Package ch.sahits.game.openpatrician.engine.sea

Class AStarGraphProvider

java.lang.Object

ch.sahits.game.openpatrician.engine.sea.BaseGraphCalulationService

ch.sahits.game.openpatrician.engine.sea.AStarGraphProvider

@Component
@Lazy
public class AStarGraphProvider
extends BaseGraphCalulationService

Factory class to provide the graph for the AStar path finding calculation

Author:

Andi Hotz, (c) Sahits GmbH, 2016 Created on Jan 01, 2016

Field Summary

Fields inherited from class ch.sahits.game.openpatrician.engine.sea.BaseGraphCalulationService

imageService, map, pointInterner

Fields inherited from interface ch.sahits.game.graphic.image.model.MapGrid

CHECK_DISTANCE, DIAG_CHECK_DISTANCE

Constructor Summary

Constructors

Constructor	Description
AStarGraphProvider()

Method Summary

Modifier and Type	Method	Description
void	addDestinationPoint(javafx.geometry.Point2D newPoint, boolean isCity)	Add a new destination Node to the graph.
protected double	calculateWeight(javafx.geometry.Point2D from, javafx.geometry.Point2D to)	Calculate the weight between two nodes.
GraphAStar<javafx.geometry.Point2D>	getGraph()
void	initGraph(ch.sahits.game.openpatrician.event.data.HeuristicGraphInitialisationComplete event)

Methods inherited from class ch.sahits.game.openpatrician.engine.sea.BaseGraphCalulationService

getPoint, getSegments, getTangentialSegments, isOnSea

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AStarGraphProvider

public AStarGraphProvider()

Method Detail

initGraph

public void initGraph(ch.sahits.game.openpatrician.event.data.HeuristicGraphInitialisationComplete event)

addDestinationPoint

public void addDestinationPoint(javafx.geometry.Point2D newPoint,
                                boolean isCity)

Add a new destination Node to the graph. The new point is added to the heuristic as target and to the graph together with edges to its nearest neighbors and they back to the new node.

Parameters:

newPoint - new location to add to the graph

isCity - flag indicating if the new location is a city, which means the coordinates may not be located in the sea area.

calculateWeight

protected double calculateWeight(javafx.geometry.Point2D from,
                                 javafx.geometry.Point2D to)

Description copied from class: BaseGraphCalulationService

Calculate the weight between two nodes.

Specified by:

calculateWeight in class BaseGraphCalulationService

Parameters:

from - source node

to - destination node

Returns:

weight of the edge from node from to to

getGraph

public GraphAStar<javafx.geometry.Point2D> getGraph()