Handling of ships. More...

#include "stdafx.h"
#include "ship.h"
#include "landscape.h"
#include "timetable.h"
#include "news_func.h"
#include "company_func.h"
#include "depot_base.h"
#include "station_base.h"
#include "newgrf_engine.h"
#include "pathfinder/yapf/yapf.h"
#include "pathfinder/yapf/yapf_ship_regions.h"
#include "newgrf_sound.h"
#include "strings_func.h"
#include "window_func.h"
#include "timer/timer_game_calendar.h"
#include "timer/timer_game_economy.h"
#include "vehicle_func.h"
#include "sound_func.h"
#include "ai/ai.hpp"
#include "game/game.hpp"
#include "engine_base.h"
#include "company_base.h"
#include "tunnelbridge_map.h"
#include "zoom_func.h"
#include "framerate_type.h"
#include "industry.h"
#include "industry_map.h"
#include "ship_cmd.h"
#include "table/strings.h"
#include <unordered_set>
#include "safeguards.h"

Data Structures
struct	ShipSubcoordData
	Structure for ship sub-coordinate data for moving into a new tile via a Diagdir onto a Track. More...

Functions
WaterClass	GetEffectiveWaterClass (TileIndex tile)
	Determine the effective WaterClass for a ship travelling on a tile.
template<>
bool	IsValidImageIndex< VEH_SHIP > (uint8_t image_index)
static TrackBits	GetTileShipTrackStatus (TileIndex tile)
static void	GetShipIcon (EngineID engine, EngineImageType image_type, VehicleSpriteSeq *result)
void	DrawShipEngine (int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal, EngineImageType image_type)
void	GetShipSpriteSize (EngineID engine, uint &width, uint &height, int &xoffs, int &yoffs, EngineImageType image_type)
	Get the size of the sprite of a ship sprite heading west (used for lists).
static const Depot *	FindClosestShipDepot (const Vehicle *v, uint max_distance)
static void	CheckIfShipNeedsService (Vehicle *v)
static bool	CheckReverseShip (const Ship v, Trackdir trackdir=nullptr)
static bool	CheckShipStayInDepot (Ship *v)
	Checks whether a ship should stay in the depot.
static uint	ShipAccelerate (Vehicle *v)
	Accelerates the ship towards its target speed.
static void	ShipArrivesAt (const Vehicle v, Station st)
	Ship arrives at a dock.
static Track	ChooseShipTrack (Ship *v, TileIndex tile, TrackBits tracks)
	Runs the pathfinder to choose a track to continue along.
static TrackBits	GetAvailShipTracks (TileIndex tile, DiagDirection dir)
	Get the available water tracks on a tile for a ship entering a tile.
static int	ShipTestUpDownOnLock (const Ship *v)
	Test if a ship is in the centre of a lock and should move up or down.
static bool	ShipMoveUpDownOnLock (Ship *v)
	Test and move a ship up or down in a lock.
bool	IsShipDestinationTile (TileIndex tile, StationID station)
	Test if a tile is a docking tile for the given station.
static void	ReverseShipIntoTrackdir (Ship *v, Trackdir trackdir)
static void	ReverseShip (Ship *v)
static void	ShipController (Ship *v)
CommandCost	CmdBuildShip (DoCommandFlags flags, TileIndex tile, const Engine e, Vehicle *ret)
	Build a ship.

Variables
constexpr int	MAX_SHIP_DEPOT_SEARCH_DISTANCE = 80
	Max distance in tiles (as the crow flies) to search for depots when user clicks "go to depot".
static const uint16_t	_ship_sprites [] = {0x0E5D, 0x0E55, 0x0E65, 0x0E6D}
static const ShipSubcoordData	_ship_subcoord [DIAGDIR_END][TRACK_END]
	Ship sub-coordinate data for moving into a new tile via a Diagdir onto a Track.

Detailed Description

Handling of ships.

Definition in file ship_cmd.cpp.

Function Documentation

◆ CheckIfShipNeedsService()

void CheckIfShipNeedsService ( Vehicle * v )

static

Definition at line 203 of file ship_cmd.cpp.

