src/repository/city.ts

   1 import { v4 as uuid } from 'uuid';
   2 import { ERROR_CODE, InsufficientResourceError, NotFoundError } from '../errors';
   3 import {Repository} from './base';
   4 import * as config from '../config';
   5 import { BuildQueue, BuildQueueRepository } from './build-queue';
   6 import { DateTime, Duration } from 'luxon';
   7 import { UnitTrainingQueue, UnitTrainingQueueRepository, UnitTrainingQueueWithName } from './training-queue';
   8 import { coalesce, pluck } from '../lib/util';
   9 import { Building, BuildingRepository } from './buildings';
  10 import { Unit, UnitRepository } from './unit';
  11 import _, { random } from 'lodash';
  12 import { Army, ArmyQueue, ArmyRepository } from './army';
  13
  14 export type City = {
  15         id: string;
  16     owner: string;
  17     totalSpace: number;
  18     usedSpace: number;
  19     credits: number;
  20     alloys: number;
  21     energy: number;
  22     food: number;
  23     population: number;
  24     soldiers: number;
  25     attackers: number;
  26     defenders: number;
  27     sp_attackers: number;
  28     sp_defenders: number;
  29     homes: number;
  30     farms: number;
  31     warehouses: number;
  32     solar_panels: number;
  33     accumulators: number;
  34     mining_facilities: number;
  35     ore_refinery: number;
  36     barracks: number;
  37     special_attacker_trainer: number;
  38     special_defender_trainer: number;
  39     icon: string;
  40     max_construction_queue: number;
  41     max_training_queue: number;
  42 }
  43
  44 export type CityWithLocation = {
  45     sector_id: number;
  46     location_x: number;
  47     location_y: number;
  48 } & City;
  49
  50 export class CityRepository extends Repository<City> {
  51     buildQueue: BuildQueueRepository;
  52     buildingRepository: BuildingRepository;
  53     unitRepository: UnitRepository;
  54     unitTrainigQueue: UnitTrainingQueueRepository;
  55     armyRepository: ArmyRepository;
  56
  57     constructor() {
  58         super('cities');
  59         this.buildingRepository = new BuildingRepository();
  60         this.buildQueue = new BuildQueueRepository();
  61         this.unitRepository = new UnitRepository();
  62         this.unitTrainigQueue = new UnitTrainingQueueRepository();
  63         this.armyRepository = new ArmyRepository();
  64     }
  65
  66     async create(accountId: string, rebel: boolean = false): Promise<CityWithLocation> {
  67       const icon = rebel ? `/colony-ships/rebels/${random(1, 6)}.png` : '/colony-ships/01.png';
  68         const info: City = {
  69             id: uuid(),
  70             owner: accountId,
  71             totalSpace: 100,
  72             usedSpace: 0,
  73             credits: 10000,
  74             alloys: 10000,
  75             energy: 10000,
  76             food: 10000,
  77             population: 1000,
  78             soldiers: 100,
  79             attackers: 0,
  80             defenders: 0,
  81             sp_attackers: 0,
  82             sp_defenders: 0,
  83             homes: 20,
  84             farms: 5,
  85             warehouses: 5,
  86             solar_panels: 5,
  87             accumulators: 5,
  88             mining_facilities: 5,
  89             ore_refinery: 5,
  90             barracks: 0,
  91             special_attacker_trainer: 0,
  92             special_defender_trainer: 0,
  93             max_construction_queue: 2,
  94             max_training_queue: 2,
  95             icon
  96         };
  97
  98         await this.Insert(info);
  99
 100         // placement can happen randomly
 101         const availableSectors = config.AVAILABLE_SECTORS;
 102         const sector = _.random(1, availableSectors);
 103
 104         const location = {
 105             sector_id: await this.getAvailableSector(),
 106             location_x: random(0, 25),
 107             location_y: random(0, 25)
 108         }
 109
 110         await this.db.raw('insert into locations (sector_id, city_id, location_x, location_y) values (?, ?, ?, ?)', [
 111             location.sector_id,
 112             info.id,
 113             location.location_x,
 114             location.location_y
 115         ]);
 116
 117         return {
 118             ...info,
 119             sector_id: location.sector_id,
 120             location_x: location.location_x,
