Java Code Examples for org.bukkit.entity.Player#isOnGround()

/**
 * Get the cause of the player's imminent death, or null if they are not about to die NOTE: not
 * idempotent, has the side effect of clearing the recentDamage cache
 */
public @Nullable ImminentDeath getImminentDeath(Player player) {
  // If the player is already dead or in creative mode, we don't care
  if (player.isDead() || player.getGameMode() == GameMode.CREATIVE) return null;

  // If the player was on the ground, or is flying, or is able to fly, they are fine
  if (!(player.isOnGround() || player.isFlying() || player.getAllowFlight())) {
    // If the player is falling, detect an imminent falling death
    double fallDistance = player.getFallDistance();
    Block landingBlock = null;
    int waterDepth = 0;
    Location location = player.getLocation();

    if (location.getY() > 256) {
      // If player is above Y 256, assume they fell at least to there
      fallDistance += location.getY() - 256;
      location.setY(256);
    }

    // Search the blocks directly beneath the player until we find what they would have landed on
    Block block = null;
    for (; location.getY() >= 0; location.add(0, -1, 0)) {
      block = location.getBlock();
      if (block != null) {
        landingBlock = block;

        if (Materials.isWater(landingBlock.getType())) {
          // If the player falls through water, reset fall distance and inc the water depth
          fallDistance = -1;
          waterDepth += 1;

          // Break if they have fallen through enough water to stop falling
          if (waterDepth >= BREAK_FALL_WATER_DEPTH) break;
        } else {
          // If the block is not water, reset the water depth
          waterDepth = 0;

          if (Materials.isSolid(landingBlock.getType())
              || Materials.isLava(landingBlock.getType())) {
            // Break if the player hits a solid block or lava
            break;
          } else if (landingBlock.getType() == Material.WEB) {
            // If they hit web, reset their fall distance, but assume they keep falling
            fallDistance = -1;
          }
        }
      }

      fallDistance += 1;
    }

    double resistanceFactor = getResistanceFactor(player);
    boolean fireResistance = hasFireResistance(player);

    // Now decide if the landing would have killed them
    if (location.getBlockY() < 0) {
      // The player would have fallen into the void
      return new ImminentDeath(EntityDamageEvent.DamageCause.VOID, location, null, false);
    } else if (landingBlock != null) {
      if (Materials.isSolid(landingBlock.getType())
          && player.getHealth() <= resistanceFactor * (fallDistance - SAFE_FALL_DISTANCE)) {
        // The player would have landed on a solid block and taken enough fall damage to kill them
        return new ImminentDeath(
            EntityDamageEvent.DamageCause.FALL,
            landingBlock.getLocation().add(0, 0.5, 0),
            null,
            false);
      } else if (Materials.isLava(landingBlock.getType())
          && resistanceFactor > 0
          && !fireResistance) {
        // The player would have landed in lava, and we give the lava the benefit of the doubt
        return new ImminentDeath(
            EntityDamageEvent.DamageCause.LAVA, landingBlock.getLocation(), landingBlock, false);
      }
    }
  }

  // If we didn't predict a falling death, detect combat log due to recent damage
  Damage damage = this.recentDamage.remove(player);
  if (damage != null && damage.time.plus(RECENT_DAMAGE_THRESHOLD).isAfter(Instant.now())) {
    // Player logged out too soon after taking damage
    return new ImminentDeath(damage.event.getCause(), player.getLocation(), null, true);
  }

  return null;
}
 

/**
 * Get the cause of the player's imminent death, or null if they are not about to die
 * NOTE: not idempotent, has the side effect of clearing the recentDamage cache
 */
public @Nullable ImminentDeath getImminentDeath(Player player) {
    // If the player is already dead or in creative mode, we don't care
    if(player.isDead() || player.getGameMode() == GameMode.CREATIVE) return null;

    // If the player was on the ground, or is flying, or is able to fly, they are fine
    if(!(player.isOnGround() || player.isFlying() || player.getAllowFlight())) {
        // If the player is falling, detect an imminent falling death
        double fallDistance = player.getFallDistance();
        Block landingBlock = null;
        int waterDepth = 0;
        Location location = player.getLocation();

        if(location.getY() > 256) {
            // If player is above Y 256, assume they fell at least to there
            fallDistance += location.getY() - 256;
            location.setY(256);
        }

