p5.js | Mouse | mouseX
The mouseX variable in p5.js is used to store the current horizontal position of the mouse, relative to (0, 0) of the canvas. If touch is used instead of mouse input, mouseX will hold the x value of the most recent touch point.
Syntax:
mouseX
Below programs illustrate the mouseX variable in p5.js:
Example 1: This example uses mouseX variable to display position.
function setup() { // Create canvas createCanvas(1000, 400); // Set the text size textSize(20); } function draw() { // Set background color background(200); // Create rectangle rect(mouseX, height/2, 30, 30); // Display position text("Position of mouse relative to canvas is " + mouseX, 30, 40); } |
Output:
Example 2: This example uses mouseX variable to display position.
function setup() { // Create canvas createCanvas(1000, 400); // Set font size textSize(20); } function draw() { // Set background color background(200); // Create circle circle(mouseX, mouseY, 30); // Display position text("Position of mouseX relative to canvas: " + mouseX, 30, 40); } |
Output:
Reference: https://p5js.org/reference/#/p5/mouseX