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https://github.com/dmulloy2/ProtocolLib.git
synced 2024-11-05 10:20:24 +01:00
Add wrapped block position, fix some errors
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1f6b873f84
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38cf8f4888
@ -423,7 +423,8 @@ public class MinecraftReflection {
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*/
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@Deprecated
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public static boolean isChunkPosition(Object obj) {
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return obj != null && getChunkPositionClass().isAssignableFrom(obj.getClass());
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Class<?> chunkPosition = getChunkPositionClass();
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return obj != null && chunkPosition != null && chunkPosition.isAssignableFrom(obj.getClass());
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}
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/**
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@ -447,10 +448,13 @@ public class MinecraftReflection {
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/**
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* Determine if a given object is a ChunkCoordinate.
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* @param obj - the object to test.
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* @deprecated ChunkCoordinate(s) does not exist.
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* @return TRUE if it can, FALSE otherwise.
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*/
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@Deprecated
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public static boolean isChunkCoordinates(Object obj) {
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return obj != null && getChunkCoordinatesClass().isAssignableFrom(obj.getClass());
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Class<?> chunkCoordinates = getChunkCoordinatesClass();
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return obj != null && chunkCoordinates != null && chunkCoordinates.isAssignableFrom(obj.getClass());
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}
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/**
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@ -1188,7 +1192,7 @@ public class MinecraftReflection {
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try {
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return getMinecraftClass("ChunkPosition");
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} catch (RuntimeException e) {
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return getBlockPositionClass();
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return null;
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// Class<?> normalChunkGenerator = getCraftBukkitClass("generator.NormalChunkGenerator");
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//
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// // ChunkPosition a(net.minecraft.server.World world, String string, int i, int i1, int i2) {
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@ -1233,6 +1237,7 @@ public class MinecraftReflection {
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* Retrieve the ChunkCoordinates class.
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* @return The ChunkPosition class.
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*/
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@Deprecated
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public static Class<?> getChunkCoordinatesClass() {
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try {
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return getMinecraftClass("ChunkCoordinates");
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@ -0,0 +1,230 @@
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/**
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* ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
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* Copyright (C) 2012 Kristian S. Stangeland
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with this program;
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* if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*/
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package com.comphenix.protocol.wrappers;
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import java.lang.reflect.Constructor;
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import org.bukkit.util.Vector;
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import com.comphenix.protocol.reflect.EquivalentConverter;
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import com.comphenix.protocol.reflect.FieldAccessException;
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import com.comphenix.protocol.reflect.StructureModifier;
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import com.comphenix.protocol.utility.MinecraftReflection;
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import com.google.common.base.Objects;
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/**
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* Copies a immutable net.minecraft.server.BlockPosition, which represents a integer 3D vector.
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*
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* @author dmulloy2
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*/
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public class BlockPosition {
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/**
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* Represents the null (0, 0, 0) origin.
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*/
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public static BlockPosition ORIGIN = new BlockPosition(0, 0, 0);
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private static Constructor<?> blockPositionConstructor;
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// Use protected members, like Bukkit
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protected final int x;
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protected final int y;
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protected final int z;
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// Used to access a BlockPosition, in case it's names are changed
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private static StructureModifier<Integer> intModifier;
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/**
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* Construct an immutable 3D vector.
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*/
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public BlockPosition(int x, int y, int z) {
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this.x = x;
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this.y = y;
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this.z = z;
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}
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/**
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* Construct an immutable integer 3D vector from a mutable Bukkit vector.
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* @param vector - the mutable real Bukkit vector to copy.
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*/
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public BlockPosition(Vector vector) {
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if (vector == null)
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throw new IllegalArgumentException("Vector cannot be NULL.");
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this.x = vector.getBlockX();
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this.y = vector.getBlockY();
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this.z = vector.getBlockZ();
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}
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/**
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* Convert this instance to an equivalent real 3D vector.
