Class default

Minimal Entity Component System (ECS) implementation.

Stores component data by component type and entity id. Entities are represented by unique symbol identifiers.

This implementation:

Stores only data (no systems)
Allows dynamic component registration
Supports simple entity queries

Index

Constructors

Properties

Methods

addComponent componentsOfType entitiesWith getComponent removeComponent removeEntity

Constructors

constructor

new default(): default
Returns default

Properties

paused

paused: boolean = false

Whether simulation systems should update. Rendering may still occur while paused.

Methods

addComponent

addComponent<T extends object>(id: symbol, name: Component, data: T): void
Adds or replaces a component on an entity.

If the component type does not yet exist in storage, it will be initialized automatically.
Type Parameters
- T extends object
  Component data type.
Parameters
- id: symbol
  Entity identifier.
- name: Component
  Component type.
- data: T
  Component data object.
Returns void
- Defined in game/ecs/index.ts:63

componentsOfType

componentsOfType<T extends object>(name: Component): [symbol, T][]
Returns all components of a specific type.

Useful for systems that operate on a single component class.
Type Parameters
- T extends object
  Component data type.
Parameters
- name: Component
  Component type.
Returns [symbol, T][]
Array of [entityId, componentData] tuples.
- Defined in game/ecs/index.ts:121

entitiesWith

entitiesWith(...componentNames: Component[]): symbol[]
Returns all entities that contain every specified component.

The first component type is used as the base set, and the remaining component types are intersected.
Parameters
- ...componentNames: Component[]
  Component types required.
Returns symbol[]
Array of matching entity ids.
- Defined in game/ecs/index.ts:101

getComponent

getComponent<T extends object>(id: symbol, name: Component): T | undefined
Retrieves a component from an entity.
Type Parameters
- T extends object
  Expected component type.
Parameters
- id: symbol
  Entity identifier.
- name: Component
  Component type.
Returns T | undefined
Component data or undefined if not found.
- Defined in game/ecs/index.ts:78

removeComponent

removeComponent(id: symbol, name: Component): void
Removes a specific component from an entity.
Parameters
- id: symbol
  Entity identifier.
- name: Component
  Component type.
Returns void
- Defined in game/ecs/index.ts:88

removeEntity

removeEntity(id: symbol): void
Removes an entity and all of its components.
Parameters
- id: symbol
  Entity identifier.
Returns void
- Defined in game/ecs/index.ts:48