Here's the script and xml:
local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
combat:setParameter(COMBAT_PARAM_BLOCKARMOR, 1)
combat:setParameter(COMBAT_PARAM_EFFECT, CONST_ME_HITAREA)
AREA_BEAM1 = {
{1},
{3}
}
function onGetFormulaValues(cid, skill, attack...