Quick Modding/Hacking Answers Thread

Script events 0000-0100 are reserved for head.tsc and will give you problems if you try to use them

There's no real easy way to do invincibility without hax, other than the fact that the player can't touch (take damage from) an NPC while a script event is running.

 

Script events 0000-0100 are reserved for head.tsc and will give you problems if you try to use them

I know, that's from head.tsc.

There's no real easy way to do invincibility without hax, other than the fact that the player can't touch (take damage from) an NPC while a script event is running.

Didn't think so... How hard would it be to check the flag from ASM? Just a single JNZ [0xFEEDBEEF],0xBADF00D (FEEDBEEF being a memory address containing whatever variable the engine uses to store flag 64, BADF00D being right after the code that makes the player get hurt) right before the code that makes the player get hurt?

 

Flags are stored in a bitfield, 8 flags per byte. There's a CheckFlag function, and it's used as such:

PUSH (Flag num, hex)
CALL 40E930
ADD ESP, 4
TEST EAX, EAX
JZ (code to execute if flag not set)
(Code to execute if flag set)

You could do it as you suggested, or you could test if the flag is set and MOV [49E6C8], 10 ever frame that the flag is set (that's the invincibility timer). There are many possible solutions.

 

Is there a semi-easy way to do the title screen hack?


y'know, like this:

 

I know it's quite easy to move the buttons arround, there's a little application in one of the download packs for modding.

 

I know it's quite easy to move the buttons arround, there's a little application in one of the download packs for modding.

What? Since when?

 

I know it's quite easy to move the buttons arround, there's a little application in one of the download packs for modding.

Link? :J?

 

Yeah, nevermind it was only a resource hacker it can't do it that easily. Also I can't find the link :x

 

Is there a semi-easy way to do the title screen hack?


y'know, like this:

I may not know the answer, but just to clarify for everyone who does, do you mean the image in the background or the button locations?

 

I may not know the answer, but just to clarify for everyone who does, do you mean the image in the background or the button locations?

Both.

 

You need hax.
http://www.cavestory.org/forums/threads/871/
That thread can tell you how; the rest is up to you.

 

that.
It's all pretty easy, tually. You just need to find the right offsets.

 

Is there a way to make the command <CMP "Change tile" last if you go into one room and come back?

 

Is there a way to make the command <CMP "Change tile" last if you go into one room and come back?

No.

The best solution for this is to put the <CMP's in one of the events used to enter the rooms, or a H/V trigger near the tiles/where you enter the room/near saves.

 

Does booster 0.8 and booster 2.0 rely on the same code for depleteing fuel? I wanted a double jump from booster 0.8 and infinite from 2.0.
If not, then could someone please let me know their offsetes in assembly?
"Offset information is the information I hate finding the most"

 

41593C
in that general therabouts. They both use the same architecture of refuelling, located a bit higher up at around 415796

 

41593C
in that general therabouts. They both use the same architecture of refuelling, located a bit higher up at around 415796

Darn, Do you think there is a way to make booster 0.8 only mavoe you up once, but straight up like booster 2.0, while the fuel is set to limitless?
It is really important, if not, I might have to try another type of game play.

 

There's always a way. I haven't got time to do it tonight though. Perhaps remind me later if you can't get it yourself.

 

I have a character sprite that I need to show up in a cutscene and animate. Is there a way to add more NPC entities to the game or will I have to somehow replace the existing ones? How would I do that?

 

Do you mean you want a different type of NPC? If so, that would require assembly hacks. There may be a way to add new ones, but it's probably better to just modify existing ones, since there are so many types of NPCs, many of which probably won't be used in your mod, that you can just replace the code for the unused one with your new code. Is that what you were asking?