How to setup chances?

[aussj5link]

I have a few instances where I need the game to choose something based on a set up chance such as a few items that an drop from certain npcs. A chance for a dialog button click to do one thing or another, like an "intimidate" success or fail for instance. Any help is much appreciated!

 

[LordDz]

• dz is so sexy oh yees Im going to get the golden ring and will conquer the world
  • Events
    • Destructible - A destructible within (Initial camera bounds) dies
  • Conditions
  • Actions
    • Set tempInt = (Random integer number between 1 and 10)
    • -------- 10% chance to do something --------
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • tempInt Equal to 5
      • Then - Actions
        • Game - Display to (All players) the text: I WANT TO RULE THE ...
      • Else - Actions

 

[aussj5link]

Cool, thanks! Random Integer Variables, got it!

 

[Dr Super Good]

Although random integers are probably the fastest approach there are other ways. Specifically random integers do not map well with probability theory since they behave more like a dice (something to model) rather than using probabilities directly.

In mathematics probability is often represented as a real number in the range of 0 (impossible) to 1 (always). Various formula can be applied to combine or remove probabilities in various ways. As such what you can do is use a random real between 0 and 1 and test if it is less than or equal to the desired probability. This is particularly useful if your probability is computed from some formula using probability theory. The main disadvantage is that unlike real numbers which are continuous, the WC3 real type is based on float so is not continuous. As such it is possible for probability distribution to be slightly skewed and some probabilities being impossible to represent exactly.

 

[LordDz]

Oh and I read somewhere that running the map through the world editor usually gives the same value everytime, so run it through a custom game / campaign if you want to test it.

 

[aussj5link]

Although random integers are probably the fastest approach there are other ways. Specifically random integers do not map well with probability theory since they behave more like a dice (something to model) rather than using probabilities directly.

In mathematics probability is often represented as a real number in the range of 0 (impossible) to 1 (always). Various formula can be applied to combine or remove probabilities in various ways. As such what you can do is use a random real between 0 and 1 and test if it is less than or equal to the desired probability. This is particularly useful if your probability is computed from some formula using probability theory. The main disadvantage is that unlike real numbers which are continuous, the WC3 real type is based on float so is not continuous. As such it is possible for probability distribution to be slightly skewed and some probabilities being impossible to represent exactly.

Fortunately, I don't need exact chances. I just want low chances for good items, really low chances for great items, and higher chances for basic items. For the intimidate check, I'm just going to have that a 50/50 chance in the beginning of the game and have that chance change based off certain factors like level or stats.

 

[Vinz]

Oh and I read somewhere that running the map through the world editor usually gives the same value everytime, so run it through a custom game / campaign if you want to test it.

You mean test map? If so, yes. Like how the heroes have their random names the same.

 

[aussj5link]

I'm having a bit of trouble here. I think one of the triggers is wrong. I made it tell me what the number is during testing to make sure it's doing the right thing but even when the number is greater than 50 it still does the success trigger. The reason why I have the number between 1 and 100 is that I plan to change the variable later in game and I'd like to be able to make the chances better. Any help here?

• Tybalt Intimidate Check
  • Events
    • Dialog - A dialog button is clicked for TybaltResponseWindow2
  • Conditions
    • (Clicked dialog button) Equal to TybaltResponseButton2[2]
  • Actions
    • Set IntimidateCheck = (Random integer number between 1 and 100)
    • Game - Display to (All players) the text: (String(IntimidateCheck))
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • IntimidateCheck Equal to (Min(50, 100))
      • Then - Actions
        • Sound - Play Warning <gen>
        • Unit - Replace Captain Tybalt 0005 <gen> with a Captain Tybalt (Targetable) using The old unit's relative life and mana
        • Set TybaltHostile = (Last replaced unit)
        • Unit - Change ownership of TybaltHostile to Player 10 (Light Blue) and Retain color
        • Sound - Play FootmanYesAttack3 <gen> at 100.00% volume, attached to TybaltHostile
        • Unit - Replace Brom 0006 <gen> with a Brom (Targetable) using The old unit's relative life and mana
        • Set BromHostile = (Last replaced unit)
        • Unit - Change ownership of BromHostile to Player 10 (Light Blue) and Retain color
        • Set ApprenticesHostile = Apprentice Mage
        • Unit Group - Pick every unit in (Units owned by Neutral Passive of type ApprenticesHostile) and do (Actions)
          • Loop - Actions
            • Unit - Replace (Picked unit) with a Apprentice Mage (Targetable) using The old unit's relative life and mana
            • Set ApprenticesHostile = (Unit-type of (Last replaced unit))
            • Unit - Change ownership of (Picked unit) to Player 10 (Light Blue) and Retain color
      • Else - Actions
        • Sound - Play GoodJob <gen>
        • Game - Display to Player Group - Player 1 (Red) the text: |cff7777aaCapt Tyba...
        • Wait 6.50 seconds
        • Unit - Order Captain Tybalt 0005 <gen> to Move To (Center of ByTheCrates <gen>)
        • Wait 6.00 seconds
        • Unit - Order Captain Tybalt 0005 <gen> to Move To (Center of ByTheFire <gen>)
        • Wait 3.00 seconds
        • Item - Create Tybalts Rations at (Center of ByTheFire <gen>)
        • Item - Create Ring of Gypsies at (Center of ByTheFire <gen>)
        • Unit - Make Captain Tybalt 0005 <gen> face Sorceress over 0.80 seconds
        • Unit - Make Captain Tybalt 0005 <gen> face Wizard over 0.80 seconds

 

[Vinz]

Why do you Min(50, 100); if I recall correctly that gets the minimum of the two? Why not just check if <var> less than or equal to 50?

 

[aussj5link]

Why do you Min(50, 100); if I recall correctly that gets the minimum of the two? Why not just check if <var> less than or equal to 50?

Oh, I guess I read that wrong. Thought it mean in between those 2 numbers lol

 

[aussj5link]

How would I make it so it looks for a number between 2 numbers without using a different integer variable? What I mean is, it will generate a random integer between 1-100, if the number is between 1 - 40 then it does one thing, but if its between 41 - 70 it does something different, if it's between 71 - 80 then it does another, 81-85, and finally if it's between 86 - 100 then nothing happens.

 

[Tickles]

• Events
• Conditions
• Actions
  • Set TempInteger = (Random integer number between 1 and 100)
  • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
    • If - Conditions
      • TempInteger Less than or equal to 40
    • Then - Actions
      • -------- Action 1 --------
    • Else - Actions
  • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
    • If - Conditions
      • TempInteger Greater than 40
      • TempInteger Less than or equal to 70
    • Then - Actions
      • -------- Action 2 --------
    • Else - Actions
  • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
    • If - Conditions
      • TempInteger Greater than 70
      • TempInteger Less than or equal to 80
    • Then - Actions
      • -------- Action 3 --------
    • Else - Actions
  • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
    • If - Conditions
      • TempInteger Greater than 80
      • TempInteger Less than or equal to 85
    • Then - Actions
      • -------- Action 4 --------
    • Else - Actions
  • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
    • If - Conditions
      • TempInteger Greater than 85
    • Then - Actions
      • -------- Action 5 --------
    • Else - Actions

Note that all of the Less Than have Less Than or Equal To.

 

[aussj5link]

^ Yes! Thank you!

 

[Dr Super Good]

Oh and I read somewhere that running the map through the world editor usually gives the same value everytime, so run it through a custom game / campaign if you want to test it.

Unless you disable fixed seed of course. Then it is random enough each time.