wyvern.kernel.maps
Class TopFinder

java.lang.Object
  wyvern.kernel.maps.TopFinder

public class TopFinder

extends java.lang.Object

Find the top visible object at a given map location.

Version:

1.0, Nov 10, 1997

Author:

Eric Weber

Nested Class Summary

protected static class

TopFinder.LayerVisitor Used to visit every object at a map location and keep an ordered list of what it sees.

Constructor Summary

TopFinder()

Method Summary

static GameObject	topObject(GameMap map, int x, int y) Find the top object in a map location.
static GameObject	topObject(GameMap map, int x, int y, Predicate p) Find the top (i.e. highest drawing layer) object at a map location that passes a specified predicate.

Methods inherited from class java.lang.Object

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

Constructor Detail

TopFinder

public TopFinder()

Method Detail

topObject

public static GameObject topObject(GameMap map,
                                   int x,
                                   int y,
                                   Predicate p)

Find the top (i.e. highest drawing layer) object at a map location that passes a specified predicate.

Parameters:

map - The map to search.

x - The horizontal location.

y - The vertical location.

p - a predicate that returns true if the object is OK.

Returns:

The topmost object at that location, or null if none.

topObject

public static GameObject topObject(GameMap map,
                                   int x,
                                   int y)

Find the top object in a map location.

Parameters:

map - The map to search.

x - The horizontal location.

y - The vertical location.

Returns:

The topmost object at that location, or null if none.