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index.html
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<html>
<head>
<title>Test Game</title>
<script src="PlayerIOClient.development.js"></script>
<canvas id="canvas"></canvas>
<script>
let started = false;
var global = {
connection: null,
users: {}
}
let c = document.getElementById("canvas");
let ctx = c.getContext("2d");
c.width = window.innerWidth;
c.height = window.innerHeight;
let cursor = 0; //Cursor position
let textRow = 0; //Row of text drawing (for chat)
let newUserId = ""; //Username
let playerMessage = ""; //Player input
let scene = 0; //Scene number
let room = ""; //Room id
let RandomOrDefined = false; //Is the room a random room or a defined room
let globalText = ""; //It's like text in the onkeydown function but global
let sounds = [];
sounds[0] = new Audio("Notification_Sound.wav");
sounds[1] = new Audio("Join_Sound.wav");
sounds[2] = new Audio("Leave_Sound.wav");
function splitarr(arr, n) {
return arr.split("").map((a, b, c) => c.slice(b, b + n).join("")).filter((a, b) => b % n == 0)
}
addChatLine("notice", "", "Input username:");
document.onkeydown = e => {
if (!(e.keyCode < 48 || (e.keyCode > 91 && e.keyCode < 186)) || e.keyCode == "32") {
let startString = playerMessage.substring(0, cursor + 1);
let endString = playerMessage.substring(cursor + 1, playerMessage.length);
playerMessage = startString + e.key + endString;
cursor++;
}
if (e.key == "Backspace") {
if (cursor != -1) {
let startString = playerMessage.substring(0, cursor);
let endString = playerMessage.substring(cursor + 1, playerMessage.length);
playerMessage = startString + endString;
cursor--;
}
}
if (e.key == "ArrowLeft") cursor--;
if (e.key == "ArrowRight") cursor++;
cursor = Math.min(Math.max(cursor, -1), playerMessage.length - 1);
ctx.font = "20px Arial";
ctx.clearRect(0, c.height - 40, c.width, 40);
ctx.fillStyle = "black";
ctx.fillText(playerMessage, 20, c.height - 20);
let len = playerMessage.substring(0, cursor + 1);
let width = ctx.measureText(len).width;
ctx.fillRect(width + 20, c.height - 37, 1, 20);
if (e.key == "Enter" && playerMessage.length > 0) {
addChatLine("message", newUserId, playerMessage);
let text = playerMessage;
playerMessage = "";
ctx.clearRect(0, c.height - 40, c.width, 40);
if (scene == 3)
global.connection.send('msg', text);
if (scene == 2) {
room = text;
scene = 3;
addChatLine("notice", "", "Joining room " + room);
start();
}
if (scene == 1) {
if (text == "Y") {
RandomOrDefined = true;
scene = 3;
addChatLine("notice", "", "Creating a random room to join.");
start();
} else if (text == "N") {
scene = 2;
start();
} else {
addChatLine("error", "", "\"" + text + "\" is not a valid input.");
}
}
if (scene == 0) {
if (text.length < 15) {
scene = 1;
newUserId = text;
let nameLength = ctx.measureText(text).width;
ctx.fillText(text, c.width - nameLength - 10, 30);
addChatLine("notice", "", "Generate a random room (Y) or input a room (N)?");
} else {
addChatLine("error", "", "Name was too long, enter a name smaller than 15 characters");
}
}
cursor = 0;
}
}
function start() {
PlayerIO.authenticate("test-game-ue9bkyltk6wozndkbdwa", "public", {
userId: newUserId
}, {}, function (client) {
if (RandomOrDefined) {
room = Math.floor(Math.random() * 10000) + "";
let list = client.multiplayer.listRooms("Chat", {}, 0, 0, (rooms) => {
let len = rooms.length;
for (let i = 0; i < len; i++) {
if (rooms[i].id == room) {
room = Math.floor(Math.random() * 10000) + "";
}
}
});
let roomTextLength = ctx.measureText(room).width;
ctx.fillText(room, c.width - roomTextLength - 10, 50);
} else if (scene == 2) {
addChatLine("notice", "", "Rooms:");
let list = client.multiplayer.listRooms("Chat", {}, 0, 0, (rooms) => {
let len = rooms.length;
for (let i = 0; i < len; i++) {
addChatLine("message", "", rooms[i].id);
}
addChatLine("notice", "", "Input room ID:");
});
}
if (room != "")
client.multiplayer.createJoinRoom(room, 'Chat', true, null, {
name: newUserId
}, function (connection) {
global.connection = connection
addChatLine('notice', '', 'connected to room')
connection.addMessageCallback("*", function (message) {
switch (message.type) {
case "join":
handleJoin(message);
break;
case "left":
handleLeft(message);
break;
case "msg":
handleMsg(message);
break;
}
});
//Setup a disconnect handler:
connection.addDisconnectCallback(function () {
addChatLine("error", "", "disconnected from room");
});
}, callbackError)
}, callbackError)
}
function callbackError(error) {
addChatLine("error", '', "ERROR: " + error.code + ": " + error.message)
}
function handleJoin(message) {
sounds[1].play();
var user = {
id: message.getInt(0),
name: message.getString(1),
}
global.users[user.id] = user
addChatLine("notice", '', user.name + " joined")
}
function handleLeft(message) {
sounds[2].play();
var user = global.users[message.getInt(0)]
if (user != null) {
delete global.users[user.id]
addChatLine("notice", '', user.name + " left")
}
}
function handleMsg(message) {
sounds[0].play();
var user = global.users[message.getInt(0)]
if (user != null && user.name != newUserId) {
addChatLine("message", user.name, message.getString(1))
}
}
function addChatLine(type, name, text) {
let length = ctx.measureText(text).width;
let lines = Math.ceil(length / 700);
let texts = [];
let totalLength = 0;
for (let i = 0; i < lines; i++) {
texts[i] = "";
for (let j = 0; j < text.length; j++) {
totalLength += ctx.measureText(text[j]).width;
texts[i] += text[j];
if (totalLength > 700) {
totalLength = 0;
let texty = text.split("");
texty.splice(0, j - 1)
text = texty.join("");
break;
}
}
}
if (type == "error") {
ctx.fillStyle = "red";
} else {
ctx.fillStyle = "black";
}
ctx.font = "bold 20px Arial";
if (type == "notice") {
ctx.font = "italic " + ctx.font;
}
let len = ctx.measureText(name ? name + ": " : "").width;
ctx.fillText(name ? name + ": " : "", 10, 30 * textRow + 20);
ctx.font = "20px Arial"
if (type == "notice") {
ctx.font = "italic " + ctx.font;
}
ctx.fillText(texts[0], len + 10, 30 * textRow + 20);
textRow++;
if (textRow > 15) {
let diff = 15 - textRow
textRow = 15;
let imageData = ctx.getImageData(0, 0, c.width / 4 * 3, c.height / 8 * 7);
ctx.putImageData(imageData, 0, 30 * diff);
}
if (texts.length > 1) {
texts.shift();
addChatLine(type, "", texts.join(""));
}
}
</script>
</head>
<body style="margin: 0;">
</body>
</html>