Feature: Infinite money mode (#11902)

src/command.cpp

@@ -161,21 +161,6 @@ bool IsCommandAllowedWhilePaused(Commands cmd)
 	return _game_mode == GM_EDITOR || command_type_lookup[_command_proc_table[cmd].type] <= _settings_game.construction.command_pause_level;
 }
 
-/*!
- * This functions returns the money which can be used to execute a command.
- * This is either the money of the current company or INT64_MAX if there
- * is no such a company "at the moment" like the server itself.
- *
- * @return The available money of a company or INT64_MAX
- */
-Money GetAvailableMoneyForCommand()
-{
-	CompanyID company = _current_company;
-	if (!Company::IsValidID(company)) return INT64_MAX;
-	return Company::Get(company)->money;
-}
-
-
 /**
  * Prepare for calling a command proc.
  * @param top_level Top level of command execution, i.e. command from a command.

src/command_func.h

@@ -42,7 +42,6 @@ void NetworkSendCommand(Commands cmd, StringID err_message, CommandCallback *cal
 bool IsValidCommand(Commands cmd);
 CommandFlags GetCommandFlags(Commands cmd);
 const char *GetCommandName(Commands cmd);
-Money GetAvailableMoneyForCommand();
 bool IsCommandAllowedWhilePaused(Commands cmd);
 
 template <Commands Tcmd>

src/company_cmd.cpp

@@ -193,20 +193,48 @@ void InvalidateCompanyWindows(const Company *company)
 	SetWindowDirty(WC_FINANCES, cid);
 }
 
+/**
+ * Get the amount of money that a company has available, or INT64_MAX
+ * if there is no such valid company.
+ *
+ * @param company Company to check
+ * @return The available money of the company or INT64_MAX
+ */
+Money GetAvailableMoney(CompanyID company)
+{
+	if (_settings_game.difficulty.infinite_money) return INT64_MAX;
+	if (!Company::IsValidID(company)) return INT64_MAX;
+	return Company::Get(company)->money;
+}
+
+/**
+ * This functions returns the money which can be used to execute a command.
+ * This is either the money of the current company, or INT64_MAX if infinite money
+ * is enabled or there is no such a company "at the moment" like the server itself.
+ *
+ * @return The available money of the current company or INT64_MAX
+ */
+Money GetAvailableMoneyForCommand()
+{
+	return GetAvailableMoney(_current_company);
+}
+
 /**
  * Verify whether the company can pay the bill.
  * @param[in,out] cost Money to pay, is changed to an error if the company does not have enough money.
- * @return Function returns \c true if the company has enough money, else it returns \c false.
+ * @return Function returns \c true if the company has enough money or infinite money is enabled,
+ * else it returns \c false.
  */
 bool CheckCompanyHasMoney(CommandCost &cost)
 {
-	if (cost.GetCost() > 0) {
-		const Company *c = Company::GetIfValid(_current_company);
-		if (c != nullptr && cost.GetCost() > c->money) {
-			SetDParam(0, cost.GetCost());
-			cost.MakeError(STR_ERROR_NOT_ENOUGH_CASH_REQUIRES_CURRENCY);
-			return false;
-		}
+	if (cost.GetCost() <= 0) return true;
+	if (_settings_game.difficulty.infinite_money) return true;
+
+	const Company *c = Company::GetIfValid(_current_company);
+	if (c != nullptr && cost.GetCost() > c->money) {
+		SetDParam(0, cost.GetCost());
+		cost.MakeError(STR_ERROR_NOT_ENOUGH_CASH_REQUIRES_CURRENCY);
+		return false;
 	}
 	return true;
 }

src/company_func.h

@@ -26,6 +26,8 @@ void CompanyAdminBankrupt(CompanyID company_id);
 void UpdateLandscapingLimits();
 void UpdateCompanyLiveries(Company *c);
 
+Money GetAvailableMoney(CompanyID company);
+Money GetAvailableMoneyForCommand();
 bool CheckCompanyHasMoney(CommandCost &cost);
 void SubtractMoneyFromCompany(const CommandCost &cost);
 void SubtractMoneyFromCompanyFract(CompanyID company, const CommandCost &cost);

src/economy.cpp

@@ -568,6 +568,9 @@ void ChangeOwnershipOfCompanyItems(Owner old_owner, Owner new_owner)
  */
 static void CompanyCheckBankrupt(Company *c)
 {
+	/* If "Infinite money" setting is on, companies should not go bankrupt. */
+	if (_settings_game.difficulty.infinite_money) return;
+
 	/*  If the company has money again, it does not go bankrupt */
 	if (c->money - c->current_loan >= -_economy.max_loan) {
 		int previous_months_of_bankruptcy = CeilDiv(c->months_of_bankruptcy, 3);

src/lang/english.txt

@@ -835,6 +835,7 @@ STR_STATUSBAR_AUTOSAVE                                          :{RED}AUTOSAVE
 STR_STATUSBAR_SAVING_GAME                                       :{RED}*  *  SAVING GAME  *  *
 
 STR_STATUSBAR_SPECTATOR                                         :{WHITE}(spectator)
+STR_STATUSBAR_INFINITE_MONEY                                    :{WHITE}(infinite money)
 
 # News message history
 STR_MESSAGE_HISTORY                                             :{WHITE}Message History
@@ -1287,6 +1288,9 @@ STR_CONFIG_SETTING_HORIZONTAL_POS_RIGHT                         :Right
 
