Lenny, the turtle painter

Web drawing application which uses "Turtle graphics". Turtle graphics are vector graphics using a relative cursor (the "turtle") upon a cartesian plane (1024x800, centered on upper left corner). The turtle has three attributes: a location (turtle_x, turtle_y), direction (turtle_angle_deg), and a pen.
The pen, too, has attributes: color (turtle_pen_color, see the color list) width (or thickness, turtle_pen_width) and on/off state (turtle_pen_status, up = 0, down = 1). This program was written in JavaScript and HTML5.

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Microsoft Internet Explorer
Mozilla Firefox
Google Chrome
Apple Safari
Google Chrome Frame for Internet Explorer

Created by Tomas Jezek 2017 - 2018