The keyIsPressed variable in p5.js is true if any key is pressed and false if no keys are pressed.
Syntax:
keyIsPressed
The below program illustrates the key is pressed variable in p5.js.
Example-1:
javascript
let valueX; let valueY; function setup() { // Create Canvas of size 500*500 createCanvas(1000, 500); } function draw() { // set background color background(200); fill('green'); // set text and text size textSize(25); text('Press Key to change the figure '+ 'from Circle To Keyboard', 30, 30); // use of keyIsPressed Variable if (keyIsPressed) { // draw ellipse ellipse(mouseX, mouseY, 115, 115); fill('red'); text("Key Is Pressed", 100, 300); } else { rect(mouseX / 2, mouseY / 2, 300, 200); } }; |
Output:
Before:
After:
Example-2:
javascript
let valueX; let valueY; function setup() { // Create Canvas of size 500*500 createCanvas(500, 500); } function draw() { // set background color background(200); fill('green'); // set text and text size textSize(25); text('Click to flip the figure', 30, 30); // use of KeyIsPressed if (keyIsPressed) { fill(valueX, 255 - valueY, 255 - valueX); // draw rectangle rect(mouseX, mouseY, 115, 115); fill(valueY, 255 - valueX, 255 - valueX); rect(mouseX, mouseY + 115, 115, 115); fill(255 - valueY, 255 - valueX, 255 - valueY); } else { rect(mouseX - 115, mouseY, 115, 115); fill(255 - valueY, 255 - valueY, 255 - valueY); rect(mouseX - 115, mouseY + 115, 115, 115); } }; |
Output: Before:
After:
Reference: https://p5js.org/reference/#/p5/keyIsPressed
Whether you’re preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape, neveropen Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we’ve already empowered, and we’re here to do the same for you. Don’t miss out – check it out now!
