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HTML

            
              <h1 class="title">TIKS League &mdash; Masala Idli Edition</h1>
<div id="react-root"></div>
!

CSS

            
              html {
	width: 100%;
	height: 100%;
	background: #219eb0; //radial-gradient(50% 16%, circle, 32%, #3f679d 88%);
}

.title {
	margin-top: 1.25em;
	color: #eee;
	text-align: center;
	text-shadow: 1px 1px 0 black;
}

.items {
	padding: 5px;
}

.item {
	width: calc((100% / 4) - 26px);
	height: 40px;
	padding: 1em 0 1.25em;
	user-select: none;
	position: absolute;
	border-radius: 3px;
	box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.2);
	background: rgba(255, 255, 255, 0.75);
	transition: background-color 0.1s ease-in-out;
	cursor: grab;
	text-align: center;

	&.is-active {
		background: rgba(255, 255, 255, 0.9);
		cursor: grabbing;
	}
	
	&.unavailable {
		opacity: 0.5;
	}
	
	&.player-female {
		background: rgba(120, 255, 255, 1);
	}
	
	&.captain {
		border-radius: 20px;
	}
}

.download{
	position: absolute;
	top: 0px;
	right: 0px;
	margin: 1em;
	background: white;
	padding: 0.5em;
	border-radius: 0.5em;
	font-size: 0.8em;
	color: grey;
	text-decoration: none;
}
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JS

            
              const dataStructure = [[{"gender":"M","captain":"Yes","name":"Bullet","availability":5},{"gender":"M","captain":"Yes","name":"Birdie","availability":3},{"gender":"M","captain":"No","name":"Prajwal","availability":3},{"gender":"F","captain":"No","name":"Aishu","availability":3},{"gender":"M","captain":"No","name":"Khush","availability":4},{"gender":"M","captain":"No","name":"Kasi","availability":4},{"gender":"F","captain":"No","name":"Saru","availability":4},{"gender":"M","captain":"No","name":"Poba","availability":4},{"gender":"F","captain":"No","name":"Smitha","availability":5},{"gender":"F","captain":"No","name":"Ishani","availability":2},{"gender":"M","captain":"No","name":"Nico","availability":4},{"gender":"M","captain":"No","name":"Varun","availability":4},{"gender":"F","captain":"No","name":"Janya","availability":4},{"gender":"M","captain":"No","name":"Daadi","availability":3},{"gender":"M","captain":"No","name":"Venky","availability":4},{"gender":"F","captain":"No","name":"Tejaswini","availability":4}],[{"gender":"M","captain":"Yes","name":"Yogi","availability":5},{"gender":"M","captain":"Yes","name":"Vinuth","availability":3},{"gender":"F","captain":"No","name":"Nikki","availability":3},{"gender":"M","captain":"No","name":"Tarle","availability":4},{"gender":"M","captain":"No","name":"Pavan","availability":3},{"gender":"M","captain":"No","name":"Ranjan","availability":3},{"gender":"F","captain":"No","name":"Krupa","availability":4},{"gender":"M","captain":"No","name":"Sailesh","availability":5},{"gender":"M","captain":"No","name":"Rakshith","availability":2},{"gender":"F","captain":"No","name":"Meghana","availability":5},{"gender":"F","captain":"No","name":"Manjushree","availability":4},{"gender":"M","captain":"No","name":"Vamsi","availability":3},{"gender":"M","captain":"Yes","name":"Sathvik","availability":3},{"gender":"M","captain":"Yes","name":"Achinth","availability":3},{"gender":"F","captain":"No","name":"Shruthi","availability":3},{"gender":"M","captain":"No","name":"Sourabh","availability":4}],[{"gender":"M","captain":"Yes","name":"Vivek","availability":5},{"gender":"M","captain":"Yes","name":"Kale","availability":4},{"gender":"F","captain":"No","name":"Prats","availability":3},{"gender":"M","captain":"No","name":"Adarsh","availability":4},{"gender":"F","captain":"No","name":"Stan","availability":4},{"gender":"M","captain":"No","name":"Anirudh","availability":5},{"gender":"M","captain":"No","name":"Tariq","availability":2},{"gender":"M","captain":"No","name":"Venkata","availability":4},{"gender":"M","captain":"No","name":"Pravin","availability":4},{"gender":"M","captain":"No","name":"Boba","availability":4},{"gender":"F","captain":"No","name":"Sheetal","availability":4},{"gender":"M","captain":"No","name":"Sasi","availability":5},{"gender":"M","captain":"No","name":"Nikhil","availability":1},{"gender":"M","captain":"Yes","name":"Akilesh","availability":4},{"gender":"F","captain":"No","name":"Revati","availability":4},{"gender":"M","captain":"No","name":"Yash","availability":5},{"gender":"F","captain":"No","name":"Radhika","availability":4}],[{"gender":"M","captain":"Yes","name":"KK","availability":5},{"gender":"M","captain":"Yes","name":"Rajan","availability":4},{"gender":"M","captain":"No","name":"Punch","availability":5},{"gender":"F","captain":"No","name":"Krish","availability":4},{"gender":"F","captain":"No","name":"Varsha","availability":3},{"gender":"M","captain":"No","name":"Kedar","availability":4},{"gender":"M","captain":"No","name":"Saqlain","availability":3},{"gender":"F","captain":"No","name":"Ashwini","availability":1},{"gender":"F","captain":"No","name":"Charmaine","availability":4},{"gender":"M","captain":"No","name":"Anup","availability":5},{"gender":"F","captain":"No","name":"Poori","availability":3},{"gender":"M","captain":"No","name":"Daanish","availability":4},{"gender":"F","captain":"No","name":"Varshini","availability":5},{"gender":"M","captain":"No","name":"Amith","availability":3},{"gender":"M","captain":"No","name":"Tausif","availability":1},{"gender":"M","captain":"No","name":"Ashrith","availability":4}]]

