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Update tile entities for 1.16 (#880) 

Ended up being simpler than I thought
This commit is contained in:
Dan Mulloy 2020-06-28 17:02:22 -04:00
parent 658da31d46
commit b2f6a56843
No known key found for this signature in database
GPG Key ID: 2B62F7DACFF133E8
4 changed files with 148 additions and 96 deletions
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17
src/main/java/com/comphenix/protocol/wrappers/WrappedBlockData.java
View File

@ -34,6 +34,8 @@ import org.bukkit.Material;
*/
public abstract class WrappedBlockData extends AbstractWrapper implements ClonableWrapper {
private static final boolean FLATTENED = MinecraftVersion.AQUATIC_UPDATE.atOrAbove();
private static final Class<?> MAGIC_NUMBERS = MinecraftReflection.getCraftBukkitClass("util.CraftMagicNumbers");
private static final Class<?> IBLOCK_DATA = MinecraftReflection.getIBlockDataClass();
private static final Class<?> BLOCK = MinecraftReflection.getBlockClass();
@ -48,7 +50,7 @@ public abstract class WrappedBlockData extends AbstractWrapper implements Clonab
private static MethodAccessor GET_HANDLE;
static {
if (MinecraftVersion.atOrAbove(MinecraftVersion.AQUATIC_UPDATE)) {
if (FLATTENED) {
FuzzyReflection fuzzy = FuzzyReflection.fromClass(MAGIC_NUMBERS);
FuzzyMethodContract contract = FuzzyMethodContract
.newBuilder()
@ -168,7 +170,7 @@ public abstract class WrappedBlockData extends AbstractWrapper implements Clonab
private static MethodAccessor GET_BLOCK;
static {
if (!MinecraftVersion.atOrAbove(MinecraftVersion.AQUATIC_UPDATE)) {
if (!FLATTENED) {
FuzzyReflection fuzzy = FuzzyReflection.fromClass(BLOCK);
FuzzyMethodContract contract = FuzzyMethodContract
.newBuilder()
@ -289,8 +291,7 @@ public abstract class WrappedBlockData extends AbstractWrapper implements Clonab
* @return New BlockData
*/
public static WrappedBlockData createData(Material type) {
return MinecraftVersion.atOrAbove(MinecraftVersion.AQUATIC_UPDATE) ? NewBlockData.createNewData(type)
: OldBlockData.createOldData(type);
return FLATTENED ? NewBlockData.createNewData(type) : OldBlockData.createOldData(type);
}
/**
@ -298,17 +299,13 @@ public abstract class WrappedBlockData extends AbstractWrapper implements Clonab
* @param type Block type
* @param data Block data
* @return New BlockData
* @deprecated The flattening
*/
@Deprecated
public static WrappedBlockData createData(Material type, int data) {
return MinecraftVersion.atOrAbove(MinecraftVersion.AQUATIC_UPDATE) ? NewBlockData.createNewData(type, data)
: OldBlockData.createOldData(type, data);
return FLATTENED ? NewBlockData.createNewData(type, data) : OldBlockData.createOldData(type, data);
}
public static WrappedBlockData fromHandle(Object handle) {
return MinecraftVersion.atOrAbove(MinecraftVersion.AQUATIC_UPDATE) ? new NewBlockData(handle)
: new OldBlockData(handle);
return FLATTENED ? new NewBlockData(handle) : new OldBlockData(handle);
}
/**

186
src/main/java/com/comphenix/protocol/wrappers/nbt/NbtFactory.java
View File

@ -47,20 +47,22 @@ import org.bukkit.inventory.ItemStack;
/**
* Factory methods for creating NBT elements, lists and compounds.
*
*
* @author Kristian
*/
@SuppressWarnings({"unchecked", "rawtypes"})
public class NbtFactory {
private static final Map<NbtType, Constructor<?>> CONSTRUCTORS = new ConcurrentHashMap<>();
// Used to create the underlying tag
private static Method methodCreateTag;
private static boolean methodCreateWithName;
// Item stack trickery
private static StructureModifier<Object> itemStackModifier;
private static Method getTagType;
/**
* Attempt to cast this NBT tag as a compund.
*
* @param tag - the NBT tag to cast.
* @return This instance as a compound.
