Unit is attacked

[Japut3h]

Probably a noob question...

Im making a spell.When a unit is attacked its supposed to do something,for example,blow up.

However,it doesnt work very well.By "is attacked" the editor obviously refers to the point when the enemy unit starts attacking,so my problem is that the spell looks pretty bad.

Example: Attacker fires a missile.Missile gets to 1/10 of its way to the target,target blows up.This doesnt look good at all,since the point of the spell is to look like the hit caused the explosion.

There are tons of different units with different missile speeds and attack speed animations,so i cant rely on the "wait" funcion.

Is there a way to make an action trigger when a unit takes damage?Ive looked for such an event but couldnt find it.

 

[GhostWolf]

That requiers a Damage Detection system which is really not suggested in GUI (because it will bug in case more then one unit gets attacked at the same time which is a big possiblity in warcraft maps).

I will maybe try to make one in JASS soon.

In case you do want to make it in GUI, you will basicly need to set the attacked unit (via the "a unit is attacked") to a variable and create another trigger that will have as a event the "specific unit gets hit" with the variable.

If you ever tried to make something like this, you probably know you can't put variable values in the "unit gets hit" event so you'll need to add it in a "add event" action in yet another trigger.

Im just too lazy to make it at the moment to show you ^^

 

[PurplePoot]

http://www.wc3jass.com/viewtopic.php?t=2608

 

[Japut3h]

So all i should do is copy the text,and paste it where?

Sorry but im a mega noob with JASS

 

[GhostWolf]

Put it in a trigger called "AddDmg" (name the trigger before you put in the code).
You will need to add actions to it as you can see.

By the way purple, wouldn't creating a new trigger each time a unit is attacked be more efficient then creating it for every unit on the map ?
Also, I didn't know you can make the Init function act like a normal function instead of only assigning the event/conditions/actions, c00l !

 

[Need_O2]

lol my system has TriggerRegisterDamageEvent(<trigger>) but its vjass...

 

[PurplePoot]

GhostWolf, then the events build up, and stay forever, which is not particulairly ideal.

 

[GhostWolf]

Well, couldn't we remove them after say, 2 seconds or so ?

 

[PurplePoot]

You can't remove a single event; it's all or nothing.

 

[GhostWolf]

And can't you remove the trigger once it has done its actions ?

 

[Need_O2]

By the way purple, wouldn't creating a new trigger each time a unit is attacked be more efficient then creating it for every unit on the map ?
Also, I didn't know you can make the Init function act like a normal function instead of only assigning the event/conditions/actions, c00l !

no...
(lol I quoted you)

 

[PurplePoot]

And can't you remove the trigger once it has done its actions ?

Then any other actions in progress from that trigger would be stopped in their tracks (ie if another unit was also attacking, which is likely...)

 

[GhostWolf]

I meant that the new function will remove itself after it has done.
And it can be done with timers, no ? since timers don't freeze the function.

 

[PurplePoot]

GhostWolf, you cannot remove single events, and what I meant was that if you killed the trigger, all other (needed) events would be killed too.

 

[GhostWolf]

I think you didn't get me.

Once a unit is attacked, you create a trigger that will activate when that unit is hit, do your actions, and then delete ITSELF.
Im not really sure its possible since things can't usually delete themselves lol

 

[PurplePoot]

Oh, it's possible, but that doesn't work for spells.

Also, it's most likely slower if you have lots of stuff attacking than just having innate triggers on everything.

 

[GhostWolf]

Oh, it's possible, but that doesn't work for spells.

What do you mean "doesn't work for spells" ? and can you give me an example of how to make such a thing ? pleaseeeeee

 

[PurplePoot]

I mean that damage detection also detects damage from spells and triggers, but if you only added the event on attack then it wouldn't be very accurate... (And while this thread is for A Unit is Attacked, it's always handy to have a tool that is less restricted and with no great disadvantages to being so)

 

[GhostWolf]

Right, didn't think about that.

 

[DiscipleOfLife]

@GhostWOlf
This system does exactly what you described.

 

[PurplePoot]

This system falters if you cast a damaging spell on the target within the window of attack.
It's neat though, it functions the same as the orb system just lacks the spell/attack differentiation the orb system has.
So... It might be useful for a select few people.

That's a problem.

 

[Need_O2]

[Off-topic]
Do you know a good buff applier ability (I think slow poison doesnt work with AoE's).
My system (lol "system", "script", "program") detects slow poison buff to detect normal attack, but it doesnt work when unit has AoE damage
/Off-topic]