p5.js | Mouse | pmouseY

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The pmouseY variable in p5.js is used to store the vertical position of the mouse cursor in the frame previous to the current active frame, relative to the origin of the canvas.

Syntax:

pmouseY

Below programs illustrate the pmouseY variable in p5.js:

Example 1: This example uses pmouseY variable to draw mouse pointer as circle.

function setup() { 
  
    // Create canvas 
    createCanvas(1000, 400); 
} 
   
function draw() { 
      
    // Set the background color 
    background(244, 248, 252); 
      
    // Fill color relative pmouseX, 
    // pmouseY and mouseY 
    fill(pmouseX%255, pmouseY%255, mouseY%255); 
      
    // Draw circle  
    circle(mouseX, pmouseY, pmouseX%100); 
} 

Output:

Example 2: This example uses pmouseY variable to display the position of mouse pointer.

function setup() { 
      
    // Create canvas 
    createCanvas(1000, 400); 
      
    // Set font size 
    textSize(20); 
} 
   
function draw() { 
      
    // Set background color 
    background(200); 
      
    // Display result 
    text("Position of pmouseY is "
        + pmouseY, 30, 40); 
} 

Output:

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

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