* `basic_debug`: Allow showing basic debug info that might give a gameplay advantage.
This includes map seed, player position, look direction, the pointed node and block bounds.
Does not affect players with the `debug` privilege.
+ * `chat`: Modifies the client's permission to view chat on the HUD.
+ The client may locally elect to not view chat. Does not affect the console.
* If a flag equals `nil`, the flag is not modified
* `hud_get_flags()`: returns a table of player HUD flags with boolean values.
* See `hud_set_flags` for a list of flags that can be toggled.