Canvas snake animation random bezier curve looped

Developer
Sladix
Size
2,882 Kb
Views
8,096
  1. Canvas snake animation random bezier curve looped Previews
  2. Canvas snake animation random bezier curve looped HTML Codes
  3. Canvas snake animation random bezier curve looped CSS Codes
  4. Canvas snake animation random bezier curve looped JS Codes

How do I make an canvas snake animation random bezier curve looped?

What is a canvas snake animation random bezier curve looped? How do you make a canvas snake animation random bezier curve looped? This script and codes were developed by Sladix on 09 December 2022, Friday.

Canvas snake animation random bezier curve looped Previews
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Canvas snake animation random bezier curve looped - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Canvas snake animation random bezier curve looped</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <div id="title">
<canvas id="myCanvas"></canvas>
</div> <script src="js/index.js"></script>
</body>
</html>

Canvas snake animation random bezier curve looped - Script Codes CSS Codes

body{ background:black;
}
#title
{ height: 100%; width:100%;
}

Canvas snake animation random bezier curve looped - Script Codes JS Codes

function Vector2(x,y)
{	this.x = x;	this.y = y;
}
function getRandomInt (min, max) { return Math.floor(Math.random() * (max - min + 1)) + min;
}
function Track(position)
{	this.position = position;	this.draw = function(context){	context.beginPath(); context.rect(this.position.x, this.position.y, 20, 20); context.fillStyle = '#43ED00'; context.fill(); context.lineWidth = 1; context.strokeStyle = '#111'; context.stroke();	}
}
var startTime;
window.onload = function(){	document.getElementById('myCanvas').width = document.getElementById('title').offsetWidth;	document.getElementById('myCanvas').height = document.getElementById('title').offsetHeight;	setTimeout(function() { startTime = (new Date()).getTime(); animate(startTime); }, 1000);
}
var timer = 0;
var totalLoopTime = 10000;
window.requestAnimFrame = (function(callback) {	return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame ||	function(callback) { window.setTimeout(callback, 1000 / 60);	};
})();
var path = [];
var ttd = [];
function animate(startTime) {	if(ttd.length>100)	ttd.shift();	var canvas = document.getElementById('myCanvas');	var context = canvas.getContext('2d');	// update	timer = (new Date()).getTime() - startTime;	if(path.length == 0)	path = generateRandomPoints(canvas);	else	{	var nexPoint = getNextCoordinates(startTime, totalLoopTime, path);	ttd.push(new Track(nexPoint));	}	// clear	context.clearRect(0, 0, canvas.width, canvas.height);	// draw stuff	for (var i = ttd.length - 1; i >= 0; i--) {	ttd[i].draw(context);	};	// request new frame	requestAnimFrame(function() { animate(startTime);	});
}
function getTimer(){	return timer;
}
function generateRandomPoints(context)
{ var resultingVector = []; for(var i = 0; i < 6; i++) { var x = getRandomInt(0,context.offsetWidth); var y = getRandomInt(0,context.offsetHeight); var currentPoint3D = new Vector2(x, y); resultingVector.push(currentPoint3D); } return resultingVector;
}
function getNextCoordinates(loopStartTime, totalLoopTime, path) { var resultingPoint = new Vector2(); var passedTime = timer; //Total passed ratio var passedRatio = passedTime / totalLoopTime; var totalSegments = path.length / 3; var totalTimePerSegment = totalLoopTime / totalSegments; //So it can loop forever while (passedRatio > 1) { passedRatio -= 1; } //Let's find our current bezier curve segment number var currentSegment = Math.floor( passedRatio * totalSegments); var currentSegmentRatio = (passedTime - currentSegment * totalTimePerSegment) / totalTimePerSegment; //It can be optimized here while (currentSegmentRatio > 1) { currentSegmentRatio -= 1; } var startingIndex = currentSegment * 3; if(startingIndex == path.length)	startingIndex = 0; //our four path vertices var point0 = path[startingIndex]; var point1 = path[startingIndex + 1]; var point2 = path[startingIndex + 2]; //if it's a last segment, we need to "connect" to the first vertex if (startingIndex + 3 >= path.length) { var point3 = path[0]; } else { point3 = path[startingIndex + 3]; } //At last, we find our coordinates if(typeof point0 == "undefined") {	console.log(startingIndex);	console.log(loopStartTime);	console.log(path); } var tempRatio = 1 - currentSegmentRatio; resultingPoint.x = tempRatio * tempRatio * tempRatio * point0.x + 3 * tempRatio * tempRatio * currentSegmentRatio * point1.x + 3 * tempRatio * currentSegmentRatio * currentSegmentRatio * point2.x + currentSegmentRatio * currentSegmentRatio * currentSegmentRatio * point3.x; resultingPoint.y = tempRatio * tempRatio * tempRatio * point0.y + 3 * tempRatio * tempRatio * currentSegmentRatio * point1.y + 3 * tempRatio * currentSegmentRatio * currentSegmentRatio * point2.y + currentSegmentRatio * currentSegmentRatio * currentSegmentRatio * point3.y; return resultingPoint; }
Canvas snake animation random bezier curve looped - Script Codes
Canvas snake animation random bezier curve looped - Script Codes
Home Page Home
Developer Sladix
Username Sladix
Uploaded December 09, 2022
Rating 3
Size 2,882 Kb
Views 8,096
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