If you want continuous response, use pmouseX and pmouseY inside the mouse event functions.
#PROCESSSING PMOUSE AND MOUSEX UPDATE#
Inside draw (), pmouseX and pmouseY update only. You may find that pmouseX and pmouseY have different values when referenced inside of draw () and inside of mouse events like mousePressed () and mouseMoved (). If you want values relative to the previous frame, use pmouseX and pmouseY inside draw(). The system variable pmouseX always contains the horizontal position of the mouse in the frame previous to the current frame. However, with 0.4.18 and 0.4.19, when the mouse stops moving pmouseX/Y does not equal the current mouseX/Y values. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere. When developing using the editor, pmouseX/Y seems to update with the new frame so if the mouse stops moving pmouseX/Y will equal mouseX/Y on the next frame.
#PROCESSSING PMOUSE AND MOUSEX FOR FREE#
If the mouse variables were always updated multiple times per frame, then something like line(pmouseX, pmouseY, mouseX, mouseY) inside draw() would have lots of gaps, because pmouseX may have changed several times in between the calls to line(). Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. If these values weren't updated immediately during mouse events, then the mouse position would be read only once per frame, resulting in slight delays and choppy interaction. But inside mouse events, they update each time the event is called. Inside draw(), pmouseX and pmouseY update only once per frame (once per trip through the draw() loop). You may find that pmouseX and pmouseY have different values when referenced inside of draw() and inside of mouse events like mousePressed() and mouseMoved(). The system variable pmouseX always contains the horizontal position of the mouse in the frame previous to the current frame. Mouse and keyboard events only work when a program has draw (). # between the current and previous position Description The mouseClicked () function is called after a mouse button has been pressed and then released. # Move the mouse quickly to see the difference
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