Minecraft selected-region backups
Select Java-world regions using block coordinates, check dimensions and ranges, and understand uncaptured content during overlay restore.
MineRewind1.9 selected-regions takes block-coordinate rectangles, creating partial captures. Inputs are not .mca region coordinates or chunk coordinates.
Configure coordinates
Select the plugin scope in backup policy, explicitly choose overworld/nether/end and enter x1,z1,x2,z2 per line:
# Cross boundaries: region -1,0,1
-512,-512,512,512
# One nonnegative region
0,0,511,511
Finite floating values in[-30000000,30000000] are accepted. region=floor(block/512): -0.5→-1,0→0,511→0,512→1. Corners may be reversed; never truncate negatives toward zero.
Limits
| Input | Limit/rule |
|---|---|
| UTF-8 areas text | 32 KiB |
| Effective rectangles | 128, excluding blanks/# comments |
| Coordinates | Finite and within world bounds |
| Deduplicated regions | 4096 per dimension |
| Format | Four comma-separated numbers, no extra fields |
Empty/invalid/oversized/ambiguous input blocks the operation rather than producing silently incomplete content. Early regions/selectedRegions compatibility fields are not current areas UI semantics.
Included files
Selected .mca files in region/entities/poi plus essential world/player/data rules are included. For external large-chunk safety, current code includes all c...mcc in the relevant dimension directories, not just referenced files parsed from selected .mca. Size can exceed a rectangle estimate.
Supported recognized Vanilla/Paper/Spigot/26.1 layouts are accepted; ambiguity blocks. SourceScope/config filters can narrow further; scope never expands the source boundary. Inspect archive inventory after changes.
Restore
Partial captures always Overwrite in ordinary/hot Restore. Clean cannot delete omitted regions; other regions do not return to the same time. Stop writes or complete coordination. Verify dimensions/entities/POI/large chunks and real loading on copies first.
Edition boundary
selected-regions is a Java-world scope, not a Bedrock LevelDB or ordinary-folder scope. Bedrock discovery does not convert its layout into Java regions. Close the game and use a full ordinary file backup.