/**
 * band.js
 *
 * JavaScript for band page
 *
 * JavaScript
 *
 *  @category JavaScript
 *  @package  Noke.me.uk
 *  @author   Adam Phillips <adam@pfunc.co.uk>
 *  @license  http://www.pfunc.co.uk pfunc
 *  @link     http://www.pfunc.co.uk
 */
var bandIcons = Array();

var centreX = -100;
var centreY = -130;

var radius = 170;


var focusAngle = 250;
var defaultAngle = 185;

var rotationIncrement = 4;

var currentAngle = 185;
var currentIndex = 1;

var startIndex = 1;

var targetIndex = 1;

var titleImageFolder = "/images/bandmembers/titles/";
var instrumentImageFolder = "/images/bandmembers/instruments/";
var photoImageFolder = "/images/bandmembers/photos/";

var bandMembers = {

    "members": [

        {
            "name": "Shanade",
            "description": "Aspiring to the likes of Jill Scott and Alice Russell, Shanade spends her life singing.<br /><br />When on stage her soul / blues / funk influenced vocals are always delivered with energy and enthusiasm, whether or not she remembers the words."
        },

        {
            "name": "Raf",
            "description": "Rapha L.<br />His mission in Noke : heavy subby bass, wah-wahed skanky analog keys and airy home made samples. It's just a reflection of what's going on in the back of his head all day long, everyday... <br /><br />Highly inspired by top ace bands like the 'New Zealandians' \"Fat Freddy's Drop\", and that funky world around James Brown and Maceo Parker.<br /><br/>...also in charge of making some 'Quiches Lorraine' when the band's hungry."
        },

        {
            "name": "Dave",
            "description": "Dave Male supplies you with the funky drums for your derriere. <br /><br />Grew up playing along to RUN DMC, Prince and Guns n Roses in the countryside. <br /><br />Now lives in town and plays drums live and in the studio for NOKE."
        },

        {
            "name": "Tom",
            "description": "After spending much of his life hitting stuff, Tom came to realise that drums don't hit back.  He had found a hobby.  Upon realising that cowbells, claves, vibraslaps and woodblocks are similarly inert, his hobby became a vocation.<br /><br />HAVE AT YOU COWBELL!!"
        },

        {
            "name": "Adam",
            "description": "Adam was raised on a healthy diet of old school blues; his early influences including the likes of Muddy Waters and Son House.  These days he loves anything with a groove"
        },

    ]

};

function initBand()
{
    bandIcons[0] = "vox";
    bandIcons[1] = "keys";
    bandIcons[2] = "drums";
    bandIcons[3] = "perc";
    bandIcons[4] = "guitar";

    //calculateIconPosition(defaultAngle);

    $("#bandicons img").each(function(){

       $(this).click(function(){

          $("#bandicons img").removeClass("selected");

          $(this).addClass("selected");

          thisid = $(this).attr("id");

          for(i=0; i<bandIcons.length; i++)
          {
            if (bandIcons[i] == thisid)
            {
                curIndex = i;
                break;
            }
          }

          if (curIndex != targetIndex)
          {
              if (!($("#persondetails").css("display")=="none"))
              {
                //$("#persondetails").hide("drop", false, 1000);
              }
              targetIndex = curIndex;
              doAnimation();
          }
          else
          {
              loadPerson(curIndex);
          }

          //newAngle = ((2 * Math.PI) / bandIcons.length) * curIndex;

          //calculateIconPosition(curIndex);
       });

    });

    currentIndex = startIndex;
    drawIcons(defaultAngle);

}

/**
 * Calculates the angle that we need to set the rotation to for the specified icon to be highlighted
 * 
 * @return float
 */
/*
function calculateHighlightRotation(iconIndex)
{
    var ret = focusAngle + (360 / bandIcons.length * iconIndex);

    while (ret > 360)
    {
        ret -= 360;
    }

    return ret;
}
*/
/*
function calculateIconPosition(iconIndex)
{
    numIcons = bandIcons.length;

    angleOffset = 360 / numIcons;

    for (i=0; i<numIcons; i++)
    {
        curAngle = ((i - iconIndex) * angleOffset);

        if (curAngle >= 360) {curAngle -= 360};
        if (curAngle < 0) {curAngle += 360};

        cPosX = (radius * Math.sin(curAngle * Math.PI / 180)) + centreX;
        cPosY = (radius * Math.cos(curAngle * Math.PI / 180)) + centreY;