* @throws UnsupportedOperationException If this is not a compound.
@ -74,9 +76,10 @@ public class NbtFactory {
else
throw new IllegalArgumentException("Tag cannot be NULL.");
}
/**
* Attempt to cast this NBT tag as a list.
*
* @param tag - the NBT tag to cast.
* @return This instance as a list.
* @throws UnsupportedOperationException If this is not a list.
@ -90,12 +93,12 @@ public class NbtFactory {
else
throw new IllegalArgumentException("Tag cannot be NULL.");
}
/**
* Get a NBT wrapper from a NBT base.
* <p>
* This may clone the content if the NbtBase is not a NbtWrapper.
*
*
* @param <T> Type
* @param base - the base class.
* @return A NBT wrapper.
@ -109,43 +112,44 @@ public class NbtFactory {
// Load into a NBT-backed wrapper
WrappedCompound copy = WrappedCompound.fromName(base.getName());
T value = base.getValue();
copy.setValue((Map<String, NbtBase<?>>) value);
return (NbtWrapper<T>) copy;
} else if (base.getType() == NbtType.TAG_LIST) {
// As above
NbtList<T> copy = WrappedList.fromName(base.getName());
copy.setValue((List<NbtBase<T>>) base.getValue());
return (NbtWrapper<T>) copy;
} else {
// Copy directly
NbtWrapper<T> copy = ofWrapper(base.getType(), base.getName());
copy.setValue(base.getValue());
return copy;
}
}
}
/**
* Set the NBT compound tag of a given item stack.
* <p>
* The item stack must be a wrapper for a CraftItemStack. Use
* {@link MinecraftReflection#getBukkitItemStack(Object)} if not.
*
* @param stack - the item stack, cannot be air.
* @param compound - the new NBT compound, or NULL to remove it.
* @throws IllegalArgumentException If the stack is not a CraftItemStack, or it represents air.
*/
public static void setItemTag(ItemStack stack, NbtCompound compound) {
checkItemStack(stack);
StructureModifier<NbtBase<?>> modifier = getStackModifier(stack);
modifier.write(0, compound);
}
/**
* Construct a wrapper for an NBT tag stored (in memory) in an item stack. This is where
* auxillary data such as enchanting, name and lore is stored. It doesn't include the items
@ -153,15 +157,16 @@ public class NbtFactory {
* <p>
* The item stack must be a wrapper for a CraftItemStack. Use
* {@link MinecraftReflection#getBukkitItemStack(Object)} if not.
*
* @param stack - the item stack.
* @return A wrapper for its NBT tag.
*/
public static NbtWrapper<?> fromItemTag(ItemStack stack) {
checkItemStack(stack);
StructureModifier<NbtBase<?>> modifier = getStackModifier(stack);
NbtBase<?> result = modifier.read(0);
// Create the tag if it doesn't exist
if (result == null) {
result = NbtFactory.ofCompound("tag");
@ -194,9 +199,10 @@ public class NbtFactory {
return Optional.of(fromBase(result));
}
/**
* Load a NBT compound from a GZIP compressed file.
*
* @param file - the source file.
* @return The compound.
* @throws IOException Unable to load file.
@ -209,9 +215,10 @@ public class NbtFactory {
return NbtBinarySerializer.DEFAULT.deserializeCompound(input);
}
}
/**
* Save a NBT compound to a new compressed file, overwriting any existing files in the process.
*
* @param compound - the compound to save.
* @param file - the destination file.
* @throws IOException Unable to save compound.
@ -225,38 +232,41 @@ public class NbtFactory {
NbtBinarySerializer.DEFAULT.serialize(compound, output);
}
}
/**
* Retrieve the NBT tile entity that represents the given block.
*
* @param block - the block.
* @return The NBT compound, or NULL if the state doesn't have a tile entity.
*/
public static NbtCompound readBlockState(Block block) {
BlockState state = block.getState();
TileEntityAccessor<BlockState> accessor = TileEntityAccessor.getAccessor(state);
return accessor != null ? accessor.readBlockState(state) : null;
BlockState state = block.getState();
TileEntityAccessor<BlockState> accessor = TileEntityAccessor.getAccessor(state);
return accessor != null ? accessor.readBlockState(state) : null;
}
/**
* Write to the NBT tile entity in the given block.
