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

export default class Emitter extends Component {
  mergeDiff(original, update) {
    const merged = {};
    if (update.emit) {
      merged.emit = {
        ...original.emit,
        ...update.emit,
      }
    }
    return merged;
  }
  instanceFromSchema() {
    const Component = this;
    const Instance = super.instanceFromSchema();
    return class EmitterInstance extends Instance {
      emitting = [];
      id = 0;
      emit(specification) {
        Component.markChange(this.entity, 'emit', {[this.id++]: specification});
      }
    };
  }
}