◆ CheckReverseShip()

bool CheckReverseShip	(	const Ship *	v,
		Trackdir *	trackdir = nullptr )

static

Definition at line 355 of file ship_cmd.cpp.

◆ CheckShipStayInDepot()

bool CheckShipStayInDepot ( Ship * v )

static

Checks whether a ship should stay in the depot.

Parameters

v	Ship to check.

Returns: True if the ship should stay in the depot, false if it has to leave.

Definition at line 366 of file ship_cmd.cpp.

References AxisToTrackBits(), Vehicle::cur_speed, Vehicle::current_order, Vehicle::dest_tile, DiagDirToDir(), Vehicle::direction, GetDepotIndex(), Order::GetDestination(), GetShipDepotAxis(), Ship::GetVehicleTrackdir(), HasVehicleOnTile(), Hidden, INVALID_TILE, InvalidateWindowData(), Vehicle::IsChainInDepot(), IsShipDepotTile(), Order::IsType(), Vehicle::IsWaitingForUnbunching(), Vehicle::LeaveUnbunchingDepot(), Ship::PlayLeaveStationSound(), BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Reset(), ReverseDir(), Ship::rotation, SetWindowClassesDirty(), SetWindowDirty(), Ship::state, Vehicle::tile, TRACKDIR_X_NE, TRACKDIR_Y_NW, TrackdirToExitdir(), SpecializedVehicle< T, Type >::UpdateViewport(), VehicleEnterDepot(), VehicleServiceInDepot(), Vehicle::vehstatus, WC_SHIPS_LIST, and WC_VEHICLE_DEPOT.

◆ ChooseShipTrack()

Track ChooseShipTrack	(	Ship *	v,
		TileIndex	tile,
		TrackBits	tracks )

static

Runs the pathfinder to choose a track to continue along.

Parameters

v	Ship to navigate
tile	Tile, the ship is about to enter
tracks	Available track choices on tile

Returns: Track to choose, or INVALID_TRACK when to reverse.

Definition at line 465 of file ship_cmd.cpp.

References Vehicle::dest_tile, FindFirstTrack(), Vehicle::HandlePathfindingResult(), HasBit(), INVALID_TILE, IsDiagonalTrack(), Ship::path, Ship::state, TrackBitsToTrack(), TrackdirToTrack(), TrackToOppositeTrack(), and YapfShipChooseTrack().

◆ CmdBuildShip()

CommandCost CmdBuildShip	(	DoCommandFlags	flags,
		TileIndex	tile,
		const Engine *	e,
		Vehicle **	ret )

Build a ship.

Parameters

	flags	type of operation.
	tile	tile of the depot where ship is built.
	e	the engine to build.
[out]	ret	the vehicle that has been built.

Returns: the cost of this operation or an error.

Definition at line 865 of file ship_cmd.cpp.

References _current_company, ShipVehicleInfo::acceleration, BuiltAsPrototype, TimerGameCalendar::date, TimerGameEconomy::date, DefaultPalette, Engine::DetermineCapacity(), DiagDirToDir(), ExclusivePreview, Execute, Engine::flags, Engine::GetDefaultCargoType(), Engine::GetLifeLengthInDays(), GetShipDepotDirection(), GetShipDepotNorthTile(), GetSlopePixelZ(), Hidden, IsValidCargoType(), Vehicle::owner, Engine::reliability, Engine::reliability_spd_dec, settings, Stopped, BaseBitSet< Timpl, Tvalue_type, Tstorage, Tmask >::Test(), TILE_SIZE, TileX(), TileY(), TRACK_BIT_DEPOT, and TimerGameCalendar::year.

Referenced by CmdBuildVehicle().

◆ DrawShipEngine()

void DrawShipEngine	(	int	left,
		int	right,
		int	preferred_x,
		int	y,
		EngineID	engine,
		PaletteID	pal,
		EngineImageType	image_type )

Definition at line 96 of file ship_cmd.cpp.

◆ FindClosestShipDepot()

const Depot * FindClosestShipDepot	(	const Vehicle *	v,
		uint	max_distance )

static

Definition at line 150 of file ship_cmd.cpp.

