diff options
Diffstat (limited to 'src/station_cmd.cpp')
-rw-r--r-- | src/station_cmd.cpp | 171 |
1 files changed, 17 insertions, 154 deletions
diff --git a/src/station_cmd.cpp b/src/station_cmd.cpp index 1527cfac3..7cef040c5 100644 --- a/src/station_cmd.cpp +++ b/src/station_cmd.cpp @@ -37,21 +37,6 @@ #include <memory> // for auto_ptr -typedef enum StationRectModes -{ - RECT_MODE_TEST = 0, - RECT_MODE_TRY, - RECT_MODE_FORCE -} StationRectMode; - -void StationRect_Init(Station *st); -static bool StationRect_IsEmpty(Station *st); -static bool StationRect_BeforeAddTile(Station *st, TileIndex tile, StationRectMode mode); -static bool StationRect_BeforeAddRect(Station *st, TileIndex tile, int w, int h, StationRectMode mode); -static bool StationRect_AfterRemoveTile(Station *st, TileIndex tile); -static bool StationRect_AfterRemoveRect(Station *st, TileIndex tile, int w, int h); - - /** * Called if a new block is added to the station-pool */ @@ -684,9 +669,9 @@ static void UpdateStationAcceptance(Station *st, bool show_msg) static void UpdateStationSignCoord(Station *st) { - Rect *r = &st->rect; + StationRect *r = &st->rect; - if (StationRect_IsEmpty(st)) return; // no tiles belong to this station + if (r->IsEmpty()) return; // no tiles belong to this station // clamp sign coord to be inside the station rect st->xy = TileXY(clampu(TileX(st->xy), r->left, r->right), clampu(TileY(st->xy), r->top, r->bottom)); @@ -970,7 +955,7 @@ int32 CmdBuildRailroadStation(TileIndex tile_org, uint32 flags, uint32 p1, uint3 } //XXX can't we pack this in the "else" part of the if above? - if (!StationRect_BeforeAddRect(st, tile_org, w_org, h_org, RECT_MODE_TEST)) return CMD_ERROR; + if (!st->rect.BeforeAddRect(tile_org, w_org, h_org, StationRect::ADD_TEST)) return CMD_ERROR; } else { /* allocate and initialize new station */ st = new Station(tile_org); @@ -1031,7 +1016,7 @@ int32 CmdBuildRailroadStation(TileIndex tile_org, uint32 flags, uint32 p1, uint3 st->build_date = _date; - StationRect_BeforeAddRect(st, tile_org, w_org, h_org, RECT_MODE_TRY); + st->rect.BeforeAddRect(tile_org, w_org, h_org, StationRect::ADD_TRY); tile_delta = (axis == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1)); track = AxisToTrack(axis); @@ -1155,7 +1140,7 @@ int32 CmdRemoveFromRailroadStation(TileIndex tile, uint32 flags, uint32 p1, uint uint specindex = GetCustomStationSpecIndex(tile); Track track = GetRailStationTrack(tile); DoClearSquare(tile); - StationRect_AfterRemoveTile(st, tile); + st->rect.AfterRemoveTile(st, tile); SetSignalsOnBothDir(tile, track); YapfNotifyTrackLayoutChange(tile, track); @@ -1272,7 +1257,7 @@ static int32 RemoveRailroadStation(Station *st, TileIndex tile, uint32 flags) } while (--h); if (flags & DC_EXEC) { - StationRect_AfterRemoveRect(st, st->train_tile, st->trainst_w, st->trainst_h); + st->rect.AfterRemoveRect(st, st->train_tile, st->trainst_w, st->trainst_h); st->train_tile = 0; st->trainst_w = st->trainst_h = 0; @@ -1405,7 +1390,7 @@ int32 CmdBuildRoadStop(TileIndex tile, uint32 flags, uint32 p1, uint32 p2) return_cmd_error(STR_3009_TOO_CLOSE_TO_ANOTHER_STATION); } - if (!StationRect_BeforeAddTile(st, tile, RECT_MODE_TEST)) return CMD_ERROR; + if (!st->rect.BeforeAddTile(tile, StationRect::ADD_TEST)) return CMD_ERROR; FindRoadStopSpot(type, st, &currstop, &prev); } else { @@ -1443,7 +1428,7 @@ int32 CmdBuildRoadStop(TileIndex