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NPCSelector.java
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NPCSelector.java
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package net.citizensnpcs.npc;
import java.util.List;
import java.util.UUID;
import org.bukkit.Bukkit;
import org.bukkit.World;
import org.bukkit.block.Block;
import org.bukkit.command.BlockCommandSender;
import org.bukkit.command.CommandSender;
import org.bukkit.command.ConsoleCommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.metadata.FixedMetadataValue;
import org.bukkit.metadata.MetadataValue;
import org.bukkit.metadata.Metadatable;
import org.bukkit.plugin.Plugin;
import com.google.common.collect.Lists;
import net.citizensnpcs.Settings.Setting;
import net.citizensnpcs.api.CitizensAPI;
import net.citizensnpcs.api.event.CitizensGetSelectedNPCEvent;
import net.citizensnpcs.api.event.NPCRemoveEvent;
import net.citizensnpcs.api.event.NPCRightClickEvent;
import net.citizensnpcs.api.event.NPCSelectEvent;
import net.citizensnpcs.api.npc.NPC;
import net.citizensnpcs.api.trait.trait.Owner;
import net.citizensnpcs.api.util.Messaging;
import net.citizensnpcs.editor.Editor;
import net.citizensnpcs.util.Util;
public class NPCSelector implements Listener, net.citizensnpcs.api.npc.NPCSelector {
private UUID consoleSelectedNPC;
private final Plugin plugin;
public NPCSelector(Plugin plugin) {
this.plugin = plugin;
Bukkit.getPluginManager().registerEvents(this, plugin);
}
@Override
public NPC getSelected(CommandSender sender) {
CitizensGetSelectedNPCEvent event = new CitizensGetSelectedNPCEvent(sender);
Bukkit.getPluginManager().callEvent(event);
if (event.getSelected() != null) {
return event.getSelected();
}
if (sender instanceof Player) {
return getSelectedFromMetadatable((Player) sender);
} else if (sender instanceof BlockCommandSender) {
return getSelectedFromMetadatable(((BlockCommandSender) sender).getBlock());
} else if (sender instanceof ConsoleCommandSender) {
if (consoleSelectedNPC == null)
return null;
return CitizensAPI.getNPCRegistry().getByUniqueIdGlobal(consoleSelectedNPC);
}
return null;
}
private NPC getSelectedFromMetadatable(Metadatable sender) {
List<MetadataValue> metadata = sender.getMetadata("selected");
if (metadata.size() == 0)
return null;
if (metadata.get(0).value() == null) {
sender.removeMetadata("selected", plugin);
return null;
}
return CitizensAPI.getNPCRegistry().getByUniqueIdGlobal((UUID) metadata.get(0).value());
}
@EventHandler
public void onNPCRemove(NPCRemoveEvent event) {
NPC npc = event.getNPC();
List<String> selectors = npc.data().get("selectors");
if (selectors == null)
return;
for (String value : selectors) {
if (value.equals("console")) {
consoleSelectedNPC = null;
} else if (value.startsWith("@")) {
String[] parts = value.substring(1, value.length()).split(":");
World world = Bukkit.getWorld(parts[0]);
if (world != null) {
Block block = world.getBlockAt(Integer.parseInt(parts[1]), Integer.parseInt(parts[2]),
Integer.parseInt(parts[3]));
removeMetadata(block);
}
} else {
removeMetadata(Bukkit.getPlayer(UUID.fromString(value)));
}
}
npc.data().remove("selectors");
}
@EventHandler
public void onNPCRightClick(NPCRightClickEvent event) {
Player player = event.getClicker();
NPC npc = event.getNPC();
List<MetadataValue> selected = player.getMetadata("selected");
if (selected == null || selected.size() == 0 || selected.get(0).asInt() != npc.getId()) {
if (Util.matchesItemInHand(player, Setting.SELECTION_ITEM.asString())
&& npc.getOrAddTrait(Owner.class).isOwnedBy(player)) {
player.removeMetadata("selected", plugin);
select(player, npc);
Messaging.sendWithNPC(player, Setting.SELECTION_MESSAGE.asString(), npc);
event.setDelayedCancellation(true);
}
}
}
private void removeMetadata(Metadatable metadatable) {
if (metadatable != null) {
metadatable.removeMetadata("selected", plugin);
}
}
@Override
public void select(CommandSender sender, NPC npc) {
// Remove existing selection if any
List<String> selectors = npc.data().get("selectors");
if (selectors == null) {
selectors = Lists.newArrayList();
npc.data().set("selectors", selectors);
}
if (sender instanceof Player) {
Player player = (Player) sender;
setMetadata(npc, player);
selectors.add(player.getUniqueId().toString());
// Remove editor if the player has one
Editor.leave(player);
} else if (sender instanceof BlockCommandSender) {
Block block = ((BlockCommandSender) sender).getBlock();
while (block != null) {
setMetadata(npc, block);
selectors.add(toName(block));
if (block.getBlockData() instanceof org.bukkit.block.data.Directional) {
block = block.getRelative(((org.bukkit.block.data.Directional) block.getBlockData()).getFacing());
if (!block.getType().name().contains("COMMAND_BLOCK")) {
block = null;
}
} else {
block = null;
}
}
} else if (sender instanceof ConsoleCommandSender) {
consoleSelectedNPC = npc.getUniqueId();
selectors.add("console");
}
Bukkit.getPluginManager().callEvent(new NPCSelectEvent(npc, sender));
}
private void setMetadata(NPC npc, Metadatable metadatable) {
if (metadatable.hasMetadata("selected")) {
metadatable.removeMetadata("selected", plugin);
}
metadatable.setMetadata("selected", new FixedMetadataValue(plugin, npc.getUniqueId()));
}
private String toName(Block block) {
return '@' + block.getWorld().getName() + ":" + Integer.toString(block.getX()) + ":"
+ Integer.toString(block.getY()) + ":" + Integer.toString(block.getZ());
}
}