Add support for MCPC-Plus
This commit is contained in:
Mike Primm
parent
18325c2b33
commit
9144bff25b
4 changed files with 608 additions and 390 deletions
380
src/main/java/org/dynmap/bukkit/BukkitVersionHelperGeneric.java
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380
src/main/java/org/dynmap/bukkit/BukkitVersionHelperGeneric.java
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package org.dynmap.bukkit;
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import java.lang.reflect.Field;
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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.Collections;
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import java.util.Map;
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import org.bukkit.Bukkit;
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import org.bukkit.Chunk;
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import org.bukkit.ChunkSnapshot;
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import org.bukkit.Server;
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import org.bukkit.World;
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import org.dynmap.Log;
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/**
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* Helper for isolation of bukkit version specific issues
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*/
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public abstract class BukkitVersionHelperGeneric extends BukkitVersionHelper {
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private String obc_package; // Package used for org.bukkit.craftbukkit
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protected String nms_package; // Package used for net.minecraft.server
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private boolean failed;
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private static final Object[] nullargs = new Object[0];
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private static final Map nullmap = Collections.emptyMap();
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/** CraftChunkSnapshot */
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private Class<?> craftchunksnapshot;
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private Field ccss_biome;
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/** CraftChunk */
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private Class<?> craftchunk;
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private Method cc_gethandle;
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/** CraftWorld */
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private Class<?> craftworld;
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private Method cw_gethandle;
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/** BiomeBase related helpers */
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protected Class<?> biomebase;
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protected Class<?> biomebasearray;
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protected Field biomebaselist;
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protected Field biomebasetemp;
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protected Field biomebasehumi;
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protected Field biomebaseidstring;
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protected Field biomebaseid;
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/** n.m.s.World */
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protected Class<?> nmsworld;
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protected Class<?> chunkprovserver;
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protected Class<?> longhashset;
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protected Field nmsw_chunkproviderserver;
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protected Field cps_unloadqueue;
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protected Method lhs_containskey;
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/** n.m.s.Chunk */
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protected Class<?> nmschunk;
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protected Method nmsc_removeentities;
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protected Field nmsc_tileentities;
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/** nbt classes */
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protected Class<?> nbttagcompound;
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protected Class<?> nbttagbyte;
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protected Class<?> nbttagshort;
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protected Class<?> nbttagint;
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protected Class<?> nbttaglong;
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protected Class<?> nbttagfloat;
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protected Class<?> nbttagdouble;
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protected Class<?> nbttagbytearray;
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protected Class<?> nbttagstring;
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protected Class<?> nbttagintarray;
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protected Method compound_get;
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protected Field nbttagbyte_val;
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protected Field nbttagshort_val;
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protected Field nbttagint_val;
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protected Field nbttaglong_val;
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protected Field nbttagfloat_val;
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protected Field nbttagdouble_val;
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protected Field nbttagbytearray_val;
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protected Field nbttagstring_val;
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protected Field nbttagintarray_val;
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/** Tile entity */
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protected Class<?> nms_tileentity;
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protected Method nmst_readnbt;
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protected Field nmst_x;
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protected Field nmst_y;
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protected Field nmst_z;
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BukkitVersionHelperGeneric() {
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failed = false;
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Server srv = Bukkit.getServer();
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/* Look up base classname for bukkit server - tells us OBC package */
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obc_package = Bukkit.getServer().getClass().getPackage().getName();
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/* Get NMS package */
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nms_package = getNMSPackage();
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if(nms_package == null) {
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failed = true;
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}
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/* Craftworld fields */
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craftworld = getOBCClass("org.bukkit.craftbukkit.CraftWorld");
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cw_gethandle = getMethod(craftworld, new String[] { "getHandle" }, new Class[0]);
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longhashset = getOBCClassNoFail("org.bukkit.craftbukkit.util.LongHashSet");
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if(longhashset != null) {
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lhs_containskey = getMethod(longhashset, new String[] { "contains" }, new Class[] { int.class, int.class });
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}
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else {
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longhashset = getOBCClass("org.bukkit.craftbukkit.util.LongHashset");
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lhs_containskey = getMethod(longhashset, new String[] { "containsKey" }, new Class[] { int.class, int.class });
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}
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/* CraftChunkSnapshot */
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craftchunksnapshot = getOBCClass("org.bukkit.craftbukkit.CraftChunkSnapshot");
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ccss_biome = getPrivateField(craftchunksnapshot, new String[] { "biome" }, biomebasearray);
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/* CraftChunk */
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craftchunk = getOBCClass("org.bukkit.craftbukkit.CraftChunk");
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cc_gethandle = getMethod(craftchunk, new String[] { "getHandle" }, new Class[0]);
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/* Get NMS classes and fields */
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if(!failed)
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loadNMS();
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if(failed)
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throw new IllegalArgumentException("Error initializing dynmap - bukkit version incompatible!");
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}
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protected abstract void loadNMS();
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protected abstract String getNMSPackage();
