Merge bea6f90a7d into 9ce2aca949

The mask was treated as a single RoadStopDrawMode instead of a RoadStopDrawModes bitset.

src/fontcache/spritefontcache.cpp

@@ -103,14 +103,14 @@ void SpriteFontCache::ClearFontCache()
 
 const Sprite *SpriteFontCache::GetGlyph(GlyphID key)
 {
-	SpriteID sprite = this->GetUnicodeGlyph(static_cast<char32_t>(key & ~SPRITE_GLYPH));
+	SpriteID sprite = static_cast<SpriteID>(key & ~SPRITE_GLYPH);
 	if (sprite == 0) sprite = this->GetUnicodeGlyph('?');
 	return GetSprite(sprite, SpriteType::Font);
 }
 
 uint SpriteFontCache::GetGlyphWidth(GlyphID key)
 {
-	SpriteID sprite = this->GetUnicodeGlyph(static_cast<char32_t>(key & ~SPRITE_GLYPH));
+	SpriteID sprite = static_cast<SpriteID>(key & ~SPRITE_GLYPH);
 	if (sprite == 0) sprite = this->GetUnicodeGlyph('?');
 	return SpriteExists(sprite) ? GetSprite(sprite, SpriteType::Font)->width + ScaleFontTrad(this->fs != FS_NORMAL ? 1 : 0) : 0;
 }
@@ -120,7 +120,7 @@ GlyphID SpriteFontCache::MapCharToGlyph(char32_t key, [[maybe_unused]] bool allo
 	assert(IsPrintable(key));
 	SpriteID sprite = this->GetUnicodeGlyph(key);
 	if (sprite == 0) return 0;
-	return SPRITE_GLYPH | key;
+	return SPRITE_GLYPH | sprite;
 }
 
 bool SpriteFontCache::GetDrawGlyphShadow()

src/heightmap.cpp

@@ -9,6 +9,7 @@
 
 #include "stdafx.h"
 #include "heightmap.h"
+#include "landscape.h"
 #include "clear_map.h"
 #include "strings_func.h"
 #include "void_map.h"
@@ -523,6 +524,10 @@ bool LoadHeightmap(DetailedFileType dft, std::string_view filename)
 	GrayscaleToMapHeights(x, y, map);
 
 	FixSlopes();
+
+	/* If all map borders are water, we will draw infinite water. */
+	_settings_game.game_creation.water_borders = (CheckWaterBorders(false) ? BORDERFLAGS_ALL : BorderFlag{});
+
 	MarkWholeScreenDirty();
 
 	return true;

src/landscape.cpp

@@ -635,6 +635,41 @@ void ClearSnowLine()
 	_snow_line = nullptr;
 }
 
+/**
+ * Check if all tiles on the map edge should be considered water borders.
+ * @param allow_non_flat_void Should we allow non-flat void tiles? (if map edge raised, then flattened to sea level)
+ * @return true If the edge of the map is flat and height 0, allowing for infinite water borders.
+ */
+bool CheckWaterBorders(bool allow_non_flat_void)
+{
+	auto check_tile = [allow_non_flat_void](uint x, uint y, Slope inner_edge) -> bool {
+		auto [slope, h] = GetTilePixelSlopeOutsideMap(x, y);
+
+		/* The edge tile is flat. */
+		if ((slope == SLOPE_FLAT) && (h == 0)) return true;
+		if (allow_non_flat_void && h == 0 && (slope & inner_edge) == 0 && IsTileType(TileXY(x, y), MP_VOID)) return true;
+		return false;
+	};
+
+	/* Check the map corners. */
+	if (!check_tile(0, 0, SLOPE_S)) return false;
+	if (!check_tile(0, Map::SizeY(), SLOPE_W)) return false;
+	if (!check_tile(Map::SizeX(), 0, SLOPE_E)) return false;
+	if (!check_tile(Map::SizeX(), Map::SizeY(), SLOPE_N)) return false;
+
+	/* Check the map edges.*/
+	for (uint x = 0; x <= Map::SizeX(); x++) {
+		if (!check_tile(x, 0, SLOPE_SE)) return false;
+		if (!check_tile(x, Map::SizeY(), SLOPE_NW)) return false;
+	}
+	for (uint y = 1; y < Map::SizeY(); y++) {
+		if (!check_tile(0, y, SLOPE_SW)) return false;
+		if (!check_tile(Map::SizeX(), y, SLOPE_NE)) return false;
+	}
+
+	return true;
+}
+
 /**
  * Clear a piece of landscape
  * @param flags of operation to conduct

src/landscape.h

@@ -33,6 +33,8 @@ uint8_t HighestSnowLine();
 uint8_t LowestSnowLine();
 void ClearSnowLine();
 
