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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Mark Vainomaa <mikroskeem@mikroskeem.eu>
Date: Wed, 12 Sep 2018 18:53:35 +0300
Subject: [PATCH] Add an API for CanPlaceOn and CanDestroy NBT values
diff --git a/src/main/java/com/destroystokyo/paper/Namespaced.java b/src/main/java/com/destroystokyo/paper/Namespaced.java
new file mode 100644
index 0000000000000000000000000000000000000000..cd1a34b82870684e09e18c47169bd472ecbbb91f
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/Namespaced.java
@@ -0,0 +1,40 @@
+package com.destroystokyo.paper;
+
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Represents a namespaced resource, see {@link org.bukkit.NamespacedKey} for single elements
+ * or {@link com.destroystokyo.paper.NamespacedTag} for a collection of elements
+ *
+ * Namespaces may only contain lowercase alphanumeric characters, periods,
+ * underscores, and hyphens.
+ * <p>
+ * Keys may only contain lowercase alphanumeric characters, periods,
+ * underscores, hyphens, and forward slashes.
+ * <p>
+ * You should not be implementing this interface yourself, use {@link org.bukkit.NamespacedKey}
+ * or {@link com.destroystokyo.paper.NamespacedTag} as needed instead.
+ */
+public interface Namespaced {
+ /**
+ * Gets the namespace this resource is a part of
+ * <p>
+ * This is contractually obligated to only contain lowercase alphanumeric characters,
+ * periods, underscores, and hyphens.
+ *
+ * @return resource namespace
+ */
+ @NotNull
+ String getNamespace();
+
+ /**
+ * Gets the key corresponding to this resource
+ * <p>
+ * This is contractually obligated to only contain lowercase alphanumeric characters,
+ * periods, underscores, hyphens, and forward slashes.
+ *
+ * @return resource key
+ */
+ @NotNull
+ String getKey();
+}
diff --git a/src/main/java/com/destroystokyo/paper/NamespacedTag.java b/src/main/java/com/destroystokyo/paper/NamespacedTag.java
new file mode 100644
index 0000000000000000000000000000000000000000..28f3fda950999a9c964a3608042ca60567ae1d6a
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/NamespacedTag.java
@@ -0,0 +1,142 @@
+package com.destroystokyo.paper;
+
+import com.google.common.base.Preconditions;
+import java.util.Locale;
+import java.util.UUID;
+import java.util.regex.Pattern;
+import org.bukkit.plugin.Plugin;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Represents a String based key pertaining to a tagged entry. Consists of two components - a namespace
+ * and a key.
+ * <p>
+ * Namespaces may only contain lowercase alphanumeric characters, periods,
+ * underscores, and hyphens.
+ * <p>
+ * Keys may only contain lowercase alphanumeric characters, periods,
+ * underscores, hyphens, and forward slashes.
+ *
+ */
+// Paper - entire class, based on org.bukkit.NamespacedKey
+public final class NamespacedTag implements com.destroystokyo.paper.Namespaced {
+
+ /**
+ * The namespace representing all inbuilt keys.
+ */
+ public static final String MINECRAFT = "minecraft";
+ /**
+ * The namespace representing all keys generated by Bukkit for backwards
+ * compatibility measures.
+ */
+ public static final String BUKKIT = "bukkit";
+ //
+ private static final Pattern VALID_NAMESPACE = Pattern.compile("[a-z0-9._-]+");
+ private static final Pattern VALID_KEY = Pattern.compile("[a-z0-9/._-]+");
+ //
+ private final String namespace;
+ private final String key;
+
+ /**
+ * Create a key in a specific namespace.
+ *
+ * @param namespace String representing a grouping of keys
+ * @param key Name for this specific key
+ * @deprecated should never be used by plugins, for internal use only!!
+ */
+ @Deprecated
+ public NamespacedTag(@NotNull String namespace, @NotNull String key) {
+ Preconditions.checkArgument(namespace != null && VALID_NAMESPACE.matcher(namespace).matches(), "Invalid namespace. Must be [a-z0-9._-]: %s", namespace);
+ Preconditions.checkArgument(key != null && VALID_KEY.matcher(key).matches(), "Invalid key. Must be [a-z0-9/._-]: %s", key);
+
+ this.namespace = namespace;
+ this.key = key;
+
+ String string = toString();
+ Preconditions.checkArgument(string.length() < 256, "NamespacedTag must be less than 256 characters", string);
+ }
+
+ /**
+ * Create a key in the plugin's namespace.
