src/events/travel/server.ts

   1 import {movePlayer} from "../../server/player";
   2 import {getCityDetails, getAllServices, getAllPaths, travel, getTravelPlan, stepForward, completeTravel} from "../../server/map";
   3 import {SocketEvent} from "../../server/socket-event.server";
   4 import { sample, random } from 'lodash';
   5 import { getRandomMonster } from "../../server/monster";
   6 import { STEP_DELAY } from "./shared";
   7
   8 const MONSTER_ENCOUNTER_CHANCE = 30;
   9
  10 export const explore: SocketEvent = {
  11   eventName: 'city:travel',
  12   handler: async (api, data: { args: string }) => {
  13     if(api.player.hp <= 0) {
  14       api.socket.emit('alert', {
  15         type: 'error',
  16         text: 'Sorry, you need some HP to start your travel'
  17       });
  18       return;
  19     }
  20
  21     const destinationCity = parseInt(data.args);
  22
  23
  24     if(!destinationCity || isNaN(destinationCity)) {
  25       console.log(`Invalid destination city [${destinationCity}]`);
  26       return;
  27     }
  28
  29     try {
  30       const city = await getCityDetails(destinationCity);
  31
  32       if(!city) {
  33         console.log(`Invalid destination city [${destinationCity}]`);
  34         return;
  35       }
  36
  37       console.log(`${api.player.username} attempting travel to ${city.name}`);
  38       const travelPlan = await travel(api.player, city.id);
  39
  40       api.socket.emit('city:travel', {
  41         things: [],
  42         nextAction: 0,
  43         closestTown: api.player.city_id,
  44         walkingText: ''
  45       });
  46     }
  47     catch(e) {
  48       console.log(e);
  49     }
  50   }
  51 }
  52
  53 const walkingText: string[] = [
  54   'You take a step forward',
  55   'You keep moving'
  56 ];
  57
  58 export const nextStep: SocketEvent = {
  59   eventName: 'travel:step',
  60   handler: async (api, data: { args: string }) => {
  61     const stepTimerKey = `step:${api.player.id}`;
  62     const travelPlan = await getTravelPlan(api.player.id);
  63
  64     if(api.cache[stepTimerKey]) {
  65       if(api.cache[stepTimerKey] > Date.now()) {
  66         // clicked too fast
  67         return;
  68       }
  69     }
  70
  71     if(!travelPlan) {
  72       return;
  73     }
  74
  75     travelPlan.current_position++;
  76     if(travelPlan.current_position >= travelPlan.total_distance) {
  77       const travel = await completeTravel(api.player.id);
  78
  79       api.player.city_id = travel.destination_id;
  80       await movePlayer(travel.destination_id, api.player.id);
  81
  82       const [city, locations, paths] = await Promise.all([
  83         getCityDetails(travel.destination_id),
  84         getAllServices(travel.destination_id),
  85         getAllPaths(travel.destination_id)
  86       ]);
  87
  88       api.socket.emit('city:display', {
  89         city,
  90         locations,
  91         paths
  92       });
  93
  94       delete api.cache[stepTimerKey];
  95     }
  96     else {
  97       // update existing plan..
  98       // decide if they will run into anything
  99       const travelPlan = await stepForward(api.player.id);
 100
 101       const closest: number = (travelPlan.current_position / travelPlan.total_distance) > 0.5 ? travelPlan.destination_id : travelPlan.source_id;
 102
 103       const chanceToSeeMonster = random(0, 100);
 104       const things: any[] = [];
 105       if(chanceToSeeMonster < MONSTER_ENCOUNTER_CHANCE) {
 106         const monster = await getRandomMonster([closest]);
 107         things.push(monster);
 108       }
 109
 110       const nextAction = Date.now() + STEP_DELAY;
 111
 112       api.cache[stepTimerKey] = nextAction;
 113
 114       api.socket.emit('city:travel', {
 115         things,
 116         nextAction,
 117         closestTown: closest,
 118         walkingText: sample(walkingText)
 119       });
 120
 121     }
 122   }
 123 };