private void pairWithButtons()
{
foreach (var level in skillsByLevel)
{
var pairedLevel = level
.Select(skillNode =>
{
var button = SkillButton.getSkillButton(skillNode.getSkill(), skill => { onSkillPicked.Invoke(skill); });
skillNodeToButton.Add(skillNode, button);
return(new Tuple <SkillNode, SkillButton>(skillNode, button));
})
.ToList();
nodesWithButtons.Add(pairedLevel);
}
}