- Thrown objects inherit initial velocity.
- Player and objects have matched terminal
velocity and can free-fall in tandem.
- Thrown objects experience horizontal air
friction too.
When a leaf node is displaced by crushing by a falling node,
instead of ejecting an item, try to place the node itself within
a reasonable distance.
This shoudl reduce the number of stack nodes generated from tree
canopy decay, and should alleviate the inconsistency of leaves
falling sometimes as nodes and sometimes as stacks.