◆ GetAvailShipTracks()

TrackBits GetAvailShipTracks	(	TileIndex	tile,
		DiagDirection	dir )

inlinestatic

Get the available water tracks on a tile for a ship entering a tile.

Parameters

tile	The tile about to enter.
dir	The entry direction.

Returns: The available trackbits on the next tile.

Definition at line 504 of file ship_cmd.cpp.

References DiagdirReachesTracks().

◆ GetEffectiveWaterClass()

WaterClass GetEffectiveWaterClass ( TileIndex tile )

Determine the effective WaterClass for a ship travelling on a tile.

Parameters

tile	Tile of interest

Returns: the waterclass to be used by the ship.

Definition at line 53 of file ship_cmd.cpp.

References Canal, GetTunnelBridgeTransportType(), GetWaterClass(), HalfTileWater, HasTileWaterClass(), IsTileType(), Railway, Sea, TRANSPORT_WATER, and TunnelBridge.

Referenced by CYapfCostShipT< Types >::PfCalcCost(), and Ship::UpdateCache().

◆ GetShipIcon()

void GetShipIcon	(	EngineID	engine,
		EngineImageType	image_type,
		VehicleSpriteSeq *	result )

static

Definition at line 80 of file ship_cmd.cpp.

◆ GetShipSpriteSize()

void GetShipSpriteSize	(	EngineID	engine,
		uint &	width,
		uint &	height,
		int &	xoffs,
		int &	yoffs,
		EngineImageType	image_type )

Get the size of the sprite of a ship sprite heading west (used for lists).

Parameters

	engine	The engine to get the sprite from.
[out]	width	The width of the sprite.
[out]	height	The height of the sprite.
[out]	xoffs	Number of pixels to shift the sprite to the right.
[out]	yoffs	Number of pixels to shift the sprite downwards.
	image_type	Context the sprite is used in.

Definition at line 119 of file ship_cmd.cpp.

References VehicleSpriteSeq::GetBounds(), Rect::Height(), Rect, UnScaleGUI(), and Rect::Width().

Referenced by EnginePreviewWindow::UpdateWidgetSize().

◆ GetTileShipTrackStatus()

TrackBits GetTileShipTrackStatus ( TileIndex tile )

inlinestatic

Definition at line 75 of file ship_cmd.cpp.

◆ IsShipDestinationTile()

bool IsShipDestinationTile	(	TileIndex	tile,
		StationID	station )

Test if a tile is a docking tile for the given station.

Parameters

tile	Docking tile to test.
station	Destination station.

Returns: true iff docking tile is next to station.

Definition at line 617 of file ship_cmd.cpp.

References DIAGDIR_BEGIN, DIAGDIR_END, Industry::GetByTile(), GetStationIndex(), Industry, IsDockingTile(), IsDockTile(), IsDockWaterPart(), IsOilRig(), IsTileType(), IsValidTile(), Industry::neutral_station, Station, and TileOffsByDiagDir().

Referenced by RemoveDock().

◆ IsValidImageIndex< VEH_SHIP >()

template<>

bool IsValidImageIndex< VEH_SHIP > ( uint8_t image_index )

Definition at line 70 of file ship_cmd.cpp.

◆ ReverseShip()

void ReverseShip ( Ship * v )

static

Definition at line 655 of file ship_cmd.cpp.

◆ ReverseShipIntoTrackdir()

void ReverseShipIntoTrackdir	(	Ship *	v,
		Trackdir	trackdir )

static

Definition at line 634 of file ship_cmd.cpp.

◆ ShipAccelerate()

uint ShipAccelerate ( Vehicle * v )

static

Accelerates the ship towards its target speed.

Parameters

v	Ship to accelerate.

Returns: Number of steps to move the ship.

Definition at line 414 of file ship_cmd.cpp.

References Vehicle::acceleration, VehicleCache::cached_max_speed, Vehicle::cur_speed, Vehicle::current_order, Vehicle::GetAdvanceDistance(), Vehicle::GetAdvanceSpeed(), Order::GetMaxSpeed(), Vehicle::progress, SetWindowWidgetDirty(), Vehicle::vcache, WC_VEHICLE_VIEW, and WID_VV_START_STOP.

