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2. Singleton pattern - Wikipedia

   en.wikipedia.org/wiki/Singleton_pattern

   A class diagram exemplifying the singleton pattern. In object-oriented programming, the singleton pattern is a software design pattern that restricts the instantiation of a class to a singular instance. It is one of the well-known "Gang of Four" design patterns, which describe how to solve recurring problems in object-oriented software. [1]

3. Null object pattern - Wikipedia

   en.wikipedia.org/wiki/Null_object_pattern

   In object-oriented computer programming, a null object is an object with no referenced value or with defined neutral (null) behavior.The null object design pattern, which describes the uses of such objects and their behavior (or lack thereof), was first published as "Void Value" [1] and later in the Pattern Languages of Program Design book series as "Null Object".

4. Class (computer programming) - Wikipedia

   en.wikipedia.org/wiki/Class_(computer_programming)

   In object-oriented programming, a class defines the shared aspects of objects created from the class. The capabilities of a class differ between programming languages , but generally the shared aspects consist of state ( variables ) and behavior ( methods ) that are each either associated with a particular object or with all objects of that class.

5. Entity component system - Wikipedia

   en.wikipedia.org/wiki/Entity_component_system

   Components are a specialized case under the general delegation approach and meta-object protocol. That is, any complete component object system can be expressed with the templates and empathy model within The Orlando Treaty [2] vision of object-oriented programming. Entity: An entity represents a general-purpose object. In a game engine context ...

6. Delegation pattern - Wikipedia

   en.wikipedia.org/wiki/Delegation_pattern

   In delegation, two objects are involved in handling a request: a receiving object delegates operations to its delegate. This is analogous to subclasses deferring requests to parent classes. But with inheritance, an inherited operation can always refer to the receiving object through the this member variable in C++ and self in Smalltalk. To ...

7. Godot (game engine) - Wikipedia

   en.wikipedia.org/wiki/Godot_(game_engine)

   Godot allows video game developers to create both 3D and 2D games using multiple programming languages, such as C++, C# and GDScript. [8] It makes use of a hierarchy of nodes to facilitate the development experience. [9] Classes can be derived from a node type to create more specialized node types that inherit behavior.

8. Composite pattern - Wikipedia

   en.wikipedia.org/wiki/Composite_pattern

   In software engineering, the composite pattern is a partitioning design pattern. The composite pattern describes a group of objects that are treated the same way as a single instance of the same type of object. The intent of a composite is to "compose" objects into tree structures to represent part-whole hierarchies.

9. Haxe - Wikipedia

   en.wikipedia.org/wiki/Haxe

   Haxe is a high-level cross-platform programming language and compiler that can produce applications and source code for many different computing platforms from one code-base. It is free and open-source software, released under an MIT License. [2] The compiler is written in OCaml.