(x - level_xpos, y - level_ypos, element);
+  return getPoolFromOpenDirectionNotEmpty(direction_new, element_old);
 }
 
-static void SetElementIntelliDraw(int x, int y, int new_element,
-                                 boolean change_level)
+static int getClosedPillar(int x, int y)
 {
-  static int last_x = -1;
-  static int last_y = -1;
-  int old_element = IntelliDrawBuffer[x][y];
+  static int xy[4][2] =
+  {
+    { -1, 0 },
+    { +1, 0 },
+    { 0, -1 },
+    { 0, +1 }
+  };
+  int element_old = IntelliDrawBuffer[x][y];
+  int direction_old = getOpenDirectionFromPillar(element_old);
+  int direction_new = MV_NONE;
+  int i;
+
+  for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
+  {
+    int xx = x + xy[i][0];
+    int yy = y + xy[i][1];
+    int dir = MV_DIR_FROM_BIT(i);
+    int dir_opposite = MV_DIR_OPPOSITE(dir);
+
+    if (IN_LEV_FIELD(xx, yy) && IS_EMC_PILLAR(IntelliDrawBuffer[xx][yy]) &&
+       (direction_old & dir) &&
+       (getOpenDirectionFromPillar(IntelliDrawBuffer[xx][yy]) & dir_opposite))
+      direction_new |= dir;
+  }
+
+  return getPillarFromOpenDirectionNotEmpty(direction_new, element_old);
+}
+
+static int getClosedSteel2(int x, int y)
+{
+  static int xy[4][2] =
+  {
+    { -1, 0 },
+    { +1, 0 },
+    { 0, -1 },
+    { 0, +1 }
+  };
+  int element_old = IntelliDrawBuffer[x][y];
+  int direction_old = getOpenDirectionFromSteel2(element_old);
+  int direction_new = MV_NONE;
+  int i;
+
+  for (i = 0; i < NUM_DIRECTIONS; i++)
+  {
+    int xx = x + xy[i][0];
+    int yy = y + xy[i][1];
+    int dir = MV_DIR_FROM_BIT(i);
+    int dir_opposite = MV_DIR_OPPOSITE(dir);
+
+    if (IN_LEV_FIELD(xx, yy) && IS_DC_STEELWALL_2(IntelliDrawBuffer[xx][yy]) &&
+       (direction_old & dir) &&
+       (getOpenDirectionFromSteel2(IntelliDrawBuffer[xx][yy]) & dir_opposite))
+      direction_new |= dir;
+  }
+
+  return getSteel2FromOpenDirectionNotEmpty(direction_new, element_old);
+}
+
+static int getClosedChip(int x, int y)
+{
+  static int xy[4][2] =
+  {
+    { -1, 0 },
+    { +1, 0 },
+    { 0, -1 },
+    { 0, +1 }
+  };
+  int element_old = IntelliDrawBuffer[x][y];
+  int direction_old = getOpenDirectionFromChip(element_old);
+  int direction_new = MV_NONE;
+  int i;
+
+  for (i = 0; i < NUM_DIRECTIONS; i++)
+  {
+    int xx = x + xy[i][0];
+    int yy = y + xy[i][1];
+    int dir = MV_DIR_FROM_BIT(i);
+    int dir_opposite = MV_DIR_OPPOSITE(dir);
+
+    if (IN_LEV_FIELD(xx, yy) && IS_SP_CHIP(IntelliDrawBuffer[xx][yy]) &&
+       (direction_old & dir) &&
+       (getOpenDirectionFromChip(IntelliDrawBuffer[xx][yy]) & dir_opposite))
+      direction_new |= dir;
+  }
+
+  return getChipFromOpenDirectionNotEmpty(direction_new, element_old);
+}
+
+static void SetElementSimple(int x, int y, int element, boolean change_level)
+{
+  int sx = x - level_xpos;
+  int sy = y - level_ypos;
+
+  IntelliDrawBuffer[x][y] = element;
+
+  if (change_level)
+    Feld[x][y] = element;
+
+  if (IN_ED_FIELD(sx, sy))
+    DrawMiniElement(sx, sy, element);
+}
+
+static void MergeAndCloseNeighbourElements(int x1, int y1, int *element1,
+                                          int x2, int y2, int *element2,
+                                          int (*close_function)(int, int),
+                                          boolean change_level)
+{
+  /* set neighbour elements to newly determined connections */
+  SetElementSimple(x1, y1, *element1, change_level);
+  SetElementSimple(x2, y2, *element2, change_level);
+
+  /* remove all open connections of neighbour elements */
+  *element1 = close_function(x1, y1);
+  *element2 = close_function(x2, y2);
+
+  /* set neighbour elements to new, minimized connections */
+  SetElementSimple(x1, y1, *element1, change_level);
+  SetElementSimple(x2, y2, *element2, change_level);
+}
+
+static void SetElementIntelliDraw(int x, int y, int new_element,
+                                 boolean change_level, int button)
+{
+  static int xy[4][2] =
+  {
+    { -1, 0 },
+    { +1, 0 },
+    { 0, -1 },
+    { 0, +1 }
+  };
+  static int last_x = -1;
+  static int last_y = -1;
+  int old_element = IntelliDrawBuffer[x][y];
 
