library FastInviz initializer Init {
include "cj_types_priv.j"
    private integer array Data
    private int Total = 0
    define{
        private Spell='A999'
        //this is spell's id
        private Dummy='h999'
        //dummy's id
        private d_p_one="Abilities\\Weapons\\VengeanceMissile\\VengeanceMissile.mdl"
        //first dummy's model
        private d_p_two="Abilities\\Weapons\\FaerieDragonMissile\\FaerieDragonMissile.mdl"
        //second model
        private speed=-10.
        //speed
        private periodic=.03
        //...
        private clear=
        {
            Total --
            Data[i] = Data[Total]
            i --
            TestStruct.destroy(dat)
        }
    }
    //===============================================
    private struct TestStruct {
    unit cast,t,d
    real dmg
    bool b
    effect e
        static method move takes nothing returns nothing
            TestStruct dat
            int i = 0
            real a,d
            loop
                exitwhen i >= Total
                dat = Data[i]
                a=Atan2(GetUnitY(dat.d)-GetUnitY(dat.t), GetUnitX(dat.d)-GetUnitX(dat.t))
                d=SquareRoot((GetUnitX(dat.d) - GetUnitX(dat.t)) * (GetUnitX(dat.d) - GetUnitX(dat.t)) + (GetUnitY(dat.d) - GetUnitY(dat.t)) * (GetUnitY(dat.d) - GetUnitY(dat.t)))
                SetUnitX(dat.d,GetUnitX(dat.d)+speed*Cos(a))
                SetUnitY(dat.d,GetUnitY(dat.d)+speed*Sin(a))
                if d <= 40 then
                    if dat.b==false then
                        UnitDamageTarget(dat.cast,dat.t,dat.dmg,true,false,ATTACK_TYPE_MELEE,DAMAGE_TYPE_UNIVERSAL ,WEAPON_TYPE_WHOKNOWS)
                        dat.t=dat.cast
                        dat.b=true
                        DestroyEffect(dat.e)
                        dat.e=AddSpecialEffectTarget(d_p_two,dat.d,"origin")
                    else
                        DestroyEffect(dat.e)
                        SetWidgetLife(dat.cast,GetWidgetLife(dat.cast)+dat.dmg)
                        KillUnit(dat.d)
                        clear
                    endif
                endif
                i ++
            endloop
        endmethod
    
    //===============================================
        static method create takes nothing returns TestStruct
            TestStruct dat = TestStruct.allocate()
            Data[Total] = dat
            Total ++
            return dat
        endmethod
    //===============================================
        method onDestroy takes nothing returns nothing
            .d=null
            .cast=null
            .t=null
        endmethod
    }
    //===============================================
    private void action(){
        TestStruct a=TestStruct.create()
        unit u=GetTriggerUnit(),t=GetSpellTargetUnit()
        a.cast=u
        a.t=t
        a.d=CreateUnit(GetOwningPlayer(u),Dummy,GetUnitX(u),GetUnitY(u),GetUnitFacing(u))
        a.e=AddSpecialEffectTarget(d_p_one,a.d,"origin")
        a.dmg=120
        a.b=false
        u=null
        t=null
    }
    //===============================================
    private bool cond(){return GetSpellAbilityId() == Spell}
    //===============================================
    private void Init(){
        trigger gg=CreateTrigger()
        integer index=0
        TimerStart(CreateTimer(),periodic,true,function TestStruct.move)
        loop
        exitwhen(index==13)
            TriggerRegisterPlayerUnitEvent(gg,Player(index),EVENT_PLAYER_UNIT_SPELL_CAST, null)
            index ++
        endloop
        TriggerAddCondition( gg, Condition( function cond ) )
        TriggerAddAction( gg, function action )
        gg=null
    }
}