# HG changeset patch
# User celestar
# Date 1173800800 0
# Node ID 84104c79839fb321b08be194f5b719a0cf58c765
# Parent  c1169958d5ffee0881260c3f3582aab808f62274
(svn r9141) [gamebalance] -Add: Random events that can occur monthly and affect the economy as a whole (i.e. are not local to a town or industry)

diff -r c1169958d5ff -r 84104c79839f src/date.cpp
--- a/src/date.cpp	Tue Mar 13 12:28:01 2007 +0000
+++ b/src/date.cpp	Tue Mar 13 15:46:40 2007 +0000
@@ -265,6 +265,7 @@
 			RedrawAutosave();
 		}
 
+		_eco->MonthlyLoop();
 		PlayersMonthlyLoop();
 		EnginesMonthlyLoop();
 		TownsMonthlyLoop();
diff -r c1169958d5ff -r 84104c79839f src/economy_new.h
--- a/src/economy_new.h	Tue Mar 13 12:28:01 2007 +0000
+++ b/src/economy_new.h	Tue Mar 13 15:46:40 2007 +0000
@@ -71,6 +71,28 @@
 	}
 
 	/**
+	 * Adds random events to the economic growth. This should call a random event every
+	 * 20 months. Well at least it should if RandomRange would be distributed in a
+	 * linear fashion. Note that there's one event in RandomEvents with a value of
+	 * -100 that doesn't have a positive "partner". This one simulates a big crash
+	 * or any other catastrohic event (war, disease, terrorism, whatever).
+	 * @todo Add news events for higher modifications in the economy (=> 2%)
+	 */
+	void MonthlyLoop()
+	{
+		/* Modifications of the global economic activity one-tenth of a percent */
+		static const int RandomEvents[] = {-1, 1, -2, 2, -5, 5, -10, 10, -12, 12, -15, 15, -20, 20, -25, 25, 32, -32, 50, -50, -100};
+		/* I didn't use the 19, because it hardly ever is the return of RandomRange for whatever reason */
+		if (RandomRange(20) != 18) return;
+
+		FixedT<int32, 16> mod( RandomEvents[RandomRange(lengthof(RandomEvents))], 1000);
+		mod += 1;
+
+		m_activity_level *= mod;
+		DEBUG(eco, 5, "Added a random event with a value of %f, adjusted EAL to %f", (double)mod, (double)m_activity_level);
+	}
+
+	/**
 	 * Computes the modification of economic growth by cyclic events
 	 * @return The growth modification
 	 */