[Trigger] Adding random non-duplicate abilities

[Sheepmancer]

So i have been looking around but couldn't find a way to solve this problem so i thought that i might as well give it a try here.

I'm trying to create a trigger that will give a unit a random ability from a list of about 10 with an equal chance for each. (I use GUI)

The problem is that i don't want to have duplicate abilities.

I think this may be doable with some sort of loop but don't quite know how.

 

[Warseeker]

You can store all those 10 abilities inside an array then create a random integer that gives an ability depending on the chance rate.

• Init Abilities ID
  • Events
    • Map initialization
  • Conditions
  • Actions
    • Set AbilityID[1] = Bash
    • Set AbilityID[2] = Blizzard
    • Set AbilityID[3] = Firebolt
    • Set AbilityID[4] = War Stomp
    • Set AbilityID[5] = Divine Shield
    • Set AbilityID[6] = Thunder Clap
    • Set AbilityID[7] = Rain of Fire
    • Set AbilityID[8] = Roar
    • Set AbilityID[9] = Bloodlust
    • Set AbilityID[10] = Frost Armor

• Give Random Ability
  • Events
    • Player - Player 1 (Red) types a chat message containing test as An exact match
  • Conditions
  • Actions
    • Set RandomInteger = (Random integer number between 1 and 100)
    • Game - Display to (All players) the text: (String(RandomInteger))
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • RandomInteger Greater than or Equal to 0
        • RandomInteger Lesser than or Equal to 10
      • Then - Actions
        • Unit - Add AbilityID[1] to Paladin 0000 <gen>
      • Else - Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • RandomInteger Greater than or Equal to 11
        • RandomInteger Lesser than or Equal to 20
      • Then - Actions
        • Unit - Add AbilityID[2] to Paladin 0000 <gen>
      • Else - Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • RandomInteger Greater than or Equal to 21
        • RandomInteger Lesser than or Equal to 30
      • Then - Actions
        • Unit - Add AbilityID[3] to Paladin 0000 <gen>
      • Else - Actions

 

[Rahko]

• Give Random Ability
  • Events
    • Player - Player 1 (Red) types a chat message containing test as An exact match
  • Conditions
  • Actions
    • Set RandomInteger = (Random integer number between 1 and 100)
    • Game - Display to (All players) the text: (String(RandomInteger))
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • RandomInteger Greater than or Equal to 0
        • RandomInteger Lesser than or Equal to 10
      • Then - Actions
        • Unit - Add AbilityID[1] to Paladin 0000 <gen>
      • Else - Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • RandomInteger Greater than or Equal to 11
        • RandomInteger Lesser than or Equal to 20
      • Then - Actions
        • Unit - Add AbilityID[2] to Paladin 0000 <gen>
      • Else - Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • RandomInteger Greater than or Equal to 21
        • RandomInteger Lesser than or Equal to 30
      • Then - Actions
        • Unit - Add AbilityID[3] to Paladin 0000 <gen>
      • Else - Actions

But if that is run more than once, it can give the same spell again.

I had a similar situation where I wanted to give random abilities, but didn't want them to have same abilities twice, so I did this:

• Actions
  • -------- First Ability --------
  • Set TempInteger[0] = (Random integer number between 1 and HeroAbilities1Count)
  • Unit - Add HeroAbilitiesQ1[TempInteger[0]] to BuildingAbiShop[LoopInteger_HeroChoose]
  • -------- Second Ability --------
  • Custom script: loop
  • Set TempInteger[1] = (Random integer number between 1 and HeroAbilities1Count)
  • Custom script: exitwhen udg_TempInteger[1] != udg_TempInteger[0]
  • Custom script: endloop
  • Unit - Add HeroAbilitiesW1[TempInteger[1]] to BuildingAbiShop[LoopInteger_HeroChoose]
  • -------- Third Ability --------
  • Custom script: loop
  • Set TempInteger[2] = (Random integer number between 1 and HeroAbilities1Count)
  • Custom script: exitwhen udg_TempInteger[2] != udg_TempInteger[0] and udg_TempInteger[2] != udg_TempInteger[1]
  • Custom script: endloop
  • Unit - Add HeroAbilitiesE1[TempInteger[2]] to BuildingAbiShop[LoopInteger_HeroChoose]
  • -------- Fourth Ability --------
  • Custom script: loop
  • Set TempInteger[3] = (Random integer number between 1 and HeroAbilities1Count)
  • Custom script: exitwhen udg_TempInteger[3] != udg_TempInteger[0] and udg_TempInteger[3] != udg_TempInteger[1] and udg_TempInteger[3] != udg_TempInteger[2]
  • Custom script: endloop
  • Unit - Add HeroAbilitiesR1[TempInteger[3]] to BuildingAbiShop[LoopInteger_HeroChoose]

There is no while-loop in GUI, so I made custom scripts. And instead of traditional exitwhen x > y I made a while-loop checking when the previous abilities were not equal (!=) to the abilities I have already randomly given.

 

[Pyrogasm]

Sabe’s solution is the simplest though it can be done entirely in GUI as below:

• For each Integer LoopInt from 1 to 1 do (actions)
  • Loop - Actions
    • Set Abil1 = Random Integer from 1 to 10
    • Set Abil2 = Random Integer from 1 to 10
    • Set Abil3 = Random integer from 1 to 10
    • If (All conditions are true) then do (Then actions) else do (Else actions)
      • If - Conditions
        • Abil1 not equal to Abil2
        • Abil2 not equal to Abil3
        • Abil3 not equal to Abil1
      • Then - Actions
        • <Add abilities here>
      • Else - Actions
        • Set LoopInt = LoopInt-1

Yes it may take a few loops to randomize three nonequal integers but that should be trivial to the game engine. In general the solution involves cloning the data you want to randomize into a new array then:

• Randomize an option R between 1 and MAX
• Store R somewhere
• Move the MAX’th index into the R’th index
• Reduce MAX by 1
• Repeat

 

[Elprede]

• Setup Abilities
  • Events
    • Map initialization
  • Conditions
  • Actions
    • Set MaxNumberOfAbilities = (MaxNumberOfAbilities + 1)
    • Set abilities[MaxNumberOfAbilities] = Acid Bomb
    • -------- --------
    • Set MaxNumberOfAbilities = (MaxNumberOfAbilities + 1)
    • Set abilities[MaxNumberOfAbilities] = Animate Dead
    • -------- --------
    • Set MaxNumberOfAbilities = (MaxNumberOfAbilities + 1)
    • Set abilities[MaxNumberOfAbilities] = Banish
    • -------- --------

• Get Random Ability
  • Events
  • Conditions
  • Actions
    • Set RandomInteger = (Random integer number between 1 and MaxNumberOfAbilities)
    • Unit - Add abilities[RandomInteger] to WhateverUnit
    • Set abilities[RandomInteger] = abilities[MaxNumberOfAbilities]
    • Set MaxNumberOfAbilities = (MaxNumberOfAbilities - 1)

FYI, there are several threads about randomizing without repeats. You just got to search for it.
Random non-repeating variable
Picking random variable in an array once only
Random - No Repeat (Maker's Post #18)