memo for angry ability fact

ability.cs

	float GetFact( float ownersHp ){
		var skillFactValue  = 3f; // 適当
		var ownersMaxHp = 1000f; // 適当
		ownersHp = ownersMaxHp < ownersHp ? ownersMaxHp : ownersHp;

		float currentDamage = ownersMaxHp - ownersHp;

		var rate = currentDamage / ( ownersMaxHp - ( ownersMaxHp * 0.1f ) );
		rate = rate > 1f ? 1f : rate;
		return Mathf.Lerp(1f, skillFactValue, rate );
	}