Merge branch 'master' into jgrpp

# Conflicts:
#	src/industry_cmd.cpp
#	src/landscape.cpp
#	src/object_cmd.cpp
#	src/rail_cmd.cpp
#	src/script/api/script_tile.cpp
#	src/table/settings/difficulty_settings.ini
#	src/table/settings/world_settings.ini
#	src/terraform_cmd.cpp
#	src/tilearea_type.h
#	src/tree_cmd.cpp
#	src/tree_cmd.h
#	src/tree_gui.cpp
#	src/water_cmd.cpp

src/bitmap_type.h

@@ -132,9 +132,9 @@ public:
 		return *this;
 	}
 
-	virtual TileIterator *Clone() const
+	virtual std::unique_ptr<TileIterator> Clone() const
 	{
-		return new BitmapTileIterator(*this);
+		return std::make_unique<BitmapTileIterator>(*this);
 	}
 };
 

src/landscape.cpp

@@ -1435,6 +1435,9 @@ static void CreateRivers()
 		}
 	}
 
+	/* Widening rivers may have left some tiles requiring to be watered. */
+	ConvertGroundTilesIntoWaterTiles();
+
 	/* Run tile loop to update the ground density. */
 	for (uint i = 0; i != 256; i++) {
 		if (i % 64 == 0) IncreaseGeneratingWorldProgress(GWP_RIVER);

src/lang/english.txt

@@ -399,7 +399,7 @@ STR_SCENEDIT_TOOLBAR_TOWN_GENERATION                            :{BLACK}Town gen
 STR_SCENEDIT_TOOLBAR_INDUSTRY_GENERATION                        :{BLACK}Industry generation
 STR_SCENEDIT_TOOLBAR_ROAD_CONSTRUCTION                          :{BLACK}Road construction
 STR_SCENEDIT_TOOLBAR_TRAM_CONSTRUCTION                          :{BLACK}Tramway construction
-STR_SCENEDIT_TOOLBAR_PLANT_TREES                                :{BLACK}Plant trees. Shift toggles building/showing cost estimate
+STR_SCENEDIT_TOOLBAR_PLANT_TREES                                :{BLACK}Plant trees. Ctrl selects the area diagonally. Shift toggles building/showing cost estimate
 STR_SCENEDIT_TOOLBAR_PLACE_SIGN                                 :{BLACK}Place sign
 STR_SCENEDIT_TOOLBAR_PLACE_OBJECT                               :{BLACK}Place object. Ctrl selects the area diagonally. Shift toggles building/showing cost estimate
 STR_SCENEDIT_TOOLBAR_PLACE_HOUSE                                :{BLACK}Place house
@@ -3776,7 +3776,7 @@ STR_SELECT_TOWN_LIST_ITEM                                       :{BLACK}{TOWN}
 STR_PLANT_TREE_CAPTION                                          :{WHITE}Trees
 STR_PLANT_TREE_TOOLTIP                                          :{BLACK}Select tree type to plant. If the tile already has a tree, this will add more trees of mixed types independent of the selected type
 STR_TREES_RANDOM_TYPE                                           :{BLACK}Trees of random type
-STR_TREES_RANDOM_TYPE_TOOLTIP                                   :{BLACK}Place trees of random type. Shift toggles building/showing cost estimate
+STR_TREES_RANDOM_TYPE_TOOLTIP                                   :{BLACK}Place trees of random type. Ctrl selects the area diagonally. Shift toggles building/showing cost estimate
 STR_TREES_RANDOM_TREES_BUTTON                                   :{BLACK}Random Trees
 STR_TREES_RANDOM_TREES_TOOLTIP                                  :{BLACK}Plant trees randomly throughout the landscape
 STR_TREES_REMOVE_TREES_BUTTON                                   :{BLACK}Remove all Trees

src/newgrf.cpp

@@ -1271,7 +1271,7 @@ static ChangeInfoResult RailVehicleChangeInfo(uint engine, int numinfo, int prop
 				break;
 
 			case 0x2F: // Engine variant
-				ei->variant_id = GetNewEngineID(_cur.grffile, VEH_TRAIN, buf->ReadWord());
+				ei->variant_id = buf->ReadWord();
 				break;
 
