com.collegeboard.gridworld.actor
Class ActorWorld

java.lang.Object
  com.collegeboard.gridworld.world.World<Actor>
      com.collegeboard.gridworld.actor.ActorWorld

public class ActorWorld
extends World<Actor>

A world that is occupied by actors.

copyright© 2005 Cay S. Horstmann (http://horstmann.com)

Author:

Cay Horstmann

Constructor Summary

ActorWorld()
Constructs an actor world without an initial grid.

ActorWorld(Grid<Actor> grid)
Constructs an actor world with an initial grid.

Method Summary

void	add(Location loc, Actor occupant) Adds a actor to this world at a given location.
Actor	remove(Location loc) Removes an actor from this world.
void	step() This method is called when the user clicks on the step button, or when run mode has been activated by clicking the run button.

Methods inherited from class com.collegeboard.gridworld.world.World

add, addGridClass, addOccupantClass, getGrid, getGridClasses, getMessage, getOccupantClasses, locationClicked, setGrid, setMessage, show

Methods inherited from class java.lang.Object

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

Constructor Detail

ActorWorld

public ActorWorld()

Constructs an actor world without an initial grid.

ActorWorld

public ActorWorld(Grid<Actor> grid)

Constructs an actor world with an initial grid.

Parameters:

grid - the grid for this world.

Method Detail

step

public void step()

Description copied from class: World

This method is called when the user clicks on the step button, or when run mode has been activated by clicking the run button.

Overrides:

step in class World<Actor>

add

public void add(Location loc,
                Actor occupant)

Adds a actor to this world at a given location.

Overrides:

add in class World<Actor>

Parameters:

loc - the location at which to add the actor

occupant - the actor to add

remove

public Actor remove(Location loc)

Removes an actor from this world.

Overrides:

remove in class World<Actor>

Parameters:

loc - the location from which to remove an actor

Returns:

the removed actor, or null if there was no actor at the given location.