1. class Land
   {
     int maxHeight;
     int h;
     ArrayList values;
     float dp;
     float p;
   
     Land( int maxHeight )
     {
       values = new ArrayList( width );
       this.maxHeight = maxHeight;
       h = 40; 
       p = 1.0;
       dp = .01;
       fillValues();
     }
   
     void fillValues()
     {   
       for( int i = 0; i < width; i++ )
       {
         values.add ( nextValue() );
       }
     }
   
     void display()
     { 
      noStroke();
       beginShape();
       vertex( width, height );
       vertex( 0, height );
       Integer i;
       for( int x=0; x < width; x++ )
       {
         i = (Integer) values.get( x );
         vertex( x, i );
       }
       endShape(CLOSE); 
    
     }
   
     void displace( int amt )
     {
       amt = constrain( amt, 0, width-1 );
       for( int i = 0; i < amt; i++ )
       {
         values.remove( 0 );
         values.add( nextValue() );
       }
     }
   
     int getY( int x )
     {
       return (Integer) values.get( x );
     }
   
     int nextValue()
     {
       int yVal = height - int( noise( p ) * maxHeight );
       p += dp;
       return yVal;
     }
   }
   

I did as he suggested dimkir, but the file test.png moves with the Motorcycle .

How can I insert the file test.png in positions x = 80 and y = 300?

Thanks

1. class Motorcycle 
   { 
     
     Land land; 
     int x; 
     int w; 
     int indent;
     float h1, h2; 
     float jumpSpeed; 
     float gravity; 
     float initialJumpSpeed; 
     PShape s;
2.  PImage img;

and

1. Motorcycle( Land land )
     {
    
    
       img = loadImage("test.png"); image(img, 80,300);
       this.land = land;
       s = loadShape("motorcycle.svg");
   

I hope not disturbing.

Thanks

1. class Motorcycle
   {
     PImage img;
     Land land;
     int x;
     int w;
     int indent;
     float h1, h2;
     float jumpSpeed;
     float gravity;
     float initialJumpSpeed;
     PShape s;
    
     float speed;
     float acceleration;
     float theta;
     boolean jumping;
     boolean debug;
   
     Motorcycle( Land land )
     {
    
    
       img = loadImage("albero.png");
   
       this.land = land;
       s = loadShape("motorcycle.svg");
     
       s.scale( -1, 1 );
       s.translate( -s.width, 0 );
       x = width/3;
       w = (int)s.width; 
       indent = 25;
       jumpSpeed = 20;
       initialJumpSpeed = jumpSpeed;
       gravity = .3;
       speed = 0;
       acceleration = .2;
       theta = 0;
       h1 = land.getY(x+indent);
       h2 = land.getY(x+int(s.width)-indent);
     } 
   
     void display()
     { 
       int x1, x2, y1, y2;
       x1 = x + indent;
       x2 = x + (int)s.width - indent;
       y1 = land.getY( x1 );
       y2 = land.getY( x2 );
       if( debug )
       {
        
         fill(255,200,200);
         //fill( 255, 0, 0 );
         //stroke( 255, 0, 0 );
         ellipse( x1, y1, 10, 10 );
         ellipse( x2, y2, 10, 10 );
         line( x1, y1, x2, y2 );
       }
       jumpSpeed -= gravity;
      
       if( h1 >= y1 )
       {
         h1 = y1;
       }
       else
       {
         h1 -= jumpSpeed;      
       }
       if( h2 >= y2 )
       {
         h2 = y2;
       }
       else
       {
         h2 -= jumpSpeed;
       }
       if( h1 >= y1 && h2 >= y2 )
       {
         theta = atan2( y2 - y1, x2 - x1 );
         jumpSpeed = -1*speed*sin( theta );
       }
      
       translate( x1, h1 );
       rotate( theta );
       shape( s, -indent, -s.height );
       image(img, 80,30);
     }
    void jump()
     {
       if(! jumping )
       {
         jumping = true;
         jumpSpeed = initialJumpSpeed;
         h1 -= jumpSpeed;
         h2 -= jumpSpeed;
         jumpSpeed -= gravity;
       }
   
     else{  jumping = false; gravity = 1.3;}
    }
   
     void move()
     {
       land.displace( int(speed) );
     }
   
     void accelerate()
     {
       speed += acceleration;
     }
   
     void slowDown()
     {
       if( speed > 0 )
       {
         speed -= acceleration;
       }
     }
   }
   
   
   

but it does not work, the image file is always on top and moves with the motorcycle.