The mouseMoved() function in p5.js is called every time the mouse moves and a mouse button is not pressed.
Syntax:
mouseMoved(Event)
Parameters: This function accepts single parameter Event which is optional.
Below programs illustrate the mouseMoved() function in p5.js:
Example 1: This example uses mouseMoved() function change the rectangle color when mouse move over.
function setup() {       // Create Canvas of size 500*500     createCanvas(500, 500); }    let value = 0; function draw() {           // SEt background color     background(200);           // Set the filled color     fill(value);           // Create rectangle of given size     rect(25, 25, 460, 440);           // Set the text color     fill('lightgreen');           // Set font size     textSize(15);           // Display the text     text('Move Mouse Across the page to change its value.',              windowHeight/6, windowWidth/4); }   function mouseMoved() {           value = value + 5;           if (value > 255) {         value = 0;     } } |
Output:
Example 2: This example uses mouseMoved() function change the color of ellipse.
// Declare a variable let value;   function setup() {           // Create Canvas of size 500*500     createCanvas(500, 500); }    function draw() {           // Set background color     background(200);           // fill color according to     // mouseMoved() function           // Set the color     fill(value, value, value);           // Draw ellipse      ellipse(mouseX, mouseY, 115, 115); }   function mouseMoved() {     value = mouseX%255; } |
Output:
Reference: https://p5js.org/reference/#/p5/mouseMoved
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