status/FearLifetimeStatus.cs
using System;
using System.Collections.Generic;
using System.Linq;
using Sandbox;

[Status( 5, 0, 1f, 0, false, typeof( DashFearStatus ), typeof( GrenadeFearStatus ) )]
public class FearLifetimeStatus : Status
{
	public FearLifetimeStatus()
	{
		Title = "Long Nightmares";
		IconPath = "textures/icons/fear_lifetime.png";
	}

	public override void Init( Player player )
	{
		base.Init( player );
	}

	public override void Refresh()
	{
		Description = GetDescription( Level );

		Player.Modify( this, PlayerStat.FearLifetime, GetMultForLevel( Level ), ModifierType.Mult );
	}

	public override string GetDescription( int newLevel )
	{
		return string.Format( "You scare enemies for {0}% longer", GetPercentForLevel( Level ) );
	}

	public override string GetUpgradeDescription( int newLevel )
	{
		return newLevel > 1 ? string.Format( "You scare enemies for {0}%→{1}% longer", GetPercentForLevel( newLevel - 1 ), GetPercentForLevel( newLevel ) ) : GetDescription( newLevel );
	}

	public float GetMultForLevel( int level )
	{
		return 1f + 0.7f * level + (level == 5 ? 1.2f : 0f);
	}

	public float GetPercentForLevel( int level )
	{
		return 70 * level + (level == 5 ? 120 : 0);
	}
}