setStance() possible?

[filthy_freak_]

I'v spent the past 5 hours trying to figure out if it's possible to change a player stance using libcod without any luck.

Is it even possible to do? Or is it a client-side only?

[kung foo man]

Did you try to "reverse" the function? Never tested that, but could work.

Otherwise you could do exexclientcommand("gocrouch") for example.

http://killtube.org/showthread.php?1...boobs-quot-%29

[filthy_freak_]

Did you try to "reverse" the function? Never tested that, but could work.

Not sure what you mean here.

Otherwise you could do exexclientcommand("gocrouch") for example.

Won't work for bots.

[kung foo man]

Reading from the address (https://github.com/kungfooman/libcod...layer.cpp#L331)

		void gsc_player_stance_get(int id) {
    int entity = gentities + id * gentities_size;
    unsigned char *stance_address = (unsigned char *)(entity + 8);
    int code = *stance_address & 0x0F; // just the last 4 bits tell the state

    char *stance = "";
    switch (code) {
        case  0: stance = "stand"; break; // also in spec
        case  2: stance = "stand"; break;
        case  4: stance = "duck"; break;
        case  6: stance = "duck"; break;
        case  8: stance = "lie"; break;
        case 10: stance = "lie"; break;
        default: printf("unknown stance for player id=%d, code=%d\n", id, code);
    }

    stackPushString(stance);
} 
	

Writing to the address (untested):

		void gsc_player_stance_set(int id) {
    char *stance;
    if ( ! stackGetParams("s", &stance)) {
        printf("scriptengine> ERROR: gsc_player_stance_set(): param \"stance\" has to be a string!\n");
        stackPushUndefined();
        return;
    }
    int entity = gentities + id * gentities_size;
    unsigned char *stance_address = (unsigned char *)(entity + 8);
    if ( ! strcmp(stance, "stand"))
        *stance_address |= 0x00; // maybe 0x02
    if ( ! strcmp(stance, "duck"))
        *stance_address |= 0x04; // maybe 0x06
    if ( ! strcmp(stance, "lie"))
        *stance_address |= 0x08; // maybe 0x0a
    stackPushUndefined();
} 
	

[filthy_freak_]

Reading from the address (https://github.com/kungfooman/libcod...layer.cpp#L331)

		void gsc_player_stance_get(int id) {
    int entity = gentities + id * gentities_size;
    unsigned char *stance_address = (unsigned char *)(entity + 8);
    int code = *stance_address & 0x0F; // just the last 4 bits tell the state

    char *stance = "";
    switch (code) {
        case  0: stance = "stand"; break; // also in spec
        case  2: stance = "stand"; break;
        case  4: stance = "duck"; break;
        case  6: stance = "duck"; break;
        case  8: stance = "lie"; break;
        case 10: stance = "lie"; break;
        default: printf("unknown stance for player id=%d, code=%d\n", id, code);
    }

    stackPushString(stance);
} 
	

Writing to the address (untested):

		void gsc_player_stance_set(int id) {
    char *stance;
    if ( ! stackGetParams("s", &stance)) {
        printf("scriptengine> ERROR: gsc_player_stance_set(): param \"stance\" has to be a string!\n");
        stackPushUndefined();
        return;
    }
    int entity = gentities + id * gentities_size;
    unsigned char *stance_address = (unsigned char *)(entity + 8);
    if ( ! strcmp(stance, "stand"))
        *stance_address |= 0x00; // maybe 0x02
    if ( ! strcmp(stance, "duck"))
        *stance_address |= 0x04; // maybe 0x06
    if ( ! strcmp(stance, "lie"))
        *stance_address |= 0x08; // maybe 0x0a
    stackPushUndefined();
} 
	

Oh yeah tried that but it didn't do anything.

Also decompiled allowstand/allowcrouch/allowprone (With some help) and came up with this;

		int* test = (int*)((*(int*)(gentities + id * gentities_size + 344)) + 12);
*test = *test | 0x800001; //80001 = prone I believe. 
	

Which does have some effect on the stance but seems to get overridden (Player starts prone animation for a split second before it will cancel).

[Mitch]

Maybe you need to add the code below after you set it.

		*(int *)(state + 216) = 11; 
	

Like the melee first bash bug.
https://github.com/M-itch/libcod/com...a4f6d86ac2ce74

[filthy_freak_]

Still same problems.

Here is the output i get before & after setting stance_address;

		stance_address = 0 //currently standing
stance_address = 4 //set to crouch
stance_address = 0 //reverted back to standing
stance_address = 4 //rinse and repeat 
	

Also for the "test" variable, it seems to do the weird split second animation no matter what I set it to which makes me think its not going to be helpful despite being related to player stance.

[kung foo man]

Did you actually try my version and tested the other "maybe-values"? Only 4 bits define the state, maybe the other 4 bits cause the problem, hence the xor-assignment.

You can also try to breakpoint on the "write" of that address: http://stackoverflow.com/questions/5...-access-in-gdb

So you can trace back which function resets the value.

[filthy_freak_]

Hmm, just had a thought of another way to do it.

Currently meatbot makes the bot play the stand/crouch/prone animation when it shoots their gun. This can only be done via mp/playeranim.script

So maybe it could be possible to make a libcod function that sets the players current animation using gsc? Could be useful for many things other than bot stances.

Example;

		if(player.isSprinting)
    player setAnimation("pb_sprint");
else
    player setAnimation("none"); //reset back to default/reset back to mp/playeranim.script 
	

Having a quick look, setting g_dumpAnims will report current animations being played so that is a start.

[filthy_freak_]

After doing a bit more research, I have discovered that if you hook bg_playeranimation (sub_80D82A4 on 1.0) and make it return 0, it does have some sort of effect on animations. However only if sv_cheats/devmap is enabled.