tile, uint32 flags, uint32 p1, uint32 p2) st->build_date = _date; - StationRect_BeforeAddTile(st, tile, RECT_MODE_TRY); + st->rect.BeforeAddTile(tile, StationRect::ADD_TRY); MakeRoadStop(tile, st->owner, st->index, type ? RS_TRUCK : RS_BUS, (DiagDirection)p1); @@ -1494,7 +1479,7 @@ static int32 RemoveRoadStop(Station *st, uint32 flags, TileIndex tile) DeleteRoadStop(cur_stop); DoClearSquare(tile); - StationRect_AfterRemoveTile(st, tile); + st->rect.AfterRemoveTile(st, tile); UpdateStationVirtCoordDirty(st); DeleteStationIfEmpty(st); @@ -1665,7 +1650,7 @@ int32 CmdBuildAirport(TileIndex tile, uint32 flags, uint32 p1, uint32 p2) if (st->owner != OWNER_NONE && st->owner != _current_player) return_cmd_error(STR_3009_TOO_CLOSE_TO_ANOTHER_STATION); - if (!StationRect_BeforeAddRect(st, tile, w, h, RECT_MODE_TEST)) return CMD_ERROR; + if (!st->rect.BeforeAddRect(tile, w, h, StationRect::ADD_TEST)) return CMD_ERROR; if (st->airport_tile != 0) return_cmd_error(STR_300D_TOO_CLOSE_TO_ANOTHER_AIRPORT); @@ -1705,7 +1690,7 @@ int32 CmdBuildAirport(TileIndex tile, uint32 flags, uint32 p1, uint32 p2) st->build_date = _date; - StationRect_BeforeAddRect(st, tile, w, h, RECT_MODE_TRY); + st->rect.BeforeAddRect(tile, w, h, StationRect::ADD_TRY); /* if airport was demolished while planes were en-route to it, the * positions can no longer be the same (v->u.air.pos), since different @@ -1771,7 +1756,7 @@ static int32 RemoveAirport(Station *st, uint32 flags) ); } - StationRect_AfterRemoveRect(st, tile, w, h); + st->rect.AfterRemoveRect(st, tile, w, h); st->airport_tile = 0; st->facilities &= ~FACIL_AIRPORT; @@ -1951,7 +1936,7 @@ int32 CmdBuildDock(TileIndex tile, uint32 flags, uint32 p1, uint32 p2) if (st->owner != OWNER_NONE && st->owner != _current_player) return_cmd_error(STR_3009_TOO_CLOSE_TO_ANOTHER_STATION); - if (!StationRect_BeforeAddRect(st, tile, _dock_w_chk[direction], _dock_h_chk[direction], RECT_MODE_TEST)) return CMD_ERROR; + if (!st->rect.BeforeAddRect(tile, _dock_w_chk[direction], _dock_h_chk[direction], StationRect::ADD_TEST)) return CMD_ERROR; if (st->dock_tile != 0) return_cmd_error(STR_304C_TOO_CLOSE_TO_ANOTHER_DOCK); } else { @@ -1981,7 +1966,7 @@ int32 CmdBuildDock(TileIndex tile, uint32 flags, uint32 p1, uint32 p2) st->build_date = _date; - StationRect_BeforeAddRect(st, tile, _dock_w_chk[direction], _dock_h_chk[direction], RECT_MODE_TRY); + st->rect.BeforeAddRect(tile, _dock_w_chk[direction], _dock_h_chk[direction], StationRect::ADD_TRY); MakeDock(tile, st->owner, st->index, direction); @@ -2012,8 +1997,8 @@ static int32 RemoveDock(Station *st, uint32 flags) DoClearSquare(tile1); MakeWater(tile2); - StationRect_AfterRemoveTile(st, tile1); - StationRect_AfterRemoveTile(st, tile2); + st->rect.AfterRemoveTile(st, tile1); + st->rect.AfterRemoveTile(st, tile2); MarkTileDirtyByTile(tile2); @@ -2868,7 +2853,7 @@ void AfterLoadStations(void) for (tile = 0; tile < MapSize(); tile++) { if (GetTileType(tile) != MP_STATION) continue; st = GetStationByTile(tile); - StationRect_BeforeAddTile(st, tile, RECT_MODE_FORCE); + st->rect.BeforeAddTile(tile, StationRect::ADD_FORCE); } } @@ -3098,125 +3083,3 @@ extern const ChunkHandler _station_chunk_handlers[] = { }; -static inline bool PtInRectXY(Rect *r, int x, int y) -{ - return (r->left <= x && x <= r->right && r->top <= y && y <= r->bottom); -} - -void StationRect_Init(Station *st) -{ - Rect *r = &st->rect; - r->left = r->top = r->right = r->bottom = 0; -} - -static bool StationRect_IsEmpty(Station *st) -{ - return (st->rect.left == 0 || st->rect.left > st->rect.right || st->rect.top > st->rect.bottom); -} - -static bool StationRect_BeforeAddTile(Station *st, TileIndex tile, StationRectMode mode) -{ - Rect *r = &st->rect; - int x = TileX(tile); - int y = TileY(tile); - if (StationRect_IsEmpty(st)) { - // we are adding the first station tile - r->left = r->right = x; - r->top = r->bottom = y; - } else if (!PtInRectXY(r, x, y)) { - // current rect is not empty and new point is outside this rect - // make new spread-out rectangle - Rect new_rect = {min(x, r->left), min(y, r->top), max(x, r->right), max(y, r->bottom)}; - // 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 != RECT_MODE_FORCE && (w > _patches.station_spread || h > _patches.station_spread)) { - assert(mode != RECT_MODE_TRY); - _error_message = STR_306C_STATION_TOO_SPREAD_OUT; - return false; - } - // spread-out ok, return true - if (mode != RECT_MODE_TEST) { - // we should update the station rect - *r = new_rect; - } - } else { - ; // new point is inside the rect, we don't need to do anything - } - return true; -} - -static bool StationRect_BeforeAddRect(Station *st, TileIndex tile, int w, int h, StationRectMode mode) -{ - return StationRect_BeforeAddTile(st, tile, mode) && StationRect_BeforeAddTile(st, TILE_ADDXY(tile, w - 1, h - 1), mode); -} - -static inline bool ScanRectForStationTiles(StationID st_id, int left, int top, int right, int bottom) -{ - TileIndex top_left = TileXY(left, top); - int width = right - left + 1; - int height = bottom - top + 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; -} - -static bool StationRect_AfterRemoveTile(Station *st, TileIndex tile) -{ - Rect *r = &st->rect; - 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 - for (;;) { - // check if removed tile is on rect edge - bool left_edge = (x == r->left); - bool right_edge = (x == r->right); - bool top_edge = (y == r->top); - bool bottom_edge = (y == r->bottom); - // can we reduce the rect in either direction? - reduce_x = ((left_edge || right_edge) && !ScanRectForStationTiles(st->index, x, r->top, x, r->bottom)); - reduce_y = ((top_edge || bottom_edge) && !ScanRectForStationTiles(st->index, r->left, y, r->right, y)); - if (!(reduce_x || reduce_y)) break; // nothing to do (can't reduce) - if (reduce_x) { - // reduce horizontally - if (left_edge) { - // move left edge right - r->left = x = x + 1; - } else { - // move right edge left - r->right = x = x - 1; - } - } - if (reduce_y) { - // reduce vertically - if (top_edge) { - // move top edge down - r->top = y = y + 1; - } else { - // move bottom edge up - r->bottom = y = y - 1; - } - } - if (r->left > r->right || r->top > r->bottom) { - // can't continue, if the remaining rectangle is empty - StationRect_Init(st); - return true; // empty remaining rect - } - } - return false; // non-empty remaining rect -} - -static bool StationRect_AfterRemoveRect(Station *st, TileIndex tile, int w, int h) -{ - bool empty; - assert(PtInRectXY(&st->rect, TileX(tile), TileY(tile))); - assert(PtInRectXY(&st->rect, TileX(tile) + w - 1, TileY(tile) + h - 1)); - empty = StationRect_AfterRemoveTile(st, tile); - if (w != 1 || h != 1) empty = empty || StationRect_AfterRemoveTile(st, TILE_ADDXY(tile, w - 1, h - 1)); - return empty; -} |