Talk:Minecraft

minecraft

%appdata%\.minecraft\options.txt

gamma:3.90140843

To get to the .minecraft folder, you can always just open Run from the start menu and type %appdata%\.minecraft\, then click Run. It'll open your minecraft folder.

@p - nearest player
@r - random player
@a - all players
@e - all entities and players

kill @e[type=Creeper,r=20] - will kill all creepers in a 20-block radius

   [name=NAME] — Selects only targets named NAME.
   [name=!NAME] — Selects only targets not named NAME. 
   [type=TYPE] — Selects only targets of the specific entity type.
   [type=!TYPE] — Selects only targets not of the specific entity type. 

difficulty

   peaceful (can be abbreviated as p or 0) for peaceful difficulty
   easy (can be abbreviated as e or 1) for easy difficulty
   normal (can be abbreviated as n or 2) for normal difficulty
   hard (can be abbreviated as h or 3) for hard difficulty

defaultgamemode <mode>

           survival (can be abbreviated as s or 0) for survival mode
           creative (can be abbreviated as c or 1) for creative mode
           adventure (can be abbreviated as a or 2) for adventure mode
           spectator (can be abbreviated as sp or 3) for spectator mode

It's possible as of version 1.4.2 (12w32a) with the /difficulty x server command, where x is a number from 0 to 3:

0 = peaceful
1 = easy
2 = normal
3 = hard 

The setting will be saved across restarts.

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