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(svn r16972) -Fix [FS#3058] (r16942): mixup of variables caused, in some cases, rail stations to have incorrect width/height.

This commit is contained in:
rubidium 2009-07-28 13:35:50 +00:00
parent 4ef012abfa
commit 39ac44ad49
1 changed files with 16 additions and 18 deletions
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34
src/station_cmd.cpp
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@ -717,25 +717,25 @@ CommandCost CheckFlatLandBelow(TileIndex tile, uint w, uint h, DoCommandFlag fla
/**
* Check whether we can expand the rail part of the given station.
* @param st the station to expand
* @param cur_ta the current (and if all is fine new) tile area of the rail part of the station
* @param new_ta the current (and if all is fine new) tile area of the rail part of the station
* @param axis the axis of the newly build rail
* @return true if we are allowed to extend
*/
static bool CanExpandRailStation(const Station *st, TileArea &cur_ta, Axis axis)
static bool CanExpandRailStation(const Station *st, TileArea &new_ta, Axis axis)
{
TileArea new_ta = cur_ta;
TileArea cur_ta = st->train_station;
if (_settings_game.station.nonuniform_stations) {
/* determine new size of train station region.. */
int x = min(TileX(st->train_station.tile), TileX(cur_ta.tile));
int y = min(TileY(st->train_station.tile), TileY(cur_ta.tile));
new_ta.w = max(TileX(st->train_station.tile) + new_ta.w, TileX(cur_ta.tile) + cur_ta.w) - x;
new_ta.h = max(TileY(st->train_station.tile) + new_ta.h, TileY(cur_ta.tile) + cur_ta.h) - y;
int x = min(TileX(cur_ta.tile), TileX(new_ta.tile));
int y = min(TileY(cur_ta.tile), TileY(new_ta.tile));
new_ta.w = max(TileX(cur_ta.tile) + cur_ta.w, TileX(new_ta.tile) + new_ta.w) - x;
new_ta.h = max(TileY(cur_ta.tile) + cur_ta.h, TileY(new_ta.tile) + new_ta.h) - y;
new_ta.tile = TileXY(x, y);
} else {
/* do not allow modifying non-uniform stations,
* the uniform-stations code wouldn't handle it well */
TILE_LOOP(t, st->train_station.w, st->train_station.h, st->train_station.tile) {
TILE_LOOP(t, cur_ta.w, cur_ta.h, cur_ta.tile) {
if (!st->TileBelongsToRailStation(t)) { // there may be adjoined station
_error_message = STR_NONUNIFORM_STATIONS_DISALLOWED;
return false;
@ -743,25 +743,25 @@ static bool CanExpandRailStation(const Station *st, TileArea &cur_ta, Axis axis)
}
/* check so the orientation is the same */
if (GetRailStationAxis(st->train_station.tile) != axis) {
if (GetRailStationAxis(cur_ta.tile) != axis) {
_error_message = STR_NONUNIFORM_STATIONS_DISALLOWED;
return false;
}
/* check if the new station adjoins the old station in either direction */
if (new_ta.w == cur_ta.w && st->train_station.tile == cur_ta.tile + TileDiffXY(0, cur_ta.h)) {
if (cur_ta.w == new_ta.w && cur_ta.tile == new_ta.tile + TileDiffXY(0, new_ta.h)) {
/* above */
new_ta.h += cur_ta.h;
} else if (new_ta.w == cur_ta.w && st->train_station.tile == cur_ta.tile - TileDiffXY(0, new_ta.h)) {
} else if (cur_ta.w == new_ta.w && cur_ta.tile == new_ta.tile - TileDiffXY(0, cur_ta.h)) {
/* below */
new_ta.tile -= TileDiffXY(0, new_ta.h);
new_ta.h += cur_ta.h;
} else if (new_ta.h == cur_ta.h && st->train_station.tile == cur_ta.tile + TileDiffXY(cur_ta.w, 0)) {
new_ta.tile = cur_ta.tile;
new_ta.h += new_ta.h;
} else if (cur_ta.h == new_ta.h && cur_ta.tile == new_ta.tile + TileDiffXY(new_ta.w, 0)) {
/* to the left */
new_ta.w += cur_ta.w;
} else if (new_ta.h == cur_ta.h && st->train_station.tile == cur_ta.tile - TileDiffXY(new_ta.w, 0)) {
} else if (cur_ta.h == new_ta.h && cur_ta.tile == new_ta.tile - TileDiffXY(cur_ta.w, 0)) {
/* to the right */
new_ta.tile -= TileDiffXY(new_ta.w, 0);
new_ta.tile = cur_ta.tile;
new_ta.w += cur_ta.w;
} else {
_error_message = STR_NONUNIFORM_STATIONS_DISALLOWED;
@ -774,8 +774,6 @@ static bool CanExpandRailStation(const Station *st, TileArea &cur_ta, Axis axis)
return false;
}
/* Update the current values with the new. */
cur_ta = new_ta;
return true;
}