Optmized data sent during RPC and RSet calls.

- Now is sent the method ID rather the full function name.
- The passed IDs (Node and Method) are compressed so to use less possible space.
- The variant (INT and BOOL) is now encoded and compressed so to use much less data.
- Optimized RPCMode retrieval for GDScript functions.
- Added checksum to assert the methods are the same across peers.

This work has been kindly sponsored by IMVU.

7 files changed, 483 insertions, 79 deletions

diff --git a/modules/gdnative/nativescript/godot_nativescript.cpp b/modules/gdnative/nativescript/godot_nativescript.cpp
index e19e675344..f953206a34 100644
--- a/modules/gdnative/nativescript/godot_nativescript.cpp
+++ b/modules/gdnative/nativescript/godot_nativescript.cpp
@@ -36,6 +36,7 @@
 #include "core/project_settings.h"
 #include "core/variant.h"
 #include "gdnative/gdnative.h"
+#include <stdint.h>
 
 #include "nativescript.h"
 
@@ -67,6 +68,14 @@ void GDAPI godot_nativescript_register_class(void *p_gdnative_handle, const char
 	if (classes->has(p_base)) {
 		desc.base_data = &(*classes)[p_base];
 		desc.base_native_type = desc.base_data->base_native_type;
+
+		const NativeScriptDesc *b = desc.base_data;
+		while (b) {
+			desc.rpc_count += b->rpc_count;
+			desc.rset_count += b->rset_count;
+			b = b->base_data;
+		}
+
 	} else {
 		desc.base_data = NULL;
 		desc.base_native_type = p_base;
@@ -87,10 +96,20 @@ void GDAPI godot_nativescript_register_tool_class(void *p_gdnative_handle, const
 	desc.destroy_func = p_destroy_func;
 	desc.is_tool = true;
 	desc.base = p_base;
+	desc.rpc_count = 0;
+	desc.rset_count = 0;
 
 	if (classes->has(p_base)) {
 		desc.base_data = &(*classes)[p_base];
 		desc.base_native_type = desc.base_data->base_native_type;
+
+		const NativeScriptDesc *b = desc.base_data;
+		while (b) {
+			desc.rpc_count += b->rpc_count;
+			desc.rset_count += b->rset_count;
+			b = b->base_data;
+		}
+
 	} else {
 		desc.base_data = NULL;
 		desc.base_native_type = p_base;
@@ -109,6 +128,11 @@ void GDAPI godot_nativescript_register_method(void *p_gdnative_handle, const cha
 	NativeScriptDesc::Method method;
 	method.method = p_method;
 	method.rpc_mode = p_attr.rpc_type;
+	method.rpc_method_id = UINT16_MAX;
+	if (p_attr.rpc_type != GODOT_METHOD_RPC_MODE_DISABLED) {
+		method.rpc_method_id = E->get().rpc_count;
+		E->get().rpc_count += 1;
+	}
 	method.info = MethodInfo(p_function_name);
 
 	E->get().methods.insert(p_function_name, method);
@@ -125,6 +149,10 @@ void GDAPI godot_nativescript_register_property(void *p_gdnative_handle, const c
 	property.default_value = *(Variant *)&p_attr->default_value;
 	property.getter = p_get_func;
 	property.rset_mode = p_attr->rset_type;
+	if (p_attr->rset_type != GODOT_METHOD_RPC_MODE_DISABLED) {
+		property.rset_property_id = E->get().rset_count;
+		E->get().rset_count += 1;
+	}
 	property.setter = p_set_func;
 	property.info = PropertyInfo((Variant::Type)p_attr->type,
 			p_path,
diff --git a/modules/gdnative/nativescript/nativescript.cpp b/modules/gdnative/nativescript/nativescript.cpp
index 8b06af6c7b..df85155ff5 100644
--- a/modules/gdnative/nativescript/nativescript.cpp
+++ b/modules/gdnative/nativescript/nativescript.cpp
@@ -30,6 +30,8 @@
 
 #include "nativescript.h"
 
+#include <stdint.h>
+
 #include "gdnative/gdnative.h"
 
 #include "core/core_string_names.h"
@@ -402,6 +404,262 @@ void NativeScript::get_script_property_list(List<PropertyInfo> *p_list) const {
 	}
 }
 
