001    package net.minecraft.src;
002    
003    import java.util.List;
004    import net.minecraft.server.MinecraftServer;
005    
006    public class CommandGameRule extends CommandBase
007    {
008        public String getCommandName()
009        {
010            return "gamerule";
011        }
012    
013        /**
014         * Return the required permission level for this command.
015         */
016        public int getRequiredPermissionLevel()
017        {
018            return 2;
019        }
020    
021        public String getCommandUsage(ICommandSender par1ICommandSender)
022        {
023            return par1ICommandSender.translateString("commands.gamerule.usage", new Object[0]);
024        }
025    
026        public void processCommand(ICommandSender par1ICommandSender, String[] par2ArrayOfStr)
027        {
028            String var6;
029    
030            if (par2ArrayOfStr.length == 2)
031            {
032                var6 = par2ArrayOfStr[0];
033                String var7 = par2ArrayOfStr[1];
034                GameRules var8 = this.getGameRules();
035    
036                if (var8.hasRule(var6))
037                {
038                    var8.func_82764_b(var6, var7);
039                    notifyAdmins(par1ICommandSender, "commands.gamerule.success", new Object[0]);
040                }
041                else
042                {
043                    notifyAdmins(par1ICommandSender, "commands.gamerule.norule", new Object[] {var6});
044                }
045            }
046            else if (par2ArrayOfStr.length == 1)
047            {
048                var6 = par2ArrayOfStr[0];
049                GameRules var4 = this.getGameRules();
050    
051                if (var4.hasRule(var6))
052                {
053                    String var5 = var4.getGameRuleStringValue(var6);
054                    par1ICommandSender.sendChatToPlayer(var6 + " = " + var5);
055                }
056                else
057                {
058                    notifyAdmins(par1ICommandSender, "commands.gamerule.norule", new Object[] {var6});
059                }
060            }
061            else if (par2ArrayOfStr.length == 0)
062            {
063                GameRules var3 = this.getGameRules();
064                par1ICommandSender.sendChatToPlayer(joinNiceString(var3.getRules()));
065            }
066            else
067            {
068                throw new WrongUsageException("commands.gamerule.usage", new Object[0]);
069            }
070        }
071    
072        /**
073         * Adds the strings available in this command to the given list of tab completion options.
074         */
075        public List addTabCompletionOptions(ICommandSender par1ICommandSender, String[] par2ArrayOfStr)
076        {
077            return par2ArrayOfStr.length == 1 ? getListOfStringsMatchingLastWord(par2ArrayOfStr, this.getGameRules().getRules()) : (par2ArrayOfStr.length == 2 ? getListOfStringsMatchingLastWord(par2ArrayOfStr, new String[] {"true", "false"}): null);
078        }
079    
080        /**
081         * Return the game rule set this command should be able to manipulate.
082         */
083        private GameRules getGameRules()
084        {
085            return MinecraftServer.getServer().worldServerForDimension(0).getGameRules();
086        }
087    }