FindGroundZFromPoint

/* FindGroundZFromPoint(Vector const&, Vector const&) */

longdouble FindGroundZFromPoint(Vector *param_1,Vector *param_2)

{
  char cVar1;
  float fVar2;
  float fVar3;
  float local_38;
  float local_34;
  float local_2c;
  float local_28;
  float local_24;
  float local_20;
  
  fVar3 = *(float *)param_1;
  fVar2 = *(float *)(param_1 + 4);
  if (ABS(fVar3 - *(float *)param_2) <= ABS(fVar2 - *(float *)(param_2 + 4))) {
    if (fVar2 < *(float *)(param_2 + 4)) {
      local_34 = -25.0;
      local_38 = 0.0;
    }
    else {
      local_34 = 25.0;
      local_38 = 0.0;
    }
  }
  else {
    local_34 = 0.0;
    if (*(float *)param_2 <= fVar3) {
      local_38 = 25.0;
    }
    else {
      local_38 = -25.0;
    }
  }
  local_28 = *(float *)param_2;
  local_24 = *(float *)(param_2 + 4);
  local_2c = *(float *)(param_2 + 8);
  while (local_2c = local_2c + 18.0, local_20 = local_2c,
        25.0 < SQRT((local_24 - fVar2) * (local_24 - fVar2) +
                    (local_28 - fVar3) * (local_28 - fVar3))) {
    local_28 = local_28 + local_38;
    local_24 = local_24 + local_34;
    cVar1 = CNavMesh::GetGroundHeight(TheNavMesh,(Vector *)&local_28,&local_2c,(Vector *)0x0);
    if (cVar1 == '\0') {
      local_2c = local_20 - 18.0;
    }
    fVar3 = *(float *)param_1;
    fVar2 = *(float *)(param_1 + 4);
  }
  local_28 = fVar3;
  local_24 = fVar2;
  cVar1 = CNavMesh::GetGroundHeight(TheNavMesh,(Vector *)&local_28,&local_2c,(Vector *)0x0);
  if (cVar1 == '\0') {
    local_2c = local_20 - 18.0;
  }
  return (longdouble)local_2c;
}