Add networked crab gathering prototype

network/network_item_use_service.gd

@@ -4,6 +4,7 @@ extends Node
 const FishingRodDataType = preload("res://items/fishing_rod_data.gd")
 
 const ArtShopStockType = preload("res://economy/art_shop_stock.gd")
+const FishingShopStockType = preload("res://economy/fishing_shop_stock.gd")
 
 const MAX_LEDGER_ENTRIES: int = 64
 
@@ -292,6 +293,13 @@ func get_effects_for_peer(peer_id: int) -> PlayerItemEffects:
 	return avatar.item_effects if avatar != null else null
 
 
+func get_equipped_item_id(peer_id: int) -> StringName:
+	var state: Dictionary = _equipped_states.get(peer_id, {})
+	if state.is_empty() or not bool(state.get("owns_item", false)):
+		return StringName()
+	return StringName(str(state.get("item_id", "")))
+
+
 func submit_local_equipped(item_id: StringName, owns_item: bool) -> void:
 	if _session == null or not _session.is_gameplay_session_active():
 		return
@@ -377,6 +385,10 @@ func _apply_equipped(data: Dictionary) -> void:
 			item.icon if item != null else null,
 			item_id == ArtShopStockType.ART_KIT_ITEM_ID and bool(data["owns_item"]),
 		)
+		avatar.set_active_catching_net(
+			item_id == FishingShopStockType.CRAB_NET_ID
+			and bool(data["owns_item"]),
+		)
 	equipped_state_changed.emit(
 		peer_id, StringName(str(data["item_id"])), int(data["category"])
 	)

network/network_protocol.gd

@@ -1,7 +1,7 @@
 class_name NetworkProtocol
 extends RefCounted
 
-const PROTOCOL_VERSION: int = 4
+const PROTOCOL_VERSION: int = 5
 const GAME_BUILD: String = "prealpha"
 const MAX_GAME_VERSION_LENGTH: int = 64
 const MAX_DISPLAY_NAME_LENGTH: int = 24
@@ -25,6 +25,7 @@ const WORLD_TIME_CAPABILITY: String = "world_time_v1"
 const WORLD_WEATHER_CAPABILITY: String = "world_weather_v1"
 const FISH_QUALITY_CAPABILITY: String = "fish_quality_v1"
 const JOBS_CAPABILITY: String = "jobs_v1"
+const WORLD_SPAWN_CAPABILITY: String = "world_spawn_envelope_v1"
 
 enum RejectionCode {
 	NONE,
@@ -172,6 +173,7 @@ static func make_client_hello(
 			WORLD_TIME_CAPABILITY,
 			WORLD_WEATHER_CAPABILITY,
 			JOBS_CAPABILITY,
+			WORLD_SPAWN_CAPABILITY,
 		]),
 		"cosmetic_snapshot": cosmetic_snapshot,
 		"identity_fingerprint": identity_fingerprint,
@@ -313,6 +315,7 @@ static func make_server_hello(
 			WORLD_TIME_CAPABILITY,
 			WORLD_WEATHER_CAPABILITY,
 			JOBS_CAPABILITY,
+			WORLD_SPAWN_CAPABILITY,
 			"chat_v1",
 			"mail_v1",
 			"profile_v1",

network/network_session.gd

@@ -267,6 +267,7 @@ func _register_player_host() -> void:
 			NetworkProtocol.WORLD_TIME_CAPABILITY,
 			NetworkProtocol.WORLD_WEATHER_CAPABILITY,
 			NetworkProtocol.JOBS_CAPABILITY,
+			NetworkProtocol.WORLD_SPAWN_CAPABILITY,
 		]),
 	)
 	_registry.update_appearance(1, _local_appearance_snapshot)
@@ -555,6 +556,7 @@ func supports_server_capability(capability: StringName) -> bool:
 			NetworkProtocol.SURFACE_DRAWING_CAPABILITY,
 			NetworkProtocol.WORLD_TIME_CAPABILITY,
 			NetworkProtocol.WORLD_WEATHER_CAPABILITY,
+			NetworkProtocol.WORLD_SPAWN_CAPABILITY,
 			"chat_v1",
 			"mail_v1",
 			"profile_v1",

