ICommandSender.java

package net.minecraft.command;

import net.minecraft.util.ChunkCoordinates;
import net.minecraft.util.IChatComponent;
import net.minecraft.world.World;

public interface ICommandSender
{
    /**
     * Gets the name of this command sender (usually username, but possibly "Rcon")
     */
    String getCommandSenderName();

    IChatComponent getFormattedCommandSenderName();

    /**
     * Notifies this sender of some sort of information.  This is for messages intended to display to the user.  Used
     * for typical output (like "you asked for whether or not this game rule is set, so here's your answer"), warnings
     * (like "I fetched this block for you by ID, but I'd like you to know that every time you do this, I die a little
     * inside"), and errors (like "it's not called iron_pixacke, silly").
     */
    void addChatMessage(IChatComponent message);

    /**
     * Returns true if the command sender is allowed to use the given command.
     */
    boolean canCommandSenderUseCommand(int permissionLevel, String command);

    /**
     * Return the position for this command sender.
     */
    ChunkCoordinates getCommandSenderPosition();

    World getEntityWorld();
}