+Vector<ScriptNetData> NativeScript::get_rpc_methods() const {
+
+	Vector<ScriptNetData> v;
+
+	NativeScriptDesc *script_data = get_script_desc();
+
+	while (script_data) {
+
+		for (Map<StringName, NativeScriptDesc::Method>::Element *E = script_data->methods.front(); E; E = E->next()) {
+			if (E->get().rpc_mode != GODOT_METHOD_RPC_MODE_DISABLED) {
+				ScriptNetData nd;
+				nd.name = E->key();
+				nd.mode = MultiplayerAPI::RPCMode(E->get().rpc_mode);
+				v.push_back(nd);
+			}
+		}
+
+		script_data = script_data->base_data;
+	}
+
+	return v;
+}
+
+uint16_t NativeScript::get_rpc_method_id(const StringName &p_method) const {
+	NativeScriptDesc *script_data = get_script_desc();
+
+	while (script_data) {
+
+		Map<StringName, NativeScriptDesc::Method>::Element *E = script_data->methods.find(p_method);
+		if (E) {
+			return E->get().rpc_method_id;
+		}
+
+		script_data = script_data->base_data;
+	}
+
+	return UINT16_MAX;
+}
+
+StringName NativeScript::get_rpc_method(uint16_t p_id) const {
+	ERR_FAIL_COND_V(p_id == UINT16_MAX, StringName());
+
+	NativeScriptDesc *script_data = get_script_desc();
+
+	while (script_data) {
+
+		for (Map<StringName, NativeScriptDesc::Method>::Element *E = script_data->methods.front(); E; E = E->next()) {
+			if (E->get().rpc_method_id == p_id) {
+				return E->key();
+			}
+		}
+
+		script_data = script_data->base_data;
+	}
+
+	return StringName();
+}
+
+MultiplayerAPI::RPCMode NativeScript::get_rpc_mode_by_id(uint16_t p_id) const {
+
+	ERR_FAIL_COND_V(p_id == UINT16_MAX, MultiplayerAPI::RPC_MODE_DISABLED);
+
+	NativeScriptDesc *script_data = get_script_desc();
+
+	while (script_data) {
+
+		for (Map<StringName, NativeScriptDesc::Method>::Element *E = script_data->methods.front(); E; E = E->next()) {
+			if (E->get().rpc_method_id == p_id) {
+				switch (E->get().rpc_mode) {
+					case GODOT_METHOD_RPC_MODE_DISABLED:
+						return MultiplayerAPI::RPC_MODE_DISABLED;
+					case GODOT_METHOD_RPC_MODE_REMOTE:
+						return MultiplayerAPI::RPC_MODE_REMOTE;
+					case GODOT_METHOD_RPC_MODE_MASTER:
+						return MultiplayerAPI::RPC_MODE_MASTER;
+					case GODOT_METHOD_RPC_MODE_PUPPET:
+						return MultiplayerAPI::RPC_MODE_PUPPET;
+					case GODOT_METHOD_RPC_MODE_REMOTESYNC:
+						return MultiplayerAPI::RPC_MODE_REMOTESYNC;
+					case GODOT_METHOD_RPC_MODE_MASTERSYNC:
+						return MultiplayerAPI::RPC_MODE_MASTERSYNC;
+					case GODOT_METHOD_RPC_MODE_PUPPETSYNC:
+						return MultiplayerAPI::RPC_MODE_PUPPETSYNC;
+					default:
+						return MultiplayerAPI::RPC_MODE_DISABLED;
+				}
+			}
+		}
+
+		script_data = script_data->base_data;
+	}
+
+	return MultiplayerAPI::RPC_MODE_DISABLED;
+}
+
+MultiplayerAPI::RPCMode NativeScript::get_rpc_mode(const StringName &p_method) const {
+
+	NativeScriptDesc *script_data = get_script_desc();
+
+	while (script_data) {
+
+		Map<StringName, NativeScriptDesc::Method>::Element *E = script_data->methods.find(p_method);
+		if (E) {
+			switch (E->get().rpc_mode) {
+				case GODOT_METHOD_RPC_MODE_DISABLED:
+					return MultiplayerAPI::RPC_MODE_DISABLED;
+				case GODOT_METHOD_RPC_MODE_REMOTE:
+					return MultiplayerAPI::RPC_MODE_REMOTE;
+				case GODOT_METHOD_RPC_MODE_MASTER:
+					return MultiplayerAPI::RPC_MODE_MASTER;
+				case GODOT_METHOD_RPC_MODE_PUPPET:
+					return MultiplayerAPI::RPC_MODE_PUPPET;
+				case GODOT_METHOD_RPC_MODE_REMOTESYNC:
+					return MultiplayerAPI::RPC_MODE_REMOTESYNC;
+				case GODOT_METHOD_RPC_MODE_MASTERSYNC:
+					return MultiplayerAPI::RPC_MODE_MASTERSYNC;
+				case GODOT_METHOD_RPC_MODE_PUPPETSYNC:
+					return MultiplayerAPI::RPC_MODE_PUPPETSYNC;
+				default:
+					return MultiplayerAPI::RPC_MODE_DISABLED;
+			}
+		}
+
+		script_data = script_data->base_data;
+	}
+
+	return MultiplayerAPI::RPC_MODE_DISABLED;
+}
+
+Vector<ScriptNetData> NativeScript::get_rset_properties() const {
+	Vector<ScriptNetData> v;
+
