forked from CoretechR/ZeroBot
-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathTouch.html
637 lines (514 loc) · 14.8 KB
/
Touch.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
<!--This code is based on a project by Seb Lee-Delisle: http://seb.ly/2011/04/multi-touch-game-controller-in-javascripthtml5-for-ipad/-->
<!doctype html>
<html lang=en>
<head>
<meta charset=utf-8>
<meta name="viewport" content="width=device-width, height=device-height, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" />
<meta name="mobile-web-app-capable" content="yes">
<title>Touch Control</title>
<style type="text/css">
* {
-webkit-touch-callout: none; /* prevent callout to copy image, etc when tap to hold */
-webkit-text-size-adjust: none; /* prevent webkit from resizing text to fit */
/* make transparent link selection, adjust last value opacity 0 to 1.0 */
-webkit-tap-highlight-color: rgba(0,0,0,0);
-webkit-user-select: none; /* prevent copy paste, to allow, change 'none' to 'text' */
-webkit-tap-highlight-color: rgba(0,0,0,0);
}
body {
background-color: #000000;
margin: 0px;
}
canvas {
display:block;
position:absolute;
z-index: 1;
}
.container {
width:auto;
text-align:center;
background-color:#ff0000;
}
/* Headlight toggle switch (source: http://callmenick.com/post/css-toggle-switch-examples) */
.cmn-toggle {
position: absolute;
margin-left: -9999px;
visibility: hidden;
}
.cmn-toggle + label {
display: block;
position: relative;
cursor: pointer;
outline: none;
user-select: none;
}
input.cmn-toggle-round-flat + label {
background-color: transparent;
border-radius: 10%;
border: 2px;
border-style: solid;
border-color: white;
text-align:center;
padding-top: 20%;
padding-bottom: 20%;
font-size: 16px;
margin: 40% 7% 10%;
cursor: pointer;
transition: background 0.4s;
}
input.cmn-toggle-round-flat:checked + label {
background-color: gray;
}
.cam_button {
background-color: transparent;
border-radius: 100%;
border: 7px;
border-style: solid;
border-color: white;
text-align:center;
padding-top: 40%;
padding-bottom: 40%;
padding-left: 40%;
padding-right: 40%;
font-size: 16px;
margin: 50% 3% 4% 4%;
cursor: pointer;
}
.cam_button:active {
background-color: gray;
}
.off_button {
background-color: transparent;
border-radius: 10%;
border: 2px;
border-style: solid;
border-color: white;
text-align:center;
padding-top: 20%;
padding-bottom: 20%;
font-size: 100%;
margin: 10% 7%;
cursor: pointer;
}
.off_button:active {
background-color: gray;
}
.light_button {
background-color: transparent;
border-radius: 10%;
border: 2px;
border-style: solid;
border-color: white;
text-align:center;
padding-top: 20%;
padding-bottom: 20%;
font-size: 16px;
margin: 40% 7% 10%;
cursor: pointer;
}
.light_button:checked {
background-color: #b1b;
}
.sidenav {
color: #fff;
height: 100%;
width: 13%;
position: fixed;
z-index: 0;
top: 0px;
background-color: #111;
overflow-x: hidden;
padding-top: 20px;
font-family: 'Roboto', sans-serif;
}
p#stream{
position: relative;
top: -15px;
}
</style>
<link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet">
</head>
<ul id="messages"></ul>
<script src="/socket.io/socket.io.js"></script>
<script>
var Vector2 = function (x,y) {
this.x = x || 0;
this.y = y || 0;
};
Vector2.prototype = {
reset: function ( x, y ) {
this.x = x;
this.y = y;
return this;
},
copyFrom : function (v) {
this.x = v.x;
this.y = v.y;
},
plusEq : function (v) {
this.x+=v.x;
this.y+=v.y;
return this;
},
minusEq : function (v) {
this.x-=v.x;
this.y-=v.y;
return this;
},
equals : function (v) {
return((this.x==v.x)&&(this.y==v.x));
}
};
var canvas,
c, // c is the canvas' context 2D
container,
halfWidth,
halfHeight,
leftTouchID = -1,
leftTouchPos = new Vector2(0,0),
leftTouchStartPos = new Vector2(0,0),
leftVector = new Vector2(0,0);
var temperature;
var socket = io(); // comment this out for better debugging
var sendFlag = false;
setupCanvas();
var mouseX, mouseY,
// is this running in a touch capable environment?
