Merge 18dfad871a into 6b6caa6fa8

chinese (traditional): 1 change by KogentaSan
greek: 1 change by gh658804
hungarian: 1 change by vargaviktor
russian: 1 change by Ln-Wolf
finnish: 1 change by hpiirai
catalan: 49 changes by J0anJosep
portuguese: 2 changes by jcteotonio
portuguese (brazilian): 1 change by pasantoro
polish: 1 change by pAter-exe

src/aircraft_cmd.cpp

@@ -48,10 +48,7 @@
 
 void Aircraft::UpdateDeltaXY()
 {
-	this->x_offs = -1;
-	this->y_offs = -1;
-	this->x_extent = 2;
-	this->y_extent = 2;
+	this->bounds = {{-1, -1, 0}, {2, 2, 0}, {}};
 
 	switch (this->subtype) {
 		default: NOT_REACHED();
@@ -64,21 +61,21 @@ void Aircraft::UpdateDeltaXY()
 				case LANDING:
 				case HELILANDING:
 				case FLYING:
-					this->x_extent = 24;
-					this->y_extent = 24;
+					/* Bounds are not centred on the aircraft. */
+					this->bounds.extent.x = 24;
+					this->bounds.extent.y = 24;
 					break;
 			}
-			this->z_extent = 5;
+			this->bounds.extent.z = 5;
 			break;
 
 		case AIR_SHADOW:
-			this->z_extent = 1;
-			this->x_offs = 0;
-			this->y_offs = 0;
+			this->bounds.extent.z = 1;
+			this->bounds.origin = {};
 			break;
 
 		case AIR_ROTOR:
-			this->z_extent = 1;
+			this->bounds.extent.z = 1;
 			break;
 	}
 }

src/clear_cmd.cpp

@@ -69,36 +69,45 @@ static void DrawClearLandFence(const TileInfo *ti)
 	/* combine fences into one sprite object */
 	StartSpriteCombine();
 
-	int maxz = GetSlopeMaxPixelZ(ti->tileh);
+	SpriteBounds bounds = {{}, {TILE_SIZE, TILE_SIZE, 4}, {}};
+
+	bounds.extent.z += GetSlopeMaxPixelZ(ti->tileh);
 
 	uint fence_nw = GetFence(ti->tile, DIAGDIR_NW);
 	if (fence_nw != 0) {
-		int z = GetSlopePixelZInCorner(ti->tileh, CORNER_W);
+		bounds.offset.x = 0;
+		bounds.offset.y = -static_cast<int>(TILE_SIZE);
+		bounds.offset.z = GetSlopePixelZInCorner(ti->tileh, CORNER_W);
 		SpriteID sprite = _clear_land_fence_sprites[fence_nw - 1] + _fence_mod_by_tileh_nw[ti->tileh];
-		AddSortableSpriteToDraw(sprite, PAL_NONE, ti->x, ti->y - 16, 16, 32, maxz - z + 4, ti->z + z, false, 0, 16, -z);
+		AddSortableSpriteToDraw(sprite, PAL_NONE, *ti, bounds, false);
 	}
 
 	uint fence_ne = GetFence(ti->tile, DIAGDIR_NE);
 	if (fence_ne != 0) {
-		int z = GetSlopePixelZInCorner(ti->tileh, CORNER_E);
+		bounds.offset.x = -static_cast<int>(TILE_SIZE);
+		bounds.offset.y = 0;
+		bounds.offset.z = GetSlopePixelZInCorner(ti->tileh, CORNER_E);
 		SpriteID sprite = _clear_land_fence_sprites[fence_ne - 1] + _fence_mod_by_tileh_ne[ti->tileh];
-		AddSortableSpriteToDraw(sprite, PAL_NONE, ti->x - 16, ti->y, 32, 16, maxz - z + 4, ti->z + z, false, 16, 0, -z);
+		AddSortableSpriteToDraw(sprite, PAL_NONE, *ti, bounds, false);
 	}
 
 	uint fence_sw = GetFence(ti->tile, DIAGDIR_SW);
 	uint fence_se = GetFence(ti->tile, DIAGDIR_SE);
 
 	if (fence_sw != 0 || fence_se != 0) {
-		int z = GetSlopePixelZInCorner(ti->tileh, CORNER_S);
+		bounds.offset.x = 0;
+		bounds.offset.y = 0;
+		bounds.offset.z = GetSlopePixelZInCorner(ti->tileh, CORNER_S);
 
 		if (fence_sw != 0) {
 			SpriteID sprite = _clear_land_fence_sprites[fence_sw - 1] + _fence_mod_by_tileh_sw[ti->tileh];
-			AddSortableSpriteToDraw(sprite, PAL_NONE, ti->x, ti->y, 16, 16, maxz - z + 4, ti->z + z, false, 0, 0, -z);
+			AddSortableSpriteToDraw(sprite, PAL_NONE, *ti, bounds, false);
 		}
 
 		if (fence_se != 0) {
 			SpriteID sprite = _clear_land_fence_sprites[fence_se - 1] + _fence_mod_by_tileh_se[ti->tileh];
-			AddSortableSpriteToDraw(sprite, PAL_NONE, ti->x, ti->y, 16, 16, maxz - z + 4, ti->z + z, false, 0, 0, -z);
+			AddSortableSpriteToDraw(sprite, PAL_NONE, *ti, bounds, false);
+
 		}
 	}
 	EndSpriteCombine();

src/core/geometry_type.hpp

@@ -28,15 +28,30 @@ inline int CentreBounds(int min, int max, int size)
 	return (min + max - size + 1) / 2;
 }
 
-/** Coordinates of a point in 2D */
-struct Point {
-	int x;
-	int y;
+/** Coordinates of a point in 2D. */
+template <typename T>
+struct PointXy {
+	T x = 0; ///< X coordinate of point.
+	T y = 0; ///< Y coordinate of point.
 
-	constexpr Point() : x(0), y(0) {}
-	constexpr Point(int x, int y) : x(x), y(y) {}
+	constexpr PointXy() = default;
+	constexpr PointXy(T x, T y) : x(x), y(y) {}
 };
 
+/** Coordinates of a point in 3D. */
+template <typename T>
+struct PointXyz {
+	T x = 0; ///< X coordinate of point.
+	T y = 0; ///< Y coordinate of point.
+	T z = 0; ///< Z coordinate of point.
+
+	constexpr PointXyz() = default;
+	constexpr PointXyz(T x, T y, T z) : x(x), y(y), z(z) {}
+};
+
+/** Coordinates of a point in 2D */
+using Point = PointXy<int>;
+
 /** Dimensions (a width and height) of a rectangle in 2D */
 struct Dimension {
 	uint width;

src/disaster_vehicle.cpp

@@ -992,9 +992,5 @@ void ReleaseDisasterVehicle(VehicleID vehicle)
 
 void DisasterVehicle::UpdateDeltaXY()
 {
-	this->x_offs        = -1;
-	this->y_offs        = -1;
-	this->x_extent      =  2;
-	this->y_extent      =  2;
-	this->z_extent      =  5;
+	this->bounds = {{-1, -1, 0}, {2, 2, 5}, {}};
 }

src/effectvehicle.cpp

@@ -619,11 +619,7 @@ bool EffectVehicle::Tick()
 
 void EffectVehicle::UpdateDeltaXY()
 {
-	this->x_offs        = 0;
-	this->y_offs        = 0;
-	this->x_extent      = 1;
-	this->y_extent      = 1;
-	this->z_extent      = 1;
+	this->bounds = {{}, {1, 1, 1}, {}};
 }
 
