Initial commit

addons/walkabout/events/event.gd

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+@icon("event.svg")
+class_name WBEvent
+extends Node
+## Basic event that does nothing and emits its signals.
+
+
+## Emitted when the event starts performing.
+signal event_started()
+## Emitted when the event has finished performing.
+signal event_finished()
+
+
+## [constant true] when the event is currently active.
+## It is an error to try to perform an event that is already running.
+var running: bool = false
+
+
+## Starts the event.
+func perform() -> void:
+	if running:
+		push_error("Event may not be performed if it is already running.")
+	
+	running = true
+	event_started.emit()
+	
+	await _perform()
+	
+	running = false
+	event_finished.emit()
+
+
+func _perform() -> void:
+	pass