+ * <p>
+ * Namespaces may only contain lowercase alphanumeric characters, periods,
+ * underscores, and hyphens.
+ * <p>
+ * Keys may only contain lowercase alphanumeric characters, periods,
+ * underscores, hyphens, and forward slashes.
+ *
+ * @param plugin the plugin to use for the namespace
+ * @param key the key to create
+ */
+ public NamespacedTag(@NotNull Plugin plugin, @NotNull String key) {
+ Preconditions.checkArgument(plugin != null, "Plugin cannot be null");
+ Preconditions.checkArgument(key != null, "Key cannot be null");
+
+ this.namespace = plugin.getName().toLowerCase(Locale.ROOT);
+ this.key = key.toLowerCase().toLowerCase(Locale.ROOT);
+
+ // Check validity after normalization
+ Preconditions.checkArgument(VALID_NAMESPACE.matcher(this.namespace).matches(), "Invalid namespace. Must be [a-z0-9._-]: %s", this.namespace);
+ Preconditions.checkArgument(VALID_KEY.matcher(this.key).matches(), "Invalid key. Must be [a-z0-9/._-]: %s", this.key);
+
+ String string = toString();
+ Preconditions.checkArgument(string.length() < 256, "NamespacedTag must be less than 256 characters (%s)", string);
+ }
+
+ @NotNull
+ public String getNamespace() {
+ return namespace;
+ }
+
+ @NotNull
+ public String getKey() {
+ return key;
+ }
+
+ @Override
+ public int hashCode() {
+ int hash = 7;
+ hash = 47 * hash + this.namespace.hashCode();
+ hash = 47 * hash + this.key.hashCode();
+ return hash;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (obj == null) {
+ return false;
+ }
+ if (getClass() != obj.getClass()) {
+ return false;
+ }
+ final NamespacedTag other = (NamespacedTag) obj;
+ return this.namespace.equals(other.namespace) && this.key.equals(other.key);
+ }
+
+ @Override
+ public String toString() {
+ return "#" + this.namespace + ":" + this.key;
+ }
+
+ /**
+ * Return a new random key in the {@link #BUKKIT} namespace.
+ *
+ * @return new key
+ * @deprecated should never be used by plugins, for internal use only!!
+ */
+ @Deprecated
+ public static NamespacedTag randomKey() {
+ return new NamespacedTag(BUKKIT, UUID.randomUUID().toString());
+ }
+
+ /**
+ * Get a key in the Minecraft namespace.
+ *
+ * @param key the key to use
+ * @return new key in the Minecraft namespace
+ */
+ @NotNull
+ public static NamespacedTag minecraft(@NotNull String key) {
+ return new NamespacedTag(MINECRAFT, key);
+ }
+}
diff --git a/src/main/java/org/bukkit/NamespacedKey.java b/src/main/java/org/bukkit/NamespacedKey.java
index c65f0d6569c130b4920a9e71ad24af6427f1f030..01bcb3a1bdb5accdf844d0178cec3d25746b3eaa 100644
--- a/src/main/java/org/bukkit/NamespacedKey.java
+++ b/src/main/java/org/bukkit/NamespacedKey.java
@@ -19,7 +19,7 @@ import org.jetbrains.annotations.Nullable;
* underscores, hyphens, and forward slashes.
*
*/
-public final class NamespacedKey implements net.kyori.adventure.key.Key { // Paper - implement Key
+public final class NamespacedKey implements net.kyori.adventure.key.Key, com.destroystokyo.paper.Namespaced { // Paper - implement Key and Namespaced
/**
* The namespace representing all inbuilt keys.