*
* @param target - the target block.
* @param blockState - the new tile entity.
* @throws IllegalArgumentException If the block doesn't contain a tile entity.
*/
public static void writeBlockState(Block target, NbtCompound blockState) {
BlockState state = target.getState();
TileEntityAccessor<BlockState> accessor = TileEntityAccessor.getAccessor(state);
if (accessor != null) {
accessor.writeBlockState(state, blockState);
} else {
throw new IllegalArgumentException("Unable to find tile entity in " + target);
}
BlockState state = target.getState();
TileEntityAccessor<BlockState> accessor = TileEntityAccessor.getAccessor(state);
if (accessor != null) {
accessor.writeBlockState(state, blockState);
} else {
throw new IllegalArgumentException("Unable to find tile entity in " + target);
}
}
/**
* Ensure that the given stack can store arbitrary NBT information.
*
* @param stack - the stack to check.
*/
private static void checkItemStack(ItemStack stack) {
@ -267,30 +277,31 @@ public class NbtFactory {
if (stack.getType() == Material.AIR)
throw new IllegalArgumentException("ItemStacks representing air cannot store NMS information.");
}
/**
* Retrieve a structure modifier that automatically marshalls between NBT wrappers and their NMS counterpart.
*
* @param stack - the stack that will store the NBT compound.
* @return The structure modifier.
*/
private static StructureModifier<NbtBase<?>> getStackModifier(ItemStack stack) {
Object nmsStack = MinecraftReflection.getMinecraftItemStack(stack);
if (itemStackModifier == null) {
itemStackModifier = new StructureModifier<>(nmsStack.getClass(), Object.class, false);
}
// Use the first and best NBT tag
return itemStackModifier.
withTarget(nmsStack).
withType(MinecraftReflection.getNBTBaseClass(),
BukkitConverters.getNbtConverter());
withType(MinecraftReflection.getNBTBaseClass(), BukkitConverters.getNbtConverter());
}
/**
* Initialize a NBT wrapper.
* <p>
* Use {@link #fromNMS(Object, String)} instead.
*
* @param <T> Type
* @param handle - the underlying net.minecraft.server object to wrap.
* @return A NBT wrapper.
@ -298,7 +309,7 @@ public class NbtFactory {
@Deprecated
public static <T> NbtWrapper<T> fromNMS(Object handle) {
WrappedElement<T> partial = new WrappedElement<>(handle);
// See if this is actually a compound tag
if (partial.getType() == NbtType.TAG_COMPOUND)
return (NbtWrapper<T>) new WrappedCompound(handle);
@ -307,9 +318,10 @@ public class NbtFactory {
else
return partial;
}
/**
* Initialize a NBT wrapper with a name.
*
* @param <T> Type
* @param name - the name of the tag, or NULL if not valid.
* @param handle - the underlying net.minecraft.server object to wrap.
@ -317,7 +329,7 @@ public class NbtFactory {
*/
public static <T> NbtWrapper<T> fromNMS(Object handle, String name) {
WrappedElement<T> partial = new WrappedElement<>(handle, name);
// See if this is actually a compound tag
if (partial.getType() == NbtType.TAG_COMPOUND)
return (NbtWrapper<T>) new WrappedCompound(handle, name);
@ -326,9 +338,10 @@ public class NbtFactory {
else
return partial;
}
/**
* Retrieve the NBT compound from a given NMS handle.
*
* @param handle - the underlying net.minecraft.server object to wrap.
* @return A NBT compound wrapper
*/
@ -337,9 +350,10 @@ public class NbtFactory {
throw new IllegalArgumentException("handle cannot be NULL.");
return (NbtCompound) NbtFactory.<Map<String, NbtBase<?>>>fromNMS(handle);
}
/**
* Constructs a NBT tag of type string.
*
* @param name - name of the tag.
* @param value - value of the tag.
* @return The constructed NBT tag.
@ -347,9 +361,10 @@ public class NbtFactory {
public static NbtBase<String> of(String name, String value) {
return ofWrapper(NbtType.TAG_STRING, name, value);
}
/**
* Constructs a NBT tag of type byte.
*
* @param name - name of the tag.
* @param value - value of the tag.
* @return The constructed NBT tag.
