CEnvMicrophone::CanHearSound

/* CEnvMicrophone::CanHearSound(int, soundlevel_t, float&, Vector const*) */

bool __thiscall
CEnvMicrophone::CanHearSound
          (CEnvMicrophone *this,uint param_1,int param_3,float *param_4,float *param_5)

{
  byte *pbVar1;
  int *piVar2;
  uint uVar3;
  char cVar4;
  CBaseEntity *pCVar5;
  float *pfVar6;
  undefined *puVar7;
  byte *pbVar8;
  CBaseEntity *this_00;
  longdouble lVar9;
  float fVar10;
  float fVar11;
  float fVar12;
  
  if (this[0x440] == (CEnvMicrophone)0x0) {
    if ((((byte)this[0x148] & 0x40) != 0) && (param_3 == 0)) {
      return false;
    }
    if (param_1 == 0) {
LAB_00688350:
      pCVar5 = (CBaseEntity *)0x0;
    }
    else {
      pbVar1 = *(byte **)(gpGlobals + 0x58);
      if (0x7ff < param_1) {
        if (pbVar1 != (byte *)0x0) {
LAB_00688344:
          pbVar8 = pbVar1;
          if ((*pbVar1 & 2) == 0) goto LAB_006882f9;
        }
        goto LAB_00688350;
      }
      if (pbVar1 == (byte *)0x0) goto LAB_00688350;
      pbVar8 = pbVar1 + param_1 * 0x10;
      if ((pbVar1[param_1 * 0x10] & 2) != 0) goto LAB_00688344;
LAB_006882f9:
      piVar2 = *(int **)(pbVar8 + 0xc);
      if (piVar2 == (int *)0x0) goto LAB_00688350;
      pCVar5 = (CBaseEntity *)(**(code **)(*piVar2 + 0x18))(piVar2);
    }
    uVar3 = *(uint *)(this + 0x46c);
    if ((((uVar3 == 0xffffffff) ||
         (puVar7 = g_pEntityList + (uVar3 & 0xfff) * 0x10, puVar7 == (undefined *)0xfffffffc)) ||
        (*(uint *)(puVar7 + 8) != uVar3 >> 0xc)) ||
       (*(CBaseFilter **)(puVar7 + 4) == (CBaseFilter *)0x0)) {
      if (param_5 != (float *)0x0) {
LAB_00688393:
        uVar3 = *(uint *)(this + 0x444);
        pCVar5 = (CBaseEntity *)0x0;
        if (((uVar3 != 0xffffffff) &&
            (puVar7 = g_pEntityList + (uVar3 & 0xfff) * 0x10, puVar7 != (undefined *)0xfffffffc)) &&
           (*(uint *)(puVar7 + 8) == uVar3 >> 0xc)) {
          pCVar5 = *(CBaseEntity **)(puVar7 + 4);
        }
        if (((byte)pCVar5[0x14d] & 8) != 0) {
          CBaseEntity::CalcAbsolutePosition(pCVar5);
        }
        fVar12 = *param_5 - *(float *)(pCVar5 + 0x2e0);
        fVar11 = param_5[1] - *(float *)(pCVar5 + 0x2e4);
        fVar10 = param_5[2] - *(float *)(pCVar5 + 0x2e8);
        goto LAB_006883f6;
      }
      if (pCVar5 != (CBaseEntity *)0x0) goto LAB_006884f3;
      fVar10 = 0.0;
    }
    else {
      if ((pCVar5 == (CBaseEntity *)0x0) ||
         (cVar4 = CBaseFilter::PassesFilter
                            (*(CBaseFilter **)(puVar7 + 4),(CBaseEntity *)this,pCVar5),
         cVar4 == '\0')) goto LAB_00688310;
      if (param_5 != (float *)0x0) goto LAB_00688393;
LAB_006884f3:
      uVar3 = *(uint *)(this + 0x444);
      this_00 = (CBaseEntity *)0x0;
      if (((uVar3 != 0xffffffff) &&
          (puVar7 = g_pEntityList + (uVar3 & 0xfff) * 0x10, puVar7 != (undefined *)0xfffffffc)) &&
         (*(uint *)(puVar7 + 8) == uVar3 >> 0xc)) {
        this_00 = *(CBaseEntity **)(puVar7 + 4);
      }
      if (((byte)this_00[0x14d] & 8) != 0) {
        CBaseEntity::CalcAbsolutePosition(this_00);
      }
      pfVar6 = (float *)(**(code **)(*(int *)pCVar5 + 0x288))(pCVar5);
      fVar11 = *pfVar6 - *(float *)(this_00 + 0x2e0);
      fVar10 = pfVar6[1] - *(float *)(this_00 + 0x2e4);
      fVar12 = pfVar6[2] - *(float *)(this_00 + 0x2e8);
LAB_006883f6:
      fVar10 = SQRT(fVar10 * fVar10 + fVar12 * fVar12 + fVar11 * fVar11);
    }
    if ((*(float *)(this + 0x454) == 0.0) || (fVar10 <= *(float *)(this + 0x454))) {
      lVar9 = (longdouble)(**(code **)(*enginesound + 0x34))(enginesound,param_3,fVar10);
      fVar10 = *param_4;
      *param_4 = (float)lVar9 * fVar10;
      return 0.0 < (float)lVar9 * fVar10;
    }
  }
  else {
LAB_00688310:
    *param_4 = 0.0;
  }
  return false;
}