+	NativeScriptDesc *script_data = get_script_desc();
+
+	while (script_data) {
+
+		for (OrderedHashMap<StringName, NativeScriptDesc::Property>::Element E = script_data->properties.front(); E; E = E.next()) {
+			if (E.get().rset_mode != GODOT_METHOD_RPC_MODE_DISABLED) {
+				ScriptNetData nd;
+				nd.name = E.key();
+				nd.mode = MultiplayerAPI::RPCMode(E.get().rset_mode);
+				v.push_back(nd);
+			}
+		}
+		script_data = script_data->base_data;
+	}
+
+	return v;
+}
+
+uint16_t NativeScript::get_rset_property_id(const StringName &p_variable) const {
+	NativeScriptDesc *script_data = get_script_desc();
+
+	while (script_data) {
+
+		OrderedHashMap<StringName, NativeScriptDesc::Property>::Element E = script_data->properties.find(p_variable);
+		if (E) {
+			return E.get().rset_property_id;
+		}
+
+		script_data = script_data->base_data;
+	}
+
+	return UINT16_MAX;
+}
+
+StringName NativeScript::get_rset_property(uint16_t p_id) const {
+	ERR_FAIL_COND_V(p_id == UINT16_MAX, StringName());
+
+	NativeScriptDesc *script_data = get_script_desc();
+
+	while (script_data) {
+
+		for (OrderedHashMap<StringName, NativeScriptDesc::Property>::Element E = script_data->properties.front(); E; E = E.next()) {
+			if (E.get().rset_property_id == p_id) {
+				return E.key();
+			}
+		}
+
+		script_data = script_data->base_data;
+	}
+
+	return StringName();
+}
+
+MultiplayerAPI::RPCMode NativeScript::get_rset_mode_by_id(uint16_t p_id) const {
+
+	ERR_FAIL_COND_V(p_id == UINT16_MAX, MultiplayerAPI::RPC_MODE_DISABLED);
+
+	NativeScriptDesc *script_data = get_script_desc();
+
+	while (script_data) {
+
+		for (OrderedHashMap<StringName, NativeScriptDesc::Property>::Element E = script_data->properties.front(); E; E = E.next()) {
+			if (E.get().rset_property_id == p_id) {
+				switch (E.get().rset_mode) {
+					case GODOT_METHOD_RPC_MODE_DISABLED:
+						return MultiplayerAPI::RPC_MODE_DISABLED;
+					case GODOT_METHOD_RPC_MODE_REMOTE:
+						return MultiplayerAPI::RPC_MODE_REMOTE;
+					case GODOT_METHOD_RPC_MODE_MASTER:
+						return MultiplayerAPI::RPC_MODE_MASTER;
+					case GODOT_METHOD_RPC_MODE_PUPPET:
+						return MultiplayerAPI::RPC_MODE_PUPPET;
+					case GODOT_METHOD_RPC_MODE_REMOTESYNC:
+						return MultiplayerAPI::RPC_MODE_REMOTESYNC;
+					case GODOT_METHOD_RPC_MODE_MASTERSYNC:
+						return MultiplayerAPI::RPC_MODE_MASTERSYNC;
+					case GODOT_METHOD_RPC_MODE_PUPPETSYNC:
+						return MultiplayerAPI::RPC_MODE_PUPPETSYNC;
+					default:
+						return MultiplayerAPI::RPC_MODE_DISABLED;
+				}
+			}
+		}
+
+		script_data = script_data->base_data;
+	}
+
+	return MultiplayerAPI::RPC_MODE_DISABLED;
+}
+
+MultiplayerAPI::RPCMode NativeScript::get_rset_mode(const StringName &p_variable) const {
+
+	NativeScriptDesc *script_data = get_script_desc();
+
+	while (script_data) {
+
+		OrderedHashMap<StringName, NativeScriptDesc::Property>::Element E = script_data->properties.find(p_variable);
+		if (E) {
+			switch (E.get().rset_mode) {
+				case GODOT_METHOD_RPC_MODE_DISABLED:
+					return MultiplayerAPI::RPC_MODE_DISABLED;
+				case GODOT_METHOD_RPC_MODE_REMOTE:
+					return MultiplayerAPI::RPC_MODE_REMOTE;
+				case GODOT_METHOD_RPC_MODE_MASTER:
+					return MultiplayerAPI::RPC_MODE_MASTER;
+				case GODOT_METHOD_RPC_MODE_PUPPET:
+					return MultiplayerAPI::RPC_MODE_PUPPET;
+				case GODOT_METHOD_RPC_MODE_REMOTESYNC:
+					return MultiplayerAPI::RPC_MODE_REMOTESYNC;
+				case GODOT_METHOD_RPC_MODE_MASTERSYNC:
+					return MultiplayerAPI::RPC_MODE_MASTERSYNC;
+				case GODOT_METHOD_RPC_MODE_PUPPETSYNC:
+					return MultiplayerAPI::RPC_MODE_PUPPETSYNC;
+				default:
+					return MultiplayerAPI::RPC_MODE_DISABLED;
+			}
+		}
+
+		script_data = script_data->base_data;
+	}
+
+	return MultiplayerAPI::RPC_MODE_DISABLED;
+}
+
 String NativeScript::get_class_documentation() const {
 	NativeScriptDesc *script_data = get_script_desc();
 
