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Location: cpp/openttd-patchpack/source/src/script/api/script_rail.cpp - annotation
r26497:5a0a2e4c3e8b
22.0 KiB
text/x-c
Cleanup: Remove svn-style `$Id$` comments. (#10122)
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r23607:36c15679007d r18500:14a481bc4437 r18500:14a481bc4437 r18500:14a481bc4437 r18500:14a481bc4437 r18501:8e3d905ea4bc r18500:14a481bc4437 r18501:8e3d905ea4bc r18500:14a481bc4437 r18500:14a481bc4437 r18500:14a481bc4437 r18561:e19e8462f369 r18561:e19e8462f369 r18561:e19e8462f369 r18561:e19e8462f369 r18561:e19e8462f369 r18561:e19e8462f369 r18561:e19e8462f369 | /*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file script_rail.cpp Implementation of ScriptRail. */
#include "../../stdafx.h"
#include "script_rail.hpp"
#include "script_map.hpp"
#include "script_station.hpp"
#include "script_industrytype.hpp"
#include "script_cargo.hpp"
#include "../../debug.h"
#include "../../station_base.h"
#include "../../newgrf_generic.h"
#include "../../newgrf_station.h"
#include "../../strings_func.h"
#include "../../rail_cmd.h"
#include "../../station_cmd.h"
#include "../../waypoint_cmd.h"
#include "../../safeguards.h"
/* static */ char *ScriptRail::GetName(RailType rail_type)
{
if (!IsRailTypeAvailable(rail_type)) return nullptr;
return GetString(GetRailTypeInfo((::RailType)rail_type)->strings.menu_text);
}
/* static */ bool ScriptRail::IsRailTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return (::IsTileType(tile, MP_RAILWAY) && !::IsRailDepot(tile)) ||
(::HasStationTileRail(tile) && !::IsStationTileBlocked(tile)) || ::IsLevelCrossingTile(tile);
}
/* static */ bool ScriptRail::IsLevelCrossingTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsLevelCrossingTile(tile);
}
/* static */ bool ScriptRail::IsRailDepotTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsRailDepotTile(tile);
}
/* static */ bool ScriptRail::IsRailStationTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsRailStationTile(tile);
}
/* static */ bool ScriptRail::IsRailWaypointTile(TileIndex tile)
{
if (!::IsValidTile(tile)) return false;
return ::IsRailWaypointTile(tile);
}
/* static */ bool ScriptRail::IsRailTypeAvailable(RailType rail_type)
{
if ((::RailType)rail_type >= RAILTYPE_END) return false;
return ScriptObject::GetCompany() == OWNER_DEITY || ::HasRailtypeAvail(ScriptObject::GetCompany(), (::RailType)rail_type);
}
/* static */ ScriptRail::RailType ScriptRail::GetCurrentRailType()
{
return (RailType)ScriptObject::GetRailType();
}
/* static */ void ScriptRail::SetCurrentRailType(RailType rail_type)
{
if (!IsRailTypeAvailable(rail_type)) return;
ScriptObject::SetRailType((::RailType)rail_type);
}
/* static */ bool ScriptRail::TrainCanRunOnRail(ScriptRail::RailType engine_rail_type, ScriptRail::RailType track_rail_type)
{
if (!ScriptRail::IsRailTypeAvailable(engine_rail_type)) return false;
if (!ScriptRail::IsRailTypeAvailable(track_rail_type)) return false;
return ::IsCompatibleRail((::RailType)engine_rail_type, (::RailType)track_rail_type);
}
/* static */ bool ScriptRail::TrainHasPowerOnRail(ScriptRail::RailType engine_rail_type, ScriptRail::RailType track_rail_type)
{\
if (!ScriptRail::IsRailTypeAvailable(engine_rail_type)) return false;
if (!ScriptRail::IsRailTypeAvailable(track_rail_type)) return false;
return ::HasPowerOnRail((::RailType)engine_rail_type, (::RailType)track_rail_type);
}
/* static */ ScriptRail::RailType ScriptRail::GetRailType(TileIndex tile)
{
if (!ScriptTile::HasTransportType(tile, ScriptTile::TRANSPORT_RAIL)) return RAILTYPE_INVALID;
return (RailType)::GetRailType(tile);
}
