silphius/app/ecs/components/plant.js

import Component from '@/ecs/component.js';
import Script from '@/util/script.js';

export default class Plant extends Component {
  instanceFromSchema() {
    const {ecs} = this;
    const Instance = super.instanceFromSchema();
    return class PlantInstance extends Instance {
      mayGrow() {
        return this.mayGrowScriptInstance.evaluate();
      }
      grow() {
        const {Ticking} = ecs.get(this.entity);
        Ticking.add(this.growScriptInstance.ticker());
      }
    };
  }
  async load(instance) {
    // heavy handed...
    if ('undefined' !== typeof window) {
      return;
    }
    instance.growScriptInstance = await this.ecs.readScript(
      instance.growScript,
      {
        ecs: this.ecs,
        plant: instance,
      },
    );
    instance.mayGrowScriptInstance = await this.ecs.readScript(
      instance.mayGrowScript,
      {
        ecs: this.ecs,
        plant: instance,
      },
    );
  }
  // heavy handed...
  markChange() {}
  static properties = {
    growScript: {type: 'string'},
    growth: {type: 'uint16'},
    growthFactor: {defaultValue: 127, type: 'uint8'},
    mayGrowScript: {type: 'string'},
    stage: {type: 'uint8'},
    stages: {
      type: 'array',
      subtype: {type: 'uint16'},
    },
  };
}