Stopping unit from casting instant abilities

[Giygas]

Hello again. Is there a way to prevent a unit from casting instant abilities (e.g. berserk, channel no target)?

For solutions I've tried:
- ordering the unit to stop when it begins channeling. This does not interrupt instant abilities like berserk, so it does not work. I have attached a testmap which shows an example of this problem.
- removing the ability, then adding it again. This does interrupt instant abilities, but it also drains mana. I would prefer not having to store the mana cost of each level of every ability, so I do not want to do this if it is not necessary.

 

[LordDz]

Why do you need to stop instant casting spells from being cast? Wouldn't it be better to disable them so the user knows he/she can't cast it?

 

[Giygas]

It's because using requirements for spells takes a short time for the command card to update. In my map it's possible to have two or more instant cast abilities. In that short time where I modify spell requirements, I could cast all of my instant cast spells at that moment and they would go through. Disabling abilities also removes them from command card which also looks ugly and hides cooldowns (I'm trying to implement a global cooldown).

 

[Jaina Proudless]

Hello again. Is there a way to prevent a unit from casting instant abilities (e.g. berserk, channel no target)?

For solutions I've tried:
- ordering the unit to stop when it begins channeling. This does not interrupt instant abilities like berserk, so it does not work. I have attached a testmap which shows an example of this problem.
- removing the ability, then adding it again. This does interrupt instant abilities, but it also drains mana. I would prefer not having to store the mana cost of each level of every ability, so I do not want to do this if it is not necessary.

I don't really understand what you mean

You have to manually click the berserk ability (the one jungle troll berserkers have) in order to use. I don't get what you mean by instant abilities...

 

[Giygas]

Never mind, I figured out a solution. I decided to remove and add the cast ability, order the unit to stop, then set the unit's mana back to its original amount with a 0 second timer. I can't believe I didn't think of that earlier.

 

[rulerofiron99]

Might be easier to intercept the order and tell the unit to stop before it even begins casting.

 

[Wietlol]

Make a trigger with the event "a unit is issued an order with no target" and issue the unit to stop.
to re-order units you must wait until the original order has been given.
this can be achieved by either having a 0 seconds wait timer or disabling the trigger.
i have a snippet for the first solution but cannot upload it.
some people including jonbon has got it and can give it to you.
icemanbo showed me the second solution and i am not familiar with it so he might explain it.

once you did that. you must make the instant cast abilities "non-instant cast".
just add 0.01 seconds casting time in the object editor