Old script [need fixing]

[Evan]

I have an old script, NOT too old though, but old, and it has an error.

[13:25:36.958] [Error - Action Interface]
[13:25:36.959] data/actions/scripts/crossbow power 5.luanUse
[13:25:36.960] Description:
[13:25:36.961] (luaAddEvent) Callback parameter should be a function.

local exhaust = createConditionObject(CONDITION_EXHAUST) 
setConditionParam(exhaust, CONDITION_PARAM_TICKS, 10000) 

local combatpara = createCombatObject()
setCombatParam(combatpara, COMBAT_PARAM_TARGETCASTERORTOPMOST, true)
setCombatParam(combatpara, COMBAT_PARAM_EFFECT, CONST_ME_MAGIC_RED)

local conditionpara = createConditionObject(CONDITION_PARALYZE)
setConditionParam(conditionpara, CONDITION_PARAM_TICKS, 3000)
setConditionFormula(conditionpara, -0.9, 0, -0.9, 0)
setCombatCondition(combatpara, conditionpara)

local combat = createCombatObject() 
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE) 
setCombatParam(combat, COMBAT_PARAM_BLOCKARMOR, true) 
setCombatParam(combat, COMBAT_PARAM_DISTANCEEFFECT, CONST_ANI_INFERNALBOLT) 
function onGetFormulaValues(cid, level, skill, attack, factor) 
	return -(((skill + 100) / 3) + (level / 5)), -((skill + 100) + (level / 5)) 
end 
setCombatCallback(combat, CALLBACK_PARAM_SKILLVALUE, "onGetFormulaValues") 

function onUse(cid, item, fromPosition, itemEx, toPosition)
	if getPlayerMana(cid) >= 20 then 
		if not hasCondition(cid, CONDITION_EXHAUST) then 
			if getCreatureTarget(cid) > 0 then 
				if getPlayerSlotItem(cid, CONST_SLOT_AMMO).itemid == 2543 then 
					for i = 1, 2 do
						addEvent(doAddCondition(cid, exhaust), 0, cid)
						addEvent(doRemoveItem(getPlayerSlotItem(cid, CONST_SLOT_AMMO).uid, 2), 0, cid)
						addEvent(doPlayerAddSkillTry(cid, SKILL_DISTANCE, 10) , 0, cid)
						addEvent(doCreatureAddMana(cid, -20), 0, cid)
						addEvent(doCombat, 100, cid, combat, numberToVariant(getCreatureTarget(cid)))
						addEvent(doSendMagicEffect, 100, getThingPos(getCreatureTarget(cid)), CONST_ME_MORTAREA)
						addEvent(doCombat, 200, cid, combat, numberToVariant(getCreatureTarget(cid)))
						addEvent(doSendMagicEffect, 200, getThingPos(getCreatureTarget(cid)), CONST_ME_MORTAREA)
						addEvent(doCombat, 300, cid, combat, numberToVariant(getCreatureTarget(cid)))
						addEvent(doSendMagicEffect, 300, getThingPos(getCreatureTarget(cid)), CONST_ME_MORTAREA)
						addEvent(doCombat, 400, cid, combat, numberToVariant(getCreatureTarget(cid)))
						addEvent(doSendMagicEffect, 400, getThingPos(getCreatureTarget(cid)), CONST_ME_MORTAREA)
						addEvent(doCombat, 500, cid, combat, numberToVariant(getCreatureTarget(cid)))
						addEvent(doSendMagicEffect, 500, getThingPos(getCreatureTarget(cid)), CONST_ME_MORTAREA)
						addEvent(doCombat, 600, cid, combat, numberToVariant(getCreatureTarget(cid)))
						addEvent(doSendMagicEffect, 600, getThingPos(getCreatureTarget(cid)), CONST_ME_MORTAREA)
						addEvent(doCombat, 700, cid, combat, numberToVariant(getCreatureTarget(cid)))
						addEvent(doSendMagicEffect, 700, getThingPos(getCreatureTarget(cid)), CONST_ME_MORTAREA)
						addEvent(doCombat, 800, cid, combat, numberToVariant(getCreatureTarget(cid)))
						addEvent(doSendMagicEffect, 800, getThingPos(getCreatureTarget(cid)), CONST_ME_MORTAREA)
						addEvent(doCombat, 900, cid, combat, numberToVariant(getCreatureTarget(cid)))
						addEvent(doSendMagicEffect, 900, getThingPos(getCreatureTarget(cid)), CONST_ME_MORTAREA)
						addEvent(doCombat, 1000, cid, combat, numberToVariant(getCreatureTarget(cid)))
						addEvent(doSendMagicEffect, 1000, getThingPos(getCreatureTarget(cid)), CONST_ME_MORTAREA)
						break
					end
					return true
				else 
					return doPlayerSendCancel(cid, 'You don\'t have any ammunition.') 
				end 
			else 
				return doPlayerSendDefaultCancel(cid, RETURNVALUE_YOUCANONLYUSEITONCREATURES) 
			end 
		else 
			return doPlayerSendDefaultCancel(cid, RETURNVALUE_YOUAREEXHAUSTED) 
		end 
	else 
		return doPlayerSendDefaultCancel(cid, RETURNVALUE_NOTENOUGHMANA) 
	end 
end

