Lua Thorns from Diablo2, can somebody check the code?

[alk cod]

local x = getCreatureHealth(cid)
local y = getPlayerStorageValue(uid, 8514)
local z = -(1/100)x

function onCastSpell(cid, var)
setPlayerStorageValue(uid, y, x)
if doCreatureAddHealth(cid, z)
setPlayerStorageValue(uid, y, x)
doAreaCombatHealth(cid, type, pos, AREA_CIRCLE2X2 , (1/2)x+z, x+z, CONST_ME_ENERGYAREA)
end
setPlayerStorageValue(uid, y, 0)
end

I know that i cant do luas and xmls but I try

Its script to return injury to somebody who attacks player.

1. The first is to set storage that saves how many player have health
2. Next checks if somebody attacks player.
3. Next - new storage saves health
4. Last - if somebody attacked player - id does damage to area.

 

[BloodGauntlet]

So you want this to be a spell? Which version of TFS are you using?

 

[alk cod]

1.2

 

[Infernum]

1.2

should use cast spell only to toggle storage value on the player, and use health/mana statschanges to check for storage then do combat