title: andengine position a body
body: <p>I am trying to position a body using the physics engine with this code:</p>
  
  <pre><code>                float touchX = pp[0];
                  float touchY = pp[1];
                  float diffX = touchX - mBody.getPosition().x;
                  float diffY = touchY -  mBody.getPosition().y;                   
                  mBody.setLinearVelocity(new Vector2(( pp[0])  / PhysicsConstants.PIXEL_TO_METER_RATIO_DEFAULT , ( pp[1]) / PhysicsConstants.PIXEL_TO_METER_RATIO_DEFAULT));
  </code></pre>
  
  <p>The X and Y coords are from a TMX tile map and are 32 pixels square, I am trying to get the body in the physics engine to move to certain tiles in a tile map (held in the pp[] array) but instead it moves to a random chaotic path. Is this the right approach to convert X,Y coords and move to that point??
  Thanks</p>