/
controller.html
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/
controller.html
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<!doctype html>
<html>
<meta name="viewport" content="width=device-width,user-scalable=no">
<meta name="mobile-web-app-capable" content="yes">
<head>
<title>Phone Controller</title>
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
</style>
</head>
<body>
<script src="/socket.io/socket.io.js"></script>
<script>
/*$(function () {
var socket = io();
$('form').submit(function(){
socket.emit('chat message', "sent: [" + Date.now() + "] " + $('#m').val());
$('#m').val('');
return false;
});
socket.on('chat message', function(msg){
$('#messages').append($('<li>').text("received: [" + Date.now() + "] " + msg));
window.scrollTo(0, document.body.scrollHeight);
});
});*/
var c, ctx;
var W, H;
var socket;
var points = [];
var buttons = [];
var buttonTouches = {};
var debugText = "asd";
var mouseDown = false;
function init() {
buildUI();
establishConnection();
registerHandlers();
render();
}
function buildUI() {
c = document.getElementById("display");
ctx = c.getContext("2d");
W = window.innerWidth;
H = window.innerHeight;
c.width = W;
c.height = H;
Joystick.y = H * 0.7;
var x = W - 100;
var y = H * 0.7;
var separation = 50;
var upButton = new Button("up", x, y - separation, 25, "green");
var downButton = new Button("down", x, y + separation, 25, "blue");
var leftButton = new Button("left", x - separation, y, 25, "purple");
var rightButton = new Button("right", x + separation, y, 25, "red");
buttons = [upButton, downButton, leftButton, rightButton];
}
function establishConnection() {
socket = io();
var cookie = document.cookie;
// valid session stored
if (parseInt(cookie) >= 0) {
socket.emit("clientRejoin", cookie);
} else {
cookie = Math.floor(Math.random() * 1000000000);
document.cookie = cookie;
socket.emit("clientNew", cookie);
}
socket.on("joinSuccess", function(msg) {
console.log("successfully joined", msg);
});
}
function registerHandlers() {
c.ontouchstart = touchStartHandler;
c.ontouchmove = touchMoveHandler;
c.ontouchend = touchEndHandler;
c.onmousedown = mouseDownHandler;
c.onmousemove = mouseMoveHandler;
c.onmouseup = mouseUpHandler;
}
function render() {
ctx.fillStyle = "black";
ctx.fillRect(0, 0, W, H);
ctx.fillStyle = "yellow";
for (var i in points) {
var p = points[i];
ctx.fillRect(p[0], p[1], 5, 5);
}
// ctx.fillText(debugText, W/2, H/2);
// Joystick
ctx.strokeStyle = "white";
ctx.beginPath();
ctx.arc(Joystick.x, Joystick.y, Joystick.r, 0, Math.PI * 2, true);
ctx.closePath();
ctx.stroke();
ctx.beginPath();
ctx.arc(Joystick.x, Joystick.y, Joystick.r / 2, 0, Math.PI * 2, true);
ctx.closePath();
ctx.stroke();
if (Joystick.touchId != -1) {
ctx.fillRect(Joystick.stickX, Joystick.stickY, 10, 10);
}
// Buttons
for (var i = 0; i < buttons.length; i++) {
ctx.fillStyle = buttons[i].color;
ctx.beginPath();
ctx.arc(buttons[i].x, buttons[i].y, buttons[i].r, 0, Math.PI * 2, true);
ctx.closePath();
ctx.fill();
}
window.requestAnimationFrame(render);
}
function touchStartHandler(e) {
e.preventDefault();
for (var i = 0; i < e.touches.length; i++) {
var touch = e.touches[i];
if (Joystick.touchId == -1 && Joystick.isInsideArea(touch.clientX, touch.clientY)) {
Joystick.touchId = touch.identifier;
if (window.navigator.vibrate) {
window.navigator.vibrate(50);
}
}
