minecraft-launcher-docs/docs/en-us/variables.md

Variables

MC_DIR

!> Minecraft directory

The variable MC_DIR is the key variable on the basis of which the paths in the script are built.

When using a non-standard path, you should change the directory at your discretion.

You can specify a relative path if the script file is located in the directory with the game, for example:

• for Windows %CD%
• for Linux ./

?> However, it should be noted that on Windows, if the script file is located in a different directory and on a different local disk, first you need to go to the disk where the game is located (by default %SystemDrive%). Otherwise, the settings files and save directories will appear next to the script.

GAME_DIR

!> Directory with game settings

User files are stored in this directory:

• saves - saves directory
• resourcepacks - resource packs directory
• screenshots - shapshots directory
• options.txt - options file

?> It is recommended to keep them in a separate directory to avoid confusion and easily transfer your files to other computers.

?> By default using MC_DIR

ASSETS_DIR

!> Minecraft assets directory

ASSETS_INDEX

!> Minecraft assets index

Stored in version['assetIndex']['id']. Has the same meaning as the version of the game, excluding the patch.

Example 1.16 for game versions 1.16.3, 1.16.4, 1.16.5.

GAME_VERSION

!> Minecraft version

NATIVES_DIR

!> Directory with binary libraries

LIBRARIES_LIST

!> Dependency library path list

The Release version of the launcher is present. In other cases, you need to generate it yourself.

PLAYER_NAME

!> Player name

By default, when the script starts, the user is prompted to enter the player's name interactively.

If there is no need to change the name when starting the script, write down the required name in the variable.

set PLAYER_NAME=Steve

and remove this line

set /p player=What username would you like?

WINDOW_W

!> Game window width

WINDOW_H

!> Game window height

JVM_RAM

!> Java virtual machine variable that determines the size of the consumed RAM

JVM_ARGS

!> Java virtual machine variable that defines its variables