Data locality: Entity creation

Benchmark created by onebytegone on August 18, 2019

Setup

class Component {
     constructor() {
        this.value = 0;
     }
     update() {
        this.value = this.value + 1;
     }
  }
  
  class Entity {
     constructor(id) {
        this.id = id;
        this._components = [];
     }
     addComponent(component) {
        this._components.push(component);
     }
     update() {
        this._components.forEach((component) => {
           component.update();
        });
     }
  }
  
  class ClassComponentSystem {
     constructor() {
        this._components = [];
     }
     add(component) {
        this._components.push(component);
     }
     update() {
        this._components.forEach((component) => {
           component.update();
        });
     }
  }
  
  class PlainObjectComponentSystem {
     constructor() {
        this._components = [];
     }
     add(component) {
        this._components.push(component);
     }
     update() {
        this._components.forEach((component) => {
           component.value = component.value + 1;
        });
     }
  }
  
  const entities = [],
        classSystem = new ClassComponentSystem(),
        plainObjectSystem = new PlainObjectComponentSystem();

Test runner

const entity = new Entity();

entity.addComponent(new Component());
entities.push(entity);

classSystem.add(new Component());

plainObjectSystem.add({ value: 0 });

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

• Revision 1: published by onebytegone on August 18, 2019