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This document is part of the ebook for O1 (aka CS-A1110 Programming 1), a course at Aalto University.
This document is part of the ebook for O1 (aka CS-A1110 Programming 1), a course at Aalto University.
o1.robots.Wall$
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
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Supertypes
Self type
Members list
Fails to add the given robot to the square. Instead, the robot collides with the wall and is destroyed.
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.
Does nothing, since there is no robot to remove in a wall square.
Attributes
Returns true if the square contains any robot or wall, false otherwise.
Returns true if the square contains any robot or wall, false otherwise.
Attributes
Inherited from:
Square
false since there is a wall
false since there is a wall
Attributes
true since a wall is an unpassable barrier
true since a wall is an unpassable barrier
Attributes
None since there is never any robot in a wall square
None since there is never any robot in a wall square
Attributes