   if (new_element == EL_UNDEFINED)
   {
@@ -8508,21 +8888,13 @@ static void SetElementIntelliDraw(int x, int y, int new_element,
 
   if (IS_TUBE(new_element))
   {
-    static int xy[4][2] =
-    {
-      { -1, 0 },
-      { +1, 0 },
-      { 0, -1 },
-      { 0, +1 }
-    };
-    boolean last_element_is_neighbour = FALSE;
-    int last_element_new;
+    int last_element_new = EL_UNDEFINED;
     int direction = MV_NONE;
     int i;
 
-    /* if existing element is tube, keep all existing tube directions */
+    /* if old element is of same kind, keep all existing directions */
     if (IS_TUBE(old_element))
-      direction |= getDirectionFromTube(old_element);
+      direction |= getOpenDirectionFromTube(old_element);
 
     for (i = 0; i < NUM_DIRECTIONS; i++)
     {
@@ -8535,270 +8907,261 @@ static void SetElementIntelliDraw(int x, int y, int new_element,
        int dir = MV_DIR_FROM_BIT(i);
        int dir_opposite = MV_DIR_OPPOSITE(dir);
        int last_element_old = IntelliDrawBuffer[last_x][last_y];
-       int last_direction_old = getDirectionFromTube(last_element_old);
+       int last_direction_old = getOpenDirectionFromTube(last_element_old);
        int last_direction_new = last_direction_old | dir_opposite;
 
-       last_element_new = getTubeFromDirection(last_direction_new);
-       last_element_is_neighbour = TRUE;
+       last_element_new = getTubeFromOpenDirection(last_direction_new);
 
        direction |= dir;
       }
     }
 
-    new_element = getTubeFromDirectionNotEmpty(direction, new_element);
-
-    /* reduce connections of neighbour tube elements to minimal connections */
-    if (last_element_is_neighbour)
-    {
-      /* set neighbour tube elements to newly determined tube connections */
-      SetElementSimple(x, y, new_element, change_level);
-      SetElementSimple(last_x, last_y, last_element_new, change_level);
-
-      /* remove all open tube connections of neighbour tube elements */
-      new_element = getClosedTube(x, y);
-      last_element_new = getClosedTube(last_x, last_y);
+    new_element = getTubeFromOpenDirectionNotEmpty(direction, new_element);
 
-      /* set neighbour tube elements to new, minimized tube connections */
-      SetElementSimple(x, y, new_element, change_level);
-      SetElementSimple(last_x, last_y, last_element_new, change_level);
-    }
+    if (last_element_new != EL_UNDEFINED)
+      MergeAndCloseNeighbourElements(x, y, &new_element,
+                                    last_x, last_y, &last_element_new,
+                                    getClosedTube, change_level);
   }
-  else if (IS_ACID_POOL(new_element))
+  else if (IS_BELT(new_element))
   {
+    int belt_nr = getBeltNrFromBeltElement(new_element);
     int last_element_new = EL_UNDEFINED;
+    int direction = MV_NONE;
+    int i;
 
-    if (IS_ACID_POOL(old_element))
-    {
-      new_element = old_element;
-    }
+    /* if old element is of same kind, keep all existing directions */
+    if (IS_BELT(old_element))
+      direction |= getOpenDirectionFromBelt(old_element);
 
