[ot_207]

Crashes server...
Tried it this way in the Ham_TraceAttack forward.

PHP Code:

new text_name[16], text_type[2]
engfunc(EngFunc_TraceTexture, 0, start, end, text_name, charsmax(text_name))
text_type[0] = dllfunc(DllFunc_PM_FindTextureType, text_name) 


My mistake?

[Arkshine]

If I remember you have to do something like :

new Float:Origin[ Coord_e ];
new Float:End   [ Coord_e ];
new TextureType[ 1 ];
new Texture[ 64 ];
            
pev( Player, pev_origin, Origin );
            
End = Origin;
End[ z ] = -8191.0;

engfunc( EngFunc_TraceTexture, pev( Player, pev_groundentity ), Origin, End, Texture, charsmax( Texture ) );
TextureType[ 0 ] = dllfunc  DLLFunc_PM_FindTextureType, Texture );

[ot_207]

Shouldn't you use xs in this situation?

xs_vec_copy(origin, end)?
And, for walls does this work?

[Arkshine]

If the array is the same size, you can do that directly.

No you can't do that on the wall, the trace has to be straight down from you. You don't walk on the wall. :p

[ot_207]

That is why it crashed. I tried doing that on a wall.
Question. is it possible to determine the material of the wall?

[Arkshine]

Don't know :/ Try to walk on the wall and execute the code. :p

[ot_207]

Originally Posted by Arkshine Don't know :/ Try to walk on the wall and execute the code. :p

=)))))))))))))))))))

[Arkshine]

It's weird because in the HLSDK a trace_texture is done after you fire.

[...]
        if (tr.flFraction != 1.0)
        {
            CBaseEntity *pEntity = CBaseEntity::Instance(tr.pHit);

            if ( iDamage )
            {
                pEntity->TraceAttack(pevAttacker, iDamage, vecDir, &tr, DMG_BULLET | ((iDamage > 16) ? DMG_ALWAYSGIB : DMG_NEVERGIB) );
                
                TEXTURETYPE_PlaySound(&tr, vecSrc, vecEnd, iBulletType);
                DecalGunshot( &tr, iBulletType );
            } 
[...]

// play a strike sound based on the texture that was hit by the attack traceline.  VecSrc/VecEnd are the
// original traceline endpoints used by the attacker, iBulletType is the type of bullet that hit the texture.
// returns volume of strike instrument (crowbar) to play

float TEXTURETYPE_PlaySound(TraceResult *ptr,  Vector vecSrc, Vector vecEnd, int iBulletType)
{
// hit the world, try to play sound based on texture material type
    
    char chTextureType;
    float fvol;
    float fvolbar;
    char szbuffer[64];
    const char *pTextureName;
    float rgfl1[3];
    float rgfl2[3];
    char *rgsz[4];
    int cnt;
    float fattn = ATTN_NORM;

    if ( !g_pGameRules->PlayTextureSounds() )
        return 0.0;

    CBaseEntity *pEntity = CBaseEntity::Instance(ptr->pHit);

    chTextureType = 0;

    if (pEntity && pEntity->Classify() != CLASS_NONE && pEntity->Classify() != CLASS_MACHINE)
        // hit body
        chTextureType = CHAR_TEX_FLESH;
    else
    {
        // hit world

        // find texture under strike, get material type

        // copy trace vector into array for trace_texture

        vecSrc.CopyToArray(rgfl1);
        vecEnd.CopyToArray(rgfl2);

        // get texture from entity or world (world is ent(0))
        if (pEntity)
            pTextureName = TRACE_TEXTURE( ENT(pEntity->pev), rgfl1, rgfl2 );
        else
            pTextureName = TRACE_TEXTURE( ENT(0), rgfl1, rgfl2 );
            
        if ( pTextureName )
        {
            // strip leading '-0' or '+0~' or '{' or '!'
            if (*pTextureName == '-' || *pTextureName == '+')
                pTextureName += 2;

            if (*pTextureName == '{' || *pTextureName == '!' || *pTextureName == '~' || *pTextureName == ' ')
                pTextureName++;
            // '}}'
            strcpy(szbuffer, pTextureName);
            szbuffer[CBTEXTURENAMEMAX - 1] = 0;
                
            // ALERT ( at_console, "texture hit: %s\n", szbuffer);

            // get texture type
            chTextureType = TEXTURETYPE_Find(szbuffer); 
        }
    }
[...]

[ot_207]

Then it is a fakemeta error?

Edit:

		// pfnTraceTexture
	case EngFunc_TraceTexture:		// const char *)			(edict_t *pTextureEntity, const float *v1, const float *v2 );
		cRet = MF_GetAmxAddr(amx,params[2]);
		index = cRet[0];
		CHECK_ENTITY(index);
		cRet = MF_GetAmxAddr(amx,params[3]);
		Vec1[0]=amx_ctof(cRet[0]);
		Vec1[1]=amx_ctof(cRet[1]);
		Vec1[2]=amx_ctof(cRet[2]);
		cRet = MF_GetAmxAddr(amx,params[4]);
		Vec2[0]=amx_ctof(cRet[0]);
		Vec2[1]=amx_ctof(cRet[1]);
		Vec2[2]=amx_ctof(cRet[2]);
		temp = (char*)(*g_engfuncs.pfnTraceTexture)(INDEXENT2(index),Vec1,Vec2);
		cRet = MF_GetAmxAddr(amx,params[6]);
		MF_SetAmxString(amx, params[5], temp, cRet[0]);
		return 1;

[Arkshine]

I don't think, and I don't see anything wrong. Plus, it works fine if you do like my code above.

In CBaseEntity *pEntity = CBaseEntity::Instance(ptr->pHit);

Instance() returns pent->pvPrivateData; and as comment we can read :

void* pvPrivateData; // Alloced and freed by engine, used by DLLs

get_tr2() will return -1 if not there is not hit. I'm not pro at all but I was wondering if the wall is not attributed with a specific index managed by the engine and ptr->pHit would not return 0 in this case. Anyway I really don't know why it crashes. :/