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InventoryTag.java
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InventoryTag.java
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package com.denizenscript.denizen.objects;
import com.denizenscript.denizen.scripts.containers.core.InventoryScriptContainer;
import com.denizenscript.denizen.scripts.containers.core.InventoryScriptHelper;
import com.denizenscript.denizen.utilities.DenizenAPI;
import com.denizenscript.denizen.utilities.Utilities;
import com.denizenscript.denizen.utilities.debugging.Debug;
import com.denizenscript.denizen.utilities.depends.Depends;
import com.denizenscript.denizen.utilities.inventory.SlotHelper;
import com.denizenscript.denizen.utilities.nbt.CustomNBT;
import com.denizenscript.denizencore.objects.*;
import com.denizenscript.denizen.nms.NMSHandler;
import com.denizenscript.denizen.nms.NMSVersion;
import com.denizenscript.denizen.nms.abstracts.ImprovedOfflinePlayer;
import com.denizenscript.denizen.objects.notable.NotableManager;
import com.denizenscript.denizen.tags.BukkitTagContext;
import com.denizenscript.denizencore.objects.core.ElementTag;
import com.denizenscript.denizencore.objects.core.ListTag;
import com.denizenscript.denizencore.objects.notable.Notable;
import com.denizenscript.denizencore.objects.notable.Note;
import com.denizenscript.denizencore.objects.properties.PropertyParser;
import com.denizenscript.denizencore.scripts.ScriptRegistry;
import com.denizenscript.denizencore.tags.Attribute;
import com.denizenscript.denizencore.tags.ObjectTagProcessor;
import com.denizenscript.denizencore.tags.TagContext;
import com.denizenscript.denizencore.tags.TagRunnable;
import com.denizenscript.denizencore.utilities.CoreUtilities;
import com.denizenscript.denizencore.utilities.Deprecations;
import net.citizensnpcs.api.CitizensAPI;
import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.block.BlockState;
import org.bukkit.block.DoubleChest;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.Listener;
import org.bukkit.event.inventory.InventoryCloseEvent;
import org.bukkit.event.inventory.InventoryOpenEvent;
import org.bukkit.event.inventory.InventoryType;
import org.bukkit.inventory.*;
import org.bukkit.inventory.meta.BookMeta;
import java.util.*;
import java.util.regex.Matcher;
public class InventoryTag implements ObjectTag, Notable, Adjustable {
// <--[language]
// @name InventoryTag Objects
// @group Object System
// @description
// An InventoryTag represents an inventory, generically or attached to some in-the-world object.
//
// Inventories can be generically designed using inventory script containers,
// and can be modified using the inventory command.
//
// For format info, see <@link language in@>
//
// -->
// <--[language]
// @name in@
// @group Object Fetcher System
// @description
// in@ refers to the 'object identifier' of an InventoryTag. The 'in@' is notation for Denizen's Object
// Fetcher. The constructor for an InventoryTag is a the classification type of inventory to use. All other data is specified through properties.
