Difference between revisions of "Regeneration rate"

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m (→‎Rate Math: Remove chei walking exception which no longer applies, and add that trolls can use troll armor for even more regen.)
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Your '''regeneration rate''' is the speed at which your character recovers [[HP]]. It is affected by many things, almost all of which stack.
 
Your '''regeneration rate''' is the speed at which your character recovers [[HP]]. It is affected by many things, almost all of which stack.
  
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===Rate Math===
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===Base regeneration===
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Your base regeneration rate (BRR) follows one of the following formulas:
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Your base regeneration rate (BRR) is calculated as follows:
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*If below 60 max HP (MHP)
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::<font size="3"><code>20 + MHP / 6</code></font>
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::<font size="3"><code>MHP / 3</code></font>
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So for every 1 max HP, BRR increases by 1/6.
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*If 60 MHP or higher
 
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::<font size="3"><code>MHP / 6 + 10</code></font>
 
  
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Total regeneration rate (TRR) is modified as follows:
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===Modifiers===
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*The [[amulet of regeneration]] (or [[amulet of Vitality]]) adds 40
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Total regeneration rate (TRR) is modified as follows, in this order:
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*A [[troll leather armour]] adds 40, now even for trolls
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*The Regen+ property adds 80 per instance, which stacks with no limit.
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*The [[moon troll leather armour]] [[unrandart]] adds 40 in addition to the previous bonus
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**An [[artefact]] may generate with Regen+.
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*The [[Good_mutations#regeneration|regeneration mutation]] adds 40 per level
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**An [[Amulet of regeneration]] gives a rank of Regen+.
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*The [[Regeneration]] spell adds 100
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**A [[troll leather armour]] has Regen+.
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*[[Trog|Trog's Hand]] adds 100. Unlike other sources, this amount is added ''after'' calculating the effects of the Slow Healing mutation, [[sickness]], and vampire hunger levels.
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***The [[moon troll leather armour]] [[unrandart]] adds another rank of the property (Regen++ in total).
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*The [[demonspawn]] mutation [[demonspawn mutations#Powered by Death|Powered by Death]] adds 100 for every [[corpse]] within a radius of 3 tiles per rank, up to a maximum of 700. However, the additional regeneration only triggers when you kill a monster, and lasts 2d8 + 8 per rank turns.
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**The [[Good_mutations#regeneration|regeneration mutation]] adds a rank of Regen+ per level.
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*If you are a [[vampire]], your regeneration rate is modified as follows:
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**The [[robe of Vines]] gives Regen++++.
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**Alive: +20
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*The [[demonspawn]] mutation [[demonspawn mutations#Powered by Death|Powered by Death]] has a chance to add a temporary regen bonus of up to 100*level. Further kills can increase this up to a maximum of 1000-1200, but falls by 100 every 2-5 turns.
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**Full/Very full: +10
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*[[Armataur]]s gain a temporary regen bonus when [[rampaging]] at XL 7.
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**Normal: +0
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*If you are a [[vampire]] and Alive, add 20.
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**Thirsty/Very Thirsty: ÷2
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*If you are [[sick]] or have [[Bad_mutations#Inhibited_Regeneration|-Regen]] (with monsters in [[LOS]]), set your rate to 0.
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**Bloodless: Set the rate to 0.
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*[[Jiyva]] adds anywhere between 80 and 160, depending on piety level.
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*If you have the [[Bad_mutations#Slow_Healing|Slow Healing]] mutation:
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*[[Trog|Trog's Hand]] adds 100.
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**Rank 1: Halve your rate if there are monsters in your LoS.
 
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**Rank 2: Set your rate to 0 if there are monsters in your LoS.
 
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**Rank 3: Set your rate to 0.
 
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*If your current [[strength]] is equal or less than 0, divide by 4.
 
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*If you are [[sick]], set the rate to 0.
 
  
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Every turn of 10 auts you accumulate regeneration points equal to your TRR. When 100 are gained you heal 1 HP, and excess regeneration points are carried over to the next turn.
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Because the last two effects are applied last, they are not modified by any other factors, and can heal you even if you have -Regen.
  
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If your last action didn't last 10 auts, the amount of regeneration points you gain is scaled with the amount of time taken.  
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Every turn (10 auts) you accumulate regeneration points equal to your TRR. When you accumulate 100 points, you heal 1 HP, and excess regeneration points are carried over to the next turn. If your action lasted longer/shorter than 10 aut, then the regeneration is scaled with time taken.
  
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At 100 MHP your BRR is 26. In order to get 100 BRR you would need 540 MHP. For 50 BRR, 240 MHP. As can be expected, regeneration items are far more efficient at raising your TRR than stacking HP.
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At 100 MHP, your BRR is 36.6. In order to get 50 BRR (regain 1 HP every 2 turns), you would need 180 MHP; for 100 BRR (heal every turn), you would need 480 MHP. Items or mutations that increase regeneration are far more efficient at raising your regeneration rate than stacking HP.
  
