Improves code structure, and performs some necessary work for commands
This commit is contained in:
src/main
java
net
resources
@ -0,0 +1,215 @@
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package net.knarcraft.blacksmith.trait;
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import net.citizensnpcs.api.npc.NPC;
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import net.citizensnpcs.api.trait.Trait;
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import net.citizensnpcs.api.util.DataKey;
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import net.knarcraft.blacksmith.BlacksmithPlugin;
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import net.knarcraft.blacksmith.config.NPCSettings;
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import net.knarcraft.blacksmith.manager.EconomyManager;
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import org.bukkit.Bukkit;
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import org.bukkit.Material;
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import org.bukkit.entity.LivingEntity;
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import org.bukkit.entity.Player;
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import org.bukkit.inventory.ItemStack;
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import org.bukkit.inventory.meta.Damageable;
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import java.util.Calendar;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Objects;
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import java.util.UUID;
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/**
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* The class representing the Blacksmith NPC trait
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*/
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public class BlacksmithTrait extends Trait {
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private final Map<UUID, Calendar> coolDowns = new HashMap<>();
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private ReforgeSession session;
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private final NPCSettings config;
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private long _sessionStart = System.currentTimeMillis();
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/**
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* Instantiates a new blacksmith trait
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*/
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public BlacksmithTrait() {
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super("blacksmith");
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//This should crash if the blacksmith plugin hasn't been properly registered
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Bukkit.getServer().getPluginManager().getPlugin("Blacksmith");
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this.config = new NPCSettings(BlacksmithPlugin.getInstance().getSettings());
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}
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/**
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* Gets the current settings for this NPC
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*
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* @return <p>The current settings for this NPC</p>
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*/
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public NPCSettings getSettings() {
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return config;
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}
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/**
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* Gets whether this blacksmith is already in a re-forge session
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*
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* @return <p>Whether already in a re-forge session</p>
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*/
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public boolean hasSession() {
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return this.session != null;
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}
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/**
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* Adds a cool-down for the given player's next blacksmith reforge
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*
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* @param playerUUID <p>The ID of the player to add the cool-down for</p>
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* @param waitUntil <p>The time when the player can interact again</p>
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*/
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public void addCoolDown(UUID playerUUID, Calendar waitUntil) {
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coolDowns.put(playerUUID, waitUntil);
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}
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/**
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* Unsets the session of this blacksmith, making it ready for another round
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*/
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public void unsetSession() {
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this.session = null;
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}
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/**
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* Loads all config values stored in citizens' config file for this NPC
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*
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* @param key <p>The data key used for the config root</p>
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*/
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@Override
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public void load(DataKey key) {
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config.loadVariables(key);
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}
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/**
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* Saves all config values for this NPC
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*
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* @param key <p>The data key used for the config root</p>
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*/
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@Override
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public void save(DataKey key) {
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config.saveVariables(key);
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}
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/**
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* Performs necessary work before the session is started or continued
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*
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* @param player <p>The player to prepare the session for</p>
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* @return <p>True if preparations were successful. False if a session shouldn't be started</p>
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*/
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public boolean prepareForSession(Player player) {
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//If cool-down has been disabled after it was set for this player, remove the cool-down
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if (config.getDisableCoolDown() && coolDowns.get(player.getUniqueId()) != null) {
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coolDowns.remove(player.getUniqueId());
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}
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//Deny if permission is missing
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if (!player.hasPermission("blacksmith.reforge")) {
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return false;
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}
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//Deny if on cool-down, or remove cool-down if expired
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if (coolDowns.get(player.getUniqueId()) != null) {
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if (!Calendar.getInstance().after(coolDowns.get(player.getUniqueId()))) {
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player.sendMessage(config.getCoolDownUnexpiredMessage());
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return false;
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}
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coolDowns.remove(player.getUniqueId());
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}
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//If already in a session, but the player has failed to interact, or left the blacksmith, allow a new session