-    if (last_x == x - 1 && last_y == y && IN_LEV_FIELD(last_x, last_y) &&
-       IS_ACID_POOL(IntelliDrawBuffer[last_x][last_y]))
-    {
-      if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_TOPLEFT)
-      {
-       new_element = EL_ACID_POOL_TOPRIGHT;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_TOPRIGHT)
-      {
-       last_element_new = EL_ACID;
-       new_element = EL_ACID_POOL_TOPRIGHT;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_BOTTOMLEFT)
-      {
-       new_element = EL_ACID_POOL_BOTTOMRIGHT;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_BOTTOMRIGHT)
-      {
-       last_element_new = EL_ACID_POOL_BOTTOM;
-       new_element = EL_ACID_POOL_BOTTOMRIGHT;
-      }
-    }
-    else if (last_x == x + 1 && last_y == y && IN_LEV_FIELD(last_x, last_y) &&
-            IS_ACID_POOL(IntelliDrawBuffer[last_x][last_y]))
-    {
-      if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_TOPLEFT)
-      {
-       last_element_new = EL_ACID;
-       new_element = EL_ACID_POOL_TOPLEFT;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_TOPRIGHT)
-      {
-       new_element = EL_ACID_POOL_TOPLEFT;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_BOTTOMLEFT)
-      {
-       last_element_new = EL_ACID_POOL_BOTTOM;
-       new_element = EL_ACID_POOL_BOTTOMLEFT;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_BOTTOMRIGHT)
-      {
-       new_element = EL_ACID_POOL_BOTTOMLEFT;
-      }
-    }
-    else if (last_x == x && last_y == y - 1 && IN_LEV_FIELD(last_x, last_y) &&
-            IS_ACID_POOL(IntelliDrawBuffer[last_x][last_y]))
+    for (i = MV_BIT_LEFT; i <= MV_BIT_RIGHT; i++)
     {
-      if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_TOPLEFT)
-      {
-       new_element = EL_ACID_POOL_BOTTOMLEFT;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_TOPRIGHT)
-      {
-       new_element = EL_ACID_POOL_BOTTOMRIGHT;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_BOTTOMLEFT)
-      {
-       last_element_new = EL_ACID_POOL_TOPLEFT;
-       new_element = EL_ACID_POOL_BOTTOMLEFT;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_BOTTOMRIGHT)
-      {
-       last_element_new = EL_ACID_POOL_TOPRIGHT;
-       new_element = EL_ACID_POOL_BOTTOMRIGHT;
-      }
-      else
+      int xx = x + xy[i][0];
+      int yy = y + xy[i][1];
+
+      if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
+         IS_BELT(IntelliDrawBuffer[last_x][last_y]))
       {
-       last_element_new = EL_ACID;
-       new_element = EL_ACID_POOL_BOTTOM;
+       int dir = MV_DIR_FROM_BIT(i);
+       int dir_opposite = MV_DIR_OPPOSITE(dir);
+       int last_element_old = IntelliDrawBuffer[last_x][last_y];
+       int last_belt_nr = getBeltNrFromBeltElement(last_element_old);
+       int last_direction_old = getOpenDirectionFromBelt(last_element_old);
+       int last_direction_new = last_direction_old | dir_opposite;
+
+       last_element_new = getBeltFromNrAndOpenDirection(last_belt_nr,
+                                                        last_direction_new);
+       direction |= dir;
       }
     }
-    else if (last_x == x && last_y == y + 1 && IN_LEV_FIELD(last_x, last_y) &&
-            IS_ACID_POOL(IntelliDrawBuffer[last_x][last_y]))
+
+    new_element = getBeltFromNrAndOpenDirectionNotEmpty(belt_nr, direction,
+                                                       new_element);
+    if (last_element_new != EL_UNDEFINED)
+      MergeAndCloseNeighbourElements(x, y, &new_element,
+                                    last_x, last_y, &last_element_new,
+                                    getClosedBelt, change_level);
+  }
+  else if (IS_ACID_POOL_OR_ACID(new_element))
+  {
+    int last_element_new = EL_UNDEFINED;
+    int direction = MV_NONE;
+    int i;
+
+    /* if old element is of same kind, keep all existing directions */
+    if (IS_ACID_POOL_OR_ACID(old_element))
+      direction |= getOpenDirectionFromPool(old_element);
+
+    for (i = 0; i < NUM_DIRECTIONS; i++)
     {
-      if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_TOPLEFT)
-      {
-       new_element = EL_ACID_POOL_TOPLEFT;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_TOPRIGHT)
-      {
-       new_element = EL_ACID_POOL_TOPRIGHT;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_BOTTOMLEFT)
-      {
-       new_element = EL_ACID_POOL_TOPLEFT;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == EL_ACID_POOL_BOTTOMRIGHT)
-      {
-       new_element = EL_ACID_POOL_TOPRIGHT;
-      }
-      else
+      int xx = x + xy[i][0];
+      int yy = y + xy[i][1];
+
+      if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
+         IS_ACID_POOL_OR_ACID(IntelliDrawBuffer[last_x][last_y]))
       {
-       last_element_new = EL_ACID;
-       new_element = EL_ACID;
+       int dir = MV_DIR_FROM_BIT(i);
+       int dir_opposite = MV_DIR_OPPOSITE(dir);
+       int last_element_old = IntelliDrawBuffer[last_x][last_y];
+       int last_direction_old = getOpenDirectionFromPool(last_element_old);
+       int last_direction_new = last_direction_old | dir_opposite;
+
+       last_element_new = getPoolFromOpenDirection(last_direction_new);
+
+       direction |= dir;
       }
     }
 
