Java Reference
In-Depth Information
@Column(columnName =
"y"
, dataType = DataType.DOUBLE)
public double
y;
@Column(columnName =
"z"
, dataType = DataType.DOUBLE)
public double
z;
public
AllPlayerLocations() {
super(
"all_player_locations"
);
}
public
DataAccess getInstance() {
return new
AllPlayerLocations();
}
}
Let's see how to use this code within a plugin.
Plugin: LocationSnapshot
Here's an example of using a
DataAccess
(in this case,
AllPlayerLocations
) in a new
plugin,
LocationSnapshot
. For this plugin, we'll provide two new commands:
•
/savelocations
•
/loadlocations
You might want to use this kind of feature as part of a competition, where
you can return all players back to their starting points at the end.
The
savelocations
command, as you'd expect, saves the current locations of all
online players to disk.
loadlocations
reads them back in and teleports everyone
back to those saved locations. We'll use Canary's
Database
functions with our
AllPlayerLocations DataAccess
object to save and load a hash of
Player
s and
Location
s.
There are two main pieces to this plugin:
saveLocations
and
loadLocations
. To keep
things clean and start forming better habits, we'll put the code for each in its
own function.
savelocations
The logic for
savelocations
will look like this:
private void
saveLocations() {
List
<Player> playerList = Canary.getServer().getPlayerList();
// For all players...
for
(Player player : playerList) {
// Save the raw coordinates, not the Location
AllPlayerLocations apl =
new
AllPlayerLocations();
apl.player_name = player.getDisplayName();
Location loc = player.getLocation();
