Home » Archimedes archive » Acorn User » AU 1997-06 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 1997-06 B.adf » Features |
| Filename: | 3D/!Read1st! |
| Read OK: | ✔ |
| File size: | 0EB0 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. "The new office level" 5. "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_Ray : This newer version of lasts months engine includes fixed point maths, screen banking, moving view points and coloured floor and ceiling. 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. Two 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 program may take a long time on slower machines for now. About 20 fps on a RPC 600. The look up tables will take a while to generate also on slower machines, but soon I'll load them in from file instead. In the office directory is a new graphic file with the shading (of sorts) system mentioned in this month's article, please see 4. for more details. This month I'll be making changes to the world files so letters A,B,C,D,E,F can be used to represent more tiles and also they might be used for objects. ************************************** 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 (note that this web site is soon to be updated so the address may be invalid). ************************************** 3. "Screen mode problems" ************************************** The !AUA_Ray 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 latest version screen banking is used, so make sure that enough screen memory is available. ************************************** 4. "The new office level" ************************************** The new officewall file differs to the old style walls file, in the way that it uses halve as many walls. If you look carefully though, you can see that each wall comes in two versions, one darker than the other. This is a sort of cheat shading technique (employed by Wolfenstein also!) which gives the illusion of shading when really there isn't. ************************************** 5. "Contacting me and other issues" ************************************** Many of you may be slightly put of by the mathmatical nature of the source code on the cover disc. There are many ways around this: 1) Ignore it, watch the progress of the engine and understand the bits you want to. 2) Just design your own levels and graphics 3) CONTACT me at AUThreeD@aol.com, or snail mail Acorn User and they can pass your request on.
