mirror of
https://github.com/paradizelost/screeps.git
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584 lines
22 KiB
JavaScript
584 lines
22 KiB
JavaScript
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/**
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* To start using Traveler, require it in main.js:
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* Example: var Traveler = require('Traveler.js');
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*/
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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class Traveler {
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/**
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* move creep to destination
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* @param creep
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* @param destination
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* @param options
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* @returns {number}
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*/
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static travelTo(creep, destination, options = {}) {
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// uncomment if you would like to register hostile rooms entered
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// this.updateRoomStatus(creep.room);
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if (!destination) {
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return ERR_INVALID_ARGS;
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}
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if (creep.fatigue > 0) {
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Traveler.circle(creep.pos, "aqua", .3);
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return ERR_BUSY;
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}
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destination = this.normalizePos(destination);
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// manage case where creep is nearby destination
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let rangeToDestination = creep.pos.getRangeTo(destination);
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if (options.range && rangeToDestination <= options.range) {
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return OK;
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}
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else if (rangeToDestination <= 1) {
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if (rangeToDestination === 1 && !options.range) {
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let direction = creep.pos.getDirectionTo(destination);
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if (options.returnData) {
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options.returnData.nextPos = destination;
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options.returnData.path = direction.toString();
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}
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return creep.move(direction);
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}
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return OK;
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}
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// initialize data object
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if (!creep.memory._trav) {
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delete creep.memory._travel;
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creep.memory._trav = {};
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}
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let travelData = creep.memory._trav;
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let state = this.deserializeState(travelData, destination);
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// uncomment to visualize destination
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// this.circle(destination.pos, "orange");
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// check if creep is stuck
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if (this.isStuck(creep, state)) {
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state.stuckCount++;
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Traveler.circle(creep.pos, "magenta", state.stuckCount * .2);
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}
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else {
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state.stuckCount = 0;
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}
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// handle case where creep is stuck
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if (!options.stuckValue) {
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options.stuckValue = DEFAULT_STUCK_VALUE;
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}
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if (state.stuckCount >= options.stuckValue && Math.random() > .5) {
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options.ignoreCreeps = false;
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options.freshMatrix = true;
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delete travelData.path;
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}
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// TODO:handle case where creep moved by some other function, but destination is still the same
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// delete path cache if destination is different
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if (!this.samePos(state.destination, destination)) {
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if (options.movingTarget && state.destination.isNearTo(destination)) {
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travelData.path += state.destination.getDirectionTo(destination);
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state.destination = destination;
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}
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else {
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delete travelData.path;
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}
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}
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if (options.repath && Math.random() < options.repath) {
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// add some chance that you will find a new path randomly
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delete travelData.path;
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}
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// pathfinding
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let newPath = false;
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if (!travelData.path) {
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newPath = true;
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if (creep.spawning) {
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return ERR_BUSY;
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}
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state.destination = destination;
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let cpu = Game.cpu.getUsed();
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let ret = this.findTravelPath(creep.pos, destination, options);
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let cpuUsed = Game.cpu.getUsed() - cpu;
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state.cpu = _.round(cpuUsed + state.cpu);
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if (state.cpu > REPORT_CPU_THRESHOLD) {
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// see note at end of file for more info on this
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console.log(`TRAVELER: heavy cpu use: ${creep.name}, cpu: ${state.cpu} origin: ${creep.pos}, dest: ${destination}`);
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}
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let color = "orange";
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if (ret.incomplete) {
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// uncommenting this is a great way to diagnose creep behavior issues
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// console.log(`TRAVELER: incomplete path for ${creep.name}`);
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color = "red";
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}
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if (options.returnData) {
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options.returnData.pathfinderReturn = ret;
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}
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travelData.path = Traveler.serializePath(creep.pos, ret.path, color);
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state.stuckCount = 0;
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}
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this.serializeState(creep, destination, state, travelData);
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if (!travelData.path || travelData.path.length === 0) {
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return ERR_NO_PATH;
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}
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// consume path
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if (state.stuckCount === 0 && !newPath) {
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travelData.path = travelData.path.substr(1);
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}
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let nextDirection = parseInt(travelData.path[0], 10);
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if (options.returnData) {
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if (nextDirection) {
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let nextPos = Traveler.positionAtDirection(creep.pos, nextDirection);
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if (nextPos) {
