FFX-2 sphere break

find adding combinations of 2- or 3-coin echos for the minigame "sphere break" tournament in Chapter 3 of Final Fantasy X-2.

by Laurel Bruggeman

HTML

echo target:
<select id="echo">
  <option>pick an echo</option>
  <option selected="selected">2</option>
  <option>3</option>
</select>
<br/>
core value:
<input type="text" id="core" value="3"/>
<input type="button" id="go" value="go"/>
<br/>
combos:
<span id="combos"></span>

JavaScript

$('input[type=button]').click( function() {
   myFunction();   
});

$(document).on('keyup change', '#core, #echo', function(){
    var $this = $(this);
    myFunction($this.attr('value'));
})
.on('focus', '#core', function(){
    var $this = $(this);
    $this.select();
    
    // Work around Chrome's little problem
    $this.mouseup(function() {
        // Prevent further mouseup intervention
        $this.unbind("mouseup");
        return false;
    });
});
function myFunction()
{

    var c = document.getElementById('core').value;
    var g = [2, 3, 5, 6]; //gold
    var s = [9,8,7,6,5,4,3,2,1]; //silver
    var results = new Array();
    var selectElt = document.getElementById('echo');
    var echo = selectElt.options[selectElt.selectedIndex].value;

    for(var i=0; i<g.length; i++){
      if(g[i]%c!=0){
         if(echo==2){
          for(var j=0; j<s.length; j++){
            var x = g[i] + s[j];
            if(x%c==0){
               results.push([g[i], s[j]]);
            } 
          }
         }
         else if(echo==3){
           for(var j=0; j<s.length; j++){
             var y = g[i] + s[j];
             if(y%c!=0){
                for(var k=0; k<s.length; k++){
                  var x = g[i] + s[j] + s[k];
                  if(x%c==0){
                     results.push([g[i], s[j], s[k]]);
                  }
                } 
             }
           }
         }

      }

    }
   
    var newline = "<br/>"
    var string=newline;
    for(var i=0; i<results.length; i++){
        if(echo==2){
           string+=results[i][0] + " + " + results[i][1] + newline;
        }
        else if (echo==3){
           string+=results[i][0] + " + " + results[i][1] + " + " + results[i][2] + newline;
        }

    }
    
    document.getElementById('combos').innerHTML = string;
}