random function lua, possible?

[gubbo123]

is possible do a random function in lua script?

make a script read this part

if not creature:isPlayer() then
doTargetCombatHealth(0, creature, COMBAT_PHYSICALDAMAGE, 0, 0)
position:sendMagicEffect(CONST_ME_BLOCKHIT)

or this part  50/50 % chance

if not creature:isPlayer() then
doTargetCombatHealth(0, creature, COMBAT_PHYSICALDAMAGE, -1, -15)
position:sendMagicEffect(CONST_ME_POFF)

or exist other way to do it? i need that script check if damage 0 do position:sendMagicEffect(CONST_ME_BLOCKHIT) if not is damage 0, execute this

if not creature:isPlayer() then
doTargetCombatHealth(0, creature, COMBAT_PHYSICALDAMAGE, -1, -15)
position:sendMagicEffect(CONST_ME_POFF)

 

[Infernum]

You don't need to be using doTargetCombatHealth for 0 damage, it's going to do nothing.
This is an example of a way to mimic 50/50 chance between executing 2 sets of statements:

if math.random(2) == 1 then
    -- some code
else
    -- other code
end