One-shot timer.
A one-shot timer managed by the scene tree, which emits [signal timeout] on completion. See also [method SceneTree.create_timer].
As opposed to [Timer], it does not require the instantiation of a node. Commonly used to create a one-shot delay timer as in the following example:
[codeblock]
func some_function():
print("Timer started.")
yield(get_tree().create_timer(1.0), "timeout")
print("Timer ended.")
[/codeblock]
The timer will be dereferenced after its time elapses. To preserve the timer, you can keep a reference to it. See [Reference].
The time remaining (in seconds).
Emitted when the timer reaches 0.