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DarkBASIC Professional Discussion / Some Questions

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Sagan
21
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Joined: 2nd Oct 2002
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Posted: 12th Oct 2002 18:54
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1) 3DMATHS COMMANDS!!?? What can I do with this!?

2) GET MAXIMUM LIGHTS()=-1 in my computer! What this mean? No lights!?

3) What is the Registry? What a good use for it?

4) Is any way to do a Multi-Server Game? A main server will change data with the other servers to.

5) Is possible to 2 programs use the same Pointer to work in the same memory space? How to do this?

Thx for any replay in advance
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Milamber
21
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Joined: 27th Sep 2002
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Posted: 12th Oct 2002 19:35
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1)Noone but the DBPro team seems to know what these can be used for, so you're not alone.
2)A value of -1 is usually used for infinite.
3)The registry is a big configuration file used by Windows to keep track of where programs are installed, what system settings are, which drivers are used, what resolution your computer is displaying Windows at, what your background is, and probably a whole heap of other stuff. Don't mess with it until you know what you're doing, but games and apps tend to put their install paths into a certain part of the registry, so when the CD is inserted, the setup program can tell where it's installed if you've put it somewhere other than the default install location.
4)As far as I know, no.
5)No idea.

System Specs: AMD Athlon 1700+ XP, GA-7VRX motherboard, 128MB DDR RAM, GeForce2 MX400 64MB VRAM
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Rodro
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Posted: 13th Oct 2002 04:06
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Why would you want to do #5?

Hey!! You talking to me?
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The One Ring
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Joined: 15th Sep 2002
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Posted: 13th Oct 2002 06:31
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For #5, yes... Its called a File-Mapped Object. This is something that must be done in C/C++, or Delphi, or some other such language. For an example on using File-Mapped Objects, see the MSDN, http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/base/creating_a_file_mapping_object.asp.

Good luck!

AMD Athlon 900 256MB DDR
ATI Radeon All-In-Wonder 7500, ATI XPert 128
Sound Blaster Audigy Gamer
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swdave
21
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Joined: 6th Oct 2002
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Posted: 13th Oct 2002 15:07
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You can look over here for some info on 3dmath.
http://www.cfxweb.net/~baskuene/gravity.htm

Basically the vector point1 is defined as x,y,z then you can manipulate point1 instead of the individual x,y,z

As to exactly how to use them I dont know but i would assume they are used internally by the 3D engine and now are being exposed so the programmer has more control.

I also notice there are 4D commands that could be very interesting.

So if point1 3D is your spaceship xyz position relative to the earth and sun in our galaxy then point1 4d would would be the xyzw position relative to a neighbor galaxy.

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Zed
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Posted: 13th Oct 2002 18:24
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The 4th column/row is normaly used for scale.

This 3x3 matrix would leave an objects orientation unchanged
1,0,0
0,1,0
0,0,1

This 4x4 matrix would leave an objects orientation unchanged but scale it to twice its original size

1,0,0,0
0,1,0,0
0,0,1,0
0,0,0,2

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Milamber
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Posted: 13th Oct 2002 19:07
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So all those 3dmaths commands can be used to create manual free flight rotation?

System Specs: AMD Athlon 1700+ XP, GA-7VRX motherboard, 128MB DDR RAM, GeForce2 MX400 64MB VRAM
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Zed
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Posted: 13th Oct 2002 21:19
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I've not looked to close but yes they should. Although you would have to keep updating the mesh using 'make memblock from mesh' and then 'make mesh from memblock' after applying the rotations. I'm waiting for them to fix the free flight and camera/object orientation commands myself.

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Milamber
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Posted: 13th Oct 2002 22:12
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From the sounds of things, patch 2 does that. About a week until it comes, I've heard.

System Specs: AMD Athlon 1700+ XP, GA-7VRX motherboard, 128MB DDR RAM, GeForce2 MX400 64MB VRAM
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