00000000 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| * 00000020 2a 2a 2a 2a 2a 2a 0a 2a 2a 2a 2a 20 41 43 4f 52 |******.**** ACOR| 00000030 4e 20 55 53 45 52 20 33 2d 44 20 47 61 6d 65 73 |N USER 3-D Games| 00000040 20 41 72 74 69 63 6c 65 73 20 2a 2a 2a 0a 2a 2a | Articles ***.**| 00000050 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| * 00000070 2a 2a 2a 2a 0a 50 4c 45 41 53 45 20 52 45 41 44 |****.PLEASE READ| 00000080 20 54 48 49 53 20 46 49 4c 45 20 42 45 46 4f 52 | THIS FILE BEFOR| 00000090 45 20 55 53 49 4e 47 20 41 4e 59 0a 4f 46 20 54 |E USING ANY.OF T| 000000a0 48 45 20 53 4f 55 52 43 45 20 43 4f 44 45 20 4f |HE SOURCE CODE O| 000000b0 52 20 50 52 4f 47 52 41 4d 53 20 4f 4e 20 54 48 |R PROGRAMS ON TH| 000000c0 49 53 0a 44 49 53 4b 2e 0a 0a 43 6f 6e 74 65 6e |IS.DISK...Conten| 000000d0 74 73 3a 0a 0a 31 2e 20 22 57 68 61 74 27 73 20 |ts:..1. "What's | 000000e0 6f 6e 20 74 68 69 73 20 64 69 73 6b 3f 22 0a 32 |on this disk?".2| 000000f0 2e 20 22 4e 6f 74 65 20 74 6f 20 53 54 52 4f 4e |. "Note to STRON| 00000100 47 41 52 4d 20 75 73 65 72 73 22 0a 33 2e 20 22 |GARM users".3. "| 00000110 53 63 72 65 65 6e 20 6d 6f 64 65 20 70 72 6f 62 |Screen mode prob| 00000120 6c 65 6d 73 22 0a 34 2e 20 22 54 68 65 20 6e 65 |lems".4. "The ne| 00000130 77 20 6f 66 66 69 63 65 20 6c 65 76 65 6c 22 0a |w office level".| 00000140 35 2e 20 22 43 6f 6e 74 61 63 74 69 6e 67 20 6d |5. "Contacting m| 00000150 65 20 61 6e 64 20 4f 54 48 45 52 20 49 53 53 55 |e and OTHER ISSU| 00000160 45 53 22 0a 0a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |ES"..***********| 00000170 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| 00000180 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 0a 31 2e 20 22 |***********.1. "| 00000190 57 68 61 74 27 73 20 6f 6e 20 74 68 69 73 20 64 |What's on this d| 000001a0 69 73 6b 3f 22 0a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |isk?".**********| 000001b0 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| 000001c0 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 0a 0a 50 4c |************..PL| 000001d0 45 41 53 45 20 44 45 41 52 43 48 49 56 45 20 61 |EASE DEARCHIVE a| 000001e0 6c 6c 20 74 68 65 20 66 69 6c 65 73 20 62 65 66 |ll the files bef| 000001f0 6f 72 65 20 75 73 65 20 28 77 65 6c 6c 20 69 74 |ore use (well it| 00000200 73 20 62 65 73 74 20 74 6f 20 61 6e 79 77 61 79 |s best to anyway| 00000210 29 2e 0a 0a 59 6f 75 20 77 69 6c 6c 20 66 69 6e |)...You will fin| 00000220 64 20 74 68 65 20 61 70 70 6c 69 63 61 74 69 6f |d the applicatio| 00000230 6e 20 21 41 55 41 5f 52 61 79 20 3a 20 54 68 69 |n !AUA_Ray : Thi| 00000240 73 20 6e 65 77 65 72 20 76 65 72 73 69 6f 6e 20 |s newer version | 00000250 6f 66 20 6c 61 73 74 73 20 6d 6f 6e 74 68 73 20 |of lasts months | 00000260 65 6e 67 69 6e 65 20 69 6e 63 6c 75 64 65 73 20 |engine includes | 00000270 66 69 78 65 64 20 70 6f 69 6e 74 20 6d 61 74 68 |fixed point math| 00000280 73 2c 20 73 63 72 65 65 6e 20 62 61 6e 6b 69 6e |s, screen bankin| 00000290 67 2c 20 6d 6f 76 69 6e 67 20 76 69 65 77 20 70 |g, moving view p| 000002a0 6f 69 6e 74 73 20 61 6e 64 20 63 6f 6c 6f 75 72 |oints and colour| 000002b0 65 64 20 66 6c 6f 6f 72 20 61 6e 64 20 63 65 69 |ed floor and cei| 000002c0 6c 69 6e 67 2e 0a 0a 54 68 65 20 73 6f 75 72 63 |ling...The sourc| 000002d0 