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@@ -1,29 +1,36 @@
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package com.gmail.nossr50.util;
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+import com.gmail.nossr50.api.ItemSpawnReason;
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import com.gmail.nossr50.config.experience.ExperienceConfig;
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import com.gmail.nossr50.config.party.ItemWeightConfig;
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import com.gmail.nossr50.datatypes.treasure.EnchantmentWrapper;
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import com.gmail.nossr50.datatypes.treasure.FishingTreasureBook;
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+import com.gmail.nossr50.events.items.McMMOItemSpawnEvent;
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import com.gmail.nossr50.locale.LocaleLoader;
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import com.gmail.nossr50.mcMMO;
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import com.gmail.nossr50.skills.smelting.Smelting;
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import org.bukkit.ChatColor;
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+import org.bukkit.Location;
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import org.bukkit.Material;
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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.Item;
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import org.bukkit.entity.Player;
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import org.bukkit.inventory.FurnaceRecipe;
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import org.bukkit.inventory.ItemStack;
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import org.bukkit.inventory.Recipe;
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import org.bukkit.inventory.meta.EnchantmentStorageMeta;
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import org.bukkit.inventory.meta.ItemMeta;
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+import org.bukkit.util.Vector;
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import org.jetbrains.annotations.NotNull;
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import org.jetbrains.annotations.Nullable;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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+import java.util.Collection;
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import java.util.Collections;
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import java.util.List;
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+import java.util.function.Predicate;
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import static java.util.Objects.requireNonNull;
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@@ -787,4 +794,187 @@ public final class ItemUtils {
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int randomIndex = Misc.getRandom().nextInt(enchantmentWrappers.size());
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return enchantmentWrappers.get(randomIndex);
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}
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+
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+ /**
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+ * Spawn item if conditions are met.
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+ *
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+ * @param potentialItemSpawn The item to spawn if conditions are met
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+ * @param itemSpawnReason The reason for the item drop
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+ * @param spawnLocation The location to spawn the item at
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+ * @param predicate The predicate to test the item against
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+ * @param player The player to spawn the item for
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+ */
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+ public static void spawnItem(@NotNull ItemStack potentialItemSpawn,
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+ @NotNull ItemSpawnReason itemSpawnReason,
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+ @NotNull Location spawnLocation,
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+ @NotNull Predicate<String> predicate,
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+ @NotNull Player player) {
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+ if (predicate.test(potentialItemSpawn.getType().getKey().getKey())) {
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+ spawnItem(player, spawnLocation, potentialItemSpawn, itemSpawnReason);
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+ }
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+ }
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+
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+ /**
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+ * Drop items at a given location.
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+ *
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+ * @param location The location to drop the items at
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+ * @param is The items to drop
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+ * @param quantity The amount of items to drop
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+ */
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+ public static void spawnItems(@Nullable Player player, @NotNull Location location, @NotNull ItemStack is, int quantity, @NotNull ItemSpawnReason itemSpawnReason) {
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+ for (int i = 0; i < quantity; i++) {
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+ spawnItem(player, location, is, itemSpawnReason);
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+ }
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+ }
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+
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+ /**
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+ * Drop an item at a given location.
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+ *
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+ * @param location The location to drop the item at
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+ * @param itemStack The item to drop
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+ * @param itemSpawnReason the reason for the item drop
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+ * @return Dropped Item entity or null if invalid or cancelled
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+ */
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+ public static @Nullable Item spawnItem(@Nullable Player player, @NotNull Location location, @NotNull ItemStack itemStack, @NotNull ItemSpawnReason itemSpawnReason) {
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+ if (itemStack.getType() == Material.AIR || location.getWorld() == null) {
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+ return null;
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+ }
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+
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+ // We can't get the item until we spawn it and we want to make it cancellable, so we have a custom event.
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+ McMMOItemSpawnEvent event = new McMMOItemSpawnEvent(location, itemStack, itemSpawnReason, player);
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+ mcMMO.p.getServer().getPluginManager().callEvent(event);
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+
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+ if (event.isCancelled()) {
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+ return null;
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+ }
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+
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+ return location.getWorld().dropItem(location, itemStack);
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+ }
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+
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+ /**
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+ * Drop an item at a given location.
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+ *
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+ * @param location The location to drop the item at
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+ * @param itemStack The item to drop
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+ * @param itemSpawnReason the reason for the item drop
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+ * @return Dropped Item entity or null if invalid or cancelled
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+ */
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+ public static @Nullable Item spawnItemNaturally(@Nullable Player player, @NotNull Location location, @NotNull ItemStack itemStack, @NotNull ItemSpawnReason itemSpawnReason) {
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+ if (itemStack.getType() == Material.AIR || location.getWorld() == null) {
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+ return null;
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+ }
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+
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+ // We can't get the item until we spawn it and we want to make it cancellable, so we have a custom event.
