Star Evil and F-FF

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pubby
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Star Evil and F-FF

Post by pubby » Mon Jan 29, 2018 7:51 am

Gonna post these a few days early in hopes that bugs will be caught before I submit them. I haven't tested them on real hardware. NTSC only.

Star Evil

A simple remake of the A52 game. I tried to make it faster paced and less glitchy, while still keeping some the original charm.

D-Pad: Move
A/B: Shoot
Start: Start Game
Image Image

F-FF

A basic racing game. Hit select on the menu to get 2p split screen.

D-Pad: Steer
B: Accelerate
A: Boost
Start: Start Game
Select: Enable second player (on menu)

Image Image
Attachments
star_evil_v2.nes
(40.02 KiB) Downloaded 737 times
star_evil_v1.nes
(40.02 KiB) Downloaded 603 times
f-ff_v1.nes
(64.02 KiB) Downloaded 724 times
Last edited by pubby on Thu Feb 01, 2018 8:29 pm, edited 1 time in total.

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Kasumi
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Re: Star Evil and F-FF

Post by Kasumi » Mon Jan 29, 2018 8:12 am

Star Evil is interesting. I wonder how many people will miss it.
Edit: Beat it.

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FrankenGraphics
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Re: Star Evil and F-FF

Post by FrankenGraphics » Mon Jan 29, 2018 9:11 am

Star Evil looks promising. No bugs found at first glance.
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lidnariq
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Re: Star Evil and F-FF

Post by lidnariq » Mon Jan 29, 2018 1:54 pm

I feel like I'm missing a lot of somethings. I can't evade or destroy the first blue square in Star Evil, and the game I get in F-FF is a lot more impressive than the preview image implies

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FrankenGraphics
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Re: Star Evil and F-FF

Post by FrankenGraphics » Mon Jan 29, 2018 2:17 pm

Hint: the game has only begun when you think it is ...[]
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Punch
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Re: Star Evil and F-FF

Post by Punch » Mon Jan 29, 2018 2:33 pm

FFF - I like the scanline effects.
Star Evil - As buggy as the original.

Edit to remove discussion about the car's drag redution mechanism.
Last edited by Punch on Mon Jan 29, 2018 3:02 pm, edited 1 time in total.
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lidnariq
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Re: Star Evil and F-FF

Post by lidnariq » Mon Jan 29, 2018 2:37 pm

Star Evil feels a bit postmodern.

I did find a genuine crash in it, too, but I have no idea how to talk about that without spoilering things.

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Re: Star Evil and F-FF

Post by gauauu » Mon Jan 29, 2018 3:16 pm

FrankenGraphics wrote:Star Evil looks promising. No bugs found at first glance.
Yeah, my first thought was "how can you even tell if it's a bug?" ;-)

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Punch
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Re: Star Evil and F-FF

Post by Punch » Mon Jan 29, 2018 3:43 pm

Is the cheeseburger screen the real ending?
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pubby
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Re: Star Evil and F-FF

Post by pubby » Mon Jan 29, 2018 7:06 pm

Punch wrote:Is the cheeseburger screen the real ending?
Yeah. I was running out of space so that's it.

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dougeff
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Re: Star Evil and F-FF

Post by dougeff » Tue Jan 30, 2018 8:33 pm

I did manage to crash Star Evil. The program counter was around $4000.

Both games make me want to play them more. Good work.
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dougeff
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Re: Star Evil and F-FF

Post by dougeff » Tue Jan 30, 2018 9:16 pm

Jeez. Running either game in a debugger, with "break on bad opcode" is like looking into the abyss.
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lidnariq
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Re: Star Evil and F-FF

Post by lidnariq » Tue Jan 30, 2018 9:37 pm

Setting a breakpoint on execution in $0000-$7FFF shows it jumping to PC=$2007 ??

FCEUX's execution logger shows this:

Code: Select all

f1967   c58591625    i19216654    A:36 X:00 Y:44 S:FB P:nvUbdIzC     $8755:B1 12     LDA ($12),Y @ $0134 = #$07
f1967   c58591631    i19216655    A:07 X:00 Y:44 S:FB P:nvUbdIzC     $8757:85 36     STA $0036 = #$9D
f1967   c58591634    i19216656    A:07 X:00 Y:44 S:FB P:nvUbdIzC     $8759:C8        INY
f1967   c58591636    i19216657    A:07 X:00 Y:45 S:FB P:nvUbdIzC     $875A:B1 12     LDA ($12),Y @ $0135 = #$20
f1967   c58591642    i19216658    A:20 X:00 Y:45 S:FB P:nvUbdIzC     $875C:85 37     STA $0037 = #$8E
f1967   c58591645    i19216659    A:20 X:00 Y:45 S:FB P:nvUbdIzC     $875E:C8        INY
f1967   c58591647    i19216660    A:20 X:00 Y:46 S:FB P:nvUbdIzC     $875F:20 6B 87  JSR $876B
f1967   c58591653    i19216661    A:20 X:00 Y:46 S:F9 P:nvUbdIzC       $876B:A5 37     LDA $0037 = #$20
f1967   c58591656    i19216662    A:20 X:00 Y:46 S:F9 P:nvUbdIzC       $876D:48        PHA
f1967   c58591659    i19216663    A:20 X:00 Y:46 S:F8 P:nvUbdIzC        $876E:A5 36     LDA $0036 = #$07
f1967   c58591662    i19216664    A:07 X:00 Y:46 S:F8 P:nvUbdIzC        $8770:48        PHA
f1967   c58591665    i19216665    A:07 X:00 Y:46 S:F7 P:nvUbdIzC         $8771:08        PHP
f1967   c58591668    i19216666    A:07 X:00 Y:46 S:F6 P:nvUbdIzC          $8772:40        RTI
f1967   c58591674    i19216667    A:07 X:00 Y:46 S:F9 P:nvUBdIzC       $2007:00        BRK
f1967   c58591681    i19216668    A:07 X:00 Y:46 S:F6 P:nvUBdIzC          $A620:40        RTI
f1967   c58591687    i19216669    A:07 X:00 Y:46 S:F9 P:nvUBdIzC       $2009:00        BRK

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pubby
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Re: Star Evil and F-FF

Post by pubby » Wed Jan 31, 2018 5:52 am

That's the level loading code. It's probably trying to load an invalid level pointer.

What screen were you guys on? (you can PM me)

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dougeff
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Re: Star Evil and F-FF

Post by dougeff » Wed Jan 31, 2018 9:04 am

In this room, if you go through the right doors, and hug the lowest part if it (by pressing down + right as you go through) it will crash the game.
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star_evil_v1.png
star_evil_v1.png (5.62 KiB) Viewed 13880 times
nesdoug.com -- blog/tutorial on programming for the NES

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