extract editor state vars in cScenario to a new struct

src/fileio/fileio_scen.cpp

@@ -944,9 +944,9 @@ void readScenarioFromXml(ticpp::Document&& data, cScenario& scenario) {
 				}
 				// Old scenario files may have last-out-section and last-town in scenario.xml
 				else if(type == "last-out-section") {
-					scenario.last_out_edited = readLocFromXml(*edit);
+					scenario.editor_state.last_out_edited = readLocFromXml(*edit);
 				} else if(type == "last-town") {
-					edit->GetText(&scenario.last_town_edited);
+					edit->GetText(&scenario.editor_state.last_town_edited);
 				}
 				else if(type == "sound") {
 					int sndnum = 0;
@@ -1080,9 +1080,9 @@ void readEditorStateFromXml(ticpp::Document&& data, cScenario& scenario) {
 	for(elem = elem.begin(data.FirstChildElement()); elem != elem.end(); elem++) {
 		elem->GetValue(&type);
 		if(type == "last-out-section") {
-			scenario.last_out_edited = readLocFromXml(*elem);
+			scenario.editor_state.last_out_edited = readLocFromXml(*elem);
 		} else if(type == "last-town") {
-			elem->GetText(&scenario.last_town_edited);
+			elem->GetText(&scenario.editor_state.last_town_edited);
 		}
 	}
 }

src/scenario/scenario.cpp

@@ -110,8 +110,7 @@ cScenario::cScenario(const cScenario& other)
 	, scenario_timers(other.scenario_timers)
 	, scen_specials(other.scen_specials)
 	, storage_shortcuts(other.storage_shortcuts)
-	, last_out_edited(other.last_out_edited)
-	, last_town_edited(other.last_town_edited)
+	, editor_state(other.editor_state)
 	, format(other.format)
 	, campaign_id(other.campaign_id)
 	, scen_items(other.scen_items)
@@ -178,8 +177,7 @@ void swap(cScenario& lhs, cScenario& rhs) {
 	swap(lhs.scenario_timers, rhs.scenario_timers);
 	swap(lhs.scen_specials, rhs.scen_specials);
 	swap(lhs.storage_shortcuts, rhs.storage_shortcuts);
-	swap(lhs.last_out_edited, rhs.last_out_edited);
-	swap(lhs.last_town_edited, rhs.last_town_edited);
+	swap(lhs.editor_state, rhs.editor_state);
 	swap(lhs.format, rhs.format);
 	swap(lhs.campaign_id, rhs.campaign_id);
 	swap(lhs.scen_items, rhs.scen_items);
@@ -263,9 +261,9 @@ void cScenario::import_legacy(legacy::scenario_data_type& old){
 		scenario_timers[i].time = old.scenario_timer_times[i];
 		scenario_timers[i].node = old.scenario_timer_specs[i];
 	}
-	last_out_edited.x = old.last_out_edited.x;
-	last_out_edited.y = old.last_out_edited.y;
-	last_town_edited = old.last_town_edited;
+	editor_state.last_out_edited.x = old.last_out_edited.x;
+	editor_state.last_out_edited.y = old.last_out_edited.y;
+	editor_state.last_town_edited = old.last_town_edited;
 	adjust_diff = true;
 }
 

src/scenario/scenario.hpp

@@ -46,6 +46,15 @@ struct town_entrance_t {
 	int town;
 };
 
+// This is completely unnecessary outside of the scenario editor, but harmless to load anyway,
+// and much easier to store in cScenario so readScenarioFromXML() doesn't need conditionally compiled
+// access to scenedit-specific global variables (which won't work unless we want to compile the common
+// sources 3 times), or globals redeclared for no reason in boe.main.cpp and pc.main.cpp
+struct editor_state_t {
+	short last_town_edited;
+	location last_out_edited;
+};
+
 class cScenario {
 public:
 	class cItemStorage {
@@ -84,9 +93,7 @@ public:
 	std::array<cTimer,20> scenario_timers;
 	std::vector<cSpecial> scen_specials;
 	std::array<cItemStorage,10> storage_shortcuts;
-	// These two \/ are populated at load time and then never used again
-	location last_out_edited;
-	short last_town_edited;
+	editor_state_t editor_state;
 	scenario_header_flags format;
 	std::string campaign_id; // A hopefully unique identifier to specify the campaign this scenario is a part of.
 	std::vector<cItem> scen_items;

src/scenedit/scen.actions.cpp

@@ -2882,6 +2882,6 @@ bool monst_on_space(location loc,short m_num) {
 }
 
 void restore_editor_state() {
-	set_current_town(scenario.last_town_edited);
-	set_current_out(scenario.last_out_edited);
+	set_current_town(scenario.editor_state.last_town_edited);
+	set_current_out(scenario.editor_state.last_out_edited);
 }

src/scenedit/scen.main.cpp

@@ -448,10 +448,8 @@ void handle_menu_choice(eMenu item_hit) {
 				break;
 			file_to_load = item_hit == eMenu::FILE_OPEN ? nav_get_scenario() : scenario.scen_file;
 			if(!file_to_load.empty() && load_scenario(file_to_load, scenario)) {
-				cur_town = scenario.last_town_edited;
-				town = scenario.towns[cur_town];
+				restore_editor_state();
 				change_made = false;
-				set_current_out(scenario.last_out_edited);
 			} else if(!file_to_load.empty())
 				set_up_start_screen(); // Failed to load file, dump to start
 			undo_list.clear();

src/scenedit/scen.townout.cpp

@@ -1529,12 +1529,12 @@ void set_current_town(int to) {
 	if(to < 0 || to >= scenario.towns.size()) return;
 	cur_town = to;
 	town = scenario.towns[cur_town];
-	scenario.last_town_edited = cur_town;
+	scenario.editor_state.last_town_edited = cur_town;
 }
 
 void set_current_out(location out_sec) {
 	cur_out = out_sec;
-	scenario.last_out_edited = cur_out;
+	scenario.editor_state.last_out_edited = cur_out;
 	current_terrain = scenario.outdoors[cur_out.x][cur_out.y];
 	set_up_main_screen();
 }

test/scen_legacy.cpp

@@ -72,8 +72,8 @@ TEST_CASE("Converting legacy scenario data") {
 		CHECK(scen.intro_pic == 27);
 		CHECK(scen.is_legacy);
 		CHECK(scen.journal_strs.empty());
-		CHECK(scen.last_out_edited == loc(1,1));
-		CHECK(scen.last_town_edited == 2);
+		CHECK(scen.editor_state.last_out_edited == loc(1,1));
+		CHECK(scen.editor_state.last_town_edited == 2);
 		CHECK(scen.out_sec_start == loc(4,4));
 		CHECK(scen.out_start == loc(1,1));
 		CHECK(scen.rating == eContentRating::R);