Quick Modding/Hacking Answers Thread

It's once they reach 280 (0x118) health or less. The CMP for it is at 0047B984, if you wanted to change it at all.
(4BBA98 is Omega's health, if you wanted to monitor it with a trace)

what if i set omegas health to 1600?
i thought previously it was 400

also what does this part mean

The CMP for it is at 0047B984, if you wanted to change it at all.
(4BBA98 is Omega's health, if you wanted to monitor it with a trace)

is this one of those weird tricks that you can use to somehow get their health like with flags above 8000?

 

No, you can't edit that code with OOB flags because it's "read-only." (not to mention way out of the range of the OOB flags)
It's just some extremely rudimentary *assembly editing. If you open up the game in OllyDbg or what-have-you, you can navigate to 0047B984 by pressing CTRL+G and entering that address. Then, just change the number on the end of the CMP at that address to whatever you want Omega to transform at. The number will need to be in hexadecimal, but there are heaps of converters out there, like this one.
It shouldn't be that difficult.

*Which means: opening the executable file and changing the bytecode in it.

ok im really new to this so do i open the doukutsu.exe file or the data file? (EDIT: wait i think it has to be the doukutsu thing)

also does CMP mean change map tile in this situation....

(oh and just curious why are they called oob flags? that sounds like a weird blob or something)




another edit:

Ok, it says it cant find this 0047B984 thing
I think I'm using a hex editor???
theres a ton of weird numbers and on the side it says offset and things that kind of look like the 0047B984 but they say stuff like 00000530 instead or something

 

ok im really new to this so do i open the doukutsu.exe file or the data file?
(oh and just curious why are they called oob flags? that sounds like a weird blob or something)

Open Doukutsu.exe with Ollydbg, yes

And OOB means Out of Bounds, meaning beyond the appropriate boundaries

 

Open Doukutsu.exe with Ollydbg, yes

And OOB means Out of Bounds, meaning beyond the appropriate boundaries

it seems like the hex's or whatever are in order.

my only goes up to 0016something

why is that?

 

Yes, you definitely open the .exe. That's what a debugger is for; plus there's no code in the other files.

No, CMP is an assembly mnemonic. Something to help the poor souls who use it enter in instructions without memorising opcodes. It just means "compare," and will subtract one value from another, but not store it; only getting flags. Essentially, having that CMP and then the conditional JMP (JE,JNE,etc.) is like an if statement in high-level programming languages.

Like I said, you need to open the exe in OllyDbg, and press CTRL+G, enter "0047B984" into the box it gives you and press enter. That should take you to an instruction reading "CMP DWORD PTR DS:[4BBA98],118"; change the "118" part. The number you enter will need to be in hexadecimal, so please use the converter I posted before if you don't know how hexadecimal works.

You should use OllyDbg. It's a debugger. A hex editor will allow you to achieve the same result, but it won't give you the information you want in a manor in which it is easily distinguishable. (i.e. it's all in bytecode, and not interpreted at all for you beyond an ASCII/Unicode dump -- somewhat more helpful than using a text editor)

i made a copy of my doukutsu and data files before doing this is that a good idea?

is there any chance it will destroy what im doing

edit: ok i did all of that and my thing isn't exploding so thats good

but whenever i exit the ollydbg thing it always reverts back to 118

is there any way to save my changes...?


another edit: I GOT IT TO WORK

i dont really know what i did but i pressed a lot of buttons and eventually it saved an entirely new copy of my doukutsu game AND I GOT OMEGA TO INSTANTLY COME OUT OF THE GROUND

haha thats so cool

im having omega be the final boss what do you think is a good time for him to come out of the ground? if he has 1600 health


also this may be super complicated, but is it possible to change the number of projectiles omega shoots out?

 

Oh fuck me, I forgot to tell you how to save ...
So, once you've entered in the new number, select the highlighted "modified code", right click on it, find "edit", then "copy to executable."
A window will pop up, close it and choose the option to save in the dialogue box that comes up. You will be prompted to save. If you save over your old file, it will auto-backup your last exe for you, so there's no need to worry about messing it up at all. (too many million copies?? -- just use a new filename like "Doukutsu_testingOmega.exe" or whatever)

haha it works! now the boss fight is actually kind of balanced


now that ive done weird changey stuff does this make me super cool cave story editor pro

also how did you know that omegas health come out of ground thing would be at that spot?

 

So, if i have a character with a face pic having a back and forth exchange with someone without one, the character without gets the face pic of the last person who spoke to them. How do i fix this? (i've already tried <NOD<CLR)

 

<FAC0000

 

This might is a bit of a more specific problem, but i can't find a solution myself, so here it is. I was editing Egg Corridor when i realised that in order to fit something large inside of it, i needed to expand the ceiling, so that i did. When i began playtesting, everytime i exited a door or the teleporter, i was spawned on the ground for as millisecond than was teleported about five blocks in the air (this only happened in the "Main" Egg corridor room, not in rooms that can be entered through it). Does anyone have a solution?

 

Have you checked the exact spawn location after you expanded the ceiling? Is it in the same place?

