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The robot knows commands step, left, right, pick, put, paint, delay. You can use integer variables, multidimensional arrays, arithmetic and logic operators, procedures and functions with parameters.
The application includes a text editor, compiler, interpreter and debugger.
...First KAREL-3D is created in 1986 after Karel the Robot, in Slovakia ( before Czechoslovakia ) on 8 bit microcomputer PMD 85-2 for school kids to learn algorithm and what is programming, teach know how to solve a logical problem, like Spock and his children from the planet Vulcan ( live long and prosper ).
because it's fun
Actual WebGL version: https://sourceforge.net/projects/karel-3d-webgl/