+    /* special corrections needed for intuitively correct acid pool drawing */
+    if (last_element_new == EL_EMPTY)
+      last_element_new = new_element;
+    else if (last_element_new != EL_UNDEFINED)
+      new_element = last_element_new;
+
+    new_element = getPoolFromOpenDirectionNotEmpty(direction, new_element);
+
     if (last_element_new != EL_UNDEFINED)
-      SetElementSimple(last_x, last_y, last_element_new, change_level);
+      MergeAndCloseNeighbourElements(x, y, &new_element,
+                                    last_x, last_y, &last_element_new,
+                                    getClosedPool, change_level);
   }
-  else if (IS_BELT(new_element))
+  else if (IS_EMC_PILLAR(new_element))
   {
     int last_element_new = EL_UNDEFINED;
-    int belt_nr = getBeltNrFromBeltElement(new_element);
-#if 0
-    int belt_left   = getBeltElementFromBeltNrAndBeltDir(belt_nr, MV_LEFT);
-#endif
-    int belt_middle = getBeltElementFromBeltNrAndBeltDir(belt_nr, MV_NONE);
-#if 0
-    int belt_right  = getBeltElementFromBeltNrAndBeltDir(belt_nr, MV_RIGHT);
-#endif
-    boolean last_element_is_neighbour = FALSE;
+    int direction = MV_NONE;
+    int i;
 
-#if 0
-    if (IS_BELT(old_element))
-    {
-      new_element = old_element;
-    }
-#endif
+    /* if old element is of same kind, keep all existing directions */
+    if (IS_EMC_PILLAR(old_element))
+      direction |= getOpenDirectionFromPillar(old_element);
 
-    if (last_x == x - 1 && last_y == y && IN_LEV_FIELD(last_x, last_y) &&
-       IS_BELT(IntelliDrawBuffer[last_x][last_y]))
+    for (i = MV_BIT_UP; i <= MV_BIT_DOWN; i++)
     {
-      last_element_new = IntelliDrawBuffer[last_x][last_y];
+      int xx = x + xy[i][0];
+      int yy = y + xy[i][1];
 
-#if 1
-      last_element_new = belt_middle;
-      new_element = belt_middle;
-#else
-      if (IntelliDrawBuffer[last_x][last_y] == belt_left)
-      {
-       new_element = belt_right;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == belt_right)
+      if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
+         IS_EMC_PILLAR(IntelliDrawBuffer[last_x][last_y]))
       {
-       last_element_new = belt_middle;
-       new_element = belt_right;
-      }
-#endif
+       int dir = MV_DIR_FROM_BIT(i);
+       int dir_opposite = MV_DIR_OPPOSITE(dir);
+       int last_element_old = IntelliDrawBuffer[last_x][last_y];
+       int last_direction_old = getOpenDirectionFromPillar(last_element_old);
+       int last_direction_new = last_direction_old | dir_opposite;
 
-      last_element_is_neighbour = TRUE;
-    }
-    else if (last_x == x + 1 && last_y == y && IN_LEV_FIELD(last_x, last_y) &&
-            IS_BELT(IntelliDrawBuffer[last_x][last_y]))
-    {
-      last_element_new = IntelliDrawBuffer[last_x][last_y];
+       last_element_new = getPillarFromOpenDirection(last_direction_new);
 
-#if 1
-      last_element_new = belt_middle;
-      new_element = belt_middle;
-#else
-      if (IntelliDrawBuffer[last_x][last_y] == belt_left)
-      {
-       last_element_new = belt_middle;
-       new_element = belt_left;
-      }
-      else if (IntelliDrawBuffer[last_x][last_y] == belt_right)
-      {
-       new_element = belt_left;
+       direction |= dir;
       }
-#endif
-
-      last_element_is_neighbour = TRUE;
     }
 
+    new_element = getPillarFromOpenDirectionNotEmpty(direction, new_element);
+
     if (last_element_new != EL_UNDEFINED)
-      SetElementSimple(last_x, last_y, last_element_new, change_level);
+      MergeAndCloseNeighbourElements(x, y, &new_element,
+                                    last_x, last_y, &last_element_new,
+                                    getClosedPillar, change_level);
+  }
+  else if (IS_DC_STEELWALL_2(new_element))
+  {
+    int last_element_new = EL_UNDEFINED;
+    int direction = MV_NONE;
+    int i;
 
-    /* reduce connections of neighbour belt elements to minimal connections */
-    if (last_element_is_neighbour)
+    /* if old element is of same kind, keep all existing directions */
+    if (IS_DC_STEELWALL_2(old_element))
+      direction |= getOpenDirectionFromSteel2(old_element);
+
+    for (i = 0; i < NUM_DIRECTIONS; i++)
     {
-      /* set neighbour belt elements to newly determined belt connections */
-      SetElementSimple(x, y, new_element, change_level);
-      SetElementSimple(last_x, last_y, last_element_new, change_level);
+      int xx = x + xy[i][0];
+      int yy = y + xy[i][1];
+
+      if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
+         IS_DC_STEELWALL_2(IntelliDrawBuffer[last_x][last_y]))
+      {
+       int dir = MV_DIR_FROM_BIT(i);
+       int dir_opposite = MV_DIR_OPPOSITE(dir);
+       int last_element_old = IntelliDrawBuffer[last_x][last_y];
+       int last_direction_old = getOpenDirectionFromSteel2(last_element_old);
+       int last_direction_new = last_direction_old | dir_opposite;
 
