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Create mainfile #3

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97 changes: 97 additions & 0 deletions mainfile
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Original file line number Diff line number Diff line change
@@ -0,0 +1,97 @@
<!DOCTYPE html>
<html>
<head>
<title>cavas</title>
<meta charset="utf-8">
<style type="text/css">
body {
margin: 0px;
}
canvas {

}
</style>
</head>
<body>
<canvas width="400px" height="400px"id="canvas">

</canvas>
<script>
var canvas = document.getElementById("canvas");
var c = canvas.getContext("2d");
window.onload = function () {
canvas.setAttribute("width",window.innerWidth+"px");
canvas.setAttribute("height",window.innerHeight+"px");
reDraw();
};

window.onresize = function () {
c.canvas.width = window.innerWidth;
c.canvas.height = window.innerHeight;
reDraw();
};


function reDraw() {

var arr = [];
function Circle(x,y,xv,yv,r,color) {
this.x = x;
this.y = y;
this.xv = xv;
this.yv = yv;
this.r = r;
this.color = color;

this.draw = function() {
c.beginPath();
c.arc(this.x,this.y,this.r,0,Math.PI * 2,false);
c.stroke();
c.fillStyle = this.color;
c.fill();
}

this.update = function() {
if(this.x + this.r > canvas.width || this.x - this.r < 0 ) {
this.xv = (-this.xv);
}
if(this.y + this.r > canvas.height || this.y - this.r < 0 ) {
this.yv = (-this.yv);
}
this.x+=this.xv;
this.y+=this.yv;
this.draw();
}
}

var color = ["#8E56BF","#5F3980","#BE73FF","#2F1D40","#AB67E6","#7BFFED"];
for (var i = 0 ; i < 400 ; i++) {
var randomR = Math.floor(Math.random() * 10);
var randomX = Math.random() * canvas.width;
var randomY = Math.random() * canvas.height;
var randomXV = Math.floor(Math.random() * 4+1);
var randomYV = Math.floor(Math.random() * 4+1);
if(randomX < randomR*2 && randomX > canvas.width - randomR *2) {
var randomX = ( Math.random() * canvas.width);
}
if(randomY < randomR*2 && randomY > canvas.height - randomR *2) {
var randomY = ( Math.random() * canvas.height);
}
arr.push(new Circle(randomX,randomY,randomXV,randomYV,randomR,color[Math.floor(Math.random() * color.length)]))
}


function animate() {
c.clearRect(0,0,canvas.width,canvas.height)
for (var i = 0; i < arr.length; i++) {
arr[i].update();
}
requestAnimationFrame(animate);
}
animate()
}

</script>
<marquee style: top="20px";>fly <img src="https://cms-assets.tutsplus.com/uploads/users/1112/posts/25209/final_image/animate-bird-slide-25.gif" width="200" height="200" alt="Tutorials " border="0"></marquee>
</body>
</html>