The SkyWars plugin has a concept of a player "score", which is added to when that player wins a game or kills someone in a game, and is subtracted from when that player is killed.
Score is stored either in a json file, or on an sql server, depending on your configuration.
You can configure how much someone's score changes from different events, and how store is saved in the main-config.yml's points section:
# Sub section for score storage
points:
# Whether to enable point storage or not. If point storage is not enabled,
# none of the following settings will take effect
enable-points: true
# The number of points to add to a player's score when they win a game.
win-point-diff: 7
# The number of points to add to a player's score when they die in a game.
death-point-diff: -2
# The number of points to add to a player's score when they kill someone in
# a game
kill-point-diff: 1
# Number of seconds between saving the score to hard disk
# In JSON storage, this is the number of seconds between saving the entire score
# file to the hard disk.
# In SQL storage, this is the number of seconds between saving only uncommitted data
# to the SQL server. In SQL, this is also the number of seconds between leaderboard
# top-10 updates (data shown on `/sw top`). Note that individual ranks (data shown
# on `/sw rank`) is updated on a different timer, according to the
# `individual-rank-update-interval` setting below.
max-save-interval: 300
# If true, use the SQL storage backend. If false, the JSON storage is used.
# Note: When using SQL backend, for most efficiency, set max-save-interval to 20
# SQL saving works differently than json saving, so max-save-interval values from
# 20-100 seconds work best.
use-sql: true
# SQL login info
sql:
# Host to connect to
host: 127.0.0.1
# Port to connect to
port: 3306
# Database to store on. Data is stored in a `skywars_user` table in this
# database.
database: minecraft
# Username to login as. Using `root` is not recommended. Instead you should
# set up a more restricted user.
username: root
# Password to login with.
password: aComplexPassword
# Time in seconds between updating the ranks of each individual. This is the
# rank shown in `/sw rank`, and this will update the ranks of everyone on
# the server at the given interval. However, updating each individual's rank is
# a more costly operation than updating the top 10 ranks, so it is done on a
# separate timer.
individual-rank-update-interval: 60
```
Note that whichever method you choose for score storage, may also be used to
store other persistent user data, such as what kit each player has selected.
### Showing Score
#### In Chat
If you add the text `{SKYWARS.USERSCORE}` to someone's prefix or to the chat format in your preferred chat plugin, SkyWars will replace that text with the person's score number.
If you add the text `{SKYWARS.USERRANK}`, SkyWars will similarly replace that text with the person's rank number.
#### Top-10 leaderboard
To view the top 10 players with the most score, the command `/sw top` can be used.
When using the SQL backend, the data this command shows is updated every 20 seconds. In the JSON backend, the data is updated immediately.
#### Individual rank
To view someone's individual rank, the `/sw rank <player>` can be used, or `/sw rank` to view one's own rank.
When using the SQL backend, the data this command shows is updated by default every 60 seconds. In the JSON backend, the data is updated immediately.