        // Search the blocks directly beneath the player until we find what they would have landed on
        Block block = null;
        for(; location.getY() >= 0; location.add(0, -1, 0)) {
            block = location.getBlock();
            if(block != null) {
                landingBlock = block;

                if(Materials.isWater(landingBlock.getType())) {
                    // If the player falls through water, reset fall distance and inc the water depth
                    fallDistance = -1;
                    waterDepth += 1;

                    // Break if they have fallen through enough water to stop falling
                    if(waterDepth >= BREAK_FALL_WATER_DEPTH) break;
                } else {
                    // If the block is not water, reset the water depth
                    waterDepth = 0;

                    if(Materials.isColliding(landingBlock.getType()) || Materials.isLava(landingBlock.getType())) {
                        // Break if the player hits a solid block or lava
                        break;
                    } else if(landingBlock.getType() == Material.WEB) {
                        // If they hit web, reset their fall distance, but assume they keep falling
                        fallDistance = -1;
                    }
                }
            }

            fallDistance += 1;
        }

        double resistanceFactor = getResistanceFactor(player);
        boolean fireResistance = hasFireResistance(player);

        // Now decide if the landing would have killed them
        if(location.getBlockY() < 0) {
            // The player would have fallen into the void
            return new ImminentDeath(EntityDamageEvent.DamageCause.VOID, location, null, false);
        } else if(landingBlock != null) {
            if(Materials.isColliding(landingBlock.getType()) && player.getHealth() <= resistanceFactor * (fallDistance - SAFE_FALL_DISTANCE)) {
                // The player would have landed on a solid block and taken enough fall damage to kill them
                return new ImminentDeath(EntityDamageEvent.DamageCause.FALL, landingBlock.getLocation().add(0, 0.5, 0), null, false);
            } else if (Materials.isLava(landingBlock.getType()) && resistanceFactor > 0 && !fireResistance) {
                // The player would have landed in lava, and we give the lava the benefit of the doubt
                return new ImminentDeath(EntityDamageEvent.DamageCause.LAVA, landingBlock.getLocation(), landingBlock, false);
            }
        }
    }

    // If we didn't predict a falling death, detect combat log due to recent damage
    Damage damage = this.recentDamage.remove(player);
    if(damage != null && damage.time.plus(RECENT_DAMAGE_THRESHOLD).isAfter(Instant.now())) {
        // Player logged out too soon after taking damage
        return new ImminentDeath(damage.event.getCause(), player.getLocation(), null, true);
    }