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+ McMMOItemSpawnEvent event = new McMMOItemSpawnEvent(location, itemStack, itemSpawnReason, player);
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+ mcMMO.p.getServer().getPluginManager().callEvent(event);
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+
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+ if (event.isCancelled()) {
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+ return null;
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+ }
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+
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+ return location.getWorld().dropItemNaturally(location, itemStack);
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+ }
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+
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+ /**
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+ * Drop items at a given location.
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+ *
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+ * @param fromLocation The location to drop the items at
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+ * @param is The items to drop
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+ * @param speed the speed that the item should travel
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+ * @param quantity The amount of items to drop
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+ */
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+ public static void spawnItemsTowardsLocation(@Nullable Player player, @NotNull Location fromLocation, @NotNull Location toLocation, @NotNull ItemStack is, int quantity, double speed, @NotNull ItemSpawnReason itemSpawnReason) {
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+ for (int i = 0; i < quantity; i++) {
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+ spawnItemTowardsLocation(player, fromLocation, toLocation, is, speed, itemSpawnReason);
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+ }
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+ }
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+
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+ /**
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+ * Drop an item at a given location.
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+ * This method is fairly expensive as it creates clones of everything passed to itself since they are mutable objects
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+ *
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+ * @param fromLocation The location to drop the item at
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+ * @param toLocation The location the item will travel towards
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+ * @param itemToSpawn The item to spawn
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+ * @param speed the speed that the item should travel
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+ * @return Dropped Item entity or null if invalid or cancelled
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+ */
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+ public static @Nullable Item spawnItemTowardsLocation(@Nullable Player player, @NotNull Location fromLocation, @NotNull Location toLocation, @NotNull ItemStack itemToSpawn, double speed, @NotNull ItemSpawnReason itemSpawnReason) {
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+ if (itemToSpawn.getType() == Material.AIR) {
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+ return null;
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+ }
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+
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+ //Work with fresh copies of everything
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+ ItemStack clonedItem = itemToSpawn.clone();
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+ Location spawnLocation = fromLocation.clone();
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+ Location targetLocation = toLocation.clone();
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+
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+ if (spawnLocation.getWorld() == null)
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+ return null;
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+
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+ // We can't get the item until we spawn it and we want to make it cancellable, so we have a custom event.
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+ McMMOItemSpawnEvent event = new McMMOItemSpawnEvent(spawnLocation, clonedItem, itemSpawnReason, player);
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+ mcMMO.p.getServer().getPluginManager().callEvent(event);
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+
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+ //Something cancelled the event so back out
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+ if (event.isCancelled()) {
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+ return null;
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+ }
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+
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+ //Use the item from the event
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+ Item spawnedItem = spawnLocation.getWorld().dropItem(spawnLocation, clonedItem);
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+ Vector vecFrom = spawnLocation.clone().toVector().clone();
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+ Vector vecTo = targetLocation.clone().toVector().clone();
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+
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+ //Vector which is pointing towards out target location
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+ Vector direction = vecTo.subtract(vecFrom).normalize();
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+
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+ //Modify the speed of the vector
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+ direction = direction.multiply(speed);
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+ spawnedItem.setVelocity(direction);
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+ return spawnedItem;
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+ }
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+
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+ public static void spawnItemsFromCollection(@NotNull Player player, @NotNull Location location, @NotNull Collection<ItemStack> drops, @NotNull ItemSpawnReason itemSpawnReason) {
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+ for (ItemStack drop : drops) {
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+ spawnItem(player, location, drop, itemSpawnReason);
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+ }
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+ }
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+
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+ /**
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+ * Drops only the first n items in a collection
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+ * Size should always be a positive integer above 0
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+ *
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+ * @param location target drop location
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+ * @param drops collection to iterate over
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+ * @param sizeLimit the number of drops to process
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+ */
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+ public static void spawnItemsFromCollection(@Nullable Player player, @NotNull Location location, @NotNull Collection<ItemStack> drops, @NotNull ItemSpawnReason itemSpawnReason, int sizeLimit) {
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+ ItemStack[] arrayDrops = drops.toArray(new ItemStack[0]);
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+
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+ for(int i = 0; i < sizeLimit-1; i++) {
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+ spawnItem(player, location, arrayDrops[i], itemSpawnReason);
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+ }
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+ }
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+
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+ /**
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+ * Spawn items form a collection if conditions are met.
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+ * Each item is tested against the condition and spawned if it passes.
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+ *
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+ * @param potentialItemDrops The collection of items to iterate over, each one is tested and spawned if the
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+ * predicate is true
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+ * @param itemSpawnReason The reason for the item drop
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+ * @param spawnLocation The location to spawn the item at
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+ * @param predicate The predicate to test the item against
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+ * @param player The player to spawn the item for
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+ */
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+ public static void spawnItem(@NotNull Collection <ItemStack> potentialItemDrops,
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+ @NotNull ItemSpawnReason itemSpawnReason,
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+ @NotNull Location spawnLocation,
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+ @NotNull Predicate<String> predicate,
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+ @NotNull Player player) {
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+ for (ItemStack drop : potentialItemDrops) {
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+ spawnItem(drop, itemSpawnReason, spawnLocation, predicate, player);
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+ }
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+ }
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}
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nossr50