rle.core.ui
Class FieldOfViewEngineBase

java.lang.Object
  rle.core.vm.PlugInBase
      rle.core.ui.FieldOfViewEngineBase

All Implemented Interfaces:

FieldOfViewEngine, PlugIn

public class FieldOfViewEngineBase
extends PlugInBase
implements FieldOfViewEngine

Recursive field-of-view class implementing a spiraling shadow-casting algorithm. This algorithm chosen because it can establish field-of-view by visiting each grid at most once, and is (for me) much simpler to implement than octant oriented or non-recursive approaches. -TSS

Field Summary

Fields inherited from class rle.core.vm.PlugInBase

config, context, parameters

Constructor Summary

FieldOfViewEngineBase()

Method Summary

java.util.Set<RLPoint>

lineOfSightPoints(Locator locator, int distance) Compute and return the list of RLPoints in line-of-sight to the given region.

Methods inherited from class rle.core.vm.PlugInBase

config, getContext, getParameters, paramMap, setConfig, setParameters

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldOfViewEngineBase

public FieldOfViewEngineBase()

Method Detail

lineOfSightPoints

public java.util.Set<RLPoint> lineOfSightPoints(Locator locator,
                                                int distance)

Compute and return the list of RLPoints in line-of-sight to the given region. In general, this method should be very fast.

Specified by:

lineOfSightPoints in interface FieldOfViewEngine