+static boolean LevelChanged()
+{
+ boolean field_changed = FALSE;
+ int x, y;
+
+ if (leveldir_current->readonly)
+ return FALSE;
+
+ for (y = 0; y < lev_fieldy; y++)
+ for (x = 0; x < lev_fieldx; x++)
+ if (Feld[x][y] != level.field[x][y])
+ field_changed = TRUE;
+
+ return (level.changed || field_changed);
+}
+
+static boolean LevelContainsPlayer()
+{
+ boolean player_found = FALSE;
+ int x, y;
+
+ return TRUE; /* !!! CURRENTLY DEACTIVATED !!! */
+
+ for (y = 0; y < lev_fieldy; y++)
+ for (x = 0; x < lev_fieldx; x++)
+ if (Feld[x][y] == EL_PLAYER_1 ||
+ Feld[x][y] == EL_SP_MURPHY)
+ player_found = TRUE;
+
+ return player_found;
+}
+
+static void CopyPlayfield(short src[MAX_LEV_FIELDX][MAX_LEV_FIELDY],
+ short dst[MAX_LEV_FIELDX][MAX_LEV_FIELDY])
+{
+ int x, y;
+
+ for (x = 0; x < lev_fieldx; x++)
+ for (y = 0; y < lev_fieldy; y++)
+ dst[x][y] = src[x][y];
+}
+
+static int setSelectboxValue(int selectbox_id, int new_value)
+{
+ int new_index_value = 0;
+ int i;
+
+ for (i = 0; selectbox_info[selectbox_id].options[i].text != NULL; i++)
+ if (selectbox_info[selectbox_id].options[i].value == new_value)
+ new_index_value = i;
+
+ *selectbox_info[selectbox_id].value =
+ selectbox_info[selectbox_id].options[new_index_value].value;
+
+ return new_index_value;
+}
+
+static void copy_custom_element_settings(int element_from, int element_to)
+{
+#if 0
+ struct ElementInfo ei_to_old = element_info[element_to];
+ struct ElementInfo *ei_from = &element_info[element_from];
+ struct ElementInfo *ei_to = &element_info[element_to];
+ int i;
+
+ /* ---------- copy whole element structure ---------- */
+ *ei_to = *ei_from;
+
+ /* ---------- restore structure pointers which cannot be copied ---------- */
+ ei_to->token_name = ei_to_old.token_name;
+ ei_to->class_name = ei_to_old.class_name;
+ ei_to->editor_description = ei_to_old.editor_description;
+ ei_to->custom_description = ei_to_old.custom_description;
+ ei_to->change_page = ei_to_old.change_page;
+ ei_to->change = ei_to_old.change;
+ ei_to->group = ei_to_old.group;
+
+ /* ---------- copy element base properties ---------- */
+ Properties[element_to][EP_BITFIELD_BASE] =
+ Properties[element_from][EP_BITFIELD_BASE];
+
+ /* ---------- reinitialize and copy change pages ---------- */
+ setElementChangePages(ei_to, ei_to->num_change_pages);
+
+ for (i=0; i < ei_to->num_change_pages; i++)
+ ei_to->change_page[i] = ei_from->change_page[i];
+
+ /* ---------- copy group element info ---------- */
+ if (ei_from->group != NULL && ei_to->group != NULL) /* group or internal */
+ *ei_to->group = *ei_from->group;
+
+#else
+
+ struct ElementInfo *ei_from = &element_info[element_from];
+ struct ElementInfo *ei_to = &element_info[element_to];
+ int i, x, y;
+
+ /* ---------- copy element description ---------- */
+ for (i = 0; i < MAX_ELEMENT_NAME_LEN + 1; i++)
+ ei_to->description[i] = ei_from->description[i];
+
+ /* ---------- copy element base properties ---------- */
+ Properties[element_to][EP_BITFIELD_BASE] =
+ Properties[element_from][EP_BITFIELD_BASE];
+
+ /* ---------- copy custom property values ---------- */
+
+ ei_to->use_gfx_element = ei_from->use_gfx_element;
+ ei_to->gfx_element = ei_from->gfx_element;
+
+ ei_to->access_direction = ei_from->access_direction;
+
