fgo-docs

NP Gain

NP Gain formula

Attacking NP

NP% per hit =
(17)    Round Down(
(18)        Round Down(
(19)            offensiveNPRate
(20)            * (firstCardBonus + (cardNpValue * max(1 + cardMod, 0)))
(21)            * enemyServerMod
(22)            * (1 + npChargeRateMod)
(23)            * criticalModifier
            )
(24)        * overkillModifier
        )

Mapping of damage formula terms to buff actions:

• cardMod = atkSvt.commandNpAtk - target.commandNpDef
• npChargeRateMod = atkSvt.dropNp

Other constants lookup:

• offensiveNPRate: NiceServant.noblePhantasms.npGain
• firstCardBonus, cardNpValue:
  • firstCardBonus: NiceCard.card.order.addTdGauge
  • cardNpValue: NiceCard.card.order.adjustTdGauge
• enemyServerMod: sent from server cache.replaced.battleInfo.userSvt.tdRate
• criticalModifier: NiceConstant.CRITICAL_TD_POINT_RATE = 2
• overkillModifier: NiceConstant.OVER_KILL_NP_RATE = 1.5

Defending NP

NP% per hit =
        Round Down(
(25)        Round Down(
(26)            defensiveNPRate
(27)            * enemyServerMod
(28)            * (1 + npChargeRateMod)
(29)            * (1 + defensiveChargeRateMod)
            )
            * overkillModifier
        )

Mapping of damage formula terms to buff actions:

• npChargeRateMod = defSvt.dropNp
• defensiveChargeRateMod = defSvt.dropNpDamage

Other constants lookup:

• defensiveNPRate: NiceServant.npGain.defence
• enemyServerMod: sent from server cache.replaced.battleInfo.userSvt.tdAttackRate (Note that this is a different variable from the enemyServerMod in the attacking NP formula above. They are usually the same but they can be different.)
• overkillModifier: NiceConstant.OVER_KILL_NP_RATE = 1.5