var $totalzcount = 0;                   //defined by the game
var $initialHealth = 150;               //defined by the game
var $zombiecount = 24;                  //defined by the game
function calculateZombieCount() {
    $tempzcount = $zombiecount;
    $currZombHealth = $initialHealth;
    $totalzcount = 0;
 
    if($round.val() == 1) { //if its round 1:
        $tempzcount += parseInt( ($playercount - 1 ) * 6 * 1); //  current zombie count = ( (players in game) - 1 ) * 6 * 1)
        $tempzcount = parseInt( getActualTotal($tempzcount, 1) ); //send round 1 and zombiecount to function getActualTotal for further processing 
    }
    else { //round is greater than 1
		//loop through this part for every round after round 2 until you reach the desired round for health/zombie count
        for(i = 2; i <= $round.val(); i++) {
            //health calculations
			//if round is 10 or higher
            if(i >= 10) {
                $currZombHealth = parseInt($currZombHealth * 1.1); //take the current zombie health and multiply it by 1.1
            }
            else {
                $currZombHealth = parseInt($currZombHealth += 100); //else add 100 to what it already is
            }

            //zombie per round calculations
			//if its round 2, just add 6
            if(i == 2) {
                $totalzcount += 6;
            }

			$tempzcount = 24; //this gets reset to 24 to reset variables for calculation
            
			//take the roundcount and divide it by five to create an exponential multiplier
            $multiplier = i / 5;
			//if its less than one (to prevent the zombie count from shrinking, set it to 1.
            if($multiplier < 1) { $multiplier = 1; }
                
            if(i >= 10) {
                $multiplier *= (i * .15);
            }

			//if solo
            if( $playercount == '1') {
                $tempzcount += parseInt( (.5 * 6) * $multiplier); //zombiecount is (.5 * 6) * $multiplier which we calculated earlier, added on to the current zombie count (24)
            }
            else {
                $tempzcount += parseInt( ($playercount - 1 ) * 6 * $multiplier); //its a coop game, subtract 1 from player count, then multiply by 6 and the multiplier we had earlier, and add it to the zombiecount (24).
            }

			//send round and current zombie count for further calculation.
            $tempzcount = parseInt(getActualTotal($tempzcount, i));
            $totalzcount += $tempzcount;
        }
    }
}


function getActualTotal(z, i) {

//if its round 1, return 1/4th of what we passed in, which in this case would be 24.
//24 * .25 = 6, which is why round 1 has 6 zombies.
if($('#currentRound').val() == 1) {
    return z * .25;
}       

//what round are we on?
switch(i) {
    case 2:
        return (z * .3); //take the zombie count we calculated earlier, and multiply by .3/.5/.7/.9, then send it back.
    case 3:
        return (z * .5);
    case 4:
        return (z * .7);
    case 5:
        return (z * .9);
    default:               //round was none of the numbers before, just return it.
        return z;
    }
}