//
// Valid inventory type classifications:
// "npc", "player", "crafting", "enderchest", "workbench", "entity", "location", "generic"
//
// For general info, see <@link language InventoryTag Objects>
//
// -->
public static class InventoryTrackerSystem implements Listener {
public static HashMap<Long, InventoryTag> idTrackedInventories = new HashMap<>(512);
public static long temporaryInventoryIdCounter = 0;
public static HashMap<Inventory, InventoryTag> temporaryInventoryLinks = new HashMap<>(512);
public static HashMap<Inventory, InventoryTag> retainedInventoryLinks = new HashMap<>(512);
public static InventoryTag getTagFormFor(Inventory inventory) {
if (inventory == null) {
return null;
}
InventoryTag result = temporaryInventoryLinks.get(inventory);
if (result != null) {
return result;
}
return retainedInventoryLinks.get(inventory);
}
public static boolean isGenericTrackable(InventoryTag tagForm) {
if (tagForm == null || tagForm.getIdType() == null) {
return false;
}
return tagForm.getIdType().equals("generic") || tagForm.getIdType().equals("script");
}
@EventHandler(priority = EventPriority.MONITOR)
public void onPlayerOpensInventory(InventoryOpenEvent event) {
if (event.isCancelled()) {
return;
}
InventoryTag tagForm = getTagFormFor(event.getInventory());
if (isGenericTrackable(tagForm)) {
retainedInventoryLinks.put(event.getInventory(), tagForm);
}
}
@EventHandler(priority = EventPriority.MONITOR)
public void onPlayerCloseInventory(InventoryCloseEvent event) {
Inventory inv = event.getInventory();
Bukkit.getScheduler().scheduleSyncDelayedTask(DenizenAPI.getCurrentInstance(), new Runnable() {
@Override
public void run() {
if (inv.getViewers().isEmpty()) {
InventoryTag removed = retainedInventoryLinks.remove(inv);
if (removed != null && removed.uniquifier != null) {
idTrackedInventories.remove(removed.uniquifier);
temporaryInventoryLinks.put(inv, removed);
}
}
}
}, 1);
}
public static void trackTemporaryInventory(Inventory inventory, InventoryTag tagForm) {
if (inventory == null || tagForm == null) {
return;
}
if (!isGenericTrackable(tagForm)) {
return;
}
String title = NMSHandler.getInstance().getTitle(inventory);
if (InventoryScriptHelper.notableInventories.containsKey(title)) {
return;
}
if (tagForm.uniquifier == null) {
tagForm.uniquifier = temporaryInventoryIdCounter++;
}
if (!idTrackedInventories.containsKey(tagForm.uniquifier)) {
idTrackedInventories.put(tagForm.uniquifier, tagForm);
}
temporaryInventoryLinks.put(inventory, tagForm);
}
public static void setup() {
Bukkit.getScheduler().scheduleSyncRepeatingTask(DenizenAPI.getCurrentInstance(), new Runnable() {
@Override
public void run() {
InventoryTrackerSystem.temporaryInventoryLinks.clear();
}
}, 20, 20);
Bukkit.getPluginManager().registerEvents(new InventoryTrackerSystem(), DenizenAPI.getCurrentInstance());
}
}
public static void trackTemporaryInventory(InventoryTag tagForm) {
if (tagForm == null) {
return;
}
InventoryTrackerSystem.trackTemporaryInventory(tagForm.inventory, tagForm);
}
public static void setupInventoryTracker() {
InventoryTrackerSystem.setup();
}
public static InventoryTag mirrorBukkitInventory(Inventory inventory) {
if (inventory == null) {
return null;
}
InventoryTag result = InventoryTrackerSystem.getTagFormFor(inventory);
if (result != null) {
return result;
}
// Use the map to get notable inventories
String title = NMSHandler.getInstance().getTitle(inventory);
result = InventoryScriptHelper.notableInventories.get(title);
if (result != null) {
return result;
}
// Iterate through offline player inventories
for (Map.Entry<UUID, PlayerInventory> inv : ImprovedOfflinePlayer.offlineInventories.entrySet()) {
if (inv.getValue().equals(inventory)) {
return new InventoryTag(NMSHandler.getPlayerHelper().getOfflineData(inv.getKey()));
}
}
// Iterate through offline player enderchests
for (Map.Entry<UUID, Inventory> inv : ImprovedOfflinePlayer.offlineEnderChests.entrySet()) {
if (inv.getValue().equals(inventory)) {
return new InventoryTag(NMSHandler.getPlayerHelper().getOfflineData(inv.getKey()), true);
}
}
return new InventoryTag(inventory);
}
/////////////////////
// STATIC FIELDS
/////////////////
// The maximum number of slots a Bukkit inventory can have
public final static int maxSlots = 54;
// All of the inventory id types we use
public final static String[] idTypes = {"npc", "player", "crafting", "enderchest", "workbench", "entity", "location", "generic"};
/////////////////////
// NOTABLE METHODS
/////////////////
public boolean isUnique() {
return NotableManager.isSaved(this);
}
@Note("Inventories")
public String getSaveObject() {
return "in@" + idType + PropertyParser.getPropertiesString(this);
}
public String notableColors = null;
// in 1.13, we use "&1.&2.&3.", below that we can just use "&1&2&3"
public static int inventoryNameNotableRequired = NMSHandler.getVersion().isAtLeast(NMSVersion.v1_13) ? 9 : 6;
public static int inventoryNameNotableMax = 32 - inventoryNameNotableRequired;
public void makeUnique(String id) {
String title = NMSHandler.getInstance().getTitle(inventory);
if (title == null || title.startsWith("container.")) {
title = inventory.getType().getDefaultTitle();
}
// You can only have 32 characters in an inventory title... So let's make sure we have at least 3 colors...