 121             location_y: location.location_y
 122         };
 123     }
 124
 125     async getAvailableSector(): Promise<number> {
 126         // figure out which sectors have space (40% fill rate at 25x25);
 127         const availableSectors = await this.db.raw<{count: Number, sector_id: number}[]>(`select count(sector_id) as count, sector_id from locations group by sector_id`);
 128         const sample = _.sample(availableSectors.filter(sector => sector.count < 250)) as {count: number, sector_id: number};
 129
 130         if(!sample) {
 131             return _.sortBy(availableSectors, 'sector_id').pop().sector_id+1;
 132         }
 133
 134         return sample.sector_id;
 135     }
 136
 137     async save(city: City) {
 138       const fieldsToSave = [
 139         'totalSpace', 'usedSpace', 'credits', 'alloys', 'energy', 'food',
 140         'poulation', 'soldiers', 'attackers', 'defenders', 'sp_attackers', 'sp_defenders',
 141         'homes', 'farms', 'barracks', 'special_attacker_trainer', 'special_defender_trainer'
 142       ];
 143
 144       const finalData = {};
 145
 146       fieldsToSave.forEach(field => {
 147         if(city.hasOwnProperty(field)) {
 148           finalData[field] = city[field];
 149         }
 150       });
 151
 152       await this.Save(finalData, {id: city.id});
 153       return city;
 154     }
 155
 156     async findById(cityId: string): Promise<CityWithLocation> {
 157         const city = await this.db.raw<CityWithLocation[]>(`select c.*, l.sector_id, l.location_x, l.location_y from cities c
 158         join locations l on c.id = l.city_id
 159         where id = ? limit 1`, [cityId]);
 160
 161         if(!city) {
 162             throw new NotFoundError('User has no city', ERROR_CODE.NO_CITY);
 163         }
 164
 165         return city.pop();
 166
 167     }
 168
 169     async getUsersCity(owner: string): Promise<CityWithLocation> {
 170         const city = await this.db.raw<CityWithLocation[]>(`select c.*, l.sector_id, l.location_x, l.location_y from cities c
 171         join locations l on c.id = l.city_id
 172         where owner = ? limit 1`, [owner]);
 173
 174         if(!city) {
 175             throw new NotFoundError('User has no city', ERROR_CODE.NO_CITY);
 176         }
 177
 178         return city.pop();
 179     }
 180
 181     findAllInSector(sector_id: number): Promise<CityWithLocation[]> {
 182         return this.db.raw<CityWithLocation[]>(`select c.*, l.sector_id, l.location_x, l.location_y from cities c
 183 join locations l on c.id = l.city_id
 184 where l.sector_id = ?`, [sector_id]);
 185     }
 186
 187     async buildBuilding(building: Building, amount: number, city: City): Promise<BuildQueue> {
 188         const freeSpace = city.totalSpace - city.usedSpace;
 189
 190         if(freeSpace < building.land) {
 191             throw new InsufficientResourceError('land', building.land, freeSpace);
 192         }
 193
 194         if(city.credits < building.credits) {
 195             throw new InsufficientResourceError('credits', building.credits, city.credits);
 196         }
 197
 198         if(city.alloys < building.alloys) {
 199             throw new InsufficientResourceError('alloys', building.alloys, city.alloys);
 200         }
 201
 202         if(city.energy < building.energy) {
 203             throw new InsufficientResourceError('energy', building.energy, city.energy);
 204         }
 205
 206         // validate that they have enough empty construction queues
 207         const concurrentConstruction = await this.buildQueue.list(city.owner);
 208         if(concurrentConstruction.length >= city.max_construction_queue) {
 209           throw new InsufficientResourceError('Training queues', concurrentConstruction.length + 1, city.max_construction_queue);
 210         }
 211
 212         city.usedSpace += (building.land * amount);
 213         city.credits -= (building.credits * amount);
 214         city.alloys -= (building.alloys * amount);
 215         city.energy -= (building.energy * amount);
 216
 217         await this.save(city);
 218
 219         const due = Duration.fromObject({ hours: building.time});
 220         const queue = await this.buildQueue.create(
 221             city.owner,
 222             DateTime.now().plus({ milliseconds: due.as('milliseconds') }).toMillis(),
 223             building.slug,
 224             amount