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options.returnData.nextPos = nextPos;
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}
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}
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options.returnData.state = state;
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options.returnData.path = travelData.path;
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}
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return creep.move(nextDirection);
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}
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/**
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* make position objects consistent so that either can be used as an argument
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* @param destination
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* @returns {any}
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*/
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static normalizePos(destination) {
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if (!(destination instanceof RoomPosition)) {
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return destination.pos;
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}
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return destination;
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}
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/**
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* check if room should be avoided by findRoute algorithm
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* @param roomName
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* @returns {RoomMemory|number}
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*/
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static checkAvoid(roomName) {
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return Memory.rooms && Memory.rooms[roomName] && Memory.rooms[roomName].avoid;
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}
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/**
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* check if a position is an exit
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* @param pos
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* @returns {boolean}
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*/
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static isExit(pos) {
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return pos.x === 0 || pos.y === 0 || pos.x === 49 || pos.y === 49;
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}
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/**
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* check two coordinates match
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* @param pos1
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* @param pos2
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* @returns {boolean}
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*/
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static sameCoord(pos1, pos2) {
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return pos1.x === pos2.x && pos1.y === pos2.y;
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}
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/**
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* check if two positions match
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* @param pos1
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* @param pos2
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* @returns {boolean}
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*/
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static samePos(pos1, pos2) {
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return this.sameCoord(pos1, pos2) && pos1.roomName === pos2.roomName;
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}
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/**
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* draw a circle at position
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* @param pos
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* @param color
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* @param opacity
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*/
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static circle(pos, color, opacity) {
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new RoomVisual(pos.roomName).circle(pos, {
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radius: .45, fill: "transparent", stroke: color, strokeWidth: .15, opacity: opacity
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});
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}
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/**
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* update memory on whether a room should be avoided based on controller owner
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* @param room
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*/
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static updateRoomStatus(room) {
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if (!room) {
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return;
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}
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if (room.controller) {
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if (room.controller.owner && !room.controller.my) {
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room.memory.avoid = 1;
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}
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else {
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delete room.memory.avoid;
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}
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}
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}
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/**
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* find a path from origin to destination
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* @param origin
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* @param destination
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* @param options
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* @returns {PathfinderReturn}
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*/
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static findTravelPath(origin, destination, options = {}) {
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_.defaults(options, {
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ignoreCreeps: true,
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maxOps: DEFAULT_MAXOPS,
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range: 1,
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});
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if (options.movingTarget) {
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options.range = 0;
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}
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origin = this.normalizePos(origin);
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destination = this.normalizePos(destination);
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let originRoomName = origin.roomName;
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let destRoomName = destination.roomName;
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// check to see whether findRoute should be used
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let roomDistance = Game.map.getRoomLinearDistance(origin.roomName, destination.roomName);
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let allowedRooms = options.route;
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if (!allowedRooms && (options.useFindRoute || (options.useFindRoute === undefined && roomDistance > 2))) {
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let route = this.findRoute(origin.roomName, destination.roomName, options);
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if (route) {
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allowedRooms = route;
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}
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}
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let roomsSearched = 0;
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let callback = (roomName) => {
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if (allowedRooms) {
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if (!allowedRooms[roomName]) {
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return false;
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}
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}
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else if (!options.allowHostile && Traveler.checkAvoid(roomName)
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&& roomName !== destRoomName && roomName !== originRoomName) {
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return false;
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}
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roomsSearched++;
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let matrix;
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let room = Game.rooms[roomName];
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if (room) {
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if (options.ignoreStructures) {
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matrix = new PathFinder.CostMatrix();
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if (!options.ignoreCreeps) {
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Traveler.addCreepsToMatrix(room, matrix);
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}
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}
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else if (options.ignoreCreeps || roomName !== originRoomName) {
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matrix = this.getStructureMatrix(room, options.freshMatrix);
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}
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else {
