for some reason gml_Object_obj_mainchara_ch1_Draw_0 in deltarune 1.15 and gml_Object_obj_mainchara_Draw_0 in SURVEY_PROGRAM decompiles differently

[H-A-M-G-E-R]

Describe the bug

in 1.15 there's <<'s that shouldn't be there

Reproducing steps

decompile both of them

Setup Details

version 0.5.1.0 (the decompiler isn't updated in 2 months...)

[Jacky720]

Not a bug. Enums in GMS2.3+ (the Chapter 2 version) compile incompletely, retaining the << 0 you're seeing. << means "bitshift left", that is, turning 1 into 2 or 2 into 4... but because it's a 0, it makes no change to the actual value.

I guess it would be possible to make some kind of nonfunctional enum marker in the decompiler... but it wouldn't really affect anything.

[H-A-M-G-E-R]

also there's new instructions in the assembly in chapter 2 that aren't seen in survey_program

[Jacky720]

Yes, those instructions indicate the presence of enums.

[H-A-M-G-E-R]

see line 362 of UndertaleModLib/Decompiler/Decompiler.cs

[H-A-M-G-E-R]

one instruction is conv.b.v

[Jacky720]

That's because GameMaker added a boolean format, even though it basically still acts like an integer. The decompiler doesn't properly process that, pretty much ignores it in fact, but... there is no UTMT bug here. This is just stuff that changed in the game.

[H-A-M-G-E-R]

that's because i'm using the wrong compiler

[Jacky720]

Not a bug.