tobspr_shapez.io/src/js/game/systems/item_producer.js

/* typehints:start */
import { GameRoot } from "../root";
/* typehints:end */

import { ItemProducerComponent } from "../components/item_producer";
import { GameSystemWithFilter } from "../game_system_with_filter";

export class ItemProducerSystem extends GameSystemWithFilter {
    /** @param {GameRoot} root */
    constructor(root) {
        super(root, [ItemProducerComponent]);
        this.item = null;
    }

    update() {
        for (let i = 0; i < this.allEntities.length; ++i) {
            const entity = this.allEntities[i];
            const producerComp = entity.components.ItemProducer;
            const ejectorComp = entity.components.ItemEjector;

            if (producerComp.isWireless()) {
                continue;
            }

            const pinsComp = entity.components.WiredPins;
            const pin = pinsComp.slots[0];
            const network = pin.linkedNetwork;

            if (!network || !network.hasValue()) {
                continue;
            }

            this.item = network.currentValue;
            ejectorComp.tryEject(0, this.item);
        }
    }
}