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protected Class<?> getOBCClass(String classname) {
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return getClassByName(classname, "org.bukkit.craftbukkit", obc_package, false);
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}
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protected Class<?> getOBCClassNoFail(String classname) {
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return getClassByName(classname, "org.bukkit.craftbukkit", obc_package, true);
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}
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protected Class<?> getNMSClass(String classname) {
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return getClassByName(classname, "net.minecraft.server", nms_package, false);
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}
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protected Class<?> getClassByName(String classname, String base, String mapping, boolean nofail) {
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String n = classname;
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int idx = classname.indexOf(base);
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if(idx >= 0) {
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n = classname.substring(0, idx) + mapping + classname.substring(idx + base.length());
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}
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try {
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return Class.forName(n);
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} catch (ClassNotFoundException cnfx) {
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try {
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return Class.forName(classname);
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} catch (ClassNotFoundException cnfx2) {
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if(!nofail) {
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Log.severe("Cannot find " + classname);
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failed = true;
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}
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return null;
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}
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}
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}
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/**
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* Get field
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*/
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protected Field getField(Class<?> cls, String[] ids, Class<?> type) {
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return getField(cls, ids, type, false);
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}
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protected Field getFieldNoFail(Class<?> cls, String[] ids, Class<?> type) {
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return getField(cls, ids, type, true);
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}
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/**
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* Get field
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*/
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private Field getField(Class<?> cls, String[] ids, Class<?> type, boolean nofail) {
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if((cls == null) || (type == null)) return null;
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for(String id : ids) {
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try {
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Field f = cls.getField(id);
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if(f.getType().isAssignableFrom(type)) {
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return f;
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}
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} catch (NoSuchFieldException nsfx) {
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}
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}
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if(!nofail) {
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Log.severe("Unable to find field " + ids[0] + " for " + cls.getName());
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failed = true;
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}
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return null;
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}
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/**
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* Get private field
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*/
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private Field getPrivateField(Class<?> cls, String[] ids, Class<?> type) {
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if((cls == null) || (type == null)) return null;
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for(String id : ids) {
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try {
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Field f = cls.getDeclaredField(id);
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if(f.getType().isAssignableFrom(type)) {
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f.setAccessible(true);
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return f;
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}
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} catch (NoSuchFieldException nsfx) {
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}
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}
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Log.severe("Unable to find field " + ids[0] + " for " + cls.getName());
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failed = true;
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return null;
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}
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private Object getFieldValue(Object obj, Field field, Object def) {
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if((obj != null) && (field != null)) {
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try {
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return field.get(obj);
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} catch (IllegalArgumentException e) {
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} catch (IllegalAccessException e) {
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}
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}
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return def;
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}
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/**
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* Get method
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*/
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protected Method getMethod(Class<?> cls, String[] ids, Class[] args) {
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if(cls == null) return null;
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for(String id : ids) {
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try {
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return cls.getMethod(id, args);
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} catch (SecurityException e) {
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} catch (NoSuchMethodException e) {
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}
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}
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Log.severe("Unable to find method " + ids[0] + " for " + cls.getName());
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failed = true;
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return null;
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}
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private Object callMethod(Object obj, Method meth, Object[] args, Object def) {
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if((obj == null) || (meth == null)) {
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return def;
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}
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try {
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return meth.invoke(obj, args);
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} catch (IllegalArgumentException iax) {
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} catch (IllegalAccessException e) {
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} catch (InvocationTargetException e) {
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}
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return def;
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}
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/**
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* Get list of defined biomebase objects
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*/
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public Object[] getBiomeBaseList() {
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return (Object[]) getFieldValue(biomebase, biomebaselist, new Object[0]);
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}
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/** Get temperature from biomebase */
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public float getBiomeBaseTemperature(Object bb) {
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return (Float) getFieldValue(bb, biomebasetemp, 0.5F);
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}
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/** Get humidity from biomebase */
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public float getBiomeBaseHumidity(Object bb) {
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return (Float) getFieldValue(bb, biomebasehumi, 0.5F);