/* 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::Command<CMD_CONVERT_RAIL>::Do(start_tile, end_tile, (::RailType)convert_to, false);
}
/* static */ TileIndex ScriptRail::GetRailDepotFrontTile(TileIndex depot)
{
if (!IsRailDepotTile(depot)) return INVALID_TILE;
return depot + ::TileOffsByDiagDir(::GetRailDepotDirection(depot));
}
/* static */ ScriptRail::RailTrack ScriptRail::GetRailStationDirection(TileIndex tile)
{
if (!IsRailStationTile(tile)) return RAILTRACK_INVALID;
return (RailTrack)::GetRailStationTrackBits(tile);
}
/* static */ bool ScriptRail::BuildRailDepot(TileIndex tile, TileIndex front)
{
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, IsRailTypeAvailable(GetCurrentRailType()));
DiagDirection entrance_dir = (::TileX(tile) == ::TileX(front)) ? (::TileY(tile) < ::TileY(front) ? DIAGDIR_SE : DIAGDIR_NW) : (::TileX(tile) < ::TileX(front) ? DIAGDIR_SW : DIAGDIR_NE);
return ScriptObject::Command<CMD_BUILD_TRAIN_DEPOT>::Do(tile, (::RailType)ScriptObject::GetRailType(), entrance_dir);
}
/* static */ bool ScriptRail::BuildRailStation(TileIndex tile, RailTrack direction, uint num_platforms, uint platform_length, StationID station_id)
{
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));
bool adjacent = station_id != ScriptStation::STATION_JOIN_ADJACENT;
return ScriptObject::Command<CMD_BUILD_RAIL_STATION>::Do(tile, (::RailType)GetCurrentRailType(), direction == RAILTRACK_NW_SE ? AXIS_Y : AXIS_X, num_platforms, platform_length, STAT_CLASS_DFLT, 0, ScriptStation::IsValidStation(station_id) ? station_id : INVALID_STATION, adjacent);
}
/* 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));
const GRFFile *file;
uint16 res = GetAiPurchaseCallbackResult(
GSF_STATIONS,
cargo_id,
0,
source_industry,
goal_industry,
std::min(255, distance / 2),
AICE_STATION_GET_STATION_ID,
source_station ? 0 : 1,
std::min(15u, num_platforms) << 4 | std::min(15u, platform_length),
&file
);
Axis axis = direction == RAILTRACK_NW_SE ? AXIS_Y : AXIS_X;
bool adjacent = station_id != ScriptStation::STATION_JOIN_ADJACENT;
StationID to_join = ScriptStation::IsValidStation(station_id) ? station_id : INVALID_STATION;
if (res != CALLBACK_FAILED) {
int index = 0;
const StationSpec *spec = StationClass::GetByGrf(file->grfid, res, &index);
if (spec == nullptr) {
Debug(grf, 1, "{} returned an invalid station ID for 'AI construction/purchase selection (18)' callback", file->filename);
} else {
/* We might have gotten an usable station spec. Try to build it, but if it fails we'll fall back to the original station. */
if (ScriptObject::Command<CMD_BUILD_RAIL_STATION>::Do(tile, (::RailType)GetCurrentRailType(), axis, num_platforms, platform_length, spec->cls_id, index, to_join, adjacent)) return true;
}
}
return ScriptObject::Command<CMD_BUILD_RAIL_STATION>::Do(tile, (::RailType)GetCurrentRailType(), axis, num_platforms, platform_length, STAT_CLASS_DFLT, 0, to_join, adjacent);
}
/* static */ bool ScriptRail::BuildRailWaypoint(TileIndex tile)
{
EnforcePrecondition(false, ScriptObject::GetCompany() != OWNER_DEITY);
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 ScriptObject::Command<CMD_BUILD_RAIL_WAYPOINT>::Do(tile, GetRailTracks(tile) == RAILTRACK_NE_SW ? AXIS_X : AXIS_Y, 1, 1, STAT_CLASS_WAYP, 0, INVALID_STATION, false);
}
/* static */ bool ScriptRail::RemoveRailWaypointTileRectangle(TileIndex tile, TileIndex tile2, bool keep_rail)
{
EnforcePrecondition(false, ScriptObject::GetCompany() != OWNER_DEITY);
EnforcePrecondition(false, ::IsValidTile(tile));
EnforcePrecondition(false, ::IsValidTile(tile2));
return ScriptObject::Command<CMD_REMOVE_FROM_RAIL_WAYPOINT>::Do(tile, tile2, keep_rail);
