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 Forum: Newbie Help Center   Topic: Detecting 'point of collision'

Posted: Sun Nov 30, 2014 4:10 pm 

Replies: 2
Views: 943


I had written a lot about how to get left, right, up or down, but it boils down to exactly what you're thinking. absolute value of object X midpoint - enemy X midpoint. absolute value of object Y midpoint - enemy Y midpoint. If X distance was greater than Y, collision is horizontal, else collision ...

 Forum: Newbie Help Center   Topic: Detecting 'point of collision'

Posted: Sun Nov 30, 2014 10:56 am 

Replies: 2
Views: 943


This might be more of a programming question than NES specific, however I can conceive of plenty of ways to do this with higher level functions or if cycles weren't a concern...so I guess I'm looking for a suggested method for something much more efficient - I'm looking to essentially detect whether...

 Forum: Newbie Help Center   Topic: Random numbers from start?

 Post subject: Random numbers from start?
Posted: Tue Nov 18, 2014 8:35 pm 

Replies: 3
Views: 1138


So I've worked through and, with the help of posts I've found on the subject, developed a PRNG that works for me pretty well...however, I'd love to develop something that gives me a random seed value for it prior to, say, player input. Does anyone have any methods for this? Having a random seed valu...

 Forum: Newbie Help Center   Topic: Trying CHR-Ram instead of CHR-Rom -

Posted: Wed Nov 05, 2014 9:51 pm 

Replies: 26
Views: 5411


Strange - I thought I had rendering turned off...I'm doing this all before I actually turn rendering on. I'll check again, but I'm pretty sure. That was my first attempt at a fix.' It seems I was able to fix it - but I'm not sure why this fixed it. I have both rendering and NMI disabled while I clea...

 Forum: Newbie Help Center   Topic: Trying CHR-Ram instead of CHR-Rom -

Posted: Wed Nov 05, 2014 8:49 pm 

Replies: 26
Views: 5411


I sort of feeling it was a vBlank issue - that there were only so many cycles for these updates...thanks for confirming. I'm wondering what is the general method of initiating pattern tables for folks who ARE using RAM? I generally understand the vBlank, I'm just not sure how to load x-data, then wa...

 Forum: Newbie Help Center   Topic: Trying CHR-Ram instead of CHR-Rom -

Posted: Wed Nov 05, 2014 8:25 pm 

Replies: 26
Views: 5411


Alright, so based on all the help, I have this working flawlessly. Tokumaru - once I got the fundamentals down, implementing the variable method you suggested was very easy and is awesome. Now I've got it set up to load as many tiles wherever I want in the pattern table...very logical and is right i...

 Forum: Newbie Help Center   Topic: Trying CHR-Ram instead of CHR-Rom -

Posted: Sun Nov 02, 2014 6:45 pm 

Replies: 26
Views: 5411


Totally makes sense, and makes sense why the offset is happening the higher the number got.

Thanks lidnariq! And everyone else who has been contributing.

Joe G

 Forum: Newbie Help Center   Topic: Trying CHR-Ram instead of CHR-Rom -

Posted: Sun Nov 02, 2014 6:32 pm 

Replies: 26
Views: 5411


Hey tokumaru - well I'll likely adopt a method like that eventually...first I'm trying to get some fundamental understanding going, and this is just sort of easier to implement... I was able to do something like I'd originally set out to do (likely to be updated to a method more like yours, tokumaru...

 Forum: Newbie Help Center   Topic: Trying CHR-Ram instead of CHR-Rom -

Posted: Sun Nov 02, 2014 3:28 pm 

Replies: 26
Views: 5411


Thanks for the info. Still not working as intended. I'm doing a whole lot of plunking around with it and again this is the first day I've had to devote to playing with it, so thanks for bearing with me! I'm generally getting the concept of using the RAM pointer (correct verbiage?), as I've done some...

 Forum: Newbie Help Center   Topic: Trying CHR-Ram instead of CHR-Rom -

Posted: Sun Nov 02, 2014 1:55 pm 

Replies: 26
Views: 5411


Hey guys - thanks so much! Yes, the #$00 was a type in copying it over...my bad! Koitsu - yes, you understood perfectly, I'm essentially talking about rows of the pattern table as seen in the PPU viewer of FCUEX. I am still sort of thinking of it in terms of ROM in my head, so trying to adjust my th...

 Forum: Newbie Help Center   Topic: Trying CHR-Ram instead of CHR-Rom -

Posted: Sun Nov 02, 2014 10:14 am 

Replies: 26
Views: 5411


Playing around a bit with CHR-Ram rather than CHR-Rom (undecided at this moment, but would like to at least have a good handle on it in case I go that direction) - I managed to pull in part of a CHR file using RAM with the help of some awesome folks here. I'm trying to figure out how to append the c...

 Forum: Newbie Help Center   Topic: Creating a 'foreground' depth layer...

Posted: Sat Aug 16, 2014 11:13 am 

Replies: 5
Views: 1712


Thanks for chiming in, Tepples. I'll try a few tests this weekend and report what I find. :-) **I promised I'd report back...and here I am. Yes, it works. And it's pretty easy...exactly as outlined above** Here's a video of it working: http://joegranatoiv.tumblr.com/post/95151389692/days-of-diligenc...

 Forum: Newbie Help Center   Topic: Creating a 'foreground' depth layer...

Posted: Sat Aug 16, 2014 5:55 am 

Replies: 5
Views: 1712


Yeah, I saw that method too. The former seemed the more logical choice right now if I am understanding it right. Does that method make sense from a pragmatic standpoint? *the method I first described, I mean*. I'm going to try some tests this weekend, and if I am conceptually understanding, it shoul...

 Forum: Newbie Help Center   Topic: Creating a 'foreground' depth layer...

Posted: Sat Aug 16, 2014 5:31 am 

Replies: 5
Views: 1712


Alright folks, so I did some research on this and found a trick (if I understood it correctly), and just had a few questions. I've been considering jumping to 8x16 tiles, which may necessitate 'foreground' background tiles. I understand the NES does not have a way to create a foreground layer, per s...

 Forum: Newbie Help Center   Topic: Changing attribute data in game -

Posted: Sat Jul 26, 2014 4:32 pm 

Replies: 5
Views: 1682


Hey thanks so much. It's the writing to $2006 first that I was missing, thanks for clarifying that! The convoluted math way I was attempting to do it was a last ditch effort...essentially, since the 'menu bar' is 128 tiles of data, I was trying to add to the end of that data to get to the attribute ...
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