"RandomPercent" parameter

[tai4ji2x]

just a quick question, could someone explain how exactly the "RandomPercent" parameter works?

[Aradan]

I believe: the game uses a random-function to generate a number. Then it compares the number with the one you've given for the RandomPercent. If your number is equal or greater than the generated one, you get the effect you want.

[BozosLiveHere]

Actually, you provide the logic token yourself. That way, RandomPercent > 99 will return True with a 1% chance, same as RandomPercent < 2 or RandomPercent <= 1.

[Aradan]

Yes, I thought that goes without saying, my bad. Thx Bozos! :)

[tai4ji2x]

ok, i think i understand, but let me just check to be sure.

if a trait or ancillary trigger says:

...
Condition ...
    and RandomPercent <= 5
...
Affects GoodCommander  1  Chance 10

what exactly happens?

(... denotes clipped text)

similarly, if triggering an event in a script, such as this one in EB:

monitor_event FactionTurnStart FactionType scythia
...
and I_TurnNumber > 35
and I_TurnNumber < 210
and RandomPercent < 5
and I_LocalFaction scythia

console_command create_building Sulek hinterland_victory
...
end_monitor

what does the RandomPercent do here?

thanks in advance

[Aradan]

If the random number generated by the game is less than 5 (and all other conditions are met), you get the victory-building in Sulek.

[tai4ji2x]

thanks aradan :) so RandomPercent < 99 would mean 99 times out of 100, the condition returns "true"?

can you do...

and RandomPercent < 99
and RandomPercent > 50

?

or (assuming the system would even accept that) is that just a redundant way to do

and RandomPercent > 51

?

but what about traits/ancillaries? first there is a RandomPercent, and then the usual "Chance" #

does that mean that first it rolls dice for RandomPercent to see if it even will or will not execute yet another dice roll with the "Chance" parameter? which makes me wonder... why bother with two dice rolls?

[Aradan]

Basically it will be true 98 times out of 100, since 99 isn't less than 99... In order to have a 99% chance you must have

and RandomPercent <= 99

Assuming that in the case you used two RandomPercent checks the game only trows the dice once, I don't think your logic is correct. Because if the RandomPercent is 51, this

and RandomPercent < 99
and RandomPercent > 50

will be satisfied, while this

and RandomPercent > 51

will not. Or if the value is 100, then the double one won't be satisfied and the single one will.

And there is always the chance that if you put two RandomPercent lines, the game actually throws the dice two times, in which case the final probability of your thing happening is prob1 * prob2= final_prob, which will always be less than the min{prob1, prob2} (assuming that we can't have 100% probability.

Generally, I can see no reason to put two RandomPercent lines, even if the game accepts them. It seems redudant and rather complicated.

The usage of both 'chance' and 'RandomPercent' is probably possible in order to allow for probabilities with up to two decimals to be used, as the engine calculates probabilities only with integers... I guess it's a valuable tool for traiters to be able to have probs like 43.76%...

Perhaps one of the highly experienced EB traitors would be of more avail here.

[Dol Guldur]

I believe the term is traiters ;)

monitor_event ForumTurnStart FactionType palantir
...
and I_PostNumber > 1
and I_PostNumber < 2
and RandomPercent < 100
and LocalForumBrowser noobie
and ProblemNameExists Installation Error

console_command create_angryPost Palantir ReadTheInstructionsProperlyFor_victory
...
end_monitor

[tai4ji2x]

I believe the term is traiters ;)

hyuk hyuk hyuk

seriously though... anyone here know what the purpose is when it comes to trait/ancillaries?

[BozosLiveHere]

As Aradan wrote, using RandomPercent in traits/ancillaries allows you to have non-integer probabilities for triggers, as in this piece here:

;------------------------------------------
Trigger harsh_lifestyle1
    WhenToTest CharacterTurnEnd

    Condition EndedInSettlement
          and RemainingMPPercentage = 100
          and SettlementBuildingExists = governors_house
          and RandomPercent > 50

    Affects Austere  1  Chance  2
    Affects Pragmatic  1  Chance  2
    Affects Stoic  1  Chance  1

You can also use it to save some lines of code: suppose that you want to trigger a certain trait B whenever a character acquires another trait A. You could either write it like this:

