/*   ____  The area of interest is outlined is in blue and  
 -> /      a triangle is used as border to make sure euglena 
    \____  are cleared out. The top coordinates of the top right 
           x and y and width and height can be passed as parameters 
*/
void protoClear(float x, float y, float screenWidth, float screenHeight) {
      noFill();
      stroke(color(0, 0, 220));
      strokeWeight(5);
      beginShape(); 
      vertex(convertXCoord(x + screenWidth), convertYCoord(y));
      vertex(convertXCoord(x), convertYCoord(y));
      vertex(convertXCoord(x - menu.width), convertYCoord((y + y + screenHeight)/2));
      vertex(convertXCoord(x), convertYCoord(y + screenHeight));
      vertex(convertXCoord(x + screenWidth), convertYCoord(y + screenHeight));
      endShape();
      arduino.digitalWrite(left, Arduino.HIGH);
}