<!DOCTYPE html>
<html style="height: 100%;">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>ASR tangibles</title>
<style>
body {
width: 100%;
height: 100%;
margin: 0;
background-color: #EEEEEE;
}
#box {
width: 100%;
height: 100%;
}
.tuioCursor {
background: #111;
height: 8px;
left: 0;
position: absolute;
top: 0;
width: 8px;
}
.tuioObj {
background: #111;
height: 15px;
left: 0;
position: absolute;
top: 0;
width: 8px;
rotate: 0deg;
}
</style>
</head>
<body>
<!--<div id="box"></div>-->
<canvas id="box"></canvas>
<!--<script src="/jquery-1.7.2.js"></script>-->
<script src="/lodash.js"></script>
<script src="/socket.io/socket.io.js"></script>
<script src="/tuio.js"></script>
<script>
let config = {};
const getConfig = () => {
return fetch('/config.json');
};
getConfig().then(response => {
return response.json();
}).then(data => {
config = data;
const urlParams = new URLSearchParams(window.location.search);
const sectionParam = urlParams.get('section');
const section = sectionParam ? parseInt(sectionParam, 10) : 100;
if (config.app.debug) {
console.log('### Frontend debug activated ###');
}
const screenW = window.innerWidth;
const screenH = window.innerHeight;
if (config.app.debug && config.app.debugLog.frontend.emitter.screen) {
console.log(`-- Screen width: ${screenW} --`);
console.log(`-- Screen height: ${screenH} --`);
}
/* -------
* EMITTER
* -------
*/
const box = document.getElementById('box');
const eventHandler = (evt, type) => {
const touches = [];
for (var i = 0; i < evt.changedTouches.length; i++) {
touches[i] = {
clientX: evt.changedTouches[i].clientX,
clientY: evt.changedTouches[i].clientY,
force: evt.changedTouches[i].force,
identifier: ((evt.changedTouches[i].identifier + 1) % 100) + section,
pageX: evt.changedTouches[i].pageX,
pageY: evt.changedTouches[i].pageY,
radiusX: evt.changedTouches[i].radiusX,
radiusY: evt.changedTouches[i].radiusY,
rotationAngle: evt.changedTouches[i].rotationAngle,
screenX: evt.changedTouches[i].screenX,
screenY: evt.changedTouches[i].screenY
};
};
if (config.app.debug && config.app.debugLog.frontend.emitter.events) {
console.log(`-- Event: ${type} --`, touches);
}
if (config.app.debug && config.app.debugDisplay) {
box.innerHTML = evt.touches.length;
}
fetch(`http://localhost:${config.app.httpPort}/emitter/json`, {
method: 'POST',
mode: 'cors',
cache: 'no-cache',
credentials: 'same-origin',
headers: {
'Content-Type': 'application/json'
},
redirect: 'follow',
referrerPolicy: 'no-referrer',
body: JSON.stringify({
type,
section,
screenW,
screenH,
touches
})
});
evt.preventDefault();
};
box.addEventListener('touchstart', (evt) => {
return eventHandler(evt, 'touchstart');
});
box.addEventListener('touchmove', (evt) => {
return eventHandler(evt, 'touchmove');
});
box.addEventListener('touchend', (evt) => {
return eventHandler(evt, 'touchend');
});
/* --------
* RECEIVER
* --------
*/
const canvas = document.getElementById('box');
canvas.width = screenW;
canvas.height = screenH;
context = canvas.getContext('2d');
const drawTriangle = (a, b, c) => {
context.clearRect(0, 0, canvas.width, canvas.height);
const path = new Path2D();
path.moveTo(Math.round(a.x), Math.round(a.y));
path.lineTo(Math.round(b.x), Math.round(b.y));
path.lineTo(Math.round(c.x), Math.round(c.y));
context.fill(path);
};
const client = new Tuio.Client({
host: `http://localhost:${config.app.httpPort}`
