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