Quick Modding/Hacking Answers Thread

well perhaps now you can find the motivation to submit a pull request on github that fixes those issues

bring it on

 

Where can you change how many bullets can be on screen at one time?

 

Where can you change how many bullets can be on screen at one time?

I believe this has what your looking for:
https://www.cavestory.org/forums/th...apon-hacking-tutorials-7-weapons-so-far.5240/

 

Where can you change how many bullets can be on screen at one time?

Yes.

 

Theres a bullet limit?

 

for individual weapons there's a function called in the gun code somewhere that checks how many of that type are present
as for the TOTAL limit of all bullet objects, you'd need to rearrange some memory so not as easy

 

ahh still, theon screen data for the seven weapons is there but beyond that....

 

Where can you change how many bullets can be on screen at one time?

I believe this has what your looking for:
https://www.cavestory.org/forums/th...apon-hacking-tutorials-7-weapons-so-far.5240/

There's no method of increasing the bullet limit there.

Okay, there's a bit of misinformation here. As well as a universal limit on the amount of bullets existing at a time, each weapon has it own separate maximum bullet values. For example, you can only have 1 Blade thrown at a time, you can only have 2 Polar Star bullets on the screen with the exception of the Spur.

Theres a bullet limit?

for individual weapons there's a function called in the gun code somewhere that checks how many of that type are present
as for the TOTAL limit of all bullet objects, you'd need to rearrange some memory so not as easy

If you want to see how that is done, maybe you should take a look at Critter Tower Defense and Rise of Ballos, two mods of mine. RoB also has an increased entity limit too.

 

I remember someone showed me ASM code for number of bubbles on screen.

Anyway, where should I look for issues when I get the "Failed to read stage" error? The warp ID is correct to me. [Yes GDI im temporarily using a windows pc.]

 

How can you edit the range in which an enemy can detect the player (ASM of course). I'm trying to increase the distance before a gatekeeper begins to move towards the player.

 

How can you edit the range in which an enemy can detect the player (ASM of course). I'm trying to increase the distance before a gatekeeper begins to move towards the player.

CPU Disasm
Address Hex dump Command Comments
00436D1B MOV ECX,DWORD PTR SS:[EBP+8]
00436D1E MOV EDX,DWORD PTR DS:[ECX+8]
00436D21 SUB EDX,10000 #//DISTANCE LEFT
00436D27 CMP EDX,DWORD PTR DS:[49E654]
00436D2D JGE SHORT 00436D7E
00436D2F MOV EAX,DWORD PTR SS:[EBP+8]
00436D32 MOV ECX,DWORD PTR DS:[EAX+8]
00436D35 ADD ECX,10000 #//DISTANCE RIGHT
00436D3B CMP ECX,DWORD PTR DS:[49E654]
00436D41 JLE SHORT 00436D7E
00436D43 MOV EDX,DWORD PTR SS:[EBP+8]
00436D46 MOV EAX,DWORD PTR DS:[EDX+0C]
00436D49 SUB EAX,6000 #//DISTANCE UP
00436D4E CMP EAX,DWORD PTR DS:[49E658]
00436D54 JGE SHORT 00436D7E
00436D56 MOV ECX,DWORD PTR SS:[EBP+8]
00436D59 MOV EDX,DWORD PTR DS:[ECX+0C]
00436D5C ADD EDX,4000 #//DISTANCE DOWN
00436D62 CMP EDX,DWORD PTR DS:[49E658]
00436D68 JLE SHORT 00436D7E
00436D6A MOV EAX,DWORD PTR SS:[EBP+8]

 

Thanks, my man. I'll try it out as soon as I have the chance.

 

If you also want the damage:

00436CFD MOV DWORD PTR DS:[ECX+0A4],0 #//CONTACT DAMAGE
00436F37 MOV DWORD PTR DS:[EAX+0A4],0A #//SWORD DAMAGE

 

how do you set a start point in boosters lab

 

it's a hackinator module it shouldn't be too hard to figure out which one but i forget specifically

 

it's a hackinator module it shouldn't be too hard to figure out which one but i forget specifically

I found it, thanks!

 

Hey, so Discord servers crashed right as I was about to ask my question so I guess I gotta retype here:

I don't really know what I'm doing because I'm not at all used to OllyDbg / ASM logic
Say I wanted to have a duplicate of an entity, so that I could point the graphics elsewhere and make a minor edit of it while still having the original.

I copied the binary/hex in its entirety from the entity I wanted duplicated, and pasted it over a boss entity with more room that I have no intention of using. I NOP'd the rest of the code even though from my logic the RTN should end that loop and never execute it. I didn't expect this to work but it mostly does.

After saving as a new executable, editing NPC.tbl to point to the original graphic sheet, and adding in the new entity to my test map, it seems to work for about 20 seconds after it spawned in.
Going through it in Olly shows that it crashes at 42B53E, which isn't even entity code I believe, with "Access violation when writing to 7E4D1DED".
For kicks I NOP'd this entire function and it started to work for an additional 30 seconds, acting completely like the original NPC, before crashing again elsewhere with a similar error (the address was different).

Something I missed when trying a technique like this for entity duplication? Do I need to be more specific with which entities I'm using?