--- a/src/economy.cpp	Wed Mar 21 15:12:30 2007 +0000
+++ b/src/economy.cpp	Thu Mar 22 11:11:36 2007 +0000
@@ -1806,9 +1806,16 @@
 	SlObject(&_economy, _economy_desc);
 }
 
+/** Economy variables */
+static void SaveLoad_ECO2()
+{
+	SlObject(_eco, CEconomy::eco_desc);
+}
+
 extern const ChunkHandler _economy_chunk_handlers[] = {
 	{ 'PRIC', SaveLoad_PRIC, SaveLoad_PRIC, CH_RIFF | CH_AUTO_LENGTH},
 	{ 'CAPR', SaveLoad_CAPR, SaveLoad_CAPR, CH_RIFF | CH_AUTO_LENGTH},
 	{ 'SUBS', Save_SUBS,     Load_SUBS,     CH_ARRAY},
+	{ 'ECO2', SaveLoad_ECO2, SaveLoad_ECO2, CH_RIFF},
 	{ 'ECMY', SaveLoad_ECMY, SaveLoad_ECMY, CH_RIFF | CH_LAST},
 };

--- a/src/economy_new.cpp	Wed Mar 21 15:12:30 2007 +0000
+++ b/src/economy_new.cpp	Thu Mar 22 11:11:36 2007 +0000
@@ -35,6 +35,20 @@
 }
 
 /**
+ * Descriptor for the new economy within the savegame
+ */
+/* static */
+const SaveLoad CEconomy::eco_desc[] = {
+	SLE_VAR(CEconomy, m_activity_level,   SLE_INT64),
+	SLE_VAR(CEconomy, m_basic_growth,     SLE_INT32),
+	SLE_VAR(CEconomy, m_long_term_cycle,  SLE_INT8),
+	SLE_VAR(CEconomy, m_short_term_cycle, SLE_INT8),
+	SLE_VAR(CEconomy, m_long_term_ampl,   SLE_INT32),
+	SLE_VAR(CEconomy, m_short_term_ampl,  SLE_INT32),
+	SLE_END()
+};
+
+/**
  * Starts a new economy. As there can always be only one economy in place,
  * deletes the one that is currently active
  */
@@ -44,3 +58,4 @@
 	_eco = new CEconomy;
 	assert(_eco != NULL);
 }
+

--- a/src/economy_new.h	Wed Mar 21 15:12:30 2007 +0000
+++ b/src/economy_new.h	Thu Mar 22 11:11:36 2007 +0000
@@ -13,9 +13,10 @@
 #include "date.h"           // current year / date
 #include "variables.h"      // difficulty
 #include "functions.h"      // RandomRange
+#include "saveload.h"       // Saveload stuff
 
 /**
- * A Base Class used for economic entities in the game that use an activity level
+ * A Base Class used for economic entities in the game that use an activity level.
  */
 class EconomicObject {
 protected:
@@ -125,6 +126,8 @@
 
 	void AdjustActivityByTowns();
 
+	static const SaveLoad eco_desc[];
+
 private:
 	/**
 	 * Computes the modification of economic growth by cyclic events

--- a/src/openttd.cpp	Wed Mar 21 15:12:30 2007 +0000
+++ b/src/openttd.cpp	Thu Mar 22 11:11:36 2007 +0000
@@ -1908,6 +1908,11 @@
 		}
 	}
 
+	if (CheckSavegameVersion(54)) {
+		Town *t;
+		FOR_ALL_TOWNS(t) t->SetActivity(1);
+	}
+
 	return true;
 }
 

--- a/src/saveload.cpp	Wed Mar 21 15:12:30 2007 +0000
+++ b/src/saveload.cpp	Thu Mar 22 11:11:36 2007 +0000
@@ -28,7 +28,7 @@
 #include "variables.h"
 #include <setjmp.h>
 
-extern const uint16 SAVEGAME_VERSION = 53;
+extern const uint16 SAVEGAME_VERSION = 54;
 uint16 _sl_version;       ///< the major savegame version identifier
 byte   _sl_minor_version; ///< the minor savegame version, DO NOT USE!
 

--- a/src/town.h	Wed Mar 21 15:12:30 2007 +0000
+++ b/src/town.h	Thu Mar 22 11:11:36 2007 +0000
@@ -6,6 +6,7 @@
 #include "oldpool.h"
 #include "player.h"
 #include "economy_new.h"
+#include "saveload.h"
 #include "functions.h"
 #include "helpers.hpp"
 
@@ -199,6 +200,11 @@
 	 * @return            The town to which 'group' belongs
 	 */
 	static const Town *GetRadiusGroupForTile(TileIndex tile, uint &group);
+
+	/**
+	 * Descriptor for the "town" part of the savegame
+	 */
+	static const SaveLoad town_desc[];
 };
 
 struct HouseSpec {

--- a/src/town_cmd.cpp	Wed Mar 21 15:12:30 2007 +0000
+++ b/src/town_cmd.cpp	Thu Mar 22 11:11:36 2007 +0000
@@ -1893,9 +1893,8 @@
 	GetSlopeTileh_Town,      /* get_slope_tileh_proc */
 };
 
-
-// Save and load of towns.
-static const SaveLoad _town_desc[] = {
+/* static */
+const SaveLoad Town::town_desc[] = {
 	SLE_CONDVAR(Town, xy,                    SLE_FILE_U16 | SLE_VAR_U32, 0, 5),
 	SLE_CONDVAR(Town, xy,                    SLE_UINT32,                 6, SL_MAX_VERSION),
 
@@ -1935,6 +1934,7 @@
 	SLE_CONDVAR(Town, act_mail,              SLE_UINT32,                 9, SL_MAX_VERSION),
 	SLE_CONDVAR(Town, new_act_pass,          SLE_UINT32,                 9, SL_MAX_VERSION),
 	SLE_CONDVAR(Town, new_act_mail,          SLE_UINT32,                 9, SL_MAX_VERSION),
+	SLE_CONDVAR(Town, m_activity_level,      SLE_INT64,                 54, SL_MAX_VERSION),
 
 	    SLE_VAR(Town, pct_pass_transported,  SLE_UINT8),
 	    SLE_VAR(Town, pct_mail_transported,  SLE_UINT8),
@@ -1995,7 +1995,7 @@
 
 	FOR_ALL_TOWNS(t) {
 		SlSetArrayIndex(t->index);
-		SlObject(t, _town_desc);
+		SlObject(t, Town::town_desc);
 	}
 }
 
@@ -2012,7 +2012,7 @@
 			error("Towns: failed loading savegame: too many towns");
 
 		t = GetTown(index);
-		SlObject(t, _town_desc);
+		SlObject(t, Town::town_desc);
 
 		_total_towns++;
 	}