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              <h1>Drag the red arrow to choose your food</h1>
<p id=orderOptionSelectedName>Donut</p>
<br>
<div id=orderPicker>
	<div id=orderPickerOptionsWrapper>
		<img src="Dunking/128/Donut_2.png" data-name="Donut" style="width:90px; top:20px; left: calc(50% - 40px);"/>
		<img src="ie_yummy/128/cake_7.png" data-name="Pie" style="right: 20px; top: calc(50% - 40px);"/>
		<img src="ie_yummy/128/cake_20.png" data-name="Cake" style="bottom: 20px; left: calc(50% - 40px);"/>
		<img src="ie_yummy/128/cake_15.png" data-name="Cupcake" style="left: 20px; top: calc(50% - 40px);"/>
	</div>
	<div id=orderPickerArrowWrapper>
		<div id=orderPickerArrow></div>
	</div>
</div>
<p id=credit>✰ Icons by IconBlock and IconEden via Iconfinder.</a></p>
            
          
!
            
              #orderPicker {
	--orderPickerSize: 250px;
	width: var(--orderPickerSize); height: var(--orderPickerSize);
	margin: auto; margin-top: 60px;
	position: relative;
	border-radius: 50%;
	box-shadow: inset 0 0 10px 0 hsl(210,25%,60%);
	background-color: beige;
}
#orderPicker::before{
	width: 120%; height: 120%;
	background-image: linear-gradient(45deg, deeppink 30% , gold);
	content: ''; 
	border-radius: 50%;
	z-index: -1;
	position: absolute; left: -10%; top: -10%;
}

#orderPickerOptionsWrapper, #orderPickerArrowWrapper {
	width: 100%; height: 100%;
	position: absolute;
}

#orderPickerOptionsWrapper,#orderOptionSelectedName{
	user-select: none; -webkit-user-select: none; -moz-user-select: none;
}

#orderPickerOptionsWrapper > img {
	width: 75px;
	position: absolute;
	transition: width .5s cubic-bezier(.8,-.5,.2,1.4);
}
/* individual image placement is done inline, so see the HTML for that */

#orderPickerArrow{
	width: 0; height: 0;
	border-left: 20px solid transparent;
	border-right: 20px solid transparent;
	border-top: 20px solid crimson;
	transform: translateX(calc( var(--orderPickerSize) / 2 - 20px));
	cursor: pointer;
}

#orderOptionSelectedName {
	width: 200px; height: 35px;
	margin: auto;
	font-size: 18pt;
	box-shadow: inset 0 0 5px 0 hsl(210,25%,60%);
	background-color: beige;
	border-radius: 5px;
}

h1, #orderOptionSelectedName {
	text-align: center;
}

h1 {
	color: beige;
	text-shadow: 1px 1px 0 #000;
}

body {
	font-family: 'Crimson Text', serif;
	background: linear-gradient(45deg, gold 50%, deeppink 50%);
	height: 100vh;
}

#credit{
	text-align: center;
	font-size: 14pt;
	color: crimson;
	text-shadow: 1px 1px beige;
	margin-top: 100px;
	width: 100%;
}

@media (max-width: 420px){
	h1, #credit{
		display: none;
	}
}
            
          
!
            
              const pickerOptions = document.querySelectorAll('#orderPickerOptionsWrapper > img');
// get the list of angles that delimit the options in the picker
const øArray = [];
for(i=0, ø=(2 * Math.PI)/pickerOptions.length; i<pickerOptions.length; i++)
		øArray[i]=(i*ø) - (ø/2);


// add mouse event listeners 
const arrow = document.querySelector('#orderPickerArrow');
arrow.addEventListener('mousedown', () => {document.addEventListener('mousemove', onMouseMove)});
arrow.addEventListener('touchmove', () => {document.addEventListener('touchmove', onMouseMove)});
document.addEventListener('mouseup',() => {
	document.body.style.cursor = 'default';
	if(document.onmousemove !== undefined) document.removeEventListener('mousemove',onMouseMove);
})
document.addEventListener('touchend',() => {
	if(document.onmousemove !== undefined) document.removeEventListener('touchmove',onMouseMove);
})


// get the coordinates of the picker's topmost point (where the arrow resides at the beginning) – this will be the reference point for rotating the arrow later
const picker = document.querySelector('#orderPicker');
const pickerStyle = getComputedStyle(picker);
const x = picker.offsetLeft + (parseInt(pickerStyle['width'], 10) / 2);
const y = picker.offsetTop + (parseInt(pickerStyle['height'], 10) / 2);


const arrowWrapper = document.querySelector('#orderPickerArrowWrapper');
const optionWidth = pickerOptions[1].style.width;
const label = document.querySelector('#orderOptionSelectedName');
const pickerOptionsArray = Array.prototype.slice.call(pickerOptions);
/* The function to rotate arrow */
function onMouseMove(evt){
	// calculate the angle for the rotation, then rotate the arrow
	let ø = 0;
	if(evt.type=='touchmove')
		ø = -1 * Math.atan2(evt.touches[0].clientX - x, evt.touches[0].clientY - y) + Math.PI;
	else
		ø = -1 * Math.atan2(evt.clientX - x, evt.clientY - y) + Math.PI;
	arrowWrapper.style.transform = `rotate(${ø}rad)`;
	// remove any option's zoom in style
	let zoomedEle = pickerOptionsArray.find(element => {return element.style.width != optionWidth})
	if(zoomedEle) zoomedEle.style.width = optionWidth;
	// find the option the arrow rotated to and zoom in on it to select
	let i = øArray.indexOf(øArray.reduce((accumulator, currentValue)=>{
		if (currentValue<=ø && currentValue>=accumulator) return currentValue;
		else return accumulator;
	}));
	pickerOptions[i].style.width= '90px';
	// update the label (at the top of the picker) with the selected option
	label.textContent = pickerOptions[i].dataset.name;
}
            
          
!
999px

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