 STR_CONFIG_SETTING_SECONDS_VALUE                                :{COMMA}{NBSP}second{P 0 "" s}
 
+STR_CONFIG_SETTING_INFINITE_MONEY                               :Infinite money: {STRING2}
+STR_CONFIG_SETTING_INFINITE_MONEY_HELPTEXT                      :Allow unlimited spending and disable bankruptcy of companies
+
 STR_CONFIG_SETTING_MAXIMUM_INITIAL_LOAN                         :Maximum initial loan: {STRING2}
 STR_CONFIG_SETTING_MAXIMUM_INITIAL_LOAN_HELPTEXT                :Maximum amount a company can loan (without taking inflation into account)
 STR_CONFIG_SETTING_MAXIMUM_INITIAL_LOAN_VALUE                   :{CURRENCY_LONG}

src/object_cmd.cpp

@@ -10,6 +10,7 @@
 #include "stdafx.h"
 #include "landscape.h"
 #include "command_func.h"
+#include "company_func.h"
 #include "viewport_func.h"
 #include "company_base.h"
 #include "town.h"

src/road_cmd.cpp

@@ -12,6 +12,7 @@
 #include "road_internal.h"
 #include "viewport_func.h"
 #include "command_func.h"
+#include "company_func.h"
 #include "pathfinder/yapf/yapf_cache.h"
 #include "depot_base.h"
 #include "newgrf.h"

src/script/api/script_company.cpp

@@ -179,7 +179,7 @@
 	company = ResolveCompanyID(company);
 	if (company == COMPANY_INVALID) return -1;
 
-	return ::Company::Get(company)->money;
+	return GetAvailableMoney((::CompanyID)company);
 }
 
 /* static */ Money ScriptCompany::GetLoanAmount()

src/settings_gui.cpp

@@ -2084,6 +2084,7 @@ static SettingsContainer &GetSettingsTree()
 
 		SettingsPage *accounting = main->Add(new SettingsPage(STR_CONFIG_SETTING_ACCOUNTING));
 		{
+			accounting->Add(new SettingEntry("difficulty.infinite_money"));
 			accounting->Add(new SettingEntry("economy.inflation"));
 			accounting->Add(new SettingEntry("difficulty.initial_interest"));
 			accounting->Add(new SettingEntry("difficulty.max_loan"));

src/settings_type.h

@@ -114,6 +114,7 @@ struct DifficultySettings {
 	bool   line_reverse_mode;                ///< reversing at stations or not
 	bool   disasters;                        ///< are disasters enabled
 	byte   town_council_tolerance;           ///< minimum required town ratings to be allowed to demolish stuff
+	bool   infinite_money;                   ///< whether spending money despite negative balance is allowed
 };
 
 /** Settings relating to viewport/smallmap scrolling. */

src/statusbar_gui.cpp

@@ -123,6 +123,8 @@ struct StatusBarWindow : Window {
 			case WID_S_RIGHT: {
 				if (_local_company == COMPANY_SPECTATOR) {
 					DrawString(tr, STR_STATUSBAR_SPECTATOR, TC_FROMSTRING, SA_HOR_CENTER);
+				} else if (_settings_game.difficulty.infinite_money) {
+					DrawString(tr, STR_STATUSBAR_INFINITE_MONEY, TC_FROMSTRING, SA_HOR_CENTER);
 				} else {
 					/* Draw company money, if any */
 					const Company *c = Company::GetIfValid(_local_company);

src/table/settings/difficulty_settings.ini

@@ -298,3 +298,11 @@ min      = 0
 max      = 3
 cat      = SC_BASIC
 
+[SDT_BOOL]
+var      = difficulty.infinite_money
+def      = false
+str      = STR_CONFIG_SETTING_INFINITE_MONEY
+strhelp  = STR_CONFIG_SETTING_INFINITE_MONEY_HELPTEXT
+cat      = SC_BASIC
+post_cb  = [](auto) { SetWindowDirty(WC_STATUS_BAR, 0); }
+

src/town_cmd.cpp

@@ -15,6 +15,7 @@
 #include "viewport_func.h"
 #include "viewport_kdtree.h"
 #include "command_func.h"
+#include "company_func.h"
 #include "industry.h"
 #include "station_base.h"
 #include "waypoint_base.h"

src/vehicle.cpp

@@ -220,7 +220,7 @@ bool Vehicle::NeedsServicing() const
 	 * There are a lot more reasons for autoreplace to fail than we can test here reasonably. */
 	bool pending_replace = false;
 	Money needed_money = c->settings.engine_renew_money;
-	if (needed_money > c->money) return false;
+	if (needed_money > GetAvailableMoney(c->index)) return false;
 
 	for (const Vehicle *v = this; v != nullptr; v = (v->type == VEH_TRAIN) ? Train::From(v)->GetNextUnit() : nullptr) {
 		bool replace_when_old = false;
@@ -258,7 +258,7 @@ bool Vehicle::NeedsServicing() const
 		 * We want 2*(the price of the new vehicle) without looking at the value of the vehicle we are going to sell. */
 		pending_replace = true;
 		needed_money += 2 * Engine::Get(new_engine)->GetCost();
-		if (needed_money > c->money) return false;
+		if (needed_money > GetAvailableMoney(c->index)) return false;
 	}
 
 	return pending_replace;