silphius/app/ecs/components/forces.js

import Component from '@/ecs/component.js';

export default class Forces extends Component {
  instanceFromSchema() {
    return class ForcesInstance extends super.instanceFromSchema() {
      applyForce({x, y}) {
        this.forceX += x;
        this.forceY += y;
      }
      applyImpulse({x, y}) {
        this.impulseX += x;
        this.impulseY += y;
      }
    }
  }
  static properties = {
    dampingX: {type: 'float32'},
    dampingY: {type: 'float32'},
    forceX: {type: 'float32'},
    forceY: {type: 'float32'},
    impulseX: {type: 'float32'},
    impulseY: {type: 'float32'},
  };
}