Home » Archimedes archive » Acorn User » AU 1997-08 B.adf » Features » 3D/!Read1st!

3D/!Read1st!

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Archimedes archive » Acorn User » AU 1997-08 B.adf » Features
Filename: 3D/!Read1st!
Read OK:
File size: 107A bytes
Load address: 0000
Exec address: 0000
File contents
**************************************
**** ACORN USER 3-D Games Articles ***
**************************************
PLEASE READ THIS FILE BEFORE USING ANY
OF THE SOURCE CODE OR PROGRAMS ON THIS
DISK. 

Contents:

1. "What's on this disk?"
2. "Note to STRONGARM users"
3. "Screen mode problems"
4. "NEW NEW GRAPHICS"
5. "BUT I ONLY FIND OBJECTS IN THE LOOS!"???
6. "Contacting me and OTHER ISSUES"

**************************************
1. "What's on this disk?"
**************************************

PLEASE DEARCHIVE all the files before use (well its best to anyway).

You will find the application !AUA_Attack: This new version of our engine is becoming more like the finished one, featuring:

1) Transparent walls
2) Doors
3) Variables Screen Sizes
4) Fixed Point Maths
5) Parameters passed to engine
6) Objects
7) Demo Modes

The source has been compiled with Easy C/C++, but it has not been compiled with Acorn C or GNU C. I believe that it may compile, but with warnings. A few warnings come up with Easy C. These relate to storage of char * pointers in an int[] array. This will be remedies in future versions of the engine. 

The look up tables will take a while to generate also on slower machines, but soon I'll load them in from file instead.
PLEASE READ THE COMMENTS INSIDE THE RUN FILE FOR MORE INFORMATION ON ALTERING THE PARAMTERS PASSED TO THE ENGINE.

The engine uses a brand new world file and set of graphics, each which comply with the shading (of sorts) system we established in article three. There is also one door and one windows. 

Letters  A,B,C,D,E,F,G,H,I can be used to represent more tiles and also they might be used for objects next month.


**************************************
2. "Note to STRONGARM users"
**************************************

StrongARM RISC PC owners may (like myself) find the program to crash with either a floating point error or some sort of instruction abort. This (thank god!) is nothing to do with the program, but some sort of irregularity in the StrongARM architecture which isn't spotted by the compiler. 
A patch is available from A.R.T, it can be found on one of the Clan Acorn membership discs and most likely from their web site:
http://www.art.acorn.co.uk/www.acorn.com 

**************************************
3. "Screen mode problems"
**************************************

The !AUA_Attack application uses mode 13 to generate its view. On RISC PC machines (and some of those with RISC OS 3 or later) this screen mode is "letter-boxed". This can be corrected by changing the mode definition file on your computer. The changes made are specific to your own monitor, so it is best to either
1) Contact your dealer
2) Contact someone who knows their Acorns!
3) Contact me for advice.
Note that the engine will still WORK, albeit a little "squished"!

In this version screen banking is used, so make sure that enough screen memory is available.

**************************************
4. "New graphics and things"
**************************************

The new graphics inside the !AUA_Attack application feature a various number of tiles differing in their style and pupose, such as a urinal, trees, bookshelf. The object graphics are too varied to list, have a look when you run it!

**************************************
5. "BUT I ONLY FIND OBJECTS IN THE LOOS"
**************************************

This is because I haven't put any more objects in the objworld file. You have to be careful to watch the walls when you are doing this, it is useful to have both the world and objworld file up when doing this, or else you will get objects in walls. The objects in the code are guaranteed (!) not to be in walls, but like I said it takes a long time to make sure all objects are suitably placed, so I have left the reader to do so.

**************************************
6. "Contacting me and other issues"
**************************************

THIS MONTH read the source code (and comments) for the many (albeit small) changes to the code, and also read the comments inside the applications !run file for details of passing parameters to the engine, and of course the objects!!!


