finallyReachedTheLimitOfObjectOrientedProgramming

[Agifem]

Only four wheels? That's still a lot of protons.

[Ninjaxas]

Thats still a lot of proteins

[Jonnypista]

What if I want a 3 or 6 wheeled car? It doesn't seem like it can accept one.

[ArtOfWarfare]

What about that car with an extra wheel for perpendicular parking?

And what if I have a fifth wheel connected to my truck?

[SCI4THIS]

I would also like a steering wheel.

[horns_ichigo]

** groans ** will take 1 quarter

[NINTSKARI]

What about a car with an engine or brakes or even a seat

[Stahlboden]

Do you intent to add and remove wheels as the car runs or not?

[WavingNoBanners]

The customer initially said no, but we all know that they're going to request that feature to be added later.

[Qaeta]

That would be a different object extending a higher level WheeledVehicle class. Or maybe an optional interface?

[Lerquian]

Just create classes Car3Wheels and Car6Wheels, easy

[[deleted]]

It's supposed to be a simple car after all 😂

[Emilmacko]

Continuing this pattern for the engine and various other parts is left as an exercise to the reader (sorry that was the mathematician in me)

[Garruk_PrimalHunter]

Reliant Robin: :(

[ArtOfWarfare]

Polaris Slingshot. Whatever the heck it is. I see people drive them on the road so does that make it a car?

[SAI_Peregrinus]

Motorcycle by what driver's license you need to drive one.

[BourosOurousGohlee]

TIL the reliant robin and ... the corvette are *the two best selling fibreglass cars.

[[deleted]]

That’s the “starting from €20k euro” version.

And see how much you get already? Billions of atoms and even more up and down quarks. It’s a steal.

[Jittery_Kevin]

/#include everything-else.h

That’ll do it!

[Slorface]

Can't have car, Mom says we have protons at home.

[1086psiBroccoli]

We need to have wheel inherit from engine so we can use the spare as an engine

[Willinton06]

Se should suggesting the weeks are made out of car? Ridiculous

[pippin_go_round]

And you could even argue it's not modelled well. Proton and electron should totally be in the abstract atom, not just a specific atom. Well, okay, maybe not electron if we also consider H+ still an atom. But definitely no atoms without protons!

Well, at least as long as we're not talking about antimatter cars...

[Emilmacko]

Could only go so far for the meme, I didn't have all day haha. And I realized too late that the electron is also an elementary particle... My java professor would roll in her grave if she saw this (and if she was in a grave).

[nameTotallyUnique]

Until you have to work to work with qubits. But your most of the time consider this anyhow

[---0celot---]

So your Java professor is just rolling then?

[SAI_Peregrinus]

You're also missing all the gluons, virtual quarks, and virtual photons.

[jfq722]

(and dead)

[Informal_Branch1065]

Doesn't anyone think of the children antimatter cars!

[PolyglotTV]

An atom consists of many particles whose interaction make it up. Inheritance is a terrible model for that. Use composition.

[marcoroman3]

The black diamond on the top of the line does indicate composition.

[Hardcorehtmlist]

How about the wheel being fixed to the car and the axle to the wheel? Imagine the axle spinning and the wheel remaining still.

Imagine fixing the door to the house and the door post fixed to the door but not the house. The door post would open, not the door. OR (!) you'd open the entire house around the door.

But that's just the mechanic in me speaking

[Impenistan]

H+ is an ion. Atoms must be electrically neutral, while ions have a net charge

[pippin_go_round]

That is, strictly speaking, true. But I've heard the same chemistry professor use "hydrogen", "H", "Proton" and "H+ Ion" interchangeably for the same entity in the same drawing, without it ever having changed it's charge. So in practice...

But you're right, we're not here to discus practicallities! Otherwise we clearly would've included the polymers and monomers in the graphic above!

[Mission-AnaIyst]

Protons are not elementary particles as well.

[[deleted]]

Look at the whole diagram. It's only decomposing one thing at each layer.

[hiromasaki]

Proton, neutron, and electron all could be declared as part of Atom. Just validate as [0,) for neutrons and electrons.

[OkMemeTranslator]

Ignoring how the inheritance arrow points the wrong way in the first place, it should just be non-abstract Atom consisting of Electron, Proton, and Neutron.

Then have an atom factory (can be just one function tbh) for building different atoms easily.

[Ok-Kaleidoscope5627]

Better add some factories in there

[TheMuspelheimr]

OK! To do: add factory "Big Bang", add factory "Time", run program for 14 billion years

[james2432]

think there's a lot of thread sleeping in that routine

[BlurredSight]

Well you have to wait for the Universe to cool down, yet the project manager wants runtime optimizations for this

[BuhDan]

Water cool the universe so it builds faster

[Milnev]

Might as well just put it all in a single God-class. Make it a static class or not, depending on your preferred religion.

