    001package net.minecraft.command;
    002
    003import java.util.Arrays;
    004import java.util.Collections;
    005import java.util.List;
    006import java.util.Map;
    007import net.minecraft.entity.player.EntityPlayer;
    008import net.minecraft.server.MinecraftServer;
    009
    010public class CommandHelp extends CommandBase
    011{
    012    public String getCommandName()
    013    {
    014        return "help";
    015    }
    016
    017    /**
    018     * Return the required permission level for this command.
    019     */
    020    public int getRequiredPermissionLevel()
    021    {
    022        return 0;
    023    }
    024
    025    public String getCommandUsage(ICommandSender par1ICommandSender)
    026    {
    027        return par1ICommandSender.translateString("commands.help.usage", new Object[0]);
    028    }
    029
    030    public List getCommandAliases()
    031    {
    032        return Arrays.asList(new String[] {"?"});
    033    }
    034
    035    public void processCommand(ICommandSender par1ICommandSender, String[] par2ArrayOfStr)
    036    {
    037        List var3 = this.getSortedPossibleCommands(par1ICommandSender);
    038        byte var4 = 7;
    039        int var5 = (var3.size() - 1) / var4;
    040        boolean var6 = false;
    041        ICommand var9;
    042        int var11;
    043
    044        try
    045        {
    046            var11 = par2ArrayOfStr.length == 0 ? 0 : parseIntBounded(par1ICommandSender, par2ArrayOfStr[0], 1, var5 + 1) - 1;
    047        }
    048        catch (NumberInvalidException var10)
    049        {
    050            Map var8 = this.getCommands();
    051            var9 = (ICommand)var8.get(par2ArrayOfStr[0]);
    052
    053            if (var9 != null)
    054            {
    055                throw new WrongUsageException(var9.getCommandUsage(par1ICommandSender), new Object[0]);
    056            }
    057
    058            throw new CommandNotFoundException();
    059        }
    060
    061        int var7 = Math.min((var11 + 1) * var4, var3.size());
    062        par1ICommandSender.sendChatToPlayer("\u00a72" + par1ICommandSender.translateString("commands.help.header", new Object[] {Integer.valueOf(var11 + 1), Integer.valueOf(var5 + 1)}));
    063
    064        for (int var12 = var11 * var4; var12 < var7; ++var12)
    065        {
    066            var9 = (ICommand)var3.get(var12);
    067            par1ICommandSender.sendChatToPlayer(var9.getCommandUsage(par1ICommandSender));
    068        }
    069
    070        if (var11 == 0 && par1ICommandSender instanceof EntityPlayer)
    071        {
    072            par1ICommandSender.sendChatToPlayer("\u00a7a" + par1ICommandSender.translateString("commands.help.footer", new Object[0]));
    073        }
    074    }
    075
    076    /**
    077     * Returns a sorted list of all possible commands for the given ICommandSender.
    078     */
    079    protected List getSortedPossibleCommands(ICommandSender par1ICommandSender)
    080    {
    081        List var2 = MinecraftServer.getServer().getCommandManager().getPossibleCommands(par1ICommandSender);
    082        Collections.sort(var2);
    083        return var2;
    084    }
    085
    086    protected Map getCommands()
    087    {
    088        return MinecraftServer.getServer().getCommandManager().getCommands();
    089    }
    090}