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Selecting units in a cone

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Level 16
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Pick units around the caster and then compare the angle between picked unit and caster to the angle between the target point and the caster. You will get a circular sector shape.
You should calculate the angle between the target point and the caster first and store it in a variable, so you don't have to do it in the unit group loop.
 
Level 13
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Alternatively, you could do something like setting the level of Forked Lightning to a factor of the related stat.
Of course, there's limits to this if you have heroes with obscene amounts of stats.

For Example:
In my map, the maximum intelligence a hero can have is 90.
I chose to increase the damage of any spell with every 5 points of a stat. In other words: the maximum ability level for Forked Lightning is 18.
- (side note: I don't recommend going over 20 levels for any ability... it causes epic object data lag and greatly increased map loading times)
Finally, I made a trigger that changes the level of Forked Lightning whenever the hero levels up or picks up an item with +stats.
 
Level 2
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Aug 29, 2015
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hahaha :grin:

  • Cone
    • Events
      • Unit - A unit Starts the effect of an ability
    • Conditions
      • (Ability being cast) Equal to Forked Lightning Mage
    • Actions
      • Set UnitGroup_FL_Targets[Integer_FL_Index] = (Units within 600.00 of Point_FL_Caster[Integer_FL_Index] matching ((((Angle from Point_FL_Caster[Integer_FL_Index] to Point_FL_Target[Integer_FL_Index]) Greater than or equal to 45.00) and ((Angle from Point_FL_Caster[Integer_FL_Index] to Point_FL_Target[Integer_FL_Index]) Less than or equal to 135.00))


EDIT:
is this possible?
 
Level 12
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Mar 24, 2011
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hahaha :grin:

  • Cone
    • Events
      • Unit - A unit Starts the effect of an ability
    • Conditions
      • (Ability being cast) Equal to Forked Lightning Mage
    • Actions
      • Set UnitGroup_FL_Targets[Integer_FL_Index] = (Units within 600.00 of Point_FL_Caster[Integer_FL_Index] matching ((((Angle from Point_FL_Caster[Integer_FL_Index] to Point_FL_Target[Integer_FL_Index]) Greater than or equal to 45.00) and ((Angle from Point_FL_Caster[Integer_FL_Index] to Point_FL_Target[Integer_FL_Index]) Less than or equal to 135.00))


EDIT:
is this possible?

No.

  • Events
    • Unit - A unit Starts the effect of an ability
  • Conditions
    • (Ability being cast) Equal to Forked Lightning Mage
  • Actions
    • Set ConeAngle = 30.00
    • Set CastingUnit = (Triggering unit)
    • Set CasterPoint = Position of CastingUnit
    • Set TargetPoint = Position of (Target unit of Ability being cast)
    • Set TargetsUnitGroup = Units within 600 range of CasterPont
    • Set SpellAngle = Angle between (CasterPoint) and (TargetPoint)
    • Custom script: call RemoveLocation(udg_TargetPoint)
    • Unit Group - Pick all units in (TargetUnitGroup) and do actions
      • Loop - Actions
        • Set TempUnit = (Picked unit)
        • Set TempPoint = Position of TempUnit
        • If - Then - Else (Multiple actions)
          • If - Conditions
            • Boolean comparison - (Owner of CastingUnit) is an enemy of (Owner of TempUnit) equals to true
            • Real comparison - If angle between CastterPoint and TempPoint Greater than or equal to (SpellAngle - ConeAngle)
            • Real comparison - If angle between CastterPoint and TempPoint Less than or equal to (SpellAngle + ConeAngle)
          • Then - Actions
            • >>>>>>> Insert Spell Effects here <<<<<<<<
          • Else - Actions
        • Custom script: call RemoveLocation(udg_TempPoint)
    • Custom script: call RemoveLocation(udg_CasterPoint)
    • Custom script: call DestroyGroup(udg_TargetUnitGroup)
You are looking at something like this.
You may have to add a full circle to all angles to avoid any quadrant errors.
Also, I am not entirely sure if some of those functions work in Radians instead of Degree.

 
I would import for example [vJASS] - [Snippet] Field of View (IsUnitInSight + IsUnitBehind), and then:
  • Set Caster = <Yout Unit>
  • Set AngleTollerance = 60.00
  • Set Group = UnitGroup - PickAllUnits In Range of 600 of Caster
  • Unit Group - Pick All Units in Group
    • Set Target = (Picked Unit)
    • Custom script: set udg_IsUnitInCone = IsUnitInSightOfUnit(udg_Caster, udg_Target, udg_AngleTollerance)
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • (IsUnitInCone Equals TRUE)
      • Then - Actions
        • ---- Unit is in cone
      • Else - Actions
        • ---- Unit is not in cone
Required variables
  • Caster [unit]
  • Target [unit]
  • Group [unit group]
  • AngleTollerance [real]
  • IsUnutInCone [boolean]
 
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