Spellcast interuption

[Kajik]

Hello everyone,
I am looking for little help.
I did a targeting system, when your hero (you are controlling only one unit all the time) mark his target by simple righ-clicking. This is just example:

function Targeting_Conditions takes nothing returns boolean
    return GetOwningPlayer(GetTriggerUnit()) == Player(0)
endfunction

function Targeting_Actions takes nothing returns nothing
    set udg_Target = GetOrderTargetUnit()   
endfunction

//===========================================================================
function InitTrig_Targeting takes nothing returns nothing
    local trigger Targeting = CreateTrigger(  )
    call TriggerRegisterAnyUnitEventBJ( Targeting, EVENT_PLAYER_UNIT_ISSUED_TARGET_ORDER )
    call TriggerAddCondition( Targeting, Condition( function Targeting_Conditions ) )
    call TriggerAddAction( Targeting, function Targeting_Actions )
    set Targeting = null
endfunction

Now I want all his spells go for the targeted victim. I made all his spells based on channel spell with "No target" option, and want to check all conditions by myself (distance, unit-type of targeted unit and so on). Now there is my problem. Once I find out he shouldnt be able to cast the spell (target is too far away, he is not facing the target...) I want to show some warning message and stop his cast. I tried this:

function Fireball_Conditions takes nothing returns boolean
    return GetSpellAbilityId() == 'A001'
endfunction

function Fireball_Actions takes nothing returns nothing
    call IssueImmediateOrder(GetTriggerUnit(), "stop")
endfunction

//===========================================================================
function InitTrig_Fireball_Copy takes nothing returns nothing
    local trigger Fireball = CreateTrigger(  )
    call TriggerRegisterAnyUnitEventBJ( Fireball, EVENT_PLAYER_UNIT_SPELL_CHANNEL )
    call TriggerAddCondition( Fireball, Condition( function Fireball_Conditions ) )
    call TriggerAddAction( Fireball, function Fireball_Actions )
    set Fireball = null
endfunction

He will stop the cast, spell cooldown is ok but his mana is already spent. Any ideas how to interrupt casting before he spend a mana for this spell??

 

[Viikuna]

link

Theres some AbortSpell library. I havent really used it but you should check if it does what you want.

 

[Kajik]

link

Theres some AbortSpell library. I havent really used it but you should check if it does what you want.

Awesome, I read the post below this library and there was my answer:

call PauseUnit(GetTriggerUnit(), true)
call IssueImmediateOrder(GetTriggerUnit(), "stop")
call PauseUnit(GetTriggerUnit(), false)

Simple, thanks a lot.