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* @return Real 3D vector.
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*/
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public Vector toVector() {
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return new Vector(x, y, z);
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}
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/**
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* Retrieve the x-coordinate.
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* @return X coordinate.
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*/
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public int getX() {
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return x;
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}
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/**
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* Retrieve the y-coordinate.
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* @return Y coordinate.
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*/
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public int getY() {
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return y;
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}
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/**
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* Retrieve the z-coordinate.
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* @return Z coordinate.
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*/
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public int getZ() {
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return z;
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}
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/**
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* Adds the current position and a given position together, producing a result position.
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* @param other - the other position.
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* @return The new result position.
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*/
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public BlockPosition add(BlockPosition other) {
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if (other == null)
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throw new IllegalArgumentException("other cannot be NULL");
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return new BlockPosition(x + other.x, y + other.y, z + other.z);
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}
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/**
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* Adds the current position and a given position together, producing a result position.
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* @param other - the other position.
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* @return The new result position.
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*/
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public BlockPosition subtract(BlockPosition other) {
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if (other == null)
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throw new IllegalArgumentException("other cannot be NULL");
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return new BlockPosition(x - other.x, y - other.y, z - other.z);
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}
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/**
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* Multiply each dimension in the current position by the given factor.
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* @param factor - multiplier.
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* @return The new result.
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*/
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public BlockPosition multiply(int factor) {
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return new BlockPosition(x * factor, y * factor, z * factor);
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}
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/**
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* Divide each dimension in the current position by the given divisor.
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* @param divisor - the divisor.
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* @return The new result.
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*/
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public BlockPosition divide(int divisor) {
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if (divisor == 0)
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throw new IllegalArgumentException("Cannot divide by null.");
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return new BlockPosition(x / divisor, y / divisor, z / divisor);
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}
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/**
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* Used to convert between NMS ChunkPosition and the wrapper instance.
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* @return A new converter.
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*/
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public static EquivalentConverter<BlockPosition> getConverter() {
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return new EquivalentConverter<BlockPosition>() {
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@Override
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public Object getGeneric(Class<?> genericType, BlockPosition specific) {
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if (blockPositionConstructor == null) {
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try {
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blockPositionConstructor = MinecraftReflection.getBlockPositionClass().
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getConstructor(int.class, int.class, int.class);
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} catch (Exception e) {
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throw new RuntimeException("Cannot find block position constructor.", e);
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}
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}
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// Construct the underlying BlockPosition
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try {
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Object result = blockPositionConstructor.newInstance(specific.x, specific.y, specific.z);
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return result;
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} catch (Exception e) {
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throw new RuntimeException("Cannot construct BlockPosition.", e);
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}
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}
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@Override
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public BlockPosition getSpecific(Object generic) {
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if (MinecraftReflection.isBlockPosition(generic)) {
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// Use a structure modifier
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intModifier = new StructureModifier<Object>(generic.getClass(), null, false).withType(int.class);
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// Damn it all
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if (intModifier.size() < 3) {
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throw new IllegalStateException("Cannot read class " + generic.getClass() + " for its integer fields.");
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}
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if (intModifier.size() >= 3) {
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try {
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StructureModifier<Integer> instance = intModifier.withTarget(generic);
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BlockPosition result = new BlockPosition(instance.read(0), instance.read(1), instance.read(2));
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return result;
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} catch (FieldAccessException e) {
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// This is an exeptional work-around, so we don't want to burden the caller with the messy details
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throw new RuntimeException("Field access error.", e);
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}
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}
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}
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// Otherwise, return NULL
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return null;
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}
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// Thanks Java Generics!
