Mod 1.12.2 for personal player worlds

This mod is designed to give every player on the server their own personal world, which can only be accessed by the world owner and players added to the whitelist.

Some features of the mod:

1. Teleport block (range is configurable in the config file)

2. Time in the overworld (configurable in the config file)

3. "Personal world" whitelist

4. Access to dimensions — ability to enable/disable portals and commands to the End and Nether for personal worlds.

5. Exit block system — requires the player to stand near an exit block to return to the overworld; configurable radius, block texture, and return delay.

6. World configuration — allows setting an admin world ID and dimension type; you can also specify a world generation template/scheme.

7. Block limits — restricts the number of specific blocks (ores, water, lava, spawners, etc.) that can be placed in personal worlds.

8. Overworld time limit — applies progressive negative effects (slowness, poisoning, drying/withering, instant damage) for staying too long in the overworld; configurable stages, amplifier levels, and time thresholds.

9. Overworld spawn — allows configuration of the safe spawn platform coordinates and minimum distance between players upon return.

10. World borders — separate configurable radii for the overworld and for personal worlds (territory restrictions).

And many other features.
All settings are done through the config files.