@@ -803,72 +1061,44 @@ Ref<Script> NativeScriptInstance::get_script() const {
 	return script;
 }
 
-MultiplayerAPI::RPCMode NativeScriptInstance::get_rpc_mode(const StringName &p_method) const {
-
-	NativeScriptDesc *script_data = GET_SCRIPT_DESC();
-
-	while (script_data) {
+Vector<ScriptNetData> NativeScriptInstance::get_rpc_methods() const {
+	return script->get_rpc_methods();
+}
 
-		Map<StringName, NativeScriptDesc::Method>::Element *E = script_data->methods.find(p_method);
-		if (E) {
-			switch (E->get().rpc_mode) {
-				case GODOT_METHOD_RPC_MODE_DISABLED:
-					return MultiplayerAPI::RPC_MODE_DISABLED;
-				case GODOT_METHOD_RPC_MODE_REMOTE:
-					return MultiplayerAPI::RPC_MODE_REMOTE;
-				case GODOT_METHOD_RPC_MODE_MASTER:
-					return MultiplayerAPI::RPC_MODE_MASTER;
-				case GODOT_METHOD_RPC_MODE_PUPPET:
-					return MultiplayerAPI::RPC_MODE_PUPPET;
-				case GODOT_METHOD_RPC_MODE_REMOTESYNC:
-					return MultiplayerAPI::RPC_MODE_REMOTESYNC;
-				case GODOT_METHOD_RPC_MODE_MASTERSYNC:
-					return MultiplayerAPI::RPC_MODE_MASTERSYNC;
-				case GODOT_METHOD_RPC_MODE_PUPPETSYNC:
-					return MultiplayerAPI::RPC_MODE_PUPPETSYNC;
-				default:
-					return MultiplayerAPI::RPC_MODE_DISABLED;
-			}
-		}
+uint16_t NativeScriptInstance::get_rpc_method_id(const StringName &p_method) const {
+	return script->get_rpc_method_id(p_method);
+}
 
-		script_data = script_data->base_data;
-	}
+StringName NativeScriptInstance::get_rpc_method(uint16_t p_id) const {
+	return script->get_rpc_method(p_id);
+}
 
-	return MultiplayerAPI::RPC_MODE_DISABLED;
+MultiplayerAPI::RPCMode NativeScriptInstance::get_rpc_mode_by_id(uint16_t p_id) const {
+	return script->get_rpc_mode_by_id(p_id);
 }
 
-MultiplayerAPI::RPCMode NativeScriptInstance::get_rset_mode(const StringName &p_variable) const {
+MultiplayerAPI::RPCMode NativeScriptInstance::get_rpc_mode(const StringName &p_method) const {
+	return script->get_rpc_mode(p_method);
+}
 
-	NativeScriptDesc *script_data = GET_SCRIPT_DESC();
+Vector<ScriptNetData> NativeScriptInstance::get_rset_properties() const {
+	return script->get_rset_properties();
+}
 
-	while (script_data) {
+uint16_t NativeScriptInstance::get_rset_property_id(const StringName &p_variable) const {
+	return script->get_rset_property_id(p_variable);
+}
 
