Pick Units In Half Circle

[Aeroblyctos]

Hey there.

I have little problem I don't know how to solve it. I have a minor boss, who will throw some stones(Hurl Boulder ability) to player's units that are in his front. I know how to pick all units around a unit, but I don't know how to pick units that are in boss' front. I have attached a picture if you didn't get what's my problem.

Orange = The Boss
Red = The half circle where the dummy units should throw the stones(Hurl Boulders).
Green = Where the boss currently looks.

I have also attached the map where this problem is. Could someone help me and do this type of trigger? I will give you some rep + credits.

 

[Anachron]

I guess its something like this.

Can't test right now.

library HalfEnumGroup

    private function interface enumInterface takes unit u returns boolean
    
    globals
        private real enumFacing = 0.
        private enumInterface enumFilter = null
    endglobals
    
    private function getCorrectFacing takes real f returns real
        loop
            exitwhen f > 0 and f < 360
            
            if f < 0 then
                set f = f +360
            elseif f > 360
                set f = f -360
            endif
        endloop
        
        return f
    endmethod
    
    private function halfEnumFilter takes nothing returns boolean
        local unit u = GetEnumUnit()
        local real f = getCorrectFacing(GetUnitFacing(u))
        
        return (f <= enumFacing +90 or f >= enumFacing -90) and enumFilter.evaluate(u)
    endfunction
    
    function enumUnitsInHalfRange takes group whichGroup, real x, real y, real r, real f, enumInterface filter returns nothing
        local integer i = 0
        local unit u = 0
        local boolexpr b = Condition(function halfEnumFilter)
        
        set enumFacing = getCorrectFacing(f)
        set enumFilter = filter
        call GroupEnumUnitsInRange(whichGroup, x, y, r, b)
        
        set b = null
    endfunction
endlibrary

scope Test initializer init
    private function enumTest takes unit u returns boolean
        return true
    endfunction

    private function init takes nothing returns nothing
        local group g = CreateGroup()
        call enumUnitsInHalfRange(g, 0., 0., 256., 90, enumTest)
    endfunction
endscope

 

[Maker]

Here's the thing in GUI:

• DW
  • Events
    • Unit - A unit Starts the effect of an ability
  • Conditions
    • (Ability being cast) Equal to ...
  • Actions
    • Set Temp_Unit_1 = (Triggering unit)
    • Set Temp_Loc_1 = (Position of Temp_Unit_1)
    • Set Temp_Real_1 = (Facing of Temp_Unit_1)
    • Set Temp_Real_2 = 800.00
    • ...
    • Set Temp_Group = (Units within Temp_Real_2 of Temp_Loc_1 matching ((Owner of (Matching unit)) Not equal to (Owner of (Temp_Unit_1)...)))
    • Unit Group - Pick every unit in Temp_Group and do (Actions)
      • Loop - Actions
        • Set Temp_Loc_2 = (Position of (Picked unit))
        • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
          • If - Conditions
            • (Cos((Temp_Real_1 - (Angle from Temp_Loc_1 to Temp_Loc_2)))) Greater than (Cos(90.00))
          • Then - Actions
            • *Unit is in front of the caster*

 

[Aeroblyctos]

Okay, I would like it in GUI format because I use GUI everywhere in my project & I don't understand much about JASS. Hey, can you Maker quickly add that trigger to the map and I'll test how it works?

Thanks to both of you!

 

[Maker]

The first map is there so you can test it. Run around the Paladin with the Blood Mage to check whether the Blood Mage is infront or behind the Paladin.

 

[Aeroblyctos]

Test map works, but the "Possu Event" map doesn't work properly. It lags when he throws and I guess it throws to few units many stones(should be one stone / unit). Also in the project player won't have that many unit, instead something like 1-5 units max. so you can reduce the amount of p1 units if necessary.

Can you fix this problem, please?

 

[Maker]

I made some changes to the dummy unit also.

 

[Anachron]

Hmmm,... You should really change to vJass.

 

[Aeroblyctos]

Okay, great. It works perfectly.

But what is this ability?

• Custom script: call UnitAddAbility(GetLastCreatedUnit(), 'Aloc')

 

[Anachron]

Aloc = A locust = Makes your unit unselectable.

 

[Aeroblyctos]

I wonder why Maker made a trigger where he adds that trigger to the dummy units? I always just put it in object editor. What's the difference?

 

[Anachron]

Nothing.

 

[Aeroblyctos]

Okay, fine.

The triggers works now and the spell is complete. Thanks to Anachron and especially to Maker who made the trigger. I'll add you to the credits once again.

 

[Anachron]

You don't have to, I am glad to help.

 

[Maker]

Eipä kestä. Toivottavasti saat kampanjas valmiiksi joskus

 

[Aeroblyctos]

Oh well, what the heck. I didn't knew you were also from Finland. Anyways... Kiitos ja yritän parhaani et saan tän valmiiks! Saatana ku on tätä armeijaa tässä ny. :<

 

[Anachron]

Speaking non-English in forums is forbidden. I Highly recommend to speak in English only, if you do not want to get negative rep, or even more.