/* static */ bool AIRail::BuildNewGRFRailStation(TileIndex tile, RailTrack direction, uint num_platforms, uint platform_length, StationID station_id, CargoID cargo_id, IndustryType source_industry, IndustryType goal_industry, int distance, bool source_station)
{
EnforcePrecondition(false, ::IsValidTile(tile));
EnforcePrecondition(false, direction == RAILTRACK_NW_SE || direction == RAILTRACK_NE_SW);
EnforcePrecondition(false, num_platforms > 0 && num_platforms <= 0xFF);
EnforcePrecondition(false, platform_length > 0 && platform_length <= 0xFF);
EnforcePrecondition(false, IsRailTypeAvailable(GetCurrentRailType()));
EnforcePrecondition(false, station_id == AIStation::STATION_NEW || station_id == AIStation::STATION_JOIN_ADJACENT || AIStation::IsValidStation(station_id));
uint32 p1 = GetCurrentRailType() | (platform_length << 16) | (num_platforms << 8);
if (direction == RAILTRACK_NW_SE) p1 |= 1 << 4;
if (station_id != AIStation::STATION_JOIN_ADJACENT) p1 |= (1 << 24);
const GRFFile *file;
uint16 res = GetAiPurchaseCallbackResult(GSF_STATION, cargo_id, 0, source_industry, goal_industry, min(255, distance / 2), AICE_STATION_GET_STATION_ID, source_station ? 0 : 1, min(15, num_platforms) << 4 | min(15, platform_length), &file);
uint32 p2 = (AIStation::IsValidStation(station_id) ? station_id : INVALID_STATION) << 16;
if (res != CALLBACK_FAILED) {
int index = 0;
const StationSpec *spec = GetCustomStationSpecByGrf(file->grfid, res, &index);
if (spec == NULL) {
DEBUG(grf, 1, "%s returned an invalid station ID for 'AI construction/purchase selection (18)' callback", file->filename);
} else {
p2 |= spec->sclass | index << 8;
}
}
return AIObject::DoCommand(tile, p1, p2, CMD_BUILD_RAIL_STATION);
}
void AfterLoadStations()
{
/* Update the speclists of all stations to point to the currently loaded custom stations. */
BaseStation *st;
FOR_ALL_BASE_STATIONS(st) {
for (uint i = 0; i < st->num_specs; i++) {
if (st->speclist[i].grfid == 0) continue;
st->speclist[i].spec = GetCustomStationSpecByGrf(st->speclist[i].grfid, st->speclist[i].localidx, NULL);
}
if (Station::IsExpected(st)) {
Station *sta = Station::From(st);
for (const RoadStop *rs = sta->bus_stops; rs != NULL; rs = rs->next) sta->bus_station.Add(rs->xy);
for (const RoadStop *rs = sta->truck_stops; rs != NULL; rs = rs->next) sta->truck_station.Add(rs->xy);
}
StationUpdateAnimTriggers(st);
}
}
