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Leaderboards
By SD_Ryoko
About Leaderboards
Leaderboards are a very simple score board for players to keep track of their kills or points. You don't need any tools
or other programs to make one. Leaderboards can only keep track of two columns; a name and a value. If you need more than
two columns, you need to create a multiboard. However, leaderboards are a lot more simple to create.
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Leader boards can only
keep track of two columns.The left side is the players'
label, and the right is the
player value.
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When laying out your leaderboard, remember that they accept the standard Warcraft
color codes and characters. You can use a color coding program to create a nice title, and space it out on different lines as shown. You
can also later modify the title and properties of the leaderboard contents. All you need to create a leaderboard is two triggers. One to
create the board, and one to keep score.
- Leaderboards can only keep track of a name, and a value.
- Leaderboards can use the common Warcraft color codes.
- Leaderboards can be assigned a variable, to show and hide them easily.
- A leaderboard cannot be created at map initialization.
- A leaderboard is a lot more simple than a multiboard.
Creating a Leaderboard
You cannot create the board at map initialization. This is a very common reason a leaderboard doesn't work. You can create the board
after doing various things at the start of the map, or you can just have it wait 5 seconds or so. Most of my maps do the map
initialization first, then call a separate trigger to create the board when done. Waiting a little also helps with laggers who
drop at the beginning of the game. In this example trigger, I am going to wait five seconds.My example is simple. Five
seconds into the game, pick all players and check that they are playing, and controlled by a user. Add each of these players
to the leaderboard. When it's done, show the leaderboard to all players.
Leaderboard
Events
Time - Elapsed game time is 5.00 seconds
Conditions
(None)
Actions
Leaderboard - Create a leaderboard for (All players) titled (Your Title Here)
Custom script: set bj_wantDestroyGroup=true
Player Group - Pick every player in (All players) and do (Actions)
Loop - Actions
If (All Conditions are True) then do (Then Actions) else do (Else Actions)
If - Conditions
((Picked player) controller) Equal to User
((Picked player) slot status) Equal to Is playing
Then - Actions
Leaderboard - Add (Picked player) to (Last created leaderboard)
with label (Name of (Picked player)) and value 0
Else - Actions
Do nothing
Leaderboard - Show (Last created leaderboard) (Must come last)
| Example trigger creating a leaderboard.
Tallying Score
A leaderboard can keep track of several different things. Maybe you want your board to keep track of kills. If your playing
capture the flag, you would want to keep track of flags stolen. Because the board works off integers, you can assign it
any integer values you like.
In my map, I want the leaderboard to keep track of kills. Of course, this is the most common use for a leaderboard. So I will
first need to create a variable to keep track of kills for each player. I will open the variable editor, and create a new integer
variable called Player_Kills. Then I will check the Array box to keep track of more than one value.
Adding a variable to keep score
Now we will need a trigger to tally score. Again, leaderboards work on values and integers. In my example, I need to keep track of kills.
Sometimes you might want to keep track of just HERO kills. Other times, like a tower defense, you would keep track of ALL kills.
You can also add conditions to limit what kinds of kills are legitimate.
You only want to update the board when the score changes. I am highly against updating the board at any other time.
You can see maps online where the players jump all around the leaderboard, because they are all zero. This is not only annoying,
its bad practice and it can cause lag.
My example trigger is really simple. The trigger will run every time a unit dies. First it will check that the killing unit belongs
to a player, and not a computer. Then It will add one point to the owner of the killing units score. Lastly, it will update the
leaderboard value for that player.
Trigger Tally Score
Events
Unit - A unit Dies
Conditions
((Killing unit) belongs to an ally of Player 1 (Red)) Equal to True
Actions
Set Player_Kills[(Player number of (Owner of (Killing unit)))] =
(Player_Kills[(Player number of (Owner of (Killing unit)))] + 1)
Leaderboard - Change the value for (Owner of (Killing unit)) in
(Last created leaderboard) to Player_Kills[(Player number of (Owner of (Killing unit)))]
Leaderboard - Sort (Last created leaderboard) by Value in Descending order
| Trigger to tally score.
Appendix of Trigger Functions
Leaderboard - Create
Creates the leaderboard. Also assigns a title and which players can see it.
Leaderboard - Destroy
Destroys a leaderboard. Once you destroy a board, you can no longer see it or manipulate it.
Leaderboard - Show/Hide
Shows and hides the leaderboard. Applies to all players that can see it. You can still manipulate the board when it is hidden.
Leaderboard - Change Title
Changes the title of the leaderboard. Remember, it can use common Warcraft color codes as well.
Leaderboard - Change Label Colors
Changes the color of a players label. By default, the label will be the game color of that player. So player number
1 is red, and player number 4 is purple.
Leaderboard - Change Value Colors
Changes the color of a players score. Again by default, this will correspond with the players game color.
Leaderboard - Change Style
Changes the leaderboard style. You can hide the title, labels, or player values, for all players.
Leaderboard - Add Player
Adds a player to the leaderboard.
Leaderboard - Remove Player
Removes a player from the leaderboard. This is handy when a player quits or is defeated.
Leaderboard - Change Player Label
Changes the label for a player. Usually, this is the name of the player. Some maps change the name to (Quit) when a player leaves.
Leaderboard - Change Player Label Color
Changes the color of a players label. This is also handy if someone leaves. Sometimes the player name will change gray.
Leaderboard - Change Player Value
Updates the value, or score, for a player.
Leaderboard - Change Player Value Color
Changes the color of a players score. Again by default, this will correspond with the players game color.
Leaderboard - Change Player Style
Changes the leaderboard style. You can hide the labels or player values, for a specific player.
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Designed by Arkheno
2005
Blizzard
Entertainment®
Blizzard Entertainment is a trademark or registered trademark of Blizzard
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