Wall

o1.robots.Wall

object Wall extends Square

The singleton object Wall represents walls, that is, squares that constitute unpassable barriers for robots. A robot can never be in the same location with a wall.

Since all wall locations in all robot worlds are alike and immutable, it is enough to have a single Wall object that can be placed anywhere in any robot world. There is no need for separate instances for each wall square.

Attributes

Graph
Supertypes: trait Square

class Object

trait Matchable

class Any
Self type: Wall.type

Members list

Inherited Not inherited +1

Not inherited
Square

Value members

Concrete methods

Fails to add the given robot to the square. Instead, the robot collides with the wall and is destroyed.

Parameters

arrivee: the robot attempting to arrive in the square

Attributes

Returns: false since the robot’s arrival failed

Does nothing, since there is no robot to remove in a wall square.

Inherited methods

Returns true if the square contains any robot or wall, false otherwise.

Inherited from:: Square

Concrete fields

false since there is a wall

true since a wall is an unpassable barrier

None since there is never any robot in a wall square

Generated with

This document is part of the ebook for O1 (aka CS-A1110 Programming 1), a course at Aalto University.