001    package net.minecraft.src;
002    
003    import java.util.Arrays;
004    import java.util.Collections;
005    import java.util.List;
006    import java.util.Map;
007    import net.minecraft.server.MinecraftServer;
008    
009    public class CommandHelp extends CommandBase
010    {
011        public String getCommandName()
012        {
013            return "help";
014        }
015    
016        public int func_82362_a()
017        {
018            return 0;
019        }
020    
021        public String getCommandUsage(ICommandSender par1ICommandSender)
022        {
023            return par1ICommandSender.translateString("commands.help.usage", new Object[0]);
024        }
025    
026        public List getCommandAliases()
027        {
028            return Arrays.asList(new String[] {"?"});
029        }
030    
031        public void processCommand(ICommandSender par1ICommandSender, String[] par2ArrayOfStr)
032        {
033            List var3 = this.getSortedPossibleCommands(par1ICommandSender);
034            byte var4 = 7;
035            int var5 = var3.size() / var4;
036            boolean var6 = false;
037            ICommand var9;
038            int var11;
039    
040            try
041            {
042                var11 = par2ArrayOfStr.length == 0 ? 0 : parseIntBounded(par1ICommandSender, par2ArrayOfStr[0], 1, var5 + 1) - 1;
043            }
044            catch (NumberInvalidException var10)
045            {
046                Map var8 = this.getCommands();
047                var9 = (ICommand)var8.get(par2ArrayOfStr[0]);
048    
049                if (var9 != null)
050                {
051                    throw new WrongUsageException(var9.getCommandUsage(par1ICommandSender), new Object[0]);
052                }
053    
054                throw new CommandNotFoundException();
055            }
056    
057            int var7 = Math.min((var11 + 1) * var4, var3.size());
058            par1ICommandSender.sendChatToPlayer("\u00a72" + par1ICommandSender.translateString("commands.help.header", new Object[] {Integer.valueOf(var11 + 1), Integer.valueOf(var5 + 1)}));
059    
060            for (int var12 = var11 * var4; var12 < var7; ++var12)
061            {
062                var9 = (ICommand)var3.get(var12);
063                par1ICommandSender.sendChatToPlayer(var9.getCommandUsage(par1ICommandSender));
064            }
065    
066            if (var11 == 0 && par1ICommandSender instanceof EntityPlayer)
067            {
068                par1ICommandSender.sendChatToPlayer("\u00a7a" + par1ICommandSender.translateString("commands.help.footer", new Object[0]));
069            }
070        }
071    
072        /**
073         * Returns a sorted list of all possible commands for the given ICommandSender.
074         */
075        protected List getSortedPossibleCommands(ICommandSender par1ICommandSender)
076        {
077            List var2 = MinecraftServer.getServer().getCommandManager().getPossibleCommands(par1ICommandSender);
078            Collections.sort(var2);
079            return var2;
080        }
081    
082        protected Map getCommands()
083        {
084            return MinecraftServer.getServer().getCommandManager().getCommands();
085        }
086    }