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}