@ -357,9 +372,10 @@ public class NbtFactory {
public static NbtBase<Byte> of(String name, byte value) {
return ofWrapper(NbtType.TAG_BYTE, name, value);
}
/**
* Constructs a NBT tag of type short.
*
* @param name - name of the tag.
* @param value - value of the tag.
* @return The constructed NBT tag.
@ -367,9 +383,10 @@ public class NbtFactory {
public static NbtBase<Short> of(String name, short value) {
return ofWrapper(NbtType.TAG_SHORT, name, value);
}
/**
* Constructs a NBT tag of type int.
*
* @param name - name of the tag.
* @param value - value of the tag.
* @return The constructed NBT tag.
@ -377,9 +394,10 @@ public class NbtFactory {
public static NbtBase<Integer> of(String name, int value) {
return ofWrapper(NbtType.TAG_INT, name, value);
}
/**
* Constructs a NBT tag of type long.
*
* @param name - name of the tag.
* @param value - value of the tag.
* @return The constructed NBT tag.
@ -387,9 +405,10 @@ public class NbtFactory {
public static NbtBase<Long> of(String name, long value) {
return ofWrapper(NbtType.TAG_LONG, name, value);
}
/**
* Constructs a NBT tag of type float.
*
* @param name - name of the tag.
* @param value - value of the tag.
* @return The constructed NBT tag.
@ -397,9 +416,10 @@ public class NbtFactory {
public static NbtBase<Float> of(String name, float value) {
return ofWrapper(NbtType.TAG_FLOAT, name, value);
}
/**
* Constructs a NBT tag of type double.
*
* @param name - name of the tag.
* @param value - value of the tag.
* @return The constructed NBT tag.
@ -407,9 +427,10 @@ public class NbtFactory {
public static NbtBase<Double> of(String name, double value) {
return ofWrapper(NbtType.TAG_DOUBLE, name, value);
}
/**
* Constructs a NBT tag of type byte array.
*
* @param name - name of the tag.
* @param value - value of the tag.
* @return The constructed NBT tag.
@ -417,9 +438,10 @@ public class NbtFactory {
public static NbtBase<byte[]> of(String name, byte[] value) {
return ofWrapper(NbtType.TAG_BYTE_ARRAY, name, value);
}
/**
* Constructs a NBT tag of type int array.
*
* @param name - name of the tag.
* @param value - value of the tag.
* @return The constructed NBT tag.
@ -427,9 +449,10 @@ public class NbtFactory {
public static NbtBase<int[]> of(String name, int[] value) {
return ofWrapper(NbtType.TAG_INT_ARRAY, name, value);
}
/**
* Construct a new NBT compound initialized with a given list of NBT values.
*
* @param name - the name of the compound wrapper.
* @param list - the list of elements to add.
* @return The new wrapped NBT compound.
@ -437,18 +460,20 @@ public class NbtFactory {
public static NbtCompound ofCompound(String name, Collection<? extends NbtBase<?>> list) {
return WrappedCompound.fromList(name, list);
}
/**
* Construct a new NBT compound wrapper.
*
* @param name - the name of the compound wrapper.
* @return The new wrapped NBT compound.
*/
public static NbtCompound ofCompound(String name) {
return WrappedCompound.fromName(name);
}
/**
* Construct a NBT list of out an array of values.
*
* @param <T> Type
* @param name - name of this list.
* @param elements - elements to add.
@ -458,9 +483,10 @@ public class NbtFactory {
public static <T> NbtList<T> ofList(String name, T... elements) {
return WrappedList.fromArray(name, elements);
}
/**
* Construct a NBT list of out a list of values.
*
* @param <T> Type
* @param name - name of this list.
* @param elements - elements to add.
@ -469,9 +495,10 @@ public class NbtFactory {
public static <T> NbtList<T> ofList(String name, Collection<? extends T> elements) {
return WrappedList.fromList(name, elements);
}
/**
* Create a new NBT wrapper from a given type.
*
* @param <T> Type
* @param type - the NBT type.
* @param name - the name of the NBT tag.
