added firebase and rudimentary leaderboard support

addons/godot-firebase/queues/queueable_http_request.gd

@@ -0,0 +1,30 @@
+class_name QueueableHTTPRequest
+extends HTTPRequest
+
+signal queue_request_completed(result : int, response_code : int, headers : PackedStringArray, body : PackedByteArray)
+
+var _queue := []
+
+# Determine if we need to set Use Threads to true; it can cause collisions with get_http_client_status() due to a thread returning the data _after_ having checked the connection status and result in double-requests.
+
+func _ready() -> void:
+	request_completed.connect(
+		func(result : int, response_code : int, headers : PackedStringArray, body : PackedByteArray):
+			queue_request_completed.emit(result, response_code, headers, body)
+			
+			if not _queue.is_empty():
+				var req = _queue.pop_front()
+				self.request(req.url, req.headers, req.method, req.data)
+	)
+	
+func request(url : String, headers : PackedStringArray = PackedStringArray(), method := HTTPClient.METHOD_GET, data : String = "") -> Error:
+	var status = get_http_client_status()
+	var result = OK
+	
+	if status != HTTPClient.STATUS_DISCONNECTED:
+		_queue.push_back({url=url, headers=headers, method=method, data=data})
+		return result
+
+	result = super.request(url, headers, method, data)
+	
+	return result

addons/godot-firebase/queues/queueable_http_request.gd.uid

@@ -0,0 +1 @@
+uid://37mycjbymm3y

addons/godot-firebase/queues/queueable_http_request.tscn

@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=3 uid="uid://ctb4l7plg8kqg"]
+
+[ext_resource type="Script" path="res://addons/godot-firebase/queues/queueable_http_request.gd" id="1_2rucc"]
+
+[node name="QueueableHTTPRequest" type="HTTPRequest"]
+script = ExtResource("1_2rucc")