silphius/app/ecs/systems/interactions.js

import {System} from '@/ecs/index.js';

export default class Interactions extends System {

  static queries() {
    return {
      default: ['Interacts'],
    };
  }

  tick() {
    for (const entity of this.select('default')) {
      const {Collider, Interacts} = entity;
      let willInteractWith = 0;
      const entities = Collider.closest(Interacts.aabb());
      for (const other of entities) {
        if (other.Interactive?.interacting) {
          willInteractWith = other.id;
          break;
        }
      }
      Interacts.willInteractWith = willInteractWith;
    }
  }

}