Email: AUThreeD@AOL.COM
Snail: See address in article
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00000070  2a 2a 2a 2a 0a 50 4c 45  41 53 45 20 52 45 41 44  |****.PLEASE READ|
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00000620  20 20 41 2c 42 2c 43 2c  44 2c 45 2c 46 2c 47 2c  |  A,B,C,D,E,F,G,|
00000630  48 2c 49 20 63 61 6e 20  62 65 20 75 73 65 64 20  |H,I can be used |
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00000840  63 61 6e 20 62 65 20 66  6f 75 6e 64 20 6f 6e 20  |can be found on |
00000850  6f 6e 65 20 6f 66 20 74  68 65 20 43 6c 61 6e 20  |one of the Clan |
00000860  41 63 6f 72 6e 20 6d 65  6d 62 65 72 73 68 69 70  |Acorn membership|
00000870  20 64 69 73 63 73 20 61  6e 64 20 6d 6f 73 74 20  | discs and most |
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000008d0  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
000008e0  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 0a 33 2e  |*************.3.|
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00000900  6f 62 6c 65 6d 73 22 0a  2a 2a 2a 2a 2a 2a 2a 2a  |oblems".********|
00000910  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
00000920  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 0a 0a  |**************..|
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00000aa0  68 65 69 72 20 41 63 6f  72 6e 73 21 0a 33 29 20  |heir Acorns!.3) |
00000ab0  43 6f 6e 74 61 63 74 20  6d 65 20 66 6f 72 20 61  |Contact me for a|
00000ac0  64 76 69 63 65 2e 0a 4e  6f 74 65 20 74 68 61 74  |dvice..Note that|
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00000b20  20 62 61 6e 6b 69 6e 67  20 69 73 20 75 73 65 64  | banking is used|
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00000b40  68 61 74 20 65 6e 6f 75  67 68 20 73 63 72 65 65  |hat enough scree|
00000b50  6e 20 6d 65 6d 6f 72 79  20 69 73 20 61 76 61 69  |n memory is avai|
00000b60  6c 61 62 6c 65 2e 0a 0a  2a 2a 2a 2a 2a 2a 2a 2a  |lable...********|
00000b70  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
00000b80  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 0a 34  |**************.4|
00000b90  2e 20 22 4e 65 77 20 67  72 61 70 68 69 63 73 20  |. "New graphics |
00000ba0  61 6e 64 20 74 68 69 6e  67 73 22 0a 2a 2a 2a 2a  |and things".****|
00000bb0  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00000bd0  2a 2a 0a 0a 54 68 65 20  6e 65 77 20 67 72 61 70  |**..The new grap|
00000be0  68 69 63 73 20 69 6e 73  69 64 65 20 74 68 65 20  |hics inside the |
00000bf0  21 41 55 41 5f 41 74 74  61 63 6b 20 61 70 70 6c  |!AUA_Attack appl|
00000c00  69 63 61 74 69 6f 6e 20  66 65 61 74 75 72 65 20  |ication feature |
00000c10  61 20 76 61 72 69 6f 75  73 20 6e 75 6d 62 65 72  |a various number|
00000c20  20 6f 66 20 74 69 6c 65  73 20 64 69 66 66 65 72  | of tiles differ|
00000c30  69 6e 67 20 69 6e 20 74  68 65 69 72 20 73 74 79  |ing in their sty|
00000c40  6c 65 20 61 6e 64 20 70  75 70 6f 73 65 2c 20 73  |le and pupose, s|
00000c50  75 63 68 20 61 73 20 61  20 75 72 69 6e 61 6c 2c  |uch as a urinal,|
00000c60  20 74 72 65 65 73 2c 20  62 6f 6f 6b 73 68 65 6c  | trees, bookshel|
00000c70  66 2e 20 54 68 65 20 6f  62 6a 65 63 74 20 67 72  |f. The object gr|
00000c80  61 70 68 69 63 73 20 61  72 65 20 74 6f 6f 20 76  |aphics are too v|
00000c90  61 72 69 65 64 20 74 6f  20 6c 69 73 74 2c 20 68  |aried to list, h|
00000ca0  61 76 65 20 61 20 6c 6f  6f 6b 20 77 68 65 6e 20  |ave a look when |
00000cb0  79 6f 75 20 72 75 6e 20  69 74 21 0a 0a 2a 2a 2a  |you run it!..***|
00000cc0  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00000ce0  2a 2a 2a 0a 35 2e 20 22  42 55 54 20 49 20 4f 4e  |***.5. "BUT I ON|
00000cf0  4c 59 20 46 49 4e 44 20  4f 42 4a 45 43 54 53 20  |LY FIND OBJECTS |
00000d00  49 4e 20 54 48 45 20 4c  4f 4f 53 22 0a 2a 2a 2a  |IN THE LOOS".***|
00000d10  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00000d30  2a 2a 2a 0a 0a 54 68 69  73 20 69 73 20 62 65 63  |***..This is bec|
