CFuncElevator::IsPlayerOnElevator

/* CFuncElevator::IsPlayerOnElevator(CBasePlayer*) */

undefined4 __thiscall CFuncElevator::IsPlayerOnElevator(CFuncElevator *this,CBasePlayer *param_1)

{
  int *piVar1;
  uint uVar2;
  undefined4 uVar3;
  CFuncElevator *pCVar4;
  CFuncElevator *pCVar5;
  CFuncElevator *pCVar6;
  undefined *puVar7;
  
  uVar3 = (**(code **)(*(int *)param_1 + 300))(param_1);
  if (((char)uVar3 == '\0') ||
     (pCVar4 = (CFuncElevator *)CBaseEntity::GetGroundEntity((CBaseEntity *)param_1),
     pCVar4 == (CFuncElevator *)0x0)) {
    uVar3 = 0;
  }
  else if (pCVar4 != this) {
    uVar2 = *(uint *)(pCVar4 + 0x180);
    pCVar5 = (CFuncElevator *)0x0;
    if (((uVar2 != 0xffffffff) &&
        (puVar7 = g_pEntityList + (uVar2 & 0xfff) * 0x10, puVar7 != (undefined *)0xfffffffc)) &&
       (*(uint *)(puVar7 + 8) == uVar2 >> 0xc)) {
      pCVar5 = *(CFuncElevator **)(puVar7 + 4);
    }
    piVar1 = (int *)(g_pEntityList + (uVar2 & 0xfff) * 0x10 + 4);
    do {
      pCVar6 = pCVar5;
      if (((pCVar6 == (CFuncElevator *)0x0) || (uVar2 == 0xffffffff)) ||
         ((piVar1 == (int *)0x0 ||
          ((piVar1[1] != uVar2 >> 0xc ||
           (pCVar5 = (CFuncElevator *)*piVar1, pCVar5 == (CFuncElevator *)0x0)))))) break;
    } while (pCVar6 != pCVar5);
    if (this != pCVar6) {
      uVar2 = *(uint *)(pCVar4 + 0x188);
      pCVar4 = (CFuncElevator *)0x0;
      if (((uVar2 != 0xffffffff) &&
          (puVar7 = g_pEntityList + (uVar2 & 0xfff) * 0x10, puVar7 != (undefined *)0xfffffffc)) &&
         (*(uint *)(puVar7 + 8) == uVar2 >> 0xc)) {
        pCVar4 = *(CFuncElevator **)(puVar7 + 4);
      }
      piVar1 = (int *)(g_pEntityList + (uVar2 & 0xfff) * 0x10 + 4);
      while ((pCVar5 = pCVar4, pCVar5 != (CFuncElevator *)0x0 && (uVar2 != 0xffffffff))) {
        if (((piVar1 == (int *)0x0) ||
            ((piVar1[1] != uVar2 >> 0xc ||
             (pCVar4 = (CFuncElevator *)*piVar1, pCVar4 == (CFuncElevator *)0x0)))) ||
           (pCVar5 == pCVar4)) break;
      }
      return CONCAT31((uint3)(uVar2 >> 0x14),this == pCVar5);
    }
  }
  return uVar3;
}