65 20 68 61 73 20 62 65 65 6e 20 63 6f 6d 70 69 |e has been compi| 000002e0 6c 65 64 20 77 69 74 68 20 45 61 73 79 20 43 2f |led with Easy C/| 000002f0 43 2b 2b 2c 20 62 75 74 20 69 74 20 68 61 73 20 |C++, but it has | 00000300 6e 6f 74 20 62 65 65 6e 20 63 6f 6d 70 69 6c 65 |not been compile| 00000310 64 20 77 69 74 68 20 41 63 6f 72 6e 20 43 20 6f |d with Acorn C o| 00000320 72 20 47 4e 55 20 43 2e 20 49 20 62 65 6c 69 65 |r GNU C. I belie| 00000330 76 65 20 74 68 61 74 20 69 74 20 6d 61 79 20 63 |ve that it may c| 00000340 6f 6d 70 69 6c 65 2c 20 62 75 74 20 77 69 74 68 |ompile, but with| 00000350 20 77 61 72 6e 69 6e 67 73 2e 20 54 77 6f 20 77 | warnings. Two w| 00000360 61 72 6e 69 6e 67 73 20 63 6f 6d 65 20 75 70 20 |arnings come up | 00000370 77 69 74 68 20 45 61 73 79 20 43 2e 20 54 68 65 |with Easy C. The| 00000380 73 65 20 72 65 6c 61 74 65 20 74 6f 20 73 74 6f |se relate to sto| 00000390 72 61 67 65 20 6f 66 20 63 68 61 72 20 2a 20 70 |rage of char * p| 000003a0 6f 69 6e 74 65 72 73 20 69 6e 20 61 6e 20 69 6e |ointers in an in| 000003b0 74 5b 5d 20 61 72 72 61 79 2e 20 54 68 69 73 20 |t[] array. This | 000003c0 77 69 6c 6c 20 62 65 20 72 65 6d 65 64 69 65 73 |will be remedies| 000003d0 20 69 6e 20 66 75 74 75 72 65 20 76 65 72 73 69 | in future versi| 000003e0 6f 6e 73 20 6f 66 20 74 68 65 20 65 6e 67 69 6e |ons of the engin| 000003f0 65 2e 20 0a 0a 54 68 65 20 70 72 6f 67 72 61 6d |e. ..The program| 00000400 20 6d 61 79 20 74 61 6b 65 20 61 20 6c 6f 6e 67 | may take a long| 00000410 20 74 69 6d 65 20 6f 6e 20 73 6c 6f 77 65 72 20 | time on slower | 00000420 6d 61 63 68 69 6e 65 73 20 66 6f 72 20 6e 6f 77 |machines for now| 00000430 2e 20 41 62 6f 75 74 20 32 30 20 66 70 73 20 6f |. About 20 fps o| 00000440 6e 20 61 20 52 50 43 20 36 30 30 2e 20 54 68 65 |n a RPC 600. The| 00000450 20 6c 6f 6f 6b 20 75 70 20 74 61 62 6c 65 73 20 | look up tables | 00000460 77 69 6c 6c 20 74 61 6b 65 20 61 20 77 68 69 6c |will take a whil| 00000470 65 20 74 6f 20 67 65 6e 65 72 61 74 65 20 61 6c |e to generate al| 00000480 73 6f 20 6f 6e 20 73 6c 6f 77 65 72 20 6d 61 63 |so on slower mac| 00000490 68 69 6e 65 73 2c 20 62 75 74 20 73 6f 6f 6e 20 |hines, but soon | 000004a0 49 27 6c 6c 20 6c 6f 61 64 20 74 68 65 6d 20 69 |I'll load them i| 000004b0 6e 20 66 72 6f 6d 20 66 69 6c 65 20 69 6e 73 74 |n from file inst| 000004c0 65 61 64 2e 0a 0a 49 6e 20 74 68 65 20 6f 66 66 |ead...In the off| 000004d0 69 63 65 20 64 69 72 65 63 74 6f 72 79 20 69 73 |ice directory is| 000004e0 20 61 20 6e 65 77 20 67 72 61 70 68 69 63 20 66 | a new graphic f| 000004f0 69 6c 65 20 77 69 74 68 20 74 68 65 20 73 68 61 |ile with the sha| 00000500 64 69 6e 67 20 28 6f 66 20 73 6f 72 74 73 29 20 |ding (of sorts) | 00000510 73 79 73 74 65 6d 20 6d 65 6e 74 69 6f 6e 65 64 |system mentioned| 00000520 20 69 6e 20 74 68 69 73 20 6d 6f 6e 74 68 27 73 | in this month's| 