Java Reference
In-Depth Information
Figure 4—
playerTeleports
is a hash with
Player
keys and
Stack
values.
Now what do we mean by “or close to it”? Notice that we're using a helper
function named
equalsIsh
(declared at
❹
). It's checking two locations to see if
the x- and z-coordinates are within the same block. By casting the floating-
point values to integer (using the
(int)
keyword), we're throwing out the
fractional part of the coordinate. We're interested only if you're in the same
block, not at a slightly different position within the same block.
Try This Yourself
For this exercise, you're going to create a brand-new plugin that uses a listener.
Create a plugin named
FireBow
. If you fire an arrow, we want to make it explode
in a huge, crater-making explosion when it hits something. To do this, listen
for a
ProjectileHitHook
and call
world.makeExplosion
. Use a large value for the power,
like
100.0f
to make a really large crater. Don't forget to cancel the arrow event;
that way, there will be no arrow—only a boom.
Hint: You can get the arrow from the
ProjectileHitHook
event using
event.
getProjectile()
.
