Screen screen;
 
PFont headingFont;
PFont textFont;
 
void setup() {
  size(500, 500);
 
  headingFont = createFont("Liberation Sans Bold", 32);
  textFont = createFont("Liberation Sans", 16);
  
  rectMode(CENTER);
  ellipseMode(CENTER);
  textAlign(CENTER, CENTER);
  
  screen = new SplashScreen();
}
 
void draw() {
  screen.draw();
}
 
void keyPressed() {  
  screen.keyPressed();
}
 
void mouseClicked() {
  screen.mouseClicked();
}

void setScreen(Screen newScreen) {
  screen = newScreen;
}