-#endif
-
-#if 0
- printf("::: passing port %d,%d [%d]\n", x, y, FrameCounter);
-#endif
-
- PlayLevelSound(x, y, SND_CLASS_SP_PORT_PASSING);
- break;
-#endif
-
-#if 0
- case EL_TUBE_ANY:
- case EL_TUBE_VERTICAL:
- case EL_TUBE_HORIZONTAL:
- case EL_TUBE_VERTICAL_LEFT:
- case EL_TUBE_VERTICAL_RIGHT:
- case EL_TUBE_HORIZONTAL_UP:
- case EL_TUBE_HORIZONTAL_DOWN:
- case EL_TUBE_LEFT_UP:
- case EL_TUBE_LEFT_DOWN:
- case EL_TUBE_RIGHT_UP:
- case EL_TUBE_RIGHT_DOWN:
- {
- int i = 0;
- int tube_enter_directions[][2] =
- {
- { EL_TUBE_ANY, MV_LEFT | MV_RIGHT | MV_UP | MV_DOWN },
- { EL_TUBE_VERTICAL, MV_UP | MV_DOWN },
- { EL_TUBE_HORIZONTAL, MV_LEFT | MV_RIGHT },
- { EL_TUBE_VERTICAL_LEFT, MV_RIGHT | MV_UP | MV_DOWN },
- { EL_TUBE_VERTICAL_RIGHT, MV_LEFT | MV_UP | MV_DOWN },
- { EL_TUBE_HORIZONTAL_UP, MV_LEFT | MV_RIGHT | MV_DOWN },
- { EL_TUBE_HORIZONTAL_DOWN, MV_LEFT | MV_RIGHT | MV_UP },
- { EL_TUBE_LEFT_UP, MV_RIGHT | MV_DOWN },
- { EL_TUBE_LEFT_DOWN, MV_RIGHT | MV_UP },
- { EL_TUBE_RIGHT_UP, MV_LEFT | MV_DOWN },
- { EL_TUBE_RIGHT_DOWN, MV_LEFT | MV_UP },
- { -1, MV_NO_MOVING }
- };
-
- while (tube_enter_directions[i][0] != element)
- {
- i++;
- if (tube_enter_directions[i][0] == -1) /* should not happen */
- break;
- }
-
- if (!(tube_enter_directions[i][1] & move_direction))
- return MF_NO_ACTION; /* tube has no opening in this direction */
-
- PlayLevelSound(x, y, SND_CLASS_TUBE_WALKING);
- }
- break;
-#endif
-
- default:
-
-#if 1
- if (IS_WALKABLE(element) && ACCESS_FROM(element, opposite_direction))
-#else
- if (IS_WALKABLE(element))
-#endif
- {
- int sound_element = SND_ELEMENT(element);
- int sound_action = ACTION_WALKING;
-
-#if 0
- if (!ACCESS_FROM(element, opposite_direction))
- return MF_NO_ACTION; /* field not accessible from this direction */
-#endif
-
-#if 0
- if (element == EL_EMPTY_SPACE &&
- game.gravity && !player->is_auto_moving &&
- canFallDown(player) && move_direction != MV_DOWN)
- return MF_NO_ACTION; /* player cannot walk here due to gravity */
-#endif
-
- if (IS_GATE(element))
- {
- if (!player->key[element - EL_GATE_1])
- return MF_NO_ACTION;
- }
- else if (IS_GATE_GRAY(element))
- {
- if (!player->key[element - EL_GATE_1_GRAY])
- return MF_NO_ACTION;
- }
- else if (element == EL_EXIT_OPEN ||
- element == EL_SP_EXIT_OPEN ||
- element == EL_SP_EXIT_OPENING)
- {
- sound_action = ACTION_PASSING; /* player is passing exit */
- }
- else if (element == EL_EMPTY)
- {
- sound_action = ACTION_MOVING; /* nothing to walk on */
- }
-
- /* play sound from background or player, whatever is available */
- if (element_info[sound_element].sound[sound_action] != SND_UNDEFINED)
- PlayLevelSoundElementAction(x, y, sound_element, sound_action);
- else
- PlayLevelSoundElementAction(x, y, player->element_nr, sound_action);
-
- break;
- }
-#if 1
- else if (IS_PASSABLE(element) && canPassField(x, y, move_direction))
-#else
- else if (IS_PASSABLE(element))
-#endif
- {
-#if 0
- if (!canPassField(x, y, move_direction))
- return MF_NO_ACTION;
-#else
-
-#if 0
-#if 1
- if (!IN_LEV_FIELD(nextx, nexty) || IS_PLAYER(nextx, nexty) ||
- !IS_WALKABLE_FROM(Feld[nextx][nexty], move_direction) ||
- (!level.can_pass_to_walkable && !IS_FREE(nextx, nexty)))
- return MF_NO_ACTION;
-#else
- if (!IN_LEV_FIELD(nextx, nexty) || !IS_FREE(nextx, nexty))
- return MF_NO_ACTION;
-#endif
-#endif
-
-#if 1
- if (!ACCESS_FROM(element, opposite_direction))
- return MF_NO_ACTION; /* field not accessible from this direction */
-#else
- if (IS_CUSTOM_ELEMENT(element) &&
- !ACCESS_FROM(element, opposite_direction))
- return MF_NO_ACTION; /* field not accessible from this direction */
-#endif
-
-#if 1
- if (CAN_MOVE(element)) /* only fixed elements can be passed! */
- return MF_NO_ACTION;
-#endif
-
-#endif
-
- if (IS_EM_GATE(element))
- {
- if (!player->key[element - EL_EM_GATE_1])
- return MF_NO_ACTION;
- }
- else if (IS_EM_GATE_GRAY(element))
- {
- if (!player->key[element - EL_EM_GATE_1_GRAY])
- return MF_NO_ACTION;
- }
- else if (IS_SP_PORT(element))
- {
- if (element == EL_SP_GRAVITY_PORT_LEFT ||
- element == EL_SP_GRAVITY_PORT_RIGHT ||
- element == EL_SP_GRAVITY_PORT_UP ||
- element == EL_SP_GRAVITY_PORT_DOWN)
- game.gravity = !game.gravity;
- }
-
- /* automatically move to the next field with double speed */
- player->programmed_action = move_direction;
-#if 1
- if (player->move_delay_reset_counter == 0)
- {
- player->move_delay_reset_counter = 2; /* two double speed steps */