Periodic check if unit is still channeling

[tml616]

My next spell is Inferno from Diablo 2. The caster had to channel this spell, and it would do damage over time to enemies in a line in front of them.

I want to make this a periodic trigger that releases "Breath of Fire" from dummy units every 0.2 seconds but only if the caster is still channeling. Now I know how to make periodic triggers from my Frozen Orb spell, but I don't know how to make the spell stop if the caster stops channeling.

 

[Asgard_Ragna]

You have to add a buff to the casting unit, then check whether the unit has the buff or not.

 

[tml616]

So like one of those invisible buffs like Aerial Shackles (Caster)?

 

[Wraith]

i think you can also use something like this

if GetUnitOrder(caster) != "breathoffire" then

 

[Asgard_Ragna]

So like one of those invisible buffs like Aerial Shackles (Caster)?

For example, but you could also use an visible buff. About the Jass cript, sorry I have no clue if that works.

 

[Eleandor]

Use some kind of flag (e.g. set custom value of a unit to 1, or use Table, ...) that tells you whether the unit is channeling the spell or not. When the unit starts channeling it, set the flag to 1, when the unit stops channeling set it back to 0. While the flag is set to true, do your breath of fire attack.