The movedY variable in p5.js contains the vertical movement of the mouse since the last frame of the sketch. A positive value indicates that the mouse moved down and a negative value indicates that it moved up in the last frame.
Syntax:
movedY
The program below illustrates the movedY variable in p5.js:
Example 1:
javascript
function setup() { createCanvas(400, 300); textSize(16); fpsSlider = createSlider(1, 60, 30, 1); fpsSlider.position(20, 40); } function draw() { clear(); text("Move the slider to change the framerate of the sketch", 20, 20); // Set the framerate according to the slider frameRate(fpsSlider.value()); text("Current Framerate: " + fpsSlider.value() + " FPS", 20, 80); // Use the movedY property text("The mouse moved " + movedY + " units in the y-direction", 20, 140); text("since the last frame", 20, 160); } |
Output:
Example 2:
javascript
let gameOver = false; function setup() { createCanvas(600, 300); textSize(16); } function draw() { clear(); text( "Move the mouse vertically from one end to the "+ "other end slowly to keep playing", 20, 20 ); if (!gameOver) { // Use the movedY property to display the // amount of mouse movedF text("The mouse moved " + movedY + " units in "+ "the y-direction", 20, 60); // Get the absolute amount of mouse moved // and finish the game is it goes too fast if (abs(movedY) > 3) gameOver = true; } else text("You moved too fast! Refresh to try again", 20, 80); } |
Output:
Reference: https://p5js.org/reference/#/p5/movedY
Environment Setup: https://www.geeksforgeeks.org/p5-js-soundfile-object-installation-and-methods/
Reference: https://p5js.org/reference/#/p5/setCamera
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