+bool CheckWaterBorders(bool allow_non_flat_void);
+
 int GetSlopeZInCorner(Slope tileh, Corner corner);
 std::tuple<Slope, int> GetFoundationSlope(TileIndex tile);
 

src/newgrf/newgrf_act0_roadstops.cpp

@@ -105,8 +105,8 @@ static ChangeInfoResult RoadStopChangeInfo(uint first, uint last, int prop, Byte
 				AddStringForMapping(GRFStringID{buf.ReadWord()}, [rs = rs.get()](StringID str) { RoadStopClass::Get(rs->class_index)->name = str; });
 				break;
 
-			case 0x0C: // The draw mode
-				rs->draw_mode = static_cast<RoadStopDrawMode>(buf.ReadByte());
+			case 0x0C: // The draw modes
+				rs->draw_mode = static_cast<RoadStopDrawModes>(buf.ReadByte());
 				break;
 
 			case 0x0D: // Cargo types for random triggers

src/newgrf_roadstop.cpp

@@ -298,7 +298,7 @@ void DrawRoadStopTile(int x, int y, RoadType roadtype, const RoadStopSpec *spec,
 
 	RoadStopDrawModes draw_mode;
 	if (spec->flags.Test(RoadStopSpecFlag::DrawModeRegister)) {
-		draw_mode = static_cast<RoadStopDrawMode>(object.GetRegister(0x100));
+		draw_mode = static_cast<RoadStopDrawModes>(object.GetRegister(0x100));
 	} else {
 		draw_mode = spec->draw_mode;
 	}

src/saveload/afterload.cpp

@@ -1024,6 +1024,27 @@ bool AfterLoadGame()
 		_settings_game.construction.freeform_edges = false;
 	}
 
+	/* Handle infinite water borders. */
+	if (IsSavegameVersionBefore(SLV_INFINITE_WATER_BORDERS)) {
+		if (CheckWaterBorders(true)) {
+			/* We passed the water borders check, yay! */
+			_settings_game.game_creation.water_borders = BORDERFLAGS_ALL;
+
+			/* Flatten void tiles, which may have been affected by terraforming near the map edge. */
+			for (uint x = 0; x <= Map::SizeX(); x++) {
+				SetTileHeightOutsideMap(x, 0, 0);
+				SetTileHeightOutsideMap(x, Map::SizeY(), 0);
+			}
+			for (uint y = 1; y < Map::SizeY(); y++) {
+				SetTileHeightOutsideMap(0, y, 0);
+				SetTileHeightOutsideMap(Map::SizeX(), y, 0);
+			}
+		} else {
+			/* Not all edges are ocean. */
+			_settings_game.game_creation.water_borders = BorderFlag{};
+		}
+	}
+
 	/* From version 9.0, we update the max passengers of a town (was sometimes negative
 	 *  before that. */
 	if (IsSavegameVersionBefore(SLV_9)) {

src/saveload/saveload.h

@@ -405,6 +405,7 @@ enum SaveLoadVersion : uint16_t {
 
 	SLV_FACE_STYLES,                        ///< 355  PR#14319 Addition of face styles, replacing gender and ethnicity.
 	SLV_INDUSTRY_NUM_VALID_HISTORY,         ///< 356  PR#14416 Store number of valid history records for industries.
+	SLV_INFINITE_WATER_BORDERS,             ///< 357  PR#13289 Draw infinite water when all borders are water.
 