    return null;
}
 

@EventHandler(priority = EventPriority.HIGHEST)
public void onClickBlock(PlayerInteractEvent event) {
    if (event.getAction() == Action.RIGHT_CLICK_BLOCK && event.hasBlock() && !event.hasItem()) {
        Block block = event.getClickedBlock();
        BlockFace face = event.getBlockFace();
        if (face == BlockFace.DOWN || block.isLiquid() || !plugin.cfg.sit_blocks.contains(block.getType())) {
            return;
        }
        Block relative = block.getRelative(0, 1, 0);
        Player player = event.getPlayer();
        if (messageCooldown.getIfPresent(player.getUniqueId()) != null) {
            return;
        }
        messageCooldown.put(player.getUniqueId(), true);
        if (!player.hasPermission("nu.sit") || !enabledPlayers.contains(player.getUniqueId()) || player.isInsideVehicle() || !player.getPassengers().isEmpty() || player.getGameMode() == GameMode.SPECTATOR || !player.isOnGround()) {
            return;
        }
        if (relative.isLiquid() || !(relative.isEmpty() || relative.isPassable())) {
            player.sendMessage(I18n.format("user.sit.invalid_location"));
            return;
        }
        Vector vector = block.getBoundingBox().getCenter().clone();
        Location loc = vector.setY(block.getBoundingBox().getMaxY()).toLocation(player.getWorld()).clone();
        for (SitLocation sl : plugin.cfg.sit_locations.values()) {
            if (sl.blocks != null && sl.x != null && sl.y != null && sl.z != null && sl.blocks.contains(block.getType().name())) {
                loc.add(sl.x, sl.y, sl.z);
            }
        }
        if (block.getBlockData() instanceof Directional) {
            face = ((Directional) block.getBlockData()).getFacing();
            if (face == BlockFace.EAST) {
                loc.setYaw(90);
            } else if (face == BlockFace.WEST) {
                loc.setYaw(-90);
            } else if (face == BlockFace.NORTH) {
                loc.setYaw(0);
            } else if (face == BlockFace.SOUTH) {
                loc.setYaw(-180);
            }
        } else {
            if (face == BlockFace.WEST) {
                loc.setYaw(90);
            } else if (face == BlockFace.EAST) {
                loc.setYaw(-90);
            } else if (face == BlockFace.SOUTH) {
                loc.setYaw(0);
            } else if (face == BlockFace.NORTH) {
                loc.setYaw(-180);
            } else {
                loc.setYaw(player.getEyeLocation().getYaw());
            }
        }
        for (Entity e : loc.getWorld().getNearbyEntities(loc, 0.5, 0.7, 0.5)) {
            if (e instanceof LivingEntity) {
                if (e.hasMetadata(metadata_key) || (e instanceof Player && e.isInsideVehicle() && e.getVehicle().hasMetadata(metadata_key))) {
                    player.sendMessage(I18n.format("user.sit.invalid_location"));
                    return;
                }
            }
        }
        Location safeLoc = player.getLocation().clone();
        ArmorStand armorStand = loc.getWorld().spawn(loc, ArmorStand.class, (e) -> {
            e.setVisible(false);
            e.setPersistent(false);
            e.setCanPickupItems(false);
            e.setBasePlate(false);
            e.setArms(false);
            e.setMarker(true);
            e.setInvulnerable(true);
            e.setGravity(false);
        });
        if (armorStand != null) {
            armorStand.setMetadata(metadata_key, new FixedMetadataValue(plugin, true));
            if (armorStand.addPassenger(player)) {
                safeLocations.put(player.getUniqueId(), safeLoc);
            } else {
                armorStand.remove();
            }
        }
    }
}
 

@SuppressWarnings("deprecation")
@Override
public void execute(CommandSender sender, String label, String[] args) throws CommandException {
	Player player = CommandValidator.getPlayerSender(sender);
	String hologramName = args[0];

	if (!hologramName.matches("[a-zA-Z0-9_\\-]+")) {
		throw new CommandException("The name must contain only alphanumeric chars, underscores and hyphens.");
	}

	CommandValidator.isTrue(!NamedHologramManager.isExistingHologram(hologramName), "A hologram with that name already exists.");

	Location spawnLoc = player.getLocation();
	boolean moveUp = player.isOnGround();

	if (moveUp) {
		spawnLoc.add(0.0, 1.2, 0.0);
	}

	NamedHologram hologram = new NamedHologram(spawnLoc, hologramName);

	if (args.length > 1) {
		String text = Utils.join(args, " ", 1, args.length);
		CommandValidator.isTrue(!text.equalsIgnoreCase("{empty}"), "The first line should not be empty.");
		
		CraftHologramLine line = CommandValidator.parseHologramLine(hologram, text, true);
		hologram.getLinesUnsafe().add(line);
		player.sendMessage(Colors.SECONDARY_SHADOW + "(Change the lines with /" + label + " edit " + hologram.getName() + ")");
	} else {
		hologram.appendTextLine("Default hologram. Change it with " + Colors.PRIMARY + "/" + label + " edit " + hologram.getName());
	}

	NamedHologramManager.addHologram(hologram);
	hologram.refreshAll();

	HologramDatabase.saveHologram(hologram);
	HologramDatabase.trySaveToDisk();
	Location look = player.getLocation();
	look.setPitch(90);
	player.teleport(look, TeleportCause.PLUGIN);
	player.sendMessage(Colors.PRIMARY + "You created a hologram named '" + hologram.getName() + "'.");

	if (moveUp) {
		player.sendMessage(Colors.SECONDARY_SHADOW + "(You were on the ground, the hologram was automatically moved up. If you use /" + label + " movehere " + hologram.getName() + ", the hologram will be moved to your feet)");
	}
}