-		OrderedHashMap<StringName, NativeScriptDesc::Property>::Element E = script_data->properties.find(p_variable);
-		if (E) {
-			switch (E.get().rset_mode) {
-				case GODOT_METHOD_RPC_MODE_DISABLED:
-					return MultiplayerAPI::RPC_MODE_DISABLED;
-				case GODOT_METHOD_RPC_MODE_REMOTE:
-					return MultiplayerAPI::RPC_MODE_REMOTE;
-				case GODOT_METHOD_RPC_MODE_MASTER:
-					return MultiplayerAPI::RPC_MODE_MASTER;
-				case GODOT_METHOD_RPC_MODE_PUPPET:
-					return MultiplayerAPI::RPC_MODE_PUPPET;
-				case GODOT_METHOD_RPC_MODE_REMOTESYNC:
-					return MultiplayerAPI::RPC_MODE_REMOTESYNC;
-				case GODOT_METHOD_RPC_MODE_MASTERSYNC:
-					return MultiplayerAPI::RPC_MODE_MASTERSYNC;
-				case GODOT_METHOD_RPC_MODE_PUPPETSYNC:
-					return MultiplayerAPI::RPC_MODE_PUPPETSYNC;
-				default:
-					return MultiplayerAPI::RPC_MODE_DISABLED;
-			}
-		}
+StringName NativeScriptInstance::get_rset_property(uint16_t p_id) const {
+	return script->get_rset_property(p_id);
+}
 
-		script_data = script_data->base_data;
-	}
+MultiplayerAPI::RPCMode NativeScriptInstance::get_rset_mode_by_id(uint16_t p_id) const {
+	return script->get_rset_mode_by_id(p_id);
+}
 
-	return MultiplayerAPI::RPC_MODE_DISABLED;
+MultiplayerAPI::RPCMode NativeScriptInstance::get_rset_mode(const StringName &p_variable) const {
+	return script->get_rset_mode(p_variable);
 }
 
 ScriptLanguage *NativeScriptInstance::get_language() {
diff --git a/modules/gdnative/nativescript/nativescript.h b/modules/gdnative/nativescript/nativescript.h
index cf787e1f6a..2ff08e32cd 100644
--- a/modules/gdnative/nativescript/nativescript.h
+++ b/modules/gdnative/nativescript/nativescript.h
@@ -54,6 +54,7 @@ struct NativeScriptDesc {
 		godot_instance_method method;
 		MethodInfo info;
 		int rpc_mode;
+		uint16_t rpc_method_id;
 		String documentation;
 	};
 	struct Property {
@@ -62,6 +63,7 @@ struct NativeScriptDesc {
 		PropertyInfo info;
 		Variant default_value;
 		int rset_mode;
+		uint16_t rset_property_id;
 		String documentation;
 	};
 
@@ -70,7 +72,9 @@ struct NativeScriptDesc {
 		String documentation;
 	};
 
+	uint16_t rpc_count;
 	Map<StringName, Method> methods;
+	uint16_t rset_count;
 	OrderedHashMap<StringName, Property> properties;
 	Map<StringName, Signal> signals_; // QtCreator doesn't like the name signals
 	StringName base;
@@ -86,7 +90,9 @@ struct NativeScriptDesc {
 	bool is_tool;
 
 	inline NativeScriptDesc() :
+			rpc_count(0),
 			methods(),
+			rset_count(0),
 			properties(),
 			signals_(),
 			base(),
@@ -174,6 +180,18 @@ public:
 	virtual void get_script_method_list(List<MethodInfo> *p_list) const;
 	virtual void get_script_property_list(List<PropertyInfo> *p_list) const;
 
+	virtual Vector<ScriptNetData> get_rpc_methods() const;
+	virtual uint16_t get_rpc_method_id(const StringName &p_method) const;
+	virtual StringName get_rpc_method(uint16_t p_id) const;
+	virtual MultiplayerAPI::RPCMode get_rpc_mode_by_id(uint16_t p_id) const;
+	virtual MultiplayerAPI::RPCMode get_rpc_mode(const StringName &p_method) const;
+
+	virtual Vector<ScriptNetData> get_rset_properties() const;
+	virtual uint16_t get_rset_property_id(const StringName &p_variable) const;
+	virtual StringName get_rset_property(uint16_t p_id) const;
+	virtual MultiplayerAPI::RPCMode get_rset_mode_by_id(uint16_t p_id) const;
+	virtual MultiplayerAPI::RPCMode get_rset_mode(const StringName &p_variable) const;
+
 	String get_class_documentation() const;
 	String get_method_documentation(const StringName &p_method) const;
 	String get_signal_documentation(const StringName &p_signal_name) const;
@@ -210,8 +228,19 @@ public:
 	virtual void notification(int p_notification);
 	String to_string(bool *r_valid);
 	virtual Ref<Script> get_script() const;
+
+	virtual Vector<ScriptNetData> get_rpc_methods() const;
+	virtual uint16_t get_rpc_method_id(const StringName &p_method) const;
+	virtual StringName get_rpc_method(uint16_t p_id) const;
+	virtual MultiplayerAPI::RPCMode get_rpc_mode_by_id(uint16_t p_id) const;
 	virtual MultiplayerAPI::RPCMode get_rpc_mode(const StringName &p_method) const;
+
+	virtual Vector<ScriptNetData> get_rset_properties() const;
+	virtual uint16_t get_rset_property_id(const StringName &p_variable) const;
+	virtual StringName get_rset_property(uint16_t p_id) const;
+	virtual MultiplayerAPI::RPCMode get_rset_mode_by_id(uint16_t p_id) const;
 	virtual MultiplayerAPI::RPCMode get_rset_mode(const StringName &p_variable) const;
+
 	virtual ScriptLanguage *get_language();
 