 			case 0x30: // Extra miscellaneous flags
@@ -1473,7 +1473,7 @@ static ChangeInfoResult RoadVehicleChangeInfo(uint engine, int numinfo, int prop
 			}
 
 			case 0x26: // Engine variant
-				ei->variant_id = GetNewEngineID(_cur.grffile, VEH_ROAD, buf->ReadWord());
+				ei->variant_id = buf->ReadWord();
 				break;
 
 			case 0x27: // Extra miscellaneous flags
@@ -1653,7 +1653,7 @@ static ChangeInfoResult ShipVehicleChangeInfo(uint engine, int numinfo, int prop
 			}
 
 			case 0x20: // Engine variant
-				ei->variant_id = GetNewEngineID(_cur.grffile, VEH_SHIP, buf->ReadWord());
+				ei->variant_id = buf->ReadWord();
 				break;
 
 			case 0x21: // Extra miscellaneous flags
@@ -1815,7 +1815,7 @@ static ChangeInfoResult AircraftVehicleChangeInfo(uint engine, int numinfo, int
 				break;
 
 			case 0x20: // Engine variant
-				ei->variant_id = GetNewEngineID(_cur.grffile, VEH_AIRCRAFT, buf->ReadWord());
+				ei->variant_id = buf->ReadWord();
 				break;
 
 			case 0x21: // Extra miscellaneous flags
@@ -10575,13 +10575,16 @@ static void FinaliseEngineArray()
 			}
 		}
 
-		if (!HasBit(e->info.climates, _settings_game.game_creation.landscape)) continue;
-
-		/* Set appropriate flags on variant engine */
+		/* Do final mapping on variant engine ID and set appropriate flags on variant engine */
 		if (e->info.variant_id != INVALID_ENGINE) {
-			Engine::Get(e->info.variant_id)->display_flags |= EngineDisplayFlags::HasVariants | EngineDisplayFlags::IsFolded;
+			e->info.variant_id = GetNewEngineID(e->grf_prop.grffile, e->type, e->info.variant_id);
+			if (e->info.variant_id != INVALID_ENGINE) {
+				Engine::Get(e->info.variant_id)->display_flags |= EngineDisplayFlags::HasVariants | EngineDisplayFlags::IsFolded;
+			}
 		}
 
+		if (!HasBit(e->info.climates, _settings_game.game_creation.landscape)) continue;
+
 		/* Skip wagons, there livery is defined via the engine */
 		if (e->type != VEH_TRAIN || e->u.rail.railveh_type != RAILVEH_WAGON) {
 			LiveryScheme ls = GetEngineLiveryScheme(e->index, INVALID_ENGINE, nullptr);

src/newgrf_airport.h

@@ -58,9 +58,9 @@ public:
 		return this->att->gfx;
 	}
 
-	virtual AirportTileTableIterator *Clone() const
+	virtual std::unique_ptr<TileIterator> Clone() const
 	{
-		return new AirportTileTableIterator(*this);
+		return std::make_unique<AirportTileTableIterator>(*this);
 	}
 };
 

src/os/macosx/string_osx.cpp

@@ -446,9 +446,9 @@ int MacOSStringCompare(const char *s1, const char *s2)
 	return this->utf16_to_utf8[this->cur_pos];
 }
 
-/* static */ StringIterator *OSXStringIterator::Create()
+/* static */ std::unique_ptr<StringIterator> OSXStringIterator::Create()
 {
 	if (!MacOSVersionIsAtLeast(10, 5, 0)) return nullptr;
 
-	return new OSXStringIterator();
+	return std::make_unique<OSXStringIterator>();
 }

src/os/macosx/string_osx.h

@@ -33,7 +33,7 @@ public:
 	size_t Next(IterType what) override;
 	size_t Prev(IterType what) override;
 
-	static StringIterator *Create();
+	static std::unique_ptr<StringIterator> Create();
 };
 
 /**

src/road_cmd.cpp

@@ -3019,8 +3019,8 @@ CommandCost CmdConvertRoad(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
 	CommandCost error = CommandCost((rtt == RTT_TRAM) ? STR_ERROR_NO_SUITABLE_TRAMWAY : STR_ERROR_NO_SUITABLE_ROAD); // by default, there is no road to convert.
 	bool found_convertible_road = false; // whether we actually did convert any road/tram (see bug #7633)
 