 /**

src/elrail.cpp

@@ -248,27 +248,12 @@ static int GetPCPElevation(TileIndex tile, DiagDirection pcp_pos)
  */
 void DrawRailCatenaryOnTunnel(const TileInfo *ti)
 {
-	/* xmin, ymin, xmax + 1, ymax + 1 of BB */
-	static const int tunnel_wire_bb[4][4] = {
-		{ 0, 1, 16, 15 }, // NE
-		{ 1, 0, 15, 16 }, // SE
-		{ 0, 1, 16, 15 }, // SW
-		{ 1, 0, 15, 16 }, // NW
-	};
-
 	DiagDirection dir = GetTunnelBridgeDirection(ti->tile);
 
 	SpriteID wire_base = GetWireBase(ti->tile);
 
-	const SortableSpriteStruct *sss = &_rail_catenary_sprite_data_tunnel[dir];
-	const int *bb_data = tunnel_wire_bb[dir];
-	AddSortableSpriteToDraw(
-		wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
-		bb_data[2] - sss->x_offset, bb_data[3] - sss->y_offset, BB_Z_SEPARATOR - sss->z_offset + 1,
-		GetTilePixelZ(ti->tile) + sss->z_offset,
-		IsTransparencySet(TO_CATENARY),
-		bb_data[0] - sss->x_offset, bb_data[1] - sss->y_offset, BB_Z_SEPARATOR - sss->z_offset
-	);
+	const SortableSpriteStruct &sss = _rail_catenary_sprite_data_tunnel[dir];
+	AddSortableSpriteToDraw(wire_base + sss.image_offset, PAL_NONE, ti->x, ti->y, GetTilePixelZ(ti->tile), sss, IsTransparencySet(TO_CATENARY));
 }
 
 /**
@@ -440,8 +425,8 @@ static void DrawRailCatenaryRailway(const TileInfo *ti)
 						continue; // No neighbour, go looking for a better position
 					}
 
-					AddSortableSpriteToDraw(pylon_base + _pylon_sprites[temp], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE,
-						elevation, IsTransparencySet(TO_CATENARY), -1, -1);
+					AddSortableSpriteToDraw(pylon_base + _pylon_sprites[temp], PAL_NONE, x, y, elevation,
+						{{-1, -1, 0}, {1, 1, BB_HEIGHT_UNDER_BRIDGE}, {1, 1, 0}}, IsTransparencySet(TO_CATENARY));
 
 					break; // We already have drawn a pylon, bail out
 				}
@@ -482,7 +467,7 @@ static void DrawRailCatenaryRailway(const TileInfo *ti)
 
 		assert(pcp_config != 0); // We have a pylon on neither end of the wire, that doesn't work (since we have no sprites for that)
 		assert(!IsSteepSlope(tileh[TS_HOME]));
-		const SortableSpriteStruct *sss = &_rail_catenary_sprite_data[_rail_wires[tileh_selector][t][pcp_config]];
+		const SortableSpriteStruct &sss = _rail_catenary_sprite_data[_rail_wires[tileh_selector][t][pcp_config]];
 
 		/*
 		 * The "wire"-sprite position is inside the tile, i.e. 0 <= sss->?_offset < TILE_SIZE.
@@ -490,9 +475,8 @@ static void DrawRailCatenaryRailway(const TileInfo *ti)
 		 * Also note that the result of GetSlopePixelZ() is very special for bridge-ramps, so we round the result up or
 		 * down to the nearest full height change.
 		 */
-		AddSortableSpriteToDraw(wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
-			sss->x_size, sss->y_size, sss->z_size, (GetSlopePixelZ(ti->x + sss->x_offset, ti->y + sss->y_offset, true) + 4) / 8 * 8 + sss->z_offset,
-			IsTransparencySet(TO_CATENARY));
+		int z = (GetSlopePixelZ(ti->x + sss.origin.x, ti->y + sss.origin.y, true) + 4) / 8 * 8;
+		AddSortableSpriteToDraw(wire_base + sss.image_offset, PAL_NONE, ti->x, ti->y, z, sss, IsTransparencySet(TO_CATENARY));
 	}
 }
 
@@ -530,13 +514,12 @@ void DrawRailCatenaryOnBridge(const TileInfo *ti)
 
 	SpriteID wire_base = GetWireBase(end, TCX_ON_BRIDGE);
 
-	AddSortableSpriteToDraw(wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
-		sss->x_size, sss->y_size, sss->z_size, height + sss->z_offset,
-		IsTransparencySet(TO_CATENARY)
-	);
+	AddSortableSpriteToDraw(wire_base + sss->image_offset, PAL_NONE, ti->x, ti->y, height, *sss, IsTransparencySet(TO_CATENARY));
 
 	SpriteID pylon_base = GetPylonBase(end, TCX_ON_BRIDGE);
 
+	static constexpr SpriteBounds pylon_bounds{{-1, -1, 0}, {1, 1, BB_HEIGHT_UNDER_BRIDGE}, {1, 1, 0}};
+
 	/* Finished with wires, draw pylons
 	 * every other tile needs a pylon on the northern end */
 	if (num % 2) {
@@ -545,7 +528,7 @@ void DrawRailCatenaryOnBridge(const TileInfo *ti)
 		if (HasBit(tlg, (axis == AXIS_X ? 0 : 1))) ppp_pos = ReverseDir(ppp_pos);
 		uint x = ti->x + _x_pcp_offsets[pcp_pos] + _x_ppp_offsets[ppp_pos];
 		uint y = ti->y + _y_pcp_offsets[pcp_pos] + _y_ppp_offsets[ppp_pos];
-		AddSortableSpriteToDraw(pylon_base + _pylon_sprites[ppp_pos], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE, height, IsTransparencySet(TO_CATENARY), -1, -1);
+		AddSortableSpriteToDraw(pylon_base + _pylon_sprites[ppp_pos], PAL_NONE, x, y, height, pylon_bounds, IsTransparencySet(TO_CATENARY));
 	}
 
 	/* need a pylon on the southern end of the bridge */
@@ -555,7 +538,7 @@ void DrawRailCatenaryOnBridge(const TileInfo *ti)
 		if (HasBit(tlg, (axis == AXIS_X ? 0 : 1))) ppp_pos = ReverseDir(ppp_pos);
 		uint x = ti->x + _x_pcp_offsets[pcp_pos] + _x_ppp_offsets[ppp_pos];
 		uint y = ti->y + _y_pcp_offsets[pcp_pos] + _y_ppp_offsets[ppp_pos];
-		AddSortableSpriteToDraw(pylon_base + _pylon_sprites[ppp_pos], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE, height, IsTransparencySet(TO_CATENARY), -1, -1);
+		AddSortableSpriteToDraw(pylon_base + _pylon_sprites[ppp_pos], PAL_NONE, x, y, height, pylon_bounds, IsTransparencySet(TO_CATENARY));
 	}
 }
 
@@ -569,17 +552,12 @@ void DrawRailCatenary(const TileInfo *ti)
 	switch (GetTileType(ti->tile)) {
 		case MP_RAILWAY:
 			if (IsRailDepot(ti->tile)) {
-				const SortableSpriteStruct *sss = &_rail_catenary_sprite_data_depot[GetRailDepotDirection(ti->tile)];
+				const SortableSpriteStruct &sss = _rail_catenary_sprite_data_depot[GetRailDepotDirection(ti->tile)];
 
