/* static */ bool ScriptRail::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, ScriptObject::GetCompany() != OWNER_DEITY);
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 == ScriptStation::STATION_NEW || station_id == ScriptStation::STATION_JOIN_ADJACENT || ScriptStation::IsValidStation(station_id));
EnforcePrecondition(false, ScriptCargo::IsValidCargo(cargo_id));
EnforcePrecondition(false, source_industry == ScriptIndustryType::INDUSTRYTYPE_UNKNOWN || source_industry == ScriptIndustryType::INDUSTRYTYPE_TOWN || ScriptIndustryType::IsValidIndustryType(source_industry));
EnforcePrecondition(false, goal_industry == ScriptIndustryType::INDUSTRYTYPE_UNKNOWN || goal_industry == ScriptIndustryType::INDUSTRYTYPE_TOWN || ScriptIndustryType::IsValidIndustryType(goal_industry));
uint32 p1 = GetCurrentRailType() | (platform_length << 16) | (num_platforms << 8);
if (direction == RAILTRACK_NW_SE) p1 |= 1 << 4;
if (station_id != ScriptStation::STATION_JOIN_ADJACENT) p1 |= (1 << 24);
const GRFFile *file;
uint16 res = GetAiPurchaseCallbackResult(GSF_STATIONS, 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 = (ScriptStation::IsValidStation(station_id) ? station_id : INVALID_STATION) << 16;
if (res != CALLBACK_FAILED) {
int index = 0;
const StationSpec *spec = StationClass::GetByGrf(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->cls_id | index << 8;
}
}
return ScriptObject::DoCommand(tile, p1, p2, CMD_BUILD_RAIL_STATION);
}
/* static */ bool AIRail::ConvertRailType(TileIndex start_tile, TileIndex end_tile, AIRail::RailType convert_to)
{
EnforcePrecondition(false, ::IsValidTile(start_tile));
EnforcePrecondition(false, ::IsValidTile(end_tile));
EnforcePrecondition(false, IsRailTypeAvailable(convert_to));
return AIObject::DoCommand(start_tile, end_tile, convert_to, CMD_CONVERT_RAIL);
}
/* static */ bool ScriptRail::ConvertRailType(TileIndex start_tile, TileIndex end_tile, ScriptRail::RailType convert_to)
{
EnforcePrecondition(false, ScriptObject::GetCompany() != OWNER_DEITY);
EnforcePrecondition(false, ::IsValidTile(start_tile));
EnforcePrecondition(false, ::IsValidTile(end_tile));
EnforcePrecondition(false, IsRailTypeAvailable(convert_to));
return ScriptObject::DoCommand(start_tile, end_tile, convert_to, CMD_CONVERT_RAIL);
}
/* static */ bool AIRail::BuildRailWaypoint(TileIndex tile)
{
EnforcePrecondition(false, ::IsValidTile(tile));
EnforcePrecondition(false, IsRailTile(tile));
EnforcePrecondition(false, GetRailTracks(tile) == RAILTRACK_NE_SW || GetRailTracks(tile) == RAILTRACK_NW_SE);
EnforcePrecondition(false, IsRailTypeAvailable(GetCurrentRailType()));
return AIObject::DoCommand(tile, GetCurrentRailType() | (GetRailTracks(tile) == RAILTRACK_NE_SW ? AXIS_X : AXIS_Y) << 4 | 1 << 8 | 1 << 16, STAT_CLASS_WAYP | INVALID_STATION << 16, CMD_BUILD_RAIL_WAYPOINT);
}
/* static */ char *AIRail::GetName(RailType rail_type)
{
if (!IsRailTypeAvailable(rail_type)) return NULL;
static const int len = 64;
char *railtype_name = MallocT<char>(len);
::GetString(railtype_name, GetRailTypeInfo((::RailType)rail_type)->strings.menu_text, &railtype_name[len - 1]);
return railtype_name;
}
/* static */ bool AIRail::BuildRailTrack(TileIndex tile, RailTrack rail_track)
{
EnforcePrecondition(false, ::IsValidTile(tile));
EnforcePrecondition(false, rail_track != 0);
EnforcePrecondition(false, (rail_track & ~::TRACK_BIT_ALL) == 0);
