abacus-AmigaBASIC_Inside_and_Out(1988).pdf

InsideandOut

icompleteguideto learning

andapplyingAmigaBASIC

Abacus!

A Data Becker Book

AmigaBASIC

Inside and Out

Hannes Rugheimer • Christian Spanik

A Data Becker book

Published by

Abacus

First Printing, January 1988

Printed in U.S.A.

DataBecker, GmbH

MerowingerstraBe 30

4000Deusseldorf,WestGermany

Abacus

5370 52ndStreet SE

GrandRapids, MI49508

This book is copyrighted. No part of this book may be reproduced, stored in a retrieval

system, ortransmittedin any formorby any means, electronic, mechanical, photocopying,

recording or otherwise without the prior written permission of Abacus Software or Data

Becker, GmbH.

Every effort has been made to ensure complete and accurate information concerning the

material presented in this book. However, Abacus Software can neither guarantee nor be

held legallyresponsible for any mistakes inprinting or faulty instructions contained in this

book. The authors always appreciatereceivingnoticeofanyerrors ormisprints.

Aegis Animator is a trademark of Aegis Development, Inc. Deluxe Music Construction

Set, DeluxeVideo and InstantMusic are trademarks orregistered trademarks ofElectronic

Arts. AmigaBASIC and MS-DOS are trademarks or registered trademarks of Microsoft

Corporation. Amiga 500, Amiga 1000, Amiga 2000 Amiga, Graphicraft, Musicraft,

Sidecar and Textcraft are trademarks or registered trademarks ofCommodore-Amiga Inc.

PC-BASIC is a registered trademark ofInternational Business Machines Corporation. Star

Wars is atrademarkofTwentieth Century-Fox, Inc.

ISBN 0-916439-87-9

Table of Contents

Introductions

About this book

Choose your introduction

Introduction 1

Introduction 2

...14

1 Making things move:

Object animation

1.1

The Amiga's tutor: the Extras diskette

1.2

Introducing...AmigaBASIC

1.3

Experimenting with AmigaBASIC

1.4

First program: only flying is better

1.5

Here and there: BASIC andLIST windows

1.6

BASIC commands, functions, and more

1.7

Entering textin yourvideo title program

1.8

Safety first: saving yourprograms

1.9

Aclean slate: erasing BASICprograms with NEW

Intermission 1 Clean upwith: programdrawers

1.10 Something's moving out there: bobs and sprites

1.11 A star is Born: the object editor

1.12 Role assignments: more aboutgraphicobjects

1.13 Loadingour STARbob: readinggraphicobjects

1.14 Tracking down your errors: the TRACE function

1.15 Moving on up to: the OBJECT commands

1.16 Colorcomes into thegame: colorcontrol

1.17 Thefruits ofourlabors: the displayprogram

2 All here in black and white:

Colors and resolution

2.1

Amiga teaser: A spectrum of color

2.2

Pixels, colors andmemory: Amigascreenresolutions

2.3

Motiongraphics: TheAmiga' screens

2.4

Creating yourown Amigawindows

103

2.5

Versatility: the first graphic commands

107

Intermission 2 Chaining your different programs together

113

2.6

Full circle: more graphic commands

116

iii

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