 				SpriteID wire_base = GetWireBase(ti->tile);
 
 				/* This wire is not visible with the default depot sprites */
-				AddSortableSpriteToDraw(
-					wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
-					sss->x_size, sss->y_size, sss->z_size,
-					GetTileMaxPixelZ(ti->tile) + sss->z_offset,
-					IsTransparencySet(TO_CATENARY)
-				);
+				AddSortableSpriteToDraw(wire_base + sss.image_offset, PAL_NONE, ti->x, ti->y, GetTileMaxPixelZ(ti->tile), sss, IsTransparencySet(TO_CATENARY));
 				return;
 			}
 			break;

src/industry_cmd.cpp

@@ -374,13 +374,7 @@ static void DrawTile_Industry(TileInfo *ti)
 	image = dits->building.sprite;
 	if (image != 0) {
 		AddSortableSpriteToDraw(image, SpriteLayoutPaletteTransform(image, dits->building.pal, GetColourPalette(ind->random_colour)),
-			ti->x + dits->subtile_x,
-			ti->y + dits->subtile_y,
-			dits->width,
-			dits->height,
-			dits->dz,
-			ti->z,
-			IsTransparencySet(TO_INDUSTRIES));
+			*ti, *dits, IsTransparencySet(TO_INDUSTRIES));
 
 		if (IsTransparencySet(TO_INDUSTRIES)) return;
 	}

src/landscape.cpp

@@ -450,9 +450,8 @@ void DrawFoundation(TileInfo *ti, Foundation f)
 	if (IsSteepSlope(ti->tileh)) {
 		if (!IsNonContinuousFoundation(f)) {
 			/* Lower part of foundation */
-			AddSortableSpriteToDraw(
-				leveled_base + (ti->tileh & ~SLOPE_STEEP), PAL_NONE, ti->x, ti->y, TILE_SIZE, TILE_SIZE, TILE_HEIGHT - 1, ti->z
-			);
+			static constexpr SpriteBounds bounds{{}, {TILE_SIZE, TILE_SIZE, TILE_HEIGHT - 1}, {}};
+			AddSortableSpriteToDraw(leveled_base + (ti->tileh & ~SLOPE_STEEP), PAL_NONE, *ti, bounds);
 		}
 
 		Corner highest_corner = GetHighestSlopeCorner(ti->tileh);
@@ -462,24 +461,25 @@ void DrawFoundation(TileInfo *ti, Foundation f)
 			/* inclined foundation */
 			uint8_t inclined = highest_corner * 2 + (f == FOUNDATION_INCLINED_Y ? 1 : 0);
 
-			AddSortableSpriteToDraw(inclined_base + inclined, PAL_NONE, ti->x, ti->y,
-				f == FOUNDATION_INCLINED_X ? TILE_SIZE : 1,
-				f == FOUNDATION_INCLINED_Y ? TILE_SIZE : 1,
-				TILE_HEIGHT, ti->z
-			);
+			SpriteBounds bounds{{}, {1, 1, TILE_HEIGHT}, {}};
+			if (f == FOUNDATION_INCLINED_X) bounds.extent.x = TILE_SIZE;
+			if (f == FOUNDATION_INCLINED_Y) bounds.extent.y = TILE_SIZE;
+			AddSortableSpriteToDraw(inclined_base + inclined, PAL_NONE, *ti, bounds);
 			OffsetGroundSprite(0, 0);
 		} else if (IsLeveledFoundation(f)) {
-			AddSortableSpriteToDraw(leveled_base + SlopeWithOneCornerRaised(highest_corner), PAL_NONE, ti->x, ti->y, TILE_SIZE, TILE_SIZE, TILE_HEIGHT - 1, ti->z - TILE_HEIGHT);
+			static constexpr SpriteBounds bounds{{0, 0, -(int)TILE_HEIGHT}, {TILE_SIZE, TILE_SIZE, TILE_HEIGHT - 1}, {}};
+			AddSortableSpriteToDraw(leveled_base + SlopeWithOneCornerRaised(highest_corner), PAL_NONE, *ti, bounds);
 			OffsetGroundSprite(0, -(int)TILE_HEIGHT);
 		} else if (f == FOUNDATION_STEEP_LOWER) {
 			/* one corner raised */
 			OffsetGroundSprite(0, -(int)TILE_HEIGHT);
 		} else {
 			/* halftile foundation */
-			int x_bb = (((highest_corner == CORNER_W) || (highest_corner == CORNER_S)) ? TILE_SIZE / 2 : 0);
-			int y_bb = (((highest_corner == CORNER_S) || (highest_corner == CORNER_E)) ? TILE_SIZE / 2 : 0);
+			int8_t x_bb = (((highest_corner == CORNER_W) || (highest_corner == CORNER_S)) ? TILE_SIZE / 2 : 0);
+			int8_t y_bb = (((highest_corner == CORNER_S) || (highest_corner == CORNER_E)) ? TILE_SIZE / 2 : 0);
 
-			AddSortableSpriteToDraw(halftile_base + highest_corner, PAL_NONE, ti->x + x_bb, ti->y + y_bb, TILE_SIZE / 2, TILE_SIZE / 2, TILE_HEIGHT - 1, ti->z + TILE_HEIGHT);
+			SpriteBounds bounds{{x_bb, y_bb, TILE_HEIGHT}, {TILE_SIZE / 2, TILE_SIZE / 2, TILE_HEIGHT - 1}, {}};
+			AddSortableSpriteToDraw(halftile_base + highest_corner, PAL_NONE, *ti, bounds);
 			/* Reposition ground sprite back to original position after bounding box change above. This is similar to
 			 * RemapCoords() but without zoom scaling. */
 			Point pt = {(y_bb - x_bb) * 2, y_bb + x_bb};
@@ -488,15 +488,17 @@ void DrawFoundation(TileInfo *ti, Foundation f)
 	} else {
 		if (IsLeveledFoundation(f)) {
 			/* leveled foundation */
-			AddSortableSpriteToDraw(leveled_base + ti->tileh, PAL_NONE, ti->x, ti->y, TILE_SIZE, TILE_SIZE, TILE_HEIGHT - 1, ti->z);
+			static constexpr SpriteBounds bounds{{}, {TILE_SIZE, TILE_SIZE, TILE_HEIGHT - 1}, {}};
+			AddSortableSpriteToDraw(leveled_base + ti->tileh, PAL_NONE, *ti, bounds);
 			OffsetGroundSprite(0, -(int)TILE_HEIGHT);
 		} else if (IsNonContinuousFoundation(f)) {
 			/* halftile foundation */
 			Corner halftile_corner = GetHalftileFoundationCorner(f);
-			int x_bb = (((halftile_corner == CORNER_W) || (halftile_corner == CORNER_S)) ? TILE_SIZE / 2 : 0);
-			int y_bb = (((halftile_corner == CORNER_S) || (halftile_corner == CORNER_E)) ? TILE_SIZE / 2 : 0);
+			int8_t x_bb = (((halftile_corner == CORNER_W) || (halftile_corner == CORNER_S)) ? TILE_SIZE / 2 : 0);
+			int8_t y_bb = (((halftile_corner == CORNER_S) || (halftile_corner == CORNER_E)) ? TILE_SIZE / 2 : 0);
 
