Ex.
local pos = getCreaturePosition(cid)
local health = xxx
local tileid = xxx
function onStepIn(cid, item, frompos, itemEx, topos)
if item.itemid == tileid then
doCreatureAddHealth(cid, health)
doSendMagicEffect
pos = position aka map location
Example: {x=1000, y=995, x=7}
end
return true
end