Quick Modding/Hacking Answers Thread

Spoiler

CPU Disasm
Address Command
00449A89 MOV EAX,DWORD PTR SS:[ARG.1]
00449A8C MOV ECX,DWORD PTR DS:[EAX+0C]
00449A8F ADD ECX,0A000
00449A95 CMP DWORD PTR DS:[49E658],ECX
00449A9B JGE SHORT 00449AE1
00449A9D MOV EDX,DWORD PTR SS:[ARG.1]
00449AA0 MOV EAX,DWORD PTR DS:[EDX+0C]
00449AA3 SUB EAX,0A000
00449AA8 CMP DWORD PTR DS:[49E658],EAX
00449AAE JLE SHORT 00449AE1
00449AB0 MOV ECX,DWORD PTR SS:[ARG.1]
00449AB3 MOV EDX,DWORD PTR DS:[49E654]
00449AB9 CMP EDX,DWORD PTR DS:[ECX+8]
00449ABC JGE SHORT 00449AE1
00449ABE MOV EAX,DWORD PTR SS:[ARG.1]
00449AC1 MOV ECX,DWORD PTR DS:[EAX+8]
00449AC4 SUB ECX,14000
00449ACA CMP DWORD PTR DS:[49E654],ECX
00449AD0 JLE SHORT 00449AE1
00449AD2 MOV EDX,DWORD PTR SS:[ARG.1]
00449AD5 MOV EAX,DWORD PTR DS:[EDX+6C]
00449AD8 ADD EAX,1
00449ADB MOV ECX,DWORD PTR SS:[ARG.1]
00449ADE MOV DWORD PTR DS:[ECX+6C],EAX
00449AE1 JMP SHORT 00449B3A
00449AE3 MOV EDX,DWORD PTR SS:[ARG.1]
00449AE6 MOV EAX,DWORD PTR DS:[EDX+0C]
00449AE9 ADD EAX,0A000
00449AEE CMP DWORD PTR DS:[49E658],EAX
00449AF4 JGE SHORT 00449B3A
00449AF6 MOV ECX,DWORD PTR SS:[ARG.1]
00449AF9 MOV EDX,DWORD PTR DS:[ECX+0C]
00449AFC SUB EDX,0A000
00449B02 CMP DWORD PTR DS:[49E658],EDX
00449B08 JLE SHORT 00449B3A
00449B0A MOV EAX,DWORD PTR SS:[ARG.1]
00449B0D MOV ECX,DWORD PTR DS:[EAX+8]
00449B10 ADD ECX,14000
00449B16 CMP DWORD PTR DS:[49E654],ECX
00449B1C JGE SHORT 00449B3A
00449B1E MOV EDX,DWORD PTR SS:[ARG.1]
00449B21 MOV EAX,DWORD PTR DS:[49E654]
00449B26 CMP EAX,DWORD PTR DS:[EDX+8]
00449B29 JLE SHORT 00449B3A
00449B2B MOV ECX,DWORD PTR SS:[ARG.1]
00449B2E MOV EDX,DWORD PTR DS:[ECX+6C]
00449B31 ADD EDX,1
00449B34 MOV EAX,DWORD PTR SS:[ARG.1]
00449B37 MOV DWORD PTR DS:[EAX+6C],EDX

^ Distance codes:

Spoiler

CPU Disasm
Address Command
00449A8F ADD ECX, 0A000 - How far down
CPU Disasm
Address Command
00449AA3 SUB EAX, 0A000 - How far up
CPU Disasm
Address Command
00449AC4 SUB ECX, 14000 - How far left
CPU Disasm
Address Command
00449AE9 ADD EAX, 0A000 - How far down
CPU Disasm
Address Command
00449AFC SUB EDX, 0A000 - How far up
CPU Disasm
Address Command
00449B10 ADD ECX, 14000 - How far right

BTW, in the Cave Story engine, 1 block = 2,000 units, so A,000 units = 5 blocks and 14,000 units = 10 (dec) blocks.
You may have noticed there were two checks for up and down; another example of Pixel's inefficient code, one is for left, one for right. You don't actually need to check it twice for the same value...

Thanks, can you also tell me where the value for the waiting time is(aka the waiting time between shots), if there's any?

 

Thanks, can you also tell me where the value for the waiting time is(aka the waiting time between shots), if there's any?

0x0449B3D:
CMP DWORD PTR DS:[ECX+6C], 14
^ That 14 is the value you're looking for, the delay between attacks. The lower the amount of delay, the faster the attack rate.

EDIT: Looks like that value can go into negative! Start counting from -100 (dec) or -64 (hex), so if you want it to shoot one every frame, you'd CMP DWORD PTR DS: [ECX+6C], -63

 

How do i change a map's moving style?

 

How do i change a map's moving style?

You mean the scroll type? In CE, go to map properties, then Scroll Type. It's probably the same in BL.

 

You mean the scroll type? In CE, go to map properties, then Scroll Type. It's probably the same in BL.

That just changes how the background scrolls, i meant to change how the maps follows you. Is it not posible?

 

That just changes how the background scrolls, i meant to change how the maps follows you. Is it not posible?

What do you mean?

 

That just changes how the background scrolls, i meant to change how the maps follows you. Is it not posible?

You can't have the background follow you in a special way AND scroll at the same time.
To have the screen follow the player slower, use <FOM0032 or <FOM0064.

 

That just changes how the background scrolls, i meant to change how the maps follows you. Is it not posible?

you can change the speed at which it does with the <FMC command, its usually set to 0016 but can be made faster by setting it to a smaller number and slower to a bigger number. just don't set it to 0000 otherwise it will crash

 

you can change the speed at which it does with the <FMC command, its usually set to 0016 but can be made faster by setting it to a smaller number and slower to a bigger number. just don't set it to 0000 otherwise it will crash

Oh thanks.

 

Hey, I'm not sure if this is the right place to ask this, but what's the best way to find finished cave story mods? The "Quickie guide to the mods section" has some, but I've played them all, and a lot of the unfinished ones I've tried were either REALLY early when they were abandoned, or the links are dead and I can't download them.

 

There's quite a few in the Mod Archive Master List.

Thanks. Looks like still a lot of dead links but with that many I can find some.

 

Can you add sounds, instead of replacing them like with the music?

 

How would I make the walking Shovel Brigade npc change it's sprites based on it's flag id, like in the <MIM command?

 

re-code the npc because it's the path of least resistance.

 

How can I have a background fill the entire screen, no tileing? I assume if I make it the same resolution as what the game runs at, it will, but I don't know the resolution.

 

make the size 320X240

 

How fast in Ctone are the text blips?

 

How fast in Ctone are the text blips?

why not just load them and find out

 

How would I go about adding a background to the Title Screen?