A Number system variable that tracks the mouse's horizontal position.
In 2D mode, mouseX keeps track of the mouse's position relative to the top-left corner of the canvas. For example, if the mouse is 50 pixels from the left edge of the canvas, then mouseX will be 50.
In WebGL mode, mouseX keeps track of the mouse's position relative to the center of the canvas. For example, if the mouse is 50 pixels to the right of the canvas' center, then mouseX will be 50.
If touch is used instead of the mouse, then mouseX will hold the x-coordinate of the most recent touch point.
Examples
Related References
doubleClicked
A function that's called once when a mouse button is clicked twice quickly.
exitPointerLock
Exits a pointer lock started with requestPointerLock.
mouseButton
A String system variable that contains the value of the last mouse button pressed.
mouseClicked
A function that's called once after a mouse button is pressed and released.