Back to General and Gameplay Programming

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