EnforcePrecondition(false, KillFirstBit((uint)rail_track) == 0);
EnforcePrecondition(false, IsRailTypeAvailable(GetCurrentRailType()));
return AIObject::DoCommand(tile, tile, GetCurrentRailType() | (FindFirstTrack((::TrackBits)rail_track) << 4), CMD_BUILD_RAILROAD_TRACK);
}
/* static */ bool AIRail::BuildRailDepot(TileIndex tile, TileIndex front)
{
EnforcePrecondition(false, tile != front);
EnforcePrecondition(false, ::IsValidTile(tile));
EnforcePrecondition(false, ::IsValidTile(front));
EnforcePrecondition(false, ::TileX(tile) == ::TileX(front) || ::TileY(tile) == ::TileY(front));
EnforcePrecondition(false, IsRailTypeAvailable(GetCurrentRailType()));
uint entrance_dir = (::TileX(tile) == ::TileX(front)) ? (::TileY(tile) < ::TileY(front) ? 1 : 3) : (::TileX(tile) < ::TileX(front) ? 2 : 0);
return AIObject::DoCommand(tile, AIObject::GetRailType(), entrance_dir, CMD_BUILD_TRAIN_DEPOT);
}
/* static */ bool AIRail::BuildRailStation(TileIndex tile, RailTrack direction, uint num_platforms, uint platform_length, StationID station_id)
{
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);
return AIObject::DoCommand(tile, p1, (AIStation::IsValidStation(station_id) ? station_id : INVALID_STATION) << 16, CMD_BUILD_RAIL_STATION);
}
/* static */ bool AIRail::RemoveRail(TileIndex from, TileIndex tile, TileIndex to)
{
EnforcePrecondition(false, ::IsValidTile(from));
EnforcePrecondition(false, ::IsValidTile(tile));
EnforcePrecondition(false, ::IsValidTile(to));
EnforcePrecondition(false, ::DistanceManhattan(from, tile) == 1);
EnforcePrecondition(false, ::DistanceManhattan(tile, to) >= 1);
int diag_offset = abs(abs((int)::TileX(to) - (int)::TileX(tile)) - abs((int)::TileY(to) - (int)::TileY(tile)));
EnforcePrecondition(false, diag_offset <= 1 ||
(::TileX(from) == ::TileX(tile) && ::TileX(tile) == ::TileX(to)) ||
(::TileY(from) == ::TileY(tile) && ::TileY(tile) == ::TileY(to)));
if (!IsRailTypeAvailable(GetCurrentRailType())) SetCurrentRailType(GetRailType(tile));
uint32 p2 = SimulateDrag(from, tile, &to);
return AIObject::DoCommand(tile, to, p2, CMD_REMOVE_RAILROAD_TRACK);
}
/* static */ bool ScriptRail::BuildRail(TileIndex from, TileIndex tile, TileIndex to)
{
EnforcePrecondition(false, ScriptObject::GetCompany() != OWNER_DEITY);
EnforcePrecondition(false, ::IsValidTile(from));
EnforcePrecondition(false, ::IsValidTile(tile));
EnforcePrecondition(false, ::IsValidTile(to));
EnforcePrecondition(false, ::DistanceManhattan(from, tile) == 1);
EnforcePrecondition(false, ::DistanceManhattan(tile, to) >= 1);
EnforcePrecondition(false, IsRailTypeAvailable(GetCurrentRailType()));
int diag_offset = abs(abs((int)::TileX(to) - (int)::TileX(tile)) - abs((int)::TileY(to) - (int)::TileY(tile)));
EnforcePrecondition(false, diag_offset <= 1 ||
(::TileX(from) == ::TileX(tile) && ::TileX(tile) == ::TileX(to)) ||
(::TileY(from) == ::TileY(tile) && ::TileY(tile) == ::TileY(to)));
uint32 p2 = SimulateDrag(from, tile, &to) | 1 << 8;
return ScriptObject::DoCommand(tile, to, p2, CMD_BUILD_RAILROAD_TRACK);
}
/* static */ void ScriptRail::SetCurrentRailType(RailType rail_type)
{
if (!IsRailTypeAvailable(rail_type)) return;
ScriptObject::SetRailType((::RailType)rail_type);
}
/* static */ char *ScriptRail::GetName(RailType rail_type)
{
if (!IsRailTypeAvailable(rail_type)) return NULL;
return GetString(GetRailTypeInfo((::RailType)rail_type)->strings.menu_text);
}