-      /* remove all open belt connections of neighbour belt elements */
-      new_element = getClosedBelt(x, y);
-      last_element_new = getClosedBelt(last_x, last_y);
+       last_element_new = getSteel2FromOpenDirection(last_direction_new);
 
-      /* set neighbour belt elements to new, minimized belt connections */
-      SetElementSimple(x, y, new_element, change_level);
-      SetElementSimple(last_x, last_y, last_element_new, change_level);
+       direction |= dir;
+      }
     }
+
+    new_element = getSteel2FromOpenDirectionNotEmpty(direction, new_element);
+
+    if (last_element_new != EL_UNDEFINED)
+      MergeAndCloseNeighbourElements(x, y, &new_element,
+                                    last_x, last_y, &last_element_new,
+                                    getClosedSteel2, change_level);
   }
-  else if (new_element == EL_EMC_WALL_1 ||
-          new_element == EL_EMC_WALL_2 ||
-          new_element == EL_EMC_WALL_3)
+  else if (IS_SP_CHIP(new_element))
   {
     int last_element_new = EL_UNDEFINED;
+    int direction = MV_NONE;
+    int i;
+
+    /* (do not keep existing directions, regardless of kind of old element) */
 
-    if (last_x == x && last_y == y - 1 && IN_LEV_FIELD(last_x, last_y) &&
-       (IntelliDrawBuffer[last_x][last_y] == EL_EMC_WALL_1 ||
-        IntelliDrawBuffer[last_x][last_y] == EL_EMC_WALL_2 ||
-        IntelliDrawBuffer[last_x][last_y] == EL_EMC_WALL_3))
+    for (i = 0; i < NUM_DIRECTIONS; i++)
     {
-      if (IN_LEV_FIELD(last_x, last_y - 1))
+      int xx = x + xy[i][0];
+      int yy = y + xy[i][1];
+
+      if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
+         IS_SP_CHIP(IntelliDrawBuffer[last_x][last_y]))
       {
-       if (IntelliDrawBuffer[last_x][last_y - 1] != EL_EMC_WALL_1 &&
-           IntelliDrawBuffer[last_x][last_y - 1] != EL_EMC_WALL_2)
-         last_element_new = EL_EMC_WALL_1;
-       else if (IntelliDrawBuffer[last_x][last_y - 1] == EL_EMC_WALL_1 ||
-                IntelliDrawBuffer[last_x][last_y - 1] == EL_EMC_WALL_2)
-         last_element_new = EL_EMC_WALL_2;
-      }
+       int dir = MV_DIR_FROM_BIT(i);
+       int dir_opposite = MV_DIR_OPPOSITE(dir);
+       int last_element_old = IntelliDrawBuffer[last_x][last_y];
+       int last_direction_old = getOpenDirectionFromChip(last_element_old);
+       int last_direction_new = last_direction_old | dir_opposite;
 
-      new_element = EL_EMC_WALL_3;
+       if (last_direction_old == MV_NONE)
+       {
+         last_element_new = getChipFromOpenDirection(last_direction_new);
+         direction |= dir;
+       }
+       else if (last_direction_old & (dir | dir_opposite))
+       {
+         direction |= MV_DIR_OPPOSITE(last_direction_old);
+       }
+       else
+       {
+         direction |= MV_DIR_OPPOSITE(dir);
+       }
+      }
     }
-    else if (last_x == x && last_y == y + 1 && IN_LEV_FIELD(last_x, last_y) &&
-            (IntelliDrawBuffer[last_x][last_y] == EL_EMC_WALL_1 ||
-             IntelliDrawBuffer[last_x][last_y] == EL_EMC_WALL_2 ||
-             IntelliDrawBuffer[last_x][last_y] == EL_EMC_WALL_3))
+
+    new_element = getChipFromOpenDirectionNotEmpty(direction, new_element);
+
+    if (last_element_new != EL_UNDEFINED)
+      MergeAndCloseNeighbourElements(x, y, &new_element,
+                                    last_x, last_y, &last_element_new,
+                                    getClosedChip, change_level);
+  }
+  else if (IS_SP_HARDWARE_BASE(new_element))
+  {
+    int nr = GetSimpleRandom(6);
+
+    new_element = (nr == 0 ? EL_SP_HARDWARE_BASE_1 :
+                  nr == 1 ? EL_SP_HARDWARE_BASE_2 :
+                  nr == 2 ? EL_SP_HARDWARE_BASE_3 :
+                  nr == 3 ? EL_SP_HARDWARE_BASE_4 :
+                  nr == 4 ? EL_SP_HARDWARE_BASE_5 : EL_SP_HARDWARE_BASE_6);
+  }
+  else if (new_element == EL_SP_HARDWARE_GREEN ||
+          new_element == EL_SP_HARDWARE_BLUE ||
+          new_element == EL_SP_HARDWARE_RED)
+  {
+    int nr = GetSimpleRandom(3);
+
+    new_element = (nr == 0 ? EL_SP_HARDWARE_GREEN :
+                  nr == 1 ? EL_SP_HARDWARE_BLUE : EL_SP_HARDWARE_RED);
+  }
+  else if (IS_GROUP_ELEMENT(new_element))
+  {
+    boolean connected_drawing = FALSE;
+    int i;
+
+    for (i = 0; i < NUM_DIRECTIONS; i++)
     {
-      if (IN_LEV_FIELD(last_x, last_y + 1))
-      {
-       if (IntelliDrawBuffer[last_x][last_y + 1] != EL_EMC_WALL_2 &&
-           IntelliDrawBuffer[last_x][last_y + 1] != EL_EMC_WALL_3)
-         last_element_new = EL_EMC_WALL_3;
-       else if (IntelliDrawBuffer[last_x][last_y + 1] == EL_EMC_WALL_2 ||
-                IntelliDrawBuffer[last_x][last_y + 1] == EL_EMC_WALL_3)
-         last_element_new = EL_EMC_WALL_2;
-      }
+      int xx = x + xy[i][0];
+      int yy = y + xy[i][1];
 
