99 lines
4.4 KiB
Text
99 lines
4.4 KiB
Text
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#---------------------------------------------------------------------------
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#
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# Title : Emesary based rt exec frame notifications
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#
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# File Type : Implementation File
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#
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# Description : Uses emesary notifications to permit nasal subsystems to be notified each frame.
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# : A frame is defined by the timer rate; which is usually the maximum rate as determined by the FPS.
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# : This is an alternative to the timer based or explicit function calling way of invoking
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# : aircraft systems.
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# : It has the advantage of using less timers and remaining modular, as each aircraft subsytem
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# : can simply register itself with the global transmitter to receive the frame notification.
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#
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# Author : Richard Harrison (richard@zaretto.com)
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#
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# Creation Date : 4 June 2018
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#
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# Version : 1.0
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#
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# Copyright (C) 2018 Richard Harrison Released under GPL V2
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#
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#---------------------------------------------------------------------------*/
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var FrameNotification =
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{
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debug: 0,
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new: func(_rate)
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{
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var new_class = emesary.Notification.new("FrameNotification", _rate);
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new_class.Rate = _rate;
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new_class.FrameRate = 60;
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new_class.FrameCount = 0;
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new_class.ElapsedSeconds = 0;
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new_class.monitored = {};
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new_class.properties = {};
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#
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# embed a recipient within this notification to allow the monitored property
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# mapping list to be modified.
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new_class.Recipient = emesary.Recipient.new("FrameNotification");
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new_class.Recipient.Receive = func(notification)
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{
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if (notification.NotificationType == "FrameNotificationAddProperty")
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{
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var root_node = props.globals;
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if (notification.root_node != nil) {
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root_node = notification.root_node;
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}
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if (new_class.properties[notification.property] != nil
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and new_class.properties[notification.property] != notification.variable)
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print("[WARNING]: (",notification.module,") FrameNotification: already have variable ",new_class.properties[notification.property]," for ",notification.variable, " referencing property ",notification.property);
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if (new_class.monitored[notification.variable] != nil
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and new_class.monitored[notification.variable].getPath() != notification.property
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and new_class.monitored[notification.variable].getPath() != "/"~notification.property)
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print("[WARNING]: (",notification.module,") FrameNotification: already have variable ",notification.variable,"=",new_class.monitored[notification.variable].getPath(), " using different property ",notification.property);
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# else if (new_class.monitored[notification.variable] == nil)
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# print("[INFO]: (",notification.module,") FrameNotification.",notification.variable, " = ",notification.property);
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new_class.monitored[notification.variable] = root_node.getNode(notification.property,1);
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new_class.properties[notification.property] = notification.variable;
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return emesary.Transmitter.ReceiptStatus_OK;
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}
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return emesary.Transmitter.ReceiptStatus_NotProcessed;
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};
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new_class.fetchvars = func() {
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foreach (var mp; keys(new_class.monitored)){
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if(new_class.monitored[mp] != nil){
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if (FrameNotification.debug > 1)
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print(" ",mp, " = ",new_class.monitored[mp].getValue());
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new_class[mp] = new_class.monitored[mp].getValue();
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}
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}
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};
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emesary.GlobalTransmitter.Register(new_class.Recipient);
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return new_class;
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},
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};
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var FrameNotificationAddProperty =
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{
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new: func(module, variable, property, root_node=nil)
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{
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var new_class = emesary.Notification.new("FrameNotificationAddProperty", variable);
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if (root_node == nil)
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root_node = props.globals;
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new_class.module = module ;
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new_class.variable = variable;
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new_class.property = property;
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new_class.root_node = root_node;
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return new_class;
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},
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};
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#
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var frameNotification = FrameNotification.new(1);
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