[Trigger] Get exact mana cost of spell

[Vulcano]

Is there a way to get exact mana cost of spell?

This is what i tried but it isn't exact due to mana regen:

• Untitled Trigger 001
  • Events
    • Unit - A unit Begins casting an ability
  • Conditions
  • Actions
    • Set mana1 = (Mana of (Triggering unit))
    • Wait 0.50 seconds
    • Set mana2 = (Mana of (Triggering unit))
    • Game - Display to (All players) the text: (Manacost + (String((mana1 - mana2))))

(I was to lazy to make it mui in jass)

 

[Element of Water]

In that case, find the mana regen, and run it off a timer so you get the exact time.

 

[Pharaoh_]

Element's right, you can also do this:

• Trigger1
• Events
  • Unit - A unit begins casting an ability
• Conditions
• Actions
  • Set Mana[1] = (Mana of (Triggering unit))

• Trigger2
• Events
  • Unit - A unit starts the effect of an ability
• Conditions
• Actions
  • Set Mana[2] = (Mana of (Triggering unit))
  • Set Mana[3] = (Mana[1]-Mana[2]
  • Game - Display to (All Players) the Text: (String(Mana[3]))

It should work.

 

[Element of Water]

If you do it like that, Pharaoh_, then if the spell has a cast time longer than 0.00 there will be a small wait in which time some mana could have regenerated.

 

[Shyhalu]

Make a dummy unit, in the object editor set the dummy's mana regeneration to 0, then set the dummy's mana to the casters mana as the spell starts?.

 

[Element of Water]

No, that wouldn't take into account the mana regen. I'm afraid my way is the only way.

 

[Reaper2008]

Can you get a unit's mana regeneration by triggers?

 

[Element of Water]

Wait a sec and I'll make a function to get it...

EDIT: Done. It's usually accurate, and it's ALWAYS accurate first time it's called. It sets the real variable ManaRegen to the unit's mana regen. The only problem is that it's not entirely MUI. If it's called twice within 0.01 seconds it will bug.

globals
    real OldMana
    unit GetRegenUnit
endglobals

function GetUnitManaRegenCallback takes nothing returns nothing
    call DestroyTimer(GetExpiredTimer())
    set udg_ManaRegen = GetUnitState(GetRegenUnit, UNIT_STATE_MANA) * 100.00
    call SetUnitState(GetRegenUnit, UNIT_STATE_MANA, OldMana)
endfunction
    

function GetUnitManaRegen takes unit u returns nothing
    set OldMana = GetUnitState(u, UNIT_STATE_MANA)
    set GetRegenUnit = u
    call SetUnitState(u, UNIT_STATE_MANA, 0)
    call TimerStart(CreateTimer(), 0.01, false, function GetUnitManaRegenCallback)
endfunction

 

[Vulcano]

I tried to make a trigger that shows message of manacost but nothing happens, i think loop never end. I tried with debug messages at start of Trig_Check_mana_Actions and setCast and they show up in game. And its is also my first vJass i ever tried(and i must admit that i never read any vjass tutorial):

globals
    boolean hasCast = false
    real OldMana
    unit GetRegenUnit
    real ManaRegen
endglobals

function GetUnitManaRegenCallback takes nothing returns nothing
    call DestroyTimer(GetExpiredTimer())
    set ManaRegen = GetUnitState(GetRegenUnit, UNIT_STATE_MANA) * 100.00
    call SetUnitState(GetRegenUnit, UNIT_STATE_MANA, OldMana)
endfunction

function GetUnitManaRegen takes unit u returns nothing
    set OldMana = GetUnitState(u, UNIT_STATE_MANA)
    set GetRegenUnit = u
    call SetUnitState(u, UNIT_STATE_MANA, 0)
    call TimerStart(CreateTimer(), 0.01, false, function GetUnitManaRegenCallback)
endfunction

function Trig_Check_mana_Actions takes nothing returns nothing
    local real mana1 = GetUnitStateSwap(UNIT_STATE_MANA, GetTriggerUnit())
    local real mana2
    local unit caster = GetSpellAbilityUnit()
    local timer t = CreateTimer()
    local real regenTime
    call TimerStart(t, 5.00, false, null)
    loop
        exitwhen ( hasCast == true )
        call TriggerSleepAction(0.10)
    endloop
    set mana2 = GetUnitStateSwap(UNIT_STATE_MANA, GetTriggerUnit())
    call GetUnitManaRegen(caster)
    set regenTime = 5.00 - TimerGetRemaining(t)
    call DisplayTextToForce( GetPlayersAll(), ( "Manacost " + R2S((mana1 - mana2) + regenTime*ManaRegen) ) )
endfunction

function SetCast takes nothing returns nothing
    set hasCast = true
endfunction

//===========================================================================
function InitTrig_Check_mana takes nothing returns nothing
    local trigger gg_trg_Check_mana = CreateTrigger(  )
    call TriggerRegisterAnyUnitEventBJ( gg_trg_Check_mana, EVENT_PLAYER_UNIT_SPELL_CAST )
    call TriggerAddAction( gg_trg_Check_mana, function Trig_Check_mana_Actions )
    set gg_trg_Check_mana = null
endfunction

function InitTrig_Check_mana2 takes nothing returns nothing
    local trigger gg_trg_Check_mana2 = CreateTrigger(  )
    call TriggerRegisterAnyUnitEventBJ( gg_trg_Check_mana2, EVENT_PLAYER_UNIT_SPELL_EFFECT )
    call TriggerAddAction( gg_trg_Check_mana2, function SetCast )
    set gg_trg_Check_mana2 = null
endfunction

I wish there was a native like GetManaCostOfCastSpell()

 

[Element of Water]

Bah, it's barely vJass. The only vJass feature in this is globals blocks. I think your problem is that InitTrig_Check_mana2 never fires. It doesn't just fire on its own you know. Only InitTrig_+<Name of trigger> fires automatically. Put the actions in InitTrig_Check_mana2 inside InitTrig_Check_mana. Then it should work. Oh, and what's the timer about in your actions? You start it, then never use it.