 	SL_MAX_VERSION,                         ///< Highest possible saveload version
 };

src/script/api/script_controller.cpp

@@ -76,7 +76,7 @@ ScriptController::ScriptController(::CompanyID company) :
 
 /* static */ uint ScriptController::GetTick()
 {
-	return ScriptObject::GetActiveInstance().GetController()->ticks;
+	return ScriptObject::GetActiveInstance().GetController().ticks;
 }
 
 /* static */ int ScriptController::GetOpsTillSuspend()
@@ -96,9 +96,9 @@ ScriptController::ScriptController(::CompanyID company) :
 
 /* static */ HSQOBJECT ScriptController::Import(const std::string &library, const std::string &class_name, int version)
 {
-	ScriptController *controller = ScriptObject::GetActiveInstance().GetController();
-	Squirrel *engine = ScriptObject::GetActiveInstance().engine;
-	HSQUIRRELVM vm = engine->GetVM();
+	ScriptController &controller = ScriptObject::GetActiveInstance().GetController();
+	Squirrel &engine = *ScriptObject::GetActiveInstance().engine;
+	HSQUIRRELVM vm = engine.GetVM();
 
 	ScriptInfo *lib = ScriptObject::GetActiveInstance().FindLibrary(library, version);
 	if (lib == nullptr) {
@@ -114,11 +114,11 @@ ScriptController::ScriptController(::CompanyID company) :
 
 	std::string fake_class;
 
-	LoadedLibraryList::iterator it = controller->loaded_library.find(library_name);
-	if (it != controller->loaded_library.end()) {
+	LoadedLibraryList::iterator it = controller.loaded_library.find(library_name);
+	if (it != controller.loaded_library.end()) {
 		fake_class = (*it).second;
 	} else {
-		int next_number = ++controller->loaded_library_count;
+		int next_number = ++controller.loaded_library_count;
 
 		/* Create a new fake internal name */
 		fake_class = fmt::format("_internalNA{}", next_number);
@@ -128,14 +128,14 @@ ScriptController::ScriptController(::CompanyID company) :
 		sq_pushstring(vm, fake_class);
 		sq_newclass(vm, SQFalse);
 		/* Load the library */
-		if (!engine->LoadScript(vm, lib->GetMainScript(), false)) {
+		if (!engine.LoadScript(vm, lib->GetMainScript(), false)) {
 			throw sq_throwerror(vm, fmt::format("there was a compile error when importing '{}' version {}", library, version));
 		}
 		/* Create the fake class */
 		sq_newslot(vm, -3, SQFalse);
 		sq_pop(vm, 1);
 
-		controller->loaded_library[library_name] = fake_class;
+		controller.loaded_library[library_name] = fake_class;
 	}
 
 	/* Find the real class inside the fake class (like 'sets.Vector') */

src/script/api/script_object.cpp

@@ -45,7 +45,7 @@ void SimpleCountedObject::Release()
  * Get the storage associated with the current ScriptInstance.
  * @return The storage.
  */
-static ScriptStorage *GetStorage()
+static ScriptStorage &GetStorage()
 {
 	return ScriptObject::GetActiveInstance().GetStorage();
 }
@@ -65,7 +65,7 @@ ScriptObject::ActiveInstance::~ActiveInstance()
 }
 
 ScriptObject::DisableDoCommandScope::DisableDoCommandScope()
-	: AutoRestoreBackup(GetStorage()->allow_do_command, false)
+	: AutoRestoreBackup(GetStorage().allow_do_command, false)
 {}
 
 /* static */ ScriptInstance &ScriptObject::GetActiveInstance()
@@ -78,181 +78,181 @@ ScriptObject::DisableDoCommandScope::DisableDoCommandScope()
 /* static */ void ScriptObject::SetDoCommandDelay(uint ticks)
 {
 	assert(ticks > 0);
-	GetStorage()->delay = ticks;
+	GetStorage().delay = ticks;
 }
 
 /* static */ uint ScriptObject::GetDoCommandDelay()
 {
-	return GetStorage()->delay;
+	return GetStorage().delay;
 }
 
 /* static */ void ScriptObject::SetDoCommandMode(ScriptModeProc *proc, ScriptObject *instance)
 {
-	GetStorage()->mode = proc;
-	GetStorage()->mode_instance = instance;
+	GetStorage().mode = proc;
+	GetStorage().mode_instance = instance;
 }
 
 /* static */ ScriptModeProc *ScriptObject::GetDoCommandMode()
 {
-	return GetStorage()->mode;
+	return GetStorage().mode;
 }
 
 /* static */ ScriptObject *ScriptObject::GetDoCommandModeInstance()
 {
-	return GetStorage()->mode_instance;
+	return GetStorage().mode_instance;
 }
 