});
const cursors = {};
const objects = {};
onConnect = function() {
if (config.app.debug) {
console.log('connected to web-socket');
}
},
onAddTuioCursor = function(addCursor) {
/*
var $addCursor = $('<div class="tuioCursor"></div>');
$('body').append($addCursor);
cursors[addCursor.getCursorId()] = $addCursor;
*/
onUpdateTuioCursor(addCursor);
if (config.app.debug && config.app.debugLog.frontend.receiver.onAddTuioCursor) {
console.log('addTuioCursor', addCursor);
}
},
onUpdateTuioCursor = function(updateCursor) {
/*
var $updateCursor = cursors[updateCursor.getCursorId()];
$updateCursor.css({
left: updateCursor.getScreenX(screenW),
top: updateCursor.getScreenY(screenH)
});
*/
if (config.app.debug && config.app.debugLog.frontend.receiver.onUpdateTuioCursor) {
console.log('updateTuioCursor', updateCursor);
}
},
onRemoveTuioCursor = function(removeCursor) {
/*
var $removeCursor = cursors[removeCursor.getCursorId()];
$removeCursor.remove();
delete[removeCursor.getCursorId()];
*/
if (config.app.debug && config.app.debugLog.frontend.receiver.onRemoveTuioCursor) {
console.log('removeTuioCursor', removeCursor);
}
},
onAddTuioObject = function(addObject) {
/*
var $addObject = $('<div class="tuioObj"></div>');
$('body').append($addObject);
objects[addObject.symbolID] = $addObject;
*/
onUpdateTuioObject(addObject);
if (config.app.debug && config.app.debugLog.frontend.receiver.onAddTuioObject) {
console.log('addTuioObject', addObject);
}
},
onUpdateTuioObject = function(updateObject) {
/*
var $updateObject = objects[updateObject.symbolID];
$updateObject.css({
left: updateObject.getScreenX(screenW),
top: updateObject.getScreenY(screenH),
rotate : updateObject.getAngleDegrees()
});
*/
const apexAngle = 35;
const mediatrice = 300;
if (config.app.debugDisplay) {
const x = updateObject.xPos;
const y = updateObject.yPos;
const apex = {
x: Math.cos(updateObject.angle * Math.PI / 180) * (mediatrice / 2) + x,
y: Math.sin(updateObject.angle * Math.PI / 180) * (mediatrice / 2) + y
};
const b = {
x: Math.cos((apexAngle / 2) * Math.PI / 180) * (mediatrice / 2) + apex.x,
y: Math.sin((apexAngle / 2) * Math.PI / 180) * (mediatrice / 2) + apex.y
};
const c = {
x: Math.cos((-1 * apexAngle / 2) * Math.PI / 180) * (mediatrice / 2) + apex.x,
y: Math.sin((-1 * apexAngle / 2) * Math.PI / 180) * (mediatrice / 2) + apex.y
};
drawTriangle(apex, b, c);
}
if (config.app.debug && config.app.debugLog.frontend.receiver.onUpdateTuioObject) {
console.log('updateTuioObject', updateObject);
}
},
onRemoveTuioObject = function(removeObject) {
/*
var $removeObject = objects[removeObject.symbolID];
$removeObject.remove();
delete[removeObject.symbolID];
*/
if (config.app.debug && config.app.debugLog.frontend.receiver.onRemoveTuioObject) {
console.log('removeTuioObject', removeObject);
}
},
onRefresh = function(time) {
if (config.app.debug && config.app.debugLog.frontend.receiver.onRefresh) {
console.log('refresh', time);
}
};
client.on('connect', onConnect);
client.on('addTuioCursor', onAddTuioCursor);
client.on('updateTuioCursor', onUpdateTuioCursor);
client.on('removeTuioCursor', onRemoveTuioCursor);
client.on('addTuioObject', onAddTuioObject);
client.on('updateTuioObject', onUpdateTuioObject);
client.on('removeTuioObject', onRemoveTuioObject);
client.on('refresh', onRefresh);
client.connect();
});
</script>
</body>
</html>