@screeps/engine/dist/processor/intents/creeps/harvest.js

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

'use strict';

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

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

module.exports = function (object, intent, roomObjects, roomTerrain, bulk, bulkUsers, roomController, stats) {

    if (object.type != 'creep') {
        return;
    }
    if (object.spawning) {
        return;
    }

    var target = roomObjects[intent.id];
    if (!target) {
        return;
    }
    if (Math.abs(target.x - object.x) > 1 || Math.abs(target.y - object.y) > 1) {
        return;
    }

    if (target.type == 'source') {

        if (!target.energy) {
            return;
        }

        if (roomController && (roomController.user && roomController.user != object.user || roomController.reservation && roomController.reservation.user != object.user)) {
            return;
        }

        var harvestAmount = utils.calcBodyEffectiveness(object.body, C.WORK, 'harvest', C.HARVEST_POWER);

        if (harvestAmount) {

            var amount = Math.min(target.energy, harvestAmount);

            target.energy -= amount;
            object.energy += amount;

            var invaderHarvested = (target.invaderHarvested || 0) + amount;

            bulk.update(object, { energy: object.energy });
            bulk.update(target, { energy: target.energy, invaderHarvested: invaderHarvested });

            var sum = utils.calcResources(object);

            if (sum > object.energyCapacity) {
                require('./drop')(object, {
                    amount: Math.min(object.energy, sum - object.energyCapacity),
                    resourceType: 'energy'
                }, roomObjects, roomTerrain, bulk);
            }

            object.actionLog.harvest = { x: target.x, y: target.y };

            stats.inc('energyHarvested', object.user, amount);
        }
    }

    if (target.type == 'mineral') {

        if (!target.mineralAmount) {
            return;
        }

        var extractor = _.find(roomObjects, function (i) {
            return i.type == C.STRUCTURE_EXTRACTOR && i.x == target.x && i.y == target.y;
        });

        if (!extractor) {
            return;
        }
        if (extractor.user && extractor.user != object.user) {
            return;
        }
        if (!utils.checkStructureAgainstController(extractor, roomObjects, roomController)) {
            return;
        }
        if (extractor.cooldown) {
            return;
        }

        var _harvestAmount = utils.calcBodyEffectiveness(object.body, C.WORK, 'harvest', C.HARVEST_MINERAL_POWER);

        if (_harvestAmount) {

            var _amount = Math.min(target.mineralAmount, _harvestAmount);

            bulk.update(target, { mineralAmount: target.mineralAmount - _amount });
            bulk.update(object, _defineProperty({}, target.mineralType, (object[target.mineralType] || 0) + _amount));

            var _sum = utils.calcResources(object);

            if (_sum > object.energyCapacity) {
                require('./drop')(object, {
                    amount: Math.min(object[target.mineralType], _sum - object.energyCapacity),
                    resourceType: target.mineralType
                }, roomObjects, roomTerrain, bulk);
            }

            object.actionLog.harvest = { x: target.x, y: target.y };

            extractor._cooldown = C.EXTRACTOR_COOLDOWN;
        }
    }
};
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