-			AddSortableSpriteToDraw(halftile_base + halftile_corner, PAL_NONE, ti->x + x_bb, ti->y + y_bb, TILE_SIZE / 2, TILE_SIZE / 2, TILE_HEIGHT - 1, ti->z);
+			SpriteBounds bounds{{x_bb, y_bb, 0}, {TILE_SIZE / 2, TILE_SIZE / 2, TILE_HEIGHT - 1}, {}};
+			AddSortableSpriteToDraw(halftile_base + halftile_corner, PAL_NONE, *ti, bounds);
 			/* Reposition ground sprite back to original position after bounding box change above. This is similar to
 			 * RemapCoords() but without zoom scaling. */
 			Point pt = {(y_bb - x_bb) * 2, y_bb + x_bb};
@@ -511,17 +513,17 @@ void DrawFoundation(TileInfo *ti, Foundation f)
 				/* tile-slope = sloped along X/Y, foundation-slope = three corners raised */
 				spr = inclined_base + 2 * GetRailFoundationCorner(f) + ((ti->tileh == SLOPE_SW || ti->tileh == SLOPE_NE) ? 1 : 0);
 			}
-			AddSortableSpriteToDraw(spr, PAL_NONE, ti->x, ti->y, TILE_SIZE, TILE_SIZE, TILE_HEIGHT - 1, ti->z);
+			static constexpr SpriteBounds bounds{{}, {TILE_SIZE, TILE_SIZE, TILE_HEIGHT - 1}, {}};
+			AddSortableSpriteToDraw(spr, PAL_NONE, *ti, bounds);
 			OffsetGroundSprite(0, 0);
 		} else {
 			/* inclined foundation */
 			uint8_t inclined = GetHighestSlopeCorner(ti->tileh) * 2 + (f == FOUNDATION_INCLINED_Y ? 1 : 0);
 
-			AddSortableSpriteToDraw(inclined_base + inclined, PAL_NONE, ti->x, ti->y,
-				f == FOUNDATION_INCLINED_X ? TILE_SIZE : 1,
-				f == FOUNDATION_INCLINED_Y ? TILE_SIZE : 1,
-				TILE_HEIGHT, ti->z
-			);
+			SpriteBounds bounds{{}, {1, 1, TILE_HEIGHT}, {}};
+			if (f == FOUNDATION_INCLINED_X) bounds.extent.x = TILE_SIZE;
+			if (f == FOUNDATION_INCLINED_Y) bounds.extent.y = TILE_SIZE;
+			AddSortableSpriteToDraw(inclined_base + inclined, PAL_NONE, *ti, bounds);
 			OffsetGroundSprite(0, 0);
 		}
 		ti->z += ApplyPixelFoundationToSlope(f, ti->tileh);

src/lang/brazilian_portuguese.txt

@@ -5002,6 +5002,7 @@ STR_ERROR_FLAT_LAND_REQUIRED                                    :{WHITE}O terren
 STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION                        :{WHITE}Terreno inclinado na direção errada
 STR_ERROR_CAN_T_DO_THIS                                         :{WHITE}Não é possível fazer isto...
 STR_ERROR_BUILDING_MUST_BE_DEMOLISHED                           :{WHITE}A construção precisa ser demolida primeiro
+STR_ERROR_BUILDING_IS_PROTECTED                                 :{WHITE}... construção é protegida
 STR_ERROR_CAN_T_CLEAR_THIS_AREA                                 :{WHITE}Não é possível limpar esta área...
 STR_ERROR_SITE_UNSUITABLE                                       :{WHITE}... local não adequado
 STR_ERROR_ALREADY_BUILT                                         :{WHITE}... já construído

src/lang/catalan.txt

@@ -268,6 +268,7 @@ STR_UNITS_YEARS                                                 :{NUM}{NBSP}any{
 STR_UNITS_PERIODS                                               :{NUM}{NBSP}període{P "" s}
 
 STR_LIST_SEPARATOR                                              :,{SPACE}
+STR_TRUNCATION_ELLIPSIS                                         :...
 
 # Common window strings
 STR_LIST_FILTER_TITLE                                           :{BLACK}Filtre:
@@ -286,7 +287,7 @@ STR_TOOLTIP_CLOSE_WINDOW                                        :{BLACK}Tanca la
 STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS                              :{BLACK}Títol de la finestra: arrossegueu el títol per desplaçar la finestra.
 STR_TOOLTIP_SHADE                                               :{BLACK}Ombra de la finestra: mostra només la barra de títol.
 STR_TOOLTIP_DEBUG                                               :{BLACK}Mostra la informació de depuració NewGRF
-STR_TOOLTIP_DEFSIZE                                             :{BLACK}Redimensiona la finestra a la mida predeterminada. Ctrl+Clic desa la mida actual com a predeterminada.
+STR_TOOLTIP_DEFSIZE                                             :{BLACK}Redimensiona la finestra a la mida predeterminada. Amb Ctrl+Clic, es desa la mida actual com a predeterminada. Amb Ctrl+doble clic, es restableix als valors per defecte.
 STR_TOOLTIP_STICKY                                              :{BLACK}Marca aquesta finestra com a no eliminable per la tecla «Tanca totes les finestres». Ctrl+Clic per desar també l'estat predeterminat.
 STR_TOOLTIP_RESIZE                                              :{BLACK}Clica i arrossega per redimensionar aquesta finestra
 STR_TOOLTIP_TOGGLE_LARGE_SMALL_WINDOW                           :{BLACK}Commuta entre la mida gran i petita de la finestra
@@ -1108,7 +1109,7 @@ STR_GAME_OPTIONS_BASE_MUSIC_DESCRIPTION_TOOLTIP                 :Informació add
 STR_GAME_OPTIONS_ONLINE_CONTENT                                 :Descarrega contingut
 STR_GAME_OPTIONS_ONLINE_CONTENT_TOOLTIP                         :Comprova si hi ha continguts nous o actualitzats per a descarregar.
 
-STR_GAME_OPTIONS_SOCIAL_PLUGINS_NONE                            :{LTBLUE}(no s'han instal·lat complements per a interactuar amb plataformes socials)
+STR_GAME_OPTIONS_SOCIAL_PLUGINS_NONE                            :(no s'han instal·lat complements per a interactuar amb plataformes socials)
 
 STR_GAME_OPTIONS_SOCIAL_PLUGIN_TITLE                            :{STRING} ({STRING})
 STR_GAME_OPTIONS_SOCIAL_PLUGIN_PLATFORM                         :Plataforma:
@@ -1226,7 +1227,7 @@ STR_CITY_APPROVAL_PERMISSIVE                                    :Permissiva (les
 STR_WARNING_NO_SUITABLE_AI                                      :{WHITE}No hi ha cap IA disponible...{}Podeu descarregar-ne a través del «Contingut en línia».
 
