From 91184fd64a785a8a570145d8d4f1e373ed2f9c44 Mon Sep 17 00:00:00 2001
From: legoboyvdlp R <legoboyvdlp@gmail.com>
Date: Fri, 22 May 2020 20:58:15 +0100
Subject: [PATCH] Initial work

---
 Nasal/FMGC/mcdu-messages.nas | 134 +++++++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 Nasal/FMGC/mcdu-messages.nas

diff --git a/Nasal/FMGC/mcdu-messages.nas b/Nasal/FMGC/mcdu-messages.nas
new file mode 100644
index 00000000..e95630ce
--- /dev/null
+++ b/Nasal/FMGC/mcdu-messages.nas
@@ -0,0 +1,134 @@
+# A3XX FMGC MCDU Message Generator and Control
+# Copyright (c) 2020 Josh Davidson (Octal450) and Jonathan Redpath (legoboyvdlp)
+
+var TypeIMessage = {
+	new: func(msgText) {
+		var msg = { parents: [TypeIMessage] };
+		msg.msgText = msgText;
+		msg.colour = "w";
+		return msg;
+	},
+};
+
+var TypeIIMessage = {
+	new: func(msgText, colour, isInhibit: 0,) {
+		var msg = { parents: [TypeIIMessage] };
+		msg.msgText = msgText;
+		msg.colour = colour;
+		msg.inhibitable: isInhibit;
+		return msg;
+	},
+};
+
+var MessageQueueController = {
+	messages: std.Vector.new(), # show left to right
+	# first in first out
+	addNewMsg: func(msg) {
+		if (me.messages.size() < 5) {
+			if (!me.messages.contains(msg)) {
+				me.messages.append(x);
+			}
+		}
+	},
+	getNextMsg: func() {
+		if (me.messages.size() >= 1) {
+			me.messages.pop(0);
+		}
+	},
+	clearQueue: func() {
+		me.messages.clear();
+	},
+};
+
+var scratchpadController = {
+	scratchpad: "",
+	scratchpadSave: "",
+	scratchpadShowTypeIMsg: 0,
+	scratchpadShowTypeIIMsg: 0,
+	
+	addCharToScratchpad: func(character) {
+		if (size(me.scratchpad) >= 22) {
+			return;
+		}
+		
+		# any shown type ii is hidden
+		if (me.scratchpadShowTypeIIMsg) {
+			me.clearTypeIIMsg();
+		}
+		
+		# any shown type i is hidden
+		if (me.scratchpadShowTypeIMsg) {
+			me.clearTypeIMsg();
+		}
+		
+		me.scratchpad = me.scratchpad ~ character;
+	},
+	showTypeIMsg: func(msg) {
+		# any shown type ii is hidden
+		if (me.scratchpadShowTypeIIMsg) {
+			me.clearTypeIIMsg();
+		}
+		
+		me.scratchpadShowTypeIMsg = 1;
+		# save any data entered
+		me.scratchpadSave = me.scratchpad;
+		me.scratchpad = msg;
+	},
+	showTypeIIMsg: func(msg) {
+		# only show if scratchpad empty
+		if (me.scratchpad = "") {
+			me.scratchpadShowTypeIIMsg = 1;
+			me.scratchpad = msg;
+		}
+	},
+	clearTypeIMsg: func() {
+		me.scratchpad = me.scratchpadSave;
+		me.scratchpadSave = nil;
+		me.scratchpadShowTypeIMsg = 0;
+	},
+	clearTypeIIMsg: func() {
+		me.scratchpadShowTypeIIMsg = 0;
+		me.empty();
+	},
+	empty: func() {
+		me.scratchpad = "";
+	},
+	clear: func() {
+		if (me.showTypeIMsg) {
+			me.clearTypeIMsg();
+		} elsif (!me.showTypeIIMsg) {
+			me.scratchpad = left(me.scratchpad, size(me.scratchpad) - 1);
+		} else {
+			me.clearTypeIIMsg();
+		}
+	},
+};
+
+var MessageController = {
+	typeIMessages: std.Vector.new([
+		TypeIMessage.new("AWY/WPT MISMATCH"),TypeIMessage.new("DEST/ALTN MISMATCH"),TypeIMessage.new("DIR TO IN PROGRESS"),
+		TypeIMessage.new("ENTRY OUT OF RANGE"),TypeIMessage.new("FORMAT ERROR"),TypeIMessage.new("INSERT/ERASE TMPY FIRST"),
+		TypeIMessage.new("LIST OF 20 IN USE"),TypeIMessage.new("PILOT ELEMENT RETAINED"),TypeIMessage.new("NOT ALLOWED"),
+		TypeIMessage.new("NOT IN DATA BASE"),TypeIMessage.new("ONLY SPD ENTRY ALLOWED"),TypeIMessage.new("PLEASE WAIT"),
+		TypeIMessage.new("REVISION IN PROGRESS"),TypeIMessage.new("TMPY F-PLN EXISTS"),TypeIMessage.new("SELECT DESIRED SYSTEM"),
+		TypeIMessage.new("SELECT HDG/TRK FIRST"),TypeIMessage.new("USING COST INDEX N"),
+	]),
+	typeIIMessages: std.Vector.new([
+	
+	]),
+
+	getTypeIMsgByText: func(text) {
+		return me.getMsgByText(text, me.typeIMessages);
+	},
+	getTypeIIMsgByText: func(text) {
+		return me.getMsgByText(text, me.typeIIMessages);
+	},
+	getMsgByText: func(text, theVector) {
+		foreach (var message; theVector) {
+			if (message.msgText = text) {
+				return message;
+			}
+		}
+		return nil;
+	},
+};
\ No newline at end of file