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HTML

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

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JavaScript

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JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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HTML 

              
                <canvas id="stage"></canvas>
!

CSS 

              
                body {
  background: rgb(28, 28, 28);
  height: 100%;
}
#stage {
  background: rgb(28, 28, 28);
  display: block;
}
!

JS 

              
                /**
     * requestAnimationFrame polyfill by Erik Möller & Paul Irish et. al.
     * https://gist.github.com/1866474
     *
     * http://paulirish.com/2011/requestanimationframe-for-smart-animating/
     * http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
    **/
    var lastTime = 0;
    var prefixes = 'webkit moz ms o'.split(' ');
    // get unprefixed rAF and cAF, if present
    var requestAnimationFrame = window.requestAnimationFrame;
    var cancelAnimationFrame = window.cancelAnimationFrame;
    // loop through vendor prefixes and get prefixed rAF and cAF
    var prefix;
    for( var i = 0; i < prefixes.length; i++ ) {
        if ( requestAnimationFrame && cancelAnimationFrame ) {
            break;
        }
        prefix = prefixes[i];
        requestAnimationFrame = requestAnimationFrame || window[ prefix + 'RequestAnimationFrame' ];
        cancelAnimationFrame  = cancelAnimationFrame  || window[ prefix + 'CancelAnimationFrame' ] ||
                                  window[ prefix + 'CancelRequestAnimationFrame' ];
    }
    // fallback to setTimeout and clearTimeout if either request/cancel is not supported
    if ( !requestAnimationFrame || !cancelAnimationFrame ) {
        requestAnimationFrame = function( callback, element ) {
            var currTime = new Date().getTime();
            var timeToCall = Math.max( 0, 16 - ( currTime - lastTime ) );
            var id = window.setTimeout( function() {
                callback( currTime + timeToCall );
            }, timeToCall );
            lastTime = currTime + timeToCall;
            return id;
        };
        cancelAnimationFrame = function( id ) {
            window.clearTimeout( id );
        };
    }
    // put in global namespace
    window.requestAnimationFrame = requestAnimationFrame;
    window.cancelAnimationFrame = cancelAnimationFrame;
    //END OF requestAnimationFrame polyfill
    
    var stage = document.getElementById('stage'), stageCtx = stage.getContext('2d');//Save canvas stage to variable
    stage.width = window.innerWidth - 20, stage.height = window.innerHeight - 20;
  //Set the word to be drawn, and space between each particle
    var bgWord = 'TIMMY',
        space = 6,
		speed = 20,
		size = 2,
		finishBuffer = 15,
		moveX,
		moveY,
		animatePart,
		partPos = {};
    
    var init = function() {
		//Fill the word on the canvas using text
		stageCtx.fillStyle = "rgba(255, 255, 255, 0.8)";
		stageCtx.font = "400px impact";
      stageCtx.textAlign = "center";
		stageCtx.fillText(bgWord, (stage.width / 2), (stage.height / 2) + 160);

		//Random number function
		function randomInt(min, max) {
			return Math.random() * (max - min) + min;
		}
	  
		var manageParticles = {
			coords: function() {
				//Get the image data for the entire canvas
				var imgData = stageCtx.getImageData(0, 0, stage.width, stage.height),
				pixPos,
				h,
				w,
				partTotal = 0;
				stage.width = stage.width;
				//Loop through every pixel on the canvas, leaving the space between
				for (h = 0; h < stage.height; h += space) {
					for (w = 0; w < stage.width; w += space) {
						pixPos = imgData.data[((stage.width * h) + w) * 4];
						if (pixPos == 255) {
							moveX = true;
							moveY = true;
							if (Math.round(randomInt(0, 1)) == 0) {
								moveX = false;
							}
							if (Math.round(randomInt(0, 1)) == 0) {
								moveY = false;
							}
							
							var partXSpeed = randomInt(0, speed), partYSpeed = randomInt(0, speed);
							
							partPos[partTotal] = {'x': w, 'y': h, 'startX': w, 'startY': h, 'xSpeed': partXSpeed, 'ySpeed': partYSpeed, 'moveX': moveX, 'moveY': moveY, 'end': false, 'reset': false};
							partTotal++;
						}
					}
				}
				manageParticles.render(partPos, partTotal);
			},
			render: function(partPos, partTotal) {
				
				for (var i = 0; i < partTotal; i++) {
					stageCtx.fillStyle = "rgba(255, 255, 255, 0.4)";
					stageCtx.beginPath();
					stageCtx.arc(partPos[i].x, partPos[i].y, size, 0, Math.PI*2, true);
					stageCtx.closePath();
					stageCtx.fill();
				}
				manageParticles.rearrange(partPos, partTotal);
			},
			rearrange: function(partPos, partTotal) {
				stage.addEventListener('click', move, false);
				function move() {
					stage.width = stage.width;
					var resetTotal = 0;
					for (var i = 0; i < partTotal; i++) {
						if (partPos[i].moveX == true) {
							if (partPos[i].reset == false) {
								partPos[i].x += partPos[i].xSpeed;
							}
						} else {
							if (partPos[i].reset == false) {
								partPos[i].x -= partPos[i].xSpeed;
							}
						}
						
						if (partPos[i].moveY == true) {
							if (partPos[i].reset == false) {
								partPos[i].y += partPos[i].ySpeed;
							}
						} else {
							if (partPos[i].reset == false) {
								partPos[i].y -= partPos[i].ySpeed;
							}
						}
						
						//Check if X and Y is bigger or smaller than startX and Y, and change direction depending
						//If X and Y is equal then set particle as reset
						//If rest total == particle total then end animation
						
						if (partPos[i].x >= stage.width) {
							//partPos[i].moveX = false;
							if (partPos[i].x >= partPos[i].startX) {
								partPos[i].moveX = false;
								partPos[i].end = true;
							} else {
								partPos[i].moveX = true;
								partPos[i].end = true;
							}
						}
						if (partPos[i].x <= 0) {
							//partPos[i].moveX = true;
							if (partPos[i].x < partPos[i].startX) {
								partPos[i].moveX = true;
								partPos[i].end = true;
							} else {
								partPos[i].moveX = false;
								partPos[i].end = true;
							}
						}
						if (partPos[i].y >= stage.height) {
							//partPos[i].moveY = false;
							if (partPos[i].y >= partPos[i].startY) {
								partPos[i].moveY = false;
								partPos[i].end = true;
							} else {
								partPos[i].moveY = true;
								partPos[i].end = true;
							}
						}
						if (partPos[i].y <= 0) {
							//partPos[i].moveY = true;
							if (partPos[i].y < partPos[i].startY) {
								partPos[i].moveY = true;
								partPos[i].end = true;
							} else {
								partPos[i].moveY = false;
								partPos[i].end = true;
							}
						}
						
						if (partPos[i].reset == false && partPos[i].end == true) {
							if (partPos[i].x < partPos[i].startX + finishBuffer && partPos[i].x > partPos[i].startX - finishBuffer && partPos[i].y < partPos[i].startY + finishBuffer && partPos[i].y > partPos[i].startY - finishBuffer) {
								partPos[i].reset = true;
								resetTotal++;
							}
						}
						if (partPos[i].reset == true) {
							stageCtx.fillStyle = "rgba(255, 255, 255, 0.4)";
						} else {
							stageCtx.fillStyle = "rgba(255, 255, 255, 0.2)";
						}
						stageCtx.beginPath();
						stageCtx.closePath();
						stageCtx.arc(partPos[i].x, partPos[i].y, size, 0, Math.PI*2, true);
						stageCtx.fill();
						
						if (resetTotal == partTotal) {
							window.cancelAnimationFrame(move);
						}
					}
					animatePart = requestAnimationFrame(move);
				}
			}
		}
      manageParticles.coords();
    }
    init();
!
999px

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