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Classic Kong Demo


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#1 swapd0 OFFLINE  

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Posted Fri Dec 7, 2018 3:22 PM

I've uploaded a demo version of classic kong

 

I need feedback from NTSC users ;)

 

https://swapd0.blogspot.com

 



#2 ls650 OFFLINE  

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Posted Fri Dec 7, 2018 3:32 PM

Looks very interesting!  Time to fire up my Skunkboard loader....

 

EDIT:  I tried it out on one of my K-model NTSC Jag.  Loads fine, inputs seem to work fine.  The graphics look nice and colourful.  There are some sound effect and voices.

 

I found when Mario first appears by his lonesome and you run to the right on the lower level, he moves at a decent rate of speed.  However, as barrels and the fireball appear, he slows down.  By the time you have the fireball and three barrels on the screen, his movement speed drops substantially, maybe by half?  The controls work fine.  I let myself get killed a few times and the level reset just fine.  I found completing this level as is fairly easy. 

 

Once I climb the ladder and reach the princess, the screen goes black, I hear the princess saying "Oh no!" and then eventually I find myself back at the title page after a lengthy wait.


Edited by ls650, Fri Dec 7, 2018 4:08 PM.


#3 swapd0 OFFLINE  

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Posted Fri Dec 7, 2018 4:17 PM

It's strange because it's supposed that you should play the first level, over and over again.



#4 swapd0 OFFLINE  

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Posted Fri Dec 7, 2018 4:19 PM

About the slowdowns, I need to speed up the code.



#5 CyranoJ ONLINE  

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Posted Fri Dec 7, 2018 4:45 PM

 

If there's anything I can do to help, let me know - Kong is ossum!



#6 ls650 OFFLINE  

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Posted Fri Dec 7, 2018 5:02 PM

Strange - Cyrano's shows the ape grabbing the princess and then the level restarts.  Not on mine.

 

As soon as Mario reaches the top of the ladder the screen goes black, and I don't see the ape grabbing the princess, nor do I see the level restart.

I wondered if something was wrong with my flash, so I reflashed the ROM just to be sure.  Same story.



#7 CyranoJ ONLINE  

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Posted Fri Dec 7, 2018 5:08 PM

The slowdown will be the 3x 16 bit trans layers.  Make the backdrop 4bpp and the skyline 1bpp (if it isn't already) and you'll get a significant speedup.

 

If you want the blue->purple effect, use 3 x 4bpp bands and burn some CLUT tables. It's still less than using a 16bpp image.



#8 JagChris ONLINE  

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Posted Fri Dec 7, 2018 7:07 PM

Thats awesome swap! Keep going!

#9 BeefMan OFFLINE  

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Posted Fri Dec 7, 2018 8:01 PM

Had the same issue with the screen going black after making it to the top but not consistently. It's looking and sounding very good overall though, nice progress! Thanks for sharing the demo!

#10 madman OFFLINE  

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Posted Fri Dec 7, 2018 8:36 PM

Wow, great work!



#11 Gummy Bear OFFLINE  

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Posted Sat Dec 8, 2018 3:15 AM

Yes! This looks sweet, man!
I'll take a cart! :D

#12 agradeneu OFFLINE  

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Posted Sat Dec 8, 2018 4:10 AM

Surely looks very promising. :-) Sprites look already great! I could help out with some background bmps swapdO. Just PM.

Edited by agradeneu, Sat Dec 8, 2018 4:11 AM.


#13 AtariLeaf OFFLINE  

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Posted Sat Dec 8, 2018 6:34 AM

So this is a port of the SNES homebrew Piko Interactive released a few years ago? I got a copy of this before they pulled it, I'm assuming for copyright reasons. I think they redid the sprites and made it a viking themed game but I think that's gone from their store too.