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if (session != null) {
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if (System.currentTimeMillis() > _sessionStart + 10 * 1000 ||
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this.npc.getEntity().getLocation().distance(session.getPlayer().getLocation()) > 20) {
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session = null;
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}
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}
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return true;
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}
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/**
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* Tries to continue the session for the given player
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*
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* @param player <p>The player to continue the session for</p>
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*/
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public void continueSession(Player player) {
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//Another player is using the blacksmith
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if (!session.isInSession(player)) {
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player.sendMessage(config.getBusyWithPlayerMessage());
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return;
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}
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//The blacksmith is already reforging for the player
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if (session.isRunning()) {
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player.sendMessage(config.getBusyReforgingMessage());
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return;
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}
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if (session.endSession()) {
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//Quit if the player cannot afford, or has changed their item
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session = null;
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} else {
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//Start reforging for the player
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reforge(npc, player);
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}
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}
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/**
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* Starts a new session, and prepares to repair the player's item
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*
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* @param player <p>The player to start the session for</p>
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*/
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public void startSession(Player player) {
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ItemStack hand = player.getInventory().getItemInMainHand();
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//Refuse if not repairable, or if reforge-able items is set, but doesn't include the held item
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List<Material> reforgeAbleItems = config.getReforgeAbleItems();
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if (!isRepairable(hand) || (!reforgeAbleItems.isEmpty() && !reforgeAbleItems.contains(hand.getType()))) {
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player.sendMessage(config.getInvalidItemMessage());
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return;
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}
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//Start a new reforge session for the player
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_sessionStart = System.currentTimeMillis();
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session = new ReforgeSession(this, player, npc, config);
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//Tell the player the cost of repairing the item
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String cost = EconomyManager.formatCost(player);
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String itemName = hand.getType().name().toLowerCase().replace('_', ' ');
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player.sendMessage(config.getCostMessage().replace("<price>", cost).replace("<item>", itemName));
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}
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/**
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* Starts reforging the player's item
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*
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* @param npc <p>The NPC performing the reforge</p>
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* @param player <p>The player that initiated the reforge</p>
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*/
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private void reforge(NPC npc, Player player) {
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player.sendMessage(config.getStartReforgeMessage());
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EconomyManager.withdraw(player);
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session.beginReforge();
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ItemStack heldItem = player.getInventory().getItemInMainHand();
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//Display the item in the NPC's hand
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if (npc.getEntity() instanceof Player) {
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((Player) npc.getEntity()).getInventory().setItemInMainHand(heldItem);
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} else {
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Objects.requireNonNull(((LivingEntity) npc.getEntity()).getEquipment()).setItemInMainHand(heldItem);
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}
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//Remove the item from the player's inventory
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player.getInventory().setItemInMainHand(null);
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}
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/**
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* Gets whether the given item is repairable
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*
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* @param item <p>The item to check</p>
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* @return <p>True if the item is repairable</p>
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*/
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private static boolean isRepairable(ItemStack item) {
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return item.getItemMeta() instanceof Damageable;
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}
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}
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248
src/main/java/net/knarcraft/blacksmith/trait/ReforgeSession.java
Normal file
248
src/main/java/net/knarcraft/blacksmith/trait/ReforgeSession.java
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package net.knarcraft.blacksmith.trait;
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import net.citizensnpcs.api.npc.NPC;
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import net.knarcraft.blacksmith.BlacksmithPlugin;
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import net.knarcraft.blacksmith.config.NPCSettings;
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import net.knarcraft.blacksmith.manager.EconomyManager;
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import org.bukkit.NamespacedKey;
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import org.bukkit.enchantments.Enchantment;
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import org.bukkit.entity.LivingEntity;
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import org.bukkit.entity.Player;
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import org.bukkit.inventory.ItemStack;
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import org.bukkit.inventory.meta.Damageable;
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import org.bukkit.inventory.meta.ItemMeta;
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import java.util.Calendar;
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import java.util.Objects;
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import java.util.Random;
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import java.util.logging.Level;
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/**
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* A representation of the session between a player and a blacksmith