// which brings notable inventory title lengths down to 26... TODO: document this/fix if possible in later version
if (title.length() > inventoryNameNotableMax) {
title = title.substring(0, title.charAt(inventoryNameNotableMax - 1) == '§' ? (inventoryNameNotableMax - 1) : inventoryNameNotableMax);
}
String colors;
int x = 0;
while (true) {
x++;
if (x > 5000) {
Debug.echoError("Inventory note failed - too many notes already!");
return;
}
if (NMSHandler.getVersion().isAtLeast(NMSVersion.v1_13)) {
colors = Utilities.generateRandomColorsWithDots(3);
}
else {
colors = Utilities.generateRandomColors(3);
}
if (!InventoryScriptHelper.notableInventories.containsKey(title + colors)) {
notableColors = colors;
ItemStack[] contents = inventory.getContents();
if (getInventoryType() == InventoryType.CHEST) {
inventory = Bukkit.getServer().createInventory(null, inventory.getSize(), title + colors);
}
else {
inventory = Bukkit.getServer().createInventory(null, inventory.getType(), title + colors);
}
inventory.setContents(contents);
InventoryScriptHelper.notableInventories.put(title + colors, this);
break;
}
}
idType = null;
idHolder = null;
loadIdentifiers();
NotableManager.saveAs(this, id);
}
public void forget() {
notableColors = null;
NotableManager.remove(idHolder);
}
//////////////////
// OBJECT FETCHER
////////////////
@Fetchable("in")
public static InventoryTag valueOf(String string, TagContext context) {
if (context == null) {
return valueOf(string, null, null);
}
else {
return valueOf(string, ((BukkitTagContext) context).player, ((BukkitTagContext) context).npc, !context.debug);
}
}
public static InventoryTag valueOf(String string, PlayerTag player, NPCTag npc) {
return valueOf(string, player, npc, false);
}
public static InventoryTag valueOf(String string, PlayerTag player, NPCTag npc, boolean silent) {
if (string == null) {
return null;
}
///////
// Handle objects with properties through the object fetcher
Matcher describedMatcher = ObjectFetcher.DESCRIBED_PATTERN.matcher(string);
if (describedMatcher.matches()) {
InventoryTag result = ObjectFetcher.getObjectFrom(InventoryTag.class, string,
new BukkitTagContext(player, npc, false, null, false, null));
if (result != null && result.uniquifier != null) {
InventoryTag fixedResult = InventoryTrackerSystem.idTrackedInventories.get(result.uniquifier);
if (fixedResult != null) {
trackTemporaryInventory(fixedResult);
return fixedResult;
}
}
trackTemporaryInventory(result);
return result;
}
if (string.startsWith("in@")) {
string = string.substring("in@".length());
}
if (ScriptRegistry.containsScript(string, InventoryScriptContainer.class)) {
return ScriptRegistry.getScriptContainerAs(string, InventoryScriptContainer.class).getInventoryFrom(player, npc);
}
Notable noted = NotableManager.getSavedObject(string);
if (noted instanceof InventoryTag) {
return (InventoryTag) noted;
}
for (String idType : idTypes) {
if (string.equalsIgnoreCase(idType)) {
InventoryTag result = new InventoryTag(string);
trackTemporaryInventory(result);
return result;
}
}
if (!silent) {
Debug.echoError("Value of InventoryTag returning null. Invalid InventoryTag specified: " + string);
}
return null;
}
/**
* Determine whether a string is a valid inventory.
