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Wallpaper Engine > 创意工坊 > Nullctipus 的创意工坊

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Matrix Randomizer

描述讨论0 留言24 改动说明

奖励

Type: Web

Age Rating: Everyone

Genre: Technology

Resolution: Dynamic resolution

Category: Wallpaper

文件大小

发表于

265.610 KB

2017 年 9 月 6 日上午 5:13

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描述

you may use the code in anything you want just credit me in a comment

completly randomized
Code is under me if you want to check it
<html>
<head>
<style>

/*basic reset */

*{
margin: 0;
padding: 0;
}

body {background: black;}
canvas {display:block;}

</style>
</head>
<body>

<canvas id="c"></canvas>

<script>
// geting canvas by id c
var c = document.getElementById("c");
var ctx = c.getContext("2d");

//making the canvas full screen
c.height = window.innerHeight;
c.width = window.innerWidth;

//chinese characters - can be taken from the unicode charset
var matrix = "ABCDEFGHIJKLMNOPQRSTUVWXYZ123456789@#$%^&*()*&^%";
//converting the string into an array of single characters
matrix = matrix.split("");

var font_size = 10;
var columns = c.width/font_size; //number of columns for the rain
//an array of drops - one per column
var drops = [];
//x below is the x coordinate
//1 = y co-ordinate of the drop(same for every drop initially)
for(var x = 0; x < columns; x++)
drops[x] = 1;

//drawing the characters
function draw()
{
//Black BG for the canvas
//translucent BG to show trail
ctx.fillStyle = "rgba(0, 0, 0, 0.04)";
ctx.fillRect(0, 0, c.width, c.height);

ctx.fillStyle = "#0F0"; //green text
ctx.font = font_size + "px arial";
//looping over drops
for(var i = 0; i < drops.length; i++)
{
//a random chinese character to print
var text = matrix[Math.floor(Math.random()*matrix.length)];
//x = i*font_size, y = value of drops*font_size
ctx.fillText(text, i*font_size, drops*font_size);

//sending the drop back to the top randomly after it has crossed the screen
//adding a randomness to the reset to make the drops scattered on the Y axis
if(drops*font_size > c.height && Math.random() > 0.975)
drops = 0;

//incrementing Y coordinate
drops++;
}
}

setInterval(draw, 35);

//script by BustR75
</script>
</body>
</html>