 
===Examples===
 
===Examples===
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*You have 30 MHP so you use the first formula. Your BRR is 30/3 => 10. It will take 10 turns to accumulate 100 regeneration points and heal by 1 HP. Your healing rate is 1 HP for every 10 turns.
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*You have 30 MHP. Your BRR is 20 + 30/6 => 25. It will take 4 turns to accumulate 100 regeneration points and heal by 1 HP. Your healing rate is 1 HP for every 4 turns.
  
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*Same as above, except you have a [[troll leather armour]], which adds 40 to this rate. Your TRR is 10+40 => 50. It will take 2 turns to accumulate 100 regeneration points and heal by 1 HP. Your healing rate is 1 HP for every 2 turns.
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*You have 180 MHP. Your BRR is 20 + 180/6 => 50. It will take 2 turns to accumulate 100 regeneration points and heal by 1 HP. Your healing rate is 1 HP for every 2 turns.
  
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*You have 90 MHP which is over 60 so you use the second formula. Your BRR is 90/6 => 15+10 => 25. It will take 4 turns to accumulate 100 regeneration points and heal by 1 HP. Your healing rate is 1 HP for every 4 turns.
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*Same as above, except you're wearing a [[troll leather armour]], which adds 80 to this rate. Your TRR is 50+80 => 130. You accumulate 100 regeneration points and heal by 1 HP every turn, with 30 left over. Your healing rate is 1 HP every turn, with an additional HP every 3.33 turns.
  
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*Same as above, except you have the regeneration 1 [[mutation]], which increases your RR by 20. Your TRR is 25+20 => 45. It will take 2.2 turns to accumulate 100 regeneration points and heal by 1 HP. Your healing rate is 1 HP for every 2.2 turns.
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==History==
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*Prior to [[0.30]], base regeneration rate was <code>MHP / 3</code> if under 60 max HP, and <code>MHP / 6 + 10</code> if over it. Regeneration rate was lower at all max HP levels.
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**This made health regeneration significantly slower at lower levels.
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*Prior to [[0.28]], the Regen+ property gave a bonus regen of 100 (1.0 HP/turn) instead of 80.
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*Prior to [[0.27]], the Regen+ property gave a bonus regeneration rate of 40 (0.4 HP/turn) instead of 100.
  
 
[[Category:Game mechanics]]
 
[[Category:Game mechanics]]

Latest revision as of 03:30, 11 February 2024

Version 0.31: This article is up to date for the latest stable release of Dungeon Crawl Stone Soup.

Your regeneration rate is the speed at which your character recovers HP. It is affected by many things, almost all of which stack.

Base regeneration

Your base regeneration rate (BRR) is calculated as follows:

20 + MHP / 6

So for every 1 max HP, BRR increases by 1/6.

Modifiers

Total regeneration rate (TRR) is modified as follows, in this order:

Because the last two effects are applied last, they are not modified by any other factors, and can heal you even if you have -Regen.

Every turn (10 auts) you accumulate regeneration points equal to your TRR. When you accumulate 100 points, you heal 1 HP, and excess regeneration points are carried over to the next turn. If your action lasted longer/shorter than 10 aut, then the regeneration is scaled with time taken.

At 100 MHP, your BRR is 36.6. In order to get 50 BRR (regain 1 HP every 2 turns), you would need 180 MHP; for 100 BRR (heal every turn), you would need 480 MHP. Items or mutations that increase regeneration are far more efficient at raising your regeneration rate than stacking HP.

Examples

  • You have 30 MHP. Your BRR is 20 + 30/6 => 25. It will take 4 turns to accumulate 100 regeneration points and heal by 1 HP. Your healing rate is 1 HP for every 4 turns.
  • You have 180 MHP. Your BRR is 20 + 180/6 => 50. It will take 2 turns to accumulate 100 regeneration points and heal by 1 HP. Your healing rate is 1 HP for every 2 turns.
  • Same as above, except you're wearing a troll leather armour, which adds 80 to this rate. Your TRR is 50+80 => 130. You accumulate 100 regeneration points and heal by 1 HP every turn, with 30 left over. Your healing rate is 1 HP every turn, with an additional HP every 3.33 turns.

History

  • Prior to 0.30, base regeneration rate was MHP / 3 if under 60 max HP, and MHP / 6 + 10 if over it. Regeneration rate was lower at all max HP levels.
    • This made health regeneration significantly slower at lower levels.
  • Prior to 0.28, the Regen+ property gave a bonus regen of 100 (1.0 HP/turn) instead of 80.
  • Prior to 0.27, the Regen+ property gave a bonus regeneration rate of 40 (0.4 HP/turn) instead of 100.
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