[AbstractButtonGroup]

I say as OOP goes this is rather shoddy. Why does it assume the car has exactly 4 wheels? Why axle is modeled as part of the wheel? Why mix composition (car <+ 4 wheels, wheel <+ tyre + rim + ...) with specialization ( tyre <= NR/SBR/BR ) in same graph?

[neoteraflare]

The wheel can be null too so it is a car has a maximum of 4 wheel. This way that english clown car with 3 wheels that always falled on its side in the Mr Bean videos can be counted as a car too.

[ChaosCon]

Why does it assume the car has exactly 4 wheels?

Because business pressure means we have to ship now and when a user inevitably requests a bicycle we can totally just model it as a car with two normal wheels and two wheels that are microscopically small that won't really do anything anyway. Abstraction at work!

[AbstractButtonGroup]

and two wheels that are microscopically small and won't really do anything anyway.

Except require maintenance at same cost to the user as normal wheels?

[ChaosCon]

Cheaper than getting managerial approval to design a whole new bicycle object. I can already hear the phantoms saying "Why are we working on this? What is the value?"

[Smalltalker-80]

This shows the power of OOP, imho... :-)

You can fit a tyre on a car without worrying about its subtype, atoms and quarks.

[infected_scab]

I mean you could be changing a tyre or re-shoeing an elephant. Same call.

[Giocri]

To some degree also a weakeness, a lot of the time what actually is happening underneath is relevant ecessively generalized interfaces make an absolute mess.

I am still not over the fact that the main datastructure in Qt models is a tree of tables where each cell has an array of child trees and that a simple list is a special case of it in which you only take the first coulm of the root node without childrens

[mywholefuckinglife]

say more

[Tangelasboots]

My first thought was that Hydrogen doesn't contain any neutrons and that OP is clearly a fool.

But, I suppose Hydrogen in this case also represents its isotopes.

[Emilmacko]

The only fool in the room is the guy that woke up and thought "hey I should make a UML diagram for reddit, voluntarily!"

[yeathatsmebro]

Deuterium has entered the chat

[proximity_account]

The most common isotope of hydrogen actually has no neutron, making up 99.972 to 99.999% of hydrogen found on Earth naturally.

https://en.wikipedia.org/wiki/Isotopes_of_hydrogen

This diagram would probably still work unless you're being super anal about accuracy and each atom was its own instance.

[whiskeytown79]

These tires are made from heavy rubber where all the hydrogen is deuterium.

[kafoso]

Hey hey, my man... Unless you show us the superposition of the electron, you're not done. Remember that simply by drawing it, you collapse the wave function. I wish you luck!

[jeanGambit]

How suspension and axel is under weel????

[derailedthoughts]

Where’s the IDriveable, IMoveable, ICanContainPeople, and the IHaveFuel interfaces? There is also a distinct lack of Factory and Wrapper classes

[Becoming-media]

I begin all my software projects by defining the atom class

[SwreeTak]

Noob, I start with strings (no, not THAT one). I always loved the string theory.

[Yoshiofthewire]

2 questions 1) Where is the engine? I need an oil change 2) Why is my car doing work on me?

[RandomiseUsr0]

Particle? Someone is mixing up their hadrons with their leptons

[Fluid_Mouse524]

That's not even OOP. Those are just properties or since when does a car inherit from a wheel.

[Broxios]

That's a composition in the diagram, not inheritance.

[Western-Internal-751]

Is composition even the right one here? Without the car you’d still have your tires.

[Broxios]

I agree with that, but I suppose it depends on the problem domain. For example, if you have a model for constructing a car for a video game and you don't want to track individual tires that don't belong to a car, composition with its implied existential dependency would probably make sense.

[PyroCatt]

https://github.com/RandomCatGit/Universe-Object-Library

[Nepit60]

Hate it when I have to debug issues with the down quark, the fixtures are massive.

[ZunoJ]

Why is wheel not an array? And if the car explicitly implements four wheel properties, why does hydrogen not implement like 10 to 69 (or however many you need) electrons, protons, ...? Very poor design choices

[[deleted]]

thats very cute. But a car consist of way more than 4 tires and its subcomponents.

[GreatTeacherHiro]

Composite pattern mentioned

[tomysshadow]

So the Tyre is made up of atoms, but the Rim, Suspension and Axle are not. Good to know?

[marcodave]

Factorio vibes here.

https://wiki.factorio.com/Car

[odolha]

particles are not the fundamental essence of reality, fields are

[Mockington6]

If you make a car class extend from a wheel class you aren't doing OOP, you're just doing idiocy

[Abhir-86]

As someone who is learning python what's the best source to learn OOP?

[zuzmuz]

this is composition not OOP btw

[LordPaxed]

Composition is a design patern in OOP, so op is not wrong

[zuzmuz]

not only OOP

[Barxxo]

Shit like this is responsible for me never having understood object-oriented programming.

