Difference between revisions of "AC calculations"
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This page explains how the game calculates and uses [[AC]]. | This page explains how the game calculates and uses [[AC]]. | ||
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The formula for calculating the actual AC granted by wearing a piece of armour is as follows: | The formula for calculating the actual AC granted by wearing a piece of armour is as follows: | ||
| − | (base AC) * (22 + Armour skill + | + | (base AC) * (22 + Armour skill + Beogh bonus/2) / 22 |
| − | This means that every level in the [[Armour skill]] increases a piece of armour's AC by approximately 4.5% of its base AC. | + | This means that every level in the [[Armour skill]] increases a piece of armour's AC by approximately 4.5% of its base AC. If you're a follower of [[Beogh]], you receive an additional bonus, increasing with [[Piety]]. This additional bonus maxes out at +10 when you reach 160 Piety. |
| − | + | A follower of Beogh with max Piety and 27 Armour skill has the AC of all armour pieces increased to roughly 245% of their base value. | |
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Note that fractional AC from multiple pieces of armour does add! Fractions are not truncated until the contribution from all armour pieces are summed. For example, both a [[helmet]] and a pair of [[gloves]] have 1 base AC, so at an Armour skill of 12 they each provide 1.55 AC, which is rounded down to 1 AC when worn individually. When worn together, their contributions sum to 3.1 AC, which is rounded down to 3 AC. | Note that fractional AC from multiple pieces of armour does add! Fractions are not truncated until the contribution from all armour pieces are summed. For example, both a [[helmet]] and a pair of [[gloves]] have 1 base AC, so at an Armour skill of 12 they each provide 1.55 AC, which is rounded down to 1 AC when worn individually. When worn together, their contributions sum to 3.1 AC, which is rounded down to 3 AC. | ||
Revision as of 11:48, 3 May 2014
This page explains how the game calculates and uses AC.
Calculating AC from Armour
The formula for calculating the actual AC granted by wearing a piece of armour is as follows:
(base AC) * (22 + Armour skill + Beogh bonus/2) / 22
This means that every level in the Armour skill increases a piece of armour's AC by approximately 4.5% of its base AC. If you're a follower of Beogh, you receive an additional bonus, increasing with Piety. This additional bonus maxes out at +10 when you reach 160 Piety.
A follower of Beogh with max Piety and 27 Armour skill has the AC of all armour pieces increased to roughly 245% of their base value.
Note that fractional AC from multiple pieces of armour does add! Fractions are not truncated until the contribution from all armour pieces are summed. For example, both a helmet and a pair of gloves have 1 base AC, so at an Armour skill of 12 they each provide 1.55 AC, which is rounded down to 1 AC when worn individually. When worn together, their contributions sum to 3.1 AC, which is rounded down to 3 AC.
Other Sources of AC
All other sources of AC are applied directly to a character's total AC and are not modified by Armour skill whatsoever. These include:
- Bonus AC from enchanted armour, rings of protection, or artefacts
- Magical AC boosts such as Ozocubu's Armour or Stoneskin
- AC from transmutations such as Necromutation, Statue Form and Dragon Form
- AC from mutations (e.g. scales) and intrinsics (e.g. a naga's increasingly tougher skin)
