Save unlocked doors. (Fix #207)

src/game/boe.party.cpp

@@ -1368,6 +1368,7 @@ void cast_town_spell(location where) {
 					add_string_to_buf("  Door unlocked.");
 					play_sound(9);
 					univ.town->terrain(where.x,where.y) = univ.scenario.ter_types[ter].flag1;
+					univ.town->door_unlocked.push_back(where);
 				}
 				else {
 					play_sound(41);

src/game/boe.town.cpp

@@ -123,6 +123,13 @@ void start_town_mode(short which_town, short entry_dir, bool debug_enter) {
 	// TODO: This means cleared webs reappear, for example. Is that right?
 	univ.town.place_preset_fields();
 
+	for(location unlocked : univ.town->door_unlocked){
+		if(is_unlockable(unlocked)){
+			ter_num_t terrain = univ.town->terrain(unlocked.x,unlocked.y);
+			univ.town->terrain(unlocked.x,unlocked.y) = univ.scenario.ter_types[terrain].flag1;
+		}
+	}
+
 	univ.town.belt_present = false;
 	// Set up map, using stored map
 	for(short i = 0; i < univ.town->max_dim; i++)
@@ -1181,6 +1188,7 @@ void pick_lock(location where,short pc_num) {
 		add_string_to_buf("  Door unlocked.");
 		play_sound(9);
 		univ.town->terrain(where.x,where.y) = univ.scenario.ter_types[terrain].flag1;
+		univ.town->door_unlocked.push_back(where);
 	}
 }
 
@@ -1205,6 +1213,7 @@ void bash_door(location where,short pc_num) {
 		add_string_to_buf("  Lock breaks.");
 		play_sound(9);
 		univ.town->terrain(where.x,where.y) = univ.scenario.ter_types[terrain].flag1;
+		univ.town->door_unlocked.push_back(where);
 	}
 }
 

src/scenario/scenario.cpp

@@ -544,6 +544,8 @@ void cScenario::writeTo(cTagFile& file) const {
 	for(int i = 0; i < towns.size(); i++) {
 		if(towns[i]->item_taken.any())
 			page["ITEMTAKEN"] << i << towns[i]->item_taken;
+		if(!towns[i]->door_unlocked.empty())
+			page["DOORUNLOCKED"] << i << towns[i]->door_unlocked;
 		if(towns[i]->can_find)
 			page["TOWNVISIBLE"] << i;
 		else page["TOWNHIDDEN"] << i;
@@ -554,9 +556,12 @@ void cScenario::writeTo(cTagFile& file) const {
 
 void cScenario::readFrom(const cTagFile& file){
 	std::map<int, boost::dynamic_bitset<>> taken;
+	std::map<int, std::vector<location>> unlocked;
 	std::vector<size_t> visible, hidden, slaughter;
 	auto& page = file[0];
 	page["ITEMTAKEN"].extractSparse(taken);
+	if(page.contains("DOORUNLOCKED"))
+		page["DOORUNLOCKED"].extractSparse(unlocked);
 	page["TOWNVISIBLE"].extract(visible);
 	page["TOWNHIDDEN"].extract(hidden);
 	page["TOWNSLAUGHTER"].extractSparse(slaughter);
@@ -565,6 +570,8 @@ void cScenario::readFrom(const cTagFile& file){
 	for(size_t i = 0; i < towns.size(); i++) {
 		if(taken.find(i) != taken.end()) towns[i]->item_taken = taken[i];
 		else towns[i]->item_taken.clear();
+		if(unlocked.find(i) != unlocked.end()) towns[i]->door_unlocked = unlocked[i];
+		else towns[i]->door_unlocked.clear();
 		if(i < slaughter.size()) towns[i]->m_killed = slaughter[i];
 		else towns[i]->m_killed = 0;
 		if(std::binary_search(visible.begin(), visible.end(), i)) {

src/scenario/town.hpp

@@ -101,6 +101,7 @@ private:
 	// Persistent data for saved games
 	boost::dynamic_bitset<> item_taken;
 public:
+	std::vector<location> door_unlocked;
 	bool can_find;
 	long m_killed = 0;