diff options
Diffstat (limited to 'src/station.cpp')
| -rw-r--r-- | src/station.cpp | 69 |
1 files changed, 38 insertions, 31 deletions
diff --git a/src/station.cpp b/src/station.cpp index 7a6d1a7e0..69f34f20f 100644 --- a/src/station.cpp +++ b/src/station.cpp @@ -55,12 +55,12 @@ Station::Station(TileIndex tile) } /** -* Clean up a station by clearing vehicle orders and invalidating windows. -* Aircraft-Hangar orders need special treatment here, as the hangars are -* actually part of a station (tiletype is STATION), but the order type -* is OT_GOTO_DEPOT. -* @param st Station to be deleted -*/ + * Clean up a station by clearing vehicle orders and invalidating windows. + * Aircraft-Hangar orders need special treatment here, as the hangars are + * actually part of a station (tiletype is STATION), but the order type + * is OT_GOTO_DEPOT. + * @param st Station to be deleted + */ Station::~Station() { DEBUG(station, cDebugCtorLevel, "I-%3d", index); @@ -75,7 +75,7 @@ Station::~Station() /* Now delete all orders that go to the station */ RemoveOrderFromAllVehicles(OT_GOTO_STATION, index); - //Subsidies need removal as well + /* Subsidies need removal as well */ DeleteSubsidyWithStation(index); free(speclist); @@ -123,7 +123,7 @@ void Station::MarkTilesDirty() const TileIndex tile = train_tile; int w, h; - // XXX No station is recorded as 0, not INVALID_TILE... + /* XXX No station is recorded as 0, not INVALID_TILE... */ if (tile == 0) return; for (h = 0; h < trainst_h; h++) { @@ -196,14 +196,16 @@ bool StationRect::BeforeAddTile(TileIndex tile, StationRectMode mode) int x = TileX(tile); int y = TileY(tile); if (IsEmpty()) { - // we are adding the first station tile + /* we are adding the first station tile */ left = right = x; top = bottom = y; + } else if (!PtInRectXY(x, y)) { - // current rect is not empty and new point is outside this rect - // make new spread-out rectangle + /* current rect is not empty and new point is outside this rect */ + /* make new spread-out rectangle */ Rect new_rect = {min(x, left), min(y, top), max(x, right), max(y, bottom)}; - // check new rect dimensions against preset max + + /* check new rect dimensions against preset max */ int w = new_rect.right - new_rect.left + 1; int h = new_rect.bottom - new_rect.top + 1; if (mode != ADD_FORCE && (w > _patches.station_spread || h > _patches.station_spread)) { @@ -211,9 +213,10 @@ bool StationRect::BeforeAddTile(TileIndex tile, StationRectMode mode) _error_message = STR_306C_STATION_TOO_SPREAD_OUT; return false; } - // spread-out ok, return true + + /* spread-out ok, return true */ if (mode != ADD_TEST) { - // we should update the station rect + /* we should update the station rect */ *this = new_rect; } } else { @@ -232,9 +235,11 @@ bool StationRect::BeforeAddRect(TileIndex tile, int w, int h, StationRectMode mo TileIndex top_left = TileXY(left_a, top_a); int width = right_a - left_a + 1; int height = bottom_a - top_a + 1; + BEGIN_TILE_LOOP(tile, width, height, top_left) if (IsTileType(tile, MP_STATION) && GetStationIndex(tile) == st_id) return true; END_TILE_LOOP(tile, width, height, top_left); + return false; } @@ -242,43 +247,45 @@ bool StationRect::AfterRemoveTile(Station *st, TileIndex tile) { int x = TileX(tile); int y = TileY(tile); - bool reduce_x, reduce_y; - // look if removed tile was on the bounding rect edge - // and try to reduce the rect by this edge - // do it until we have empty rect or nothing to do + /* look if removed tile was on the bounding rect edge + * and try to reduce the rect by this edge + * do it until we have empty rect or nothing to do */ for (;;) { - // check if removed tile is on rect edge + /* check if removed tile is on rect edge */ bool left_edge = (x == left); bool right_edge = (x == right); bool top_edge = (y == top); bool bottom_edge = (y == bottom); - // can we reduce the rect in either direction? - reduce_x = ((left_edge || right_edge) && !ScanForStationTiles(st->index, x, top, x, bottom)); - reduce_y = ((top_edge || bottom_edge) && !ScanForStationTiles(st->index, left, y, right, y)); + + /* can we reduce the rect in either direction? */ + bool reduce_x = ((left_edge || right_edge) && !ScanForStationTiles(st->index, x, top, x, bottom)); + bool reduce_y = ((top_edge || bottom_edge) && !ScanForStationTiles(st->index, left, y, right, y)); if (!(reduce_x || reduce_y)) break; // nothing to do (can't reduce) + if (reduce_x) { - // reduce horizontally + /* reduce horizontally */ if (left_edge) { - // move left edge right + /* move left edge right */ left = x = x + 1; } else { - // move right edge left + /* move right edge left */ right = x = x - 1; } } if (reduce_y) { - // reduce vertically + /* reduce vertically */ if (top_edge) { - // move top edge down + /* move top edge down */ top = y = y + 1; } else { - // move bottom edge up + /* move bottom edge up */ bottom = y = y - 1; } } + if (left > right || top > bottom) { - // can't continue, if the remaining rectangle is empty + /* can't continue, if the remaining rectangle is empty */ MakeEmpty(); return true; // empty remaining rect } @@ -288,10 +295,10 @@ bool StationRect::AfterRemoveTile(Station *st, TileIndex tile) bool StationRect::AfterRemoveRect(Station *st, TileIndex tile, int w, int h) { - bool empty; assert(PtInRectXY(TileX(tile), TileY(tile))); assert(PtInRectXY(TileX(tile) + w - 1, TileY(tile) + h - 1)); - empty = AfterRemoveTile(st, tile); + + bool empty = AfterRemoveTile(st, tile); if (w != 1 || h != 1) empty = empty || AfterRemoveTile(st, TILE_ADDXY(tile, w - 1, h - 1)); return empty; } |