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Scrolling Data for Levels (Standard Kernel, MultiSprite, DPC)


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#1 Lewis2907 OFFLINE  

Lewis2907

    Moonsweeper

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Posted Fri Sep 7, 2018 3:35 PM

I have looked around the forum to try and understand the below from Princess Rescue and other games I have seen. How does one calculate the data below to create levels and make it scroll left, right, up, down etc.? I know about pfscroll but that is very repetitive (but useful at times). Basically if there is a demo with some notes stripped to the "bare bones" for moving left to right and backwards then I (we) could learn from it. Then another for up and down. Then another for open world in the kernels that would be great. I think the Multisprite is not feasible because of the mirrored playfield unless you use "brute force" a Bogax saying in one of his post to make it look like a single pixel was on and off. The others I think can be done. Thoughts? Thanks. 

 

data Level1A
0,4,0,4,0,4,0,4,0,4,0,4,0,4,0,4,0,4,0,4,0,4,0,4,0,4,0,4,0,4,0,4,64,4,36,4,36,4,36,4,36,4,36,4,66,4,129,4,129,4,129,4,129,4,129,4,64,4,0,4,0,12,0,12
0,12,0,12,0,12,0,4,0,7,0,7,0,7,0,4,0,4,0,12,16,4,16,4,16,4,16,4,16,4,16,4,0,12,0,4,0,7,0,7,0,7,0,4,0,4,0,12,0,12,0,12,0,12,0,4,0,4,0,0,0,0,0,0
0,0,0,0,0,0,0,0,0,0,0,4,0,4,0,4,0,4,32,12,32,12,32,12,32,12,36,4,36,4,68,4,4,4,4,4,0,28,0,28,4,4,36,4,36,4,36,4,36,4,32,4,32,4,32,4,0,188,0,188,0,188,0,4
0,4,128,4,128,4,128,4,128,4,32,4,32,4,32,4,32,4,32,4,32,4,8,24,8,24,8,24,8,24,8,24,8,24,0,0,0,0,0,0,0,0,0,0,0,0,0,4,0,4,0,7,0,7,0,7,0,4,0,4,0,4,0,4
end


Edited by Lewis2907, Fri Sep 7, 2018 3:36 PM.


#2 Gemintronic OFFLINE  

Gemintronic

    Jason S. - Lead Developer & CEO

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Posted Fri Sep 14, 2018 12:06 AM

Not a full answer due to time of night here :)

 

I think there are several topics to explore.  You best bet is in topics which bogax helps with regarding 4 way scrolling.  Also, you can fake smooth horizontal scrolling with the multi sprite kernel.

http://atariage.com/...scrolling-demo/

http://atariage.com/...ata-want-4-way/

 

I know nothing about the DPC+ kernel.  Maybe by now it supports scrolling.



#3 Lewis2907 OFFLINE  

Lewis2907

    Moonsweeper

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Posted Fri Sep 14, 2018 11:44 AM

Gemintronic,

Thanks. I have used both. I used your when I started making (The Quest) a sub game with the Sprite seaQuest. The data is what I'm interested in. I plan to play with this weekend if I have time to see if I can make sense of it. I did use Bogax as well.




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