mouseDown = false,
touches = []; // array of touch vectors;
setInterval(draw, 1000/30); // draw app at 30fps
setInterval(sendControls, 1000/20); // send control input at 20fps
canvas.addEventListener( 'touchstart', onTouchStart, false );
canvas.addEventListener( 'touchmove', onTouchMove, false );
canvas.addEventListener( 'touchend', onTouchEnd, false );
window.onorientationchange = resetCanvas;
window.onresize = resetCanvas;
canvas.addEventListener( 'mousemove', onMouseMove, false );
canvas.addEventListener( 'mousedown', onMouseDown, false );
canvas.addEventListener( 'mouseup', onMouseUp, false );
function resetCanvas (e) {
// resize the canvas - but remember - this clears the canvas too.
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
//halfWidth = canvas.width/2;
halfWidth = canvas.width;
halfHeight = canvas.height/2;
//make sure we scroll to the top left.
window.scrollTo(0,0);
}
var rawLeft, rawRight, MaxJoy = 255, MinJoy = -255, MaxValue = 255,
MinValue = -255, RawLeft, RawRight, ValLeft, ValRight;
var leftMot = 0, rightMot = 0;
function Remap(value, from1, to1, from2, to2){
return (value - from1) / (to1 - from1) * (to2 - from2) + from2;
}
//source: http://www.dyadica.co.uk/basic-differential-aka-tank-drive/
function tankDrive(x, y){
// First hypotenuse
var z = Math.sqrt(x * x + y * y);
// angle in radians
var rad = Math.acos(Math.abs(x) / z);
if (isNaN(rad)) rad = 0;
// and in degrees
var angle = rad * 180 / Math.PI;
// Now angle indicates the measure of turn
// Along a straight line, with an angle o, the turn co-efficient is same
// this applies for angles between 0-90, with angle 0 the co-eff is -1
// with angle 45, the co-efficient is 0 and with angle 90, it is 1
var tcoeff = -1 + (angle / 90) * 2;
var turn = tcoeff * Math.abs(Math.abs(y) - Math.abs(x));
turn = Math.round(turn * 100) / 100;
// And max of y or x is the movement
var move = Math.max(Math.abs(y), Math.abs(x));
// First and third quadrant
if ((x >= 0 && y >= 0) || (x < 0 && y < 0)){
rawLeft = move;
rawRight = turn;
} else {
rawRight = move;
rawLeft = turn;
}
// Reverse polarity
if (y < 0) {
rawLeft = 0 - rawLeft;
rawRight = 0 - rawRight;
}
RawLeft = rawLeft;
RawRight = rawRight;
leftMot = Remap(rawLeft, MinJoy, MaxJoy, MinValue, MaxValue);
rightMot = Remap(rawRight, MinJoy, MaxJoy, MinValue, MaxValue);
}
function init(){
}
function draw() {
c.clearRect(0,0,canvas.width, canvas.height);
//if touch
for(var i=0; i<touches.length; i++) {
var touch = touches[i];
if(touch.identifier == leftTouchID){
c.beginPath();
c.strokeStyle = "white";
c.lineWidth = 6;
c.arc(leftTouchStartPos.x, leftTouchStartPos.y, 40,0,Math.PI*2,true);
c.stroke();
c.beginPath();
c.strokeStyle = "white";
c.lineWidth = 2;
c.arc(leftTouchStartPos.x, leftTouchStartPos.y, 60,0,Math.PI*2,true);
c.stroke();
c.beginPath();
c.strokeStyle = "white";
c.arc(leftTouchPos.x, leftTouchPos.y, 40, 0,Math.PI*2, true);
c.stroke();
} else {
c.beginPath();
c.fillStyle = "white";
//c.fillText("touch id : "+touch.identifier+" x:"+touch.clientX+" y:"+touch.clientY, touch.clientX+30, touch.clientY-30);
c.beginPath();
c.strokeStyle = "red";
c.lineWidth = "6";
c.arc(touch.clientX, touch.clientY, 40, 0, Math.PI*2, true);
c.stroke();
}
}
//if no touch
if(mouseDown){
c.beginPath();
c.strokeStyle = "white";
c.lineWidth = 6;
c.arc(leftTouchStartPos.x, leftTouchStartPos.y, 40,0,Math.PI*2,true);
c.stroke();
c.beginPath();
