GetUnitPower("player", power_type_health)
power_type must be of constants CombatMechanicFlags
h5. CombatMechanicFlags
* COMBAT_MECHANIC_FLAGS_DAEDRIC
* COMBAT_MECHANIC_FLAGS_HEALTH
* COMBAT_MECHANIC_FLAGS_MAGICKA
* COMBAT_MECHANIC_FLAGS_MOUNT_STAMINA
* COMBAT_MECHANIC_FLAGS_STAMINA
* COMBAT_MECHANIC_FLAGS_ULTIMATE
* COMBAT_MECHANIC_FLAGS_WEREWOLF
Just save it in a local variable which was defined outside of your callbackFunction for the event, each time the event fires.
Code:
local oldValues = {}
oldValues[COMBAT_MECHANIC_FLAGS_HEALTH] = GetUnitPower("player", COMBAT_MECHANIC_FLAGS_HEALTH)
oldValues[COMBAT_MECHANIC_FLAGS_MAGICKA] = GetUnitPower("player", COMBAT_MECHANIC_FLAGS_MAGICKA)
oldValues[COMBAT_MECHANIC_FLAGS_STAMINA] = GetUnitPower("player", COMBAT_MECHANIC_FLAGS_STAMINA)
local function OnPowerUpdate(newValue, powertypeOrCombatMechanicFlag, etc......)
--do your comparison here etc.
oldValues[powertypeOrCombatMechanicFlag] = newValue
end