 

[Vulcano]

Thx for help, now Setcast fires. The timer is to check the time between start ability and start effect (set regenTime = 5.00 - TimerGetRemaining(t)), don't now more efficient way to do it

 

[Element of Water]

Ah, I see. That's fine, I guess, if you don't know vJass... Well then, there's your solution.

 

[Vulcano]

Now it works for 75%, the time is not very accurate yet, it uses regen of spell cast before last spell and i gonna make it mui, this is what i have now (in case you are bored and have ideas on how to mui'fy it ).

@element - Will give you rep when i can again, already gave you rep before

globals
    boolean hasCast = false
    real OldMana
    unit GetRegenUnit
    real ManaRegen
endglobals

function isHero takes nothing returns boolean
    return IsUnitType(GetTriggerUnit(), UNIT_TYPE_HERO)
endfunction

function GetUnitManaRegenCallback takes nothing returns nothing
    call DestroyTimer(GetExpiredTimer())
    set ManaRegen = GetUnitState(GetRegenUnit, UNIT_STATE_MANA) * 100
    call SetUnitState(GetRegenUnit, UNIT_STATE_MANA, OldMana)
endfunction

function GetUnitManaRegen takes unit u returns nothing
    set OldMana = GetUnitState(u, UNIT_STATE_MANA)
    set GetRegenUnit = u
    call SetUnitState(u, UNIT_STATE_MANA, 0)
    call TimerStart(CreateTimer(), 0.01, false, function GetUnitManaRegenCallback)
endfunction

function Trig_Check_mana_Actions takes nothing returns nothing
    local real mana1 = GetUnitStateSwap(UNIT_STATE_MANA, GetTriggerUnit())
    local real mana2
    local unit caster = GetSpellAbilityUnit()
    local timer t = CreateTimer()
    local real regenTime
    call TimerStart(t, 1.00, false, null)
    loop
        exitwhen ( hasCast == true )
        call TriggerSleepAction(0.10)
    endloop    
    set hasCast = false
    set regenTime = 1.00 - TimerGetRemaining(t)
    call DestroyTimer(t)
    set mana2 = GetUnitStateSwap(UNIT_STATE_MANA, GetTriggerUnit())   
    call GetUnitManaRegen(caster)
    call DisplayTextToForce( GetPlayersAll(), ( "Mana1 " + R2S(mana1)) )
    call DisplayTextToForce( GetPlayersAll(), ( "Mana2 " + R2S(mana2)) )
    call DisplayTextToForce( GetPlayersAll(), ( "regen " + R2S(ManaRegen)) )
    call DisplayTextToForce( GetPlayersAll(), ( "Manacost " + R2S((mana1 - mana2) + regenTime*ManaRegen) ) )
endfunction

function SetCast takes nothing returns nothing
    set hasCast = true
endfunction

//==========================================================================
function InitTrig_Check_mana takes nothing returns nothing
    local trigger gg_trg_Check_mana = CreateTrigger(  )
    local trigger gg_trg_Check_mana2 = CreateTrigger(  )
    call TriggerRegisterAnyUnitEventBJ( gg_trg_Check_mana, EVENT_PLAYER_UNIT_SPELL_CAST )
    call TriggerAddCondition( gg_trg_Check_mana, Condition(function isHero ) )
    call TriggerAddAction( gg_trg_Check_mana, function Trig_Check_mana_Actions )
    set gg_trg_Check_mana = null    
    call TriggerRegisterAnyUnitEventBJ( gg_trg_Check_mana2, EVENT_PLAYER_UNIT_SPELL_EFFECT )
    call TriggerAddCondition( gg_trg_Check_mana2, Condition(function isHero ) )
    call TriggerAddAction( gg_trg_Check_mana2, function SetCast )
    set gg_trg_Check_mana2 = null
endfunction

 

[Element of Water]

Do you mind a vJass script? Cause I'm gonna give you a fully MUI vJass script to do just that. Starting on it now.

 

[Vulcano]

thx

 

[Element of Water]

It;s quite long and complicated so far, but i think you should be able to understand it... gotta go to school now anyway, so I'll finish it tonight.

EDIT: Ok, I think I've finished it but... it doesn't really get the exact mana cost of the spell - Flame Strike costs 130 mana, the system says 131.254... But I think what I've got is the best I can get.

EDIT2: I found the problem... I can't get heroes' mana regeneration correctly with the way I'm using without knowing how much bonus mana regen you get per intelligence point. I'll look it up in game constants.

EDIT3: Yey! I made the mana regen thing consider the hero's intelligence and now the system is accurate to 0.001 mana (130 mana returns 130.001). I'll just clean up the code and stuff then I'll post it.

EDIT4: Done. It's attached. To use it you must first register the spell with the system, by calling call GetSpellMana_RegisterSpell(SPELL_RAWCODE). The code will then print out the mana cost of the spell after it has been cast. If the unit which you expect to cast the spell does not exist when that function is called, the system will not work properly when that unit casts the spell unless you call call InitUnitManaRegen(UNIT_ID).

 

[Vulcano]

Ty very much , i'll rep you whenever i can