*
* @param arg the arg string
* @return true if matched, otherwise false
*/
public static boolean matches(String arg) {
if (CoreUtilities.toLowerCase(arg).startsWith("in@")) {
return true;
}
String tid = arg;
if (arg.contains("[")) {
tid = arg.substring(0, arg.indexOf('['));
}
if (new ElementTag(tid).matchesEnum(InventoryType.values())) {
return true;
}
if (ScriptRegistry.containsScript(tid, InventoryScriptContainer.class)) {
return true;
}
if (NotableManager.isType(tid, InventoryTag.class)) {
return true;
}
for (String idType : idTypes) {
if (tid.equalsIgnoreCase(idType)) {
return true;
}
}
return false;
}
///////////////
// Constructors
/////////////
String idType = null;
String idHolder = null;
public Long uniquifier = null;
public String scriptName = null;
public InventoryTag(Inventory inventory) {
this.inventory = inventory;
loadIdentifiers();
}
public InventoryTag(Inventory inventory, InventoryHolder holder) {
this.inventory = inventory;
loadIdentifiers(holder);
}
public InventoryTag(InventoryHolder holder) {
inventory = holder.getInventory();
loadIdentifiers();
}
public InventoryTag(ItemStack[] items) {
inventory = Bukkit.getServer().createInventory(null, (int) Math.ceil(items.length / 9.0) * 9);
setContents(items);
loadIdentifiers();
}
public InventoryTag(ImprovedOfflinePlayer offlinePlayer) {
this(offlinePlayer, false);
}
public InventoryTag(ImprovedOfflinePlayer offlinePlayer, boolean isEnderChest) {
inventory = isEnderChest ? offlinePlayer.getEnderChest() : offlinePlayer.getInventory();
setIdentifiers(isEnderChest ? "enderchest" : "player", "p@" + offlinePlayer.getUniqueId());
}
public InventoryTag(int size, String title) {
if (size <= 0 || size % 9 != 0) {
Debug.echoError("InventorySize must be multiple of 9, and greater than 0.");
return;
}
inventory = Bukkit.getServer().createInventory(null, size, title);
loadIdentifiers();
}
public InventoryTag(InventoryType type) {
inventory = Bukkit.getServer().createInventory(null, type);
loadIdentifiers();
}
public InventoryTag(int size) {
this(size, "Chest");
}
public InventoryTag(String idType) {
this.idType = CoreUtilities.toLowerCase(idType);
}
/////////////////////
// INSTANCE FIELDS/METHODS
/////////////////
// Associated with Bukkit Inventory
private Inventory inventory = null;
public Inventory getInventory() {
return inventory;
}
/**
* Changes the inventory to a new inventory, possibly of a different
* type, size, and with different contents.
* NOTE: SHOULD ONLY BE USED IN CASES WHERE THERE
* ARE NO OTHER OPTIONS.
*
* @param inventory The new inventory
*/
public void setInventory(Inventory inventory) {
this.inventory = inventory;
loadIdentifiers();
}
public void setInventory(Inventory inventory, PlayerTag player) {
this.inventory = inventory;
this.idHolder = player.identify();
}
public void setTitle(String title) {
if (!(getIdType().equals("generic") || getIdType().equals("script")) || title == null) {
return;
}
if (inventory != null && NMSHandler.getInstance().getTitle(inventory).equals(title)) {
return;
}
if (inventory == null) {
inventory = Bukkit.getServer().createInventory(null, maxSlots, title);
loadIdentifiers();
return;
}
else if (notableColors != null) {
title += notableColors;
InventoryScriptHelper.notableInventories.remove(NMSHandler.getInstance().getTitle(inventory));
InventoryScriptHelper.notableInventories.put(title, this);
}
ItemStack[] contents = inventory.getContents();
if (inventory.getType() == InventoryType.CHEST) {
inventory = Bukkit.getServer().createInventory(null, inventory.getSize(), title);
}
else {
inventory = Bukkit.getServer().createInventory(null, inventory.getType(), title);
}
inventory.setContents(contents);
loadIdentifiers();
}
public boolean containsItem(ItemTag item, int amount) {
if (item == null) {