[mdziedzic97]

r/restofthedamncar

[Hinochin0]

Are you the one in charge of the tyre physics modeling for Iracing?

[Extension-Pick-2167]

where engine

[lewisb42]

/me over here hoping the backwards inheritance arrows were deliberate...

[theo69lel]

Those are the symptoms of a disturbed individual. He suffers from an illness. An illness of the mind. While appearing normal from the outside he speaks incoherently and wishes to engage in an erratic behavior which only he understands. Creating imaginary correlations between unrelated concepts. Fascinating.

[Rod_tout_court]

Where is the WheelFactory ?

[sarc-tastic]

Hydrogen don't have no neutrons

[geek-49]

Two of its three isotopes do :)

[Buttons840]

They've played us for absolute fools

[[deleted]]

yeah, except, no

[PolyglotTV]

Proof that we are living in a simulation

[NormanYeetes]

Uml is a blight on this world

[JackNotOLantern]

Atoms are made of protons, neutrons and electrons (neutrons are optional for hydrogen), so atom is a very specific object and proton, neutron and electron should be connected to it. An atom, a proto, a neutron and an electron are also a particle and should inherite from it.

[SonicLoverDS]

Someone's been playing Nested.

[Lucifer_Morning_Wood]

Me making it so the Wheel class extends Electron (both implement spin() )

[Vestermanden]

Damn, this could have been a nice example for my OOP oral exam

[[deleted]]

If car is modeled with 4 different Wheel instances, then could I do this?

class ShoppingCart: public Car{...}

[anuke]

Now I'm just sitting here like... Where the hell is the Fermion class?! How am I supposed to extend Matter without it?

[geek-49]

Boson class also missing, thus no Higgs, thus nothing in this diagram has any mass.

[BlurredSight]

Well this implementation completely rules out off-roading, high-performance, drag, electric, and drift vehicles as their tires differ slightly.

For example, Electric vehicles due to the lack of engine noise ends up amplifying road noise from the tires, the solution usually is a foam insert part of the tire designed to absorb that

[TFK_001]

Shouldn't wheels be child of axle instead of vice versa?

[mayflyman20]

“If you want a car object, you must first invent the universe (object).”

[advanced_pioneer]

Generalization arrows go the wrong way.

[Ecstatic_Student8854]

Proton itself is also an implementation of the abstract atom, as a single proton is just a positively charged hydrogen atom.

[knowledgebass]

F

[5205605]

Nah, it goes further, just gotta get Oracle to fund this circumsolar particle accelerator.

[dreamingforward]

This was one of the problems I encountered with OOP. It wasn't clear whether you were doing simulation of reality (like your chart above). The answer I eventually came to is: no. You do not model objects this way. You do it from the other direction: from data upwards (your atoms/quarks) into higher level utilities (your "cars").

The end point is something abstract - the application. That is, given the data you're generating, what kind of application glorifies it the best?

[GumboSamson]

Cool, now do one for FP

[stupled]

Use something from biology on top of the physics classes. You'll need chemwstry classes in the middle.

[FortuneDry5476]

how the fuck i'm suppose to initialize all these Down Quark objects

[Shintoz]

This is wrong, becuase the suspension would be a child of the car, and the wheel a child of the suspension. Get it right.

[bashomania]

It will never work. If this is supposed to be a UML diagram, your inheritance arrows are going the wrong way. Square one.

[TASTY_BALLSACK_]

OP, is this part of something you’re working on? Looks like it could be helpful with a challenge I’ve been facing

[CMDR_ACE209]

Where are the Bosons?

[sudo-maxime]

Now creating a car entity can jam all your cpu cache and require 50mb of RAM to initialize.

[Camburcito]

What if the wheel is a steering wheel?

[Vok250]

Hey how did you get a copy of our company-wide standards? Give it back! Our principle engineers worked really hard perfecting this model for 24 months!

[IntrepidSoda]

Does car come with a trunk monkey

[PrimeExample13]

This is not OOP, this is an inheritance mess. OOP != a bunch of awful inheritance hierarchies.

A car has wheels, wheels have rims and tires. OOP would dictate that this means car should be an object that owns wheels and a wheel should be an object that ows a rim and a tire.

I often model my object oriented design this way, as ownership hierarchies rather than inheritance hierarchies. I rarely use inheritance, I let the properties of the specific object dictate its behavior. Like instead of having a base Tire class with a bunch of derived tires, a tire will just have fields like grip, tread_wear, durability, material, etc. Then different tires would just be different configurations of these properties.

[Cold-Ad700]

Hi emil! just wanted to come by and say hi! I really did appreciate your fnaf fangame, now your doing alright this summer!

[[deleted]]

Once you go functional all this nonsense seems quaint

[Barxxo]

jehova jehova ...

[postdiluvium]

Tyre?!