 # Settings tree in the Game Options window
-STR_CONFIG_SETTING_FILTER_TITLE                                 :{G=Masculin}{BLACK}Filtre:
+STR_CONFIG_SETTING_FILTER_TITLE                                 :{G=Masculin}Filtre:
 STR_CONFIG_SETTING_EXPAND_ALL                                   :Desplega-ho tot
 STR_CONFIG_SETTING_COLLAPSE_ALL                                 :Plega-ho tot
 STR_CONFIG_SETTING_RESET_ALL                                    :Restableix tots els valors
@@ -1302,6 +1303,9 @@ STR_CONFIG_SETTING_INTEREST_RATE_HELPTEXT                       :Tipus d'interè
 STR_CONFIG_SETTING_RUNNING_COSTS                                :Costos d'utilització: {STRING}
 STR_CONFIG_SETTING_RUNNING_COSTS_HELPTEXT                       :Fixa el nivell de manteniment i els costos d'utilització dels vehicles i infraestructures
 ###length 3
+STR_CONFIG_SETTING_RUNNING_COSTS_LOW                            :Baix
+STR_CONFIG_SETTING_RUNNING_COSTS_MEDIUM                         :Mitjà
+STR_CONFIG_SETTING_RUNNING_COSTS_HIGH                           :Alt
 
 STR_CONFIG_SETTING_CONSTRUCTION_SPEED                           :Ritme de construcció: {STRING}
 STR_CONFIG_SETTING_CONSTRUCTION_SPEED_HELPTEXT                  :Limita la quantitat d'accions de construcció per part de les IA
@@ -1324,6 +1328,9 @@ STR_CONFIG_SETTING_SUBSIDY_DURATION_DISABLED                    :Sense subsidis
 STR_CONFIG_SETTING_CONSTRUCTION_COSTS                           :Costos de construcció: {STRING}
 STR_CONFIG_SETTING_CONSTRUCTION_COSTS_HELPTEXT                  :Fixa el nivell de construcció i els preus de compra
 ###length 3
+STR_CONFIG_SETTING_CONSTRUCTION_COSTS_LOW                       :Baix
+STR_CONFIG_SETTING_CONSTRUCTION_COSTS_MEDIUM                    :Mitjà
+STR_CONFIG_SETTING_CONSTRUCTION_COSTS_HIGH                      :Alt
 
 STR_CONFIG_SETTING_RECESSIONS                                   :Recessions: {STRING}
 STR_CONFIG_SETTING_RECESSIONS_HELPTEXT                          :Si està activat, poden haver recessions periòdicament. Durant una recessió, tota la producció és significativament més baixa, tornant al nivell previ quan s'acabi el període de recessió.
@@ -2079,9 +2086,9 @@ STR_CONFIG_SETTING_DISTRIBUTION_ARMOURED_HELPTEXT               :La classe de c
 STR_CONFIG_SETTING_DISTRIBUTION_DEFAULT                         :Mode de distribució per altres classes de càrrega: {STRING}
 STR_CONFIG_SETTING_DISTRIBUTION_DEFAULT_HELPTEXT                :"Asimètric" vol dir que quantitats arbitràries de càrrega poden ser enviades en qualsevol sentit. "Manual" significa que no s'aplicarà cap distribució automàtica a aquestes càrregues.
 ###length 3
-STR_CONFIG_SETTING_DISTRIBUTION_MANUAL                          :manual
-STR_CONFIG_SETTING_DISTRIBUTION_ASYMMETRIC                      :asimètric
-STR_CONFIG_SETTING_DISTRIBUTION_SYMMETRIC                       :simètric
+STR_CONFIG_SETTING_DISTRIBUTION_MANUAL                          :Manual
+STR_CONFIG_SETTING_DISTRIBUTION_ASYMMETRIC                      :Asimètric
+STR_CONFIG_SETTING_DISTRIBUTION_SYMMETRIC                       :Simètric
 
 STR_CONFIG_SETTING_LINKGRAPH_ACCURACY                           :Precisió de la distribució: {STRING}
 STR_CONFIG_SETTING_LINKGRAPH_ACCURACY_HELPTEXT                  :Com més alt el valor indicat, més temps de processador requerirà el càlcul del graf de distribució. Si requereix massa temps podeu notar ralentització. Si indiqueu un valor baix, però, la distribució serà poc acurada, i us podeu trobar que la càrrega no és enviada als llocs que espereu.
@@ -2331,16 +2338,19 @@ STR_FACE_SIMPLE_TOOLTIP                                         :{BLACK}Selecci
 STR_FACE_LOAD                                                   :{BLACK}Carrega
 STR_FACE_LOAD_TOOLTIP                                           :{BLACK}Carrega la cara preferida
 STR_FACE_LOAD_DONE                                              :{WHITE}S'ha carregat la cara personalitzada des de l'arxiu de configuració de l'OpenTTD.
-STR_FACE_FACECODE                                               :{BLACK}Número de la cara
-STR_FACE_FACECODE_TOOLTIP                                       :{BLACK}Veure i/o assigna el número de la cara del president
-STR_FACE_FACECODE_CAPTION                                       :{WHITE}Veure i/o assigna el número de la cara del president
-STR_FACE_FACECODE_SET                                           :{WHITE}El número de la nova cara ha estat assignat
-STR_FACE_FACECODE_ERR                                           :{WHITE}No s'ha pogut assignar el número de cara del president - ha de ser un nombre entre 0 i 4,294,967,295!
+STR_FACE_FACECODE                                               :{BLACK}Codi de la cara
+STR_FACE_FACECODE_TOOLTIP                                       :{BLACK}Veure i/o assigna el codi de la cara del president
+STR_FACE_FACECODE_CAPTION                                       :{WHITE}Veure i/o assigna el codi de la cara del president
+STR_FACE_FACECODE_SET                                           :{WHITE}S'ha assignat el codi de la nova cara del president.
+STR_FACE_FACECODE_ERR                                           :{WHITE}No s'ha pogut assignar el codi de cara del president - ha de ser una etiqueta i nombre vàlids.
 STR_FACE_SAVE                                                   :{BLACK}Desa
 STR_FACE_SAVE_TOOLTIP                                           :{BLACK}Desa la cara preferida
 STR_FACE_SAVE_DONE                                              :{WHITE}Es desarà aquesta cara personalitzada a l'arxiu de configuració de l'OpenTTD.
+STR_FACE_SETTING_TOGGLE                                         :{STRING} {ORANGE}{STRING}
+STR_FACE_SETTING_NUMERIC                                        :{STRING} {ORANGE}{NUM} / {NUM}
 STR_FACE_YES                                                    :Sí
 STR_FACE_NO                                                     :No
+STR_FACE_STYLE                                                  :Estil:
 STR_FACE_HAIR                                                   :Cabell:
 STR_FACE_EYEBROWS                                               :Celles:
 STR_FACE_EYECOLOUR                                              :Color dels ulls:
@@ -2813,6 +2823,10 @@ STR_PICKER_MODE_USED_TOOLTIP                                    :Commuta entre m
 STR_PICKER_MODE_SAVED                                           :Desats
 STR_PICKER_MODE_SAVED_TOOLTIP                                   :Commuta entre mostrar tots o bé només els elements desats.
 
+STR_PICKER_PREVIEW_SHRINK                                       :‒
+STR_PICKER_PREVIEW_SHRINK_TOOLTIP                               :Redueix l'alçària de les vistes prèvies. Amb Ctrl+clic, es redueix fins al mínim.
+STR_PICKER_PREVIEW_EXPAND                                       :+
+STR_PICKER_PREVIEW_EXPAND_TOOLTIP                               :Augmenta l'alçària de les vistes prèvies. Amb Ctrl+clic, s'augmenta fins al màxim.
 
