[Solved] How to hook SetModel using Orpheu

Natsheh · **Author**

As the title says how do i hook setting entity model or FM_SetModel through Orpheu i tried searching for the signature in cs.so but I've failed.

**HamletEagle** · *Last edited by HamletEagle; 10-21-2021 at 10:30.*

pfnSetModel is an engine function, not present in cs.so
Also, since this function is exported, you do not need a signature.

You can check how it is done here(https://forums.alliedmods.net/showthread.php?t=259880) to hook pfnPrecache* and do the same for pfnSetModel. This is the info you need to build the proper file: https://github.com/alliedmodders/hls.../eiface.h#L111

Natsheh · *Last edited by Natsheh; 10-21-2021 at 11:07.*

Thanks alot i didn't know it was an engine function, doesn't engine functions require signatures?

Edit : oh nvm, now i see it needs only function arguments and return definitions

Code:

{
    "name" : "PrecacheModel",
    "library" : "engine",
    "arguments" :
    [
        {
            "type" : "char *"
        }
    ],
    "return" :
    {
        "type" : "int"
    }
}

**HamletEagle** · *Last edited by HamletEagle; 10-21-2021 at 12:57.*

Yes, they do not need signatures because they are exported for use. You only need the name(as stated in the link I sent you for eiface.h), arguments and return value.

Natsheh · *Last edited by Natsheh; 10-21-2021 at 17:07.*

Quote:

Originally Posted by HamletEagle

Yes, they do not need signatures because they are exported for use. You only need the name(as stated in the link I sent you for eiface.h), arguments and return value.

A problem, argument edict_t is not defined in orpheu how i can define it?

**HamletEagle** · 10-22-2021 , 03:00 Re: How to hook CBaseEntity SetModel using Orpheu

edict_s

Natsheh · 10-22-2021 , 04:03 Re: How to hook CBaseEntity SetModel using Orpheu

Quote:

Originally Posted by HamletEagle

edict_s

What is the difference?

**HamletEagle** · *Last edited by HamletEagle; 10-22-2021 at 06:13.*

No difference. edict means entity dictionary, it contains data about entities that are networked to the client.
"s" means structure so "entity dictionary structure". This struct is defined here: https://github.com/alliedmodders/hls...ne/edict.h#L19 (think of it like "enum" in pawn).

"t" in edict_t comes from "type". edict_t is an "alias" of "struct edict_s". https://github.com/dreamstalker/rehl...n/const.h#L786

In C, when you declare a structure and want to use it as a data type, you have to specify "struct struct_name" everywhere, which gets annoying. It is a common practice to define a type like "edict_t" which is a synonym of "struct edict_s". It is cleaner and shorter.

tl;dr

Code:

struct edict_s* my_var;
edict_t *my_other_var;

these are equivalent

Natsheh · 10-22-2021 , 06:14 Re: How to hook CBaseEntity SetModel using Orpheu

You're amazing thanks for the explanation.