Previously, ServerEnv created a player instance before they're fully initialized.
This commit moves all initialization steps and callbacks into TOSERVER_CLIENT_READY
^ which includes StageTwoClientInit for player loading or creation
Upon disconnect, RemotePlayer still had a peer ID assigned even though
the PlayerSAO object was maked as gone (for removal). This commit makes
that the following always holds true:
(!sao || sao->isGone()) === (peer_id == PEER_ID_INEXISTENT)
This should improve compilation speed.
Things changed:
* Prefer forward-declarations in headers.
* Move header-includes out of headers if possible.
* Move some functions definitions out of headers.
* Put some member variables into unique_ptrs (see Client).
Move LuaEntitySAO to a new dedicated file
Drop TestSAO (useless object)
Drop the old static startup initialized SAO factory, which was pretty useless.
This factory was using a std::map for 2 elements, now just use a simple condition owned by ServerEnvironment, which will be lightweight, that will also drop a one time useful test on each LuaEntitySAO creation. This should reduce server load on massive SAO creation
