001    package net.minecraft.src;
002    
003    import java.util.List;
004    import net.minecraft.server.MinecraftServer;
005    
006    public class CommandDifficulty extends CommandBase
007    {
008        private static final String[] difficulties = new String[] {"options.difficulty.peaceful", "options.difficulty.easy", "options.difficulty.normal", "options.difficulty.hard"};
009    
010        public String getCommandName()
011        {
012            return "difficulty";
013        }
014    
015        /**
016         * Return the required permission level for this command.
017         */
018        public int getRequiredPermissionLevel()
019        {
020            return 2;
021        }
022    
023        public String getCommandUsage(ICommandSender par1ICommandSender)
024        {
025            return par1ICommandSender.translateString("commands.difficulty.usage", new Object[0]);
026        }
027    
028        public void processCommand(ICommandSender par1ICommandSender, String[] par2ArrayOfStr)
029        {
030            if (par2ArrayOfStr.length > 0)
031            {
032                int var3 = this.getDifficultyForName(par1ICommandSender, par2ArrayOfStr[0]);
033                MinecraftServer.getServer().setDifficultyForAllWorlds(var3);
034                String var4 = StatCollector.translateToLocal(difficulties[var3]);
035                notifyAdmins(par1ICommandSender, 1, "commands.difficulty.success", new Object[] {var4});
036            }
037            else
038            {
039                throw new WrongUsageException("commands.difficulty.usage", new Object[0]);
040            }
041        }
042    
043        /**
044         * Return the difficulty value for the specified string.
045         */
046        protected int getDifficultyForName(ICommandSender par1ICommandSender, String par2Str)
047        {
048            return !par2Str.equalsIgnoreCase("peaceful") && !par2Str.equalsIgnoreCase("p") ? (!par2Str.equalsIgnoreCase("easy") && !par2Str.equalsIgnoreCase("e") ? (!par2Str.equalsIgnoreCase("normal") && !par2Str.equalsIgnoreCase("n") ? (!par2Str.equalsIgnoreCase("hard") && !par2Str.equalsIgnoreCase("h") ? parseIntBounded(par1ICommandSender, par2Str, 0, 3) : 3) : 2) : 1) : 0;
049        }
050    
051        /**
052         * Adds the strings available in this command to the given list of tab completion options.
053         */
054        public List addTabCompletionOptions(ICommandSender par1ICommandSender, String[] par2ArrayOfStr)
055        {
056            return par2ArrayOfStr.length == 1 ? getListOfStringsMatchingLastWord(par2ArrayOfStr, new String[] {"peaceful", "easy", "normal", "hard"}): null;
057        }
058    }