-      new_element = EL_EMC_WALL_1;
+      if (last_x == xx && last_y == yy && IN_LEV_FIELD(last_x, last_y) &&
+         IS_IN_GROUP_EL(IntelliDrawBuffer[last_x][last_y], new_element))
+       connected_drawing = TRUE;
     }
 
-    if (last_element_new != EL_UNDEFINED)
-      SetElementSimple(last_x, last_y, last_element_new, change_level);
+    if (!connected_drawing)
+      ResolveGroupElement(new_element);
+
+    new_element = GetElementFromGroupElement(new_element);
   }
   else if (IS_BELT_SWITCH(old_element))
   {
@@ -8857,7 +9220,107 @@ static void SetElementIntelliDraw(int x, int y, int new_element,
 
       { -1,                            -1                              },
     };
-    int i;
+    static int rotatable_elements[][4] =
+    {
+      {
+       EL_BUG_UP,
+       EL_BUG_RIGHT,
+       EL_BUG_DOWN,
+       EL_BUG_LEFT
+      },
+
+      {
+       EL_SPACESHIP_UP,
+       EL_SPACESHIP_RIGHT,
+       EL_SPACESHIP_DOWN,
+       EL_SPACESHIP_LEFT
+      },
+
+      {
+       EL_BD_BUTTERFLY_UP,
+       EL_BD_BUTTERFLY_RIGHT,
+       EL_BD_BUTTERFLY_DOWN,
+       EL_BD_BUTTERFLY_LEFT
+      },
+
+      {
+       EL_BD_FIREFLY_UP,
+       EL_BD_FIREFLY_RIGHT,
+       EL_BD_FIREFLY_DOWN,
+       EL_BD_FIREFLY_LEFT
+      },
+
+      {
+       EL_PACMAN_UP,
+       EL_PACMAN_RIGHT,
+       EL_PACMAN_DOWN,
+       EL_PACMAN_LEFT
+      },
+
+      {
+       EL_YAMYAM_UP,
+       EL_YAMYAM_RIGHT,
+       EL_YAMYAM_DOWN,
+       EL_YAMYAM_LEFT
+      },
+
+      {
+       EL_ARROW_UP,
+       EL_ARROW_RIGHT,
+       EL_ARROW_DOWN,
+       EL_ARROW_LEFT
+      },
+
+      {
+       EL_SP_PORT_UP,
+       EL_SP_PORT_RIGHT,
+       EL_SP_PORT_DOWN,
+       EL_SP_PORT_LEFT
+      },
+
+      {
+       EL_SP_GRAVITY_PORT_UP,
+       EL_SP_GRAVITY_PORT_RIGHT,
+       EL_SP_GRAVITY_PORT_DOWN,
+       EL_SP_GRAVITY_PORT_LEFT
+      },
+
+      {
+       EL_MOLE_UP,
+       EL_MOLE_RIGHT,
+       EL_MOLE_DOWN,
+       EL_MOLE_LEFT
+      },
+
+      {
+       EL_BALLOON_SWITCH_UP,
+       EL_BALLOON_SWITCH_RIGHT,
+       EL_BALLOON_SWITCH_DOWN,
+       EL_BALLOON_SWITCH_LEFT
+      },
+
+      {
+       EL_SP_GRAVITY_ON_PORT_UP,
+       EL_SP_GRAVITY_ON_PORT_RIGHT,
+       EL_SP_GRAVITY_ON_PORT_DOWN,
+       EL_SP_GRAVITY_ON_PORT_LEFT
+      },
+
+      {
+       EL_SP_GRAVITY_OFF_PORT_UP,
+       EL_SP_GRAVITY_OFF_PORT_RIGHT,
+       EL_SP_GRAVITY_OFF_PORT_DOWN,
+       EL_SP_GRAVITY_OFF_PORT_LEFT
+      },
+
+      {
+       -1,
+       -1,
+       -1,
+       -1,
+      },
+    };
+    int i, j;
 