return false;
}
item = new ItemTag(item.getItemStack().clone());
item.setAmount(1);
String myItem = CoreUtilities.toLowerCase(item.getFullString());
for (int i = 0; i < inventory.getSize(); i++) {
ItemStack is = inventory.getItem(i);
if (is == null || item.getMaterial().getMaterial() != is.getType()) {
continue;
}
is = is.clone();
int count = is.getAmount();
is.setAmount(1);
String newItem = CoreUtilities.toLowerCase(new ItemTag(is).getFullString());
if (myItem.equals(newItem)) {
if (count <= amount) {
amount -= count;
if (amount == 0) {
return true;
}
}
else if (count > amount) {
return true;
}
}
}
return false;
}
public boolean removeItem(ItemTag item, int amount) {
if (item == null) {
return false;
}
item = new ItemTag(item.getItemStack().clone());
item.setAmount(1);
String myItem = CoreUtilities.toLowerCase(item.getFullString());
for (int i = 0; i < inventory.getSize(); i++) {
ItemStack is = inventory.getItem(i);
if (is == null) {
continue;
}
is = is.clone();
int count = is.getAmount();
is.setAmount(1);
// Note: this double-parsing is intentional, as part of a hotfix for a larger issue
String newItem = CoreUtilities.toLowerCase(ItemTag.valueOf(new ItemTag(is).getFullString(), false).getFullString());
if (myItem.equals(newItem)) {
if (count <= amount) {
NMSHandler.getItemHelper().setInventoryItem(inventory, null, i);
amount -= count;
if (amount == 0) {
return true;
}
}
else {
is.setAmount(count - amount);
NMSHandler.getItemHelper().setInventoryItem(inventory, is, i);
return true;
}
}
}
return false;
}
public void setSize(int size) {
if (!getIdType().equals("generic")) {
return;
}
else if (size <= 0 || size % 9 != 0) {
Debug.echoError("InventorySize must be multiple of 9, and greater than 0.");
return;
}
else if (inventory == null) {
inventory = Bukkit.getServer().createInventory(null, size, "Chest");
loadIdentifiers();
return;
}
int oldSize = inventory.getSize();
ItemStack[] oldContents = inventory.getContents();
ItemStack[] newContents = new ItemStack[size];
if (oldSize > size) {
for (int i = 0; i < size; i++) { // TODO: Why is this a manual copy?
newContents[i] = oldContents[i];
}
}
else {
newContents = oldContents;
}
String title = NMSHandler.getInstance().getTitle(inventory);
inventory = Bukkit.getServer().createInventory(null, size, (title != null ? title : inventory.getType().getDefaultTitle()));
inventory.setContents(newContents);
loadIdentifiers();
}
private void loadIdentifiers() {
loadIdentifiers(inventory.getHolder());
}
private void loadIdentifiers(final InventoryHolder holder) {
if (inventory == null) {
return;
}
trackTemporaryInventory(this);
if (holder != null) {
if (holder instanceof NPCTag) {
idType = "npc";
idHolder = ((NPCTag) holder).identify();
return;
}
else if (holder instanceof Player) {
if (Depends.citizens != null && CitizensAPI.getNPCRegistry().isNPC((Player) holder)) {
idType = "npc";
idHolder = (NPCTag.fromEntity((Player) holder)).identify();
return;
}
if (inventory.getType() == InventoryType.CRAFTING) {
idType = "crafting";
}
if (inventory.getType() == InventoryType.ENDER_CHEST) {
idType = "enderchest";
}
else if (inventory.getType() == InventoryType.WORKBENCH) {
idType = "workbench";
}
else {
idType = "player";
}
idHolder = new PlayerTag((Player) holder).identify();
return;
}
else if (holder instanceof Entity) {
idType = "entity";
idHolder = new EntityTag((Entity) holder).identify();
return;
}
else {
idType = "location";
try {
idHolder = getLocation(holder).identify();
}
catch (NullPointerException e) {
idHolder = "null";
}
return;
}
}
else if (getIdType().equals("player")) {
// Iterate through offline player inventories
for (Map.Entry<UUID, PlayerInventory> inv : ImprovedOfflinePlayer.offlineInventories.entrySet()) { // TODO: Less weird lookup?