c.strokeStyle = "white";
c.lineWidth = 2;
c.arc(leftTouchStartPos.x, leftTouchStartPos.y, 60,0,Math.PI*2,true);
c.stroke();
c.beginPath();
c.strokeStyle = "white";
c.arc(leftTouchPos.x, leftTouchPos.y, 40, 0,Math.PI*2, true);
c.stroke();
c.fillStyle = "white";
//c.fillText("mouse : "+mouseX+", "+mouseY, mouseX, mouseY);
c.beginPath();
c.strokeStyle = "white";
c.lineWidth = "6";
c.arc(mouseX, mouseY, 40, 0, Math.PI*2, true);
c.stroke();
}
//c.fillText("Left Motor: " + leftMot + " Right Motor: " + rightMot, 10, 30);
//c.fillText("Left Vx: " + leftVector.x + " Left Vy: " + leftVector.y, 10, 50);
//c.fillText("Temperature: "+temperature+"°C", 10, 30);
socket.on('temp', function(msg){
document.getElementById("temp").innerHTML = parseInt(msg) + '°C';
temperature = msg;
});
socket.on('volt', function(msg){
voltage = msg;
if(voltage > 0){ // Don't show voltage without ADC
document.getElementById("volt").innerHTML = msg.toFixed(2) + 'V';
} else{
document.getElementById("volt").innerHTML = ' ';
}
});
socket.on('cam', function(msg){
document.getElementById("stream").innerHTML = img;
});
}
/*
* Touch event (e) properties :
* e.touches: Array of touch objects for every finger currently touching the screen
* e.targetTouches: Array of touch objects for every finger touching the screen that
* originally touched down on the DOM object the transmitted the event.
* e.changedTouches Array of touch objects for touches that are changed for this event.
* I'm not sure if this would ever be a list of more than one, but would
* be bad to assume.
*
* Touch objects :
*
* identifier: An identifying number, unique to each touch event
* target: DOM object that broadcast the event
* clientX: X coordinate of touch relative to the viewport (excludes scroll offset)
* clientY: Y coordinate of touch relative to the viewport (excludes scroll offset)
* screenX: Relative to the screen
* screenY: Relative to the screen
* pageX: Relative to the full page (includes scrolling)
* pageY: Relative to the full page (includes scrolling)
*/
function onTouchStart(e) {
for(var i = 0; i<e.changedTouches.length; i++){
var touch =e.changedTouches[i];
//console.log(leftTouchID + " "
if((leftTouchID<0) && (touch.clientX<halfWidth))
{
leftTouchID = touch.identifier;
leftTouchStartPos.reset(touch.clientX, touch.clientY);
leftTouchPos.copyFrom(leftTouchStartPos);
leftVector.reset(0,0);
continue;
} else {
makeBullet();
}
}
touches = e.touches;
}
function onMouseDown(event) {
leftTouchStartPos.reset(event.offsetX, event.offsetY);
leftTouchPos.copyFrom(leftTouchStartPos);
leftVector.reset(0,0);
mouseDown = true;
}
function onTouchMove(e) {
// Prevent the browser from doing its default thing (scroll, zoom)
e.preventDefault();
for(var i = 0; i<e.changedTouches.length; i++){
var touch =e.changedTouches[i];
if(leftTouchID == touch.identifier)
{
leftTouchPos.reset(touch.clientX, touch.clientY);
leftVector.copyFrom(leftTouchPos);
leftVector.minusEq(leftTouchStartPos);
sendFlag = true;
break;
}
}
touches = e.touches;
}
function onMouseMove(event) {
mouseX = event.offsetX;
mouseY = event.offsetY;
if(mouseDown){
leftTouchPos.reset(event.offsetX, event.offsetY);
leftVector.copyFrom(leftTouchPos);
leftVector.minusEq(leftTouchStartPos);
sendFlag = true;
}
}
function onTouchEnd(e) {
touches = e.touches;
for(var i = 0; i<e.changedTouches.length; i++){
var touch =e.changedTouches[i];
if(leftTouchID == touch.identifier)