#14 swapd0 OFFLINE  

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Posted Sat Dec 8, 2018 7:23 AM

I'm using 2x 4bits bitmap for the clouds (I draw 256 + 16 pixels to make the scroll), 1 bit bitmap for the skyline, 8bits bitmap for the tiles screen, 16 bits bitmap for the sprites, all sprites are 16x16 pixels.

 

I forgot to include two black stripes on each edge to remove the weird effect on the borders.

 

Maybe playing with the release bit I can get more CPU time.

 

Also I want to change vbcc for gcc, it generates better code.


Edited by swapd0, Sat Dec 8, 2018 7:26 AM.


#15 Zerosquare OFFLINE  

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Posted Sat Dec 8, 2018 9:12 AM

Good job!

But I'd be careful with the title and graphics. Nintendo is pretty aggressive with its IP.

#16 walter_J64bit OFFLINE  

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Posted Sat Dec 8, 2018 10:15 AM

Good job!

But I'd be careful with the title and graphics. Nintendo is pretty aggressive with its IP.

I agree swapd0 you might want to take a page from kid kong's Mario on the St. ;)

Edited by walter_J64bit, Sat Dec 8, 2018 10:21 AM.


#17 Gummy Bear OFFLINE  

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Posted Sat Dec 8, 2018 11:10 AM

Good job!But I'd be careful with the title and graphics. Nintendo is pretty aggressive with its IP.


A very good point.
I'm surprised we all haven't already been sued, along with anyone we've talked to in the last year.

#18 Machine OFFLINE  

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Posted Sat Dec 8, 2018 11:21 AM

In 1997, I had a Mario guy opening a mailbox "gif" (on my website) and Nintendo sent me a letter threatening me. The letter said I had 48 hours to remove it. It was hilarious.


Edited by Machine, Sat Dec 8, 2018 11:22 AM.


#19 swapd0 OFFLINE  

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Posted Sat Dec 8, 2018 11:28 AM

WTF!?!?

 

Maybe we can change the kong for an octopus, the blonde girl for a ginger girl, and Mario for... another guy dressed with any color but red.



#20 walter_J64bit OFFLINE  

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Posted Sat Dec 8, 2018 12:27 PM

WTF!?!?

 

Maybe we can change the kong for an octopus, the blonde girl for a ginger girl, and Mario for... another guy dressed with any color but red.

An octopus to a Jaguar. :P



#21 ls650 OFFLINE  

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Posted Sat Dec 8, 2018 1:49 PM

Just rename it to Guido's Gorilla Adventure and you're in the clear.



#22 Isgoed OFFLINE  

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Posted Sun Dec 9, 2018 5:54 AM

I've uploaded a demo version of classic kong

 

I need feedback from NTSC users ;)

 

 

Just tried this on a M model Jaguar.

 

At 60Hz. after clearing the level, the screen goes black and stays black, but the game continues to the next level as I can hear the sounds.

As mentioned by others, the game slows down to a snails pace when there are more objects on screen.

 

At 50Hz. the game plays flawless at a constant pace, a bit too easy but fun nevertheless!

The use of the left/right audio channels is very nice and adds to the "feel" of the game imo :)


Edited by Isgoed, Sun Dec 9, 2018 5:54 AM.


#23 swapd0 OFFLINE  

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Posted Sun Dec 9, 2018 8:10 AM

 

At 50Hz. the game plays flawless at a constant pace, a bit too easy but fun nevertheless!

The use of the left/right audio channels is very nice and adds to the "feel" of the game imo :)

 

Yes, I made a mistake when compiled the demo version and the level loops it's not incremented, so you play at the same difficulty level over and over again.



#24 Isgoed OFFLINE  

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Posted Sun Dec 9, 2018 9:26 AM

Ok, after playing this some more I must add that there is slowdown when jumping over barrels when there are more flames and barrels in the game.

This is in 50Hz. mode.



#25 Lost Dragon OFFLINE  

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Posted Sun Dec 9, 2018 10:48 AM

Looking very promising indeed.

Great work.




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