00000530 20 61 72 74 69 63 6c 65 2c 20 70 6c 65 61 73 65 | article, please| 00000540 20 73 65 65 20 34 2e 20 66 6f 72 20 6d 6f 72 65 | see 4. for more| 00000550 20 64 65 74 61 69 6c 73 2e 0a 0a 54 68 69 73 20 | details...This | 00000560 6d 6f 6e 74 68 20 49 27 6c 6c 20 62 65 20 6d 61 |month I'll be ma| 00000570 6b 69 6e 67 20 63 68 61 6e 67 65 73 20 74 6f 20 |king changes to | 00000580 74 68 65 20 77 6f 72 6c 64 20 66 69 6c 65 73 20 |the world files | 00000590 73 6f 20 6c 65 74 74 65 72 73 20 41 2c 42 2c 43 |so letters A,B,C| 000005a0 2c 44 2c 45 2c 46 20 63 61 6e 20 62 65 20 75 73 |,D,E,F can be us| 000005b0 65 64 20 74 6f 20 72 65 70 72 65 73 65 6e 74 20 |ed to represent | 000005c0 6d 6f 72 65 20 74 69 6c 65 73 20 61 6e 64 20 61 |more tiles and a| 000005d0 6c 73 6f 20 74 68 65 79 20 6d 69 67 68 74 20 62 |lso they might b| 000005e0 65 20 75 73 65 64 20 66 6f 72 20 6f 62 6a 65 63 |e used for objec| 000005f0 74 73 2e 0a 0a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |ts...***********| 00000600 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| 00000610 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 0a 32 2e 20 22 |***********.2. "| 00000620 4e 6f 74 65 20 74 6f 20 53 54 52 4f 4e 47 41 52 |Note to STRONGAR| 00000630 4d 20 75 73 65 72 73 22 0a 2a 2a 2a 2a 2a 2a 2a |M users".*******| 00000640 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| 00000650 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 0a |***************.| 00000660 0a 53 74 72 6f 6e 67 41 52 4d 20 52 49 53 43 20 |.StrongARM RISC | 00000670 50 43 20 6f 77 6e 65 72 73 20 6d 61 79 20 28 6c |PC owners may (l| 00000680 69 6b 65 20 6d 79 73 65 6c 66 29 20 66 69 6e 64 |ike myself) find| 00000690 20 74 68 65 20 70 72 6f 67 72 61 6d 20 74 6f 20 | the program to | 000006a0 63 72 61 73 68 20 77 69 74 68 20 65 69 74 68 65 |crash with eithe| 000006b0 72 20 61 20 66 6c 6f 61 74 69 6e 67 20 70 6f 69 |r a floating poi| 000006c0 6e 74 20 65 72 72 6f 72 20 6f 72 20 73 6f 6d 65 |nt error or some| 000006d0 20 73 6f 72 74 20 6f 66 20 69 6e 73 74 72 75 63 | sort of instruc| 000006e0 74 69 6f 6e 20 61 62 6f 72 74 2e 20 54 68 69 73 |tion abort. This| 000006f0 20 28 74 68 61 6e 6b 20 67 6f 64 21 29 20 69 73 | (thank god!) is| 00000700 20 6e 6f 74 68 69 6e 67 20 74 6f 20 64 6f 20 77 | nothing to do w| 00000710 69 74 68 20 74 68 65 20 70 72 6f 67 72 61 6d 2c |ith the program,| 00000720 20 62 75 74 20 73 6f 6d 65 20 73 6f 72 74 20 6f | but some sort o| 00000730 66 20 69 72 72 65 67 75 6c 61 72 69 74 79 20 69 |f irregularity i| 00000740 6e 20 74 68 65 20 53 74 72 6f 6e 67 41 52 4d 20 |n the StrongARM | 00000750 61 72 63 68 69 74 65 63 74 75 72 65 20 77 68 69 |architecture whi| 00000760 63 68 20 69 73 6e 27 74 20 73 70 6f 74 74 65 64 |ch isn't spotted| 00000770 20 62 79 20 74 68 65 20 63 6f 6d 70 69 6c 65 72 | by the compiler| 00000780 2e 20 0a 41 20 70 61 74 63 68 20 69 73 