There has been some discussion on the IRC channel about the game measurement system. This impacts 3D modellers and texture artists, so we should discuss this here.
In Minecraft, the size of a block is 1 metre, and this can be considered the "unit" by which everything else is measured. One map unit is one meter (1mu = 1m).
Valve games (and many Unreal games) have a map unit of around 0.75". (In fact, in Valve games it's exactly
0.75"; see here for all the gory details
.) The range over which measurements have to work is from the size of a texture pixel (which is a little under 5mm in the Valve system; this is probably a bit large by modern standards) up to the height of a normal room (8' or a little over 2.4m; perhaps we should check the International Building Code?). Numbers in this range need to be "nice" for both texturers and modellers.
The consensus on the IRC channel seems to be that we should base our measurement system on metric, because it just makes sense. 1mu = 1cm and 1mu = 10cm have both been proposed.
Does anyone with any experience in this area have suggestions?
At the moment, we just need to settle on a base measurement. Things like walk/run speed, maximum jump height and so on will probably need to be tuned as we shake out the gameplay, so we don't need to bother with these right now.