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authorPhone Thant Ko <mr.ptk10598@gmail.com>2018-06-29 18:02:18 +0630
committerPhone Thant Ko <mr.ptk10598@gmail.com>2018-06-29 18:02:18 +0630
commit96335abf1079668a5cbe10037de9a58ea6e98af8 (patch)
tree16c90156884d9fee692435185bdb62e554896bdc
parent45432cdc0d9ccf083d4f32be4fa175ee0fa6bbe2 (diff)
29/06/2018 - 6:02PM
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+++ b/processing.html.markdown
@@ -4,26 +4,83 @@ filename: learnprocessing.pde
contributors:
- ["Phone Thant Ko", "http://github.com/phonethantko"]
---
+## Introduction
+
Processing is a programming language for creation of digital arts and multimedia content, allowing non-programmers to
learn fundamentals of computer programming in a visual context.
While the language is based off on Java language,
its syntax has been largely influenced by both Java and Javascript syntaxes. [See more here](https://processing.org/reference/)
The language also comes with its official IDE to compile and run the scripts.
-```Processing
+```processing
+/* ---------
+ Comments
+ ---------
+*/
+
// Single-line comment starts with //
/*
- Since Processing is based on Java,
- the syntax for its comments are the same as Java (as you may have noticed above)!
- Multi-line comments are wrapped around /* */
+ Since Processing is based on Java,
+ the syntax for its comments are the same as Java (as you may have noticed above)!
+ Multi-line comments are wrapped as seen here.
*/
+/* ---------------------------------------
+ Writing and Running Processing Programs
+ ---------------------------------------
+ */
+
// In Processing, your program's entry point is a function named setup() with a void return type.
-// Note! The syntax looks strikingly similar to that of C++
+// Note! The syntax looks strikingly similar to that of C++.
void setup() {
// This prints out the classic output "Hello World!" to the console when run.
- println("Hello World!"); // Another language with a semi-column trap, aint it?
+ println("Hello World!"); // Another language with a semi-column trap, ain't it?
}
+// Normally, we put all the static codes inside the setup() method as the name suggests.
+// It can range from setting the background colours, setting the canvas size.
+// You will see more of them throughout this document.
+
+// Now that we know how to write the working script and how to run it,
+// we will proceed to explore what data types and collections are supported in Processing.
+
+/* -----------------------
+ Datatypes & collections
+ ------------------------
+*/
+
+// According to Processing References, Processing supports 8 primitive datatypes as follows.
+
+boolean booleanValue = true; // Boolean
+byte byteValueOfA = 23; // Byte
+char charValueOfA = 'A'; // Char
+color colourValueOfWhiteM = color(255, 255, 255); // Colour (Specified using color() method)
+color colourValueOfWhiteH = #FFFFFF; // Colour (Specified using hash value)
+int intValue = 5; // Integer (Number without decimals)
+long longValue = 2147483648L; // "L" is added to the number to mark it as a long
+float floatValue = 1.12345; // Float (32-bit floating-point numbers)
+double doubleValue = 1.12345D; // Double (64-bit floating-point numbers)
+
+// NOTE!
+// Although datatypes "long" and "double" work in the language,
+// processing functions do not use these datatypes, therefore
+// they need to be converted into "int" and "float" datatypes respectively,
+// using (int) and (float) syntax before passing into a function.
+
+
+
+
```
+Processing is easy to learn and is particularly useful to create multimedia contents (even in 3D) without
+having to type a lot of codes. It is so simple that you can read through the code and get a rough idea of
+the program flow.
+However, that does not apply when you introduce external libraries, packages and even your own classes.
+(Trust me! Processing projects can get really large)
+
+## What's Next?
+
+Here, I have compiled some useful resources:
+
+ - [Processing Website](http://processing.org)
+ - [Processing Sketches](http://openprocessing.org)