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黑客入侵动图特效实现

news 来源：原创 2025/5/22 14:10:09

黑客入侵动图特效

引言

在网页设计中，按钮是用户交互的重要元素之一。一个炫酷的按钮特效不仅能提升用户体验，还能为网页增添独特的视觉吸引力。今天，我们将通过CSS和JavaScript来实现一个“黑客入侵”动图特效。

效果预览

在开始之前，我们先来看一下最终的效果：

在这里插入图片描述

实现步骤

1. `index.html`（部分代码）

首先，我们需要创建一个简单的HTML结构。

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>黑客特效</title>
  <link rel="stylesheet" href="assets/css/style.css">

</head>
<body>
<!-- partial:index.partial.html -->
<canvas class='hacker-3d-shiz'></canvas>
<canvas class='bars-and-stuff'></canvas>
<div class="output-console"></div>
<!-- partial -->
  <script src="assets/js/script.js"></script>

</body>
</html>

2. `style.css`（部分源码）

接下来，我们通过CSS来实现基本样式。

@font-face {
  font-family: 'Source Code Pro';
  font-style: normal;
  font-weight: 400;
  src: local('Source Code Pro'), local('SourceCodePro-Regular'), url(http://themes.googleusercontent.com/static/fonts/sourcecodepro/v4/mrl8jkM18OlOQN8JLgasDxM0YzuT7MdOe03otPbuUS0.woff) format('woff');
}

body {
    font-family: Source Code Pro;
    background:#000;
    color: #00FF00;
    margin:0;
    font-size: 13px;
}
canvas {
    position:absolute;
    top:0;
    left:0;
}
.bars-and-stuff{
    left:66.6%;
}

.output-console {
    position:fixed;
    overflow:hidden;
}
p{margin:0}

3. `JavaScript`（部分源码）

最后，我们通过JavaScript来增强交互效果，打开时产生更强烈的动画效果。

var canvas = document.querySelector(".hacker-3d-shiz"),
    ctx = canvas.getContext("2d"),
    canvasBars = document.querySelector(".bars-and-stuff"),
    ctxBars = canvasBars.getContext("2d"),
    outputConsole = document.querySelector(".output-console");

canvas.width = (window.innerWidth/3)*2;
canvas.height = window.innerHeight / 3;

canvasBars.width = window.innerWidth/3;
canvasBars.height = canvas.height;

outputConsole.style.height = (window.innerHeight / 3) * 2 + 'px';
outputConsole.style.top = window.innerHeight / 3 + 'px'


/* Graphics stuff */
function Square(z) {
    this.width = canvas.width/2;
    
    if(canvas.height < 200){
      this.width = 200;
    };
  
    this.height = canvas.height;
    z = z || 0;

    this.points = [
    new Point({
        x: (canvas.width / 2) - this.width,
        y: (canvas.height / 2) - this.height,
        z: z
    }),
    new Point({
        x: (canvas.width / 2) + this.width,
        y: (canvas.height / 2) - this.height,
        z: z
    }),
    new Point({
        x: (canvas.width / 2) + this.width,
        y: (canvas.height / 2) + this.height,
        z: z
    }),
    new Point({
        x: (canvas.width / 2) - this.width,
        y: (canvas.height / 2) + this.height,
        z: z
    })];
    this.dist = 0;
}

Square.prototype.update = function () {
    for (var p = 0; p < this.points.length; p++) {
        this.points[p].rotateZ(0.001);
        this.points[p].z -= 3;
        if (this.points[p].z < -300) {
            this.points[p].z = 2700;
        }
        this.points[p].map2D();
    }
}

Square.prototype.render = function () {
    ctx.beginPath();
    ctx.moveTo(this.points[0].xPos, this.points[0].yPos);
    for (var p = 1; p < this.points.length; p++) {
        if (this.points[p].z > -(focal - 50)) {
            ctx.lineTo(this.points[p].xPos, this.points[p].yPos);
        }
    }