@ -487,38 +514,37 @@ public class NbtFactory {
if (MinecraftVersion.BEE_UPDATE.atOrAbove()) {
return createTagNew(type, name);
}
if (methodCreateTag == null) {
Class<?> base = MinecraftReflection.getNBTBaseClass();
// Use the base class
try {
methodCreateTag = findCreateMethod(base, byte.class, String.class);
methodCreateWithName = true;
} catch (Exception e) {
methodCreateTag = findCreateMethod(base, byte.class);
methodCreateWithName = false;
}
}
try {
// Delegate to the correct version
if (methodCreateWithName)
return createTagWithName(type, name);
else
return createTagSetName(type, name);
} catch (Exception e) {
// Inform the caller
throw new FieldAccessException(
String.format("Cannot create NBT element %s (type: %s)", name, type),
e);
throw new FieldAccessException(String.format("Cannot create NBT element %s (type: %s)", name, type), e);
}
}
/**
* Find the create method of NBTBase.
*
* @param base - the base NBT.
* @param params - the parameters.
*/
@ -532,7 +558,7 @@ public class NbtFactory {
@SuppressWarnings({"unchecked", "rawtypes"})
private static <T> NbtWrapper<T> createTagWithName(NbtType type, String name) throws Exception {
Object handle = methodCreateTag.invoke(null, (byte) type.getRawID(), name);
if (type == NbtType.TAG_COMPOUND)
return (NbtWrapper<T>) new WrappedCompound(handle);
else if (type == NbtType.TAG_LIST)
@ -540,12 +566,12 @@ public class NbtFactory {
else
return new WrappedElement<>(handle);
}
// For Minecraft 1.7.2 to 1.14.4
@SuppressWarnings({"unchecked", "rawtypes"})
private static <T> NbtWrapper<T> createTagSetName(NbtType type, String name) throws Exception {
Object handle = methodCreateTag.invoke(null, (byte) type.getRawID());
if (type == NbtType.TAG_COMPOUND)
return (NbtWrapper<T>) new WrappedCompound(handle, name);
else if (type == NbtType.TAG_LIST)
@ -554,9 +580,6 @@ public class NbtFactory {
return new WrappedElement<>(handle, name);
}
private static Method getTagType;
private static final Map<NbtType, Constructor<?>> CONSTRUCTORS = new ConcurrentHashMap<>();
@SafeVarargs
private static <T> NbtWrapper<T> createTagNew(NbtType type, String name, T... values) {
if (type == NbtType.TAG_END) {
@ -571,7 +594,8 @@ public class NbtFactory {
if (getTagType == null) {
Class<?> tagTypes = MinecraftReflection.getMinecraftClass("NBTTagTypes");
FuzzyReflection fuzzy = FuzzyReflection.fromClass(tagTypes, false);
getTagType = fuzzy.getMethod(FuzzyMethodContract.newBuilder().parameterCount(1).parameterExactType(int.class).build());
getTagType = fuzzy.getMethod(
FuzzyMethodContract.newBuilder().parameterCount(1).parameterExactType(int.class).build());
}
Class<?> nbtClass;
@ -585,14 +609,10 @@ public class NbtFactory {
try {
FuzzyReflection fuzzy = FuzzyReflection.fromClass(nbtClass, true);
if (type == NbtType.TAG_LIST) {
constructor = fuzzy.getConstructor(FuzzyMethodContract.newBuilder()
.parameterCount(0)
.build());
constructor = fuzzy.getConstructor(FuzzyMethodContract.newBuilder().parameterCount(0).build());
} else {
constructor = fuzzy.getConstructor(FuzzyMethodContract.newBuilder()
.parameterCount(1)
.parameterSuperOf(valueType)
.build());
constructor = fuzzy.getConstructor(
FuzzyMethodContract.newBuilder().parameterCount(1).parameterSuperOf(valueType).build());
}
constructor.setAccessible(true);
@ -627,6 +647,7 @@ public class NbtFactory {
/**
* Create a new NBT wrapper from a given type.
*
* @param <T> Type
* @param type - the NBT type.
* @param name - the name of the NBT tag.
@ -640,20 +661,21 @@ public class NbtFactory {
}
NbtWrapper<T> created = ofWrapper(type, name);
// Update the value
created.setValue(value);
return created;
}
/**
* Create a new NBT wrapper from a given type.
*
* @param <T> Type
* @param type - type of the NBT value.
* @param name - the name of the NBT tag.
* @param value - the value of the new tag.
* @return The new wrapped NBT tag.
