Set up wraparound effect in libGDX with Box2D -


i have been having trouble trying set wraparound in libgdx using box2d, example want player appear @ left side of screen after exiting right side, not working here code:

public void setwraparound(){     //if player goes out of bounds vertically     if(body.getposition().x < 0){         body.settransform(new vector2(4.8f, body.getposition().y),body.getangle());     }else if(body.getposition().x > 4.8f){         body.settransform(new vector2(0, body.getposition().y), body.getangle());     }      //if player goes out of bounds horizontally     if(body.getposition().y < 0){         body.settransform(new vector2(body.getposition().x,8f), body.getangle());     }else if(body.getposition().y > 8f){         body.settransform(new vector2(body.getposition().x,0), body.getangle());     }  }

then call method in gamestage class this:

 public gamestage() {     setupworld();     setupcamera();     setuptouchcontrols();     player.setwraparound();     renderer = new box2ddebugrenderer(); }

anyone me out?

the place call setwraparound method wrong. need call after collision of player screen border happens. suggest following

  1. create static bodies each screen border (you use example edgeshape that)
  2. add contactlistener box2d world , check in begincontact method if player & wall touch.
  3. now after touch detected call method setwraparound

alternatively create sensor matches screen size , detect if player touches sensor borders. or check every frame player's x/y positions , see if out of screen, better use box2d collision detection.


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