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Stephdidou
Inspiring
January 22, 2018
Answered

Is their a simple way to detect if the actual time (in hour) is near one of 4 hours?

  • January 22, 2018
  • 2 replies
  • 539 views

I've got an AS3 code that calculate and displays 4 tides (changing everyday). Example :

 

High 1 = 13h20

 

High 2 = 23h30

 

Low 1 = 05h30

 

Low 2 = 16h20

 

In code, I'm not gonna put here the calculation of the tides as it's too long and not necessary for this problem, but the variables are :

var $pmm:String; 
var $pms:String; 
var $bmm:String; 
var $bms:String;  
High 1 = $pmm  
High 2 = $pms  
Low 1 = $bmm  
Low 2 = $bms

The app also displays the actual time

var my_timer:Timer=new Timer(1000); 

my_timer.addEventListener(TimerEvent.TIMER, onTimer); 
my_timer.start();  
function onTimer(e:TimerEvent😞void { 
now = new Date(); 
trace(now.hours + ":" + now.minutes); 
}

Is there a simple way to detect if now.hours is closest to $pmm, $pms, $bmm or $bms when the user open the app ?

This topic has been closed for replies.
Correct answer dmennenoh

Something like should work - it's a bit more manual, but with four variables I think it's fine:

var $pmm:String = "13h20";
var $pms:String = "23h30";
var $bmm:String = "05h30";
var $bms:String = "16h20";
var curClose:String = $pmm;
var curDelta:int = delta($pmm);
if(delta($pms) < curDelta){
curDelta = delta($pms);
curClose = $pms;
}
if(delta($bmm) < curDelta){
curDelta = delta($bmm);
curClose = $bmm;
}
if(delta($bms) < curDelta){
curDelta = delta($bms);
curClose = $bms;
}
function delta(time:String):int
{
var n:int = (parseInt(time.substr(0,2)) * 3600) + (parseInt(time.substr(3,2)) * 60);
var now:Date = new Date();
var curSec:int = (now.hours * 3600) + (now.minutes * 60);
return Math.abs(curSec - n);
}

2 replies

D
dmennenohCorrect answer
Inspiring
January 22, 2018

Something like should work - it's a bit more manual, but with four variables I think it's fine:

var $pmm:String = "13h20";
var $pms:String = "23h30";
var $bmm:String = "05h30";
var $bms:String = "16h20";
var curClose:String = $pmm;
var curDelta:int = delta($pmm);
if(delta($pms) < curDelta){
curDelta = delta($pms);
curClose = $pms;
}
if(delta($bmm) < curDelta){
curDelta = delta($bmm);
curClose = $bmm;
}
if(delta($bms) < curDelta){
curDelta = delta($bms);
curClose = $bms;
}
function delta(time:String):int
{
var n:int = (parseInt(time.substr(0,2)) * 3600) + (parseInt(time.substr(3,2)) * 60);
var now:Date = new Date();
var curSec:int = (now.hours * 3600) + (now.minutes * 60);
return Math.abs(curSec - n);
}
Robert Mc Dowell
Robert Mc Dowell
Legend
January 22, 2018

first you must declare any variables in a function or the compiler will throw an error

also space are not allowed in variable name;

----------------------

var $pmm:String = High_1;

var $pms:String = High_2;

var $bmm:String = Low_1;

var $bms:String = Low_2;

// Put in an Array all tides time values from your file and convert it in seconds (As3):

// Note: this example is ok if your tide file is for one day with time in ascendant order

var tideTimeSelected:String = "unknown";

var myTextLoader:URLLoader = new URLLoader();

myTextLoader.addEventListener(Event.COMPLETE, onLoaded);

function onLoaded(e:Event):void {

     var tmpArr:Array;

     var tmpArrNext:Array;

     var myArrayOfLines:Array = e.target.data.split(/\n/);

     var now:Date = new Date();

     var currentTimeSec:uint = (now.getHours()* 3600) + (now.getMinutes()* 60) + now.getSeconds();

     var tideRow:uint;

     var tideRowNext:uint;

     var countRow:uint = myArrayOfLines.length;

     for(var u:uint=0;u<countRow;u++){

          tmpArr = myArrayOfLines.split("h");

          tideRowKey = "tide_"+myArrayOfLines;

          tideRow = myArrayOfLines[tideRowKey] = (tmpArr[0] * 3600) + (tmpArr[1] * 60);

          if((u+1) < countRow){

               tmpArrNext = myArrayOfLines[u+1].split("h");

               tideRowNext = (tmpArryNext[0] * 3600) + (tmpArrNext[1] * 60);

          }

          if(tideRowNext == null){

               if(currentTimeSec >= tideRow){

                    tideTimeSelected = tideRowKey;

                    break;

               }

          }else{

               if(currentTimeSec >= tideRow && currentTimeSec < tideRowNext){

                    tideTimeSelected = tideRowKey;

                    break;

               }

          }

          tideRowNext = null;

     }

}

function onTimer(e:TimerEvent):void {

     myTextLoader.load(new URLRequest("myText.txt"));

}

var my_timer:Timer = new Timer(3600000); // run every hour

my_timer.addEventListener(TimerEvent.TIMER,onTimer);

my_timer.start();

---------------------------

so you will get the variable name like "tide_xxx";

you can use on your logic like this[tideTimeSelected] in order to replace $pmm and others.

this example took me a little time to do it, so if you need more help please send a PM so I can make you a quote

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