Fixed date and time consistency across Campaigns and Missions

This fixes campaign mission generation mostly, but a full playthrough
will be needed. Missions now serialize and accept stardate setting a
bit better. Thanks to this, date is propagated over multiplayer, too.

This seems to break points system?

Code-wise, this does not workaround the problems from before namely
over-reliance on side-effects. Stardate class is at least one small
step into good direction. Now, it'd be nice to attach clocks to
simulation and campaign and whatever else that needs them.

1 files changed, 43 insertions, 0 deletions

diff --git a/StarsEx/Stardate.h b/StarsEx/Stardate.h
new file mode 100644
index 0000000..cc696c8
--- /dev/null
+++ b/StarsEx/Stardate.h
@@ -0,0 +1,43 @@
+/*  Starshatter: The Open Source Project
+    Copyright (c) 2021-2024, Starshatter: The Open Source Project Contributors
+    Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
+    Copyright (c) 1997-2006, Destroyer Studios LLC.
+*/
+
+#pragma once
+
+#include <Text.h>
+
+
+namespace starshatter
+{
+namespace engine
+{
+
+
+struct Stardate
+{
+	long double value = {};
+
+	Stardate();
+	Stardate(long double value_);
+
+	operator long double() const;
+
+	Text Format(bool short_format=false) const;
+};
+
+
+Stardate CurrentTime();
+Stardate OperationTime();
+Stardate MissionTime();
+
+long double Epoch();
+long double OperationStart();
+long double MissionStart();
+void SetOperationStart(long double value={}, bool relative=false);
+void SetMissionStart(long double value={}, bool relative=false);
+
+
+}  // namespace engine
+}  // namespace starshatter