need help with a few spells

[Elaney]

function returndamage(parameters)
 
-- Heal self part
 
	local currenthealth = getCreatureHealth(parameters.cid) or 0
	local healthlost = parameters.starthealth - currenthealth
	local finalcasterpos = getCreaturePosition(parameters.cid)
 
	if healthlost > 0 then
 
		doSendAnimatedText(finalcasterpos, healthlost, 207)
		doCreatureAddHealth(parameters.cid, healthlost)
		doSendMagicEffect(finalcasterpos, 39)
	else
		doSendAnimatedText(finalcasterpos, 'No damage', 207)
	end
 
-- Damage others part

if isCreature(parameters.cid) then
	playerList = getCreaturesInRange(parameters.casterpos, 10, 10, 1, 1)
	for _, pid in ipairs(playerList) do
 
		if getCreatureName(parameters.cid) ~= getCreatureName(pid) then
			doSendAnimatedText(getCreaturePosition(pid), 'Targeted', 144)
			doSendMagicEffect(getCreaturePosition(pid), 4)
			doCreatureAddHealth(pid, (-healthlost))
		end
	end
end
 
 
 
 
end
 
function stillCharging(parameters)
 
	local currentcasterpos = getCreaturePosition(parameters.cid)
	doSendMagicEffect(currentcasterpos, 9)	
 
	parameters.counter = parameters.counter - 1
	if parameters.counter <= 0 then	doSendAnimatedText(currentcasterpos, 'charging..', 72)	parameters.counter = parameters.textinterval end
end
 
 
 
function onCastSpell(cid, var)
 
-- Setting variables --
local casterpos = getCreaturePosition(cid)
local starthealth = getCreatureHealth(cid)
local notifyinterval = 500
local textinterval = 2
local chargeduration = 8000
local counter = textinterval
local parameters = {cid = cid, starthealth = starthealth, casterpos = casterpos, counter = counter, textinterval = textinterval}
-- /variables set
 
-- perform spells
 
doSendMagicEffect(casterpos, 38)
doSendAnimatedText(casterpos, 'CHARGE', 207)
 
addEvent(returndamage, chargeduration, parameters)
--addEvent(doDamage, chargeduration, parameters)
 
for i=1, 8  do
addEvent(stillCharging, notifyinterval, parameters)
notifyinterval = notifyinterval + 1000
end
 
-- finish off script
return true
end

what it's supposed to do is that it's give back the damage it's recived under a couple of seconds. and the errors i get is.

error:

attempt to call global 'getcreaturesinrange' (a nil value)

 

[Elaney]

bump

 

[Elaney]

bump

 

[Elaney]

bump

 

[Cykotitan]

Find the function on the forum and add it.