 	virtual void call_multilevel(const StringName &p_method, const Variant **p_args, int p_argcount);
diff --git a/modules/gdnative/pluginscript/pluginscript_instance.cpp b/modules/gdnative/pluginscript/pluginscript_instance.cpp
index 0d6dac3268..26a1d5f47a 100644
--- a/modules/gdnative/pluginscript/pluginscript_instance.cpp
+++ b/modules/gdnative/pluginscript/pluginscript_instance.cpp
@@ -93,10 +93,42 @@ void PluginScriptInstance::notification(int p_notification) {
 	_desc->notification(_data, p_notification);
 }
 
+Vector<ScriptNetData> PluginScriptInstance::get_rpc_methods() const {
+	return _script->get_rpc_methods();
+}
+
+uint16_t PluginScriptInstance::get_rpc_method_id(const StringName &p_variable) const {
+	return _script->get_rpc_method_id(p_variable);
+}
+
+StringName PluginScriptInstance::get_rpc_method(uint16_t p_id) const {
+	return _script->get_rpc_method(p_id);
+}
+
+MultiplayerAPI::RPCMode PluginScriptInstance::get_rpc_mode_by_id(uint16_t p_id) const {
+	return _script->get_rpc_mode_by_id(p_id);
+}
+
 MultiplayerAPI::RPCMode PluginScriptInstance::get_rpc_mode(const StringName &p_method) const {
 	return _script->get_rpc_mode(p_method);
 }
 
+Vector<ScriptNetData> PluginScriptInstance::get_rset_properties() const {
+	return _script->get_rset_properties();
+}
+
+uint16_t PluginScriptInstance::get_rset_property_id(const StringName &p_variable) const {
+	return _script->get_rset_property_id(p_variable);
+}
+
+StringName PluginScriptInstance::get_rset_property(uint16_t p_id) const {
+	return _script->get_rset_property(p_id);
+}
+
+MultiplayerAPI::RPCMode PluginScriptInstance::get_rset_mode_by_id(uint16_t p_id) const {
+	return _script->get_rset_mode_by_id(p_id);
+}
+
 MultiplayerAPI::RPCMode PluginScriptInstance::get_rset_mode(const StringName &p_variable) const {
 	return _script->get_rset_mode(p_variable);
 }
diff --git a/modules/gdnative/pluginscript/pluginscript_instance.h b/modules/gdnative/pluginscript/pluginscript_instance.h
index dc1229a44d..154bebd72a 100644
--- a/modules/gdnative/pluginscript/pluginscript_instance.h
+++ b/modules/gdnative/pluginscript/pluginscript_instance.h
@@ -76,7 +76,16 @@ public:
 
 	void set_path(const String &p_path);
 
+	virtual Vector<ScriptNetData> get_rpc_methods() const;
+	virtual uint16_t get_rpc_method_id(const StringName &p_method) const;
+	virtual StringName get_rpc_method(uint16_t p_id) const;
+	virtual MultiplayerAPI::RPCMode get_rpc_mode_by_id(uint16_t p_id) const;
 	virtual MultiplayerAPI::RPCMode get_rpc_mode(const StringName &p_method) const;
+
+	virtual Vector<ScriptNetData> get_rset_properties() const;
+	virtual uint16_t get_rset_property_id(const StringName &p_variable) const;
+	virtual StringName get_rset_property(uint16_t p_id) const;
+	virtual MultiplayerAPI::RPCMode get_rset_mode_by_id(uint16_t p_id) const;
 	virtual MultiplayerAPI::RPCMode get_rset_mode(const StringName &p_variable) const;
 
 	virtual void refcount_incremented();
diff --git a/modules/gdnative/pluginscript/pluginscript_script.cpp b/modules/gdnative/pluginscript/pluginscript_script.cpp
index cc5bdee0a1..c370062262 100644
--- a/modules/gdnative/pluginscript/pluginscript_script.cpp
+++ b/modules/gdnative/pluginscript/pluginscript_script.cpp
@@ -34,6 +34,8 @@
 #include "pluginscript_instance.h"
 #include "pluginscript_script.h"
 
