In OOP, this refers to a lower-level class using the definition for a higher-level class' methods or properties.

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Categorizing Projectiles in an arcade shooter (multiple inheritance?)

I have been working on a simple arcade shooter in Java in the vein of missile command/space invaders. I've made a base Projectile class and have been extending other Projectile types from it. This ...
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16 views

Making unity inspector accept classes that inherit from a base class

I have a base class that has a lot of classes inheriting from it, I want to make a script that you can drop one of these derived classes into. How do i do that? abstract class thingy : ...
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57 views

What if I extend a uclass without UClass() in Unreal Engine?

What happens if I extend a uclass (or UObject) without the UClass() macro? Will it still be a UClass() and managed by the garbage collector? I'm just curious. Update I managed to extend ...
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65 views

How do i approach these inheritance problem? (Pokemon Gen III) [closed]

I'm currently making a Pokemon clone on Python just for the heck of it. After fiddling a bit with some GBA ROM editing tools, i've found out that on these games there are, among other things: Events ...
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30 views

List derived class serialization

I have an extremely simple ObservableCollection<T> implementation using [Serializable] public class ObservableCollection<T> : List<T>, INotifyPropertyChanged {...} in Unity3D with ...
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47 views

Error : No default constructor exists for “Sprite” [closed]

What i want to do is make the Player class inherit the Sprite class. So I inherited it like this : class Player: public Sprite {}; But when I go to my Player.cpp I get the following error : ...
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1answer
61 views

Inherited property in derived class reference only base class

[Context] I am developing a game in Unity, and wanted to make a Game Manager. Like many examples out there, it uses a Singletron design pattern. But i have several other Managers, all using Singletron ...
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121 views

Problem designing my pseudo-3D game with SFML

I am designing the game so the objects I create (Character, Enemy, Enemycast...) can inherit all from Collider SpineDrawable // Sprite // AnimatedSprite D2D // D3D Both D2D and D3D inherit from ...
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Java (libGDX) - Inheritance problems

I'm having some issues with inheritance for one of my libGDX projects, I'm making a game similar to (very stripped down) Terraria or Starbound and I am using the TiledMap to load the world, ...
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246 views

Space game: inheritance for spaceships?

In a space game I'm writing in C++11, I have a class Spaceship. Now I want to create 3 more spaceship types, how should I do? Attack type: have a weapon Research type: have a sensor Religious type: ...
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435 views

Callback on Derived Class?

How does Unity3D implement their system where if a class is derived from MonoBehaviour and has certain methods like Awake() or Update(), they are called accordingly? I want to do a similar system for ...
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122 views

Have several classes with a common interface, but still able to access MonoBehaviour methods through that interface?

In our project we used to have a PlayerObject class and then Unit and Building derived from that class. We recently started taking a look at Bolt, which requires classes that define objects that may ...
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124 views

Weird inheritance hierarchy?

In my RPG, all Food objects should be possible weapons. For instance, I want the player to be able to to try kill bunnies with a cherry or a watermelon. The problem is that the easiest way to do this ...
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1answer
44 views

How to reuse code [closed]

I have three classes. Monster derives from Animation. Animation derives from Collider. This is, monster is an animated collider. However, I'd like to have animated objects that are not colliders. ...
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1answer
273 views

How does super.render() call this method?

Today I was experimenting with adding different screens with Scene2d in libgdx and while doing so I became confused how super.render() in my render() method from my starter class (MyGdxGame) called ...
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2answers
277 views

Single or multiple inheritance for game world objects

So I am currently laying out on paper the system I want to code for a game in C++. Now currently I am debating whether to have e.g. a class object_door that inherits from another class ...
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1answer
521 views

Should I use inheritance or interfaces for an inventory system? [closed]

I'm about to start programmin an inventory, harvest and loot system. I will need enemies that drop items, harvestable environmentals that yield resources and an inventory system that takes items and ...
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1answer
243 views

Making specific Enemy Classes

So I was just looking through an old game I had made for android, and was second guessing how I was sub-classing enemy for each particular enemy in my game. My enemy class had all kinds of ...
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1answer
115 views

How to save a character to be used in all Game States?

I am using C# and SFML. I am having a problem understanding how to save a character in memory, so I can use the character in any game state. Right now, the character is a class, and the player ...
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1answer
351 views

Spell classes and inheritance

I'm currently developing a small game, that includes spell casting. My class structure looks like this: AbstractSpell AbstractDamageSpell AbstractClickableSpell ...
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1answer
340 views

How to use/apply class inheritance in Enchant.js

You're developing a game using Enchant.js and you just need an Enemy class which multiple enemy classes derive from and every enemy has its own sprite and stuff.
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2answers
514 views

Game state management: the buck doesn't stop “here” soon enough

I realize there are already many Q&As on this site about GameState/GameScreen management, state machines, state stacks, etc. This question is meant as a follow-up: Suppose hypothetically I ...
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2answers
2k views

How should I plan the inheritance structure for my game?

I am trying to write a platform shooter in C++ with a really good class structure for robustness. The game itself is secondary; it is the learning process of writing it that is primary. I am ...
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1answer
2k views

Custom inventory items based on inheritance

So, here's the scenario: I'm building an RPG. Like most of the other RPGs on the market, my game will feature an inventory and of course, inventory items. So far I've worked well with using a single ...
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880 views

Doesn't multiple inheritance solve all problems that entity systems do?

The question is pretty self explaining: doesn't multiple inheritance solve all the problems that entity systems also solve? I just remembered a term called "multiple inheritance", and that seems to ...