What is it?

This mod prevents players from using trapdoors, fence gate, doors, flower pots in Adventure mode. Simple!
It can be turned on and off by gamerule command.

Useful for Parkour server, or Adventure Map server.

Usage:

/gamerule AdventureBlock_Trapdoor [true|false]
/gamerule AdventureBlock_Door [true|false]
/gamerule AdventureBlock_FenceGate [true|false]
/gamerule AdventureBlock_FlowerPot [true|false]

Enjoy!