CRopeKeyframe::ActivateStartDirectionConstraints

/* CRopeKeyframe::ActivateStartDirectionConstraints(bool) */

void __thiscall CRopeKeyframe::ActivateStartDirectionConstraints(CRopeKeyframe *this,bool param_1)

{
  CRopeKeyframe CVar1;
  uint uVar2;
  CBaseEdict *this_00;
  int iVar3;
  uint uVar4;
  
  uVar2 = *(uint *)(this + 0x474);
  if (param_1) {
    uVar4 = uVar2 | 4;
    if (uVar2 == uVar4) {
      return;
    }
    CVar1 = this[0x6c];
  }
  else {
    uVar4 = uVar2 & 0xfffffffb;
    if (uVar2 == uVar4) {
      return;
    }
    CVar1 = this[0x6c];
  }
  if (CVar1 == (CRopeKeyframe)0x0) {
    this_00 = *(CBaseEdict **)(this + 0x30);
    if (this_00 != (CBaseEdict *)0x0) {
      *(uint *)this_00 = *(uint *)this_00 | 0x101;
      iVar3 = CBaseEdict::GetChangeAccessor(this_00);
      *(undefined2 *)(iVar3 + 2) = 0;
    }
  }
  else {
    this[0x70] = (CRopeKeyframe)((byte)this[0x70] | 1);
  }
  *(uint *)(this + 0x474) = uVar4;
  return;
}