 STR_PICKER_STATION_CLASS_TOOLTIP                                :Trieu quina classe d'estació voleu veure.
 STR_PICKER_STATION_TYPE_TOOLTIP                                 :Trieu quin tipus d'estació voleu construir. Amb Ctrl+clic, s'afegeix o es trau l'element de la llista de desats.
@@ -3053,6 +3067,11 @@ STR_FOUND_TOWN_INITIAL_SIZE_TOOLTIP                             :{BLACK}Seleccio
 STR_FOUND_TOWN_CITY                                             :{BLACK}Ciutat
 STR_FOUND_TOWN_CITY_TOOLTIP                                     :{BLACK}Les ciutats creixen més ràpid que els pobles{}Depenent de la configuració, són més grans quan es funden
 
+STR_FOUND_TOWN_EXPAND_MODE                                      :{YELLOW}Expansió de la població:
+STR_FOUND_TOWN_EXPAND_BUILDINGS                                 :Edificis
+STR_FOUND_TOWN_EXPAND_BUILDINGS_TOOLTIP                         :Augmenta el nombre d'edificis de les poblacions.
+STR_FOUND_TOWN_EXPAND_ROADS                                     :Carreteres
+STR_FOUND_TOWN_EXPAND_ROADS_TOOLTIP                             :Augmenta el nombre de carreteres de la població.
 
 STR_FOUND_TOWN_ROAD_LAYOUT                                      :{YELLOW}Disposició de les carreteres de la població:
 STR_FOUND_TOWN_SELECT_LAYOUT_TOOLTIP                            :{BLACK}Selecciona la disposició de les carreteres utilitzades per a aquesta població
@@ -3677,6 +3696,10 @@ STR_TOWN_VIEW_RENAME_TOOLTIP                                    :{BLACK}Canvia e
 
 STR_TOWN_VIEW_EXPAND_BUTTON                                     :{BLACK}Eixampla
 STR_TOWN_VIEW_EXPAND_TOOLTIP                                    :{BLACK}Incrementa la mida de la població
+STR_TOWN_VIEW_EXPAND_BUILDINGS_BUTTON                           :{BLACK}Expandeix els edificis
+STR_TOWN_VIEW_EXPAND_BUILDINGS_TOOLTIP                          :{BLACK}Augmenta el nombre d'edificis de la població.
+STR_TOWN_VIEW_EXPAND_ROADS_BUTTON                               :{BLACK}Expandeix les carreteres
+STR_TOWN_VIEW_EXPAND_ROADS_TOOLTIP                              :{BLACK}Augmenta el nombre de carreteres de la població.
 STR_TOWN_VIEW_DELETE_BUTTON                                     :{BLACK}Esborra
 STR_TOWN_VIEW_DELETE_TOOLTIP                                    :{BLACK}Esborra totalment aquesta població
 
@@ -4415,10 +4438,10 @@ STR_VEHICLE_VIEW_SHIP_ORDERS_TOOLTIP                            :{BLACK}Mostra l
 STR_VEHICLE_VIEW_AIRCRAFT_ORDERS_TOOLTIP                        :{BLACK}Mostra les ordres de l'avió. Ctrl+Clic per mostrar l'horari de l'avió
 
 ###length VEHICLE_TYPES
-STR_VEHICLE_VIEW_TRAIN_SHOW_DETAILS_TOOLTIP                     :{BLACK}Mostra els detalls del tren
-STR_VEHICLE_VIEW_ROAD_VEHICLE_SHOW_DETAILS_TOOLTIP              :{BLACK}Mostra els detalls del vehicle
-STR_VEHICLE_VIEW_SHIP_SHOW_DETAILS_TOOLTIP                      :{BLACK}Mostra els detalls del vaixell
-STR_VEHICLE_VIEW_AIRCRAFT_SHOW_DETAILS_TOOLTIP                  :{BLACK}Mostra els detalls de l'avió
+STR_VEHICLE_VIEW_TRAIN_SHOW_DETAILS_TOOLTIP                     :{BLACK}Mostra els detalls del tren. Amb Ctrl+clic, es mostra el grup del tren.
+STR_VEHICLE_VIEW_ROAD_VEHICLE_SHOW_DETAILS_TOOLTIP              :{BLACK}Mostra els detalls del vehicle. Amb Ctrl+clic, es mostra el grup del vehicle.
+STR_VEHICLE_VIEW_SHIP_SHOW_DETAILS_TOOLTIP                      :{BLACK}Mostra els detalls del vaixell. Amb Ctrl+clic, es mostra el grup del vaixell.
+STR_VEHICLE_VIEW_AIRCRAFT_SHOW_DETAILS_TOOLTIP                  :{BLACK}Mostra els detalls de l'aeronau. Amb Ctrl+clic, es mostra el grup de l'aeronau.
 
 ###length VEHICLE_TYPES
 STR_VEHICLE_VIEW_TRAIN_STATUS_START_STOP_TOOLTIP                :{BLACK}Acció actual del tren - Feu clic per parar-lo o engegar-lo.
@@ -4742,14 +4765,15 @@ STR_TIMETABLE_TOOLTIP                                           :{BLACK}Horari -
 STR_TIMETABLE_NO_TRAVEL                                         :Sense viatge
 STR_TIMETABLE_NOT_TIMETABLEABLE                                 :Viatge (automàtic; programat per la següent ordre manual)
 STR_TIMETABLE_TRAVEL_NOT_TIMETABLED                             :Viatge (fora d'horari)
+STR_TIMETABLE_TRAVEL_NOT_TIMETABLED_SPEED                       :Viatja (sense horari) com a molt a {VELOCITY}
 STR_TIMETABLE_TRAVEL_FOR                                        :Viatge a {STRING}
 STR_TIMETABLE_TRAVEL_FOR_SPEED                                  :Viatja durant {STRING} com a molt a {VELOCITY}
 STR_TIMETABLE_TRAVEL_FOR_ESTIMATED                              :Viatja (durant {STRING}, sense horari)
 STR_TIMETABLE_TRAVEL_FOR_SPEED_ESTIMATED                        :Viatja (durant {STRING}, sense horari) com a molt a {VELOCITY}
 STR_TIMETABLE_STAY_FOR_ESTIMATED                                :{SPACE}(quedar-s'hi durant {STRING}, sense horari)
 STR_TIMETABLE_AND_TRAVEL_FOR_ESTIMATED                          :{SPACE}(viatja durant {STRING}, sense horari)
-STR_TIMETABLE_STAY_FOR                                          :i estigues {STRING}
-STR_TIMETABLE_AND_TRAVEL_FOR                                    :i viatge per {STRING}
+STR_TIMETABLE_STAY_FOR                                          :{SPACE}i estigues {STRING}
+STR_TIMETABLE_AND_TRAVEL_FOR                                    :{SPACE}i viatja durant {STRING}
 
 STR_TIMETABLE_APPROX_TIME                                       :{BLACK}L'horari trigara aproximadament {STRING} a completar-se.
 STR_TIMETABLE_TOTAL_TIME                                        :{BLACK}L'horari tardarà {STRING} a complir-se
@@ -5897,3 +5921,11 @@ STR_SHIP                                                        :{BLACK}{SHIP}
 STR_TOOLBAR_RAILTYPE_VELOCITY                                   :{STRING} ({VELOCITY})
 
