Java Reference
In-Depth Information
Location
objects are important—that's how you get and set the coordinates of
anything in Minecraft. Here's how we'll manipulate locations to fling the
creatures up in the air.
Use Minecraft Coordinates
A
Location
stores three coordinates: x, y, and z, as the following figure shows.
+high (255)
Y
Sea level (64)
-low(0)
-north
-west
X
Z
+south
+east
The x value goes west (negative) to east (positive), the z-coordinate goes north
(negative) to south (positive), and y goes down (negative) to up (positive), with
a y value of 0 being the bottom layer of bedrock and 64 being sea level. That
means that to make a player or other entity fly up in the air, you need to add
some to the y value.
We'll get each target's current y value from
loc
and save it as
y
. Next we'll
change the value in
loc
by adding 50. Here's the fun part: by calling
target.tele-
portTo(loc)
we tell the target to teleport itself to this new location.
Whew! That's a lot of stuff in a few lines of code. But give it a shot and compile
and install it using
build.sh
just like we've been doing:
$
cd Desktop
$
cd code/SkyCmd
$
./build.sh
Stop and restart your server, and try out the new command
/sky
for fun. Make
sure you are in survival mode instead of creative mode,
1
and wait for night
to fall and the creepers to come.…
1.
In the Minecraft game, you can do this by typing
/gamemodec
for creative or
/gamemode
s
for survival.
