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main.html
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main.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=640px">
<script src="http://code.jquery.com/jquery-2.0.3.min.js"></script>
<script type="text/javascript">
var speed = 0,
direction = 0.5;
function sendEvent() {
if (!$("#use-accel").is(':checked')) {
return;
}
console.log("test");
$.get("/set_speed/" + speed);
$.get("/set/" + direction);
}
if (window.DeviceOrientationEvent) {
window.addEventListener('deviceorientation', function(e) {
if (!$("#use-accel").is(':checked')) {
return;
}
var speed_angle = event.beta - 40;
var steer_angle = event.alpha;
speed_angle = -1 * Math.min(Math.max(-30, speed_angle), 30).toFixed(1);
if (steer_angle > 180) {
steer_angle = steer_angle - 360;
}
if (Math.abs(speed_angle) < 5) {
$(".forward").hide();
$(".backward").hide();
speed = 0;
} else {
if (speed > 0) {
$(".forward").show();
$(".backward").hide();
$(".forward").css("opacity", speed);
} else {
$(".forward").hide();
$(".backward").show();
$(".backward").css("opacity", -1 * speed);
}
speed = speed_angle / 30;
}
if (steer_angle < -10) {
$(".left").hide();
$(".right").show();
direction = -1;
} else if (steer_angle > 10) {
$(".left").show();
$(".right").hide();
direction = 1;
} else {
$(".left").hide();
$(".right").hide();
direction = 0;
}
$(".accel").html(speed.toFixed(1) + " " + direction);
}, false);
} else {
$(".accel").html("Orientation not supported.");
}
$(function() {
$("input").change(function() {
var val = $(this).val();
if($(this).attr("name") == "steering") {
if (val == direction) {
return;
}
direction = val;
var url = "/set/";
val = val * -1;
$.get(url+(val));
} else {
if (val == speed) {
return;
}
speed = val;
var url = "/set_speed/";
$.get(url+val);
}
});
$("body").keydown(function(e) {
var keyCode = e.which;
e.preventDefault();
switch(keyCode) {
case 38:
$("#speed").val(1).trigger("change");
$(".backward").hide();
$(".forward").show();
break;
case 40:
$("#speed").val(-1).trigger("change");
$(".forward").hide();
$(".backward").show();
break;
case 37:
$("#steering").val(-1).trigger("change");
$(".right").hide();
$(".left").show();
break;
case 39:
$("#steering").val(1).trigger("change");
$(".left").hide();
$(".right").show();
break;
}
});
$("body").keyup(function(e) {
var keyCode = e.which;
if (keyCode == 38 || keyCode == 40) {
$("#speed").val(0).trigger("change");
$(".arrow.forward").hide();
$(".arrow.backward").hide();
} else if (keyCode == 37 || keyCode == 39) {
$("#steering").val(0).trigger("change");
$(".arrow.left").hide();
$(".arrow.right").hide();
}
});
});
setInterval(sendEvent, 50);
</script>
<style type="text/css">
html, body {
margin: 0;
padding: 0;
width: 100%;
text-align: center;
}
input[type=range] {
display: none;
}
#stream-container {
width: 640px;
height: 480px;
margin-left: auto;
margin-right: auto;
position: relative;
}
.arrow {
position: absolute;
width: 0;
height: 0;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-bottom: 50px solid rgba(0, 100, 255, 0.5);
display: none;
}
.forward {
left: 270px;
top: 0px;
}
.backward {
left: 270px;
bottom: 0px;
-ms-transform: rotate(180deg); /* IE 9 */
-webkit-transform: rotate(180deg); /* Chrome, Safari, Opera */
transform: rotate(180deg);
}
.left {
left: -25px;
top: 200px;
-ms-transform: rotate(270deg); /* IE 9 */
-webkit-transform: rotate(270deg); /* Chrome, Safari, Opera */
transform: rotate(270deg);
}
.right {
right: -25px;
top: 200px;
-ms-transform: rotate(90deg); /* IE 9 */
-webkit-transform: rotate(90deg); /* Chrome, Safari, Opera */
transform: rotate(90deg);
}
</style>
</head>
<body>
<input type="range" name="speed" id="speed" min="-1", max="1", step="0.05" />
<input type="range" name="steering" id="steering" min="-1", max="1", step="0.05" />
<input type="checkbox" id="use-accel"><label for="use-accel">Use acceleration</label>
<div id="stream-container">
<div class="arrow forward"></div>
<div class="arrow left"></div>
<img id="stream" src='/stream.avi' alt='stream'/>
<div class="arrow right"></div>
<div class="arrow backward"></div>
</div>
<div class="accel"></div>
</body>
</html>