Safety-guards for CSM callbacks to abort on a bad implementation
Only run callbacks when the mods are loaded (and with it: builtin)
Duplication checks inside constructors
Remove unusable 'minetest.setting_*' from client_lua_api.txt
lua_api.txt:
- Define the 'mod.conf' format
- More precise 'settingtypes.txt' format reference
- Document special sound files 'player_*damage'
- Group, sort and add 'not_in_creative_inventory' special group
- Define the 'Settings' format
- Warning about incorrect byte saving in 'StorageRef'
- Note about non-persistent player definitions fields
- Better 'leveldiff' and 'level' group description
Before opening the file for writing, its file size is tested. If it exceeds 50 MB, it is moved to debut.txt.1, otherwise the log is appended to the old messages. An old debut.txt.1 is removed if it already exists.
Improve 'readable' setting names for waving water settings.
Change 'near plane' to 'near clipping plane'.
Document physics settings.
mgv6_spflags:
Change 'new biome system' to 'snowbiomes flag' for clarity.
Add missing 'noflat' flag to default flags.
Calculate 'i' inside 'y' loop to avoid 'i' and 'y' becoming
out of step due to the uses of 'continue'.
Simplify calculation of 'p2d' when coordinates are inverted.
Remove some unnecessary and unreliable 'index out of
voxelmanip' checks.
Move calculation of '&em' out of loops.
For 'Loop further down until not air' code, use y coordinate
to detect being out of voxelmanip, instead of checking index
which did not detect that.
Add and improve comments.
Indent the 'for (;; y--) {' loop.
Improve format and fix codestyle issues.
This change reduces the amount of sent data towards clients. Inventory lists that are already known to the player are skipped, saving quite some data over time.
Raises protocol version to 38 to ensure correct backwards-compatible code.
'player.png' and 'player_back.png' are hardcoded into the engine as
the default appearence of the player object, so the textures should
be present in the engine.
This results in a functional fallback sprite player for when a game
has no player appearence related code.
