p5.js mouseReleased() Function

The mouseReleased() function in p5.js works when mouse button released. The touchEnded() function is used instead of mouseReleased() function when mouseReleased() function is not defined.

Syntax:

mouseReleased(Event)

Below programs illustrate the mouseReleased() function in p5.js:

Example 1: This example uses mouseReleased() function to change the background color.

function setup() {

    // Create Canvas
    createCanvas(500, 500);
}

let value = 0;

function draw() {

    // Set the background color
    background(200);

    // Fill the color
    fill(value, value-50, value-100);

    // Create rectangle
    rect(25, 25, 460, 440);

    // Set the filled color
    fill('lightgreen');

    // Set the font size
    textSize(15);

    // Display result
    text('Keep on Clicking the Mouse Across'
        + ' the page \nto change Canvas Color.',
        windowHeight/10, windowWidth/4);
}

function mouseReleased() {
    value = value + 5;

    if (value > 255) {
        value = 0;
    }
}

Output:

Example 2: This example uses mouseReleased() function to change the mouse pointer color.

let valueX;
let valueY;

function setup() {

    // Create Canvas
    createCanvas(500, 500);
}

function draw() {

    // Set background color
    background(200);

    // Fill the color
    fill('green');

    // Set font size
    textSize(25);

    text('Drag mouse to change color', 30, 30);

    // Fill color according to mouseMoved()
    fill(valueX, 255-valueY, 255-valueX);

    // Draw ellipse
    ellipse(mouseX, mouseY, 115, 115);
}

function mouseReleased() {
    valueX = mouseX%255;
    valueY = mouseY%255;
}

Output:

Reference: https://p5js.org/reference/#/p5/mouseReleased