@screeps/engine/dist/processor/intents/invader-core/stronghold/defence.js

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

'use strict';

const _ = require('lodash'),
      utils = require('../../../../utils'),
      driver = utils.getDriver(),
      C = driver.constants,
      fakeRuntime = require('../../../common/fake-runtime'),
      defence = require('./defence');

exports.createSafeMatrixCallback = function createSafeMatrixCallback(context) {
    const hostiles = context.hostiles,
          ramparts = context.ramparts,
          roomObjects = context.roomObjects;


    if (!_.some(hostiles)) {
        return;
    }

    const safeMatrixCallback = function safeMatrixCallback(room) {
        const matrix = new fakeRuntime.CostMatrix();
        for (let i = 0; i < 50; i++) for (let j = 0; j < 50; j++) matrix.set(i, j, Infinity);

        for (let rampart of ramparts) {
            matrix.set(rampart.x, rampart.y, 1);
        }

        _.forEach(roomObjects, object => {
            if (object.type != 'creep' && _.includes(C.OBSTACLE_OBJECT_TYPES, object.type)) {
                matrix.set(object.x, object.y, Infinity);
            }
        });

        return matrix;
    };

    return safeMatrixCallback;
};

exports.distribute = function (positions, agents) {
    if (!_.some(agents)) {
        return {};
    }
    if (agents.length > positions.length) {
        agents = agents.slice(0, positions.length);
    }

    const result = {},
          weights = _.map(positions, p => {
        return { pos: p, weight: 100 };
    });
    while (_.some(agents)) {
        const creep = agents.shift();
        const place = _.max(weights, 'weight');
        _.pull(weights, place);
        result[50 * place.pos.x + place.pos.y] = creep;
        _.forEach(weights, w => {
            w.weight -= Math.max(0, _.size(weights) - utils.dist(w.pos, place.pos));
        });
    }
    return result;
};
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