001package net.minecraft.command;
002
003import java.util.List;
004import net.minecraft.server.MinecraftServer;
005import net.minecraft.util.StatCollector;
006
007public class CommandDifficulty extends CommandBase
008{
009    private static final String[] difficulties = new String[] {"options.difficulty.peaceful", "options.difficulty.easy", "options.difficulty.normal", "options.difficulty.hard"};
010
011    public String getCommandName()
012    {
013        return "difficulty";
014    }
015
016    /**
017     * Return the required permission level for this command.
018     */
019    public int getRequiredPermissionLevel()
020    {
021        return 2;
022    }
023
024    public String getCommandUsage(ICommandSender par1ICommandSender)
025    {
026        return par1ICommandSender.translateString("commands.difficulty.usage", new Object[0]);
027    }
028
029    public void processCommand(ICommandSender par1ICommandSender, String[] par2ArrayOfStr)
030    {
031        if (par2ArrayOfStr.length > 0)
032        {
033            int var3 = this.getDifficultyForName(par1ICommandSender, par2ArrayOfStr[0]);
034            MinecraftServer.getServer().setDifficultyForAllWorlds(var3);
035            String var4 = StatCollector.translateToLocal(difficulties[var3]);
036            notifyAdmins(par1ICommandSender, 1, "commands.difficulty.success", new Object[] {var4});
037        }
038        else
039        {
040            throw new WrongUsageException("commands.difficulty.usage", new Object[0]);
041        }
042    }
043
044    /**
045     * Return the difficulty value for the specified string.
046     */
047    protected int getDifficultyForName(ICommandSender par1ICommandSender, String par2Str)
048    {
049        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;
050    }
051
052    /**
053     * Adds the strings available in this command to the given list of tab completion options.
054     */
055    public List addTabCompletionOptions(ICommandSender par1ICommandSender, String[] par2ArrayOfStr)
056    {
057        return par2ArrayOfStr.length == 1 ? getListOfStringsMatchingLastWord(par2ArrayOfStr, new String[] {"peaceful", "easy", "normal", "hard"}): null;
058    }
059}