+ else if (element_info[element].move_pattern == MV_ALL_DIRECTIONS ||
+ element_info[element].move_pattern == MV_TURNING_LEFT ||
+ element_info[element].move_pattern == MV_TURNING_RIGHT)
+ {
+ boolean can_turn_left = ELEMENT_CAN_ENTER_FIELD(element, left_x, left_y);
+ boolean can_turn_right = ELEMENT_CAN_ENTER_FIELD(element, right_x,right_y);
+
+ if (element_info[element].move_pattern == MV_TURNING_LEFT)
+ MovDir[x][y] = left_dir;
+ else if (element_info[element].move_pattern == MV_TURNING_RIGHT)
+ MovDir[x][y] = right_dir;
+ else if (can_turn_left && can_turn_right)
+ MovDir[x][y] = (RND(3) ? (RND(2) ? left_dir : right_dir) : back_dir);
+ else if (can_turn_left)
+ MovDir[x][y] = (RND(2) ? left_dir : back_dir);
+ else if (can_turn_right)
+ MovDir[x][y] = (RND(2) ? right_dir : back_dir);
+ else
+ MovDir[x][y] = back_dir;
+
+ MovDelay[x][y] = GET_NEW_MOVE_DELAY(element);
+ }
+ else if (element_info[element].move_pattern == MV_HORIZONTAL ||
+ element_info[element].move_pattern == MV_VERTICAL)
+ {
+ if (element_info[element].move_pattern & old_move_dir)
+ MovDir[x][y] = back_dir;
+ else if (element_info[element].move_pattern == MV_HORIZONTAL)
+ MovDir[x][y] = (RND(2) ? MV_LEFT : MV_RIGHT);
+ else if (element_info[element].move_pattern == MV_VERTICAL)
+ MovDir[x][y] = (RND(2) ? MV_UP : MV_DOWN);
+
+ MovDelay[x][y] = GET_NEW_MOVE_DELAY(element);
+ }
+ else if (element_info[element].move_pattern & MV_ANY_DIRECTION)
+ {
+ MovDir[x][y] = element_info[element].move_pattern;
+ MovDelay[x][y] = GET_NEW_MOVE_DELAY(element);
+ }
+ else if (element_info[element].move_pattern == MV_ALONG_LEFT_SIDE)
+ {
+ if (ELEMENT_CAN_ENTER_FIELD(element, left_x, left_y))
+ MovDir[x][y] = left_dir;
+ else if (!ELEMENT_CAN_ENTER_FIELD(element, move_x, move_y))
+ MovDir[x][y] = right_dir;
+
+ if (MovDir[x][y] != old_move_dir)
+ MovDelay[x][y] = GET_NEW_MOVE_DELAY(element);
+ }
+ else if (element_info[element].move_pattern == MV_ALONG_RIGHT_SIDE)
+ {
+ if (ELEMENT_CAN_ENTER_FIELD(element, right_x, right_y))
+ MovDir[x][y] = right_dir;
+ else if (!ELEMENT_CAN_ENTER_FIELD(element, move_x, move_y))
+ MovDir[x][y] = left_dir;
+
+ if (MovDir[x][y] != old_move_dir)
+ MovDelay[x][y] = GET_NEW_MOVE_DELAY(element);
+ }
+ else if (element_info[element].move_pattern == MV_TOWARDS_PLAYER ||
+ element_info[element].move_pattern == MV_AWAY_FROM_PLAYER)
+ {
+ int attr_x = -1, attr_y = -1;
+ int newx, newy;
+ boolean move_away =
+ (element_info[element].move_pattern == MV_AWAY_FROM_PLAYER);
+
+ if (AllPlayersGone)
+ {
+ attr_x = ExitX;
+ attr_y = ExitY;
+ }
+ else
+ {
+ int i;
+
+ for (i=0; i<MAX_PLAYERS; i++)
+ {
+ struct PlayerInfo *player = &stored_player[i];
+ int jx = player->jx, jy = player->jy;
+
+ if (!player->active)
+ continue;
+
+ if (attr_x == -1 ||
+ ABS(jx - x) + ABS(jy - y) < ABS(attr_x - x) + ABS(attr_y - y))
+ {
+ attr_x = jx;
+ attr_y = jy;
+ }
+ }
+ }
+
+ MovDir[x][y] = MV_NO_MOVING;
+ if (attr_x < x)
+ MovDir[x][y] |= (move_away ? MV_RIGHT : MV_LEFT);
+ else if (attr_x > x)
+ MovDir[x][y] |= (move_away ? MV_LEFT : MV_RIGHT);
+ if (attr_y < y)
+ MovDir[x][y] |= (move_away ? MV_DOWN : MV_UP);
+ else if (attr_y > y)
+ MovDir[x][y] |= (move_away ? MV_UP : MV_DOWN);
+
+ MovDelay[x][y] = GET_NEW_MOVE_DELAY(element);
+
+ if (MovDir[x][y] & MV_HORIZONTAL && MovDir[x][y] & MV_VERTICAL)
+ {
+ boolean first_horiz = RND(2);
+ int new_move_dir = MovDir[x][y];
+
+ MovDir[x][y] =
+ new_move_dir & (first_horiz ? MV_HORIZONTAL : MV_VERTICAL);
+ Moving2Blocked(x, y, &newx, &newy);
+
+ if (ELEMENT_CAN_ENTER_FIELD_OR_ACID(element, newx, newy))
+ return;
+
+ MovDir[x][y] =
+ new_move_dir & (!first_horiz ? MV_HORIZONTAL : MV_VERTICAL);
+ Moving2Blocked(x, y, &newx, &newy);
+
+ if (ELEMENT_CAN_ENTER_FIELD_OR_ACID(element, newx, newy))
+ return;
+
+ MovDir[x][y] = old_move_dir;
+ }
+ }