melee

Tests that a unit is within melee of another unit, defaults to the player and the players target.

melee(target, source) : boolean
melee(target, source) : boolean

Example

if melee('target', 'pet') or melee() then
    -- My pet or me is in melee
end
if melee('target', 'pet') or melee() then
    -- My pet or me is in melee
end