int r = 100;
int n = 100; 

int mousepress = 0;
//float stan = print(mouseX);
//float fac = print(mouseY);

void setup() {
  background(255, 255, 255);
  frameRate(50);
  size(255, 255);
  stroke(255);
}
 
void draw(){
  stroke(mouseX/2, mouseY/3, random(100)/2, 50);
  line(r, n, mouseX, mouseY);


if (mousePressed){
  r = mouseX;
  n = mouseY;
  //mouseNum++;
}
}