Entity Component System

Overview

flowchart TB
    Entity["Entity"] --> Ally["Ally"] & Civillian["Civillian"] & Enemy["Enemy"]
    Enemy --> Boss["Boss"]
    Ally --> Player["Player"]
     Entity:::Class_1
    classDef Class_1 stroke-width:4px, stroke-dasharray:5

The ECS is a complex system dependent on Object Oriented Programming, Inheritance and Polymorphism to ensure that core aspects of each type of Entity is properly distributed. The minimizes redundancy whilst saving a lot of time that would otherwise have been used to create code for each entity individually.

The following diagram illustrates the design of the ECS:

flowchart TB
    Core["Core<br>(Entity)"] --> Chain["Chain of <br> Inherited Classes"] --> Unique["Unique<br>&<br>Classless"]
     Core:::Class_1
     Unique:::Class_1
    classDef Class_1 stroke-width:2px, stroke-dasharray:3

• The Core / Base class Entity is responsible “giving life” to an entity.
• The chain of inherited classes represent how the entire chain from Entity to the one just above the unique code for this entity. It is responsible for giving the entity an identity and determining it’s behavior (such as chasing the enemy).
  • eg: if the current entity is a Boss then the chain will be:
    ⇒Enemy⇒Boss⇒
• The lowest stage is the classless and unique code which will apply only to the current specific entity. It is responsible for determining how the behavior (such as swinging a sword) will be carried out.

List

• Entity
  • Ally
    • Player
  • Civilian
  • Enemy
    • Boss