// kontakt.js
//
var x=1,y=500,vx=23,vy=-27;
var x1=1,y1=500,vx1=23,vy1=-27;
var x2=1,y2=500,vx2=23,vy2=-27;
var d=0,g=2;

function rnd(){
  if(Math.random()>0.5){return -2;}else{return 2;}
}

var rcn=0,bcn=0,kcn=0;

function kickball(){
  if (bcn==0){
    vx=-vx;
    bcn=10;
  }
}

function kickring(){
  if (kcn==0){
    vx1=-vx1;
    kcn=10;
  }
}

function kickkeule(){
  if (rcn==0){
    vx2=-vx2;
    if(vx2<0){document.keule.src="src/img/keuleSS.gif";}
        else{document.keule.src="src/img/keuleSS_.gif";}
        rcn=10;
  }
}

var maxx,maxy;

function start(){
  maxx=screen.width-300;
  maxy=screen.height-350;
  if (bcn>0){bcn--;}
  if (kcn>0){kcn--;}
  if (rcn>0){rcn--;}
  x=x+vx; y=y+vy; vy=vy+g;
  d=rnd();
  if ((x<0)||(x>maxx+50)){
        vx=-vx-d;
//      if(vx<0){document.ball.src="keuleSS.gif";}
//      else{document.ball.src="keuleSS_.gif";}
  }
  if(x>maxx+50){x=maxx+50} else if(x<0){x=0;}
  if (y>maxy+50){vy=-vy-d;y=maxy+50;} else if (y<0){vy=-vy-d;y=0;}
  if (vx>31){vx=31;}             if (vy>31){vy=31;}
  document.getElementById('ballSheet').style.top=y;
  document.getElementById('ballSheet').style.left=x;
  d=rnd();
  x1=x1+vx1; y1=y1+vy1; vy1=vy1+g;
  if ((x1<0)||(x1>maxx)){
        vx1=-vx1-d;
//      if(vx1<0){document.ring.src="keuleSS.gif";}
//      else{document.ring.src="keuleSS_.gif";}
  }
  if(x1>maxx){x1=maxx} else if(x1<0){x1=0;}
  if (y1>maxy){vy1=-vy1-d;y1=maxy;}else if (y1<0)  {vy1=-vy1-d;y1=0;}
  if (vx1>31){vx1=31;}           if (vy1>31){vy1=31;}
  document.getElementById('ringSheet').style.top=y1;
  document.getElementById('ringSheet').style.left=x1;
  x2=x2+vx2; y2=y2+vy2; vy2=vy2+g;
  d=rnd();
  if ((x2<0)||(x2>maxx)){
        vx2=-vx2-d;
        if(vx2<0){document.keule.src="src/img/keuleSS.gif";}
        else{document.keule.src="src/img/keuleSS_.gif";}
  }
  if(x2>maxx){x2=maxx} else if(x2<0){x2=0;}
  if (y2>maxy){vy2=-vy2-d;y2=maxy;}else if (y2<0)  {vy2=-vy2-d;y2=0;}
  if (vx2>31){vx2=31;}                   if (vy2>31){vy2=31;}
  document.getElementById('keuleSheet').style.top=y2;
  document.getElementById('keuleSheet').style.left=x2;
  setTimeout('start()',100);
}