Haxe Lottery

Lottery.hx

class Lottery
{

	var entries:Array<{ name:String, chance:Float }> = [];
	var lots_total:Float = 0;

	public function new() { }

	public function add_entry(participant:String, chance:Float = 1)
	{
		entries.push({
			name: participant,
			chance: chance
		});
		lots_total += chance;
	}

	public function get_winner():String
	{
		if (lots_total <= 0) return null;
		var n = Math.random() * lots_total * 1000000;
		var current_lot:Float = 0;
		for (entry in entries)
		{
			current_lot += entry.chance * 1000000;
			if (current_lot >= n) return entry.name;
		}
		return '';
	}

}