{
leftTouchID = -1;
leftVector.reset(0,0);
leftMot = rightMot = 0;
sendFlag = true;
break;
}
}
}
function onMouseUp(event) {
leftVector.reset(0,0);
leftMot = rightMot = 0;
mouseDown = false;
sendFlag = true;
}
/*
Source for keyboard detection: Braden Best:
https://stackoverflow.com/questions/5203407/how-to-detect-if-multiple-keys-are-pressed-at-once-using-javascript
*/
var map = {};
onkeydown = onkeyup = function(e){
e = e || event; // to deal with IE
map[e.keyCode] = e.type == 'keydown';
if(map[38]){ // ArrowUp
leftVector.y = -255;
}
if(map[40]){ // ArrowDown
leftVector.y = 255;
}
if(map[37]){ // ArrowLeft
leftVector.x = -255;
}
if(map[39]){ // ArrowRight
leftVector.x = 255;
}
if(!map[38] && !map[40]){ // ArrowUp/Down is not pressed
leftVector.y = 0;
}
if(!map[37] && !map[39]){ // ArrowLeft/Right is not pressed
leftVector.x = 0;
}
if(leftVector.y == 0 && leftVector.x == 0) leftMot = rightMot = 0;
sendFlag = true;
}
function setupCanvas() {
canvas = document.createElement( 'canvas' );
c = canvas.getContext( '2d' );
container = document.createElement( 'div' );
container.className = "container";
document.body.appendChild( container );
container.appendChild(canvas);
resetCanvas();
c.strokeStyle = "#ffffff";
c.lineWidth =2;
}
function mouseOver(minX, minY, maxX, maxY){
return(mouseX>minX&&mouseY>minY&&mouseX<maxX&&mouseY<maxY);
}
function sendControls(){
if(sendFlag == true){
leftVector.x = Math.min(Math.max(parseInt(leftVector.x), -255), 255);
leftVector.y = Math.min(Math.max(parseInt(leftVector.y), -255), 255);
tankDrive(leftVector.x, -leftVector.y);
if(leftMot > 0) leftMot += 90;
if(leftMot < 0) leftMot -= 90;
if(rightMot > 0) rightMot += 90;
if(rightMot < 0) rightMot -= 90;
leftMot = Math.min(Math.max(parseInt(leftMot), -255), 255);
rightMot = Math.min(Math.max(parseInt(rightMot), -255), 255);
socket.emit('pos', leftMot, rightMot);
sendFlag = false;
}
}
</script>
<body scroll="no" style="overflow: hidden">
<center>
<p id="stream"></p>
<script>
// This script automatically picks the right IP for the stream
// Thanks to wonx (github.com/wonx)
host = window.location.hostname;
img = '<img src="http://' + host + ':9000/?action=stream" style="height:100vh;"/>';
//img = '<img src="stream.png" style="height:100vh;"/>';
document.getElementById("stream").innerHTML = img;
function takePicture() {
socket.emit('cam', 1);
}
function shutdown() {
if(confirm("This will shutdown the Pi.\nAre you sure?")){
alert('Shutting down...\nPlease wait 20s before turning the power off.');
socket.emit('power', 1);
}
}
// Handle headlight button
function handleHeadlightClick(cb) {
if (cb.checked) {
// Turn on headlight
headlight = 1;
} else {
// Turn off headlight
headlight = 0;
}
socket.emit('light', headlight);
}
</script>
</center>
<div class="sidenav">
<center id="temp" style="padding:40%;">0°C</center>
<center id="volt" style="padding:40%;">0V</center>
</div>
<div class="sidenav" style="right:0;z-index: 2;">
<center class="off_button" type="button" onclick="shutdown()">OFF</center>
<center class="cam_button" type="button" onclick="takePicture()"></center>
<div>
<div class="switch">
<input id="cmn-toggle"css class="cmn-toggle cmn-toggle-round-flat" type="checkbox" onclick="handleHeadlightClick(this)">
<label for="cmn-toggle">LIGHT</label>
</div>
</div>
</div>
<div style="position:fixed;bottom:40vh;right:0;padding:25px">
</div>
</body>
</html>