triggered ability starting before projectile hits

[BossMaker]

My skill Magic Bolt (based on firebolt) will deal additional damage based on mana. However, everytime it is casted (using the Unit - Starts the effect of an Ability) the additional damage happens even before the projectile hits the enemy.

How to make it so that the triggered ability will happen once the projectile hits?

 

[Rheiko]

You have to trigger the firebolt as well. You can use some missile system which you can find in the spell section.

 

[BossMaker]

this is what I meant: For example, you use a the spell Web. Since web is a missile-ability, I will use a trigger that will deal 100 damage to the same targeted unit using Unit - Starts the effect of Ability. However, that 100 damage will occur instantaneously as I use the spell. It wont wait for the web to actually hit the target before it triggers.

 

[Rheiko]

That's why I said you need to trigger the ability as well. You can't use the ability that already exist in Warcraft because they are hard coded.

Try BPower's Missile System - Link

 

[BossMaker]

That's why I said you need to trigger the ability as well. You can't use the ability that already exist in Warcraft because they are hard coded.

Try BPower's Missile System - Link

It doesnt have anything on a targeted unit. The system is for missile manipulation for unit collision, target area impact and/or destructible collision only.

 

[BossMaker]

That's why I said you need to trigger the ability as well. You can't use the ability that already exist in Warcraft because they are hard coded.

Try BPower's Missile System - Link

anyway, I think I'll give up on the idea.

 

[Dehua_Darbuya]

No, wait!

What Rheiko was trying to explain is that when you use the event, Unit - Starts the effect of Ability, it occurs the moment a spell is cast. For instance when you cast Firebolt, it starts as soon as it is launched. There is no event to detect when a spell has landed unfortunately, so you need to use a missile system (or create your own mini-system specifically for your map) to make something like this work.

 

[Rheiko]

Try this one - Link
I did not make it configurable so I hope you can configure it by yourself. I have put some comments there so you can understand how some lines work.

 

[RobertMKD]

Use an ability that applies buff on the target on impact, as a base ability. Then make a trigger that happens every 0.01 seconds and check for a unit that has that buff, if there is such unit, remove the buff and do whatever you want to happen next. If you want to stun the unit, then you'll need a dummy to cast firebolt on it with 9999 missile speed.

 

[SAUS]

Use an ability that applies buff on the target on impact, as a base ability. Then make a trigger that happens every 0.01 seconds and check for a unit that has that buff, if there is such unit, remove the buff and do whatever you want to happen next. If you want to stun the unit, then you'll need a dummy to cast firebolt on it with 9999 missile speed.

That is suuuper costly for just a spell like this.

If you have a spell that applies a unique buff, you can just detect it with a damage detection system. You could also use a dummy to cast the spell (base the hero spell off of chain lightning or channel). Then when the special dummy deals damage, you know it was from this spell. This would need some way to attach the dummy to the parent (or have it not be MUI at all). Both of those options require a DDS. Missile system definitely works as well, as noted already.

 

[RobertMKD]

That is suuuper costly for just a spell like this.

If you have a spell that applies a unique buff, you can just detect it with a damage detection system. You could also use a dummy to cast the spell (base the hero spell off of chain lightning or channel). Then when the special dummy deals damage, you know it was from this spell. This would need some way to attach the dummy to the parent (or have it not be MUI at all). Both of those options require a DDS. Missile system definitely works as well, as noted already.

lol.. You still think my method is suuuuuuper costly?
You just detect a unit that has that buff which is only used for that spell, remove the buff and do the rest of the job.. To admit, a damage detection system is better than 'every 0.01 sec' trigger, but it works either way...

 

[SAUS]

It wouldn't be so bad if you only check the target of the spell, I guess. It's just not how I would want to trigger something like this. You also need to make sure you know who casted the spell when it hits so that you can get the mana value. It's doable, but I would use a missile system or DDS for it.

 

[Rheiko]

Well, any other missile system except BPower's because it doesn't support Homing Missile.
I guess the one I made works just fine.

 

[Tasyen]

Well, Homing Missiles are acually supported by BPower's Missile System .
By setting

• Set Missile__Target = (Target unit of ability being cast)
• Set Missile__OnFinish = ON Reach Trigger

 

[Rheiko]

Hmm, I did not browse his code thoroughly then.

 

[Kyrbi0]

Can't you just add a Wait timer to the trigger? Or...

 

[SAUS]

Can't you just add a Wait timer to the trigger? Or...

This can't work. Even if you calculate the time based on distance and speed and then use a timer to get an accurate measurement for the delay, it will get messed up if the target moves. It will always have potential to be mistimed with the effect.

There's probably some way to calculate it for variable delay, but then you're getting to the point where building a missile system for homing projectiles will be more simple.