    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 i = this.getDifficultyForName(par1ICommandSender, par2ArrayOfStr[0]);
    034            MinecraftServer.getServer().setDifficultyForAllWorlds(i);
    035            String s = StatCollector.translateToLocal(difficulties[i]);
    036            notifyAdmins(par1ICommandSender, "commands.difficulty.success", new Object[] {s});
    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}