-	TileIterator *iter = new OrthogonalTileIterator(area_start, area_end);
-	for (; (tile = *iter) != INVALID_TILE; ++(*iter)) {
+	OrthogonalTileIterator iter(area_start, area_end);
+	for (; (tile = *iter) != INVALID_TILE; ++iter) {
 		/* Is road present on tile? */
 		if (!MayHaveRoad(tile)) continue;
 
@@ -3209,7 +3209,6 @@ CommandCost CmdConvertRoad(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
 		}
 	}
 
-	delete iter;
 	return found_convertible_road ? cost : error;
 }
 

src/settings_type.h

@@ -416,6 +416,7 @@ struct GameCreationSettings {
 	byte   landscape;                        ///< the landscape we're currently in
 	byte   water_borders;                    ///< bitset of the borders that are water
 	uint16 custom_town_number;               ///< manually entered number of towns
+	uint16 custom_industry_number;           ///< manually entered number of industries
 	byte   variety;                          ///< variety level applied to TGP
 	byte   custom_terrain_type;              ///< manually entered height for TGP to aim for
 	byte   custom_sea_level;                 ///< manually entered percentage of water in the map
@@ -431,7 +432,6 @@ struct GameCreationSettings {
 	uint8  amount_of_rocks;                  ///< the amount of rocks
 	uint8  height_affects_rocks;             ///< the affect that map height has on rocks
 	uint8  build_public_roads;               ///< build public roads connecting towns
-	uint16 custom_industry_number;           ///< manually entered number of industries
 };
 
 /** Settings related to construction in-game */

src/station_base.h

@@ -924,9 +924,9 @@ public:
 		return *this;
 	}
 
-	virtual TileIterator *Clone() const
+	virtual std::unique_ptr<TileIterator> Clone() const
 	{
-		return new AirportTileIterator(*this);
+		return std::make_unique<AirportTileIterator>(*this);
 	}
 };
 

src/string.cpp

@@ -905,9 +905,9 @@ int strnatcmp(const char *s1, const char *s2, bool ignore_garbage_at_front)
 
 #ifdef WITH_UNISCRIBE
 
-/* static */ StringIterator *StringIterator::Create()
+/* static */ std::unique_ptr<StringIterator> StringIterator::Create()
 {
-	return new UniscribeStringIterator();
+	return std::make_unique<UniscribeStringIterator>();
 }
 
 #elif defined(WITH_ICU_I18N)
@@ -1061,9 +1061,9 @@ public:
 	}
 };
 
-/* static */ StringIterator *StringIterator::Create()
+/* static */ std::unique_ptr<StringIterator> StringIterator::Create()
 {
-	return new IcuStringIterator();
+	return std::make_unique<IcuStringIterator>();
 }
 
 #else
@@ -1172,17 +1172,17 @@ public:
 };
 
 #if defined(WITH_COCOA) && !defined(STRGEN) && !defined(SETTINGSGEN)
-/* static */ StringIterator *StringIterator::Create()
+/* static */ std::unique_ptr<StringIterator> StringIterator::Create()
 {
-	StringIterator *i = OSXStringIterator::Create();
+	std::unique_ptr<StringIterator> i = OSXStringIterator::Create();
 	if (i != nullptr) return i;
 
-	return new DefaultStringIterator();
+	return std::make_unique<DefaultStringIterator>();
 }
 #else
-/* static */ StringIterator *StringIterator::Create()
+/* static */ std::unique_ptr<StringIterator> StringIterator::Create()
 {
-	return new DefaultStringIterator();
+	return std::make_unique<DefaultStringIterator>();
 }
 #endif /* defined(WITH_COCOA) && !defined(STRGEN) && !defined(SETTINGSGEN) */
 

src/string_base.h

@@ -26,7 +26,7 @@ public:
 	 * Create a new iterator instance.
 	 * @return New iterator instance.
 	 */
-	static StringIterator *Create();
+	static std::unique_ptr<StringIterator> Create();
 
 	virtual ~StringIterator() {}
 

src/textbuf.cpp

@@ -371,13 +371,11 @@ bool Textbuf::MovePos(uint16 keycode)
  * @param max_chars maximum size in chars, including terminating '\0'
  */
 Textbuf::Textbuf(uint16 max_bytes, uint16 max_chars)
-	: buf(MallocT<char>(max_bytes))
+	: buf(MallocT<char>(max_bytes)), char_iter(StringIterator::Create())
 {
 	assert(max_bytes != 0);
 	assert(max_chars != 0);
 
