Sonic 1 water guide!

That's weird, I entered something in there. Here is the complete post again:

I made a copy of the lz_heigh.bin and renamed it to ghz_heigh.bin so GHZ could have a different water height than LZ, since GHZ is called DMZ (Dark Marsh Zone) in my hack and should not be flooded, just have a small bit of water. What values do I need to edit to accomplish this? BTW Selbi, I love your Text Generator Tool!

 

Well thanks, that has nothing to do with though though. =P


Anyway, just duplicating a file won't get you anywhere. The compiler doesn't check for every file in a specific folder, you need to "include" the file first. In case your file is a .bin, you need to use "incbin" instead, like so:



incbin misc\ghz_heigh.bin
even



The "even" is necesary in some way (dunno why, but it is). But even if you add this code, nothing will happen, because you didn't tell the game to use those things. Take a look at "Level_ClrVars3", it will definitly help you at understanding this.


That's it for now, if you didn't get it, I'm sorry, but you really shouldn't ask for something you can't do at least in some way alone.

 

I did that, I just don't understand the format of that bin file.

 

It's the default water height for each LZ level. Unchanged it looks like this:

Code:

00 B8 03 28 09 00 02 28

To understand this, look at this:

Code:

00 B8 - LZ1

03 28 - LZ2

09 00 - LZ3

02 28 - LZ4 (SBZ3)

 

If I understand this corecctly, the 2 bytes tell us the water height in Y values used by Debug? So FF FF gets us a level full of water, and 00 00 no water at all.


The water code gets the acts right in GHZ, or do I have to remove the last 2 bytes?

 

Almost, it's just the other way around: If you have 00 00 the entire level is filled with water and with FF FF, it's still there, but at the very bottom of the level.

 

Thanks for your help Selbi!


EDIT: GHZ 1 just doesn't want to accept the changes here. I filled the file with FF FF, but it just doesn't want to see the changes in Act 1. Act 2 works fine, just act doesn't.


EDIT 2: I forgot to incbin the right file, but once I fixed it, I still get the water's 'drag' when I am not in it and I also drown when I am out of the water.

 

Hey, thanks mate nice tutorial you made there

 

I can't understand, can you help me?

 

Yes, I can. Look at the time difference between my post and your one, then read Rule 09 again. This should certainly help you.

 

Look at the code, I made a change at the end!


I'm back!

 

Pinned. This is a handy bit of information for all hackers of S1. =P

 

I agree, this is handy!

 

How can i put the water surface, bubbles and water splash?
Because it look like this:
http://image.noelshack.com/fichiers/2016/21/1464543554-sans-titre.png

 

There is a "pattern load cues" list in Sonic 1, which has lists of graphics to load, where in VRAM to load them, and in what order. Unfortunately, I don't know which disassembly you are working with, so I cannot help you any further.

 

Hi Master MarkeyJester, i work on the Hivebrain 2005.

 

"_inc\Pattern load cues.asm" is the file you will need to edit.

In the list "PLC_LZ:" you will find:

Code:

        dc.l Nem_Splash        ; waterfalls and splash
        dc.w $4B20
        dc.l Nem_Water        ; water    surface
        dc.w $6000

As well as:

Code:

        dc.l Nem_Bubbles    ; bubbles and numbers
        dc.w $6900

You can copy and paste these into the "PLC_GHZ2:" list, though you will need to change the first value in that list:

Code:

PLC_GHZ2:    dc.w 5

From 5 to 8, since you now have 3 more entries in the list now.

The final thing to keep in mind now, is that other art "may" already be loaded to the VRAM addresses the water wants to go. I suggest putting these three entries at the end of the list, so that if any GHZ art screws up, it's easier to find. I do believe that GHZ already uses up quite a substantial amount of VRAM, you more than like will need to remove something else before you can put those water graphics in.

Also, you don't have to call me "master", as interesting as that sounds, it's not really the image I want d=

 

It's working but yes, i have to remove something else because there is many tiles of water surface instead GHZ tiles...
How can i remove something?
For exemple, i want to remove the palmtree art.. is it ok, and is it enough?

Ok sorry!

 

The palmtrees are part of the level graphics, so I wouldn't bother with that.

Check "PLC_GHZ" and "PLC_GHZ2" lists, each one has a pointer name, and a VRAM address, for example:

Code:

		dc.l Nem_PplRock	; purple rock
		dc.w $7A00

If you wanted to remove the purple rock graphics, you delete those two lines from the list, then change the first value in the list:

Code:

PLC_GHZ:	dc.w $B

B is the number of entries in the list, since you've removed one from the list (in this example the purple rock), subtract 1, so B - 1 = A

Change the B to an A.

If you delete another entry from that list, subtract 1 again, A - 1 = 9.

Change the A to a 9.

If you delete another entry, subtract 1 again, 9 - 1 = 8.

Change the 9 to an 8.

 

I understand, I have to remove objects and not of art!
Ok, the most difficult choice...
And about B - 1 = A, I know all that