}
/* static */ bool ScriptRail::RemoveRailStationTileRectangle(TileIndex tile, TileIndex tile2, bool keep_rail)
{
EnforcePrecondition(false, ScriptObject::GetCompany() != OWNER_DEITY);
EnforcePrecondition(false, ::IsValidTile(tile));
EnforcePrecondition(false, ::IsValidTile(tile2));
return ScriptObject::Command<CMD_REMOVE_FROM_RAIL_STATION>::Do(tile, tile2, keep_rail);
}
/* static */ uint ScriptRail::GetRailTracks(TileIndex tile)
{
if (!IsRailTile(tile)) return RAILTRACK_INVALID;
if (IsRailStationTile(tile) || IsRailWaypointTile(tile)) return ::TrackToTrackBits(::GetRailStationTrack(tile));
if (IsLevelCrossingTile(tile)) return ::GetCrossingRailBits(tile);
if (IsRailDepotTile(tile)) return ::TRACK_BIT_NONE;
return ::GetTrackBits(tile);
}
/* static */ bool ScriptRail::BuildRailTrack(TileIndex tile, RailTrack rail_track)
{
EnforcePrecondition(false, ScriptObject::GetCompany() != OWNER_DEITY);
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 ScriptObject::Command<CMD_BUILD_RAILROAD_TRACK>::Do(tile, tile, (::RailType)GetCurrentRailType(), FindFirstTrack((::TrackBits)rail_track), false, false);
}
/* static */ bool ScriptRail::RemoveRailTrack(TileIndex tile, RailTrack rail_track)
{
EnforcePrecondition(false, ScriptObject::GetCompany() != OWNER_DEITY);
EnforcePrecondition(false, ::IsValidTile(tile));
EnforcePrecondition(false, ::IsPlainRailTile(tile) || ::IsLevelCrossingTile(tile));
EnforcePrecondition(false, GetRailTracks(tile) & rail_track);
EnforcePrecondition(false, KillFirstBit((uint)rail_track) == 0);
return ScriptObject::Command<CMD_REMOVE_RAILROAD_TRACK>::Do(tile, tile, FindFirstTrack((::TrackBits)rail_track));
}
/* static */ bool ScriptRail::AreTilesConnected(TileIndex from, TileIndex tile, TileIndex to)
{
if (!IsRailTile(tile)) return false;
if (from == to || ScriptMap::DistanceManhattan(from, tile) != 1 || ScriptMap::DistanceManhattan(tile, to) != 1) return false;
if (to < from) ::Swap(from, to);
if (tile - from == 1) {
if (to - tile == 1) return (GetRailTracks(tile) & RAILTRACK_NE_SW) != 0;
if (to - tile == ::MapSizeX()) return (GetRailTracks(tile) & RAILTRACK_NE_SE) != 0;
} else if (tile - from == ::MapSizeX()) {
if (tile - to == 1) return (GetRailTracks(tile) & RAILTRACK_NW_NE) != 0;
if (to - tile == 1) return (GetRailTracks(tile) & RAILTRACK_NW_SW) != 0;
if (to - tile == ::MapSizeX()) return (GetRailTracks(tile) & RAILTRACK_NW_SE) != 0;
} else {
return (GetRailTracks(tile) & RAILTRACK_SW_SE) != 0;
}
NOT_REACHED();
}
/**
* Prepare the second parameter for CmdBuildRailroadTrack and CmdRemoveRailroadTrack. The direction
* depends on all three tiles. Sometimes the third tile needs to be adjusted.
*/
static Track SimulateDrag(TileIndex from, TileIndex tile, TileIndex *to)
{
int diag_offset = abs(abs((int)::TileX(*to) - (int)::TileX(tile)) - abs((int)::TileY(*to) - (int)::TileY(tile)));
Track track = TRACK_BEGIN;
if (::TileY(from) == ::TileY(*to)) {
track = TRACK_X;
*to -= Clamp((int)::TileX(*to) - (int)::TileX(tile), -1, 1);
} else if (::TileX(from) == ::TileX(*to)) {
track = TRACK_Y;
*to -= ::MapSizeX() * Clamp((int)::TileY(*to) - (int)::TileY(tile), -1, 1);
} else if (::TileY(from) < ::TileY(tile)) {
if (::TileX(*to) < ::TileX(tile)) {
track = TRACK_UPPER;
} else {
track = TRACK_LEFT;
}
if (diag_offset != 0) {
*to -= Clamp((int)::TileX(*to) - (int)::TileX(tile), -1, 1);
} else {
*to -= ::MapSizeX() * Clamp((int)::TileY(*to) - (int)::TileY(tile), -1, 1);
}
} else if (::TileY(from) > ::TileY(tile)) {
if (::TileX(*to) < ::TileX(tile)) {
track = TRACK_RIGHT;
} else {
track = TRACK_LOWER;
}
if (diag_offset != 0) {
