Began bringing the client into line with the server's changes

Several parts of the client already built correctly.

Updated LobbyMenu, it not builds.

common/map/region_pager.cpp

@@ -64,6 +64,11 @@ Region* RegionPager::FindRegion(int x, int y) {
 }
 
 Region* RegionPager::LoadRegion(int x, int y) {
+	//only work if using lua
+	if (!luaState) {
+		throw(std::runtime_error("RegionPager::luaState is null"));
+	}
+
 	//load the region if possible
 
 	//snap the coords
@@ -97,6 +102,11 @@ Region* RegionPager::LoadRegion(int x, int y) {
 }
 
 Region* RegionPager::SaveRegion(int x, int y) {
+	//only work if using lua
+	if (!luaState) {
+		throw(std::runtime_error("RegionPager::luaState is null"));
+	}
+
 	//snap the coords
 	x = snapToBase(REGION_WIDTH, x);
 	y = snapToBase(REGION_HEIGHT, y);
@@ -118,6 +128,11 @@ Region* RegionPager::SaveRegion(int x, int y) {
 }
 
 Region* RegionPager::CreateRegion(int x, int y) {
+	//only work if using lua
+	if (!luaState) {
+		throw(std::runtime_error("RegionPager::luaState is null"));
+	}
+
 	//snap the coords
 	x = snapToBase(REGION_WIDTH, x);
 	y = snapToBase(REGION_HEIGHT, y);
@@ -143,6 +158,11 @@ Region* RegionPager::CreateRegion(int x, int y) {
 }
 
 void RegionPager::UnloadRegion(int x, int y) {
+	//only work if using lua
+	if (!luaState) {
+		throw(std::runtime_error("RegionPager::luaState is null"));
+	}
+
 	//snap the coords
 	x = snapToBase(REGION_WIDTH, x);
 	y = snapToBase(REGION_HEIGHT, y);

common/map/region_pager.hpp

@@ -29,6 +29,7 @@
 #include <list>
 #include <string>
 
+//TODO: split this into two: "RegionPagerBase" and "RegionPagerLua"
 class RegionPager {
 public:
 	RegionPager() = default;