if (inv.getValue().equals(inventory)) {
idHolder = new PlayerTag(inv.getKey()).identify();
return;
}
}
}
else if (getIdType().equals("enderchest")) {
// Iterate through offline player enderchests
for (Map.Entry<UUID, Inventory> inv : ImprovedOfflinePlayer.offlineEnderChests.entrySet()) { // TODO: Less weird lookup?
if (inv.getValue().equals(inventory)) {
idHolder = new PlayerTag(inv.getKey()).identify();
return;
}
}
}
else if (getIdType().equals("script")) {
InventoryTag tracked = InventoryTrackerSystem.retainedInventoryLinks.get(inventory);
if (tracked != null) {
idHolder = tracked.idHolder;
return;
}
}
idType = "generic";
idHolder = getInventory().getType().name();
}
public InventoryTag setIdentifiers(String type, String holder) {
idType = type;
idHolder = holder;
return this;
}
/**
* Generally shouldn't be used.
*/
public void setIdType(String type) {
idType = type;
}
public String getIdType() {
return idType == null ? "" : idType;
}
public String getIdHolder() {
return idHolder == null ? "" : idHolder;
}
/**
* Return the LocationTag of this inventory's
* holder
*
* @return The holder's LocationTag
*/
public LocationTag getLocation() {
return getLocation(inventory.getHolder());
}
public LocationTag getLocation(InventoryHolder holder) {
if (inventory != null && holder != null) {
if (holder instanceof BlockState) {
return new LocationTag(((BlockState) holder).getLocation());
}
else if (holder instanceof DoubleChest) {
return new LocationTag(((DoubleChest) holder).getLocation());
}
else if (holder instanceof Entity) {
return new LocationTag(((Entity) holder).getLocation());
}
else if (holder instanceof NPCTag) {
NPCTag npc = (NPCTag) holder;
if (npc.getLocation() == null) {
return new LocationTag(((NPCTag) holder).getCitizen().getStoredLocation());
}
return npc.getLocation();
}
}
return null;
}
public ItemStack[] getContents() {
if (inventory != null) {
return inventory.getContents();
}
else {
return new ItemStack[0];
}
}
public ItemStack[] getStorageContents() {
if (inventory != null) {
return inventory.getStorageContents();
}
else {
return new ItemStack[0];
}
}
public ListTag getEquipment() {
ItemStack[] equipment = null;
if (inventory instanceof PlayerInventory) {
equipment = ((PlayerInventory) inventory).getArmorContents();
}
else if (inventory instanceof HorseInventory) {
equipment = new ItemStack[] {((HorseInventory) inventory).getSaddle(), ((HorseInventory) inventory).getArmor()};
}
if (equipment == null) {
return null;
}
ListTag equipmentList = new ListTag();
for (ItemStack item : equipment) {
equipmentList.addObject(new ItemTag(item));
}
return equipmentList;
}
public ItemTag getFuel() {
if (inventory instanceof FurnaceInventory) {
return new ItemTag(((FurnaceInventory) inventory).getFuel());
}
if (inventory instanceof BrewerInventory) {
return new ItemTag(((BrewerInventory) inventory).getFuel());
}
return null;
}
public ItemTag getInput() {
if (inventory instanceof FurnaceInventory) {
return new ItemTag(((FurnaceInventory) inventory).getSmelting());
}
if (inventory instanceof BrewerInventory) {
return new ItemTag(((BrewerInventory) inventory).getIngredient());
}
return null;
}
public InventoryType getInventoryType() {
return inventory.getType();
}
public int getSize() {
return inventory.getSize();
}
public void remove(ItemStack item) {
inventory.remove(item);
}
public void setContents(ItemStack[] contents) {
inventory.setContents(contents);
}
public void setContents(ListTag list, TagContext context) {
int size;
if (inventory == null) {
size = (int) Math.ceil(list.size() / 9.0) * 9;
if (size == 0) {
size = 9;
}
inventory = Bukkit.getServer().createInventory(null, size);
loadIdentifiers();
}
else {
size = inventory.getSize();
}
ItemStack[] contents = new ItemStack[size];
