Turbo Basic - A Graphics Demo

Program by Les Ellingham

 

Issue 29

Sep/Oct 87

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Turbo Basic has recently become very popular and we have received so many requests for more information about the various commands available and offers of programs written in Turbo Basic that from this issue we start a regular page devoted to Turbo Basic. The future of the column depends on you. We need short programs written in Turbo Basic to demonstrate some of the features of this amazing language together with an explanation of what the program does and how it is programmed. Anything will be considered provided it uses the commands unique to Turbo Basic and the only limitation is size — the program and article must not be more than one page in total. Let's hear from you.

To get the ball rolling from this issue, here is a short little graphics program very quickly thrown together to demonstrate how programs can be written in Turbo Basic easily and quickly. It is certainly not a great example of programming — you could do better — but it does show smile of the features not available in ordinary Atari Basic. Study the listing carefully and you will begin to understand how programs can be structured in Turbo Basic.

The program simply draws circles in Graphics 8 to allow you to design patterns on screen. The joystick will move the cursor around and pressing the fire button will plot a circle of the size currently chosen. Just press START to choose another size and then press any key, the size is chosen quite arbitrarily from the keyboard.

It's not a brilliant program but was dead easy to write and it's fun. Let's see what you can do. We'll pay you £20 for any programs that are published. Remember they must have brief supporting documentation and must fit on one page.

WHAT IS TURBO BASIC?

Turbo Basic is a new Basic language for the Atari originally published in a German magazine and now released to the public domain. It adds over 60 new commands to Atari Basic, runs three to five times as fast, is totally compatible with all your existing programs 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 a friend or even from the Page 6 Accessory Shop.

AtariLister - requires Java

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