const reinsert = (array, colFrom, rowFrom, colTo, rowTo) => {
    const _array = array.slice(0);
    const val = _array[colFrom][rowFrom];
    _array[colFrom].splice(rowFrom, 1);
    _array[colTo].splice(rowTo, 0, val);
    calculateVisiblePositions(_array);
    return _array;
}

const gutterPadding = 21;
const clamp = (n, min, max) => Math.max(Math.min(n, max), min);
const getColumnWidth = () => (window.innerWidth / dataStructure.length) - (gutterPadding / dataStructure.length); // spread columns over available window width
const height = 50; // crappy fixed item height :(

let width = getColumnWidth(),
    layout = null;

// items are ordered by their index in this visual positions array
const calculateVisiblePositions = (newOrder) => {
    width = getColumnWidth();
    layout = newOrder.map((column, col) => {
       return _.range(column.length + 1).map((item, row) => {
           return [width * col, height * row];
       });
   });
}

// define spring motion opts
const springSetting1 = {stiffness: 180, damping: 10};
const springSetting2 = {stiffness: 150, damping: 16};

const List = React.createClass({
    getInitialState() {
        return {
            mouse: [0, 0],
            delta: [0, 0], // difference between mouse and item position, for dragging
            lastPress: null, // key of the last pressed component
            currentColumn: null,
            isPressed: false,
            order: dataStructure, // index: visual position. value: component key/id
            isResizing: false
        };
    },

    componentWillMount() {
        this.resizeTimeout = null;
        calculateVisiblePositions(dataStructure);
    },

    componentDidMount() {
        window.addEventListener('touchmove', this.handleTouchMove);
        window.addEventListener('mousemove', this.handleMouseMove);
        window.addEventListener('touchend', this.handleMouseUp);
        window.addEventListener('mouseup', this.handleMouseUp);
        window.addEventListener('resize', this.handleResize);
    },

    componentWillUnmount() {
        window.removeEventListener('resize', this.handleResize);
    },

    handleTouchStart(key, currentColumn, pressLocation, e) {
        this.handleMouseDown(key, currentColumn, pressLocation, e.touches[0]);
    },

    handleTouchMove(e) {
        e.preventDefault();
        this.handleMouseMove(e.touches[0]);
    },

