@screeps/engine/dist/processor/intents/links/transfer.js

This is a module for Screeps standalone server. See [main repository](https://github.com/screeps/screeps) for more info.

'use strict';

var _ = require('lodash'),
    utils = require('../../../utils'),
    driver = utils.getDriver(),
    C = driver.constants;

module.exports = function (object, intent, { roomObjects, bulk, roomController, eventLog }) {

    if (!object || object.type != 'link') {
        return;
    }

    if (!object.store || object.store.energy < intent.amount || intent.amount < 0) {
        return;
    }

    var target = roomObjects[intent.id];
    if (!target) {
        return;
    }

    if (target.type != 'link') {
        return;
    }
    var amount = intent.amount;
    var targetTotal;

    if (object.cooldown > 0) {
        return;
    }
    if (!utils.checkStructureAgainstController(object, roomObjects, roomController)) {
        return;
    }
    targetTotal = target.store.energy;

    if (!target.storeCapacityResource || !target.storeCapacityResource.energy || targetTotal == target.storeCapacityResource.energy) {
        return;
    }

    if (targetTotal + amount > target.storeCapacityResource.energy) {
        amount = target.storeCapacityResource.energy - targetTotal;
    }
    target.store.energy += amount;

    object.store.energy -= amount;

    target.store.energy -= Math.ceil(amount * C.LINK_LOSS_RATIO);
    object.cooldown += C.LINK_COOLDOWN * Math.max(Math.abs(target.x - object.x), Math.abs(target.y - object.y));
    object.actionLog.transferEnergy = { x: target.x, y: target.y };
    bulk.update(target, { store: { energy: target.store.energy } });

    bulk.update(object, { store: { energy: object.store.energy }, cooldown: object.cooldown, actionLog: object.actionLog });

    eventLog.push({ event: C.EVENT_TRANSFER, objectId: object._id, data: { targetId: target._id, resourceType: C.RESOURCE_ENERGY, amount } });
};
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