function percent(m, p){
  return (m * 100) / p;
}

function getDirection(mouse, wx, wy){
  if(mouse.y < window.innerHeight/2){          
    if(mouse.x < window.innerWidth/2){
      if(percent(mouse.x, wx) >= percent(mouse.y, wy)){
        direction = "up";
      }else{
        direction = "left";
      }            
    }else{
      if(percent((mouse.x - wx)*-1, wx) >= percent(mouse.y, wy)){
        direction = "up";
      }else{
        direction = "right";
      }
    }
  }else{
    if(mouse.x < wx/2){
      if(percent(mouse.x, wx) >= percent((mouse.y - wy) * -1, wy)){
        direction = "down";
      }else{
        direction = "left";
      }            
    }else{
      if(percent((mouse.x - wx)*-1, wx) >= percent((mouse.y - wy) * -1, wy)){
        direction = "down";
      }else{
        direction = "right";
      }
    }
  }   
  return direction;
}

function getLive(life){
  var r = ""
  for (var i = 0; i < map.player.lives; i++){
    r += "💗 ";
  }    
  return r;
}

function getParam(name) {
  name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');
  var regex = new RegExp('[\\?&]' + name + '=([^&#]*)');
  var results = regex.exec(location.search);
  return results === null ? '' : decodeURIComponent(results[1].replace(/\+/g, ' '));
};

function guid() {
  function s4() {
    return Math.floor((1 + Math.random()) * 0x10000)
      .toString(16)
      .substring(1);
  }
  return s4() + s4(); + '-' + s4() + '-' + s4() + '-' + s4() + '-' + s4() + s4() + s4();
}

function comparePlayer(a, b) {
  if (a.py > b.py) {
    return -1;
  }
  if (a.py < b.py) {
    return 1;
  }  
  return 0;
}

function comparePlayerScore(a, b) {
  if (parseInt(a.score) > parseInt(b.score)) {
    return -1;
  }
  if (parseInt(a.score) < parseInt(b.score)) {
    return 1;
  }  
  return 0;
}

function is_touch_device() {  
  try {  
    document.createEvent("TouchEvent");  
    return true;  
  } catch (e) {  
    return false;  
  }  
}

function refreshScore(){
  
  setInterval(function(){
    $("#scoreOutput").html("");
    var i = 1;
    var showPlayer = false;
    if(map.players){
      Object.values(map.players).sort(comparePlayerScore).map(function(element){
        if (score > element.score && !showPlayer){
          $("#scoreOutput").html($("#scoreOutput").html() + i + "º - " + userName + " - " + score + "<br>");
          i++;
          showPlayer = true;
        }
        if(!element.deleted){
          $("#scoreOutput").html($("#scoreOutput").html() + i + "º - " + element.username + " - " + element.score + "<br>");
          i++;
        }      
      });
    }
    if(!showPlayer){
      $("#scoreOutput").html($("#scoreOutput").html() + i + "º - " + userName + " - " + score + "<br>");
    }
  }, 1000)
}

function getUserRamdom(){
  function s4() {
    return Math.floor((1 + Math.random()) * 0x10000)
      .toString(16)
      .substring(1);
  }
  return "Guest-" + s4();
}