Design - Concepts and Terminology

General

• CodeAesthetic .

  • Aesthetics and programming theories.

Casing

• camelCase :

  • getCookie

• snake_case :

  • get_cookie

• PascalCase :

  • GetCookie

Anonymous Functions vs Lambda Functions vs Closures

• Lambda :

  • They are Anonymous Functions, even smaller, in one line.

• Closures :

  • An Anonymous Function, but aware of its surroundings.

Operators

• Unary :

  • Operators operate on a single target (such as -a ). Unary prefix  operators appear immediately before their target (such as !b ), and unary postfix  operators appear immediately after their target (such as c! ).

• Binary :

  • Operators operate on two targets (such as 2 + 3 ) and are infix  because they appear between their two targets.

• Ternary :

  • Operators operate on three targets. Like C, Swift has only one ternary operator, the ternary conditional operator ( a ? b : c ).

• The values that operators affect are operands . In the expression 1 + 2 , the +  symbol is an infix operator and its two operands are the values 1  and 2 .

Compilation / Interpreter

• Compilation and Interpreter {18:28 -> 27:41} .

Reflection

• It is the ability of a program to inspect and manipulate its own structure at runtime.

• This includes:

  • Listing types, functions, fields, attributes.

  • Getting function argument types.

  • Dynamically creating instances of types.

  • Invoking functions by their names.

• Function Introspection :

  • A subtype of reflection. Refers specifically to the ability to:

    • Get the function name.

    • View its parameters and types.

    • Know its return type.

    • Inspect attributes.

    • View its source code.

Components

• Components are modular units of software that encapsulate logic, state, and presentation.

• They are often used in architectures such as Component-Based Architecture, common in frameworks like React, Vue.js, and Angular.

• Main characteristics :

  • Encapsulation :

    • A component is an independent entity that can have its own state and internal logic.

  • Reusability :

    • It can be used in different parts of the system without code duplication.

  • Interoperability :

    • It can interact with other components through properties (props), events, or interfaces.

  • Lifecycle :

    • It can have initialization, update, and destruction phases.

Composition

About

• Composition is a code structuring technique where objects, functions, or components are built by combining smaller, reusable entities.

• Composition can occur in different forms, such as:

  • Object Composition :

    • An object contains other objects as attributes.

  • Functional Composition :

    • Functions are combined to form processing pipelines.

  • Component Composition :

    • A component is composed of smaller components.

Inheritance vs Composition

• Inheritance vs Composition, by CodeAesthetic .

• Inheritance vs Composition, by MetaphoricallySpeaking .

  • I liked the drawer organization example.

• Inheritance vs Composition, by Tutemic .

  • He calls it Component Pattern instead of Composition, but I believe it’s the same thing.

• 

• Inheritance vs Composition, in Godot, by Bitlytic .

• Inheritance vs Composition, in Godot, by Freddy .

In Godot

• Composition in Godot, for creating entities .

• Composition in Godot, for defining attacks .

  • {4:55 -> 8:40}

    • He uses the combination of components to define what can happen during the attack.

    • The activation of these components is done via an AnimationPlayer dedicated to the attack.