Search found 141 matches

by gasega68k
Tue Jan 06, 2015 5:33 am
Forum: Demos
Topic: wolfenstein demo for sega genesis
Replies: 364
Views: 473447

Hello, Happy new year to all. :) Going back on topic, is it me or is the fire button less responsive in the latest release? I've found myself a lot of times losing to a single dumb enemy right in front of me just because the button didn't respond. I had noticed this before, I thought it was due to t...
by gasega68k
Mon Dec 22, 2014 5:03 am
Forum: Demos
Topic: Mode 7 demo for Genesis/MD
Replies: 63
Views: 219020

I've been optimizing a bit this demo, now runs between 27 to 28 fps (instead of 26-27), but there are several things that can be optimized, and I think that could exceed 30 fps. This engine is ideal for a game like Mario Kart, which is what I would like to try to do, perhaps one with characters from...
by gasega68k
Fri Dec 19, 2014 4:05 am
Forum: Demos
Topic: Mode 7 demo for Genesis/MD
Replies: 63
Views: 219020

Hi, I made a video and also a new version with the "scroll" working well (towards any direction), but still has some minor errors.
http://www.youtube.com/watch?v=Yt_He0Ep02o

Download new version:
http://www.mediafire.com/download/7iyeq ... e7_wsc.rar
by gasega68k
Fri Dec 19, 2014 2:00 am
Forum: Demos
Topic: Mode 7 demo for Genesis/MD
Replies: 63
Views: 219020

So it works with MED, great ! :D , then I have to modify the first post, thanks Chilly Willy. It looks really nice and smooth ! It would be perfect to reach 30 FPS to synch on screen refresh then it would looks even smoother ! That is probably possible with some optimizations (and the help of some t...
by gasega68k
Wed Dec 17, 2014 9:29 pm
Forum: Demos
Topic: Mode 7 demo for Genesis/MD
Replies: 63
Views: 219020

Mode 7 demo for Genesis/MD

Hi, this is a demo of rotation and scaling better known by the name of "Mode 7". :) I'm using the external Ram 64Kb in Word mode, to use as a "virtual map" of 256 x 256 8bit (256 colors "simulated" as in Wolf3D), the idea is that when we move on the map, it will uploading new "tiles" (a size of 8 x ...
by gasega68k
Tue Dec 16, 2014 2:33 am
Forum: Demos
Topic: wolfenstein demo for sega genesis
Replies: 364
Views: 473447

Actually i searched a solution for that : use DMA and require only a single plan with a single buffer, all these and still allow a fast software filling code (12 cycles per move.l instruction) but i did not found any solution :-/ I can give you a hint: you need two address registers. :) About the m...
by gasega68k
Sat Dec 13, 2014 4:45 am
Forum: Demos
Topic: wolfenstein demo for sega genesis
Replies: 364
Views: 473447

Stef: The method I'm thinking of doing to use DMA and a single plan, is not so different from the method I did with two, I will continue using the Vram AutoInc at 32, but I must modify the code for filling polygons, and should be as fast as the current method (at least I hope) using "move.l dx, (ax)...
by gasega68k
Thu Dec 11, 2014 9:08 pm
Forum: Demos
Topic: wolfenstein demo for sega genesis
Replies: 364
Views: 473447

Another small update of Wolf3D. :) In this version I have corrected some errors, one of which is in the animation of some enemies, the most notable was the boss of the 1st episode, when he prepared to shoot, had to raise the gun and should stay that way for a moment and then shoot, but instead he fi...
by gasega68k
Tue Dec 02, 2014 4:32 am
Forum: Demos
Topic: Iron Maiden chiptune musicdisc + 26 kHz mod/ahx player
Replies: 32
Views: 22212

This sounds amazing! :)

How accurate is the emulator Regen in this demo compared to the real Genesis? (I tried several emulators and Regen is the one that sounds good).
by gasega68k
Tue Nov 25, 2014 4:50 am
Forum: Collaboration
Topic: Megadrive: Custom-Cartridge including extra capabilities
Replies: 35
Views: 37427

Using the "Direct Color Dma" and with the help of a "ARM" chip, the best kind of games would be the style of Doom or Duke Nukem 3D, or even fully 3D games based on polygons with textures (half-life? ). :) I do not know how this ARM will be compared for example with the GBA, using an ARM7 with 16mhz ...
by gasega68k
Mon Nov 24, 2014 10:02 pm
Forum: Collaboration
Topic: Megadrive: Custom-Cartridge including extra capabilities
Replies: 35
Views: 37427

With a resolution of 224 x 192 in H32 mode (like Starfox SNES) or 288 x 192 in H40, you can transfer the buffer in 2 frames, ie we would have a maximum of 30fps. For the design of this cartridge is better to use Sram, and also are not very expensive: 128KB(64kx16) http://www.digikey.com/product-deta...
by gasega68k
Sat Nov 01, 2014 11:53 pm
Forum: Demos
Topic: wolfenstein demo for sega genesis
Replies: 364
Views: 473447

I made a video to test the performance of the engine of Wolf3D. :wink: In the first room there are 20 dogs, then in the next room there are 30 enemies (guards and SS) in the next room there are 40 enemies and finally in the next room, there are 50 enemies. The original game (PC version) there is a l...
by gasega68k
Thu Oct 23, 2014 9:37 pm
Forum: Demos
Topic: wolfenstein demo for sega genesis
Replies: 364
Views: 473447

Adding lightgun support to wolf3d would be a crazy easter egg :D About the only way that makes sense is to have the gun act like a mouse, turning from side to side while the pad handled strafing and forward/backward. That could be a way to do it. :) I fixed an error related to the mouse that had al...
by gasega68k
Thu Oct 23, 2014 1:53 am
Forum: Demos
Topic: wolfenstein demo for sega genesis
Replies: 364
Views: 473447

I think you're right, I'm not going to worry too much about this error, but I did a little modification, just in case. :) But I found a bug, when the game is saved and when you load the game again, the buttons on the mouse are changed, because I forgot to add that the configuration of mouse buttons ...
by gasega68k
Tue Oct 21, 2014 9:44 pm
Forum: Demos
Topic: wolfenstein demo for sega genesis
Replies: 364
Views: 473447

It's working now... I hate issues like this. It doesn't work until you are asked for specific details, then it works fine. :lol: So it seems that only sometimes fails, well that's very strange and harder to understand. :? When it didn't work, you could move the cursor (the gun), but pressing A did ...