I really don't know what's wrong with it. It's an action script.

 

[Cykotitan]

local exhaust = createConditionObject(CONDITION_EXHAUST)
setConditionParam(exhaust, CONDITION_PARAM_TICKS, 10000)

local combatpara = createCombatObject()
setCombatParam(combatpara, COMBAT_PARAM_TARGETCASTERORTOPMOST, true)
setCombatParam(combatpara, COMBAT_PARAM_EFFECT, CONST_ME_MAGIC_RED)

local conditionpara = createConditionObject(CONDITION_PARALYZE)
setConditionParam(conditionpara, CONDITION_PARAM_TICKS, 3000)
setConditionFormula(conditionpara, -0.9, 0, -0.9, 0)
setCombatCondition(combatpara, conditionpara)

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
setCombatParam(combat, COMBAT_PARAM_BLOCKARMOR, true)
setCombatParam(combat, COMBAT_PARAM_DISTANCEEFFECT, CONST_ANI_INFERNALBOLT)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_MORTAREA)

function onGetFormulaValues(cid, level, skill, attack, factor)
	return -(((skill + 100) / 3) + (level / 5))*2, -((skill + 100) + (level / 5))*2
end
setCombatCallback(combat, CALLBACK_PARAM_SKILLVALUE, "onGetFormulaValues")

local function cast(cid, combat, var, n)
	if isPlayer(cid) then
		doCombat(cid, combat, var)
		n = n - 1
		if n > 0 then
			addEvent(cast, 100, cid, combat, var, n)
		end
	end
end

function onUse(cid, item, fromPosition, itemEx, toPosition)
	if getPlayerMana(cid) >= 20 then 
		if not hasCondition(cid, CONDITION_EXHAUST) then 
			local target = getCreatureTarget(cid)
			if target ~= 0 then
				local ammo = getPlayerSlotItem(cid, CONST_SLOT_AMMO)
				if ammo.itemid == 2543 and ammo.type >= 2 then
					doAddCondition(cid, exhaust)
					doRemoveItem(ammo.uid, 2)
					doPlayerAddSkillTry(cid, SKILL_DISTANCE, 10)
					doCreatureAddMana(cid, -20, false)
					doPlayerAddSpentMana(cid, 20)
					cast(cid, combat, numberToVariant(target), 10)	
				else
					doPlayerSendCancel(cid, 'You need to have 2 bolts in your ammo slot.')
				end
			else
				doPlayerSendDefaultCancel(cid, RETURNVALUE_YOUCANONLYUSEITONCREATURES)
			end
		else
			doPlayerSendDefaultCancel(cid, RETURNVALUE_YOUAREEXHAUSTED)
		end
	else
		doPlayerSendDefaultCancel(cid, RETURNVALUE_NOTENOUGHMANA)
	end
	return true
end

 

[Evan]

Ah, thanks rep++