Editor Bad Math

[Luciano Alencar Boi]

Ok, I'm doing the most basic hero ability. Increase attack range.
Here's my trigger, supper basic.

• Unit - A unit Learns a skill
• (Learned Hero Skill) Equal to Reinforced Crossbow
• Unit - Set Unit: (Learning Hero)'s Weapon Real Field: Attack Range ('ua1m')at Index:1 to Value: (500.00 + (200.00 x (Real((Level of Reinforced Crossbow for (Learning Hero))))))

However, in game, it doesn't return the values 700 for lvl 1, 900 for lvl 2 and 1100 for level 3. Instead it's giving me 700 / 1100 / 1700. I don't understand, is something wrong with my math? 500+(200*(level))

Why is it behaving like level 2 is level 3 and level 3 is level 6?

 

[PurgeandFire]

Your math is correct. It is actually just a bug with that function when assigning an attack range for a unit where it will "add" the range minus the difference between the ranges at weapon indexes 1 and 2. Here is a thread that explains the quirks a bit:

[Snippet] Set unit range partial fix & Set unit AoE Small fix

Hello there, the native BlzSetUnitWeaponRealField (and BJ too) is bugged for setting the range (UNIT_WEAPON_RF_ATTACK_RANGE). ☼ Doesn't work for the weapon index 2 ☼ For weapon index 1, will add the new range minus the difference between the base value of weapon 1 and 2 Also some getter/setter...

www.hiveworkshop.com

To fix this, you need to sorta reverse the calculation. That's where this handy function comes into play:

function SetUnitAttackRange takes unit u, real newRange returns nothing
    local real attackRange0 = BlzGetUnitWeaponRealField(u, UNIT_WEAPON_RF_ATTACK_RANGE, 0)
    local real attackRange1 = BlzGetUnitWeaponRealField(u, UNIT_WEAPON_RF_ATTACK_RANGE, 1)
    call BlzSetUnitWeaponRealFieldBJ(u, UNIT_WEAPON_RF_ATTACK_RANGE, 1, newRange - attackRange0 + attackRange1)
endfunction

You can copy and paste that script into your map header, which is accessible by selecting the map's name in the trigger editor:

Then in your trigger, you can use it like in the trigger below. I recommend using a variable (e.g. RC_Range) so that you can easily write the range in GUI and just reference that variable in the custom script:

• Reinforced Crossbow Learn
  • Events
    • Unit - A unit Learns a skill
  • Conditions
    • (Learned Hero Skill) Equal to Reinforced Crossbow
  • Actions
    • Set VariableSet RC_Range = (500.00 + (200.00 x (Real((Level of Reinforced Crossbow for (Triggering unit))))))
    • Custom script: call SetUnitAttackRange(GetTriggerUnit(), udg_RC_Range)

 

[Luciano Alencar Boi]

Thank you very much.