◆ ShipArrivesAt()

void ShipArrivesAt	(	const Vehicle *	v,
		Station *	st )

static

Ship arrives at a dock.

If it is the first time, send out a news item.

Parameters

v	Ship that arrived.
st	Station being visited.

Definition at line 439 of file ship_cmd.cpp.

References _local_company, AddVehicleNewsItem(), ArrivalCompany, ArrivalOther, GetEncodedString(), HVOT_SHIP, AI::NewEvent(), Game::NewEvent(), and Vehicle::owner.

◆ ShipController()

void ShipController ( Ship * v )

static

Definition at line 669 of file ship_cmd.cpp.

◆ ShipMoveUpDownOnLock()

bool ShipMoveUpDownOnLock ( Ship * v )

static

Test and move a ship up or down in a lock.

Parameters

v	Ship to move.

Returns: true iff ship is moving up or down in a lock.

Definition at line 591 of file ship_cmd.cpp.

References Vehicle::cur_speed, SetWindowWidgetDirty(), ShipTestUpDownOnLock(), Vehicle::tick_counter, Vehicle::UpdatePosition(), SpecializedVehicle< T, Type >::UpdateViewport(), WC_VEHICLE_VIEW, WID_VV_START_STOP, and Vehicle::z_pos.

◆ ShipTestUpDownOnLock()

int ShipTestUpDownOnLock ( const Ship * v )

static

Test if a ship is in the centre of a lock and should move up or down.

Parameters

v	Ship being tested.

Returns: 0 if ship is not moving in lock, or -1 to move down, 1 to move up.

Definition at line 566 of file ship_cmd.cpp.

References Vehicle::direction, DirToDiagDir(), GetInclinedSlopeDirection(), GetLockPart(), GetTileMaxZ(), GetTileSlope(), GetTileZ(), IsLock(), IsTileType(), IsValidDiagDirection(), Middle, Vehicle::tile, TILE_HEIGHT, Water, Vehicle::x_pos, Vehicle::y_pos, and Vehicle::z_pos.

Referenced by ShipMoveUpDownOnLock().

Variable Documentation

◆ _ship_sprites

const uint16_t _ship_sprites[] = {0x0E5D, 0x0E55, 0x0E65, 0x0E6D}

static

Definition at line 67 of file ship_cmd.cpp.

◆ _ship_subcoord

const ShipSubcoordData _ship_subcoord[DIAGDIR_END][TRACK_END]

static

Ship sub-coordinate data for moving into a new tile via a Diagdir onto a Track.

Array indexes are Diagdir, Track. There will always be three possible tracks going into an adjacent tile via a Diagdir, so each Diagdir sub-array will have three valid and three invalid structures per Track.

Definition at line 522 of file ship_cmd.cpp.

◆ MAX_SHIP_DEPOT_SEARCH_DISTANCE

int MAX_SHIP_DEPOT_SEARCH_DISTANCE = 80

constexpr

Max distance in tiles (as the crow flies) to search for depots when user clicks "go to depot".

Definition at line 46 of file ship_cmd.cpp.

Referenced by Ship::FindClosestDepot().

Data Structures

Functions

Variables

Detailed Description

Function Documentation

◆ CheckIfShipNeedsService()

◆ CheckReverseShip()

◆ CheckShipStayInDepot()

◆ ChooseShipTrack()

◆ CmdBuildShip()

◆ DrawShipEngine()

◆ FindClosestShipDepot()

◆ GetAvailShipTracks()

◆ GetEffectiveWaterClass()

◆ GetShipIcon()

◆ GetShipSpriteSize()

◆ GetTileShipTrackStatus()

◆ IsShipDestinationTile()

◆ IsValidImageIndex< VEH_SHIP >()

◆ ReverseShip()

◆ ReverseShipIntoTrackdir()

◆ ShipAccelerate()

◆ ShipArrivesAt()

◆ ShipController()

◆ ShipMoveUpDownOnLock()

◆ ShipTestUpDownOnLock()

Variable Documentation

◆ _ship_sprites

◆ _ship_subcoord

◆ MAX_SHIP_DEPOT_SEARCH_DISTANCE