for (var j = 0; j < buttons.length; j++) {
if (buttons[j].isInsideArea(touch.clientX, touch.clientY)) {
debugText += "ASd";
if (window.navigator.vibrate) {
window.navigator.vibrate(200);
}
socket.emit("button", messageWithId({
button: buttons[j].name,
status: 1
}));
buttonTouches[touch.identifier] = buttons[j].name;
}
}
}
// updatePoints(e);
}
function messageWithId(msg) {
console.log(msg)
msg.id = document.cookie;
return JSON.stringify(msg);
}
function mouseDownHandler(e) {
mouseDown = true;
e.preventDefault();
Joystick.updateStickPos(e.clientX, e.clientY);
for (var j = 0; j < buttons.length; j++) {
if (buttons[j].isInsideArea(e.clientX, e.clientY)) {
debugText += "ASd";
if (window.navigator.vibrate) {
window.navigator.vibrate(200);
}
socket.emit("button", messageWithId({
button: buttons[j].name,
status: 1
}));
buttonTouches[0] = buttons[j].name;
}
}
socket.emit("joystick", messageWithId(Joystick.getInput()));
}
function mouseMoveHandler(e) {
if(!mouseDown) return;
Joystick.updateStickPos(e.clientX, e.clientY);
socket.emit("joystick", messageWithId(Joystick.getInput()));
}
function mouseUpHandler(e) {
mouseDown = false;
socket.emit("joystick", messageWithId(Joystick.getZeroed()));
}
function touchMoveHandler(e) {
e.preventDefault();
updatePoints(e);
if (Joystick.touchId != -1) {
socket.emit("joystick", messageWithId(Joystick.getInput()));
}
}
function touchEndHandler(e) {
e.preventDefault();
for (var i = 0; i < e.changedTouches.length; i++) {
var touch = e.changedTouches[i];
if (Joystick.touchId == touch.identifier) {
Joystick.touchId = -1;
socket.emit("joystick", messageWithId(Joystick.getZeroed()));
}
if (buttonTouches[touch.identifier]) {
socket.emit("button", messageWithId({
button: buttonTouches[touch.identifier],
status: 0
}));
delete buttonTouches[touch.identifier];
}
}
}
function orientationChangeHandler(e) {
W = window.innerWidth;
H = window.innerHeight;
c.width = W;
c.height = H;
Joystick.y = H * 0.7;
render();
}
function updatePoints(e) {
points = [];
for (var i = 0; i < e.touches.length; i++) {
var touch = e.touches[i];
points.push([e.touches[i].clientX, e.touches[i].clientY]);
if (Joystick.touchId == touch.identifier) {
Joystick.updateStickPos(touch.clientX, touch.clientY);
}
}
}
var Joystick = {
x: 100,
y: 100,
r: 75,
touchId: -1,
stickX: 0,
stickY: 0,
angle: 0,
magnitude: 0,
isInsideArea: function(px, py) {
return Math.pow(px - this.x, 2) + Math.pow(py - this.y, 2) <= Math.pow(this.r, 2);
},
updateStickPos: function(px, py) {
this.angle = Math.atan2(py - this.y, px - this.x);
this.magnitude = Math.min(Math.sqrt(Math.pow(px - this.x, 2) + Math.pow(py - this.y, 2)), this.r) / this.r;
this.stickX = this.x + Math.cos(this.angle) * this.magnitude * this.r;
this.stickY = this.y + Math.sin(this.angle) * this.magnitude * this.r;
},
getInput: function() {
return {
angle: this.angle,
magnitude: this.magnitude
};
},
getZeroed: function() {
return {
angle: 0,
magnitude: 0
}
}
}
var Button = function(name, x, y, r, color) {
this.name = name;
this.x = x;
this.y = y;
this.r = r;
this.color = color || "white";
this.isInsideArea = function(px, py) {
return Math.pow(px - this.x, 2) + Math.pow(py - this.y, 2) <= Math.pow(this.r, 2);
}
}
window.onload = init;
window.addEventListener("orientationchange", orientationChangeHandler, false);
</script>
<canvas id="display"></canvas>
</body>
</html>