@@ -84,11 +84,13 @@ public final class NamespacedKey implements net.kyori.adventure.key.Key { // Pap
}
@NotNull
+ @Override // Paper
public String getNamespace() {
return namespace;
}
@NotNull
+ @Override // Paper
public String getKey() {
return key;
}
diff --git a/src/main/java/org/bukkit/inventory/meta/ItemMeta.java b/src/main/java/org/bukkit/inventory/meta/ItemMeta.java
index 69f68ca2d62c2cfe07a193776054c14c352a5942..45baebc97f0aec8abc9a894bc135e4767d7c9e35 100644
--- a/src/main/java/org/bukkit/inventory/meta/ItemMeta.java
+++ b/src/main/java/org/bukkit/inventory/meta/ItemMeta.java
@@ -444,4 +444,87 @@ public interface ItemMeta extends Cloneable, ConfigurationSerializable, Persiste
@SuppressWarnings("javadoc")
@NotNull
ItemMeta clone();
+
+ // Paper start - Add an API for CanPlaceOn and CanDestroy NBT values
+ /**
+ * Gets set of materials what given item can destroy in {@link org.bukkit.GameMode#ADVENTURE}
+ *
+ * @return Set of materials
+ * @deprecated Minecraft does not limit this to the material enum, Use {@link #getDestroyableKeys()} as a replacement
+ */
+ @Deprecated
+ Set<org.bukkit.Material> getCanDestroy();
+
+ /**
+ * Sets set of materials what given item can destroy in {@link org.bukkit.GameMode#ADVENTURE}
+ *
+ * @param canDestroy Set of materials
+ * @deprecated Minecraft does not limit this to the material enum, Use {@link #setDestroyableKeys(Collection)} as a replacement
+ */
+ @Deprecated
+ void setCanDestroy(Set<org.bukkit.Material> canDestroy);
+
+ /**
+ * Gets set of materials where given item can be placed on in {@link org.bukkit.GameMode#ADVENTURE}
+ *
+ * @return Set of materials
+ * @deprecated Minecraft does not limit this to the material enum, Use {@link #getPlaceableKeys()} as a replacement
+ */
+ @Deprecated
+ Set<org.bukkit.Material> getCanPlaceOn();
+
+ /**
+ * Sets set of materials where given item can be placed on in {@link org.bukkit.GameMode#ADVENTURE}
+ *
+ * @param canPlaceOn Set of materials
+ * @deprecated Minecraft does not limit this to the material enum, Use {@link #setPlaceableKeys(Collection)} as a replacement
+ */
+ @Deprecated
+ void setCanPlaceOn(Set<org.bukkit.Material> canPlaceOn);
+
+ /**
+ * Gets the collection of namespaced keys that the item can destroy in {@link org.bukkit.GameMode#ADVENTURE}
+ *
+ * @return Set of {@link com.destroystokyo.paper.Namespaced}
+ */
+ @NotNull
+ Set<com.destroystokyo.paper.Namespaced> getDestroyableKeys();
+
+ /**
+ * Sets the collection of namespaced keys that the item can destroy in {@link org.bukkit.GameMode#ADVENTURE}
+ *
+ * @param canDestroy Collection of {@link com.destroystokyo.paper.Namespaced}
+ */
+ void setDestroyableKeys(@NotNull Collection<com.destroystokyo.paper.Namespaced> canDestroy);
+
+ /**
+ * Gets the collection of namespaced keys that the item can be placed on in {@link org.bukkit.GameMode#ADVENTURE}
+ *
+ * @return Set of {@link com.destroystokyo.paper.Namespaced}
+ */
+ @NotNull
+ Set<com.destroystokyo.paper.Namespaced> getPlaceableKeys();
+
+ /**
+ * Sets the set of namespaced keys that the item can be placed on in {@link org.bukkit.GameMode#ADVENTURE}
+ *
+ * @param canPlaceOn Collection of {@link com.destroystokyo.paper.Namespaced}
+ */
+ @NotNull
+ void setPlaceableKeys(@NotNull Collection<com.destroystokyo.paper.Namespaced> canPlaceOn);
+
+ /**
+ * Checks for the existence of any keys that the item can be placed on
+ *
+ * @return true if this item has placeable keys
+ */
+ boolean hasPlaceableKeys();
+
+ /**
+ * Checks for the existence of any keys that the item can destroy
+ *
+ * @return true if this item has destroyable keys
+ */
+ boolean hasDestroyableKeys();
+ // Paper end
}
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