This sketch is created with an older version of Processing,
and doesn't work on browsers anymore.
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void setup(){
size (720,480);
strokeWeight (50);
background(255);
smooth();
}
void draw (){
stroke (random (0, 255), random (0, 255), random (0, 255));
//ellipse (mouseX, mouseY, 50, 50);
line (pmouseX,pmouseY,mouseX,mouseY );
}
void mousePressed(){
saveFrame();
}