Uses processing. uses predefined-functions and predefined-variables
Do it in replit
 
 Draws circle at the centre of where the mouse is.
Draws circle at the centre of where the mouse is.
Special Variables
mouseX(int). where the mouse position x is mouseY(int). where the mouse position y is keyCode(enum). the current key enum there is a list of keys
Special Functions
Processing(Java) clear() Processing(Java) dist() clear(). clears screen dist() Processing(Java) Other Objects Processing(Java) Images Processing(Java) Mouse