public function createHoppingTree()
{
$root = $this->getRootSkill();
$this->hopping = $this->createSkill(9, 'Hopping');
$this->hopping->addSkillRelatedByParentId($root);
$this->hoppingSIF = $this->createSkill(10, 'Hopping SIF');
$this->hoppingSIF->addSkillRelatedByParentId($this->hopping);
$this->unispin = $this->createSkill(11, 'Unispin');
$this->unispin->addSkillRelatedByParentId($this->hoppingSIF);
$this->unispin->setIsMultiple(true);
$this->unispin180 = $this->createSkill(12, '180 Unispin');
$this->unispin180->addSkillRelatedByParentId($this->hoppingSIF);
$this->unispin180->setMultipleOf($this->unispin);
$this->unispin180->setMultiplier(180);
$this->unispin360 = $this->createSkill(13, '360 Unispin');
$this->unispin360->addSkillRelatedByParentId($this->unispin180);
$this->unispin360->setMultipleOf($this->unispin);
$this->unispin360->setMultiplier(360);
$this->rollingHop = $this->createSkill(14, 'Rolling Hop');
$this->rollingHop->addSkillRelatedByParentId($this->hopping);
$this->crankflips = $this->createSkill(15, 'Crankflips');
$this->crankflips->setIsMultiple(true);
$this->smallflip = $this->createSkill(16, 'Smallflip');
$this->smallflip->addSkillRelatedByParentId($this->rollingHop);
$this->smallflip->setMultipleOf($this->crankflips);
$this->smallflip->setMultiplier(180);
$this->crankflip = $this->createSkill(17, 'Crankflip');
$this->crankflip->addSkillRelatedByParentId($this->rollingHop);
$this->crankflip->setMultipleOf($this->crankflips);
$this->crankflip->setMultiplier(360);
$this->doubleflip = $this->createSkill(18, 'Doubleflip');
$this->doubleflip->addSkillRelatedByParentId($this->crankflip);
$this->doubleflip->setMultipleOf($this->crankflips);
$this->doubleflip->setMultiplier(720);
$this->hickflip = $this->createSkill(19, 'Hickflip');
$this->hickflip->addSkillRelatedByParentId($this->unispin180);
$this->hickflip->addSkillRelatedByParentId($this->crankflip);
$this->hickflip->setIsComposite(true);
$this->hickflip->addSkillRelatedByPartId($this->unispin180);
$this->hickflip->addSkillRelatedByPartId($this->crankflip);
$this->treyflip = $this->createSkill(20, 'Treyflip');
$this->treyflip->addSkillRelatedByParentId($this->hickflip);
$this->treyflip->addSkillRelatedByParentId($this->unispin360);
$this->treyflip->addSkillRelatedByParentId($this->crankflip);
$this->treyflip->setIsComposite(true);
$this->treyflip->addSkillRelatedByPartId($this->unispin360);
$this->treyflip->addSkillRelatedByPartId($this->crankflip);
}