@Override
public boolean dispatchTouchEvent(MotionEvent event){
  final int action = event.getActionMasked();
 
  switch(action){
  case MotionEvent.ACTION_DOWN:{
   
    float x = event.getX();
    float y = event.getY();
   
    if (x >= 50 && x <= 250 && y >= 521 && y <= 721){
      my_ship.shoot();
      x_angle = atan2(y-620, x-100);
     
    }
    else if(x >= 1050 && x < width-50 && y >= 521 && y <= 721) my_ship.push();  
   
    break;
     //else thrusters = false;
  }
  case MotionEvent.ACTION_MOVE:{
  
    float xm = event.getX();
    float ym = event.getY();
    if (game_started == true && xm >= 50 && xm <= 250 && ym >= 521 && ym <= 721){
      my_ship.shoot();
      x_angle = atan2(ym-620, xm-100);
     
    }else if (xm >= 1050 && xm < width-50 && ym >= 521 && ym <= 721) {
      my_ship.push();
     
    }
    if (game_started == false && xm > width/2-200 && xm < width/2+200 && ym <= height/2+200 && ym >= 200) game_started = true;
     
}break;
 
  }