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