+ ei_to->collect_score = ei_from->collect_score;
+ ei_to->collect_count = ei_from->collect_count;
+
+ ei_to->push_delay_fixed = ei_from->push_delay_fixed;
+ ei_to->push_delay_random = ei_from->push_delay_random;
+ ei_to->drop_delay_fixed = ei_from->drop_delay_fixed;
+ ei_to->drop_delay_random = ei_from->drop_delay_random;
+ ei_to->move_delay_fixed = ei_from->move_delay_fixed;
+ ei_to->move_delay_random = ei_from->move_delay_random;
+
+ ei_to->move_pattern = ei_from->move_pattern;
+ ei_to->move_direction_initial = ei_from->move_direction_initial;
+ ei_to->move_stepsize = ei_from->move_stepsize;
+
+ ei_to->move_enter_element = ei_from->move_enter_element;
+ ei_to->move_leave_element = ei_from->move_leave_element;
+ ei_to->move_leave_type = ei_from->move_leave_type;
+
+ ei_to->slippery_type = ei_from->slippery_type;
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ ei_to->content[x][y] = ei_from->content[x][y];
+
+ ei_to->explosion_type = ei_from->explosion_type;
+ ei_to->explosion_delay = ei_from->explosion_delay;
+ ei_to->ignition_delay = ei_from->ignition_delay;
+
+ /* ---------- reinitialize and copy change pages ---------- */
+
+ ei_to->num_change_pages = ei_from->num_change_pages;
+ ei_to->current_change_page = ei_from->current_change_page;
+
+ setElementChangePages(ei_to, ei_to->num_change_pages);
+
+ for (i=0; i < ei_to->num_change_pages; i++)
+ ei_to->change_page[i] = ei_from->change_page[i];
+
+ /* ---------- copy group element info ---------- */
+ if (ei_from->group != NULL && ei_to->group != NULL) /* group or internal */
+ *ei_to->group = *ei_from->group;
+
+#endif
+
+ /* mark this custom element as modified */
+ ei_to->modified_settings = TRUE;
+}
+
+static void replace_custom_element_in_settings(int element_from,
+ int element_to)
+{
+ int i, j, x, y;
+
+ for (i = 0; i < NUM_FILE_ELEMENTS; i++)
+ {
+ struct ElementInfo *ei = &element_info[i];
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ if (ei->content[x][y] == element_from)
+ ei->content[x][y] = element_to;
+
+ for (j = 0; j < ei->num_change_pages; j++)
+ {
+ struct ElementChangeInfo *change = &ei->change_page[j];
+
+ if (change->target_element == element_from)
+ change->target_element = element_to;
+
+ if (change->trigger_element == element_from)
+ change->trigger_element = element_to;
+
+ for (y = 0; y < 3; y++)
+ for (x = 0; x < 3; x++)
+ if (change->target_content[x][y] == element_from)
+ change->target_content[x][y] = element_to;
+ }
+
+ if (ei->group != NULL) /* group or internal */
+ for (j = 0; j < MAX_ELEMENTS_IN_GROUP; j++)
+ if (ei->group->element[j] == element_from)
+ ei->group->element[j] = element_to;
+ }
+}
+
+static void replace_custom_element_in_playfield(int element_from,
+ int element_to)
+{
+ int x, y;
+
+ for (x = 0; x < lev_fieldx; x++)
+ for (y = 0; y < lev_fieldy; y++)
+ if (Feld[x][y] == element_from)
+ Feld[x][y] = element_to;
+}
+
+static boolean CopyCustomElement(int element_old, int element_new,
+ int copy_mode)
+{
+ if (copy_mode == GADGET_ID_CUSTOM_COPY)
+ {
+ element_new = (IS_CUSTOM_ELEMENT(element_old) ?
+ EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
+ copy_mode = GADGET_ID_CUSTOM_COPY_TO;
+ }
+ else if (copy_mode == GADGET_ID_CUSTOM_PASTE)
+ {
+ element_old = (IS_CUSTOM_ELEMENT(element_new) ?