+#include <stdint.h>
+
 #ifdef DEBUG_ENABLED
 #define __ASSERT_SCRIPT_REASON "Cannot retrieve PluginScript class for this script, is your code correct?"
 #define ASSERT_SCRIPT_VALID()                                       \
@@ -298,18 +300,31 @@ Error PluginScript::reload(bool p_keep_state) {
 		_member_lines[*key] = (*members)[*key];
 	}
 	Array *methods = (Array *)&manifest.methods;
+	_rpc_methods.clear();
+	_rpc_variables.clear();
+	if (_ref_base_parent.is_valid()) {
+		_rpc_methods = _ref_base_parent->get_rpc_methods();
+		_rpc_variables = _ref_base_parent->get_rset_properties();
+	}
 	for (int i = 0; i < methods->size(); ++i) {
 		Dictionary v = (*methods)[i];
 		MethodInfo mi = MethodInfo::from_dict(v);
 		_methods_info[mi.name] = mi;
 		// rpc_mode is passed as an optional field and is not part of MethodInfo
 		Variant var = v["rpc_mode"];
-		if (var == Variant()) {
-			_methods_rpc_mode[mi.name] = MultiplayerAPI::RPC_MODE_DISABLED;
-		} else {
-			_methods_rpc_mode[mi.name] = MultiplayerAPI::RPCMode(int(var));
+		if (var != Variant()) {
+			ScriptNetData nd;
+			nd.name = mi.name;
+			nd.mode = MultiplayerAPI::RPCMode(int(var));
+			if (_rpc_methods.find(nd) == -1) {
+				_rpc_methods.push_back(nd);
+			}
 		}
 	}
+
+	// Sort so we are 100% that they are always the same.
+	_rpc_methods.sort_custom<SortNetData>();
+
 	Array *signals = (Array *)&manifest.signals;
 	for (int i = 0; i < signals->size(); ++i) {
 		Variant v = (*signals)[i];
@@ -324,13 +339,19 @@ Error PluginScript::reload(bool p_keep_state) {
 		_properties_default_values[pi.name] = v["default_value"];
 		// rset_mode is passed as an optional field and is not part of PropertyInfo
 		Variant var = v["rset_mode"];
-		if (var == Variant()) {
-			_methods_rpc_mode[pi.name] = MultiplayerAPI::RPC_MODE_DISABLED;
-		} else {
-			_methods_rpc_mode[pi.name] = MultiplayerAPI::RPCMode(int(var));
+		if (var != Variant()) {
+			ScriptNetData nd;
+			nd.name = pi.name;
+			nd.mode = MultiplayerAPI::RPCMode(int(var));
+			if (_rpc_variables.find(nd) == -1) {
+				_rpc_variables.push_back(nd);
+			}
 		}
 	}
 
+	// Sort so we are 100% that they are always the same.
+	_rpc_variables.sort_custom<SortNetData>();
+
 #ifdef TOOLS_ENABLED
 /*for (Set<PlaceHolderScriptInstance*>::Element *E=placeholders.front();E;E=E->next()) {
 
@@ -455,24 +476,70 @@ int PluginScript::get_member_line(const StringName &p_member) const {
 		return -1;
 }
 
-MultiplayerAPI::RPCMode PluginScript::get_rpc_mode(const StringName &p_method) const {
+Vector<ScriptNetData> PluginScript::get_rpc_methods() const {
+	return _rpc_methods;
+}
+
+uint16_t PluginScript::get_rpc_method_id(const StringName &p_method) const {
+	ASSERT_SCRIPT_VALID_V(UINT16_MAX);
+	for (int i = 0; i < _rpc_methods.size(); i++) {
+		if (_rpc_methods[i].name == p_method) {
+			return i;
+		}
+	}
+	return UINT16_MAX;
+}
+
+StringName PluginScript::get_rpc_method(const uint16_t p_rpc_method_id) const {
+	ASSERT_SCRIPT_VALID_V(StringName());
+	if (p_rpc_method_id >= _rpc_methods.size())
+		return StringName();
+	return _rpc_methods[p_rpc_method_id].name;
+}
+
+MultiplayerAPI::RPCMode PluginScript::get_rpc_mode_by_id(const uint16_t p_rpc_method_id) const {
 	ASSERT_SCRIPT_VALID_V(MultiplayerAPI::RPC_MODE_DISABLED);
-	const Map<StringName, MultiplayerAPI::RPCMode>::Element *e = _methods_rpc_mode.find(p_method);
-	if (e != NULL) {
-		return e->get();
-	} else {
+	if (p_rpc_method_id >= _rpc_methods.size())
 		return MultiplayerAPI::RPC_MODE_DISABLED;
+	return _rpc_methods[p_rpc_method_id].mode;
+}
+
+MultiplayerAPI::RPCMode PluginScript::get_rpc_mode(const StringName &p_method) const {
+	ASSERT_SCRIPT_VALID_V(MultiplayerAPI::RPC_MODE_DISABLED);
+	return get_rpc_mode_by_id(get_rpc_method_id(p_method));
+}
+
+Vector<ScriptNetData> PluginScript::get_rset_properties() const {
+	return _rpc_variables;
+}
+
+uint16_t PluginScript::get_rset_property_id(const StringName &p_property) const {
+	ASSERT_SCRIPT_VALID_V(UINT16_MAX);
+	for (int i = 0; i < _rpc_variables.size(); i++) {
+		if (_rpc_variables[i].name == p_property) {
+			return i;
+		}
 	}
+	return UINT16_MAX;
 }
 
