Turbo Basic - More Graphics

By Gordon Cameron


Issue 30

Nov/Dec 87

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One of the advantages of Turbo Basic is its speed. You can achieve great demos which would not be at all effective in Atari Basic. This one from Gordon Cameron uses colour cycling to achieve a fine animated effect and is a good example of how the structure of Turbo Basic can be very different from ordinary Atari Basic.

Take a look at how procedures are defined for the three main parts of the program and the use of unique Turbo commands such as DO, LOOP and REPEAT within the PROCedures. Another feature is the use of labels in certain lines. Check line 1550 which draws a border around the screen, for a good example of how a program can be more easily understood. What could be easier when drawing a border than saying go along, down, back and up? One thing that Gordon did not do was to renumber the program. One of the reasons for having labels and being able to GOTO a label is that a program can be renumbered without having to worry about whether variables have been used for line numbers.


So there's another example of Turbo programming. Can you do better? We'll pay you 20 for a good example of Turbo programming. It must use the features unique to Turbo and be well structured and it must fit on one page. Please also include a brief explanation of the program. Anything will do, but try and make it different!



Turbo Basic is a new Basic language for the Atari originally published in the German magazine Happy Computing who retain the copyright but have released the program to the public domain. It adds over 60 new commands to Atari Basic, runs three to five times as fast, is totally compatible with Atari Basic and comes with a compiler to compile any Atari Basic or Turbo Basic program to run at machine language speed. You should be able to get a copy from any source of Public Domain software such as your local user group or the PAGE 6 Accessory Shop.



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