network/network_world_spawn_protocol.gd

@@ -0,0 +1,94 @@
+class_name NetworkWorldSpawnProtocol
+extends RefCounted
+
+const CAPABILITY: StringName = &"world_spawn_envelope_v1"
+const ENVELOPE_VERSION: int = 1
+const RELIABLE_CHANNEL: int = NetworkProtocol.ITEM_RELIABLE_CHANNEL
+const SNAPSHOT_CHANNEL: int = 4
+const MAX_SESSION_ID_LENGTH: int = 96
+const MAX_EVENT_ID_LENGTH: int = 48
+const MAX_ENTITY_ID_LENGTH: int = 128
+const MAX_TYPE_ID_LENGTH: int = 96
+const MAX_ENTITIES_PER_SNAPSHOT: int = 128
+## Keeps unreliable movement envelopes below ENet's practical MTU while
+## allowing reliable population envelopes to carry a larger initial state.
+const SNAPSHOT_ENTITIES_PER_ENVELOPE: int = 4
+
+
+static func make_envelope(
+	session_id: String,
+	sequence: int,
+	event_id: StringName,
+	payload: Dictionary,
+) -> Dictionary:
+	return {
+		"envelope_version": ENVELOPE_VERSION,
+		"session_id": session_id,
+		"sequence": sequence,
+		"event_id": str(event_id),
+		"payload": payload.duplicate(true),
+	}
+
+
+static func validate_envelope(value: Variant) -> bool:
+	if typeof(value) != TYPE_DICTIONARY:
+		return false
+	var data: Dictionary = value
+	return (
+		typeof(data.get("envelope_version")) == TYPE_INT
+		and int(data["envelope_version"]) == ENVELOPE_VERSION
+		and typeof(data.get("session_id")) == TYPE_STRING
+		and not str(data["session_id"]).is_empty()
+		and str(data["session_id"]).length() <= MAX_SESSION_ID_LENGTH
+		and typeof(data.get("sequence")) == TYPE_INT
+		and int(data["sequence"]) >= 0
+		and typeof(data.get("event_id")) == TYPE_STRING
+		and not str(data["event_id"]).is_empty()
+		and str(data["event_id"]).length() <= MAX_EVENT_ID_LENGTH
+		and typeof(data.get("payload")) == TYPE_DICTIONARY
+	)
+
+
+static func validate_entity_state(value: Variant) -> bool:
+	if typeof(value) != TYPE_DICTIONARY:
+		return false
+	var data: Dictionary = value
+	var position: Variant = data.get("position")
+	if typeof(position) != TYPE_ARRAY or position.size() != 3:
+		return false
+	for component: Variant in position:
+		if typeof(component) not in [TYPE_FLOAT, TYPE_INT]:
+			return false
+		if not is_finite(float(component)):
+			return false
+	return (
+		typeof(data.get("entity_id")) == TYPE_STRING
+		and not str(data["entity_id"]).is_empty()
+		and str(data["entity_id"]).length() <= MAX_ENTITY_ID_LENGTH
+		and typeof(data.get("type_id")) == TYPE_STRING
+		and not str(data["type_id"]).is_empty()
+		and str(data["type_id"]).length() <= MAX_TYPE_ID_LENGTH
+		and typeof(data.get("yaw")) in [TYPE_FLOAT, TYPE_INT]
+		and is_finite(float(data["yaw"]))
+		and typeof(data.get("revision")) == TYPE_INT
+		and int(data["revision"]) >= 0
+	)
+
+
+static func vector3_to_array(value: Vector3) -> Array[float]:
+	return [value.x, value.y, value.z]
+
+
+static func array_to_vector3(value: Variant) -> Vector3:
+	if typeof(value) != TYPE_ARRAY or value.size() != 3:
+		return Vector3(INF, INF, INF)
+	for component: Variant in value:
+		if typeof(component) not in [TYPE_FLOAT, TYPE_INT]:
+			return Vector3(INF, INF, INF)
+		if not is_finite(float(component)):
+			return Vector3(INF, INF, INF)
+	return _array_to_vector3(value)
+
+
+static func _array_to_vector3(value: Array) -> Vector3:
+	return Vector3(float(value[0]), float(value[1]), float(value[2]))

network/network_world_spawn_protocol.gd.uid

@@ -0,0 +1 @@
+uid://wstcwpwk41mf

network/network_world_spawn_service.gd.uid

@@ -0,0 +1 @@
+uid://bmuhkkl2cxsck