org.bukkit.Material#PISTON_MOVING_PIECE源码实例Demo

@EventHandler(ignoreCancelled = true)
public void protect36(final PlayerInteractEvent event) {
  if (event.getClickedBlock() != null) {
    if (event.getClickedBlock().getType() == Material.PISTON_MOVING_PIECE) {
      event.setCancelled(true);
    }
  }
}
 

@EventHandler(ignoreCancelled = true)
public void protect36(final PlayerInteractEvent event) {
    if(event.getClickedBlock() != null) {
        if(event.getClickedBlock().getType() == Material.PISTON_MOVING_PIECE) {
            event.setCancelled(true);
        }
    }
}
 

@Override
protected void check(MoveEvent event) {
    Location locTo = event.getTo();
    Location locFrom = event.getFrom();
    Player p = event.getPlayer();
    HawkPlayer pp = event.getHawkPlayer();
    if(!locFrom.getWorld().equals(locTo.getWorld()))
        return;

    //this stops an NPE
    double distanceSquared = locFrom.distanceSquared(locTo);
    if (distanceSquared == 0)
        return;

    double horizDistanceSquared = Math.pow(locTo.getX() - locFrom.getX(), 2) + Math.pow(locTo.getZ() - locFrom.getZ(), 2);
    double vertDistance = Math.abs(locTo.getY() - locFrom.getY());

    Vector moveDirection = new Vector(locTo.getX() - locFrom.getX(), locTo.getY() - locFrom.getY(), locTo.getZ() - locFrom.getZ());

    AABB playerFrom = WrappedEntity.getWrappedEntity(p).getCollisionBox(locFrom.toVector());
    playerFrom.shrink(SIDE_EPSILON, 0, SIDE_EPSILON);
    playerFrom.getMin().setY(playerFrom.getMin().getY() + BOTTOM_EPSILON);
    playerFrom.getMax().setY(playerFrom.getMax().getY() - TOP_EPSILON);
    AABB playerTo = playerFrom.clone();
    playerTo.translate(moveDirection);

    Vector minBigBox = new Vector(Math.min(playerFrom.getMin().getX(), playerTo.getMin().getX()), Math.min(playerFrom.getMin().getY(), playerTo.getMin().getY()), Math.min(playerFrom.getMin().getZ(), playerTo.getMin().getZ()));
    Vector maxBigBox = new Vector(Math.max(playerFrom.getMax().getX(), playerTo.getMax().getX()), Math.max(playerFrom.getMax().getY(), playerTo.getMax().getY()), Math.max(playerFrom.getMax().getZ(), playerTo.getMax().getZ()));
    AABB bigBox = new AABB(minBigBox, maxBigBox);

    AABB selection = bigBox.clone();
    selection.getMin().setY(selection.getMin().getY() - 0.6); //we need to grab blocks below us too, such as fences

    Set<Location> ignored = pp.getIgnoredBlockCollisions();

    GameMode gm = p.getGameMode();
    if(gm == GameMode.SURVIVAL || gm == GameMode.ADVENTURE || gm == GameMode.CREATIVE) {
        for (int x = selection.getMin().getBlockX(); x <= selection.getMax().getBlockX(); x++) {
            for (int y = selection.getMin().getBlockY(); y <= selection.getMax().getBlockY(); y++) {
                for (int z = selection.getMin().getBlockZ(); z <= selection.getMax().getBlockZ(); z++) {

                    Location blockLoc = new Location(locTo.getWorld(), x, y, z);

                    //Skip block if it updated within player AABB (only if they move slowly)
                    if(ignored.contains(blockLoc) && horizDistanceSquared <= HORIZONTAL_DISTANCE_THRESHOLD && vertDistance <= VERTICAL_DISTANCE_THRESHOLD)
                        continue;

                    Block bukkitBlock = ServerUtils.getBlockAsync(blockLoc);

                    if (bukkitBlock == null)
                        continue;

                    WrappedBlock block = WrappedBlock.getWrappedBlock(bukkitBlock, pp.getClientVersion());
                    if (!block.isSolid())
                        continue;

                    if(bukkitBlock.getType() == Material.PISTON_MOVING_PIECE) {
                        continue;
                    }

                    if (bukkitBlock.getState().getData() instanceof Openable && horizDistanceSquared <= HORIZONTAL_DISTANCE_THRESHOLD && vertDistance <= VERTICAL_DISTANCE_THRESHOLD) {
                        continue;
                    }

                    for (AABB test : block.getCollisionBoxes()) {
                        //check if "test" box is even in "bigBox"
                        if (!test.isColliding(bigBox))
                            continue;

                        boolean xCollide = collides2d(test.getMin().getZ(), test.getMax().getZ(), test.getMin().getY(), test.getMax().getY(), playerFrom.getMin().getZ(), playerFrom.getMax().getZ(), playerFrom.getMin().getY(), playerFrom.getMax().getY(), moveDirection.getZ(), moveDirection.getY());
                        boolean yCollide = collides2d(test.getMin().getX(), test.getMax().getX(), test.getMin().getZ(), test.getMax().getZ(), playerFrom.getMin().getX(), playerFrom.getMax().getX(), playerFrom.getMin().getZ(), playerFrom.getMax().getZ(), moveDirection.getX(), moveDirection.getZ());
                        boolean zCollide = collides2d(test.getMin().getX(), test.getMax().getX(), test.getMin().getY(), test.getMax().getY(), playerFrom.getMin().getX(), playerFrom.getMax().getX(), playerFrom.getMin().getY(), playerFrom.getMax().getY(), moveDirection.getX(), moveDirection.getY());
                        if (xCollide && yCollide && zCollide) {
                            punish(pp, false, event, new Placeholder("block", bukkitBlock.getType()));
                            tryRubberband(event);
                            return;
                        }
                    }
                }
            }
        }
    }

    reward(pp);
}
 

/**
 * Returns true if the Piston in the event is sticky.
 *
 * @return stickiness of the piston
 */
public boolean isSticky() {
    return block.getType() == Material.PISTON_STICKY_BASE || block.getType() == Material.PISTON_MOVING_PIECE;
}