144 lines
5.6 KiB
Java
144 lines
5.6 KiB
Java
/*
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* Minecraft Forge
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* Copyright (c) 2016-2018.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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package net.minecraftforge.fml;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.Optional;
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import com.google.common.collect.Multimap;
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import net.minecraft.nbt.INBTBase;
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import net.minecraft.nbt.NBTTagCompound;
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import net.minecraft.nbt.NBTTagList;
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import net.minecraft.util.ResourceLocation;
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import net.minecraft.world.storage.SaveHandler;
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import net.minecraft.world.storage.WorldInfo;
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import net.minecraftforge.registries.ForgeRegistry;
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import net.minecraftforge.registries.GameData;
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import net.minecraftforge.registries.RegistryManager;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import org.apache.logging.log4j.Marker;
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import org.apache.logging.log4j.MarkerManager;
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/**
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* @author cpw
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*
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*/
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public final class FMLWorldPersistenceHook implements WorldPersistenceHooks.WorldPersistenceHook
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{
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private static final Logger LOGGER = LogManager.getLogger();
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private static final Marker WORLDPERSISTENCE = MarkerManager.getMarker("WP");
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@Override
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public String getModId()
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{
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return "fml";
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}
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@Override
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public NBTTagCompound getDataForWriting(SaveHandler handler, WorldInfo info)
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{
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NBTTagCompound fmlData = new NBTTagCompound();
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NBTTagList modList = new NBTTagList();
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ModList.get().getMods().forEach(mi->
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{
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final NBTTagCompound mod = new NBTTagCompound();
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mod.setString("ModId", mi.getModId());
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mod.setString("ModVersion", mi.getVersion().getVersionString());
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modList.add(mod);
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});
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fmlData.setTag("LoadingModList", modList);
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NBTTagCompound registries = new NBTTagCompound();
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fmlData.setTag("Registries", registries);
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LOGGER.debug(WORLDPERSISTENCE,"Gathering id map for writing to world save {}", info.getWorldName());
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for (Map.Entry<ResourceLocation, ForgeRegistry.Snapshot> e : RegistryManager.ACTIVE.takeSnapshot(true).entrySet())
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{
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registries.setTag(e.getKey().toString(), e.getValue().write());
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}
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return fmlData;
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}
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@Override
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public void readData(SaveHandler handler, WorldInfo info, NBTTagCompound tag)
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{
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if (tag.hasKey("LoadingModList"))
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{
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NBTTagList modList = tag.getTagList("LoadingModList", (byte)10);
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for (int i = 0; i < modList.size(); i++)
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{
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NBTTagCompound mod = modList.getCompoundTagAt(i);
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String modId = mod.getString("ModId");
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String modVersion = mod.getString("ModVersion");
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Optional<? extends ModContainer> container = ModList.get().getModContainerById(modId);
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if (!container.isPresent())
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{
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LOGGER.error(WORLDPERSISTENCE,"This world was saved with mod {} which appears to be missing, things may not work well", modId);
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continue;
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}
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if (!modVersion.equals(container.get().getModInfo().getVersion().getVersionString()))
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{
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LOGGER.info(WORLDPERSISTENCE,"This world was saved with mod {} version {} and it is now at version {}, things may not work well", modId, modVersion, container.get().getModInfo().getVersion().getVersionString());
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}
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}
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}
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Multimap<ResourceLocation, ResourceLocation> failedElements = null;
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if (tag.hasKey("ModItemData") || tag.hasKey("ItemData")) // Pre 1.7
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{
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StartupQuery.notify("This save predates 1.7.10, it can no longer be loaded here. Please load in 1.7.10 or 1.8 first");
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StartupQuery.abort();
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}
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else if (tag.hasKey("Registries")) // 1.8, genericed out the 'registries' list
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{
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Map<ResourceLocation, ForgeRegistry.Snapshot> snapshot = new HashMap<>();
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NBTTagCompound regs = tag.getCompoundTag("Registries");
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for (String key : regs.getKeySet())
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{
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snapshot.put(new ResourceLocation(key), ForgeRegistry.Snapshot.read(regs.getCompoundTag(key)));
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}
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failedElements = GameData.injectSnapshot(snapshot, true, true);
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}
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if (failedElements != null && !failedElements.isEmpty())
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{
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StringBuilder buf = new StringBuilder();
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buf.append("Forge Mod Loader could not load this save.\n\n")
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.append("There are ").append(failedElements.size()).append(" unassigned registry entries in this save.\n")
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.append("You will not be able to load until they are present again.\n\n");
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failedElements.asMap().forEach((name, entries) ->
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{
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buf.append("Missing ").append(name).append(":\n");
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entries.forEach(rl -> buf.append(" ").append(rl).append("\n"));
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});
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StartupQuery.notify(buf.toString());
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StartupQuery.abort();
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}
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}
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}
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