-	this->char_iter = StringIterator::Create();
-
 	this->afilter    = CS_ALPHANUMERAL;
 	this->max_bytes  = max_bytes;
 	this->max_chars  = max_chars == UINT16_MAX ? max_bytes : max_chars;
@@ -387,7 +385,6 @@ Textbuf::Textbuf(uint16 max_bytes, uint16 max_chars)
 
 Textbuf::~Textbuf()
 {
-	delete this->char_iter;
 	free(this->buf);
 }
 

src/textbuf_type.h

@@ -67,7 +67,7 @@ struct Textbuf {
 	void DiscardMarkedText(bool update = true);
 
 private:
-	StringIterator *char_iter;
+	std::unique_ptr<StringIterator> char_iter;
 
 	bool CanDelChar(bool backspace);
 

src/tilearea.cpp

@@ -280,3 +280,18 @@ TileIterator &DiagonalTileIterator::operator++()
 	if (this->b_max == this->b_cur) this->tile = INVALID_TILE;
 	return *this;
 }
+
+/**
+ * Create either an OrthogonalTileIterator or DiagonalTileIterator given the diagonal parameter.
+ * @param corner1 Tile from where to begin iterating.
+ * @param corner2 Tile where to end the iterating.
+ * @param diagonal Whether to create a DiagonalTileIterator or OrthogonalTileIterator.
+ * @return unique_ptr to the allocated TileIterator.
+ */
+/* static */ std::unique_ptr<TileIterator> TileIterator::Create(TileIndex corner1, TileIndex corner2, bool diagonal)
+{
+	if (diagonal) {
+		return std::make_unique<DiagonalTileIterator>(corner1, corner2);
+	}
+	return std::make_unique<OrthogonalTileIterator>(corner1, corner2);
+}

src/tilearea_type.h

@@ -154,7 +154,9 @@ public:
 	/**
 	 * Allocate a new iterator that is a copy of this one.
 	 */
-	virtual TileIterator *Clone() const = 0;
+	virtual std::unique_ptr<TileIterator> Clone() const = 0;
+
+	static std::unique_ptr<TileIterator> Create(TileIndex corner1, TileIndex corner2, bool diagonal);
 };
 
 /** Iterator to iterate over a tile area (rectangle) of the map. */
@@ -201,9 +203,9 @@ public:
 		return *this;
 	}
 
-	virtual TileIterator *Clone() const
+	virtual std::unique_ptr<TileIterator> Clone() const
 	{
-		return new OrthogonalTileIterator(*this);
+		return std::make_unique<OrthogonalTileIterator>(*this);
 	}
 };
 
@@ -227,11 +229,6 @@ public:
 		PREFETCH_NTA(&_m[ta.tile]);
 	}
 
-	/** Some compilers really like this. */
-	virtual ~OrthogonalPrefetchTileIterator()
-	{
-	}
-
 	/**
 	 * Get the tile we are currently at.
 	 * @return The tile we are at, or INVALID_TILE when we're done.
@@ -259,11 +256,6 @@ public:
 		}
 		return *this;
 	}
-
-	virtual OrthogonalPrefetchTileIterator *Clone() const
-	{
-		return new OrthogonalPrefetchTileIterator(*this);
-	}
 };
 
 /** Iterator to iterate over a diagonal area of the map. */
@@ -299,9 +291,9 @@ public:
 
 	TileIterator& operator ++();
 
-	virtual TileIterator *Clone() const
+	virtual std::unique_ptr<TileIterator> Clone() const
 	{
-		return new DiagonalTileIterator(*this);
+		return std::make_unique<DiagonalTileIterator>(*this);
 	}
 };