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}
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/** Get ID string from biomebase */
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public String getBiomeBaseIDString(Object bb) {
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return (String) getFieldValue(bb, biomebaseidstring, null);
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}
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/** Get ID from biomebase */
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public int getBiomeBaseID(Object bb) {
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return (Integer) getFieldValue(bb, biomebaseid, -1);
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}
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/* Get net.minecraft.server.world for given world */
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public Object getNMSWorld(World w) {
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return callMethod(w, cw_gethandle, nullargs, null);
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}
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/* Get unload queue for given NMS world */
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public Object getUnloadQueue(Object nmsworld) {
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Object cps = getFieldValue(nmsworld, nmsw_chunkproviderserver, null); // Get chunkproviderserver
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if(cps != null) {
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return getFieldValue(cps, cps_unloadqueue, null);
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}
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return null;
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}
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/* For testing unload queue for presence of givne chunk */
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public boolean isInUnloadQueue(Object unloadqueue, int x, int z) {
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if(unloadqueue != null) {
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return (Boolean)callMethod(unloadqueue, lhs_containskey, new Object[] { x, z }, true);
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}
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return true;
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}
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public Object[] getBiomeBaseFromSnapshot(ChunkSnapshot css) {
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return (Object[])getFieldValue(css, ccss_biome, null);
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}
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public boolean isCraftChunkSnapshot(ChunkSnapshot css) {
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if(craftchunksnapshot != null) {
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return craftchunksnapshot.isAssignableFrom(css.getClass());
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}
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return false;
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}
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/** Remove entities from given chunk */
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public void removeEntitiesFromChunk(Chunk c) {
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Object omsc = callMethod(c, cc_gethandle, nullargs, null);
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if(omsc != null) {
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callMethod(omsc, nmsc_removeentities, nullargs, null);
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}
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}
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/** Get tile entities map from chunk */
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public Map getTileEntitiesForChunk(Chunk c) {
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Object omsc = callMethod(c, cc_gethandle, nullargs, null);
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if(omsc != null) {
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return (Map)getFieldValue(omsc, nmsc_tileentities, nullmap);
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}
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return nullmap;
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}
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/**
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* Get X coordinate of tile entity
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*/
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public int getTileEntityX(Object te) {
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return (Integer)getFieldValue(te, nmst_x, 0);
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}
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/**
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* Get Y coordinate of tile entity
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*/
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public int getTileEntityY(Object te) {
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return (Integer)getFieldValue(te, nmst_y, 0);
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}
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/**
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* Get Z coordinate of tile entity
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*/
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public int getTileEntityZ(Object te) {
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return (Integer)getFieldValue(te, nmst_z, 0);
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}
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/**
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* Read tile entity NBT
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*/
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public Object readTileEntityNBT(Object te) {
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if(nbttagcompound == null) return null;
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Object nbt = null;
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try {
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nbt = nbttagcompound.newInstance();
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} catch (InstantiationException e) {
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} catch (IllegalAccessException e) {
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}
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if(nbt != null) {
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callMethod(te, nmst_readnbt, new Object[] { nbt }, null);
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}
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return nbt;
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}
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/**
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* Get field value from NBT compound
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*/
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public Object getFieldValue(Object nbt, String field) {
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Object val = callMethod(nbt, compound_get, new Object[] { field }, null);
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if(val == null) return null;
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Class<?> valcls = val.getClass();
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if(valcls.equals(nbttagbyte)) {
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return getFieldValue(val, nbttagbyte_val, null);
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}
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else if(valcls.equals(nbttagshort)) {
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return getFieldValue(val, nbttagshort_val, null);
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}
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else if(valcls.equals(nbttagint)) {
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return getFieldValue(val, nbttagint_val, null);
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}
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else if(valcls.equals(nbttaglong)) {
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return getFieldValue(val, nbttaglong_val, null);
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}
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else if(valcls.equals(nbttagfloat)) {
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return getFieldValue(val, nbttagfloat_val, null);
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}
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else if(valcls.equals(nbttagdouble)) {
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return getFieldValue(val, nbttagdouble_val, null);
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}
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else if(valcls.equals(nbttagbytearray)) {
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return getFieldValue(val, nbttagbytearray_val, null);
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}
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else if(valcls.equals(nbttagstring)) {
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return getFieldValue(val, nbttagstring_val, null);
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}
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else if(valcls.equals(nbttagintarray)) {
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return getFieldValue(val, nbttagintarray_val, null);
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}
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return null;
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}
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}
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