Space Flight Demo 1.02 out!

arras · Post by **arras** » Tue Oct 12, 2004 1:25 pm

Looks like summer is finaly over and I have more time for coding. And here is result:
Demo 1.02. You can download it on my site:
http://members.lycos.co.uk/arras1

If you will find time downloading (2.4Mb) it and testing I will be happy to hear your comments and would be interested hove many FPS you can get under diferent drivers/screen resolutions.
To me OpenGL looks to be much slower than DirectX.

Whats new:
Very simple setup screen added at the beginning of application.

Changed background texture and sky sphere UV map to get nicer background.
Some colorful nebulas and planets were removed temporarily.

Timer integrated in to the project.
Movement and rotation of objects is no more FPS dependant.
Objects should move and rotate at the same speed on any system now.

Space is no more empty, some star dust and debris are flying around
in a form of endless star dust field.

Simple autopilot following fixed navpoints added. Autopilot change direction
of your ship and switch between navpoints but have no control over speed so
player have to set it manually.

Two other ships are flying at low speed around. They are controlled by simple AI identical to autopilot in player controlled ship.
AI calculate angle between ship and target (navpoint) and turn ship in to
the target direction. This is done relative to ship current rotation.
When target is reached, AI switch to next navpoint.

What gona be done next:

As you noticed probably, flight model is simplified and I want to revrite it to look more like real one. As you might imagine, to fly in space is not the same as to flight in Earth atmosphere. I wan to get something similar to Elite.

Collision detection.

Better AI.

I'll plan to make new nicer ship model to replace old one.

jox · Post by **jox** » Tue Oct 12, 2004 2:31 pm

Nice!

Runs at ~80 fps in DX9, but only 21 at OpenGL. (1024x768)

I like the star dust. Nice effect.

If you press and hold the F1 key you get kind of like a third person camera effect.

bal · Post by **bal** » Tue Oct 12, 2004 4:46 pm

DX9: ~130FPS (1024*768)
OpenGL: ~34FPS (1024*768)

Nice

.

arras · Post by **arras** » Tue Oct 12, 2004 4:47 pm

thanks jox, glad that you like it. That star dust field took me quit a lot of time to get it work right. Its wraping and shifting around camera position so basicly you see always the same pieces fliing around you.

Bye the way you were helping me with defining 3D array a lot, whithout it, field would be of fixed size. Like this I can pass its size as a parameter in to the class when created.

arras · Post by **arras** » Tue Oct 12, 2004 4:52 pm

thanks bal ...I wonder what can make such a diference between DX and OGL???
Can it be in EMT_TRANSPARENT_ADD_COLOR?

Tech^salvager · Post by **Tech^salvager** » Tue Oct 12, 2004 9:21 pm

Real Nice arras
Good Job

jikbar · Post by **jikbar** » Tue Oct 12, 2004 11:54 pm

nice, love the engine effects

runs a bit slow on my system. DirectX8 13 fps, Opengl 3 fps, DirectX 9 crashes, both at 640 x 480 resolution. Pentium 3, 450 MHtz, windows98, ATI radeon 9200, latest Catalyst drivers, 128 MB ram

id like to see the code for stopping the ship, id really like to use it in my game

arras · Post by **arras** » Wed Oct 13, 2004 10:19 am

thanks,

jikbar>> hmm, thats quit slow for such a hardware configuration, realy strange. I will try to test it under Win98 on may computer at home, but operating system should not make such a diference.

here is code for stoping (and accelerating):

Code: Select all

//accelerate
   if(speed < destspeed)
   {
      speed += (acceleration*looptime);
      if(speed > destspeed)speed = destspeed; //in case speed passed destspeed
   }

//deccelerate
   if(speed > destspeed)
   {
      speed -= (acceleration*looptime);
      if(speed < destspeed)speed = destspeed;
   }
   if(speed != 0.0)
      move(speed*looptime); //move ship

Where speed is actual speed, destspeed is destination speed set by player (0 for stop), acceleration is maximal acceleration as name sugest and looptime is time pased between loops (ensures that speed is not FPS dependant)

Ronin · Post by **Ronin** » Wed Oct 13, 2004 1:02 pm

Very nice!!

FPS on Athlon 1600+, 512MB, Directx 8.1, 1024x768: 93fps

Shooting those AI ships would be fun.

arras · Post by **arras** » Thu Oct 14, 2004 8:26 am

that what they are there for.

Midnight · Post by **Midnight** » Thu Oct 21, 2004 7:29 am

very nice and you have the stardust thing I wanted I'll have to bug you about that one lol

It's shaping up to be a real space game and it seems your project is leaning in the same direction as mine with the atmospheric flight dynamics thingy.

Pentium 4 2400, 512mb ram, gforce mx 440 128mb, directx 9, 100FPS

1024x768

arras · Post by **arras** » Thu Oct 21, 2004 11:35 am

Midnight >> thanks, do you already have some demo of your project? I would be interesting to look at it

Irrlicht Engine

Space Flight Demo 1.02 out!

Space Flight Demo 1.02 out!

Now that I see it's here..