        $("#bandicons img#" + bandIcons[i]).css("margin-left", cPosX + "px");
        $("#bandicons img#" + bandIcons[i]).css("margin-top", cPosY + "px");
    }

    currentIndex = iconIndex;
}
*/

/**
 * Animates the rotating icons
 */
function doAnimation()
{
    var rotationAmount = 360 / bandIcons.length;

    var numToRotate = 0;

    var dir = true;

    numToRotate = currentIndex - targetIndex;

    //alert(numToRotate);

    if (numToRotate < 0) numToRotate += bandIcons.length;

    /*
    if (currentIndex > targetIndex)
    {
        numToRotate = currentIndex - targetIndex;
    }
    else if (currentIndex < targetIndex)
    {
        numToRotate = (bandIcons.length + currentIndex) - targetIndex;
    }
    */
   
    if (numToRotate > bandIcons.length / 2)
    {
        rotationAmount = -rotationAmount;
        numToRotate = bandIcons.length - numToRotate;
        dir = false;
    }

    //alert(rotationAmount);
    //alert(dir);

    var totalRotation = rotationAmount * numToRotate;

    //if (totalRotation < -180) totalRotation += 360;

    //alert(totalRotation)

    var totalRotated = 0;

    totalRotation += currentAngle;
    totalRotated += currentAngle;

    var numRotated = 0;

    //if (("#persondetails").css("display") != "none")
    //{
    //}

    //alert(totalRotation)

    var intvl = setInterval(function(){

        drawIcons(totalRotated);

        if (dir)
        {
            totalRotated += rotationIncrement;

            if (totalRotated >= (numRotated + 1) * rotationAmount)
            {
                numRotated++;
                //currentIndex++;
            }

            if (totalRotated >= totalRotation)
            {
                drawIcons(totalRotated);

                clearInterval(intvl);
                currentIndex = targetIndex;

                loadPerson(currentIndex);
            }
        }
        else
        {
            totalRotated -= rotationIncrement;

            if (totalRotated <= (numRotated + 1) * rotationAmount)
            {
                numRotated++;
                //currentIndex++;
            }

            if (totalRotated <= totalRotation)
            {
                drawIcons(totalRotated);

                clearInterval(intvl);
                currentIndex = targetIndex;

                loadPerson(currentIndex);
            }
        }
        //currentAngle = totalRotated;

    }, 40);

    /*
    while (totalRotated < totalRotation)
    {
        drawIcons(totalRotated);

        totalRotated += rotationIncrement;

        if (totalRotated >= (numRotated + 1) * rotationAmount)
        {
            numRotated++;
        }
    }
    */
}

function drawIcons(rotation)
{
    var numIcons = bandIcons.length;

    var rotationAmount = 360 / numIcons;

    for (i=0; i<numIcons; i++)
    {
        curAngle = (i * rotationAmount) + rotation;

        if (curAngle >= 360) {curAngle -= 360};
        if (curAngle < 0) {curAngle += 360};

        cPosX = (radius * Math.sin(curAngle * Math.PI / 180)) + centreX;
        cPosY = (radius * Math.cos(curAngle * Math.PI / 180)) + centreY;

        $("#bandicons img#" + bandIcons[i]).css("margin-left", cPosX + "px");
        $("#bandicons img#" + bandIcons[i]).css("margin-top", cPosY + "px");
    }

    currentAngle = rotation;
    //currentIndex = iconIndex;
}

function loadPerson(index)
{
    var titleimgpath = titleImageFolder + bandMembers.members[index].name + ".png";
    var instimgpath = instrumentImageFolder + bandMembers.members[index].name + ".png";

    $("#persondetails #personname").css("background-image", "url('" + titleimgpath + "')");
    $("#persondetails #personinstruments").css("background-image", "url('" + instimgpath + "')");

    $("#persondetails #personname span").html(bandMembers.members[index].name);
    $("#persondetails #personblurb").html(bandMembers.members[index].description);

    $("#persondetails #personphoto").hide().html("<img src=\"" + photoImageFolder + bandMembers.members[index].name + ".png\" />");

    $.get(photoImageFolder + bandMembers.members[index].name + ".png", function() {

        $("#persondetails #personphoto").fadeIn(1000);

    })

    //$("#persondetails").show("drop", false, 1000);
    if ($("#persondetails").css("display") == "none") $("#persondetails").fadeIn(1000);

    try
    {
        pageTracker._trackPageview("/band/" + pageid + "/" + bandMembers.members[index].name);
    }
    catch(err) {}

}