+ EL_INTERNAL_CLIPBOARD_CUSTOM : EL_INTERNAL_CLIPBOARD_GROUP);
+ copy_mode = GADGET_ID_CUSTOM_COPY_TO;
+
+ level.changed = TRUE;
+ }
+ else if (IS_CUSTOM_ELEMENT(element_old) && !IS_CUSTOM_ELEMENT(element_new))
+ {
+ Request("Please choose custom element !", REQ_CONFIRM);
+
+ return FALSE;
+ }
+ else if (IS_GROUP_ELEMENT(element_old) && !IS_GROUP_ELEMENT(element_new))
+ {
+ Request("Please choose group element !", REQ_CONFIRM);
+
+ return FALSE;
+ }
+ else
+ {
+ level.changed = TRUE;
+ }
+
+ if (copy_mode == GADGET_ID_CUSTOM_COPY_FROM)
+ {
+ copy_custom_element_settings(element_new, element_old);
+ }
+ else if (copy_mode == GADGET_ID_CUSTOM_COPY_TO)
+ {
+ copy_custom_element_settings(element_old, element_new);
+ }
+ else if (copy_mode == GADGET_ID_CUSTOM_EXCHANGE)
+ {
+ copy_custom_element_settings(element_old, EL_INTERNAL_DUMMY);
+ copy_custom_element_settings(element_new, element_old);
+ copy_custom_element_settings(EL_INTERNAL_DUMMY, element_new);
+
+ replace_custom_element_in_settings(element_old, EL_INTERNAL_DUMMY);
+ replace_custom_element_in_settings(element_new, element_old);
+ replace_custom_element_in_settings(EL_INTERNAL_DUMMY, element_new);
+
+ replace_custom_element_in_playfield(element_old, EL_INTERNAL_DUMMY);
+ replace_custom_element_in_playfield(element_new, element_old);
+ replace_custom_element_in_playfield(EL_INTERNAL_DUMMY, element_new);
+ }
+
+ UpdateCustomElementGraphicGadgets();
+ DrawPropertiesWindow();
+
+ return TRUE;
+}
+
+static void CopyCustomElementPropertiesToEditor(int element)
+{
+ int i;
+ int current_change_page = element_info[element].current_change_page;
+
+ /* dynamically (re)build selectbox for selecting change page */
+ for (i = 0; i < element_info[element].num_change_pages; i++)
+ {
+ sprintf(options_change_page_strings[i], "%d", i + 1);
+
+ options_change_page[i].value = i;
+ options_change_page[i].text = options_change_page_strings[i];
+ }
+
+ options_change_page[i].value = -1;
+ options_change_page[i].text = NULL;
+
+ /* needed here to initialize combined element properties */
+ InitElementPropertiesEngine(level.game_version);
+
+ element_info[element].change =
+ &element_info[element].change_page[current_change_page];
+
+ custom_element = element_info[element];
+ custom_element_change = *element_info[element].change;
+
+ /* needed to initially set selectbox value variables to reliable defaults */
+ for (i = 0; i < ED_NUM_SELECTBOX; i++)
+ setSelectboxValue(i, *selectbox_info[i].value);
+
+ for (i = 0; i < NUM_ELEMENT_PROPERTIES; i++)
+ custom_element_properties[i] = HAS_PROPERTY(element, i);
+
+ for (i = 0; i < NUM_CHANGE_EVENTS; i++)
+ custom_element_change_events[i] = HAS_CHANGE_EVENT(element, i);
+
+ /* ---------- element settings: configure (custom elements) ------------- */
+
+ /* set accessible layer selectbox help value */
+ custom_element.access_type =
+ (IS_WALKABLE(element) ? EP_WALKABLE :
+ IS_PASSABLE(element) ? EP_PASSABLE :
+ custom_element.access_type);
+ custom_element.access_layer =
+ (IS_ACCESSIBLE_OVER(element) ? EP_ACCESSIBLE_OVER :
+ IS_ACCESSIBLE_INSIDE(element) ? EP_ACCESSIBLE_INSIDE :
+ IS_ACCESSIBLE_UNDER(element) ? EP_ACCESSIBLE_UNDER :
+ custom_element.access_layer);
+ custom_element.access_protected =
+ (IS_PROTECTED(element) ? 1 : 0);
+ custom_element_properties[EP_ACCESSIBLE] =
+ (IS_ACCESSIBLE_OVER(element) ||
+ IS_ACCESSIBLE_INSIDE(element) ||
+ IS_ACCESSIBLE_UNDER(element));
+
