Ability Duration: Difference between revisions

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'''Ability Duration''' determines how long the effect of abilities and items last.

== Calculation ==

=== Calculating Ability Duration ===

Multiple sources of Ability Duration stack '''multiplicatively''', not additively:

<math>\text{Total Ability Multiple sources of Ability Duration stack '''multiplicatively''', not additively:} = 1 - (1 - R_1) \times (1 - R_2) \dots</math>

'''Example:'''

With '''{{DataProp|{{#vardefineecho: Item1|Magic Carpet}}|BonusAbilityDurationPercent}}%''' from {{ItemIcon|{{#var: Item1}}}} and '''{{DataProp|{{#vardefineecho: Item2|Diviner's Kevlar}}|BonusAbilityDurationPercent}}%''' from {{ItemIcon|{{#var: Item2}}}}:

# Convert percentages to decimals: {{DataProp|{{#var: Item1}}|BonusAbilityDurationPercent}}% to {{#vardefineecho: Item1Duration|{{#expr: {{DataProp|{{#var: Item1}}|BonusAbilityDurationPercent}} / 100}}}} and {{DataProp|{{#var: Item2}}|BonusAbilityDurationPercent}}% to {{#vardefineecho: Item2Duration|{{#expr: {{DataProp|{{#var: Item2}}|BonusAbilityDurationPercent}} / 100}}}}.

# Subtract from 1: (1 - {{#var: Item1Duration}}) = '''{{#expr: 1 - {{#var: Item1Duration}}}}''' and (1 - {{#var: Item2Duration}}) = '''{{#expr: 1 - {{#var: Item2Duration}}}}'''.

# Multiply the differences: {{#expr: 1 - {{#var: Item1Duration}}}} × {{#expr: 1 - {{#var: Item2Duration}}}} = '''{{#vardefineecho: CombinedItemDuration|{{#expr: (1 - {{#var: Item1Duration}}) * (1 - {{#var: Item2Duration}}) round 4}}}}'''.

# Subtract from 1: 1 - {{#var: CombinedItemDuration}} = '''{{#expr: 1 - {{#var: CombinedItemDuration}} round 4}}'''.

# Total Ability Duration bonus is '''{{#expr: (1 - {{#var: CombinedItemDuration}}) * 100 round 1}}%''', not {{#expr: ({{#var: Item1Duration}} + {{#var: Item2Duration}}) * 100 round 1}}%.

== Sources of Ability Duration ==

Ability Duration: Difference between revisionsGive feedback

~2026-LaneFireUrn1085 (talk)

@@ Line 1: / Line 1: @@
 '''Ability Duration''' determines how long the effect of abilities and items last.
+== Calculation ==
+=== Calculating Ability Duration ===
+Multiple sources of Ability Duration stack '''multiplicatively''', not additively:
+<math>\text{Total Ability Multiple sources of Ability Duration stack '''multiplicatively''', not additively:} = 1 - (1 - R_1) \times (1 - R_2) \dots</math>
+'''Example:'''
+With '''{{DataProp|{{#vardefineecho: Item1|Magic Carpet}}|BonusAbilityDurationPercent}}%''' from {{ItemIcon|{{#var: Item1}}}} and '''{{DataProp|{{#vardefineecho: Item2|Diviner's Kevlar}}|BonusAbilityDurationPercent}}%''' from {{ItemIcon|{{#var: Item2}}}}:
+# Convert percentages to decimals: {{DataProp|{{#var: Item1}}|BonusAbilityDurationPercent}}% to {{#vardefineecho: Item1Duration|{{#expr: {{DataProp|{{#var: Item1}}|BonusAbilityDurationPercent}} / 100}}}} and {{DataProp|{{#var: Item2}}|BonusAbilityDurationPercent}}% to {{#vardefineecho: Item2Duration|{{#expr: {{DataProp|{{#var: Item2}}|BonusAbilityDurationPercent}} / 100}}}}.
+# Subtract from 1: (1 - {{#var: Item1Duration}}) = '''{{#expr: 1 - {{#var: Item1Duration}}}}''' and (1 - {{#var: Item2Duration}}) = '''{{#expr: 1 - {{#var: Item2Duration}}}}'''.
+# Multiply the differences: {{#expr: 1 - {{#var: Item1Duration}}}} × {{#expr: 1 - {{#var: Item2Duration}}}} = '''{{#vardefineecho: CombinedItemDuration|{{#expr: (1 - {{#var: Item1Duration}}) * (1 - {{#var: Item2Duration}}) round 4}}}}'''.
+# Subtract from 1: 1 - {{#var: CombinedItemDuration}} = '''{{#expr: 1 - {{#var: CombinedItemDuration}} round 4}}'''.
+# Total Ability Duration bonus is '''{{#expr: (1 - {{#var: CombinedItemDuration}}) * 100 round 1}}%''', not {{#expr: ({{#var: Item1Duration}} + {{#var: Item2Duration}}) * 100 round 1}}%.
 == Sources of Ability Duration ==