An Epic rarity perk called PerkFireStack that modifies player fire stacking behavior. It registers a perk with a name, icon and descriptions, increments a FireDmgStack stat by +1, and multiplies FireLifetime by a value computed from the perk level.
using System;
using Sandbox;
[Perk( Rarity.Epic, includedAtStart: false, locked: true, minUnlocksReq: 1, alwaysOfferDebug: false )]
public class PerkFireStack : Perk
{
private enum Mod { FireLifetime };
// todo: fire particle affect should change color when it stacks
static PerkFireStack()
{
Register<PerkFireStack>(
name: "Pyromaniac",
imagePath: "textures/icons/vector/fire_dmg_stack.png",
description: level => $"Your fire stacks\n-{(int)GetValue( level, Mod.FireLifetime, true )}% fire duration",
upgradeDescription: level => $"Your fire stacks\n-{(int)GetValue( level - 1, Mod.FireLifetime, true )}%→-{(int)GetValue( level, Mod.FireLifetime, true )}% fire duration"
);
}
public override void Start()
{
base.Start();
}
public override void Refresh()
{
base.Refresh();
Player.Modify( this, PlayerStat.FireDmgStack, 1f, ModifierType.Add );
Player.Modify( this, PlayerStat.FireLifetime, GetValue( Level, Mod.FireLifetime ), ModifierType.Mult );
}
private static float GetValue( int level, Mod mod, bool isPercent = false )
{
switch ( mod )
{
case Mod.FireLifetime:
default:
return isPercent
? 100f - 20f * level
: 1f - (0.100f - 0.20f * level);
}
}
}