     for (i = 0; swappable_elements[i][0] != -1; i++)
     {
@@ -8867,6 +9330,20 @@ static void SetElementIntelliDraw(int x, int y, int new_element,
       if (old_element == element1 || old_element == element2)
        new_element = (old_element == element1 ? element2 : element1);
     }
+
+    for (i = 0; rotatable_elements[i][0] != -1; i++)
+    {
+      for (j = 0; j < 4; j++)
+      {
+       int element = rotatable_elements[i][j];
+
+       if (old_element == element)
+         new_element = (button == 1 ? rotatable_elements[i][(j + 3) % 4] :
+                        button == 2 ? rotatable_elements[i][0]           :
+                        button == 3 ? rotatable_elements[i][(j + 1) % 4] :
+                        old_element);
+      }
+    }
   }
 
   SetElementSimple(x, y, new_element, change_level);
@@ -8883,105 +9360,80 @@ static void ResetIntelliDraw()
     for (y = 0; y < lev_fieldy; y++)
       IntelliDrawBuffer[x][y] = Feld[x][y];
 
-  SetElementIntelliDraw(-1, -1, EL_UNDEFINED, FALSE);
+  SetElementIntelliDraw(-1, -1, EL_UNDEFINED, FALSE, -1);
 }
 
-static void SetElementExt(int x, int y, int element, boolean change_level)
+static void SetElementExt(int x, int y, int element, boolean change_level,
+                         int button)
 {
   if (element < 0)
-  {
-    element = IntelliDrawBuffer[x][y] = Feld[x][y];
-    SetElementSimple(x, y, element, change_level);
-
-    return;
-  }
-
-  if (GetKeyModState() & KMOD_Shift)
-    SetElementIntelliDraw(x, y, element, change_level);
+    SetElementSimple(x, y, Feld[x][y], change_level);
+  else if (GetKeyModState() & KMOD_Shift)
+    SetElementIntelliDraw(x, y, element, change_level, button);
   else
     SetElementSimple(x, y, element, change_level);
 }
 
 static void SetElement(int x, int y, int element)
 {
-  SetElementExt(x, y, element, TRUE);
+  SetElementExt(x, y, element, TRUE, -1);
 }
 
-static void DrawLineElement(int sx, int sy, int element, boolean change_level)
+static void SetElementButton(int x, int y, int element, int button)
 {
-#if 1
-  int lx = sx + level_xpos;
-  int ly = sy + level_ypos;
-
-  SetElementExt(lx, ly, element, change_level);
-
-#else
+  SetElementExt(x, y, element, TRUE, button);
+}
 
+static void DrawLineElement(int sx, int sy, int element, boolean change_level)
+{
   int lx = sx + level_xpos;
   int ly = sy + level_ypos;
-  int element_new = (element < 0 ? Feld[lx][ly] : element);
-
-  DrawMiniElement(sx, sy, element_new);
 
-  if (change_level)
-    Feld[lx][ly] = element;
-#endif
+  SetElementExt(lx, ly, element, change_level, -1);
 }
 
 static void DrawLine(int from_x, int from_y, int to_x, int to_y,
                     int element, boolean change_level)
 {
+  int xsize = ABS(to_x - from_x);
+  int ysize = ABS(to_y - from_y);
+  int dx = (to_x < from_x ? -1 : +1);
+  int dy = (to_y < from_y ? -1 : +1);
+  int i;
+
   if (from_y == to_y)                  /* horizontal line */
   {
-    int x;
-    int y = from_y;
-
-    if (from_x > to_x)
-      swap_numbers(&from_x, &to_x);
-
-    for (x = from_x; x <= to_x; x++)
-      DrawLineElement(x, y, element, change_level);
+    for (i = 0; i <= xsize; i++)
+      DrawLineElement(from_x + i * dx, from_y, element, change_level);
   }
   else if (from_x == to_x)             /* vertical line */
   {
-    int x = from_x;
-    int y;
-
-    if (from_y > to_y)
-      swap_numbers(&from_y, &to_y);
-
-    for (y = from_y; y <= to_y; y++)
-      DrawLineElement(x, y, element, change_level);
+    for (i = 0; i <= ysize; i++)
+      DrawLineElement(from_x, from_y + i * dy, element, change_level);
   }
   else                                 /* diagonal line */
   {
-    int len_x = ABS(to_x - from_x);
-    int len_y = ABS(to_y - from_y);
-    int x, y;
-
-    if (len_y < len_x)                 /* a < 1 */
+    if (ysize < xsize)                 /* a < 1 */
     {
-      float a = (float)len_y / (float)len_x;
-
-      if (from_x > to_x)
-       swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
+      float a = (float)ysize / (float)xsize;
 
