1 files changed, 87 insertions, 0 deletions
diff --git a/core/io/multiplayer_api.h b/core/io/multiplayer_api.h
new file mode 100644
index 000000000..e7c6ffbea
--- /dev/null
+++ b/core/io/multiplayer_api.h
@@ -0,0 +1,87 @@
+#ifndef MULTIPLAYER_PROTOCOL_H
+#define MULTIPLAYER_PROTOCOL_H
+
+#include "core/io/networked_multiplayer_peer.h"
+#include "core/reference.h"
+
+class MultiplayerAPI : public Reference {
+
+	GDCLASS(MultiplayerAPI, Reference);
+
+private:
+	//path sent caches
+	struct PathSentCache {
+		Map<int, bool> confirmed_peers;
+		int id;
+	};
+
+	//path get caches
+	struct PathGetCache {
+		struct NodeInfo {
+			NodePath path;
+			ObjectID instance;
+		};
+
+		Map<int, NodeInfo> nodes;
+	};
+
+	Ref<NetworkedMultiplayerPeer> network_peer;
+	int rpc_sender_id;
+	Set<int> connected_peers;
+	HashMap<NodePath, PathSentCache> path_send_cache;
+	Map<int, PathGetCache> path_get_cache;
+	int last_send_cache_id;
+	Vector<uint8_t> packet_cache;
+	Node *root_node;
+
+protected:
+	static void _bind_methods();
+
+	void _process_packet(int p_from, const uint8_t *p_packet, int p_packet_len);
+	void _process_simplify_path(int p_from, const uint8_t *p_packet, int p_packet_len);
+	void _process_confirm_path(int p_from, const uint8_t *p_packet, int p_packet_len);
+	Node *_process_get_node(int p_from, const uint8_t *p_packet, int p_packet_len);
+	void _process_rpc(Node *p_node, const StringName &p_name, int p_from, const uint8_t *p_packet, int p_packet_len, int p_offset);
+	void _process_rset(Node *p_node, const StringName &p_name, int p_from, const uint8_t *p_packet, int p_packet_len, int p_offset);
+
+	void _send_rpc(Node *p_from, int p_to, bool p_unreliable, bool p_set, const StringName &p_name, const Variant **p_arg, int p_argcount);
+	bool _send_confirm_path(NodePath p_path, PathSentCache *psc, int p_from);
+
+public:
+	enum NetworkCommands {
+		NETWORK_COMMAND_REMOTE_CALL,
+		NETWORK_COMMAND_REMOTE_SET,
+		NETWORK_COMMAND_SIMPLIFY_PATH,
+		NETWORK_COMMAND_CONFIRM_PATH,
+	};
+
+	void poll();
+	void clear();
+	void set_root_node(Node *p_node);
+	void set_network_peer(const Ref<NetworkedMultiplayerPeer> &p_peer);
+	Ref<NetworkedMultiplayerPeer> get_network_peer() const;
+
+	// Called by Node.rpc
+	void rpcp(Node *p_node, int p_peer_id, bool p_unreliable, const StringName &p_method, const Variant **p_arg, int p_argcount);
+	// Called by Node.rset
+	void rsetp(Node *p_node, int p_peer_id, bool p_unreliable, const StringName &p_property, const Variant &p_value);
+
+	void add_peer(int p_id);
+	void del_peer(int p_id);
+	void connected_to_server();
+	void connection_failed();
+	void server_disconnected();
+
+	bool has_network_peer() const { return network_peer.is_valid(); }
+	Vector<int> get_network_connected_peers() const;
+	int get_rpc_sender_id() const { return rpc_sender_id; }
+	int get_network_unique_id() const;
+	bool is_network_server() const;
+	void set_refuse_new_network_connections(bool p_refuse);
+	bool is_refusing_new_network_connections() const;
+
+	MultiplayerAPI();
+	~MultiplayerAPI();
+};
+
+#endif // MULTIPLAYER_PROTOCOL_H