    001/*
    002 * The FML Forge Mod Loader suite. Copyright (C) 2012 cpw
    003 *
    004 * This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free
    005 * Software Foundation; either version 2.1 of the License, or any later version.
    006 *
    007 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
    008 * A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
    009 *
    010 * You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51
    011 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
    012 */
    013package cpw.mods.fml.server;
    014
    015import java.util.List;
    016
    017import com.google.common.collect.ImmutableList;
    018import com.google.common.collect.MapDifference;
    019
    020import net.minecraft.entity.Entity;
    021import net.minecraft.network.INetworkManager;
    022import net.minecraft.network.packet.NetHandler;
    023import net.minecraft.network.packet.Packet;
    024import net.minecraft.network.packet.Packet131MapData;
    025import net.minecraft.server.MinecraftServer;
    026import net.minecraft.world.World;
    027import cpw.mods.fml.common.FMLCommonHandler;
    028import cpw.mods.fml.common.IFMLSidedHandler;
    029import cpw.mods.fml.common.Loader;
    030import cpw.mods.fml.common.ObfuscationReflectionHelper;
    031import cpw.mods.fml.common.network.EntitySpawnAdjustmentPacket;
    032import cpw.mods.fml.common.network.EntitySpawnPacket;
    033import cpw.mods.fml.common.network.ModMissingPacket;
    034import cpw.mods.fml.common.registry.EntityRegistry.EntityRegistration;
    035import cpw.mods.fml.common.registry.GameData;
    036import cpw.mods.fml.common.registry.GameRegistry;
    037import cpw.mods.fml.common.registry.ItemData;
    038import cpw.mods.fml.common.registry.LanguageRegistry;
    039import cpw.mods.fml.relauncher.Side;
    040
    041/**
    042 * Handles primary communication from hooked code into the system
    043 *
    044 * The FML entry point is {@link #beginServerLoading(MinecraftServer)} called from
    045 * {@link net.minecraft.server.dedicated.DedicatedServer}
    046 *
    047 * Obfuscated code should focus on this class and other members of the "server"
    048 * (or "client") code
    049 *
    050 * The actual mod loading is handled at arms length by {@link Loader}
    051 *
    052 * It is expected that a similar class will exist for each target environment:
    053 * Bukkit and Client side.
    054 *
    055 * It should not be directly modified.
    056 *
    057 * @author cpw
    058 *
    059 */
    060public class FMLServerHandler implements IFMLSidedHandler
    061{
    062    /**
    063     * The singleton
    064     */
    065    private static final FMLServerHandler INSTANCE = new FMLServerHandler();
    066
    067    /**
    068     * A reference to the server itself
    069     */
    070    private MinecraftServer server;
    071
    072    private FMLServerHandler()
    073    {
    074        FMLCommonHandler.instance().beginLoading(this);
    075    }
    076    /**
    077     * Called to start the whole game off from
    078     * {@link MinecraftServer#startServer}
    079     *
    080     * @param minecraftServer
    081     */
    082    public void beginServerLoading(MinecraftServer minecraftServer)
    083    {
    084        server = minecraftServer;
    085        ObfuscationReflectionHelper.detectObfuscation(World.class);
    086        Loader.instance().loadMods();
    087    }
    088
    089    /**
    090     * Called a bit later on during server initialization to finish loading mods
    091     */
    092    public void finishServerLoading()
    093    {
    094        Loader.instance().initializeMods();
    095        LanguageRegistry.reloadLanguageTable();
    096        GameData.initializeServerGate(1);
    097    }
    098
    099    @Override
    100    public void haltGame(String message, Throwable exception)
    101    {
    102        throw new RuntimeException(message, exception);
    103    }
    104
    105    /**
    106     * Get the server instance
    107     */
    108    public MinecraftServer getServer()
    109    {
    110        return server;
    111    }
    112
    113    /**
    114     * @return the instance
    115     */
    116    public static FMLServerHandler instance()
    117    {
    118        return INSTANCE;
    119    }
    120
    121    /* (non-Javadoc)
    122     * @see cpw.mods.fml.common.IFMLSidedHandler#getAdditionalBrandingInformation()
    123     */
    124    @Override
    125    public List<String> getAdditionalBrandingInformation()
    126    {
    127        return ImmutableList.<String>of();
    128    }
    129
    130    /* (non-Javadoc)
    131     * @see cpw.mods.fml.common.IFMLSidedHandler#getSide()
    132     */
    133    @Override
    134    public Side getSide()
    135    {
    136        return Side.SERVER;
    137    }
    138
    139    @Override
    140    public void showGuiScreen(Object clientGuiElement)
    141    {
    142
    143    }
    144
    145    @Override
    146    public Entity spawnEntityIntoClientWorld(EntityRegistration er, EntitySpawnPacket packet)
    147    {
    148        // NOOP
    149        return null;
    150    }
    151
    152    @Override
    153    public void adjustEntityLocationOnClient(EntitySpawnAdjustmentPacket entitySpawnAdjustmentPacket)
    154    {
    155        // NOOP
    156    }
    157    @Override
    158    public void sendPacket(Packet packet)
    159    {
    160        throw new RuntimeException("You cannot send a bare packet without a target on the server!");
    161    }
    162    @Override
    163    public void displayMissingMods(ModMissingPacket modMissingPacket)
    164    {
    165        // NOOP on server
    166    }
    167    @Override
    168    public void handleTinyPacket(NetHandler handler, Packet131MapData mapData)
    169    {
    170        // NOOP on server
    171    }
    172    @Override
    173    public void setClientCompatibilityLevel(byte compatibilityLevel)
    174    {
    175        // NOOP on server
    176    }
    177    @Override
    178    public byte getClientCompatibilityLevel()
    179    {
    180        return 0;
    181    }
    182
    183    @Override
    184    public boolean shouldServerShouldBeKilledQuietly()
    185    {
    186        return false;
    187    }
    188    @Override
    189    public void disconnectIDMismatch(MapDifference<Integer, ItemData> s, NetHandler handler, INetworkManager mgr)
    190    {
    191
    192    }
    193}