*to -= Clamp((int)::TileX(*to) - (int)::TileX(tile), -1, 1);
} else {
*to -= ::MapSizeX() * Clamp((int)::TileY(*to) - (int)::TileY(tile), -1, 1);
}
} else if (::TileX(from) < ::TileX(tile)) {
if (::TileY(*to) < ::TileY(tile)) {
track = TRACK_UPPER;
} else {
track = TRACK_RIGHT;
}
if (diag_offset == 0) {
*to -= Clamp((int)::TileX(*to) - (int)::TileX(tile), -1, 1);
} else {
*to -= ::MapSizeX() * Clamp((int)::TileY(*to) - (int)::TileY(tile), -1, 1);
}
} else if (::TileX(from) > ::TileX(tile)) {
if (::TileY(*to) < ::TileY(tile)) {
track = TRACK_LEFT;
} else {
track = TRACK_LOWER;
}
if (diag_offset == 0) {
*to -= Clamp((int)::TileX(*to) - (int)::TileX(tile), -1, 1);
} else {
*to -= ::MapSizeX() * Clamp((int)::TileY(*to) - (int)::TileY(tile), -1, 1);
}
}
return 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)));
Track track = SimulateDrag(from, tile, &to);
return ScriptObject::Command<CMD_BUILD_RAILROAD_TRACK>::Do(to, tile, (::RailType)ScriptRail::GetCurrentRailType(), track, false, true);
}
/* static */ bool ScriptRail::RemoveRail(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);
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)));
Track track = SimulateDrag(from, tile, &to);
return ScriptObject::Command<CMD_REMOVE_RAILROAD_TRACK>::Do(to, tile, track);
}
/**
* Contains information about the trackdir that belongs to a track when entering
* from a specific direction.
*/
struct ScriptRailSignalData {
Track track; ///< The track that will be taken to travel.
Trackdir trackdir; ///< The Trackdir belonging to that track.
uint signal_cycles; ///< How many times the signal should be cycled in order to build it in the correct direction.
};
static const int NUM_TRACK_DIRECTIONS = 3; ///< The number of directions you can go when entering a tile.
/**
* List information about the trackdir and number of needed cycles for building signals when
* entering a track from a specific direction. The first index is the difference between the
* TileIndex of the previous and current tile, where (-)MapSizeX is replaced with -2 / 2 and
* 2 it added.
*/
static const ScriptRailSignalData _possible_trackdirs[5][NUM_TRACK_DIRECTIONS] = {
{{TRACK_UPPER, TRACKDIR_UPPER_E, 0}, {TRACK_Y, TRACKDIR_Y_SE, 0}, {TRACK_LEFT, TRACKDIR_LEFT_S, 1}},
{{TRACK_RIGHT, TRACKDIR_RIGHT_S, 1}, {TRACK_X, TRACKDIR_X_SW, 1}, {TRACK_UPPER, TRACKDIR_UPPER_W, 1}},
{{INVALID_TRACK, INVALID_TRACKDIR, 0}, {INVALID_TRACK, INVALID_TRACKDIR, 0}, {INVALID_TRACK, INVALID_TRACKDIR, 0}},
{{TRACK_LOWER, TRACKDIR_LOWER_E, 0}, {TRACK_X, TRACKDIR_X_NE, 0}, {TRACK_LEFT, TRACKDIR_LEFT_N, 0}},
{{TRACK_RIGHT, TRACKDIR_RIGHT_N, 0}, {TRACK_Y, TRACKDIR_Y_NW, 1}, {TRACK_LOWER, TRACKDIR_LOWER_W, 1}}
};
/* static */ ScriptRail::SignalType ScriptRail::GetSignalType(TileIndex tile, TileIndex front)
{
if (ScriptMap::DistanceManhattan(tile, front) != 1) return SIGNALTYPE_NONE;
if (!::IsTileType(tile, MP_RAILWAY) || !::HasSignals(tile)) return SIGNALTYPE_NONE;
int data_index = 2 + (::TileX(front) - ::TileX(tile)) + 2 * (::TileY(front) - ::TileY(tile));
for (int i = 0; i < NUM_TRACK_DIRECTIONS; i++) {
const Track &track = _possible_trackdirs[data_index][i].track;
if (!(::TrackToTrackBits(track) & GetRailTracks(tile))) continue;
if (!HasSignalOnTrack(tile, track)) continue;
if (!HasSignalOnTrackdir(tile, _possible_trackdirs[data_index][i].trackdir)) continue;
SignalType st = (SignalType)::GetSignalType(tile, track);
if (HasSignalOnTrackdir(tile, ::ReverseTrackdir(_possible_trackdirs[data_index][i].trackdir))) st = (SignalType)(st | SIGNALTYPE_TWOWAY);
return st;
}
return SIGNALTYPE_NONE;
}
/**
* Check if signal_type is a valid SignalType.