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*/
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public class ReforgeSession implements Runnable {
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private final BlacksmithTrait blacksmithTrait;
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private final Player player;
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private final NPC npc;
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private final ItemStack itemToReforge;
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private int taskId;
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private final NPCSettings config;
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private static final String[] enchantments = new String[Enchantment.values().length];
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private static final Random random = new Random();
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/**
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* Instantiates a new session
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*
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* @param blacksmithTrait <p>A reference to the blacksmith trait</p>
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* @param player <p>The player initiating the session</p>
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* @param npc <p>The Blacksmith NPC involved in the session</p>
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* @param config <p>The config to use for the session</p>
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*/
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ReforgeSession(BlacksmithTrait blacksmithTrait, Player player, NPC npc, NPCSettings config) {
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this.blacksmithTrait = blacksmithTrait;
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this.player = player;
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this.npc = npc;
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itemToReforge = player.getInventory().getItemInMainHand();
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this.config = config;
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int i = 0;
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for (Enchantment enchantment : Enchantment.values()) {
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enchantments[i++] = enchantment.getKey().toString();
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}
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}
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/**
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* Runs the actual re-forge which fixes the item and gives it back to the player
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*/
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@Override
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public void run() {
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player.sendMessage(reforgeItem() ? config.getSuccessMessage() : config.getFailMessage());
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//Stop the re-forged item from displaying in the blacksmith's hand
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if (npc.getEntity() instanceof Player) {
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((Player) npc.getEntity()).getInventory().setItemInMainHand(null);
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} else {
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Objects.requireNonNull(((LivingEntity) npc.getEntity()).getEquipment()).setItemInMainHand(null);
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}
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//Give the item back to the player
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if (!config.getDisableDelay()) {
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//If the player isn't online, drop the item to prevent it from disappearing
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if (config.getDropItem() || !player.isOnline()) {
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player.getWorld().dropItemNaturally(npc.getEntity().getLocation(), itemToReforge);
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} else {
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player.getInventory().addItem(itemToReforge);
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}
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} else {
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player.getInventory().setItemInMainHand(itemToReforge);
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}
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//Mark this blacksmith as available
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blacksmithTrait.unsetSession();
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// Start cool-down
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Calendar wait = Calendar.getInstance();
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wait.add(Calendar.SECOND, config.getReforgeCoolDown());
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blacksmithTrait.addCoolDown(player.getUniqueId(), wait);
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}
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/**
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* Performs the actual re-forge where the item's damage is reduced
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*
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* @return <p>Whether the re-forge was successful. False if the blacksmith failed to fully repair the item.</p>
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*/
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private boolean reforgeItem() {
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if (random.nextInt(100) < config.getFailChance()) {
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failReforge();
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return false;
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} else {
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succeedReforge();
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return true;
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}
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}
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/**
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* The method to run when a blacksmith successfully re-forges an item
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*/
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private void succeedReforge() {
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// Remove any damage done to the item
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updateDamage(itemToReforge, 0);
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// Add random enchantments
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int roll = random.nextInt(100);
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if (!(roll < config.getExtraEnchantmentChance() &&
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itemToReforge.getEnchantments().keySet().size() < config.getMaxEnchantments())) {
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// Abort if randomness isn't on our side, or if max enchantments has been reached
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return;
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}
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// Choose a random enchantment
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Enchantment enchantment;
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int maxRetries = 100;
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int retries = 0;
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do {
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// Try to find a working enchantment for the re-forged item up to maxRetries times
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enchantment = Enchantment.getByKey(NamespacedKey.fromString(enchantments[random.nextInt(enchantments.length)]));
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} while ((enchantment == null || !enchantment.canEnchantItem(itemToReforge)) && (retries++ < maxRetries));
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if (enchantment != null && enchantment.canEnchantItem(itemToReforge)) {
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int randomBound = enchantment.getMaxLevel() - enchantment.getStartLevel();
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//A workaround for the random method's bound sometimes being negative
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if (randomBound >= 0) {
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itemToReforge.addEnchantment(enchantment, random.nextInt(randomBound) + enchantment.getStartLevel());
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}
