@screeps/engine/src/processor/intents/labs/transfer.js

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

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

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

    if(!_.contains(C.RESOURCES_ALL, intent.resourceType)) {
        return;
    }

    var target = roomObjects[intent.id];
    if(!target || target.type != 'creep' || utils.calcResources(target) >= target.energyCapacity || intent.amount < 0) {
        return;
    }
    if(Math.abs(target.x - object.x) > 1 || Math.abs(target.y - object.y) > 1) {
        return;
    }
    var amount = intent.amount;
    var amountKey = intent.resourceType == C.RESOURCE_ENERGY ? 'energy' : 'mineralAmount';
    if(utils.calcResources(target) + amount > target.energyCapacity) {
        amount = target.energyCapacity - utils.calcResources(target);
    }
    if(object[amountKey] < amount) {
        return;
    }

    target[intent.resourceType] = target[intent.resourceType] || 0;
    target[intent.resourceType] += amount;


    object[amountKey] -= amount;
    if(!object.mineralAmount && object.mineralType) {
        bulk.update(object, {mineralType: null});
    }

    bulk.update(object, {[amountKey]: object[amountKey]});
    bulk.update(target, {[intent.resourceType]: target[intent.resourceType]});
};