-MultiplayerAPI::RPCMode PluginScript::get_rset_mode(const StringName &p_variable) const {
+StringName PluginScript::get_rset_property(const uint16_t p_rset_property_id) const {
+	ASSERT_SCRIPT_VALID_V(StringName());
+	if (p_rset_property_id >= _rpc_variables.size())
+		return StringName();
+	return _rpc_variables[p_rset_property_id].name;
+}
+
+MultiplayerAPI::RPCMode PluginScript::get_rset_mode_by_id(const uint16_t p_rset_property_id) const {
 	ASSERT_SCRIPT_VALID_V(MultiplayerAPI::RPC_MODE_DISABLED);
-	const Map<StringName, MultiplayerAPI::RPCMode>::Element *e = _variables_rset_mode.find(p_variable);
-	if (e != NULL) {
-		return e->get();
-	} else {
+	if (p_rset_property_id >= _rpc_variables.size())
 		return MultiplayerAPI::RPC_MODE_DISABLED;
-	}
+	return _rpc_variables[p_rset_property_id].mode;
+}
+
+MultiplayerAPI::RPCMode PluginScript::get_rset_mode(const StringName &p_variable) const {
+	ASSERT_SCRIPT_VALID_V(MultiplayerAPI::RPC_MODE_DISABLED);
+	return get_rset_mode_by_id(get_rset_property_id(p_variable));
 }
 
 PluginScript::PluginScript() :
diff --git a/modules/gdnative/pluginscript/pluginscript_script.h b/modules/gdnative/pluginscript/pluginscript_script.h
index f67c88c794..f6bca8a9cb 100644
--- a/modules/gdnative/pluginscript/pluginscript_script.h
+++ b/modules/gdnative/pluginscript/pluginscript_script.h
@@ -60,8 +60,8 @@ private:
 	Map<StringName, PropertyInfo> _properties_info;
 	Map<StringName, MethodInfo> _signals_info;
 	Map<StringName, MethodInfo> _methods_info;
-	Map<StringName, MultiplayerAPI::RPCMode> _variables_rset_mode;
-	Map<StringName, MultiplayerAPI::RPCMode> _methods_rpc_mode;
+	Vector<ScriptNetData> _rpc_methods;
+	Vector<ScriptNetData> _rpc_variables;
 
 	Set<Object *> _instances;
 	//exported members
@@ -118,8 +118,17 @@ public:
 
 	virtual int get_member_line(const StringName &p_member) const;
 
-	MultiplayerAPI::RPCMode get_rpc_mode(const StringName &p_method) const;
-	MultiplayerAPI::RPCMode get_rset_mode(const StringName &p_variable) const;
+	virtual Vector<ScriptNetData> get_rpc_methods() const;
+	virtual uint16_t get_rpc_method_id(const StringName &p_method) const;
+	virtual StringName get_rpc_method(const uint16_t p_rpc_method_id) const;
+	virtual MultiplayerAPI::RPCMode get_rpc_mode_by_id(const uint16_t p_rpc_method_id) const;
+	virtual MultiplayerAPI::RPCMode get_rpc_mode(const StringName &p_method) const;
+
+	virtual Vector<ScriptNetData> get_rset_properties() const;
+	virtual uint16_t get_rset_property_id(const StringName &p_property) const;
+	virtual StringName get_rset_property(const uint16_t p_rset_property_id) const;
+	virtual MultiplayerAPI::RPCMode get_rset_mode_by_id(const uint16_t p_rpc_method_id) const;
+	virtual MultiplayerAPI::RPCMode get_rset_mode(const StringName &p_variable) const;
 
 	PluginScript();
 	void init(PluginScriptLanguage *language);