LightDesc_t::DistanceAtWhichBrightnessIsLessThan

/* LightDesc_t::DistanceAtWhichBrightnessIsLessThan(float) const */

longdouble __thiscall
LightDesc_t::DistanceAtWhichBrightnessIsLessThan(LightDesc_t *this,float param_1)

{
  char cVar1;
  float fVar2;
  float fVar3;
  float local_14;
  float local_10 [3];
  
  fVar2 = SQRT(*(float *)(this + 0xc) * *(float *)(this + 0xc) +
               *(float *)(this + 4) * *(float *)(this + 4) +
               *(float *)(this + 8) * *(float *)(this + 8));
  fVar3 = 0.0;
  if (0.0 < fVar2) {
    fVar2 = param_1 / fVar2;
    cVar1 = SolveQuadratic(fVar2 * *(float *)(this + 0x38),*(float *)(this + 0x34) * fVar2,
                           fVar2 * *(float *)(this + 0x30) - 1.0,&local_14,local_10);
    fVar3 = 0.0;
    if (cVar1 != '\0') {
      fVar2 = local_14;
      if (local_14 <= local_10[0]) {
        fVar2 = local_10[0];
      }
      if ((0.0 <= fVar2) && (fVar3 = local_10[0], local_10[0] <= local_14)) {
        fVar3 = local_14;
      }
    }
  }
  return (longdouble)fVar3;
}