*/
static bool IsValidSignalType(int signal_type)
{
if (signal_type < ScriptRail::SIGNALTYPE_NORMAL || signal_type > ScriptRail::SIGNALTYPE_COMBO_TWOWAY) return false;
if (signal_type > ScriptRail::SIGNALTYPE_PBS_ONEWAY && signal_type < ScriptRail::SIGNALTYPE_NORMAL_TWOWAY) return false;
return true;
}
/* static */ bool ScriptRail::BuildSignal(TileIndex tile, TileIndex front, SignalType signal)
{
EnforcePrecondition(false, ScriptObject::GetCompany() != OWNER_DEITY);
EnforcePrecondition(false, ScriptMap::DistanceManhattan(tile, front) == 1)
EnforcePrecondition(false, ::IsPlainRailTile(tile));
EnforcePrecondition(false, ::IsValidSignalType(signal));
Track track = INVALID_TRACK;
uint signal_cycles;
int data_index = 2 + (::TileX(front) - ::TileX(tile)) + 2 * (::TileY(front) - ::TileY(tile));
for (int i = 0; i < NUM_TRACK_DIRECTIONS; i++) {
const Track &t = _possible_trackdirs[data_index][i].track;
if (!(::TrackToTrackBits(t) & GetRailTracks(tile))) continue;
track = t;
signal_cycles = _possible_trackdirs[data_index][i].signal_cycles;
break;
}
EnforcePrecondition(false, track != INVALID_TRACK);
if (signal < SIGNALTYPE_TWOWAY) {
if (signal != SIGNALTYPE_PBS && signal != SIGNALTYPE_PBS_ONEWAY) signal_cycles++;
} else {
signal_cycles = 0;
}
::SignalType sig_type = (::SignalType)(signal >= SIGNALTYPE_TWOWAY ? signal ^ SIGNALTYPE_TWOWAY : signal);
return ScriptObject::Command<CMD_BUILD_SIGNALS>::Do(tile, track, sig_type, ::SIG_ELECTRIC, false, false, false, ::SIGTYPE_NORMAL, ::SIGTYPE_NORMAL, signal_cycles, 0);
}
/* static */ bool ScriptRail::RemoveSignal(TileIndex tile, TileIndex front)
{
EnforcePrecondition(false, ScriptObject::GetCompany() != OWNER_DEITY);
EnforcePrecondition(false, ScriptMap::DistanceManhattan(tile, front) == 1)
EnforcePrecondition(false, GetSignalType(tile, front) != SIGNALTYPE_NONE);
Track track = INVALID_TRACK;
int data_index = 2 + (::TileX(front) - ::TileX(tile)) + 2 * (::TileY(front) - ::TileY(tile));
for (int i = 0; i < NUM_TRACK_DIRECTIONS; i++) {
const Track &t = _possible_trackdirs[data_index][i].track;
if (!(::TrackToTrackBits(t) & GetRailTracks(tile))) continue;
track = t;
break;
}
EnforcePrecondition(false, track != INVALID_TRACK);
return ScriptObject::Command<CMD_REMOVE_SIGNALS>::Do(tile, track);
}
/* static */ Money ScriptRail::GetBuildCost(RailType railtype, BuildType build_type)
{
if (!ScriptRail::IsRailTypeAvailable(railtype)) return -1;
switch (build_type) {
case BT_TRACK: return ::RailBuildCost((::RailType)railtype);
case BT_SIGNAL: return ::GetPrice(PR_BUILD_SIGNALS, 1, nullptr);
case BT_DEPOT: return ::GetPrice(PR_BUILD_DEPOT_TRAIN, 1, nullptr);
case BT_STATION: return ::GetPrice(PR_BUILD_STATION_RAIL, 1, nullptr) + ::GetPrice(PR_BUILD_STATION_RAIL_LENGTH, 1, nullptr);
case BT_WAYPOINT: return ::GetPrice(PR_BUILD_WAYPOINT_RAIL, 1, nullptr);
default: return -1;
}
}
/* static */ int32 ScriptRail::GetMaxSpeed(RailType railtype)
{
if (!ScriptRail::IsRailTypeAvailable(railtype)) return -1;
return ::GetRailTypeInfo((::RailType)railtype)->max_speed;
}
/* static */ uint16 ScriptRail::GetMaintenanceCostFactor(RailType railtype)
{
if (!ScriptRail::IsRailTypeAvailable(railtype)) return 0;
return ::GetRailTypeInfo((::RailType)railtype)->maintenance_multiplier;
}
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