-      for (x = 0; x <= len_x; x++)
+      for (i = 0; i <= xsize; i++)
       {
-       y = (int)(a * x + 0.5) * (to_y < from_y ? -1 : +1);
+       int x = dx * i;
+       int y = dy * (int)(a * i + 0.5);
+
        DrawLineElement(from_x + x, from_y + y, element, change_level);
       }
     }
     else                               /* a >= 1 */
     {
-      float a = (float)len_x / (float)len_y;
-
-      if (from_y > to_y)
-       swap_number_pairs(&from_x, &from_y, &to_x, &to_y);
+      float a = (float)xsize / (float)ysize;
 
-      for (y = 0; y <= len_y; y++)
+      for (i = 0; i <= ysize; i++)
       {
-       x = (int)(a * y + 0.5) * (to_x < from_x ? -1 : +1);
+       int x = dx * (int)(a * i + 0.5);
+       int y = dy * i;
+
        DrawLineElement(from_x + x, from_y + y, element, change_level);
       }
     }
@@ -9482,6 +9934,10 @@ static void RandomPlacement(int new_element)
   int num_percentage, num_elements;
   int x, y;
 
+#if 1
+  ResetIntelliDraw();
+#endif
+
   /* determine number of free positions for randomly placing the new element */
   for (x = 0; x < lev_fieldx; x++) for (y = 0; y < lev_fieldy; y++)
   {
@@ -9505,20 +9961,28 @@ static void RandomPlacement(int new_element)
     for (x = 0; x < lev_fieldx; x++)
       for (y = 0; y < lev_fieldy; y++)
        if (free_position[x][y])
+#if 1
+         SetElement(x, y, new_element);
+#else
          Feld[x][y] = new_element;
+#endif
   }
   else
   {
     while (num_elements > 0)
     {
-      x = RND(lev_fieldx);
-      y = RND(lev_fieldy);
+      x = GetSimpleRandom(lev_fieldx);
+      y = GetSimpleRandom(lev_fieldy);
 
       /* don't place element at the same position twice */
       if (free_position[x][y])
       {
        free_position[x][y] = FALSE;
+#if 1
+       SetElement(x, y, new_element);
+#else
        Feld[x][y] = new_element;
+#endif
        num_elements--;
       }
     }
@@ -9687,7 +10151,7 @@ static void HandleDrawingAreas(struct GadgetInfo *gi)
          }
 
 #if 1
-         SetElement(lx, ly, new_element);
+         SetElementButton(lx, ly, new_element, button);
 #else
          Feld[lx][ly] = new_element;
          DrawMiniElement(sx, sy, new_element);
@@ -9872,7 +10336,10 @@ static void HandleCounterButtons(struct GadgetInfo *gi)
   if (counter_id == ED_COUNTER_ID_SELECT_LEVEL)
   {
       LoadLevel(level_nr);
+      LoadScore(level_nr);
+
       TapeErase();
+
       ResetUndoBuffer();
       DrawEditModeWindow();
 
@@ -10470,7 +10937,7 @@ static void HandleControlButtons(struct GadgetInfo *gi)
       break;
 
     case GADGET_ID_EXIT:
-      RequestExitLevelEditor(TRUE);    /* if level has changed, ask user */
+      RequestExitLevelEditor(TRUE, FALSE);  /* if level has changed, ask user */
       break;
 
     default:
@@ -10649,7 +11116,7 @@ void HandleLevelEditorKeyInput(Key key)
       case KSYM_Escape:
         if (edit_mode == ED_MODE_DRAWING)
        {
-         RequestExitLevelEditor(setup.ask_on_escape_editor);
+         RequestExitLevelEditor(setup.ask_on_escape_editor, TRUE);
        }
         else if (edit_mode == ED_MODE_INFO)
        {
@@ -10920,7 +11387,8 @@ static void HandleDrawingAreaInfo(struct GadgetInfo *gi)
     DrawTextS(INFOTEXT_XPOS - SX, INFOTEXT_YPOS - SY, FONT_TEXT_2, infotext);
 }
 
-void RequestExitLevelEditor(boolean ask_if_level_has_changed)
+void RequestExitLevelEditor(boolean ask_if_level_has_changed,
+                           boolean quick_quit)
 {
   if (!ask_if_level_has_changed ||
       !LevelChanged() ||
@@ -10929,8 +11397,21 @@ void RequestExitLevelEditor(boolean ask_if_level_has_changed)
   {
     CloseDoor(DOOR_CLOSE_1);
     SetDoorState(DOOR_CLOSE_2);
+
+#if 1
+    if (quick_quit)
+      FadeSkipNextFadeIn();
+#else
+    if (quick_quit)
+      fading = fading_none;
+#endif
+
     game_status = GAME_MODE_MAIN;
+#if 1
+    DrawAndFadeInMainMenu(REDRAW_FIELD);
+#else
     DrawMainMenu();
+#endif
   }
   else
   {