00000d40  61 75 73 65 20 49 20 68  61 76 65 6e 27 74 20 70  |ause I haven't p|
00000d50  75 74 20 61 6e 79 20 6d  6f 72 65 20 6f 62 6a 65  |ut any more obje|
00000d60  63 74 73 20 69 6e 20 74  68 65 20 6f 62 6a 77 6f  |cts in the objwo|
00000d70  72 6c 64 20 66 69 6c 65  2e 20 59 6f 75 20 68 61  |rld file. You ha|
00000d80  76 65 20 74 6f 20 62 65  20 63 61 72 65 66 75 6c  |ve to be careful|
00000d90  20 74 6f 20 77 61 74 63  68 20 74 68 65 20 77 61  | to watch the wa|
00000da0  6c 6c 73 20 77 68 65 6e  20 79 6f 75 20 61 72 65  |lls when you are|
00000db0  20 64 6f 69 6e 67 20 74  68 69 73 2c 20 69 74 20  | doing this, it |
00000dc0  69 73 20 75 73 65 66 75  6c 20 74 6f 20 68 61 76  |is useful to hav|
00000dd0  65 20 62 6f 74 68 20 74  68 65 20 77 6f 72 6c 64  |e both the world|
00000de0  20 61 6e 64 20 6f 62 6a  77 6f 72 6c 64 20 66 69  | and objworld fi|
00000df0  6c 65 20 75 70 20 77 68  65 6e 20 64 6f 69 6e 67  |le up when doing|
00000e00  20 74 68 69 73 2c 20 6f  72 20 65 6c 73 65 20 79  | this, or else y|
00000e10  6f 75 20 77 69 6c 6c 20  67 65 74 20 6f 62 6a 65  |ou will get obje|
00000e20  63 74 73 20 69 6e 20 77  61 6c 6c 73 2e 20 54 68  |cts in walls. Th|
00000e30  65 20 6f 62 6a 65 63 74  73 20 69 6e 20 74 68 65  |e objects in the|
00000e40  20 63 6f 64 65 20 61 72  65 20 67 75 61 72 61 6e  | code are guaran|
00000e50  74 65 65 64 20 28 21 29  20 6e 6f 74 20 74 6f 20  |teed (!) not to |
00000e60  62 65 20 69 6e 20 77 61  6c 6c 73 2c 20 62 75 74  |be in walls, but|
00000e70  20 6c 69 6b 65 20 49 20  73 61 69 64 20 69 74 20  | like I said it |
00000e80  74 61 6b 65 73 20 61 20  6c 6f 6e 67 20 74 69 6d  |takes a long tim|
00000e90  65 20 74 6f 20 6d 61 6b  65 20 73 75 72 65 20 61  |e to make sure a|
00000ea0  6c 6c 20 6f 62 6a 65 63  74 73 20 61 72 65 20 73  |ll objects are s|
00000eb0  75 69 74 61 62 6c 79 20  70 6c 61 63 65 64 2c 20  |uitably placed, |
00000ec0  73 6f 20 49 20 68 61 76  65 20 6c 65 66 74 20 74  |so I have left t|
00000ed0  68 65 20 72 65 61 64 65  72 20 74 6f 20 64 6f 20  |he reader to do |
00000ee0  73 6f 2e 0a 0a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |so...***********|
00000ef0  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
00000f00  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 0a 36 2e 20 22  |***********.6. "|
00000f10  43 6f 6e 74 61 63 74 69  6e 67 20 6d 65 20 61 6e  |Contacting me an|
00000f20  64 20 6f 74 68 65 72 20  69 73 73 75 65 73 22 0a  |d other issues".|
00000f30  2a 2a 2a 2a 2a 2a 2a 2a  2a 2a 2a 2a 2a 2a 2a 2a  |****************|
*
00000f50  2a 2a 2a 2a 2a 2a 0a 0a  54 48 49 53 20 4d 4f 4e  |******..THIS MON|
00000f60  54 48 20 72 65 61 64 20  74 68 65 20 73 6f 75 72  |TH read the sour|
00000f70  63 65 20 63 6f 64 65 20  28 61 6e 64 20 63 6f 6d  |ce code (and com|
00000f80  6d 65 6e 74 73 29 20 66  6f 72 20 74 68 65 20 6d  |ments) for the m|
00000f90  61 6e 79 20 28 61 6c 62  65 69 74 20 73 6d 61 6c  |any (albeit smal|
00000fa0  6c 29 20 63 68 61 6e 67  65 73 20 74 6f 20 74 68  |l) changes to th|
00000fb0  65 20 63 6f 64 65 2c 20  61 6e 64 20 61 6c 73 6f  |e code, and also|
00000fc0  20 72 65 61 64 20 74 68  65 20 63 6f 6d 6d 65 6e  | read the commen|
00000fd0  74 73 20 69 6e 73 69 64  65 20 74 68 65 20 61 70  |ts inside the ap|
00000fe0  70 6c 69 63 61 74 69 6f  6e 73 20 21 72 75 6e 20  |plications !run |
00000ff0  66 69 6c 65 20 66 6f 72  20 64 65 74 61 69 6c 73  |file for details|
00001000  20 6f 66 20 70 61 73 73  69 6e 67 20 70 61 72 61  | of passing para|
00001010  6d 65 74 65 72 73 20 74  6f 20 74 68 65 20 65 6e  |meters to the en|
00001020  67 69 6e 65 2c 20 61 6e  64 20 6f 66 20 63 6f 75  |gine, and of cou|
00001030  72 73 65 20 74 68 65 20  6f 62 6a 65 63 74 73 21  |rse the objects!|
00001040  21 21 0a 0a 0a 45 6d 61  69 6c 3a 20 41 55 54 68  |!!...Email: AUTh|
00001050  72 65 65 44 40 41 4f 4c  2e 43 4f 4d 0a 53 6e 61  |reeD@AOL.COM.Sna|
00001060  69 6c 3a 20 53 65 65 20  61 64 64 72 65 73 73 20  |il: See address |
00001070  69 6e 20 61 72 74 69 63  6c 65                    |in article|
0000107a