+ /* set walk-to-object action selectbox help value */
+ custom_element.walk_to_action =
+ (IS_DIGGABLE(element) ? EP_DIGGABLE :
+ IS_COLLECTIBLE_ONLY(element) ? EP_COLLECTIBLE_ONLY :
+ IS_DROPPABLE(element) ? EP_DROPPABLE :
+ IS_THROWABLE(element) ? EP_THROWABLE :
+ IS_PUSHABLE(element) ? EP_PUSHABLE :
+ custom_element.walk_to_action);
+ custom_element_properties[EP_WALK_TO_OBJECT] =
+ (IS_DIGGABLE(element) ||
+ IS_COLLECTIBLE_ONLY(element) ||
+ IS_DROPPABLE(element) ||
+ IS_THROWABLE(element) ||
+ IS_PUSHABLE(element));
+
+ /* set smash targets selectbox help value */
+ custom_element.smash_targets =
+ (CAN_SMASH_EVERYTHING(element) ? EP_CAN_SMASH_EVERYTHING :
+ CAN_SMASH_ENEMIES(element) ? EP_CAN_SMASH_ENEMIES :
+ CAN_SMASH_PLAYER(element) ? EP_CAN_SMASH_PLAYER :
+ custom_element.smash_targets);
+ custom_element_properties[EP_CAN_SMASH] =
+ (CAN_SMASH_EVERYTHING(element) ||
+ CAN_SMASH_ENEMIES(element) ||
+ CAN_SMASH_PLAYER(element));
+
+ /* set deadliness selectbox help value */
+ custom_element.deadliness =
+ (DONT_TOUCH(element) ? EP_DONT_TOUCH :
+ 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_COLLIDE_WITH(element) ||
+ DONT_RUN_INTO(element));
+
+#if 0
+ /* set explosion type selectbox help value */
+ custom_element.explosion_type =
+ (
+#if 0
+ IS_INDESTRUCTIBLE(element) ? EP_INDESTRUCTIBLE :
+#endif
+ CAN_EXPLODE_1X1(element) ? EP_CAN_EXPLODE_1X1 :
+ CAN_EXPLODE_3X3(element) ? EP_CAN_EXPLODE_3X3 :
+ CAN_EXPLODE_CROSS(element) ? EP_CAN_EXPLODE_CROSS :
+ custom_element.explosion_type);
+ custom_element_properties[EP_CAN_EXPLODE_AT_ALL] =
+ (
+#if 0
+ IS_INDESTRUCTIBLE(element) ||
+#endif
+ CAN_EXPLODE_1X1(element) ||
+ CAN_EXPLODE_3X3(element) ||
+ CAN_EXPLODE_CROSS(element));
+#endif
+
+#if 0
+ /* special case: sub-settings dependent from main setting */
+#if 0
+ custom_element.can_explode_by_fire = CAN_EXPLODE_BY_FIRE(element);
+ custom_element.can_explode_smashed = CAN_EXPLODE_SMASHED(element);
+ custom_element.can_explode_impact = CAN_EXPLODE_IMPACT(element);
+#else
+ if (CAN_EXPLODE_BY_FIRE(element))
+ custom_element.can_explode_by_fire = TRUE;
+ if (CAN_EXPLODE_SMASHED(element))
+ custom_element.can_explode_smashed = TRUE;
+ if (CAN_EXPLODE_IMPACT(element))
+ custom_element.can_explode_impact = TRUE;
+#endif
+#endif
+
+ /* ---------- element settings: advanced (custom elements) --------------- */
+
+ /* set "change by direct action" selectbox help value */
+ custom_element_change.direct_action =
+ (HAS_CHANGE_EVENT(element, CE_TOUCHED_BY_PLAYER) ? CE_TOUCHED_BY_PLAYER :
+ HAS_CHANGE_EVENT(element, CE_PRESSED_BY_PLAYER) ? CE_PRESSED_BY_PLAYER :
+ HAS_CHANGE_EVENT(element, CE_PUSHED_BY_PLAYER) ? CE_PUSHED_BY_PLAYER :
+ HAS_CHANGE_EVENT(element, CE_ENTERED_BY_PLAYER) ? CE_ENTERED_BY_PLAYER :
+ HAS_CHANGE_EVENT(element, CE_LEFT_BY_PLAYER) ? CE_LEFT_BY_PLAYER :
+ HAS_CHANGE_EVENT(element, CE_DROPPED_BY_PLAYER) ? CE_DROPPED_BY_PLAYER :
+ HAS_CHANGE_EVENT(element, CE_SWITCHED) ? CE_SWITCHED :
+ HAS_CHANGE_EVENT(element, CE_HITTING_SOMETHING) ? CE_HITTING_SOMETHING :
+ HAS_CHANGE_EVENT(element, CE_HIT_BY_SOMETHING) ? CE_HIT_BY_SOMETHING :
+ HAS_CHANGE_EVENT(element, CE_BLOCKED) ? CE_BLOCKED :
+ HAS_CHANGE_EVENT(element, CE_IMPACT) ? CE_IMPACT :
+ HAS_CHANGE_EVENT(element, CE_SMASHED) ? CE_SMASHED :
+ 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 :
+ custom_element_change.other_action);
+}
+
+static void CopyGroupElementPropertiesToEditor(int element)