Basic Questions & Answers thread

So each line is $3F bytes? Looks like it works like the object's SST.

Edit: There is a slight problem. The layout piece wont fully disappear untill Its off the screen. Instead, sonic would just fall "through" it.

 

Something I have been wondering about. Is it possible to change what objects are in the debug mode's cycle via the game asm language? For say like S3&Knuckles?

 

Yes, but you'll have to give them their own PLC thinger so they appear correctly while you're cycling though them in debug.

 

Of course it's possible. What you really meant to say was "can someone tell me how to".

Go to DebugOffs in the disassembly.

The fuck you talking about?

 

He means that each debug item requires it's own VRam location to read from, of which you might want to change in order to see each of the items correctly.

 

That zone from Sonic Rush is called Point W only in that cutscene before it? I'm just curious =P. I mean, no title card or data in the rom refering to that... Ok that is more a tech question but making a topic just for it is just ridiculous.

 

I'm trying to edit Tails' sprite in Sonic Crackers, but because there are no DLPCs I am having trouble ripping and replacing all of Tails
sprites. Any help with figuring out what is wrong with it would be greatly appreciated.

EDIT: spelling

 

Remember I tried to remove the layout piece? Im trying to do the same thing with an object (obj11 the bridge)
Now first it checks the X position of sonic and if the conditions are met, it will check the object's RAM untill its finds the object. It did find it, but it didn't delete it at all.

Here is the code:

Code (ASM):

1.  
2.                 cmpi.w  #$2A70,($FFFFD008).w
3.     bcc.s   locret_6EE8
4. ; code to check object's RAM
5.     lea     ($FFFFD800).w,a1
6.     move.w  #$5F,d6
7. GHZ3Trans_Loop:
8.                 tst.b   1(a1)
9.                 bpl.s   GHZ3Trans_cont
10.                 cmpi.b  #$11,(a1)
11.                 beq.s   GHZ3Trans_Action
12. GHZ3Trans_cont:
13.                 lea     $40(a1),a1
14.                 dbf     d6,GHZ3Trans_Loop
15.                
16. GHZ3Trans_Action:
17.                 move.b  #$8,$24(a1)     ; also tried calling a different routine, and DeleteObject.
18. ; code to do the scene here
19.  

It didn't work. The other routine I tried to call was routine $6 of the bridge object, which also deletes it.

@Maxd: Im not sure anyone knows how to hack sonic crackers. You should ask MarkeyJester for help if you are reffering to his disassembly.

 

Explain a bit more please?

 

SCHG:Nem s3#Object debug list

 

If you want to delete the object in a1, use DeleteObject2 instead of DeleteObject.

 

There's a LOT of routines in the disassembly called "Delete", which don't actually delete the object - they merely check whether the object needs to be deleted, and objects that have these routines are usually using them most of the time already. As FraGag said, call DeleteObject2. Also, note that bridge objects spawn a new object for every log - so you'll need to delete all of them, not just the first one.

 

Most you guys use NotePad++ to view and edit ASM files right?


I get these odd symbols.

 

This is caused by IDA Pro, which expected you to open the file using a DOS code page. You can ignore these (or remove them if they annoy you), since they are in comments, which are ignored by the assembler.

 

I use EditPlus, so I told it to open the file with DOS encoding, then changed the encoding to UTF-8 and saved it. The file got about 10% bigger, but it fixed all the wrong characters.

I've never used Notepad++, but I expect it'd have equivalent features to do this.

 

So.

I have no knowledge of hacking.

How hard would it be for me to do a simple change of Sonic's sprites in S3K to his Sonic 2 sprites?

 

S3K? You could use sonik sprite for that, but you'll need to change the palette. It won't change the animation scripts or mappings, so for some animations, such as balancing, you'll need to think something up.

Another way is through hex, but I haven't really hacked S3K so I wouldn't know...

 

Right, so. I have a Sonic 1 hack. Is nice, yes? Anywho, it was made with one of the older disassemblies, and I'm not going to port it to the new one because shut up.
Anyway, my question(s):
I've got a Mid-air action coded. It's pretty cool.
Problem: I can't quite figure out how to prevent the player from spamming it mid-air.
I've got the general idea worked out: at some point in time I insert code which runs whenever Sonic is on the ground and which sets a single byte variable to 1. Then, whenever the code which checks for my mid-air action runs, it has to check this variable to make sure that the air-action can be performed (IE: is 1) before the code runs, then set the variable to 0 after the code runs - such that it cannot be performed again until Sonic lands on something.

Which is where I'm having trouble.
1 ) I need an open variable or whatever. Someplace to store the "can sawnik has mid-air aktshun?" boolean.
2 ) Where do I put the code to set this variable to 1 such that it runs whenever Sonic is on the ground.

I've pretty much got it figured out otherwise.

 

"variable"...

You don't have variables here, only RAM locations.
Pick a free RAM location and use it to store your flag. The last 4 bytes of RAM, for example, are only used for the checksum check, and are unused afterwards. So if you put your flag in $FFFFFFFF you're safe and sound. I assume you know how to alter the value of a RAM location.

 

*Waves hand up* Oh, oh, me, me...

Okay I'm trying to work out to program new moves and abilities for my Sally hack, here is the sprite sheet of the custom moves if it helps:







The jump spin kick is little more than a mid air variation of the standing kick by the way.

Basically the list of stuff I need to figure out how to work is:

*How to change her jump animation (I think it was mentioned I somehow have to program two different animations for both her ascend and descend) and make it vulnerable to enemies.
*Trigger her attack animation to activate with 'B' (and make a radius that hits obstacles).
*Program the wall jump (akin to Mighty and Sonic Crackers).
*Deactivate being able to spin via 'Down' button (though keep spinning for necessary forced activations like the Green Hill chutes).

I know this is a lot to ask for so it's more of asking for help for ANY of them rather than ALL of them.