drawing thing - OpenProcessing

mySketch
xxxxxxxxxx
 
void setup() {
​
  background(255, 255, 255);
  fullScreen();
​
}
​
// variables
​
int strokeW = 10;
int strokeR;
int strokeG;
int strokeB;
​
void draw() {
​
  if (mousePressed) {
​
    stroke(strokeR, strokeG, strokeB);
    strokeWeight(strokeW);
    line(mouseX, mouseY, pmouseX, pmouseY);
​
  }
​
  fill(255, 255, 255);
  stroke(0, 0, 0);
  strokeWeight(5);
  rect(-5, -5, 105, 105);
​
  textSize(16);
  fill(0, 0, 0);
  text("Your Stroke ^", 0, 121);
​
  stroke(strokeR, strokeG, strokeB);
  strokeWeight(strokeW);
  line(50, 50, 50, 50);
​
  if (keyPressed) {
​
    if (key == 'q' || key == 'Q') {
      strokeR++;
    }
    if (key == 'w' || key == 'W') {
      strokeG++;
    }
    if (key == 'e' || key == 'E') {
      strokeB++;
    }
    if (key == 'r' || key == 'R') {
      strokeW++;
    }
    if (key == 'a' || key == 'A') {
      strokeR--;
    }
    if (key == 's' || key == 'S') {
      strokeG--;
    }
    if (key == 'd' || key == 'D') {
      strokeB--;
    }
    if (key == 'f' || key == 'F') {
      strokeW--;
    }
​
  }
​
  if (strokeW > 50) {
    strokeW = 50;
  }
​
}