 225         );
 226
 227         return queue;
 228     }
 229
 230     /**
 231      * Returns the distance in seconds
 232      * @param city1
 233      * @param city2
 234      */
 235     distanceInSeconds(city1: CityWithLocation, city2: CityWithLocation): number {
 236         return this.distanceInHours(city1, city2) * 60 * 60;
 237     }
 238
 239     distanceInHours(city1: CityWithLocation, city2: CityWithLocation): number {
 240         const dist = Math.sqrt(
 241             Math.pow((city2.location_x - city1.location_x), 2)
 242             +
 243             Math.pow((city2.location_y - city1.location_y), 2)
 244         );
 245
 246         // sectors always add 4 hours
 247         const sector_dist = Math.abs(city1.sector_id - city2.sector_id) * 6;
 248
 249         return _.round(dist/4, 2) + sector_dist;
 250
 251     }
 252
 253     async train(unit: Unit, amount: number, city: City): Promise<UnitTrainingQueue> {
 254         if(city.credits < unit.credits) {
 255             throw new InsufficientResourceError('credits', unit.credits, city.credits);
 256         }
 257
 258         if(city.food < unit.food) {
 259             throw new InsufficientResourceError('food', unit.food, city.food);
 260         }
 261
 262         if(city.population < coalesce(unit.population, 0)) {
 263             throw new InsufficientResourceError('population', unit.population, city.population);
 264         }
 265
 266         if(city.soldiers < coalesce(unit.soldiers, 0)) {
 267             throw new InsufficientResourceError('soldiers', unit.soldiers, city.soldiers);
 268         }
 269
 270         if(city.attackers < coalesce(unit.attackers, 0)) {
 271             throw new InsufficientResourceError('attackers', unit.attackers, city.attackers);
 272         }
 273
 274         if(city.defenders < coalesce(unit.defenders, 0)) {
 275             throw new InsufficientResourceError('defenders', unit.defenders, city.defenders);
 276         }
 277
 278         // validate that they have enough empty training queues
 279         const concurrentTraining = await this.unitTrainigQueue.list(city.owner);
 280         if(concurrentTraining.length >= city.max_training_queue) {
 281           throw new InsufficientResourceError('Training queues', concurrentTraining.length + 1, city.max_training_queue);
 282         }
 283
 284         // ok they have everything, lets update their city
 285         // and create the entry in the training queue
 286
 287         city.credits -= unit.credits * amount;
 288         city.food -= unit.food * amount;
 289         city.population -= unit.population * amount;
 290         city.soldiers -= unit.soldiers * amount;
 291         city.attackers -= unit.attackers * amount;
 292         city.defenders -= unit.defenders * amount;
 293
 294         console.log(city);
 295
 296         await this.save(city);
 297
 298         // barracks can drop this by 0.01% for each barrack.
 299
 300         let additionalOffset = 0;
 301         if(unit.slug === 'sp_attackers') {
 302           additionalOffset = (this.spAttackerTraininerBoost(city) * unit.time);
 303         }
 304         else if(unit.slug === 'sp_defenders') {
 305           additionalOffset = (this.spDefenderTraininerBoost(city) * unit.time);
 306         }
 307
 308         const barracksOffset = _.round((this.barracksImprovement(city) * unit.time) + unit.time - additionalOffset, 2);
 309
 310         const due = Duration.fromObject({ hours: barracksOffset });
 311
 312         const queue = await this.unitTrainigQueue.create(
 313             city.owner,
 314             DateTime.now().plus({ milliseconds: due.as('milliseconds') }).toMillis(),
 315             unit.slug,
 316             amount
 317         );
 318
 319         return queue;
 320     }
 321
 322     async power(checkUnits: {soldiers: number, attackers: number, defenders: number, sp_attackers: number, sp_defenders: number}): Promise<number> {
 323         const units = _.keyBy(await this.unitRepository.list(), 'slug');
 324         let power = 0;
 325
 326         _.each(checkUnits, (count, slug) => {
 327             try {
 328                 power += units[slug].attack * count;
 329             }
 330             catch(e) {
 331             }
 332         });
 333
 334         return power
 335     }
 336
 337     barracksImprovement(city: City): number {
 338       return city.barracks * 0.0001;
