1 const API = "https://families.cworth.org/api/";
3 function undisplay(element) {
4 element.style.display="none";
7 function add_message(severity, message) {
8 message = `<div class="message ${severity}" onclick="undisplay(this)">
10 <span class="hide-button" onclick="undisplay(this.parentElement)">×</span>
12 const message_area = document.getElementById('message-area');
13 message_area.insertAdjacentHTML('beforeend', message);
16 function register(form) {
17 var request = new XMLHttpRequest();
19 request.open("POST", API + "register");
20 request.setRequestHeader("Content-Type", "application/json; charset=UTF-8");
22 "name": form.name.value,
23 "character": form.character.value
25 request.send(JSON.stringify(data));
30 const events = new EventSource(API + "events");
32 events.onerror = function(event) {
33 if (event.target.readyState === EventSource.CLOSED) {
34 add_message("danger", "Connection to server lost.");
38 events.addEventListener("players", function(event) {
39 const players_div = document.getElementById("players-div");
40 const players_element = document.getElementById("players");
41 const players = JSON.parse(event.data);
43 players_element.innerHTML = '';
44 for (const player of players) {
45 var li = document.createElement('li');
46 li.id = "player-" + player.id;
47 li.innerText = player.name;
48 players_element.appendChild(li);
51 /* Force players list to be visible. */
52 players_div.style.display = "block";
55 events.addEventListener("player-join", function(event) {
56 const players_div = document.getElementById("players-div");
57 const players = document.getElementById("players");
58 const player = JSON.parse(event.data);
60 const li = document.createElement('li');
61 li.id = "player-" + player.id;
62 li.innerText = player.name;
63 players.appendChild(li);
65 add_message("success", player.name + " is now in the game!");
67 /* Force players list to be visible. */
68 players_div.style.display = "block";
71 events.addEventListener("player-leave", function(event) {
72 const players = document.getElementById("players");
73 const id = JSON.parse(event.data);
74 const player = document.getElementById("player-" + id.id);
76 add_message("info", player.innerText + " has left the game.");
77 players.removeChild(player);
80 events.addEventListener("game-state", function(event) {
81 const data = JSON.parse(event.data);
82 const old_state = data.old_state;
83 const new_state = data.new_state;
85 const hide_selector = ".show-state-" +old_state+ ",.hide-state-" +new_state;
86 const show_selector = ".hide-state-" +old_state+ ",.show-state-" +new_state;
88 /* Hide all elements based on the state transition. */
89 var elts = document.querySelectorAll(hide_selector);
90 for (const elt of elts) {
91 elt.style.display = "none";
94 /* And show all elements based on the same state transition. */
95 elts = document.querySelectorAll(show_selector);
96 for (const elt of elts) {
97 elt.style.display = "block";
101 events.addEventListener("character-reveal", function(event) {
102 const data = JSON.parse(event.data);
103 const character_name = data.character;
105 const character = document.getElementById("character-reveal");
107 character.innerText = character_name;
110 events.addEventListener("capture", function(event_string) {
111 const players = document.getElementById("players");
112 const event = JSON.parse(event_string.data);
113 const player = document.getElementById("player-" + event.captee);
115 players.removeChild(player);