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diff --git a/p5.html.markdown b/p5.html.markdown index 61fe0705..be22d3e5 100644 --- a/p5.html.markdown +++ b/p5.html.markdown @@ -2,54 +2,52 @@ category: tool tool: p5 contributors: - - ["Amey Bhavsar", "https://github.com/ameybhavsar24"] + - ['Amey Bhavsar', 'https://github.com/ameybhavsar24'] + - ['Claudio Busatto', 'https://github.com/cjcbusatto'] filename: p5.js --- + p5.js is a JavaScript library that starts with the original goal of [Processing](http://processing.org"), to make coding accessible for artists, designers, educators, and beginners, and reinterprets this for today's web. Since p5 is a JavaScript library, you should learn [Javascript](https://learnxinyminutes.com/docs/javascript/) first. + ```js /////////////////////////////////// // p5.js has two important functions to work with. function setup() { -// the setup function gets executed just once when the window is loaded + // the setup function gets executed just once when the window is loaded } function draw() { -// the draw function gets called every single frame. This means that for a frameRate(30) it would get called 30 times per second. + // the draw function gets called every single frame. This means that for a frameRate(30) it would get called 30 times per second. } // the following code explains all features function setup() { - -createCanvas(640, 480); // creates a new canvas element with 640px as width as 480px as height -background(128); // changes the background color of the canvas, can accept rgb values like background(100,200,20) else grayscale values like background(0) = black or background(255) = white - + createCanvas(640, 480); // creates a new canvas element with 640px as width as 480px as height + background(128); // changes the background color of the canvas, can accept rgb values like background(100,200,20) else grayscale values like background(0) = black or background(255) = white } function draw() { + ellipse(10, 10, 50, 50); // creates a ellipse at the 10px from the left and 10px from the top with width adn height as 50 each, so its basically a circle. + //remember in p5.js the origin is at the top-left corner of the canvas -ellipse(10,10, 50,50); // creates a ellipse at the 10px from the left and 10px from the top with width adn height as 50 each, so its basically a cirle. -//remember in p5.js the origin is at the top-left corner of the canvas - - if (mouseIsPressed) { - // mouseIsPressed is a boolean variable that changes to true if the mouse buttton is pressed down at that instant - - fill(0); // fill refers to the innner color or filling color of whatever shape you are going to draw next - - } else { - - fill(255); // you can give in rgb values like fill(72, 240, 80) to get colors, else a single values determines the grayscale where fill(255) stands for #FFF(white) and fill(0) stands for #000(black) - - } - - ellipse(mouseX, mouseY, 80, 80); - // mouseX is the x-coordinate of the mouse's current position and mouseY is the y-coordinate of the mouse's current position - - // the above code creates a circle wherever mouse's current position and fills it either black or white based on the mouseIsPressed -} + if (mouseIsPressed) { + // mouseIsPressed is a boolean variable that changes to true if the mouse buttton is pressed down at that instant + fill(0); // fill refers to the innner color or filling color of whatever shape you are going to draw next + } else { + fill(255); // you can give in rgb values like fill(72, 240, 80) to get colors, else a single values determines the grayscale where fill(255) stands for #FFF(white) and fill(0) stands for #000(black) + } + + ellipse(mouseX, mouseY, 80, 80); + // mouseX is the x-coordinate of the mouse's current position and mouseY is the y-coordinate of the mouse's current position + + // the above code creates a circle wherever mouse's current position and fills it either black or white based on the mouseIsPressed +} ``` + ## Further Reading -* [p5.js | get started](http://p5js.org/get-started/) The official documentation -* [Code! Programming for Beginners with p5.js - YouTube](https://www.youtube.com/watch?v=yPWkPOfnGsw&vl=en) Introduction and Coding challenges using Processing and p5.js by Coding Train + +- [p5.js | get started](http://p5js.org/get-started/) The official documentation +- [Code! Programming for Beginners with p5.js - YouTube](https://www.youtube.com/watch?v=yPWkPOfnGsw&vl=en) Introduction and Coding challenges using Processing and p5.js by Coding Train |