git.cworth.org Git - lmno.games/blob - empires/empires-client.js

   1 const API = "https://families.cworth.org/api/";
   2
   3 function undisplay(element) {
   4   element.style.display="none";
   5 }
   6
   7 function add_message(severity, message) {
   8   message = `<div class="message ${severity}" onclick="undisplay(this)">
   9 ${message}
  10 <span class="hide-button" onclick="undisplay(this.parentElement)">&times</span>
  11 </div>`;
  12   const message_area = document.getElementById('message-area');
  13   message_area.insertAdjacentHTML('beforeend', message);
  14 }
  15
  16 function register_loaded(name) {
  17   add_message("success", name + " is now in the game!");
  18 }
  19
  20 function register(form) {
  21   var request = new XMLHttpRequest();
  22   request.addEventListener("load", register_loaded(form.name.value));
  23
  24   request.open("POST", API + "register");
  25   request.setRequestHeader("Content-Type", "application/json; charset=UTF-8");
  26   var data = {
  27     "name": form.name.value,
  28     "character": form.character.value
  29   };
  30   request.send(JSON.stringify(data));
  31
  32   form.reset();
  33 }
  34
  35 const events = new EventSource(API + "events");
  36
  37 events.onerror = function(event) {
  38   if (event.target.readyState === EventSource.CLOSED) {
  39       add_message("danger", "Connection to server lost.");
  40   }
  41 };
  42
  43 events.addEventListener("players", function(event) {
  44   const players_element = document.getElementById("players");
  45   const players = JSON.parse(event.data);
  46
  47   players_element.innerHTML = '';
  48   for (const player of players) {
  49     var li = document.createElement('li');
  50     li.id = "player-" + player.id;
  51     li.innerText = player.name;
  52     players_element.appendChild(li);
  53   }
  54 });
  55
  56 events.addEventListener("player-join", function(event) {
  57   const players = document.getElementById("players");
  58   const player = JSON.parse(event.data);
  59
  60   const li = document.createElement('li');
  61   li.id = "player-" + player.id;
  62   li.innerText = player.name;
  63   players.appendChild(li);
  64 });
  65
  66 events.addEventListener("player-leave", function(event) {
  67   const players = document.getElementById("players");
  68   const id = JSON.parse(event.data);
  69   const player = document.getElementById("player-" + id.id);
  70
  71   players.removeChild(player);
  72 });
  73
  74 events.addEventListener("capture", function(event_string) {
  75   const players = document.getElementById("players");
  76   const event = JSON.parse(event_string.data);
  77   const player = document.getElementById("player-" + event.captee);
  78
  79   players.removeChild(player);
  80 });