Biome Painter 

<< License >> 

Please see LICENSE.txt. 

<< Changelog >>

Please see CHANGELOG.txt.

<< About >> 

Biome Painter is a stand-alone program for editing biome information in 
Minecraft save files using the Anvil file format introduced in Minecraft 1.2. 

After loading a region, left click to paint your selection over the map of the 
region and right click to erase. 

Once an area has been selected it can be filled with a particular biome or have 
all instances of a particular biome within the selection replaced with another 
biome. 

In addition to arbitrary biomes, the biome generation from various versions of 
Minecraft can be used to populate the selected area with the biomes that would 
have been at those particular coordinates while playing that version. 

<< Points of Confusion >> 

* The left mouse button can be used to paint a selection over the map of the 
current region, and the right mouse button to erase that selection. 

* This program only alters biomes, which affect the shade of grass, water, and 
the sky, what mobs can spawn in an area, and whether rain or snow is possible. 
For example, after changing an area from taiga or ice plains to another biome 
such as forest, existing ice and snow cover will remain until removed using 
another tool such as MCEdit or removed manually in Minecraft. 

* If, however, you use the "Set Chunks in Selection to be Populated" option
under the Edit menu, the next time the specified chunks are loaded in Minecraft
it will fill them with trees, snow cover, water, lava, and ores depending on
the biome(s) the chunk is in. If that chunk has already been populated or
already has player-made structures in it, you may find it clogged with more
foliage than you wanted. Also smooth stone in your structures may be replaced
with ores, dirt, or gravel. I strongly suggest that if you decide to use this
feature you make sure you have a current backup copy of your world before
proceeding.

* The outermost two chunks (32 blocks) along the edge of the image are from the
regions adjacent to the currently loaded one and read-only. Thier purpose is to
help with lining up changes to biomes along the border between two regions. To
edit those blocks you need to switch to the region that contains them.

* Custom block color and biome definitions should be added to Blocks.user.txt
and Biomes.user.txt respectively. The other two files, Blocks.default.txt and
Biomes.default.txt can be kept up to date from "Check for updates" under the
Help menu. Entries in the user files always override entries in the default.

* If a world was created before Minecraft 1.2 and needed to be converted, 
Minecraft will have populated each chunk's biome information based on the biome 
generation from version 1.1. Minecraft will still use the latest biome 
generation code for newly generated chunks in any world whether it was orignally 
converted or not. 

* When filling a selection with biomes based on Minecraft Beta 1.7 or earlier 
please remember that not all biomes in that version exist in the current 
version of Minecraft. As such, areas that would have been shrubland or 
seasonal forest are all set to forest, for example. Areas that would have been 
swampland in Beta 1.7 are set to forest in order to look a close as possible 
to how they would have in the past. Additionally the Beta 1.7 biome rainforest 
is set to yield the Minecraft 1.2 biome jungle. 

<< Source >> 

The source for Biome Painter is available at 
https://github.com/mblaine/BiomePainter.