如何让 p5.js 进入网站？

Question

我几乎在整个互联网上都进行了搜索，我已经非常接近答案了，但我仍然不知道如何在网站中使用 p5.js。更具体地说，我希望能够创建一个 weebly，并让它显示 p5 代码。我知道它涉及网站通过文件或在线文件加载 p5.js，以及 sketch.js。如果没有办法在网络上使用 p5.js ，有没有办法在互联网上使用一般的处理代码（或类似的东西）？谢谢

Answer 1

按照以下说明操作：http://p5js.org/get-started/

或这些说明：https://github.com/processing/p5.js/wiki/Embedding-p5.js

换句话说，您需要创建一个使用 p5.js 的 html 文件，您应该已经有了。

然后您需要将该 html 文件连同您正在使用的任何资源上传到某种网络主机。

您可能还想查看 Processing.js，它随标准处理编辑器一起提供。

Answer 2

如果您使用 Mac 或 Windows 的编辑器（撰写本文时的版本 0.5.7 (0.5.7)）创建草图，请转至 "Save As" 和编辑器将导出您的 "web ready" 文件。

您保存的文件将与您的草图同名，并将包含一个 index.html 和 sketch.js 文件以及一个 "libraries" 文件夹。您可以 post .html 和 .js 文件 as-is 并检查 .html 以获得指向 p5 .js 库的链接。

<script src="libraries/p5.js" type="text/javascript"></script>
<script src="libraries/p5.dom.js" type="text/javascript"></script>
<script src="libraries/p5.sound.js" type="text/javascript"></script>
<script src="sketch.js" type="text/javascript"></script>

Answer 3

创建 html 文件和一个 sketch.js 文件

在您的 html 文件中，您可以放入一个入门模板，然后在 sketch.js

中添加 p5js

查看文档 here

// All the paths
var paths = [];
// Are we painting?
var painting = false;
// How long until the next circle
var next = 0;
// Where are we now and where were we?
var current;
var previous;

function setup() {
  createCanvas(720, 400);
  current = createVector(0,0);
  previous = createVector(0,0);
};

function draw() {
  background(200);
  
  // If it's time for a new point
  if (millis() > next && painting) {

    // Grab mouse position      
    current.x = mouseX;
    current.y = mouseY;

    // New particle's force is based on mouse movement
    var force = p5.Vector.sub(current, previous);
    force.mult(0.05);

    // Add new particle
    paths[paths.length - 1].add(current, force);
    
    // Schedule next circle
    next = millis() + random(100);

    // Store mouse values
    previous.x = current.x;
    previous.y = current.y;
  }

  // Draw all paths
  for( var i = 0; i < paths.length; i++) {
    paths[i].update();
    paths[i].display();
  }
}

// Start it up
function mousePressed() {
  next = 0;
  painting = true;
  previous.x = mouseX;
  previous.y = mouseY;
  paths.push(new Path());
}

// Stop
function mouseReleased() {
  painting = false;
}

// A Path is a list of particles
function Path() {
  this.particles = [];
  this.hue = random(100);
}

Path.prototype.add = function(position, force) {
  // Add a new particle with a position, force, and hue
  this.particles.push(new Particle(position, force, this.hue));
}

// Display plath
Path.prototype.update = function() {  
  for (var i = 0; i < this.particles.length; i++) {
    this.particles[i].update();
  }
}  

// Display plath
Path.prototype.display = function() {
  
  // Loop through backwards
  for (var i = this.particles.length - 1; i >= 0; i--) {
    // If we shold remove it
    if (this.particles[i].lifespan <= 0) {
      this.particles.splice(i, 1);
    // Otherwise, display it
    } else {
      this.particles[i].display(this.particles[i+1]);
    }
  }

}  

// Particles along the path
function Particle(position, force, hue) {
  this.position = createVector(position.x, position.y);
  this.velocity = createVector(force.x, force.y);
  this.drag = 0.95;
  this.lifespan = 255;
}

Particle.prototype.update = function() {
  // Move it
  this.position.add(this.velocity);
  // Slow it down
  this.velocity.mult(this.drag);
  // Fade it out
  this.lifespan--;
}

// Draw particle and connect it with a line
// Draw a line to another
Particle.prototype.display = function(other) {
  stroke(0, this.lifespan);
  fill(0, this.lifespan/2);    
  ellipse(this.position.x,this.position.y, 8, 8);    
  // If we need to draw a line
  if (other) {
    line(this.position.x, this.position.y, other.position.x, other.position.y);
  }
}

<html>
  <head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.6.0/p5.js"></script>
    <script src="sketch.js"></script>
  </head>
  <body>
  </body>
</html>

如何让 p5.js 进入网站？

How do you get p5.js into a website?

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