Trigger acquire_A
    WhenToTest CharacterTurnEnd

    Condition IsGeneral
          and Trait A < 1
        

    Affects  A  1  Chance  20

;-----------------------------------
Trigger acquire_B
    WhenToTest CharacterTurnEnd
    
    Condition IsGeneral
          and Trait A = 1
          and Trait B < 1


    Affects  B  1  Chance  100

Or you can save some bytes writing it like this:

Trigger acquire_A_then_B
    WhenToTest CharacterTurnEnd

    Condition IsGeneral
          and Trait A < 1
          and RandomPercent > 80
        

    Affects  A  1  Chance  100
    Affects  B  1  Chance  100

[tai4ji2x]

As Aradan wrote, using RandomPercent in traits/ancillaries allows you to have non-integer probabilities for triggers, as in this piece here:

;------------------------------------------
Trigger harsh_lifestyle1
    WhenToTest CharacterTurnEnd

    Condition EndedInSettlement
          and RemainingMPPercentage = 100
          and SettlementBuildingExists = governors_house
          and RandomPercent > 50

    Affects Austere  1  Chance  2
    Affects Pragmatic  1  Chance  2
    Affects Stoic  1  Chance  1

ok, i think i understand the second part. and so following from the logic there, i'm assuming this means that in the above trigger, the possibility of adding one point of "stoic" is thus effectively 0.5% ?

thanks so much, bozoslivehere

[BozosLiveHere]

Yup.

[Quinn Inuit]

Sorry to resurrect an old thread, but it seemed better than starting a related new one. Can I use the RandomPercent parameter to spawn armies like this?

monitor_event FactionTurnStart FactionType scythia
    if RandomPercent < 3
    spawn_army
		faction scythia
		character Kudurmabug, general, age 30, , x XXX, y YYY
        unit		sarmatian noble cavalry				exp 0 armour 1 weapon_lvl 1
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian archer			exp 0 armour 0 weapon_lvl 0
        unit		sarmatian archer					exp 0 armour 0 weapon_lvl 0
    end
    end_if
    if RandomPercent > 99   
    spawn_army
		faction scythia
		character Kudurmabug, general, age 30, , x XXX, y YYY
        unit		sarmatian noble cavalry				exp 0 armour 1 weapon_lvl 1
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian archer			exp 0 armour 0 weapon_lvl 0
        unit		sarmatian archer					exp 0 armour 0 weapon_lvl 0
        unit		sarmatian noble cavalry				exp 0 armour 1 weapon_lvl 1
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian archer			exp 0 armour 0 weapon_lvl 0
        unit		sarmatian archer					exp 0 armour 0 weapon_lvl 0
    end
    end_if
end_monitor
    
monitor_event FactionTurnStart FactionType scythia
    while I_TurnNumber <= 399
    end_while
    if I_TurnNumber = 400
        console_command kill_character "Kudurmabug"
    spawn_army
		faction scythia
        character Kudurmabug, named character, command 0, influence 0, management 0, subterfuge 0, age 40, , x XXX, y YYY
        unit		barb chieftain cavalry scythian				exp 1 armour 1 weapon_lvl 1
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian archer			exp 0 armour 0 weapon_lvl 0
        unit		sarmatian noble cavalry				exp 0 armour 1 weapon_lvl 1
        unit		sarmatian archer					exp 0 armour 0 weapon_lvl 0
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian archer			exp 0 armour 0 weapon_lvl 0
        unit		sarmatian noble cavalry				exp 0 armour 1 weapon_lvl 1
        unit		sarmatian archer					exp 0 armour 0 weapon_lvl 0
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian archer			exp 0 armour 0 weapon_lvl 0
        unit		sarmatian noble cavalry				exp 0 armour 1 weapon_lvl 1
        unit		sarmatian archer					exp 0 armour 0 weapon_lvl 0
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian horse archer				exp 0 armour 0 weapon_lvl 0
        unit		sarmatian archer			exp 0 armour 0 weapon_lvl 0
        unit		sarmatian archer					exp 0 armour 0 weapon_lvl 0
    end
        console_command give_trait "Kurdurmabug" GoodCommander 3
    if I_TurnNumber >= 401
            terminate_monitor ; Loaded game.
    end_if
end_monitor