Armour class - Revision history

Hordes at 20:09, 16 May 2026

2026-05-16T20:09:32Z

← Older revision		Revision as of 20:09, 16 May 2026
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	AC reduces the damage of attacks by an absolute value between 0 and your current AC value. An AC of 10 will reduce damage by a random number between 0 and 10. This applies to damage that would traditionally ignore armour in other games, such as [[spell]] magic.		AC reduces the damage of attacks by an absolute value between 0 and your current AC value. An AC of 10 will reduce damage by a random number between 0 and 10. This applies to damage that would traditionally ignore armour in other games, such as [[spell]] magic.

	The game tracks ~~your~~ AC internally using two decimal places. If AC is not a whole number, this internal number will be rounded in a weighted manner ~~when taking~~ damage. For example, with an AC of 10.60, there is a 60% chance of ~~having~~ 11 AC and 40% chance of ~~having~~ 10 AC.		The game tracks AC internally using two decimal places. If AC is not a whole number, this internal number will be rounded in a weighted manner each time damage is taken. For example, with an AC of 10.60, there is a 60% chance of AC being treated as 11 and 40% chance of AC being treated as 10.

	<code>BEAM_ELEC</code> damage (such as from [[Shock]] or [[Lightning Bolt]]) ignores half of the target's AC. <code>BEAM_FRAG</code> damage (such as from [[Sandblast]] or a [[tin of tremorstones]]) is affected three times as much by AC.		<code>BEAM_ELEC</code> damage (such as from [[Shock]] or [[Lightning Bolt]]) ignores half of the target's AC. <code>BEAM_FRAG</code> damage (such as from [[Sandblast]] or a [[tin of tremorstones]]) is affected three times as much by AC.

Hordes: rounding

2026-05-12T17:23:35Z

rounding

← Older revision		Revision as of 17:23, 12 May 2026
(No difference)

Hordes at 17:23, 12 May 2026

2026-05-12T17:23:35Z

← Older revision		Revision as of 17:23, 12 May 2026
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	{{~~version030~~}}		{{version034}}
	When something injures you, your '''armour class''' (often abbreviated to '''AC''') reduces the amount of damage you suffer. The higher the value, the better.		When something injures you, your '''armour class''' (often abbreviated to '''AC''') reduces the amount of damage you suffer. The higher the value, the better.

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	==Useful Info==		==Useful Info==
	AC reduces the damage of attacks by an absolute value between 0 and your current AC value. An AC of 10 will reduce damage by a random number between 0 and 10. This applies to damage that would traditionally ignore armour in other games, such as [[spell]] magic.		AC reduces the damage of attacks by an absolute value between 0 and your current AC value. An AC of 10 will reduce damage by a random number between 0 and 10. This applies to damage that would traditionally ignore armour in other games, such as [[spell]] magic.

			The game tracks your AC internally using two decimal places. If AC is not a whole number, this internal number will be rounded in a weighted manner when taking damage. For example, with an AC of 10.60, there is a 60% chance of having 11 AC and 40% chance of having 10 AC.

	<code>BEAM_ELEC</code> damage (such as from [[Shock]] or [[Lightning Bolt]]) ignores half of the target's AC. <code>BEAM_FRAG</code> damage (such as from [[Sandblast]] or a [[tin of tremorstones]]) is affected three times as much by AC.		<code>BEAM_ELEC</code> damage (such as from [[Shock]] or [[Lightning Bolt]]) ignores half of the target's AC. <code>BEAM_FRAG</code> damage (such as from [[Sandblast]] or a [[tin of tremorstones]]) is affected three times as much by AC.
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	==History==		==History==
			*Prior to [[0.32]], AC was not tracked to two decimal places.
	*Prior to [[0.29]], [[Frozen Ramparts]] and [[Ozocubu's Refrigeration]] ignored AC.		*Prior to [[0.29]], [[Frozen Ramparts]] and [[Ozocubu's Refrigeration]] ignored AC.
	*Prior to [[0.26]], [[Irradiate]] ignored AC.		*Prior to [[0.26]], [[Irradiate]] ignored AC.

Hordes: /* Guaranteed Damage Reduction */

2026-01-08T17:05:26Z

Guaranteed Damage Reduction

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(No difference)

imported>Hordes: /* Guaranteed Damage Reduction */

2026-01-08T17:05:26Z

Guaranteed Damage Reduction

← Older revision	Revision as of 17:05, 8 January 2026
(No difference)

imported>Hordes: /* Guaranteed Damage Reduction */

2026-01-08T17:05:26Z

Guaranteed Damage Reduction

← Older revision		Revision as of 17:05, 8 January 2026
(No difference)

imported>Hordes: /* Guaranteed Damage Reduction */

2026-01-08T17:05:26Z

Guaranteed Damage Reduction

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	''Main Article: [[GDR]]''		''Main Article: [[GDR]]''

	When taking physical damage from a ~~weapon (~~melee, ranged weapon, or throwing) attack, guaranteed damage reduction will improve AC rolls. GDR% is equal to <code>16(AC)^1/4</code>. If GDR is applied, the minimum possible AC roll will equal (damageGDR%) or (AC/2), whichever is lower. Spells and abilities, including 'physical' spells like [[Harpoon Shot]] or [[Stone Arrow]], do not use GDR. Only the player benefits from GDR.		When taking physical damage from a melee, ranged weapon, or throwing attack, guaranteed damage reduction will improve AC rolls. GDR% is equal to <code>16(AC)^1/4</code>. If GDR is applied, the minimum possible AC roll will equal (damageGDR%) or (AC/2), whichever is lower. Spells and abilities, including 'physical' spells like [[Harpoon Shot]] or [[Stone Arrow]], do not use GDR. Only the player benefits from GDR.