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matrix = this.getCreepMatrix(room);
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}
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if (options.obstacles) {
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matrix = matrix.clone();
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for (let obstacle of options.obstacles) {
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if (obstacle.pos.roomName !== roomName) {
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continue;
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}
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matrix.set(obstacle.pos.x, obstacle.pos.y, 0xff);
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}
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}
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}
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if (options.roomCallback) {
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if (!matrix) {
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matrix = new PathFinder.CostMatrix();
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}
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let outcome = options.roomCallback(roomName, matrix.clone());
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if (outcome !== undefined) {
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return outcome;
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}
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}
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return matrix;
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};
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let ret = PathFinder.search(origin, { pos: destination, range: options.range }, {
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maxOps: options.maxOps,
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maxRooms: options.maxRooms,
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plainCost: options.offRoad ? 1 : options.ignoreRoads ? 1 : 2,
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swampCost: options.offRoad ? 1 : options.ignoreRoads ? 5 : 10,
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roomCallback: callback,
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});
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if (ret.incomplete && options.ensurePath) {
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if (options.useFindRoute === undefined) {
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// handle case where pathfinder failed at a short distance due to not using findRoute
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// can happen for situations where the creep would have to take an uncommonly indirect path
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// options.allowedRooms and options.routeCallback can also be used to handle this situation
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if (roomDistance <= 2) {
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console.log(`TRAVELER: path failed without findroute, trying with options.useFindRoute = true`);
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console.log(`from: ${origin}, destination: ${destination}`);
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options.useFindRoute = true;
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ret = this.findTravelPath(origin, destination, options);
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console.log(`TRAVELER: second attempt was ${ret.incomplete ? "not " : ""}successful`);
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return ret;
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}
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// TODO: handle case where a wall or some other obstacle is blocking the exit assumed by findRoute
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}
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else {
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}
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}
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return ret;
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}
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/**
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* find a viable sequence of rooms that can be used to narrow down pathfinder's search algorithm
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* @param origin
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* @param destination
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* @param options
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* @returns {{}}
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*/
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static findRoute(origin, destination, options = {}) {
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let restrictDistance = options.restrictDistance || Game.map.getRoomLinearDistance(origin, destination) + 10;
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let allowedRooms = { [origin]: true, [destination]: true };
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let highwayBias = 1;
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if (options.preferHighway) {
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highwayBias = 2.5;
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if (options.highwayBias) {
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highwayBias = options.highwayBias;
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}
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}
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let ret = Game.map.findRoute(origin, destination, {
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routeCallback: (roomName) => {
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if (options.routeCallback) {
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let outcome = options.routeCallback(roomName);
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if (outcome !== undefined) {
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return outcome;
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}
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}
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let rangeToRoom = Game.map.getRoomLinearDistance(origin, roomName);
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if (rangeToRoom > restrictDistance) {
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// room is too far out of the way
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return Number.POSITIVE_INFINITY;
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}
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if (!options.allowHostile && Traveler.checkAvoid(roomName) &&
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roomName !== destination && roomName !== origin) {
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// room is marked as "avoid" in room memory
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return Number.POSITIVE_INFINITY;
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}
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let parsed;
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if (options.preferHighway) {
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parsed = /^[WE]([0-9]+)[NS]([0-9]+)$/.exec(roomName);
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let isHighway = (parsed[1] % 10 === 0) || (parsed[2] % 10 === 0);
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if (isHighway) {
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return 1;
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}
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}
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// SK rooms are avoided when there is no vision in the room, harvested-from SK rooms are allowed
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if (!options.allowSK && !Game.rooms[roomName]) {
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if (!parsed) {
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parsed = /^[WE]([0-9]+)[NS]([0-9]+)$/.exec(roomName);
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}
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let fMod = parsed[1] % 10;
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let sMod = parsed[2] % 10;
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let isSK = !(fMod === 5 && sMod === 5) &&
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((fMod >= 4) && (fMod <= 6)) &&
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((sMod >= 4) && (sMod <= 6));
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if (isSK) {
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return 10 * highwayBias;
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}
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}
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return highwayBias;
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},
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});
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if (!_.isArray(ret)) {
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console.log(`couldn't findRoute to ${destination}`);
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return;
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||
|
|
}
|
||
|
|
for (let value of ret) {
|
||
|
|
allowedRooms[value.room] = true;
|
||
|
|
}
|
||
|
|
return allowedRooms;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* check how many rooms were included in a route returned by findRoute
|
||
|
|
* @param origin
|
||
|
|
* @param destination
|
||
|
|
* @returns {number}
|
||
|
|
*/
|
||
|
|
static routeDistance(origin, destination) {
|
||
|
|
let linearDistance = Game.map.getRoomLinearDistance(origin, destination);
|
||
|
|
if (linearDistance >= 32) {
|
||
|
|
return linearDistance;
|
||
|
|
}
|
||
|
|
let allowedRooms = this.findRoute(origin, destination);
|
||
|
|
if (allowedRooms) {
|
||
|
|
return Object.keys(allowedRooms).length;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* build a cost matrix based on structures in the room. Will be cached for more than one tick. Requires vision.
