gd: added input addon

addons/guide/triggers/guide_trigger_down.gd

@@ -0,0 +1,20 @@
+## Fires, when the input exceeds the actuation threshold. This is
+## the default trigger when no trigger is specified.
+@tool
+class_name GUIDETriggerDown
+extends GUIDETrigger
+
+func _update_state(input:Vector3, delta:float, value_type:GUIDEAction.GUIDEActionValueType) -> GUIDETriggerState:
+	# if the input is actuated, then the trigger is triggered.
+	if _is_actuated(input, value_type):
+		return GUIDETriggerState.TRIGGERED
+	# otherwise, the trigger is not triggered.
+	return GUIDETriggerState.NONE
+
+
+func _editor_name() -> String:
+	return "Down"
+
+func _editor_description() -> String:
+	return "Fires, when the input exceeds the actuation threshold. This is\n" +\
+			"the default trigger when no trigger is specified."