 

Have you checked the exact spawn location after you expanded the ceiling? Is it in the same place?

I have now. (don't know how i forgot to check that, but at least your post reminded me that was required)

 

are teleporters possible to add in the game without copying and pasting the ones that are already there

i can never seem to do it it always messes up after a couple times of using it like the lights will stop blinking or the thing blue screen cool thing wont show up or quote wont show up or something will just go wrong but i never know how to fix it

is there some step by step instruction of how they work in the game somewhere


edit: oh and by in the game i mean teleporters in the game, not instructions inside the game
i think that was obvious though but y'all know

 

are teleporters possible to add in the game without copying and pasting the ones that are already there

i can never seem to do it it always messes up after a couple times of using it like the lights will stop blinking or the thing blue screen cool thing wont show up or quote wont show up or something will just go wrong but i never know how to fix it

is there some step by step instruction of how they work in the game somewhere


edit: oh and by in the game i mean teleporters in the game, not instructions inside the game
i think that was obvious though but y'all know

The basic command is that:

<PRI<FAO0004<TRA[Room code]:[Fade in event]:[X coordinate]:[Y coordinate]   ←  For a normal exit
<PRI<CNP0100:0000:0000<SOU0011<FAO0004<TRA[Room code]:[Fade in event]:[X coordinate]:[Y coordinate]   ←  For a door exit

On the other room, the code have to be this:

#0090
<MNA<CMU[Room Music]<FAI0000<END
#0091
<MNA<CMU[Room Music]<FAI0001<END
#0092
<MNA<CMU[Room Music]<FAI0002<END
#0093
<MNA<CMU[Room Music]<FAI0003<END
#0094
<MNA<CMU[Room Music]<FAI0004<END

Or any other event if want to make a cutscene like this:

#0095
<KEY<MNA<CMU0002
<ANP0500:0001:0000<FAI0004
<CNP0301:0112:0002<WAI0100
<ANP0500:0000:0000
<MYD0002<SMC<DNP0301<END   ←  Teleporter cutscene

In this case you have to put the respective events, or nothing appears in the screen.

Here is an example:

#0100
<PRI<CNP0100:0000:0000<SOU0011<FAO0001<TRA0012:0091:0037:0011   ←  Start Point exit.

#0091
<MNA<CMU0008<FAI0001<END   ←  First Cave fade in event.

 

The basic command is that:

<PRI<FAO0004<TRA[Room code]:[Fade in event]:[X coordinate]:[Y coordinate]   ←  For a normal exit
<PRI<CNP0100:0000:0000<SOU0011<FAO0004<TRA[Room code]:[Fade in event]:[X coordinate]:[Y coordinate]   ←  For a door exit

On the other room, the code have to be this:

#0090
<MNA<CMU[Room Music]<FAI0000<END
#0091
<MNA<CMU[Room Music]<FAI0001<END
#0092
<MNA<CMU[Room Music]<FAI0002<END
#0093
<MNA<CMU[Room Music]<FAI0003<END
#0094
<MNA<CMU[Room Music]<FAI0004<END

Or any other event if want to make a cutscene like this:

#0095
<KEY<MNA<CMU0002
<ANP0500:0001:0000<FAI0004
<CNP0301:0112:0002<WAI0100
<ANP0500:0000:0000
<MYD0002<SMC<DNP0301<END   ←  Teleporter cutscene

In this case you have to put the respective events, or nothing appears in the screen.

Here is an example:

#0100
<PRI<CNP0100:0000:0000<SOU0011<FAO0001<TRA0012:0091:0037:0011   ←  Start Point exit.

#0091
<MNA<CMU0008<FAI0001<END   ←  First Cave fade in event.

oh that makes more sense
although looking at your code gave me a question: Do most of you guys change the door npc to null to show the effect of opening it, or do a <DNP instead?

I normally do <DNP

 

oh that makes more sense
although looking at your code gave me a question: Do most of you guys change the door npc to null to show the effect of opening it, or do a <DNP instead?

I normally do <DNP

<CNP prevents any flag from being activated by mistake. As for example, if the door or any npc is programmed to appear or disappear if any is activated, deleting it ends up activating the flag for some reason.

 

<CNP prevents any flag from being activated by mistake. As for example, if the door or any npc is programmed to appear or disappear if any is activated, deleting it ends up activating the flag for some reason.

Gonna end up with a lot of empty entities taking up slots if you use that pattern everywhere

 

Gonna end up with a lot of empty entities taking up slots if you use that pattern everywhere

On RPG Maker is almost the same thing. The game just makes the npc invisible, not interactable and can pass through it. I noticed it in a certain bug when I was making a game.
But yeah, these things we do to put the npcs out of sight...

 

well cave story has a hard limit of like 512 NPCs (or fewer, in certain circumstances) active at once so, be aware of that

 

well cave story has a hard limit of like 512 NPCs (or fewer, in certain circumstances) active at once so, be aware of that

does that have anything to do with in one mod i made i put like 100 of those sun things that explode into those mini sun things (in the sand zone) and eventually all npcs stopped dropping experience?

 

yes