yapf_ship_regions.cpp File Reference

Implementation of YAPF for water regions, which are used for finding intermediate ship destinations. More...

#include "../../stdafx.h"
#include "../../ship.h"
#include "yapf.hpp"
#include "yapf_ship_regions.h"
#include "../water_regions.h"
#include "../../safeguards.h"

Go to the source code of this file.

Data Structures
struct	CYapfRegionPatchNodeKey
	Yapf Node Key that represents a single patch of interconnected water within a water region. More...
struct	CYapfRegionNodeT< Tkey_ >
	Yapf Node for water regions. More...
class	CYapfOriginRegionT< Types >
	YAPF origin for water regions. More...
class	CYapfDestinationRegionT< Types >
	YAPF destination provider for water regions. More...
class	CYapfFollowRegionT< Types >
	YAPF node following for water region pathfinding. More...
class	CYapfCostRegionT< Types >
	Cost Provider of YAPF for water regions. More...
struct	DummyFollower
struct	CYapfRegion_TypesT< Tpf_, Tnode_list >
	Config struct of YAPF for route planning. More...
struct	CYapfRegionWater

Typedefs
typedef CNodeList_HashTableT< CYapfRegionNodeT< CYapfRegionPatchNodeKey >, 12, 12 >	CRegionNodeListWater

Functions
uint	ManhattanDistance (const CYapfRegionPatchNodeKey &a, const CYapfRegionPatchNodeKey &b)
std::vector< WaterRegionPatchDesc >	YapfShipFindWaterRegionPath (const Ship *v, TileIndex start_tile, int max_returned_path_length)
	Finds a path at the water region level. More...

Variables
constexpr int	DIRECT_NEIGHBOR_COST = 100
constexpr int	NODES_PER_REGION = 4
constexpr int	MAX_NUMBER_OF_NODES = 65536

Detailed Description

Implementation of YAPF for water regions, which are used for finding intermediate ship destinations.

Definition in file yapf_ship_regions.cpp.

Function Documentation

YapfShipFindWaterRegionPath()

std::vector<WaterRegionPatchDesc> YapfShipFindWaterRegionPath	(	const Ship *	v,
		TileIndex	start_tile,
		int	max_returned_path_length
	)

Finds a path at the water region level.

Note that the starting region is always included if the path was found.

Parameters

v	The ship to find a path for.
start_tile	The tile to start searching from.
max_returned_path_length	The maximum length of the path that will be returned.

Returns

A path of water region patches, or an empty vector if no path was found.

Definition at line 310 of file yapf_ship_regions.cpp.