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[MP] Implement "watched" properties.

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Checked at "delta_interval" (default = every frame), synchronized
(reliably) if changes are detected.
This commit is contained in:
Fabio Alessandrelli
2023-03-28 09:30:58 +02:00
parent f581f21dd6
commit f1e0d50841
13 changed files with 422 additions and 50 deletions
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15
modules/multiplayer/scene_replication_interface.h
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@@ -62,6 +62,7 @@ private:
struct PeerInfo {
HashSet<ObjectID> sync_nodes;
HashSet<ObjectID> spawn_nodes;
HashMap<ObjectID, uint64_t> last_watch_usecs;
HashMap<uint32_t, ObjectID> recv_sync_ids;
HashMap<uint32_t, ObjectID> recv_nodes;
uint16_t last_sent_sync = 0;
@@ -88,12 +89,17 @@ private:
SceneMultiplayer *multiplayer = nullptr;
PackedByteArray packet_cache;
int sync_mtu = 1350; // Highly dependent on underlying protocol.
int delta_mtu = 65535;
TrackedNode &_track(const ObjectID &p_id);
void _untrack(const ObjectID &p_id);
void _node_ready(const ObjectID &p_oid);
void _send_sync(int p_peer, const HashSet<ObjectID> p_synchronizers, uint16_t p_sync_net_time, uint64_t p_msec);
bool _verify_synchronizer(int p_peer, MultiplayerSynchronizer *p_sync, uint32_t &r_net_id);
MultiplayerSynchronizer *_find_synchronizer(int p_peer, uint32_t p_net_ida);
void _send_sync(int p_peer, const HashSet<ObjectID> p_synchronizers, uint16_t p_sync_net_time, uint64_t p_usec);
void _send_delta(int p_peer, const HashSet<ObjectID> p_synchronizers, uint64_t p_usec, const HashMap<ObjectID, uint64_t> p_last_watch_usecs);
Error _make_spawn_packet(Node *p_node, MultiplayerSpawner *p_spawner, int &r_len);
Error _make_despawn_packet(Node *p_node, int &r_len);
Error _send_raw(const uint8_t *p_buffer, int p_size, int p_peer, bool p_reliable);
@@ -127,9 +133,16 @@ public:
Error on_spawn_receive(int p_from, const uint8_t *p_buffer, int p_buffer_len);
Error on_despawn_receive(int p_from, const uint8_t *p_buffer, int p_buffer_len);
Error on_sync_receive(int p_from, const uint8_t *p_buffer, int p_buffer_len);
Error on_delta_receive(int p_from, const uint8_t *p_buffer, int p_buffer_len);
bool is_rpc_visible(const ObjectID &p_oid, int p_peer) const;
void set_max_sync_packet_size(int p_size);
int get_max_sync_packet_size() const;
void set_max_delta_packet_size(int p_size);
int get_max_delta_packet_size() const;
SceneReplicationInterface(SceneMultiplayer *p_multiplayer) {
multiplayer = p_multiplayer;
}