Class WorldEntity

java.lang.Object
   |
   +----Symbol
           |
           +----WorldEntity

public class WorldEntity

extends Symbol

Author:

Peter Sagerson, petersag@wpi.edu

objects

A list of the beepers and blocks in the world entity.

WorldEntity(String)

addBeepers(int, int, int)

Adds the given number of beepers to the world entity.

addBlock(int, int)

Adds one block to the world entity.

addWall(int, int, int, int)

Adds the individual blocks of a wall to the Vector.

define(Node, RobotWorld)

Defines a new world entity from a branch of the abstract syntax tree.

getObjects()

A wrapper for Vector.elements().

 private Vector objects

A list of the beepers and blocks in the world entity.

 public WorldEntity(String inName) throws NameLengthException

 public Enumeration getObjects()

A wrapper for Vector.elements().

 private void addBlock(int x,
                       int y) throws BadCoordException

Adds one block to the world entity.

 private void addBeepers(int x,
                         int y,
                         int count) throws BadCoordException, BadCountException

Adds the given number of beepers to the world entity.

 private void addWall(int xStart,
                      int yStart,
                      int Direction,
                      int length) throws BadCoordException

Adds the individual blocks of a wall to the Vector.

Throws: BadCoordException

if the wall extends beyond 0 in either direction.

 public void define(Node root,
                    RobotWorld world)

Defines a new world entity from a branch of the abstract syntax tree. The root node should be the node for the WorldEntity statement.

Parameters:

root - should be an ASTWorldEntity

world - allows access to RobotWorld.eval() and error reporting.