 STR_BADGE_NAME_LIST                                             :{STRING}: {GOLD}{STRING}
+STR_BADGE_CONFIG_MENU_TOOLTIP                                   :Obre la configuració d'insígnies
+STR_BADGE_CONFIG_RESET                                          :Restableix
+STR_BADGE_CONFIG_ICONS                                          :{WHITE}Icones d'insígnies
+STR_BADGE_CONFIG_FILTERS                                        :{WHITE}Filtres d'insígnies
+STR_BADGE_CONFIG_PREVIEW                                        :Imatge de previsualització
+STR_BADGE_CONFIG_NAME                                           :Nom
+STR_BADGE_FILTER_ANY_LABEL                                      :Qualsevol {STRING}
+STR_BADGE_FILTER_IS_LABEL                                       :{STRING} és {STRING}

src/lang/finnish.txt

@@ -5001,6 +5001,7 @@ STR_ERROR_FLAT_LAND_REQUIRED                                    :{WHITE}Tarvitaa
 STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION                        :{WHITE}Maa viettää väärään suuntaan.
 STR_ERROR_CAN_T_DO_THIS                                         :{WHITE}Ei onnistu...
 STR_ERROR_BUILDING_MUST_BE_DEMOLISHED                           :{WHITE}Rakennus täytyy purkaa ensin.
+STR_ERROR_BUILDING_IS_PROTECTED                                 :{WHITE}… rakennus on suojattu
 STR_ERROR_CAN_T_CLEAR_THIS_AREA                                 :{WHITE}Aluetta ei voi tyhjentää...
 STR_ERROR_SITE_UNSUITABLE                                       :{WHITE}... maasto on sopimaton
 STR_ERROR_ALREADY_BUILT                                         :{WHITE}... se on jo rakennettu

src/lang/greek.txt

@@ -5102,6 +5102,7 @@ STR_ERROR_FLAT_LAND_REQUIRED                                    :{WHITE}Απαι
 STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION                        :{WHITE}Το έδαφος έχει λάθος κλίση
 STR_ERROR_CAN_T_DO_THIS                                         :{WHITE}Αυτό δεν γίνεται...
 STR_ERROR_BUILDING_MUST_BE_DEMOLISHED                           :{WHITE}Το κτίριο πρέπει πρώτα να κατεδαφιστεί
+STR_ERROR_BUILDING_IS_PROTECTED                                 :{WHITE}... το κτίριο προστατεύεται
 STR_ERROR_CAN_T_CLEAR_THIS_AREA                                 :{WHITE}Είναι αδύνατο να καθαριστεί αυτή η περιοχή...
 STR_ERROR_SITE_UNSUITABLE                                       :{WHITE}... ακατάλληλη περιοχή
 STR_ERROR_ALREADY_BUILT                                         :{WHITE}... ήδη κατασκευασμένο

src/lang/hungarian.txt

@@ -330,6 +330,7 @@ STR_UNITS_YEARS                                                 :{NUM}{NBSP}év
 STR_UNITS_PERIODS                                               :{NUM}{NBSP}időszak
 
 STR_LIST_SEPARATOR                                              :,{SPACE}
+STR_TRUNCATION_ELLIPSIS                                         :...
 
 # Common window strings
 STR_LIST_FILTER_TITLE                                           :{BLACK}Szűrő kifejezés:

src/lang/polish.txt

@@ -5387,6 +5387,7 @@ STR_ERROR_FLAT_LAND_REQUIRED                                    :{WHITE}Wymagany
 STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION                        :{WHITE}Teren pochylony w złym kierunku
 STR_ERROR_CAN_T_DO_THIS                                         :{WHITE}Nie można tego zrobić...
 STR_ERROR_BUILDING_MUST_BE_DEMOLISHED                           :{WHITE}Należy najpierw zburzyć budynek
+STR_ERROR_BUILDING_IS_PROTECTED                                 :{WHITE}... budynek jest chroniony
 STR_ERROR_CAN_T_CLEAR_THIS_AREA                                 :{WHITE}Nie można wyczyścić terenu...
 STR_ERROR_SITE_UNSUITABLE                                       :{WHITE}... nieodpowiednie miejsce
 STR_ERROR_ALREADY_BUILT                                         :{WHITE}... już zbudowano

src/lang/portuguese.txt

@@ -647,7 +647,7 @@ STR_GRAPH_KEY_COMPANY_SELECTION_TOOLTIP                         :{BLACK}Alternar
 
 # Company league window
 STR_COMPANY_LEAGUE_TABLE_CAPTION                                :{WHITE}Classificação de Empresas
-STR_COMPANY_LEAGUE_COMPANY_NAME                                 :{ORANGE}{COMPANY} {BLACK}{COMPANY_NUM} '{STRING}'
+STR_COMPANY_LEAGUE_COMPANY_NAME                                 :{ORANGE}{COMPANY} {BLACK}{COMPANY_NUM} "{STRING}"
 STR_COMPANY_LEAGUE_COMPANY_RANK                                 :{YELLOW}#{NUM}
 STR_COMPANY_LEAGUE_PERFORMANCE_TITLE_ENGINEER                   :Engenheiro
 STR_COMPANY_LEAGUE_PERFORMANCE_TITLE_TRAFFIC_MANAGER            :Gestor de Tráfego
@@ -5002,6 +5002,7 @@ STR_ERROR_FLAT_LAND_REQUIRED                                    :{WHITE}É neces
 STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION                        :{WHITE}Terreno inclinado na direcção incorrecta
 STR_ERROR_CAN_T_DO_THIS                                         :{WHITE}Não é possível fazer isto...
 STR_ERROR_BUILDING_MUST_BE_DEMOLISHED                           :{WHITE}O edifício deve ser demolido primeiro
+STR_ERROR_BUILDING_IS_PROTECTED                                 :{WHITE}... o edifício está protegido
 STR_ERROR_CAN_T_CLEAR_THIS_AREA                                 :{WHITE}Não é possível limpar esta área...
 STR_ERROR_SITE_UNSUITABLE                                       :{WHITE}... sítio inadequado
 STR_ERROR_ALREADY_BUILT                                         :{WHITE}... já está construído

src/lang/russian.txt

@@ -5188,6 +5188,7 @@ STR_ERROR_FLAT_LAND_REQUIRED                                    :{WHITE}Необ
 STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION                        :{WHITE}Неверный уклон земли
 STR_ERROR_CAN_T_DO_THIS                                         :{WHITE}Это невозможно...
 STR_ERROR_BUILDING_MUST_BE_DEMOLISHED                           :{WHITE}Сначала снесите здания
+STR_ERROR_BUILDING_IS_PROTECTED                                 :{WHITE}... это здание защищено от изменений
 STR_ERROR_CAN_T_CLEAR_THIS_AREA                                 :{WHITE}Невозможно расчистить данный участок...
 STR_ERROR_SITE_UNSUITABLE                                       :{WHITE}... неподходящее место
 STR_ERROR_ALREADY_BUILT                                         :{WHITE}... уже построено

src/lang/traditional_chinese.txt

@@ -5001,6 +5001,7 @@ STR_ERROR_FLAT_LAND_REQUIRED                                    :{WHITE}需要
 STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION                        :{WHITE}地面斜坡方向不對
 STR_ERROR_CAN_T_DO_THIS                                         :{WHITE}不能執行以下動作...
 STR_ERROR_BUILDING_MUST_BE_DEMOLISHED                           :{WHITE}必須先摧毀建築物
+STR_ERROR_BUILDING_IS_PROTECTED                                 :{WHITE}……建築物受到保護
 STR_ERROR_CAN_T_CLEAR_THIS_AREA                                 :{WHITE}不能清除這個地段...
 STR_ERROR_SITE_UNSUITABLE                                       :{WHITE}... 地點不適合
 STR_ERROR_ALREADY_BUILT                                         :{WHITE}……經已建成

src/newgrf/newgrf_act0_stations.cpp

@@ -90,12 +90,12 @@ static ChangeInfoResult StationChangeInfo(uint first, uint last, int prop, ByteR
 
