/* static */ int32 ScriptRoad::GetNeighbourRoadCount(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
if (!IsRoadTypeAvailable(GetCurrentRoadType())) return false;
::RoadTypes rts = ::RoadTypeToRoadTypes((::RoadType)GetCurrentRoadType());
int32 neighbour = 0;
if (TileX(tile) > 0 && NeighbourHasReachableRoad(rts, tile, DIAGDIR_NE)) neighbour++;
if (NeighbourHasReachableRoad(rts, tile, DIAGDIR_SE)) neighbour++;
if (NeighbourHasReachableRoad(rts, tile, DIAGDIR_SW)) neighbour++;
if (TileY(tile) > 0 && NeighbourHasReachableRoad(rts, tile, DIAGDIR_NW)) neighbour++;
return neighbour;
}
/* static */ bool ScriptRoad::_BuildRoadStationInternal(TileIndex tile, TileIndex front, RoadVehicleType road_veh_type, bool drive_through, StationID station_id)
{
EnforcePrecondition(false, ScriptObject::GetCompany() != OWNER_DEITY);
EnforcePrecondition(false, tile != front);
EnforcePrecondition(false, ::IsValidTile(tile));
EnforcePrecondition(false, ::IsValidTile(front));
EnforcePrecondition(false, ::TileX(tile) == ::TileX(front) || ::TileY(tile) == ::TileY(front));
EnforcePrecondition(false, station_id == ScriptStation::STATION_NEW || station_id == ScriptStation::STATION_JOIN_ADJACENT || ScriptStation::IsValidStation(station_id));
EnforcePrecondition(false, road_veh_type == ROADVEHTYPE_BUS || road_veh_type == ROADVEHTYPE_TRUCK);
EnforcePrecondition(false, IsRoadTypeAvailable(GetCurrentRoadType()));
uint entrance_dir;
if (drive_through) {
entrance_dir = ::TileY(tile) != ::TileY(front);
} else {
entrance_dir = (::TileX(tile) == ::TileX(front)) ? (::TileY(tile) < ::TileY(front) ? 1 : 3) : (::TileX(tile) < ::TileX(front) ? 2 : 0);
}
uint p2 = station_id == ScriptStation::STATION_JOIN_ADJACENT ? 0 : 32;
p2 |= drive_through ? 2 : 0;
p2 |= road_veh_type == ROADVEHTYPE_TRUCK ? 1 : 0;
p2 |= ::RoadTypeToRoadTypes(ScriptObject::GetRoadType()) << 2;
p2 |= entrance_dir << 6;
p2 |= (ScriptStation::IsValidStation(station_id) ? station_id : INVALID_STATION) << 16;
return ScriptObject::DoCommand(tile, 1 | 1 << 8, p2, CMD_BUILD_ROAD_STOP);
}
/* static */ bool ScriptRoad::IsRoadDepotTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsTileType(tile, MP_ROAD) && ::GetRoadTileType(tile) == ROAD_TILE_DEPOT &&
(::RoadTypeToRoadTypes((::RoadType)GetCurrentRoadType()) & ::GetRoadTypes(tile)) != 0;
}
/* static */ bool AIRoad::RemoveRoadFull(TileIndex start, TileIndex end)
{
EnforcePrecondition(false, ::IsValidTile(start));
EnforcePrecondition(false, ::IsValidTile(end));
EnforcePrecondition(false, ::TileX(start) == ::TileX(end) || ::TileY(start) == ::TileY(end));
EnforcePrecondition(false, IsRoadTypeAvailable(GetCurrentRoadType()));
return AIObject::DoCommand(start, end, (::TileY(start) != ::TileY(end) ? 4 : 0) | (start < end ? 2 : 1) | (AIObject::GetRoadType() << 3), CMD_REMOVE_LONG_ROAD);
}
/* static */ bool ScriptRoad::RemoveRoad(TileIndex start, TileIndex end)
{
EnforcePrecondition(false, ScriptObject::GetCompany() != OWNER_DEITY);
EnforcePrecondition(false, ::IsValidTile(start));
EnforcePrecondition(false, ::IsValidTile(end));
EnforcePrecondition(false, ::TileX(start) == ::TileX(end) || ::TileY(start) == ::TileY(end));
EnforcePrecondition(false, IsRoadTypeAvailable(GetCurrentRoadType()));
return ScriptObject::DoCommand(start, end, (::TileY(start) != ::TileY(end) ? 4 : 0) | (start < end ? 1 : 2) | (ScriptObject::GetRoadType() << 3), CMD_REMOVE_LONG_ROAD);
}
/* static */ bool ScriptRoad::_BuildRoadInternal(TileIndex start, TileIndex end, bool one_way, bool full)
{
EnforcePrecondition(false, start != end);
EnforcePrecondition(false, ::IsValidTile(start));
EnforcePrecondition(false, ::IsValidTile(end));
EnforcePrecondition(false, ::TileX(start) == ::TileX(end) || ::TileY(start) == ::TileY(end));
EnforcePrecondition(false, !one_way || ScriptObject::GetRoadType() == ::ROADTYPE_ROAD);
EnforcePrecondition(false, IsRoadTypeAvailable(GetCurrentRoadType()));
return ScriptObject::DoCommand(start, end, (::TileY(start) != ::TileY(end) ? 4 : 0) | (((start < end) == !full) ? 1 : 2) | (ScriptObject::GetRoadType() << 3) | ((one_way ? 1 : 0) << 5) | 1 << 6, CMD_BUILD_LONG_ROAD);
}
/* static */ bool AIRoad::BuildRoadDepot(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, IsRoadTypeAvailable(GetCurrentRoadType()));
uint entrance_dir = (::TileX(tile) == ::TileX(front)) ? (::TileY(tile) < ::TileY(front) ? 1 : 3) : (::TileX(tile) < ::TileX(front) ? 2 : 0);
return AIObject::DoCommand(tile, entrance_dir | (AIObject::GetRoadType() << 2), 0, CMD_BUILD_ROAD_DEPOT);
}
/* static */ bool ScriptRoad::AreRoadTilesConnected(TileIndex t1, TileIndex t2)
{
if (!::IsValidTile(t1)) return false;
if (!::IsValidTile(t2)) return false;
if (!IsRoadTypeAvailable(GetCurrentRoadType())) return false;
/* Tiles not neighbouring */
if ((abs((int)::TileX(t1) - (int)::TileX(t2)) + abs((int)::TileY(t1) - (int)::TileY(t2))) != 1) return false;
RoadBits r1 = ::GetAnyRoadBits(t1, ScriptObject::GetRoadType());
RoadBits r2 = ::GetAnyRoadBits(t2, ScriptObject::GetRoadType());
uint dir_1 = (::TileX(t1) == ::TileX(t2)) ? (::TileY(t1) < ::TileY(t2) ? 2 : 0) : (::TileX(t1) < ::TileX(t2) ? 1 : 3);
uint dir_2 = 2 ^ dir_1;
DisallowedRoadDirections drd2 = IsNormalRoadTile(t2) ? GetDisallowedRoadDirections(t2) : DRD_NONE;
return HasBit(r1, dir_1) && HasBit(r2, dir_2) && drd2 != DRD_BOTH && drd2 != (dir_1 > dir_2 ? DRD_SOUTHBOUND : DRD_NORTHBOUND);
}
/* static */ bool ScriptRoad::IsDriveThroughRoadStationTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsDriveThroughStopTile(tile) && (::RoadTypeToRoadTypes((::RoadType)GetCurrentRoadType()) & ::GetRoadTypes(tile)) != 0;
}