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}
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}
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/**
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* The method to run when a blacksmith fails re-forging an item
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*/
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private void failReforge() {
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// Remove or downgrade existing enchantments
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for (Enchantment enchantment : itemToReforge.getEnchantments().keySet()) {
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if (random.nextBoolean()) {
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itemToReforge.removeEnchantment(enchantment);
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} else {
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if (itemToReforge.getEnchantmentLevel(enchantment) > 1) {
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itemToReforge.removeEnchantment(enchantment);
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itemToReforge.addEnchantment(enchantment, 1);
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}
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}
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}
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// Damage the item
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short currentItemDurability = EconomyManager.getDurability(itemToReforge);
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short newDurability = (short) (currentItemDurability + (currentItemDurability * random.nextInt(8)));
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short maxDurability = itemToReforge.getType().getMaxDurability();
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if (newDurability <= 0) {
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newDurability = (short) (maxDurability / 3);
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} else if (currentItemDurability + newDurability > maxDurability) {
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newDurability = (short) (maxDurability - random.nextInt(maxDurability - 25));
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}
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updateDamage(itemToReforge, maxDurability - newDurability);
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}
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/**
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* Updates the damage done to an item
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*
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* @param item <p>The item to update damage for</p>
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* @param newDamage <p>The new damage done</p>
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*/
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private void updateDamage(ItemStack item, int newDamage) {
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ItemMeta meta = item.getItemMeta();
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Damageable damageable = (Damageable) meta;
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if (damageable != null) {
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damageable.setDamage(newDamage);
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} else {
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BlacksmithPlugin.getInstance().getLogger().log(Level.WARNING, "Unable to change damage of " + item);
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}
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item.setItemMeta(meta);
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}
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/**
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* Gets whether to end the current session
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*
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* <p>If the player has switched their item, or the player cannot pay, this returns true.</p>
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*
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* @return <p>True if the current session should end</p>
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*/
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public boolean endSession() {
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// Prevent player from switching items during session
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ItemStack itemInHand = player.getInventory().getItemInMainHand();
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if (!itemToReforge.equals(itemInHand)) {
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player.sendMessage(config.getItemChangedMessage());
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return true;
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}
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// The player is unable to pay
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if (!EconomyManager.canPay(player)) {
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player.sendMessage(config.getInsufficientFundsMessage());
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return true;
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}
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return false;
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}
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/**
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* Gets whether the current session is still running
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*
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* @return <p>True if the current session is still running</p>
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*/
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public boolean isRunning() {
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return BlacksmithPlugin.getInstance().getServer().getScheduler().isQueued(taskId);
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}
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/**
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* Gets whether the given player is currently in a re-forge session
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*
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* @param other <p>The player to check if is in session</p>
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* @return <p>True if the given player is in a re-forge session</p>
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*/
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public boolean isInSession(Player other) {
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return player.getName().equals(other.getName());
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}
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/**
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* Begins the actual item reforging
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*/
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public void beginReforge() {
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if (!config.getDisableCoolDown()) {
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//Finish the re-forge after a random delay between the max and min
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taskId = BlacksmithPlugin.getInstance().getServer().getScheduler().scheduleSyncDelayedTask(
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BlacksmithPlugin.getInstance(), this, (new Random().nextInt(config.getMaxReforgeDelay()) +
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config.getMinReforgeDelay()) * 20L);
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} else {
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//Finish the re-forge as soon as possible
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taskId = BlacksmithPlugin.getInstance().getServer().getScheduler().scheduleSyncDelayedTask(
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BlacksmithPlugin.getInstance(), this, 0);
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}
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}
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/**
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* Gets the player currently in this reforge session
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*
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* @return <p>The player currently in this reforge session</p>
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*/
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public Player getPlayer() {
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return player;
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}
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}
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Reference in New Issue
Block a user