|
||
|
|
* @param room
|
||
|
|
* @param freshMatrix
|
||
|
|
* @returns {any}
|
||
|
|
*/
|
||
|
|
static getStructureMatrix(room, freshMatrix) {
|
||
|
|
if (!this.structureMatrixCache[room.name] || (freshMatrix && Game.time !== this.structureMatrixTick)) {
|
||
|
|
this.structureMatrixTick = Game.time;
|
||
|
|
let matrix = new PathFinder.CostMatrix();
|
||
|
|
this.structureMatrixCache[room.name] = Traveler.addStructuresToMatrix(room, matrix, 1);
|
||
|
|
}
|
||
|
|
return this.structureMatrixCache[room.name];
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* build a cost matrix based on creeps and structures in the room. Will be cached for one tick. Requires vision.
|
||
|
|
* @param room
|
||
|
|
* @returns {any}
|
||
|
|
*/
|
||
|
|
static getCreepMatrix(room) {
|
||
|
|
if (!this.creepMatrixCache[room.name] || Game.time !== this.creepMatrixTick) {
|
||
|
|
this.creepMatrixTick = Game.time;
|
||
|
|
this.creepMatrixCache[room.name] = Traveler.addCreepsToMatrix(room, this.getStructureMatrix(room, true).clone());
|
||
|
|
}
|
||
|
|
return this.creepMatrixCache[room.name];
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* add structures to matrix so that impassible structures can be avoided and roads given a lower cost
|
||
|
|
* @param room
|
||
|
|
* @param matrix
|
||
|
|
* @param roadCost
|
||
|
|
* @returns {CostMatrix}
|
||
|
|
*/
|
||
|
|
static addStructuresToMatrix(room, matrix, roadCost) {
|
||
|
|
let impassibleStructures = [];
|
||
|
|
for (let structure of room.find(FIND_STRUCTURES)) {
|
||
|
|
if (structure instanceof StructureRampart) {
|
||
|
|
if (!structure.my && !structure.isPublic) {
|
||
|
|
impassibleStructures.push(structure);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (structure instanceof StructureRoad) {
|
||
|
|
matrix.set(structure.pos.x, structure.pos.y, roadCost);
|
||
|
|
}
|
||
|
|
else if (structure instanceof StructureContainer) {
|
||
|
|
matrix.set(structure.pos.x, structure.pos.y, 5);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
impassibleStructures.push(structure);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for (let site of room.find(FIND_MY_CONSTRUCTION_SITES)) {
|
||
|
|
if (site.structureType === STRUCTURE_CONTAINER || site.structureType === STRUCTURE_ROAD
|
||
|
|
|| site.structureType === STRUCTURE_RAMPART) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
matrix.set(site.pos.x, site.pos.y, 0xff);
|
||
|
|
}
|
||
|
|
for (let structure of impassibleStructures) {
|
||
|
|
matrix.set(structure.pos.x, structure.pos.y, 0xff);
|
||
|
|
}
|
||
|
|
return matrix;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* add creeps to matrix so that they will be avoided by other creeps
|
||
|
|
* @param room
|
||
|
|
* @param matrix
|
||
|
|
* @returns {CostMatrix}
|
||
|
|
*/
|
||
|
|
static addCreepsToMatrix(room, matrix) {
|
||
|
|
room.find(FIND_CREEPS).forEach((creep) => matrix.set(creep.pos.x, creep.pos.y, 0xff));
|
||
|
|
return matrix;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* serialize a path, traveler style. Returns a string of directions.
