Try this:
local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
combat:setParameter(COMBAT_PARAM_EFFECT, CONST_ME_HITAREA)
AREA_WAVEBOLT = {
{1,1,1, 1, 1, 1, 1, 1, 1},
{0,1,1, 1, 1, 1, 1, 1, 0},
{0,0,1, 1, 1, 1, 1, 0, 0},
{0,0,0, 1, 1, 1, 0, 0, 0},
{0,0,0, 0, 2...