Player cannons

[IntegratedQuantum]

A cannon is a multiblock structure made from a small one block hole surrounded by a two block wall of suitable material:

To activate it the player just jumps into it and places and ignites some explosives at the bottom.
The cannon then shoots the player up into the air. Using a glider, this could allow for fast traveling and exploration, while also giving the player a reason to collect more materials and build some infrastructure around the world.
This would also greatly help with vertical transportation (e.g. going to the sky islands, or going back up from the root world).

The final height of the player depends on the materials of the barrel, the barrel length, the explosive and of course the air resistance.

The barrel can only be made from strong materials. Regular stone must not work (otherwise you could just make a cannon by digging a one block hole in the ground)