20 61 76 |. .A patch is av| 00000790 61 69 6c 61 62 6c 65 20 66 72 6f 6d 20 41 2e 52 |ailable from A.R| 000007a0 2e 54 2c 20 69 74 20 63 61 6e 20 62 65 20 66 6f |.T, it can be fo| 000007b0 75 6e 64 20 6f 6e 20 6f 6e 65 20 6f 66 20 74 68 |und on one of th| 000007c0 65 20 43 6c 61 6e 20 41 63 6f 72 6e 20 6d 65 6d |e Clan Acorn mem| 000007d0 62 65 72 73 68 69 70 20 64 69 73 63 73 20 61 6e |bership discs an| 000007e0 64 20 6d 6f 73 74 20 6c 69 6b 65 6c 79 20 66 72 |d most likely fr| 000007f0 6f 6d 20 74 68 65 69 72 20 77 65 62 20 73 69 74 |om their web sit| 00000800 65 3a 0a 68 74 74 70 3a 2f 2f 77 77 77 2e 61 72 |e:.http://www.ar| 00000810 74 2e 61 63 6f 72 6e 2e 63 6f 2e 75 6b 20 28 6e |t.acorn.co.uk (n| 00000820 6f 74 65 20 74 68 61 74 20 74 68 69 73 20 77 65 |ote that this we| 00000830 62 20 73 69 74 65 20 69 73 20 73 6f 6f 6e 20 74 |b site is soon t| 00000840 6f 20 62 65 20 75 70 64 61 74 65 64 20 73 6f 20 |o be updated so | 00000850 74 68 65 20 61 64 64 72 65 73 73 20 6d 61 79 20 |the address may | 00000860 62 65 20 69 6e 76 61 6c 69 64 29 2e 0a 0a 2a 2a |be invalid)...**| 00000870 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| * 00000890 2a 2a 2a 2a 0a 33 2e 20 22 53 63 72 65 65 6e 20 |****.3. "Screen | 000008a0 6d 6f 64 65 20 70 72 6f 62 6c 65 6d 73 22 0a 2a |mode problems".*| 000008b0 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| * 000008d0 2a 2a 2a 2a 2a 0a 0a 54 68 65 20 21 41 55 41 5f |*****..The !AUA_| 000008e0 52 61 79 20 61 70 70 6c 69 63 61 74 69 6f 6e 20 |Ray application | 000008f0 75 73 65 73 20 6d 6f 64 65 20 31 33 20 74 6f 20 |uses mode 13 to | 00000900 67 65 6e 65 72 61 74 65 20 69 74 73 20 76 69 65 |generate its vie| 00000910 77 2e 20 4f 6e 20 52 49 53 43 20 50 43 20 6d 61 |w. On RISC PC ma| 00000920 63 68 69 6e 65 73 20 28 61 6e 64 20 73 6f 6d 65 |chines (and some| 00000930 20 6f 66 20 74 68 6f 73 65 20 77 69 74 68 20 52 | of those with R| 00000940 49 53 43 20 4f 53 20 33 20 6f 72 20 6c 61 74 65 |ISC OS 3 or late| 00000950 72 29 20 74 68 69 73 20 73 63 72 65 65 6e 20 6d |r) this screen m| 00000960 6f 64 65 20 69 73 20 22 6c 65 74 74 65 72 2d 62 |ode is "letter-b| 00000970 6f 78 65 64 22 2e 20 54 68 69 73 20 63 61 6e 20 |oxed". This can | 00000980 62 65 20 63 6f 72 72 65 63 74 65 64 20 62 79 20 |be corrected by | 00000990 63 68 61 6e 67 69 6e 67 20 74 68 65 20 6d 6f 64 |changing the mod| 000009a0 65 20 64 65 66 69 6e 69 74 69 6f 6e 20 66 69 6c |e definition fil| 000009b0 65 20 6f 6e 20 79 6f 75 72 20 63 6f 6d 70 75 74 |e on your comput| 000009c0 65 72 2e 20 54 68 65 20 63 68 61 6e 67 65 73 20 |er. The changes | 000009d0 6d 61 64 65 20 61 72 65 20 73 70 65 63 69 66 69 |made are specifi| 000009e0 63 20 74 6f 20 79 6f 75 72 20 6f 77 6e 20 6d 6f |c to your own mo| 000009f0 6e 69 74 6f 72 2c 20 73 6f 20 69 74 20 69 73 20 |nitor, so it is | 00000a00 62 65 73 74 20 74 6f 20 65 69 74 68 65 72 0a 31 |best to either.1| 00000a10 29 20 43 6f 6e 74 61 63 74 20 79 6f 75 72 20 64 |) Contact your d| 00000a20 65 61 6c 65 72 0a 32 29 20 43 6f 6e 74 61 63 74 |ealer.2) Contact| 00000a30 20 73 6f 6d 65 6f 6e 65 20 77 68 6f 20 6b 6e 6f | someone who kno| 00000a40 77 73 20 74 68 65 69 72 20 41 63 6f 72 6e 73 21 |ws their Acorns!