function CastSpell takes unit caster, unit target, integer spell, integer level, integer order returns nothing
    local unit u = CreateUnit(GetOwningPlayer(caster), 'nwad', GetUnitX(target), GetUnitY(target), 0)  
    call UnitApplyTimedLife(u, 'BTLF', 2)
    call UnitAddAbility(u, spell)
    call SetUnitAbilityLevel(u, spell, level)
    call IssueTargetOrderById(u,order,target)
    set u=null
endfunction

function Missle_Actions takes nothing returns nothing
    local integer sh=GetHandleId(GetTriggeringTrigger())
    local unit u=LoadUnitHandle(udg_h,sh,1)
    local real speed=LoadReal(udg_h,sh,2)
    local real maxfly=LoadReal(udg_h,sh,3)
    local real radius=LoadReal(udg_h,sh,4)
    local integer spell=LoadInteger(udg_h,sh,5)
    local integer spelllvl=LoadInteger(udg_h,sh,6)
    local integer order=LoadInteger(udg_h,sh,7)
    local real damage=LoadReal(udg_h,sh,8)
    local unit owner=LoadUnitHandle(udg_h,sh,9)
    local real StartX=LoadReal(udg_h,sh,10)
    local real StartY=LoadReal(udg_h,sh,11)
    local real X=GetUnitX(u)
    local real Y=GetUnitY(u)
    local group g=CreateGroup()
    local destructable d
    local unit u2
    local boolean b=true
    local real angle=GetUnitFacing(u)*0.0174
    call DisplayTextToForce( GetPlayersAll(), I2S(sh) )
    set X=X+Cos(angle)*speed
    set Y=Y+Sin(angle)*speed
    if (not IsTerrainPathable(X,Y,PATHING_TYPE_ANY)) or (X-StartX)*(X-StartX)+(Y-StartY)*(Y-StartY)>maxfly*maxfly then
      set b=false
    endif
    if b then
      call SetUnitX(u,X)
      call SetUnitY(u,Y)
      call GroupEnumUnitsInRange(g,X,Y,radius,Condition(function Missle_c))
      loop
          set u2=FirstOfGroup(g)
          exitwhen u2==null
          call GroupRemoveUnit(g,u2)
          if (u2!=owner) then
            call CastSpell(owner,u2,spell,spelllvl,order)
            set b=false
          endif
      endloop
    endif
    if b then
      set d=RandomDestructableInRectBJ(RectFromCenterSizeBJ(GetUnitLoc(u),radius*1.5,radiu  s*1.5),Condition(function Missle_c2))
      if d!=null then
        call SetDestructableLife(d,GetDestructableLife(d)-damage)
        set b=false
      endif
    endif
    set owner=null
    call DestroyGroup(g)
    set d=null
    set u2=null
    if not b then
      call RemoveUnit(u)
      call FlushChildHashtable(udg_h,sh)
      call DestroyTrigger(GetTriggeringTrigger())
    endif
    set u=null
endfunction

function Missle takes integer dummy,real StartX,real StartY,real angle,real speed,real maxfly,real radius,integer spell,integer spelllvl,integer order,real damage,unit owner returns nothing
   local unit u=CreateUnit(GetOwningPlayer(owner),dummy,StartX,StartY,angle)
   local trigger t=CreateTrigger()
   local integer sh=GetHandleId(t)
   call SaveUnitHandle(udg_h,sh,1,u)
   call SaveReal(udg_h,sh,2,speed)
   call SaveReal(udg_h,sh,3,maxfly)
   call SaveReal(udg_h,sh,4,radius)
   call SaveInteger(udg_h,sh,5,spell)
   call SaveInteger(udg_h,sh,6,spelllvl)
   call SaveInteger(udg_h,sh,7,order)
   call SaveReal(udg_h,sh,8,damage)
   call SaveUnitHandle(udg_h,sh,9,owner)
   call SaveReal(udg_h,sh,10,StartX)
   call SaveReal(udg_h,sh,11,StartY)
   call TriggerRegisterTimerEventPeriodic(t,0.03)
   call TriggerAddAction(t,function Missle_Actions)
   set u=null
   set owner=null
   set t=null
endfunction