2023-03-09 20:26:57 +00:00
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class_name FileWatcher
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signal file_changed
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var file_name: String setget set_file_name
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var scan_delay_s: float = 1.0 setget set_scan_delay_s
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var _file := File.new()
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var _last_modified: int = 0
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var _timer := Timer.new()
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func _init() -> void:
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# warning-ignore:return_value_discarded
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_timer.connect("timeout", self, "check")
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_timer.wait_time = scan_delay_s
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func set_file_name(new_file_name: String) -> void:
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if file_name == new_file_name:
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return
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file_name = new_file_name
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if file_name.begins_with("res://") or file_name.begins_with("user://"):
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file_name = ProjectSettings.globalize_path(file_name)
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_last_modified = _file.get_modified_time(file_name)
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_timer.name = "__file_watcher_%s"%[file_name]
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func set_scan_delay_s(new_scan_delay_s: float) -> void:
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scan_delay_s = new_scan_delay_s
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_timer.wait_time = scan_delay_s
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func check() -> void:
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if file_name == "":
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return
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var new_modified := _file.get_modified_time(file_name)
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if new_modified != _last_modified:
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_last_modified = new_modified
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2023-04-22 01:08:05 +00:00
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emit_signal("file_changed")
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2023-03-09 20:26:57 +00:00
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func start() -> void:
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if not _timer.is_inside_tree():
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var main_loop: SceneTree = Engine.get_main_loop()
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var root := main_loop.root
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if root == null:
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printerr("Called start before any scene is loaded")
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return
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if not root.is_inside_tree():
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yield(root, "ready")
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root.call_deferred("add_child", _timer, true)
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yield(_timer, "ready")
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_timer.start()
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func stop() -> void:
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_timer.stop()
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