| 00000a50 0a 33 29 20 43 6f 6e 74 61 63 74 20 6d 65 20 66 |.3) Contact me f| 00000a60 6f 72 20 61 64 76 69 63 65 2e 0a 4e 6f 74 65 20 |or advice..Note | 00000a70 74 68 61 74 20 74 68 65 20 65 6e 67 69 6e 65 20 |that the engine | 00000a80 77 69 6c 6c 20 73 74 69 6c 6c 20 57 4f 52 4b 2c |will still WORK,| 00000a90 20 61 6c 62 65 69 74 20 61 20 6c 69 74 74 6c 65 | albeit a little| 00000aa0 20 22 73 71 75 69 73 68 65 64 22 21 0a 0a 49 6e | "squished"!..In| 00000ab0 20 74 68 69 73 20 6c 61 74 65 73 74 20 76 65 72 | this latest ver| 00000ac0 73 69 6f 6e 20 73 63 72 65 65 6e 20 62 61 6e 6b |sion screen bank| 00000ad0 69 6e 67 20 69 73 20 75 73 65 64 2c 20 73 6f 20 |ing is used, so | 00000ae0 6d 61 6b 65 20 73 75 72 65 20 74 68 61 74 20 65 |make sure that e| 00000af0 6e 6f 75 67 68 20 73 63 72 65 65 6e 20 6d 65 6d |nough screen mem| 00000b00 6f 72 79 20 69 73 20 61 76 61 69 6c 61 62 6c 65 |ory is available| 00000b10 2e 0a 0a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |...*************| 00000b20 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| 00000b30 2a 2a 2a 2a 2a 2a 2a 2a 2a 0a 34 2e 20 22 54 68 |*********.4. "Th| 00000b40 65 20 6e 65 77 20 6f 66 66 69 63 65 20 6c 65 76 |e new office lev| 00000b50 65 6c 22 0a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |el".************| 00000b60 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| 00000b70 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 0a 0a 54 68 65 20 |**********..The | 00000b80 6e 65 77 20 6f 66 66 69 63 65 77 61 6c 6c 20 66 |new officewall f| 00000b90 69 6c 65 20 64 69 66 66 65 72 73 20 74 6f 20 74 |ile differs to t| 00000ba0 68 65 20 6f 6c 64 20 73 74 79 6c 65 20 77 61 6c |he old style wal| 00000bb0 6c 73 20 66 69 6c 65 2c 20 69 6e 20 74 68 65 20 |ls file, in the | 00000bc0 77 61 79 20 74 68 61 74 20 69 74 20 75 73 65 73 |way that it uses| 00000bd0 20 68 61 6c 76 65 20 61 73 20 6d 61 6e 79 20 77 | halve as many w| 00000be0 61 6c 6c 73 2e 20 49 66 20 79 6f 75 20 6c 6f 6f |alls. If you loo| 00000bf0 6b 20 63 61 72 65 66 75 6c 6c 79 20 74 68 6f 75 |k carefully thou| 00000c00 67 68 2c 20 79 6f 75 20 63 61 6e 20 73 65 65 20 |gh, you can see | 00000c10 74 68 61 74 20 65 61 63 68 20 77 61 6c 6c 20 63 |that each wall c| 00000c20 6f 6d 65 73 20 69 6e 20 74 77 6f 20 76 65 72 73 |omes in two vers| 00000c30 69 6f 6e 73 2c 20 6f 6e 65 20 64 61 72 6b 65 72 |ions, one darker| 00000c40 20 74 68 61 6e 20 74 68 65 20 6f 74 68 65 72 2e | than the other.