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@Override
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public Class<BlockPosition> getSpecificType() {
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return BlockPosition.class;
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}
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};
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}
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@Override
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public boolean equals(Object obj) {
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// Fast checks
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if (this == obj) return true;
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if (obj == null) return false;
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// Only compare objects of similar type
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if (obj instanceof BlockPosition) {
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BlockPosition other = (BlockPosition) obj;
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return x == other.x && y == other.y && z == other.z;
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}
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return false;
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}
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@Override
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public int hashCode() {
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return Objects.hashCode(x, y, z);
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}
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@Override
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public String toString() {
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return "BlockPosition [x=" + x + ", y=" + y + ", z=" + z + "]";
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}
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}
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@ -353,6 +353,8 @@ public class WrappedWatchableObject extends AbstractWrapper {
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static Class<?> getWrappedType(Class<?> unwrapped) {
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if (unwrapped.equals(MinecraftReflection.getChunkPositionClass()))
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return ChunkPosition.class;
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else if (unwrapped.equals(MinecraftReflection.getBlockPositionClass()))
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return BlockPosition.class;
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else if (unwrapped.equals(MinecraftReflection.getChunkCoordinatesClass()))
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return WrappedChunkCoordinate.class;
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else if (unwrapped.equals(MinecraftReflection.getItemStackClass()))
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@ -367,17 +369,17 @@ public class WrappedWatchableObject extends AbstractWrapper {
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* @return The raw NMS object.
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*/
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static Object getUnwrapped(Object wrapped) {
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// Convert special cases
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// Convert special cases
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if (wrapped instanceof ChunkPosition)
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return ChunkPosition.getConverter().getGeneric(
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MinecraftReflection.getChunkPositionClass(), (ChunkPosition) wrapped);
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return ChunkPosition.getConverter().getGeneric(MinecraftReflection.getChunkPositionClass(), (ChunkPosition) wrapped);
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else if (wrapped instanceof BlockPosition)
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return BlockPosition.getConverter().getGeneric(MinecraftReflection.getBlockPositionClass(), (BlockPosition) wrapped);
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else if (wrapped instanceof WrappedChunkCoordinate)
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return ((WrappedChunkCoordinate) wrapped).getHandle();
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else if (wrapped instanceof ItemStack)
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return BukkitConverters.getItemStackConverter().getGeneric(
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MinecraftReflection.getItemStackClass(), (ItemStack) wrapped);
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else
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return wrapped;
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return ((WrappedChunkCoordinate) wrapped).getHandle();
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else if (wrapped instanceof ItemStack)
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return BukkitConverters.getItemStackConverter().getGeneric(MinecraftReflection.getItemStackClass(), (ItemStack) wrapped);
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else
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return wrapped;
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}
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/**
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@ -388,6 +390,8 @@ public class WrappedWatchableObject extends AbstractWrapper {
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static Class<?> getUnwrappedType(Class<?> wrapped) {
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if (wrapped.equals(ChunkPosition.class))
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return MinecraftReflection.getChunkPositionClass();
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else if (wrapped.equals(BlockPosition.class))
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return MinecraftReflection.getBlockPositionClass();
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else if (wrapped.equals(WrappedChunkCoordinate.class))
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return MinecraftReflection.getChunkCoordinatesClass();
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else if (ItemStack.class.isAssignableFrom(wrapped))
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@ -417,7 +421,10 @@ public class WrappedWatchableObject extends AbstractWrapper {
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Object value = getNMSValue();
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// Only a limited set of references types are supported
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if (MinecraftReflection.isChunkPosition(value)) {
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if (MinecraftReflection.isBlockPosition(value)) {
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EquivalentConverter<BlockPosition> converter = BlockPosition.getConverter();
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return converter.getGeneric(MinecraftReflection.getBlockPositionClass(), converter.getSpecific(value));
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} else if (MinecraftReflection.isChunkPosition(value)) {
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EquivalentConverter<ChunkPosition> converter = ChunkPosition.getConverter();
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return converter.getGeneric(MinecraftReflection.getChunkPositionClass(), converter.getSpecific(value));
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} else if (MinecraftReflection.isItemStack(value)) {
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