Adds player fall damage (voxel.js plugin)
Requires voxel-health, and a voxel-engine with voxel-physical#4deb6d9
Hurts the player when falling large distances, higher distances (Y dimension)
hurt more. Damage received can be configured with the options
blocksPerUnitDamage (default 4) and damageMultiplier (default 1).
MIT