hep

PImage startscreen, backImg, birdImg, wallImg, startImg;
PFont title;
int stage;
int screensizex = 1728;
int screensizey = 972;
int gamestate = 1, score = 0, highScore = 0, x = -200, y, vy = 0, wx[] = new int[2], wy[] = new int[2];


void setup(){
  stage = 1;
  size(1728,972);

}
void draw(){
  if(stage==1){
    startscreen = loadImage("Tesla.jpg");
    backImg =loadImage("background.png");
    birdImg =loadImage("bird.png");
    wallImg =loadImage("wall.png");
    startImg=loadImage("menu.png");
    image(startscreen, 0,0, screensizex, screensizey);
    title = createFont("font",1000,true);
    textAlign(CENTER);
    text("BLA BLA!",100,150);
    text("Test text", 100, 170);
    println(stage);

  if(keyPressed) {
      if (key == '1') {
        stage = 1;
  }
       else if (key == '2') {
        stage = 2;
        gamestate = 0;
    }
           else if (key == '3') {
        stage = 3;
    }
  }
  }

  if (stage == 2){
    println(stage);
    fill(0);
    if(gamestate == 0) {
    imageMode(CORNER);
    image(backImg, x, 0);
    image(backImg, x+backImg.width, 0);
    x -= 6;
    vy += 1;
    y += vy;
    if(x == -1800) x = 0;
    for(int i = 0 ; i < 2; i++) {
      imageMode(CENTER);
      image(wallImg, wx[i], wy[i] - (wallImg.height/2+100));
      image(wallImg, wx[i], wy[i] + (wallImg.height/2+100));
      if(wx[i] < 0) {
        wy[i] = (int)random(200,height-200);
        wx[i] = width;
      }
      if(wx[i] == width/2) highScore = max(++score, highScore);
      if(y>height||y
<0||(abs(width/2-wx[i])
  <25 && abs(y-wy[i])>100)) gamestate=1;
      wx[i] -= 6;
    }
    image(birdImg, width/2, y);
    text(""+score, width/2-15, 700);
  }
  else {
    imageMode(CENTER);
    image(startImg, width/2,height/2);
    text("High Score: "+highScore, 50, width);
  }
}
if (mousePressed == true) {
  vy = -17;
  if(gamestate==1) {
    wx[0] = 600;
    wy[0] = y = height/2;
    wx[1] = 900;
    wy[1] = 600;
    x = gamestate = score = 0;
  }
}



  if(keyPressed) {
      if (key == '1') {
        stage = 1;
  }
       else if (key == '2') {
        stage = 2;
        gamestate = 0;
    }
           else if (key == '3') {
        stage = 3;
    }
  }

  if (stage == 3){
    background(0,255,0); //green
    println(stage);



  if(keyPressed) {
      if (key == '1') {
        stage = 1;
  }
       else if (key == '2') {
        stage = 2;
        gamestate = 0;
    }
           else if (key == '3') {
        stage = 3;
    }
  }
            }

  }