	==List of Damage that ignores AC==		==List of Damage that ignores AC==

Hordes: /* Guaranteed Damage Reduction */

2026-01-08T17:05:05Z

Guaranteed Damage Reduction

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	''Main Article: [[GDR]]''		''Main Article: [[GDR]]''

	When taking physical damage from a melee attack, guaranteed damage reduction will improve AC rolls. GDR% is equal to <code>16(AC)^1/4</code>. If GDR is applied, the minimum possible AC roll will equal (damageGDR%) or (AC/2), whichever is lower. ~~GDR only applies to melee~~, ~~ranged weapon~~, ~~and throwing attacks~~. Only the player benefits from GDR.		When taking physical damage from a weapon (melee, ranged weapon, or throwing) attack, guaranteed damage reduction will improve AC rolls. GDR% is equal to <code>16(AC)^1/4</code>. If GDR is applied, the minimum possible AC roll will equal (damageGDR%) or (AC/2), whichever is lower. Spells and abilities, including 'physical' spells like [[Harpoon Shot]] or [[Stone Arrow]], do not use GDR. Only the player benefits from GDR.

	==List of Damage that ignores AC==		==List of Damage that ignores AC==

Hordes: move the AC calculations part to Armour (for more consistency with shields)

2024-01-15T10:14:30Z

move the AC calculations part to Armour (for more consistency with shields)

← Older revision		Revision as of 10:14, 15 January 2024
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	<code>BEAM_ELEC</code> damage (such as from [[Shock]] or [[Lightning Bolt]]) ignores half of the target's AC. <code>BEAM_FRAG</code> damage (such as from [[Sandblast]] or a [[tin of tremorstones]]) is affected three times as much by AC.		<code>BEAM_ELEC</code> damage (such as from [[Shock]] or [[Lightning Bolt]]) ignores half of the target's AC. <code>BEAM_FRAG</code> damage (such as from [[Sandblast]] or a [[tin of tremorstones]]) is affected three times as much by AC.

			For details on how AC is calculated, see [[AC calculations]].

	===Guaranteed Damage Reduction===		===Guaranteed Damage Reduction===
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	When taking physical damage from a melee attack, guaranteed damage reduction will improve AC rolls. GDR% is equal to <code>16(AC)^1/4</code>. If GDR is applied, the minimum possible AC roll will equal (damageGDR%) or (AC/2), whichever is lower. GDR only applies to melee, ranged weapon, and throwing attacks. Only the player benefits from GDR.		When taking physical damage from a melee attack, guaranteed damage reduction will improve AC rolls. GDR% is equal to <code>16(AC)^1/4</code>. If GDR is applied, the minimum possible AC roll will equal (damageGDR%) or (AC/2), whichever is lower. GDR only applies to melee, ranged weapon, and throwing attacks. Only the player benefits from GDR.

	~~==Calculating AC Value==~~
	~~First, the AC from worn armour is equal to:<ref>{{source ref\|0.28.0\|player.cc\|5691}}</ref>~~

	~~(base AC) * (Armour skill / 22 + 1) rounded down~~

	Where "base AC" equals the ''sum'' of base AC from every worn armour (excluding any armour [[enchant]]ment). Rounding does not occur until all armour pieces have been calculated. Overall, Armour skill provides roughly +4.5% base AC per level.

	If you have the [[deformed]] or [[Jiyva mutations#Pseudopods\|Pseudopods]] mutations, you lose AC equal to <code>(body armour base AC) * 50%</code>, where the penalty is rounded down. These mutations do not stack with each other. Note that these mutations only consider base AC, not AC after Armour skill.

	~~All other sources of AC are flat, additive bonuses to your AC score, which are not impacted by Armour skill:<ref>{{source ref\|0.28.0\|player.cc\|5914}}</ref>~~
	*Value from armour [[enchant]]ment, [[rings of protection]], and [[artefact]] bonuses
	*[[Ozocubu's Armour]]
	*[[Protection]] brand
	*[[Mutation]]s
	*Innate AC from [[transformation]]s, like [[Dragon Form]] and [[Statue Form]]

	==List of Damage that ignores AC==		==List of Damage that ignores AC==
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	*Prior to [[0.29]], [[Frozen Ramparts]] and [[Ozocubu's Refrigeration]] ignored AC.		*Prior to [[0.29]], [[Frozen Ramparts]] and [[Ozocubu's Refrigeration]] ignored AC.
	*Prior to [[0.26]], [[Irradiate]] ignored AC.		*Prior to [[0.26]], [[Irradiate]] ignored AC.

	~~==References==~~
	~~<references/>~~

	[[Category:Stats]]		[[Category:Stats]]
	[[Category:Game mechanics]]		[[Category:Game mechanics]]
	[[Category:Defence]]		[[Category:Defence]]

Hordes at 08:26, 12 January 2024

2024-01-12T08:26:07Z

← Older revision		Revision as of 08:26, 12 January 2024
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	''Main Article: [[GDR]]''		''Main Article: [[GDR]]''

	When taking physical damage from a melee attack, guaranteed damage reduction will improve AC rolls. GDR% is equal to <code>16(AC)^1/4</code>. If GDR is applied, the minimum possible AC roll will equal (damageGDR%) or (AC/2), whichever is lower. GDR only applies to melee, ranged weapon, and throwing attacks.		When taking physical damage from a melee attack, guaranteed damage reduction will improve AC rolls. GDR% is equal to <code>16(AC)^1/4</code>. If GDR is applied, the minimum possible AC roll will equal (damageGDR%) or (AC/2), whichever is lower. GDR only applies to melee, ranged weapon, and throwing attacks. Only the player benefits from GDR.

	==Calculating AC Value==		==Calculating AC Value==