 /* static */ void ScriptObject::SetDoCommandAsyncMode(ScriptAsyncModeProc *proc, ScriptObject *instance)
 {
-	GetStorage()->async_mode = proc;
-	GetStorage()->async_mode_instance = instance;
+	GetStorage().async_mode = proc;
+	GetStorage().async_mode_instance = instance;
 }
 
 /* static */ ScriptAsyncModeProc *ScriptObject::GetDoCommandAsyncMode()
 {
-	return GetStorage()->async_mode;
+	return GetStorage().async_mode;
 }
 
 /* static */ ScriptObject *ScriptObject::GetDoCommandAsyncModeInstance()
 {
-	return GetStorage()->async_mode_instance;
+	return GetStorage().async_mode_instance;
 }
 
 /* static */ void ScriptObject::SetLastCommand(const CommandDataBuffer &data, Commands cmd)
 {
-	ScriptStorage *s = GetStorage();
-	Debug(script, 6, "SetLastCommand company={:02d} cmd={} data={}", s->root_company, cmd, FormatArrayAsHex(data));
-	s->last_data = data;
-	s->last_cmd = cmd;
+	ScriptStorage &s = GetStorage();
+	Debug(script, 6, "SetLastCommand company={:02d} cmd={} data={}", s.root_company, cmd, FormatArrayAsHex(data));
+	s.last_data = data;
+	s.last_cmd = cmd;
 }
 
 /* static */ bool ScriptObject::CheckLastCommand(const CommandDataBuffer &data, Commands cmd)
 {
-	ScriptStorage *s = GetStorage();
-	Debug(script, 6, "CheckLastCommand company={:02d} cmd={} data={}", s->root_company, cmd, FormatArrayAsHex(data));
-	if (s->last_cmd != cmd) return false;
-	if (s->last_data != data) return false;
+	ScriptStorage &s = GetStorage();
+	Debug(script, 6, "CheckLastCommand company={:02d} cmd={} data={}", s.root_company, cmd, FormatArrayAsHex(data));
+	if (s.last_cmd != cmd) return false;
+	if (s.last_data != data) return false;
 	return true;
 }
 
 /* static */ void ScriptObject::SetDoCommandCosts(Money value)
 {
-	GetStorage()->costs = CommandCost(INVALID_EXPENSES, value); // Expense type is never read.
+	GetStorage().costs = CommandCost(INVALID_EXPENSES, value); // Expense type is never read.
 }
 
 /* static */ void ScriptObject::IncreaseDoCommandCosts(Money value)
 {
-	GetStorage()->costs.AddCost(value);
+	GetStorage().costs.AddCost(value);
 }
 
 /* static */ Money ScriptObject::GetDoCommandCosts()
 {
-	return GetStorage()->costs.GetCost();
+	return GetStorage().costs.GetCost();
 }
 
 /* static */ void ScriptObject::SetLastError(ScriptErrorType last_error)
 {
-	GetStorage()->last_error = last_error;
+	GetStorage().last_error = last_error;
 }
 
 /* static */ ScriptErrorType ScriptObject::GetLastError()
 {
-	return GetStorage()->last_error;
+	return GetStorage().last_error;
 }
 
 /* static */ void ScriptObject::SetLastCost(Money last_cost)
 {
-	GetStorage()->last_cost = last_cost;
+	GetStorage().last_cost = last_cost;
 }
 
 /* static */ Money ScriptObject::GetLastCost()
 {
-	return GetStorage()->last_cost;
+	return GetStorage().last_cost;
 }
 
 /* static */ void ScriptObject::SetRoadType(RoadType road_type)
 {
-	GetStorage()->road_type = road_type;
+	GetStorage().road_type = road_type;
 }
 
 /* static */ RoadType ScriptObject::GetRoadType()
 {
-	return GetStorage()->road_type;
+	return GetStorage().road_type;
 }
 
 /* static */ void ScriptObject::SetRailType(RailType rail_type)
 {
-	GetStorage()->rail_type = rail_type;
+	GetStorage().rail_type = rail_type;
 }
 
 /* static */ RailType ScriptObject::GetRailType()
 {
-	return GetStorage()->rail_type;
+	return GetStorage().rail_type;
 }
 
 /* static */ void ScriptObject::SetLastCommandRes(bool res)
 {
-	GetStorage()->last_command_res = res;
+	GetStorage().last_command_res = res;
 }
 