|
||
|
|
* @param startPos
|
||
|
|
* @param path
|
||
|
|
* @param color
|
||
|
|
* @returns {string}
|
||
|
|
*/
|
||
|
|
static serializePath(startPos, path, color = "orange") {
|
||
|
|
let serializedPath = "";
|
||
|
|
let lastPosition = startPos;
|
||
|
|
this.circle(startPos, color);
|
||
|
|
for (let position of path) {
|
||
|
|
if (position.roomName === lastPosition.roomName) {
|
||
|
|
new RoomVisual(position.roomName)
|
||
|
|
.line(position, lastPosition, { color: color, lineStyle: "dashed" });
|
||
|
|
serializedPath += lastPosition.getDirectionTo(position);
|
||
|
|
}
|
||
|
|
lastPosition = position;
|
||
|
|
}
|
||
|
|
return serializedPath;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* returns a position at a direction relative to origin
|
||
|
|
* @param origin
|
||
|
|
* @param direction
|
||
|
|
* @returns {RoomPosition}
|
||
|
|
*/
|
||
|
|
static positionAtDirection(origin, direction) {
|
||
|
|
let offsetX = [0, 0, 1, 1, 1, 0, -1, -1, -1];
|
||
|
|
let offsetY = [0, -1, -1, 0, 1, 1, 1, 0, -1];
|
||
|
|
let x = origin.x + offsetX[direction];
|
||
|
|
let y = origin.y + offsetY[direction];
|
||
|
|
if (x > 49 || x < 0 || y > 49 || y < 0) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
return new RoomPosition(x, y, origin.roomName);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* convert room avoidance memory from the old pattern to the one currently used
|
||
|
|
* @param cleanup
|
||
|
|
*/
|
||
|
|
static patchMemory(cleanup = false) {
|
||
|
|
if (!Memory.empire) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (!Memory.empire.hostileRooms) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
let count = 0;
|
||
|
|
for (let roomName in Memory.empire.hostileRooms) {
|
||
|
|
if (Memory.empire.hostileRooms[roomName]) {
|
||
|
|
if (!Memory.rooms[roomName]) {
|
||
|
|
Memory.rooms[roomName] = {};
|
||
|
|
}
|
||
|
|
Memory.rooms[roomName].avoid = 1;
|
||
|
|
count++;
|
||
|
|
}
|
||
|
|
if (cleanup) {
|
||
|
|
delete Memory.empire.hostileRooms[roomName];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (cleanup) {
|
||
|
|
delete Memory.empire.hostileRooms;
|
||
|
|
}
|
||
|
|
console.log(`TRAVELER: room avoidance data patched for ${count} rooms`);
|
||
|
|
}
|
||
|
|
static deserializeState(travelData, destination) {
|
||
|
|
let state = {};
|
||
|
|
if (travelData.state) {
|
||
|
|
state.lastCoord = { x: travelData.state[STATE_PREV_X], y: travelData.state[STATE_PREV_Y] };
|
||
|
|
state.cpu = travelData.state[STATE_CPU];
|
||
|
|
state.stuckCount = travelData.state[STATE_STUCK];
|
||
|
|
state.destination = new RoomPosition(travelData.state[STATE_DEST_X], travelData.state[STATE_DEST_Y], travelData.state[STATE_DEST_ROOMNAME]);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
state.cpu = 0;
|
||
|
|
state.destination = destination;
|
||
|
|
}
|
||
|
|
return state;
|
||
|
|
}
|
||
|
|
static serializeState(creep, destination, state, travelData) {
|
||
|
|
travelData.state = [creep.pos.x, creep.pos.y, state.stuckCount, state.cpu, destination.x, destination.y,
|
||
|
|
destination.roomName];
|
||
|
|
}
|
||
|
|
static isStuck(creep, state) {
|
||
|
|
let stuck = false;
|
||
|
|
if (state.lastCoord !== undefined) {
|
||
|
|
if (this.sameCoord(creep.pos, state.lastCoord)) {
|
||
|
|
// didn't move
|
||
|
|
stuck = true;
|
||
|
|
}
|
||
|
|
else if (this.isExit(creep.pos) && this.isExit(state.lastCoord)) {
|
||
|
|
// moved against exit
|
||
|
|
stuck = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return stuck;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
Traveler.structureMatrixCache = {};
|
||
|
|
Traveler.creepMatrixCache = {};
|
||
|
|
exports.Traveler = Traveler;
|
||
|
|
// this might be higher than you wish, setting it lower is a great way to diagnose creep behavior issues. When creeps
|
||
|
|
// need to repath to often or they aren't finding valid paths, it can sometimes point to problems elsewhere in your code
|
||
|
|
const REPORT_CPU_THRESHOLD = 1000;
|
||
|
|
const DEFAULT_MAXOPS = 20000;
|
||
|
|
const DEFAULT_STUCK_VALUE = 2;
|
||
|
|
const STATE_PREV_X = 0;
|
||
|
|
const STATE_PREV_Y = 1;
|
||
|
|
const STATE_STUCK = 2;
|
||
|
|
const STATE_CPU = 3;
|
||
|
|
const STATE_DEST_X = 4;
|
||
|
|
const STATE_DEST_Y = 5;
|
||
|
|
const STATE_DEST_ROOMNAME = 6;
|
||
|
|
// assigns a function to Creep.prototype: creep.travelTo(destination)
|
||
|
|
Creep.prototype.travelTo = function (destination, options) {
|
||
|
|
return Traveler.travelTo(this, destination, options);
|
||
|
|
};
|