Subject: Re: [stella] Gravity Ball v014 - Please help! From: R Mundschau <rmundsc@xxxxxxxxx> Date: Wed, 04 Jun 2003 01:00:08 -0500 |
Hi Dennis, thanks for the feedback. I will definitely move code out of the vertical sync as you suggested. Yes the "mountains" are supposed to be there. I am debating whether or not I want them in the final game: Bumpy walls versus straight walls. Thanks for the tip on changing lines 1201 and 1230. The funny thing is. I started them at 3. When I run the game in Stella for Mac, there is a large blank at the bottom of the Window. I increased the line counts until it dissappeared. Then, I was confused because it seemed to display on the computer, but it was too many lines by my counting. thanks again! Rob Mundschau > From: "Dennis Debro" <ddebro@xxxxxxxxxxxxx> > Reply-To: stella@xxxxxxxxxxx > Date: Tue, 3 Jun 2003 21:51:06 -0400 > To: <stella@xxxxxxxxxxx> > Subject: RE: [stella] Gravity Ball v014 - Please help! > > Hi Rob, >> Please find attached the source code and binary for the current > version of >> Gravity Ball. Its not much yet. There are no controls just a looping >> visual demo. I want to show this demo at the Midwest Classic this >> Saturday. I need some help getting it debugged. > > As pointed out already Z26 reports 260 scan lines for the title and 282 > for the game display. If you changed lines 1201 and 1230 to ldy #3 > you'll get 262 lines. > > The screen jumps a little when switching from the title and the game > screen too. > > You seem to be doing a lot during the vertical sync. This is a debate > that's been going on for sometime. It seems some consoles are more > sensitive than others to this behavior. I would recommend you moving > these computations out of the vertical sync and doing them during the > vertical blank. Some have been able to do computations during vertical > sync with no problems but other haven't. Since you don't know how the > machine running your demo will respond, it's probably best to move it > out. > > In the game display the top part of the screen moves down (sort of like > 2 reverse mountains). Is this behavior wanted? I've attached a screen > shot of what I'm talking about. > > I haven't played on my CC, sorry. I only had time to run it in the > emulator. > > Good luck on getting this done in time and I look forward to seeing the > finished game. > > Take care, > Dennis > > > ------------------------------------------------------------------------------ > ---------------- > Archives (includes files) at http://www.biglist.com/lists/stella/archives/ > Unsub & more at http://www.biglist.com/lists/stella/ ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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