 /* static */ bool ScriptObject::GetLastCommandRes()
 {
-	return GetStorage()->last_command_res;
+	return GetStorage().last_command_res;
 }
 
 /* static */ void ScriptObject::SetLastCommandResData(CommandDataBuffer data)
 {
-	GetStorage()->last_cmd_ret = std::move(data);
+	GetStorage().last_cmd_ret = std::move(data);
 }
 
 /* static */ const CommandDataBuffer &ScriptObject::GetLastCommandResData()
 {
-	return GetStorage()->last_cmd_ret;
+	return GetStorage().last_cmd_ret;
 }
 
 /* static */ void ScriptObject::SetCompany(::CompanyID company)
 {
-	if (GetStorage()->root_company == INVALID_OWNER) GetStorage()->root_company = company;
-	GetStorage()->company = company;
+	if (GetStorage().root_company == INVALID_OWNER) GetStorage().root_company = company;
+	GetStorage().company = company;
 
 	_current_company = company;
 }
 
 /* static */ ::CompanyID ScriptObject::GetCompany()
 {
-	return GetStorage()->company;
+	return GetStorage().company;
 }
 
 /* static */ ::CompanyID ScriptObject::GetRootCompany()
 {
-	return GetStorage()->root_company;
+	return GetStorage().root_company;
 }
 
 /* static */ bool ScriptObject::CanSuspend()
 {
 	Squirrel *squirrel = ScriptObject::GetActiveInstance().engine;
-	return GetStorage()->allow_do_command && squirrel->CanSuspend();
+	return GetStorage().allow_do_command && squirrel->CanSuspend();
 }
 
 /* static */ ScriptEventQueue &ScriptObject::GetEventQueue()
 {
-	return GetStorage()->event_queue;
+	return GetStorage().event_queue;
 }
 
 /* static */ ScriptLogTypes::LogData &ScriptObject::GetLogData()
 {
-	return GetStorage()->log_data;
+	return GetStorage().log_data;
 }
 
 /* static */ void ScriptObject::SetCallbackVariable(int index, int value)
 {
-	if (static_cast<size_t>(index) >= GetStorage()->callback_value.size()) GetStorage()->callback_value.resize(index + 1);
-	GetStorage()->callback_value[index] = value;
+	if (static_cast<size_t>(index) >= GetStorage().callback_value.size()) GetStorage().callback_value.resize(index + 1);
+	GetStorage().callback_value[index] = value;
 }
 
 /* static */ int ScriptObject::GetCallbackVariable(int index)
 {
-	return GetStorage()->callback_value[index];
+	return GetStorage().callback_value[index];
 }
 
 /* static */ CommandCallbackData *ScriptObject::GetDoCommandCallback()
@@ -310,8 +310,8 @@ ScriptObject::DisableDoCommandScope::DisableDoCommandScope()
 		IncreaseDoCommandCosts(res.GetCost());
 		if (!_generating_world) {
 			/* Charge a nominal fee for asynchronously executed commands */
-			Squirrel *engine = ScriptObject::GetActiveInstance().engine;
-			Squirrel::DecreaseOps(engine->GetVM(), 100);
+			Squirrel &engine = *ScriptObject::GetActiveInstance().engine;
+			Squirrel::DecreaseOps(engine.GetVM(), 100);
 		}
 		if (callback != nullptr) {
 			/* Insert return value into to stack and throw a control code that

src/script/script_instance.cpp

@@ -100,7 +100,7 @@ void ScriptInstance::Initialize(const std::string &main_script, const std::strin
 
 void ScriptInstance::RegisterAPI()
 {
-	squirrel_register_std(this->engine);
+	squirrel_register_std(*this->engine);
 }
 
 bool ScriptInstance::LoadCompatibilityScript(std::string_view api_version, Subdirectory dir)
@@ -318,9 +318,10 @@ void ScriptInstance::CollectGarbage()
 }
 
 
-ScriptStorage *ScriptInstance::GetStorage()
+ScriptStorage &ScriptInstance::GetStorage()
 {
-	return this->storage;
+	assert(this->storage != nullptr);
+	return *this->storage;
 }
 
 ScriptLogTypes::LogData &ScriptInstance::GetLogData()

src/script/script_instance.hpp

@@ -91,7 +91,7 @@ public:
 	/**
 	 * Get the storage of this script.
 	 */
-	class ScriptStorage *GetStorage();
+	class ScriptStorage &GetStorage();
 
