OpenTTD Source 20250312-master-gcdcc6b491d
LinkGraph::BaseEdge Struct Reference

An edge in the link graph. More...

#include <linkgraph.h>

Public Member Functions

 BaseEdge (NodeID dest_node=INVALID_NODE)
 Create an edge.
 
uint32_t TravelTime () const
 Get edge's average travel time.
 
TimerGameEconomy::Date LastUpdate () const
 Get the date of the last update to any part of the edge's capacity.
 
void Update (uint capacity, uint usage, uint32_t time, EdgeUpdateMode mode)
 Update an edge.
 
void Restrict ()
 
void Release ()
 
bool operator< (const BaseEdge &rhs) const
 Comparison operator based on dest_node.
 
bool operator< (NodeID rhs) const
 

Data Fields

uint capacity = 0
 Capacity of the link.
 
uint usage = 0
 Usage of the link.
 
uint64_t travel_time_sum = 0
 Sum of the travel times of the link, in ticks.
 
TimerGameEconomy::Date last_unrestricted_update {}
 When the unrestricted part of the link was last updated.
 
TimerGameEconomy::Date last_restricted_update {}
 When the restricted part of the link was last updated.
 
NodeID dest_node = INVALID_NODE
 Destination of the edge.
 

Friends

bool operator< (NodeID lhs, const LinkGraph::BaseEdge &rhs)
 

Detailed Description

An edge in the link graph.

Corresponds to a link between two stations.

Definition at line 42 of file linkgraph.h.

Constructor & Destructor Documentation

◆ BaseEdge()

LinkGraph::BaseEdge::BaseEdge ( NodeID  dest_node = INVALID_NODE)

Member Function Documentation

◆ LastUpdate()

TimerGameEconomy::Date LinkGraph::BaseEdge::LastUpdate ( ) const
inline

Get the date of the last update to any part of the edge's capacity.

Returns
Last update.

Definition at line 62 of file linkgraph.h.

References last_restricted_update, and last_unrestricted_update.

◆ operator<() [1/2]

bool LinkGraph::BaseEdge::operator< ( const BaseEdge rhs) const
inline

Comparison operator based on dest_node.

Definition at line 69 of file linkgraph.h.

References dest_node.

◆ operator<() [2/2]

bool LinkGraph::BaseEdge::operator< ( NodeID  rhs) const
inline

Definition at line 74 of file linkgraph.h.

◆ Release()

void LinkGraph::BaseEdge::Release ( )
inline

Definition at line 66 of file linkgraph.h.

◆ Restrict()

void LinkGraph::BaseEdge::Restrict ( )
inline

Definition at line 65 of file linkgraph.h.

◆ TravelTime()

uint32_t LinkGraph::BaseEdge::TravelTime ( ) const
inline

Get edge's average travel time.

Returns
Travel time, in ticks.

Definition at line 56 of file linkgraph.h.

References capacity.

Referenced by LinkGraphOverlay::AddLinks(), and MultiCommodityFlow::Dijkstra().

◆ Update()

void LinkGraph::BaseEdge::Update ( uint  capacity,
uint  usage,
uint32_t  travel_time,
EdgeUpdateMode  mode 
)

Update an edge.

If mode contains UM_REFRESH refresh the edge to have at least the given capacity and usage, otherwise add the capacity, usage and travel time. In any case set the respective update timestamp(s), according to the given mode.

Parameters
capacityCapacity to be added/updated.
usageUsage to be added.
travel_timeTravel time to be added, in ticks.
modeUpdate mode to be applied.

Definition at line 217 of file linkgraph.cpp.

References TimerGameEconomy::date, EUM_INCREASE, EUM_REFRESH, EUM_RESTRICTED, and EUM_UNRESTRICTED.

Friends And Related Symbol Documentation

◆ operator<

bool operator< ( NodeID  lhs,
const LinkGraph::BaseEdge rhs 
)
friend

Definition at line 79 of file linkgraph.h.

Field Documentation

◆ capacity

uint LinkGraph::BaseEdge::capacity = 0

◆ dest_node

NodeID LinkGraph::BaseEdge::dest_node = INVALID_NODE

Destination of the edge.

Definition at line 48 of file linkgraph.h.

Referenced by BaseEdge(), operator<(), LinkGraphJob::NodeAnnotation::operator[](), and LinkGraphJob::NodeAnnotation::operator[]().

◆ last_restricted_update

TimerGameEconomy::Date LinkGraph::BaseEdge::last_restricted_update {}

When the restricted part of the link was last updated.

Definition at line 47 of file linkgraph.h.

Referenced by LinkGraph::BaseNode::AddEdge(), BaseEdge(), and LastUpdate().

◆ last_unrestricted_update

TimerGameEconomy::Date LinkGraph::BaseEdge::last_unrestricted_update {}

When the unrestricted part of the link was last updated.

Definition at line 46 of file linkgraph.h.

Referenced by LinkGraph::BaseNode::AddEdge(), BaseEdge(), and LastUpdate().

◆ travel_time_sum

uint64_t LinkGraph::BaseEdge::travel_time_sum = 0

Sum of the travel times of the link, in ticks.

Definition at line 45 of file linkgraph.h.

Referenced by LinkGraph::BaseNode::AddEdge(), BaseEdge(), and LinkGraph::Merge().

◆ usage

uint LinkGraph::BaseEdge::usage = 0

Usage of the link.

Definition at line 44 of file linkgraph.h.

Referenced by LinkGraph::BaseNode::AddEdge(), LinkGraphOverlay::AddLinks(), BaseEdge(), and LinkGraph::Merge().


The documentation for this struct was generated from the following files: