SET_BIT and CLEAR_BIT

[jedijosh920]

Does anyone know how these work?

[mockba.the.borg]

Yup ... they set (or clear) bits on an integer value ... for example:

 

If you set N = 0

Then set bit 3 of N to 1, N value becomes 8.

Because: N = 1000 = 8

Then set bit 1 of N to 1 and N value becomes 10.

Because: N = 1010 = 10

 

Got it?

 

Cheers,

Mockba.

[jedijosh920]

Thanks for the explanation! Do you know why Rockstar uses these natives, is it to offset something? Because in the decompiled scripts I remember seeing the player ID as a parameter sometimes. And do these do anything? Thanks again.

[unknown modder]

Thanks for the explanation! Do you know why Rockstar uses these natives, is it to offset something? Because in the decompiled scripts I remember seeing the player ID as a parameter sometimes. And do these do anything? Thanks again.

They use it to store bools in the scripts. without it each bool would take up 4 bytes, now they can fit 32 bools into each 4 byte item

[mockba.the.borg]

Hi Jedi,

 

Maybe what you saw was the BIT_SET being used on an array variable to which the PLAYER_ID is the index. Like this example on carmod_shop:

GAMEPLAY::SET_BIT(&l_71[PLAYER::PLAYER_ID()/*4*/]._f3, 1);

You see, l_71 is a local array of structs, and field 3 seems to be a bitmapped value.

May the force be with you,

Mockba.