    handleMouseMove({pageX, pageY}) {
        const {order, lastPress, currentColumn: colFrom, isPressed, delta: [dx, dy]} = this.state;
        if (isPressed) {
            const mouse = [pageX - dx, pageY - dy];
            const colTo = clamp(Math.floor((mouse[0] + (width / 2)) / width), 0, 3);
            const rowTo = clamp(Math.floor((mouse[1] + (height / 2)) / height), 0, 100);
            const rowFrom = order[colFrom].indexOf(lastPress);
            const newOrder = reinsert(order, colFrom, rowFrom, colTo, rowTo);
            this.setState({
                mouse,
                order: newOrder,
                currentColumn: colTo
            });
        }
    },

    handleMouseDown(key, currentColumn, [pressX, pressY], {pageX, pageY}) {
        this.setState({
            lastPress: key,
            currentColumn,
            isPressed: true,
            delta: [pageX - pressX, pageY - pressY],
            mouse: [pressX, pressY],
        });
    },

    handleMouseUp() {
        this.setState({
            isPressed: false,
            delta: [0, 0]
        });
    },

    handleResize() {
        clearTimeout(this.resizeTimeout);
        this.applyResizingState(true);
        // resize one last time after resizing stops, as sometimes this can be a little janky sometimes...
        this.resizeTimeout = setTimeout(() => this.applyResizingState(false), 100);
    },

    applyResizingState(isResizing) {
        this.setState({ isResizing });
        calculateVisiblePositions(dataStructure);
    },

    render() {
        const { order, lastPress, currentColumn, isPressed, mouse, isResizing } = this.state;
		  const blob = new Blob([JSON.stringify(order)], {type : 'text/plain'});
		  const url = window.URL.createObjectURL(blob);
        return (
            <div className="items">
                {order.map( (column, colIndex) => {
                    return (
                        column.map( (row) => {
                            let style,
                                x,
                                y,
                                visualPosition = order[colIndex].indexOf(row),
                                isActive = (row === lastPress && colIndex === currentColumn && isPressed),
										  playerType = row['gender'] === 'F' ? ' player-female ' : ' player-male ',
										  isCaptain = row['captain'] === 'Yes' ? ' captain ': ' ',
										  availability = row['availability'] < 3 ? ' unavailable ': ' ',
										  className = playerType + availability + (isActive ? ' item is-active ' : ' item ') + isCaptain;

                            if(isActive) {
                                [x, y] = mouse;
                                style = {
                                    translateX: x,
                                    translateY: y,
                                    scale: ReactMotion.spring(1.1, springSetting1)
                                };
                            } else if(isResizing) {
                                [x, y] = layout[colIndex][visualPosition];
                                style = {
                                    translateX: x,
                                    translateY: y,
                                    scale: 1
                                };
                            } else {
                                [x, y] = layout[colIndex][visualPosition];
                                style = {
                                    translateX: ReactMotion.spring(x, springSetting2),
                                    translateY: ReactMotion.spring(y, springSetting2),
                                    scale: ReactMotion.spring(1, springSetting1)
                                };
                            }

                            return (
                                <ReactMotion.Motion key={row.name} style={style}>
                                    {({translateX, translateY, scale}) =>
									 
                                    <div
                                        onMouseDown={this.handleMouseDown.bind(null, row, colIndex, [x, y])}
                                        onTouchStart={this.handleTouchStart.bind(null, row, colIndex, [x, y])}
                                        className={className}
                                        style={{
                                            WebkitTransform: `translate3d(${translateX}px, ${translateY}px, 0) scale(${scale})`,
                                            transform: `translate3d(${translateX}px, ${translateY}px, 0) scale(${scale})`,
                                            zIndex: (row === lastPress && colIndex === currentColumn) ? 99 : visualPosition,
                                        }}>{row.name}</div>
                                    }
                                </ReactMotion.Motion>
                            )
                        })
                    )
                })}
				  <div className="controls">
					  <a className="download" href={url} download="tiks-league-teams.txt">Download</a>
				  </div>
			  </div>
        )
    }
});

ReactDOM.render(<List />, document.getElementById('react-root'));
!
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