 	/**
 	 * Get the log pointer of this script.
@@ -146,7 +146,11 @@ public:
 	/**
 	 * Get the controller attached to the instance.
 	 */
-	class ScriptController *GetController() { return controller; }
+	class ScriptController &GetController()
+	{
+		assert(this->controller != nullptr);
+		return *this->controller;
+	}
 
 	/**
 	 * Return the "this script died" value

src/script/squirrel.cpp

@@ -536,7 +536,7 @@ void Squirrel::Initialize()
 	sq_setforeignptr(this->vm, this);
 
 	sq_pushroottable(this->vm);
-	squirrel_register_global_std(this);
+	squirrel_register_global_std(*this);
 
 	/* Set consts table as delegate of root table, so consts/enums defined via require() are accessible */
 	sq_pushconsttable(this->vm);

src/script/squirrel_std.cpp

@@ -82,20 +82,20 @@ SQInteger SquirrelStd::notifyallexceptions(HSQUIRRELVM vm)
 	return SQ_ERROR;
 }
 
-void squirrel_register_global_std(Squirrel *engine)
+void squirrel_register_global_std(Squirrel &engine)
 {
 	/* We don't use squirrel_helper here, as we want to register to the global
 	 *  scope and not to a class. */
-	engine->AddMethod("require",             &SquirrelStd::require,             ".s");
-	engine->AddMethod("notifyallexceptions", &SquirrelStd::notifyallexceptions, ".b");
+	engine.AddMethod("require",             &SquirrelStd::require,             ".s");
+	engine.AddMethod("notifyallexceptions", &SquirrelStd::notifyallexceptions, ".b");
 }
 
-void squirrel_register_std(Squirrel *engine)
+void squirrel_register_std(Squirrel &engine)
 {
 	/* We don't use squirrel_helper here, as we want to register to the global
 	 *  scope and not to a class. */
-	engine->AddMethod("min", &SquirrelStd::min, ".ii");
-	engine->AddMethod("max", &SquirrelStd::max, ".ii");
+	engine.AddMethod("min", &SquirrelStd::min, ".ii");
+	engine.AddMethod("max", &SquirrelStd::max, ".ii");
 
-	sqstd_register_mathlib(engine->GetVM());
+	sqstd_register_mathlib(engine.GetVM());
 }

src/script/squirrel_std.hpp

@@ -52,12 +52,12 @@ public:
 /**
  * Register all standard functions we want to give to a script.
  */
-void squirrel_register_std(Squirrel *engine);
+void squirrel_register_std(Squirrel &engine);
 
 /**
  * Register all standard functions that are available on first startup.
  * @note this set is very limited, and is only meant to load other scripts and things like that.
  */
-void squirrel_register_global_std(Squirrel *engine);
+void squirrel_register_global_std(Squirrel &engine);
 
 #endif /* SQUIRREL_STD_HPP */

src/station_cmd.cpp

@@ -3331,7 +3331,7 @@ draw_default_foundation:
 			auto result = GetRoadStopLayout(ti, stopspec, st, type, view, regs100);
 			if (result.has_value()) {
 				if (stopspec->flags.Test(RoadStopSpecFlag::DrawModeRegister)) {
-					stop_draw_mode = static_cast<RoadStopDrawMode>(regs100[0]);
+					stop_draw_mode = static_cast<RoadStopDrawModes>(regs100[0]);
 				}
 				if (type == StationType::RoadWaypoint && stop_draw_mode.Test(RoadStopDrawMode::WaypGround)) {
 					draw_ground = true;

src/table/settings/world_settings.ini

@@ -264,6 +264,7 @@ cat      = SC_BASIC
 var      = game_creation.water_borders
 type     = SLE_UINT8
 from     = SLV_111
+flags    = SettingFlag::NewgameOnly
 def      = 15
 min      = 0
 max      = 16

src/terraform_cmd.cpp

@@ -111,16 +111,25 @@ static std::tuple<CommandCost, TileIndex> TerraformTileHeight(TerraformerState *
 	 */
 	if (height == TerraformGetHeightOfTile(ts, tile)) return { CMD_ERROR, INVALID_TILE };
 
