Add cmresettowngrowth command to reset growth rate of all towns to normal

src/citymania/cm_console_cmds.cpp

@@ -10,6 +10,7 @@
 #include "../fileio_type.h"
 #include "../map_type.h"
 #include "../map_func.h"
+#include "../town.h"
 #include "../tree_map.h"
 
 #include "../safeguards.h"
@@ -108,4 +109,23 @@ bool ConTreeMap(byte argc, char *argv[]) {
     return true;
 }
 
+extern void (*UpdateTownGrowthRate)(Town *t);
+
+bool ConResetTownGrowth(byte argc, char *argv[]) {
+    if (argc == 0) {
+        IConsoleHelp("Loads heighmap-like file and plants trees according to it, values 0-256 ore scaled to 0-4 trees.");
+        IConsoleHelp("Usage: 'cmtreemap <file>'");
+        IConsoleHelp("Default lookup path is in scenario/heightmap in your openttd directory");
+        return true;
+    }
+
+    if (argc > 1) return false;
+
+    for (Town *town : Town::Iterate()) {
+        ClrBit(town->flags, TOWN_CUSTOM_GROWTH);
+        UpdateTownGrowthRate(town);
+    }
+    return true;
+}
+
 } // namespace citymania

src/citymania/cm_console_cmds.hpp

@@ -6,6 +6,7 @@ namespace citymania {
 bool ConStep(byte argc, char *argv[]);
 bool ConExport(byte argc, char *argv[]);
 bool ConTreeMap(byte argc, char *argv[]);
+bool ConResetTownGrowth(byte argc, char *argv[]);
 
 } // namespace citymania
 

src/console_cmds.cpp

@@ -2214,4 +2214,5 @@ void IConsoleStdLibRegister()
 	IConsoleCmdRegister("cmstep", citymania::ConStep, ConHookNoNetwork);
 	IConsoleCmdRegister("cmexport", citymania::ConExport);
 	IConsoleCmdRegister("cmtreemap", citymania::ConTreeMap, ConHookNoNetwork);
+	IConsoleCmdRegister("cmresettowngrowth", citymania::ConResetTownGrowth, ConHookNoNetwork);
 }

src/town_cmd.cpp

@@ -4006,3 +4006,7 @@ void ResetHouses()
 	/* Reset any overrides that have been set. */
 	_house_mngr.ResetOverride();
 }
+
+namespace citymania {
+	auto UpdateTownGrowthRate = &::UpdateTownGrowthRate;
+}