CNavArea::ComputeNormal

/* CNavArea::ComputeNormal(Vector*, bool) const */

void __thiscall CNavArea::ComputeNormal(CNavArea *this,Vector *param_1,bool param_2)

{
  float fVar1;
  float fVar2;
  float fVar3;
  float fVar4;
  
  if (param_1 != (Vector *)0x0) {
    if (param_2) {
      fVar4 = *(float *)(this + 0x28) - *(float *)(this + 0x18);
      fVar2 = *(float *)(this + 4) - *(float *)(this + 0x10);
      fVar1 = *(float *)(this + 8) - *(float *)(this + 0x14);
      fVar3 = *(float *)(this + 0x24) - *(float *)(this + 0x18);
    }
    else {
      fVar4 = *(float *)(this + 0x24) - *(float *)(this + 0xc);
      fVar2 = *(float *)(this + 0x10) - *(float *)(this + 4);
      fVar1 = *(float *)(this + 0x14) - *(float *)(this + 8);
      fVar3 = *(float *)(this + 0x28) - *(float *)(this + 0xc);
    }
    *(float *)param_1 = -(fVar4 * fVar1);
    *(float *)(param_1 + 4) = -(fVar3 * fVar2);
    *(float *)(param_1 + 8) = fVar1 * fVar2;
    VectorNormalize(param_1);
  }
  return;
}