feat: 将游戏分辨率改为1920*1080，增加下载数据按钮

scripts/autoload/DownloadManager.gd

@@ -0,0 +1,53 @@
+extends Node
+
+@onready var http_request = $HTTPRequest
+
+# 下载文件
+func download_file(url: String, filename: String):
+    # 构建保存路径
+    var save_path = "user://" + filename
+    print("开始下载: ", url)
+    print("保存到: ", save_path)
+    
+    # 发送请求
+    var error = http_request.request(url)
+    if error != OK:
+        push_error("请求发送失败: " + str(error))
+        return false
+    
+    # 连接信号（一次性）
+    if http_request.is_connected("request_completed", _on_request_completed):
+        http_request.request_completed.disconnect(_on_request_completed)
+    
+    http_request.request_completed.connect(_on_request_completed.bind(save_path), CONNECT_ONE_SHOT)
+    
+    return true
+
+# 请求完成回调
+func _on_request_completed(result, response_code, headers, body, save_path):
+    if result != HTTPRequest.RESULT_SUCCESS:
+        push_error("下载失败，错误代码: " + str(result))
+        return
+    
+    if response_code != 200:
+        push_error("HTTP错误: " + str(response_code))
+        return
+    
+    # 保存文件
+    var file = FileAccess.open(save_path, FileAccess.WRITE)
+    if file == null:
+        push_error("无法创建文件: " + save_path)
+        push_error("错误: " + str(FileAccess.get_open_error()))
+        return
+    
+    file.store_buffer(body)
+    file.close()
+    
+    print("文件保存成功: " + save_path)
+    print("文件大小: " + str(body.size()) + " 字节")
+
+func download_from_origin() -> void:
+    if GameManager.data_origin.substr(0, 4) != "http":
+        return
+    
+    

scripts/autoload/DownloadManager.gd.uid

@@ -0,0 +1 @@
+uid://ctiokhvk258u8

scripts/settings/settings.gd

@@ -14,3 +14,7 @@ func _on_save_button_pressed() -> void:
 
 func _on_cancel_button_pressed() -> void:
 	SceneManager.goto_scene("main_menu")
+
+
+func _on_download_button_pressed() -> void:
+	pass # Replace with function body.