Let Me Thru

Let Me Thru makes leaf blocks one-way platforms: entities fall onto the top face as usual but can move through the sides and bottom without being blocked.

Implementation details:

• A mixin on block collision handling swaps leaf collisions to an empty shape unless an entity is descending onto the top surface or is already supported there, keeping the top solid while freeing the other faces.
• Non-entity collision queries still see the normal leaf shape so vanilla interactions such as block placement stay stable.

Known notes:

• Entities that hover without ever moving downward will slip through leaves until they start descending onto the top face. Once supported, the top remains solid while you walk across connected leaf blocks.

Server Validation

✅ Server validation passed - The mod was tested on a real Minecraft server and loaded successfully.