* @throws FieldAccessException If we're unable to create the underlying tag.
* @throws FieldAccessException If we're unable to create the underlying tag.
* @throws IllegalArgumentException If the given class type is not valid NBT.
*/
public static <T> NbtWrapper<T> ofWrapper(Class<?> type, String name, T value) {

39
src/main/java/com/comphenix/protocol/wrappers/nbt/TileEntityAccessor.java
View File

@ -2,14 +2,18 @@ package com.comphenix.protocol.wrappers.nbt;
import java.io.IOException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.concurrent.ConcurrentMap;
import com.comphenix.protocol.injector.BukkitUnwrapper;
import com.comphenix.protocol.reflect.FuzzyReflection;
import com.comphenix.protocol.reflect.accessors.Accessors;
import com.comphenix.protocol.reflect.accessors.FieldAccessor;
import com.comphenix.protocol.reflect.accessors.MethodAccessor;
import com.comphenix.protocol.reflect.fuzzy.FuzzyMethodContract;
import com.comphenix.protocol.utility.EnhancerFactory;
import com.comphenix.protocol.utility.MinecraftReflection;
import com.comphenix.protocol.utility.MinecraftVersion;
import com.google.common.collect.Maps;
import net.sf.cglib.asm.$ClassReader;
@ -27,8 +31,10 @@ import org.bukkit.block.BlockState;
* @author Kristian
*/
class TileEntityAccessor<T extends BlockState> {
private static final boolean BLOCK_DATA_INCL = MinecraftVersion.NETHER_UPDATE.atOrAbove();
/**
* Token indicating that the given block state doesn't contany any tile entities.
* Token indicating that the given block state doesn't contain any tile entities.
*/
private static final TileEntityAccessor<BlockState> EMPTY_ACCESSOR = new TileEntityAccessor<BlockState>();
@ -63,6 +69,28 @@ class TileEntityAccessor<T extends BlockState> {
}
void findMethods(Class<?> type, T state) {
if (BLOCK_DATA_INCL) {
Class<?> tileEntityClass = MinecraftReflection.getTileEntityClass();
Class<?> iBlockData = MinecraftReflection.getIBlockDataClass();
Class<?> nbtCompound = MinecraftReflection.getNBTCompoundClass();
FuzzyReflection fuzzy = FuzzyReflection.fromClass(tileEntityClass, false);
writeCompound = Accessors.getMethodAccessor(fuzzy.getMethod(
FuzzyMethodContract.newBuilder()
.banModifier(Modifier.STATIC)
.returnTypeVoid()
.parameterExactArray(iBlockData, nbtCompound)
.build()));
// this'll point to 2 methods, one of which points to the other
readCompound = Accessors.getMethodAccessor(fuzzy.getMethod(
FuzzyMethodContract.newBuilder()
.banModifier(Modifier.STATIC)
.returnTypeExact(nbtCompound)
.parameterExactArray(nbtCompound)
.build()));
}
// Possible read/write methods
try {
findMethodsUsingASM();
@ -185,7 +213,7 @@ class TileEntityAccessor<T extends BlockState> {
}
/**
* Retrieve the JAR name (slash instead of dots) of the given clas.
* Retrieve the JAR name (slash instead of dots) of the given class.
* @param clazz - the class.
* @return The JAR name.
*/
@ -216,7 +244,12 @@ class TileEntityAccessor<T extends BlockState> {
Object tileEntity = tileEntityField.get(state);
// Ensure the block state is set to the compound
readCompound.invoke(tileEntity, NbtFactory.fromBase(compound).getHandle());
if (BLOCK_DATA_INCL) {
Object blockData = BukkitUnwrapper.getInstance().unwrapItem(state);
readCompound.invoke(tileEntity, blockData, NbtFactory.fromBase(compound).getHandle());
} else {
readCompound.invoke(tileEntity, NbtFactory.fromBase(compound).getHandle());
}
}
/**

2
src/test/java/com/comphenix/protocol/wrappers/nbt/TileEntityTest.java
View File

@ -32,7 +32,7 @@ public class TileEntityTest {
BukkitInitialization.initializePackage();
}
// @Test
@Test
public void test() {
// Ensure the read and write methods exist
TileEntityAccessor<BlockState> accessor = new TileEntityAccessor<>();