Karel J. Robot Premier Edition Change History

Started October 3, 2003

July 30, 2005: New versions of the simulator and the editing system were posted. They correct a drawing error.

May 31, 2005: The Karel Universe Editing System was uploaded.

March 16, 2005: There is a new version of the Karel J Robot Simulator.

March 2, 2005: A Simulator User's Guide was added to the Simulator page.

February 13, 2005: A complete set of world files can be found on the simulator page (with the world builder info). A complete set of robot class files can be found on the KJR front page. An idea for a programmers journal can be found on the front page also. (Near teaching notes.)

June 29, 2004

• Created a new remote controller that will let you create a remote control for any class, not just UrRobot. AutoRemote.Java.

November 2, 2003

• New assertions were added to KJRTest.java. You can now test the state of the world.
• You can now treat the world as an object. Use World.asObject() to retrieve an object representing the world.
• Robots that execute an error shutoff are now drawn with an X accross them to indicate this state.

November 1, 2003

• Remote Control was added to the New Features page
• A complete strategy/decorator framework was added to the New Features page. See "Beyond Chapter 4."

October 12, 2003

• Added a new section on Polymorphism.

October 7, 2003

• No changes to the simulator, but added links to Dan Eliot's Calculate PI pages.
  

October 6, 2003

• Added the ability to set the background color of the world with World.setWorldColor(Color color).  See the Java Docs.  Note that the colors you can now set such as this one as well as walls, etc. are not saved in the world files. They are just a feature of the current run. The world file definition is unchanged.
  

October 4, 2003

• Added cursors to the world builder (and mini builder) that better represent the main functions (dropping horizontal and vertical walls and dropping beepers). These won't work on all systems since not all support custom cursors.

October 3, 2003

• Fixed the drawing of walls. They no longer have occasional small gaps at the corners.
• Fixed the world builder (and mini builder) so that they update correctly when you change the number of streets or avenues.
• Fixed the world builder (and mini builder) so that you can no longer drop walls and beepers outside the visible portion of the world.