int filled = 0;
for (ItemTag item : list.filter(ItemTag.class, context)) {
contents[filled] = item.getItemStack();
filled++;
}
final ItemStack air = new ItemStack(Material.AIR);
while (filled < size) {
contents[filled] = air;
filled++;
}
inventory.setContents(contents);
if (Depends.citizens != null && NPCTag.matches(idHolder)) { // TODO: Directly store holder
NPCTag.valueOf(idHolder).getInventoryTrait().setContents(contents);
}
}
public boolean update() {
if (getIdType().equals("player")) {
PlayerTag.valueOf(idHolder).getPlayerEntity().updateInventory();
return true;
}
return false;
}
public int firstPartial(int startSlot, ItemStack item) {
ItemStack[] inventory = getContents();
if (item == null) {
return -1;
}
for (int i = startSlot; i < inventory.length; i++) {
ItemStack item1 = inventory[i];
if (item1 != null && item1.getAmount() < item.getMaxStackSize() && item1.isSimilar(item)) {
return i;
}
}
return -1;
}
public int firstEmpty(int startSlot) {
ItemStack[] inventory = getStorageContents();
for (int i = startSlot; i < inventory.length; i++) {
if (inventory[i] == null) {
return i;
}
}
return -1;
}
/////////////////////
// INVENTORY MANIPULATION
/////////////////
// Somewhat simplified version of CraftBukkit's current code
public InventoryTag add(int slot, ItemStack... items) {
if (inventory == null || items == null) {
return this;
}
for (int i = 0; i < items.length; i++) {
ItemStack item = items[i];
if (item == null) {
continue;
}
int amount = item.getAmount();
int max = item.getMaxStackSize();
while (true) {
// Do we already have a stack of it?
int firstPartial = firstPartial(slot, item);
// Drat! no partial stack
if (firstPartial == -1) {
// Find a free spot!
int firstFree = firstEmpty(slot);
if (firstFree == -1) {
// No space at all!
break;
}
else {
// More than a single stack!
if (amount > max) {
ItemStack clone = item.clone();
clone.setAmount(max);
NMSHandler.getItemHelper().setInventoryItem(inventory, clone, firstFree);
item.setAmount(amount -= max);
}
else {
// Just store it
NMSHandler.getItemHelper().setInventoryItem(inventory, item, firstFree);
break;
}
}
}
else {
// So, apparently it might only partially fit, well lets do just that
ItemStack partialItem = inventory.getItem(firstPartial);
int partialAmount = partialItem.getAmount();
int total = amount + partialAmount;
// Check if it fully fits
if (total <= max) {
partialItem.setAmount(total);
break;
}
// It fits partially
partialItem.setAmount(max);
item.setAmount(amount = total - max);
}
}
}
return this;
}
public List<ItemStack> addWithLeftovers(int slot, boolean keepMaxStackSize, ItemStack... items) {
if (inventory == null || items == null) {
return null;
}
List<ItemStack> leftovers = new ArrayList<>();
for (int i = 0; i < items.length; i++) {
ItemStack item = items[i];
if (item == null) {
continue;
}
int amount = item.getAmount();
int max;
if (keepMaxStackSize) {
max = item.getMaxStackSize();
}
else {
max = 64;
}
while (true) {
// Do we already have a stack of it?
int firstPartial = firstPartial(slot, item);
// Drat! no partial stack
if (firstPartial == -1) {
// Find a free spot!
int firstFree = firstEmpty(slot);
if (firstFree == -1) {
// No space at all!
leftovers.add(item);
break;
}
else {
// More than a single stack!
if (amount > max) {
ItemStack clone = item.clone();
clone.setAmount(max);
NMSHandler.getItemHelper().setInventoryItem(inventory, clone, firstFree);
item.setAmount(amount -= max);
}
else {
// Just store it
NMSHandler.getItemHelper().setInventoryItem(inventory, item, firstFree);
break;
}
}
}
else {
// So, apparently it might only partially fit, well lets do just that
ItemStack partialItem = inventory.getItem(firstPartial);
int partialAmount = partialItem.getAmount();
int total = amount + partialAmount;