Karel J Robot OOP approach to learning computer science

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Presentation transcript:

Karel J Robot OOP approach to learning computer science “Its study involves development of the ability to abstract the essential features of a problem and its solution, to reason effectively in the abstract plane, without confusion by a mass of highly relevant detail.” (C. Hoare)

Karel J (the Robot) Robot World A flat plane of streets (east-west) and avenues (north-south) Avenues Streets Corner (many robots may occupy)

Karel’s World (cont’d) Contains Beepers and Walls Beepers May be picked up, carried, and placed again May place several on a corner and they don’t interfere with Robot movement

Robot Capabilities Move Turn Sense surroundings hear beepers (on same corner) Determine direction it is facing Pick up, carry, and put down beepers Turn itself off

Karel-Werke Factory - Builds the robots Factory – Delivers the robots “factories” (auf Deutsch) Factory - Builds the robots Standard model Write a spec for a new model Extension of an existing base model Factory – Delivers the robots

Tasks & Situations Examples Move to a corner (3rd St. & 5th Ave.) Run a race Escape from a maze Find a beeper and deliver it to the origin