190 replies to this topic

[PacManPlus]

Hi guys -

I was asked to make a manual for the last 4 games I did, so I took a stab at it. Please note that these may (and probably will) change.

Thanks,
Bob

Attached Files

•  Meteor Shower Manual.pdf   811.9K   89 downloads

[PacManPlus]

Update:

After talking with Dan Boris, I found an issue with Meteor Shower that caused it to not work with MESS. It is fixed, and included here.

Thanks,
Bob

Attached Files

•  MeteorSh.A78   16.13K   57 downloads
•  MeteorSh.bin   16K   30 downloads
•  MeteorSP.A78   16.13K   29 downloads
•  MeteorSP.bin   16K   23 downloads

[Propane13]

Hi Bob,

Is this kind of issue something that other 7800 programmers should be aware of when coding?

-John

[DanBoris]

Propane13, on Sat Feb 18, 2012 4:24 PM, said:

Hi Bob,

Is this kind of issue something that other 7800 programmers should be aware of when coding?

-John

The issue was that he was doing a LDA $04,X instead of a LDA #$04. The LDA $04,X was reading from location $04 which is the TIA collision register. It just happened that the value it got on the real hardware and on most emulators worked in this case, but MESS on the other hand was returning a value that didn't work. To be provide truely accurate emulation MESS should return the same value as the real hardware, but I am not sure what that should be.

Edited by DanBoris, Sat Feb 18, 2012 6:03 PM.

[PacManPlus]

Yes, sorry - I was gone for a while.
This worked on real hardware and ProSystem so I never caught it. This was the offending line:

LDA	#PLYSHOT,X

It should have been

LDA	#PLYSHOT

MESS was loading $FF into 'A' which is the only value that would have made the program fail (I check for $FF to see if the object is disabled)

Thanks,
Bob

Edited by PacManPlus, Sat Feb 18, 2012 6:44 PM.

[Trebor]

PacManPlus, on Sat Feb 18, 2012 4:21 PM, said:

Update:

After talking with Dan Boris, I found an issue with Meteor Shower that caused it to not work with MESS. It is fixed, and included here.

Thanks,
Bob

Thanks for the update...Plays perfectly now.

[ls650]

Great game! One comment: I have played it in emulation with Prosystem and I found the base shooter is a bright colour - as are the mountains in the background. Unlike the Intellivision original that inspired this, I find that when moving the base back and forth, it kind of blends in a bit with the background mountains, and in the heat of gameplay can get a bit lost in the background. Or is it just me..?

Edited by ls650, Sat Feb 18, 2012 10:52 PM.

[life_is_pleach]

Will be there a second run? Anytime? If there will be a second run i will take a copy in each color.

[HatNJ]

After getting Bob's last few games I missed this one
I do hope another run is made or made available in the AA Store

[Trebor]

ls650, on Sat Feb 18, 2012 10:49 PM, said:

Great game! One comment: I have played it in emulation with Prosystem and I found the base shooter is a bright colour - as are the mountains in the background. Unlike the Intellivision original that inspired this, I find that when moving the base back and forth, it kind of blends in a bit with the background mountains, and in the heat of gameplay can get a bit lost in the background. Or is it just me..?

I think it is either "just (you)" or perhaps the color palette being used with ProSystem. On the actual system I don't encounter any blending, and don't see it under MESS either. Here are some captures straight from version 0.145u6:

[atarinut76]

please add me too if you do a second run. I think I just missed the first one..

Matt

[bennybingo]

Please add me as well!

[Master Phruby]

Thanks for this game Bob! I've had a great time playing it.

[Simple M]

Looks great, cant wait til it comes out on cart form.

[ntavio]

Simple M, on Thu Apr 26, 2012 5:16 AM, said:

Looks great, cant wait til it comes out on cart form.

It already has. See post #70. You can PM Bob to see about buying one.

[toymailman]

Count me in if you make more.