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[Lua] Change bind to use retail accurate random duration #6194

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Sep 1, 2024
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[Lua] Change bind to use retail accurate random duration #6194

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7 changes: 7 additions & 0 deletions scripts/globals/spells/enfeebling_spell.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -265,6 +265,13 @@ end
xi.spells.enfeebling.calculateDuration = function(caster, target, spellId, spellEffect, skillType)
local duration = pTable[spellId][7] -- Get base duration.

-- BIND spells have a special random duration the follows a normal distribution with mean=30 and std=12
if spellEffect == xi.effect.BIND then
-- Use the Box-Muller transform to change uniform dist sample to the normal dist sample
local z0 = math.sqrt(-2 * math.log(math.random())) * math.cos(2 * math.pi * math.random())
duration = utils.clamp(math.floor(30 + z0 * 12), 1, duration)
end

-- Additions to base duration.
if
spellEffect == xi.effect.BURN or
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