feat(code): Permanent changes to the player's ship via conversation actions.

source/GameAction.cpp

@@ -226,6 +226,24 @@
 		fail.insert(child.Token(1));
 	else if(key == "fail")
 		failCaller = true;
+	else if(key == "attributes")
+	{
+		// Current expected format is attributes add/set <attribute name> <value>
+		if(child.Size() == 4)
+		{
+			if(child.Token(1) == "add")
+			{
+				double valueChange = static_cast<double>(child.Value(3));
+				modifyAttributes[Get(child.Token(2))] = valueChange;
+			}
+		}
+		else if(child.Size() > 4)
+			child.PrintTrace("Error: Skipping \"attributes\" as >4 values is not yet supported:");
+		else
+			child.PrintTrace("Error: Skipping invalid values for \"attributes\":");
+		/*else if(child.Token(1) == "set")*/
+		/* < code to put the attributes into the set map, to be done after the add is working > ;*/
+	}
 	else
 		conditions.Add(child);
 }
@@ -377,9 +395,17 @@
 
 
 
+const map<std::string, double> &GameAction::ModifyAttributes() const noexcept
+{
+	return modifyAttributes;
+}
+
+
+
 // Perform the specified tasks.
 void GameAction::Do(PlayerInfo &player, UI *ui, const Mission *caller) const
 {
+	// Log entries
 	if(!logText.empty())
 		player.AddLogEntry(logText);
 	for(auto &&it : specialLogText)
@@ -396,15 +422,19 @@
 
 	// If multiple outfits, ships are being transferred, first remove the ships,
 	// then the outfits, before adding any new ones.
+	// Removing ships.
 	for(auto &&it : giftShips)
 		if(!it.Giving())
 			it.Do(player);
+	// Take outfits.
 	for(auto &&it : giftOutfits)
 		if(it.second < 0)
 			DoGift(player, it.first, it.second, ui);
+	// Give outfits.
 	for(auto &&it : giftOutfits)
 		if(it.second > 0)
 			DoGift(player, it.first, it.second, ui);
+	// Give ships.
 	for(auto &&it : giftShips)
 		if(it.Giving())
 			it.Do(player);
@@ -425,14 +455,17 @@
 		// then this action won't offer, so MissionAction payment behavior
 		// is unchanged.
 	}
+	// giving the player a fine.
 	if(fine)
 		player.Accounts().AddFine(fine);
 	for(const auto &debtEntry : debt)
 		player.Accounts().AddDebt(debtEntry.amount, debtEntry.interest, debtEntry.term);
 
+	// Trigger events.
 	for(const auto &it : events)
 		player.AddEvent(*it.first, player.GetDate() + it.second.first);
 
+	// Mark and unmark systems.
 	for(const System *system : mark)
 		caller->Mark(system);
 	for(const System *system : unmark)

source/GameAction.h

@@ -67,6 +67,9 @@ class GameAction {
 	const std::map<const Outfit *, int> &Outfits() const noexcept;
 	const std::vector<ShipManager> &Ships() const noexcept;
 
+	// references the map of attributes to be changed.
+	const std::map<std::string, double> &ModifyAttributes() const noexcept;
+
 	// Perform this action.
 	void Do(PlayerInfo &player, UI *ui, const Mission *caller) const;
 
@@ -94,6 +97,7 @@ class GameAction {
 	std::map<const GameEvent *, std::pair<int, int>> events;
 	std::vector<ShipManager> giftShips;
 	std::map<const Outfit *, int> giftOutfits;
+	std::map<std::string, double> modifyAttributes;
 
 	int64_t payment = 0;
 	int64_t paymentMultiplier = 0;