Processing is a programming language and development environment designed for creating visual and interactive applications. Here is an overview of its features, code blocks, and resources.
Processing programs are organized into two main code blocks: setup() and draw(). setup() is called once at the beginning of the program, and draw() is called repeatedly to update the display.
void setup() {
// code to be executed once at the beginning of the program
}
void draw() {
// code to be executed repeatedly to update the display
}
Variables are used to store data that can be used later in the program.
int variableName = value;
Functions are code blocks that perform a specific task. They can be called by other parts of the program.
void functionName(parameter1, parameter2) {
// code to be executed
}
Conditionals allow the program to make decisions based on certain conditions.
if (condition) {
// code to be executed if condition is true
} else if (otherCondition) {
// code to be executed if otherCondition is true
} else {
// code to be executed if neither condition is true
}
Loops allow the program to repeat a set of instructions.
for (int i = 0; i < 10; i++) {
// code to be executed
}
Objects are a fundamental part of Processing and are used to store and manipulate data.
class ClassName {
int property1;
float property2;
ClassName(int p1, float p2) {
property1 = p1;
property2 = p2;
}
void method() {
// code to be executed
}
}
ClassName objectName = new ClassName(1, 2.0);
Processing provides a library of functions for working with graphics, including drawing shapes, colors, and images.
// set the background color
background(255, 255, 255);
// draw a rectangle
rect(x, y, width, height);
// draw an ellipse
ellipse(x, y, width, height);
// load an image
PImage img = loadImage("image.png");
// display an image
image(img, x, y);
Here are some resources for learning and using Processing: