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Test my iso engine?

Toom · 2000-02-08T06:08:01

Howdy, For Christmas I got Roller Coaster Tycoon and I became very obsessed with learning how the isometric engine worked (since then my obsession has spread to many other games as well). So about a week ago I started writing my own iso engine with the goal of reproducing the kinds of things I see in RCT and others (height maps, multiple views in floating windows, 90 degree camera rotation, etc). It''s still got a long way to go, but I was wondering if some of the experts here would download it and run the demo and provide me with some feedback. In particular I''m interested in how fast it runs on various systems. The demo provides two simultaneous views of the map. The first view is full screen and you can scroll around using the mouse (move the mouse against the screen edges). The second view is smaller and floats on top of the other one. You can scroll it with the arrow keys. Press ESC to exit. The FPS is displayed in the top left corner. On my PII/266 I get a consistant 83 FPS. That''s what I get with no blitting at all, and that''s what I get with an 800x600 screen full of tiles and objects. Go figure. On my P166 with a REALLY crappy Trident card I get 30-35 FPS. I''m using DirectX 7a and Windows 98. This is my first ever attempt at writing a directx program. In fact it''s my first ever attempt at writing any sort of Windows software at all; I''m a UNIX command line type of guy ;-) I have no idea if it''ll work with older DirectX versions or 95 or NT. You can download the demo from here: http://www.islandnet.com/~toom/iso.zip It contains one EXE and 7 small bitmaps. The bitmaps were "borrowed" from RCT and of course I have no intention of using them "for real". They will be replaced with my own artwork ASAP. Thanks in advance for taking a look... //TOOM

General and Gameplay Programming Programming

Started by Toom January 22, 2000 04:49 PM

81 comments, last by Toom 24 years, 7 months ago

Staffan

122

January 26, 2000 12:16 PM

Machaira - read the previous posts. its probably related to the monitor refresh rates.

Ranok

122

January 26, 2000 01:18 PM

I get a constant 84 fps on my pIII 450 with 128 MB and a TNT2 with 32 MB

---Ranok---

Anonymous

January 26, 2000 11:50 PM

Nice stuff, I''m at 72-73fps while scrolling both the big picture and the blow up simultaneously. My system:
PII 400
384MB RAM
Viper 770 (TNT2 Ultra, 32MB)
Viewsonic PS790
Monitor''s refresh rate is set to ''Optimal''

As a newbie to game development, it would be real cool to check out the source to this since it''s still small and isn''t an overwhelming bit of code to take in, please consider it.

Anonymous

January 27, 2000 12:49 AM

It is about 57-59 on my...
PII 350, TNT 16MB, 64MB...

I am working on my engine similar to yours, but I
can only get about 35-37.
If the source is available,
please send it to coco001@mail.ht.net.tw

BASSOFeeSH

122

January 27, 2000 01:22 AM

Me thinks you are coorect about the refresh rates...I looked up my refresh rate and it matched my fps.

BASSOFeeSH
><>

-- What would Sweetness do?

Machaira

1,035

January 27, 2000 08:35 AM

It didn''t seem to matter what the refresh rate was - 60, 70, 75, 85Hz and Optimal all gave me 74-75 fps on my PIII500 TNT2, 128MB RAM here at work.

Hmmm.

Breakaway Games

Former Microsoft XNA and Xbox MVP | Check out my blog for random ramblings on game development

iTCHY

122

January 27, 2000 08:48 AM

Yes I''ve figured out that the 156fps was due to the refresh rate settings of my monitor. Apparently my TNT2 drivers were a bit stuffed. A clean reinstall fixed it and I now get a more sane 75fps!

Xipe

140

January 28, 2000 02:42 PM

I maxxed out on my refreshrate since VSYNC is on, 75 fps.
PII-450 128 Mb RAM, 16 Mb TNT card

--There is only one basic human right and that is the right to do as you damn well please, and with that right comes the only human duty; the duty to take the consequences.-- P.J. O'Rourke