 339     }
 340
 341     spAttackerTraininerBoost(city: City): number {
 342       return city.special_attacker_trainer * 0.002;
 343     }
 344
 345     spDefenderTraininerBoost(city: City): number {
 346       return city.special_defender_trainer * 0.002;
 347     }
 348
 349     maxPopulation(city: City): number {
 350       return city.homes * 25;
 351     }
 352
 353     maxFood(city: City): number {
 354       return city.warehouses * 250;
 355     }
 356
 357     maxEnergy(city: City): number {
 358       return city.accumulators * 150;
 359     }
 360
 361     maxAlloy(city: City): number {
 362       return city.ore_refinery * 75;
 363     }
 364
 365     async foodProductionPerTick(city: City): Promise<number> {
 366       // eventually we should supply the warehouse formula
 367       // to calculate the max amount of food created per tick
 368       return city.farms * 50;
 369     }
 370
 371     async foodUsagePerTick(city: City): Promise<number> {
 372       return (
 373         (city.soldiers * 0.5) +
 374         (city.population * 0.25) +
 375         (city.attackers * 0.75) +
 376         (city.attackers * 0.75) +
 377         (city.sp_attackers * 1.3) +
 378         (city.sp_defenders * 1.3)
 379       )
 380     }
 381
 382     async energyProductionPerTick(city: City): Promise<number> {
 383       return city.solar_panels * 125;
 384     }
 385
 386     async energyUsagePerTick(city: City): Promise<number> {
 387       const buildings = await this.buildingRepository.list();
 388       const buildingsMap = pluck<Building>(buildings, 'slug');
 389       const totalEnergy = Math.ceil(_.sum([
 390         city.farms * (buildingsMap['farms'].energy * 0.1),
 391         city.barracks * (buildingsMap['barracks'].energy * 0.1),
 392         city.special_defender_trainer * (buildingsMap['special_defender_trainer'].energy * 0.1),
 393         city.special_attacker_trainer * (buildingsMap['special_attacker_trainer'].energy * 0.1),
 394         city.homes * (buildingsMap['homes'].energy * 0.1),
 395         city.warehouses * (buildingsMap['warehouses'].energy * 0.1),
 396         city.solar_panels * (buildingsMap['solar_panels'].energy * 0.1),
 397         city.mining_facilities * (buildingsMap['mining_facilities'].energy * 0.1),
 398         city.ore_refinery * (buildingsMap['ore_refinery'].energy * 0.1)
 399       ]));
 400       return totalEnergy;
 401     }
 402
 403     async attack(attacker: CityWithLocation, attacked: CityWithLocation, army: Army): Promise<ArmyQueue> {
 404         // validate the user has enough of a military!
 405         if(attacker.soldiers < army.soldiers) {
 406             throw new InsufficientResourceError('soldiers', army.soldiers, attacker.soldiers);
 407         }
 408         if(attacker.attackers < army.attackers) {
 409             throw new InsufficientResourceError('attackers', army.attackers, attacker.attackers);
 410         }
 411         if(attacker.defenders < army.defenders) {
 412             throw new InsufficientResourceError('defenders', army.defenders, attacker.defenders);
 413         }
 414         if(attacker.sp_attackers < army.sp_attackers) {
 415             throw new InsufficientResourceError('sp_attackers', army.sp_attackers, attacker.sp_attackers);
 416         }
 417         if(attacker.sp_defenders < army.sp_defenders) {
 418             throw new InsufficientResourceError('sp_defenders', army.sp_defenders, attacker.sp_defenders);
 419         }
 420
 421         // ok, it's a real army lets send it off!
 422         attacker.soldiers -= army.soldiers;
 423         attacker.attackers -= army.attackers;
 424         attacker.defenders -= army.defenders;
 425         attacker.sp_attackers -= army.sp_attackers;
 426         attacker.sp_defenders -= army.sp_defenders;
 427
 428         await this.save(attacker);
 429
 430         return this.armyRepository.create(
 431             attacker.owner,
 432             attacker,
 433             attacked,
 434             army,
 435             this.distanceInSeconds(attacker, attacked)
 436         );
 437     }
 438
 439     async getBuildQueues(owner: string): Promise<BuildQueue[]> {
 440         return this.buildQueue.list(owner);
 441     }
 442
 443     async getUnitTrainingQueues(owner: string): Promise<UnitTrainingQueueWithName[]> {
 444         return this.unitTrainigQueue.list(owner);
 445     }
 446 }