-	/* Check "too close to edge of map". Only possible when freeform-edges is off. */
-	uint x = TileX(tile);
-	uint y = TileY(tile);
-	if (!_settings_game.construction.freeform_edges && ((x <= 1) || (y <= 1) || (x >= Map::MaxX() - 1) || (y >= Map::MaxY() - 1))) {
-		/*
-		 * Determine a sensible error tile
-		 */
-		if (x == 1) x = 0;
-		if (y == 1) y = 0;
-		return { CommandCost(STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP), TileXY(x, y) };
+	/* If the map has infinite water borders, don't allow terraforming the outer ring of tiles to avoid blocking ships in a confusing way. */
+	if (_settings_game.game_creation.water_borders == BORDERFLAGS_ALL) {
+		uint x = TileX(tile);
+		uint y = TileY(tile);
+
+		auto check_tile = [&](uint x_min, uint y_min, uint x_max, uint y_max) -> bool {
+			return ((x <= x_min) || (y <= y_min) || (x >= Map::MaxX() - x_max) || (y >= Map::MaxY() - y_max));
+		};
+
+		/* If free-form edges is off, distances are a bit different. */
+		if (!_settings_game.construction.freeform_edges && check_tile(1, 1, 1, 1)) {
+			/* Determine a sensible error tile. */
+			if (x == 1) x = 0;
+			if (y == 1) y = 0;
+			return { CommandCost(STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP), TileXY(x, y) };
+		}
+
+		/* Freeform edges are enabled. */
+		if (check_tile(2, 2, 1, 1)) return { CommandCost(STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP), TileXY(x, y) };
 	}
 
 	/* Mark incident tiles that are involved in the terraforming. */
@@ -209,7 +218,11 @@ std::tuple<CommandCost, Money, TileIndex> CmdTerraformLand(DoCommandFlags flags,
 			assert(t < Map::Size());
 			/* MP_VOID tiles can be terraformed but as tunnels and bridges
 			 * cannot go under / over these tiles they don't need checking. */
-			if (IsTileType(t, MP_VOID)) continue;
+			if (IsTileType(t, MP_VOID)) {
+				/* All water borders are drawn with infinite water, so don't allow terraforming off the map edge. */
+				if (_settings_game.game_creation.water_borders == BORDERFLAGS_ALL) return { CommandCost(STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP), 0, t };
+				continue;
+			}
 
 			/* Find new heights of tile corners */
 			int z_N = TerraformGetHeightOfTile(&ts, t + TileDiffXY(0, 0));

src/tile_map.h

@@ -61,6 +61,18 @@ inline void SetTileHeight(Tile tile, uint height)
 	tile.height() = height;
 }
 
+/**
+ * Sets the height of a tile, also for tiles outside the map (virtual "black" tiles).
+ *
+ * @param tile The tile to change the height
+ * @param height The new height value of the tile
+ * @pre height <= MAX_TILE_HEIGHT
+ */
+inline void SetTileHeightOutsideMap(int x, int y, uint height)
+{
+	SetTileHeight(TileXY(Clamp(x, 0, Map::MaxX()), Clamp(y, 0, Map::MaxY())), height);
+}
+
 /**
  * Returns the height of a tile in pixels.
  *

src/timetable_gui.cpp

@@ -427,6 +427,7 @@ struct TimetableWindow : Window {
 	void DrawTimetablePanel(const Rect &r) const
 	{
 		const Vehicle *v = this->vehicle;
+		if (v->GetNumOrders() == 0) return;
 		Rect tr = r.Shrink(WidgetDimensions::scaled.framerect);
 		int i = this->vscroll->GetPosition();
 		VehicleOrderID order_id = (i + 1) / 2;

src/void_cmd.cpp

@@ -21,7 +21,12 @@
 
 static void DrawTile_Void(TileInfo *ti)
 {
-	DrawGroundSprite(SPR_FLAT_BARE_LAND + SlopeToSpriteOffset(ti->tileh), PALETTE_ALL_BLACK);
+	/* If all borders are water, draw infinite water off the edges of the map. */
+	if (_settings_game.game_creation.water_borders == BORDERFLAGS_ALL) {
+		DrawGroundSprite(SPR_FLAT_WATER_TILE + SlopeToSpriteOffset(ti->tileh), PAL_NONE);
+	} else {
+		DrawGroundSprite(SPR_FLAT_BARE_LAND + SlopeToSpriteOffset(ti->tileh), PALETTE_ALL_BLACK);
+	}
 }