| 00000c50 20 54 68 69 73 20 69 73 20 61 20 73 6f 72 74 20 | This is a sort | 00000c60 6f 66 20 63 68 65 61 74 20 73 68 61 64 69 6e 67 |of cheat shading| 00000c70 20 74 65 63 68 6e 69 71 75 65 20 28 65 6d 70 6c | technique (empl| 00000c80 6f 79 65 64 20 62 79 20 57 6f 6c 66 65 6e 73 74 |oyed by Wolfenst| 00000c90 65 69 6e 20 61 6c 73 6f 21 29 20 77 68 69 63 68 |ein also!) which| 00000ca0 20 67 69 76 65 73 20 74 68 65 20 69 6c 6c 75 73 | gives the illus| 00000cb0 69 6f 6e 20 6f 66 20 73 68 61 64 69 6e 67 20 77 |ion of shading w| 00000cc0 68 65 6e 20 72 65 61 6c 6c 79 20 74 68 65 72 65 |hen really there| 00000cd0 20 69 73 6e 27 74 2e 0a 0a 2a 2a 2a 2a 2a 2a 2a | isn't...*******| 00000ce0 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| 00000cf0 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 0a |***************.| 00000d00 35 2e 20 22 43 6f 6e 74 61 63 74 69 6e 67 20 6d |5. "Contacting m| 00000d10 65 20 61 6e 64 20 6f 74 68 65 72 20 69 73 73 75 |e and other issu| 00000d20 65 73 22 0a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |es".************| 00000d30 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************| 00000d40 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 0a 0a 4d 61 6e 79 |**********..Many| 00000d50 20 6f 66 20 79 6f 75 20 6d 61 79 20 62 65 20 73 | of you may be s| 00000d60 6c 69 67 68 74 6c 79 20 70 75 74 20 6f 66 20 62 |lightly put of b| 00000d70 79 20 74 68 65 20 6d 61 74 68 6d 61 74 69 63 61 |y the mathmatica| 00000d80 6c 20 6e 61 74 75 72 65 20 6f 66 20 74 68 65 20 |l nature of the | 00000d90 73 6f 75 72 63 65 20 63 6f 64 65 20 6f 6e 20 74 |source code on t| 00000da0 68 65 20 63 6f 76 65 72 20 64 69 73 63 2e 20 54 |he cover disc. T| 00000db0 68 65 72 65 20 61 72 65 20 6d 61 6e 79 20 77 61 |here are many wa| 00000dc0 79 73 20 61 72 6f 75 6e 64 20 74 68 69 73 3a 0a |ys around this:.| 00000dd0 0a 31 29 20 49 67 6e 6f 72 65 20 69 74 2c 20 77 |.1) Ignore it, w| 00000de0 61 74 63 68 20 74 68 65 20 70 72 6f 67 72 65 73 |atch the progres| 00000df0 73 20 6f 66 20 74 68 65 20 65 6e 67 69 6e 65 20 |s of the engine | 00000e00 61 6e 64 20 75 6e 64 65 72 73 74 61 6e 64 20 74 |and understand t| 00000e10 68 65 20 62 69 74 73 20 79 6f 75 20 77 61 6e 74 |he bits you want| 00000e20 20 74 6f 2e 0a 32 29 20 4a 75 73 74 20 64 65 73 | to..2) Just des| 00000e30 69 67 6e 20 79 6f 75 72 20 6f 77 6e 20 6c 65 76 |ign your own lev| 00000e40 65 6c 73 20 61 6e 64 20 67 72 61 70 68 69 63 73 |els and graphics| 00000e50 0a 33 29 20 43 4f 4e 54 41 43 54 20 6d 65 20 61 |.3) CONTACT me a| 00000e60 74 20 41 55 54 68 72 65 65 44 40 61 6f 6c 2e 63 |t AUThreeD@aol.c| 00000e70 6f 6d 2c 20 6f 72 20 73 6e 61 69 6c 20 6d 61 69 |om, or snail mai| 00000e80 6c 20 41 63 6f 72 6e 20 55 73 65 72 20 61 6e 64 |l Acorn User and| 00000e90 20 74 68 65 79 20 63 61 6e 20 70 61 73 73 20 79 | they can pass y| 00000ea0 6f 75 72 20 72 65 71 75 65 73 74 20 6f 6e 2e 0a |our request on..| 00000eb0
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