 						/* no relative bounding box support */
 						DrawTileSeqStruct &dtss = tmp_layout.emplace_back();
-						dtss.delta_x = delta_x;
-						dtss.delta_y = buf.ReadByte();
-						dtss.delta_z = buf.ReadByte();
-						dtss.size_x = buf.ReadByte();
-						dtss.size_y = buf.ReadByte();
-						dtss.size_z = buf.ReadByte();
+						dtss.origin.x = delta_x;
+						dtss.origin.y = buf.ReadByte();
+						dtss.origin.z = buf.ReadByte();
+						dtss.extent.x = buf.ReadByte();
+						dtss.extent.y = buf.ReadByte();
+						dtss.extent.z = buf.ReadByte();
 
 						ReadSpriteLayoutSprite(buf, false, true, false, GSF_STATIONS, &dtss.image);
 						/* On error, bail out immediately. Temporary GRF data was already freed */

src/newgrf/newgrf_act2.cpp

@@ -207,15 +207,15 @@ bool ReadSpriteLayout(ByteReader &buf, uint num_building_sprites, bool use_cur_s
 			return true;
 		}
 
-		seq->delta_x = buf.ReadByte();
-		seq->delta_y = buf.ReadByte();
+		seq->origin.x = buf.ReadByte();
+		seq->origin.y = buf.ReadByte();
 
-		if (!no_z_position) seq->delta_z = buf.ReadByte();
+		if (!no_z_position) seq->origin.z = buf.ReadByte();
 
 		if (seq->IsParentSprite()) {
-			seq->size_x = buf.ReadByte();
-			seq->size_y = buf.ReadByte();
-			seq->size_z = buf.ReadByte();
+			seq->extent.x = buf.ReadByte();
+			seq->extent.y = buf.ReadByte();
+			seq->extent.z = buf.ReadByte();
 		}
 
 		ReadSpriteLayoutRegisters(buf, flags, seq->IsParentSprite(), dts, i + 1);

src/newgrf_commons.cpp

@@ -609,7 +609,7 @@ SpriteLayoutProcessor::SpriteLayoutProcessor(const NewGRFSpriteLayout &raw_layou
 	 * Also include the groundsprite into the sequence for easier processing. */
 	DrawTileSeqStruct &copy = this->result_seq.emplace_back();
 	copy.image = this->raw_layout->ground;
-	copy.delta_z = static_cast<int8_t>(0x80);
+	copy.origin.z = static_cast<int8_t>(0x80);
 
 	this->result_seq.insert(this->result_seq.end(), this->raw_layout->seq.begin(), this->raw_layout->seq.end());
 
@@ -692,13 +692,13 @@ void SpriteLayoutProcessor::ProcessRegisters(const ResolverObject &object, uint8
 
 					if (result.IsParentSprite()) {
 						if (flags & TLF_BB_XY_OFFSET) {
-							result.delta_x += object.GetRegister(regs->delta.parent[0]);
-							result.delta_y += object.GetRegister(regs->delta.parent[1]);
+							result.origin.x += object.GetRegister(regs->delta.parent[0]);
+							result.origin.y += object.GetRegister(regs->delta.parent[1]);
 						}
-						if (flags & TLF_BB_Z_OFFSET) result.delta_z += object.GetRegister(regs->delta.parent[2]);
+						if (flags & TLF_BB_Z_OFFSET) result.origin.z += object.GetRegister(regs->delta.parent[2]);
 					} else {
-						if (flags & TLF_CHILD_X_OFFSET) result.delta_x += object.GetRegister(regs->delta.child[0]);
-						if (flags & TLF_CHILD_Y_OFFSET) result.delta_y += object.GetRegister(regs->delta.child[1]);
+						if (flags & TLF_CHILD_X_OFFSET) result.origin.x += object.GetRegister(regs->delta.child[0]);
+						if (flags & TLF_CHILD_Y_OFFSET) result.origin.y += object.GetRegister(regs->delta.child[1]);
 					}
 				}
 			}

src/object_cmd.cpp

@@ -476,13 +476,7 @@ static void DrawTile_Object(TileInfo *ti)
 
 		if (!IsInvisibilitySet(TO_STRUCTURES)) {
 			for (const DrawTileSeqStruct &dtss : dts->GetSequence()) {
-				AddSortableSpriteToDraw(
-					dtss.image.sprite, palette,
-					ti->x + dtss.delta_x, ti->y + dtss.delta_y,
-					dtss.size_x, dtss.size_y,
-					dtss.size_z, ti->z + dtss.delta_z,
-					IsTransparencySet(TO_STRUCTURES)
-				);
+				AddSortableSpriteToDraw(dtss.image.sprite, palette, *ti, dtss, IsTransparencySet(TO_STRUCTURES));
 			}
 		}
 	} else {

src/rail_cmd.cpp

@@ -1899,7 +1899,7 @@ static void DrawSingleSignal(TileIndex tile, const RailTypeInfo *rti, Track trac
 		sprite += type * 16 + variant * 64 + image * 2 + condition + (type > SIGTYPE_LAST_NOPBS ? 64 : 0);
 	}
 
-	AddSortableSpriteToDraw(sprite, PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE, GetSaveSlopeZ(x, y, track));
+	AddSortableSpriteToDraw(sprite, PAL_NONE, x, y, GetSaveSlopeZ(x, y, track), {{}, {1, 1, BB_HEIGHT_UNDER_BRIDGE}, {}});
 }
 
 static uint32_t _drawtile_track_palette;
@@ -1907,12 +1907,11 @@ static uint32_t _drawtile_track_palette;
 
 
 /** Offsets for drawing fences */
-struct FenceOffset {
-	Corner height_ref;  //!< Corner to use height offset from.
-	int x_offs;         //!< Bounding box X offset.
-	int y_offs;         //!< Bounding box Y offset.
-	int x_size;         //!< Bounding box X size.
-	int y_size;         //!< Bounding box Y size.
+struct FenceOffset : SpriteBounds {
+	Corner height_ref; ///< Corner to use height offset from.
+
+	constexpr FenceOffset(Corner height_ref, int8_t origin_x, int8_t origin_y, uint8_t extent_x, uint8_t extent_y) :
+		SpriteBounds({origin_x, origin_y, 0}, {extent_x, extent_y, 4}, {}), height_ref(height_ref) {}
 };
 
 /** Offsets for drawing fences */
@@ -1948,12 +1947,7 @@ static void DrawTrackFence(const TileInfo *ti, SpriteID base_image, uint num_spr
 	if (_fence_offsets[rfo].height_ref != CORNER_INVALID) {
 		z += GetSlopePixelZInCorner(RemoveHalftileSlope(ti->tileh), _fence_offsets[rfo].height_ref);
 	}
-	AddSortableSpriteToDraw(base_image + (rfo % num_sprites), _drawtile_track_palette,
-		ti->x + _fence_offsets[rfo].x_offs,
-		ti->y + _fence_offsets[rfo].y_offs,
-		_fence_offsets[rfo].x_size,
-		_fence_offsets[rfo].y_size,
-		4, z);
+	AddSortableSpriteToDraw(base_image + (rfo % num_sprites), _drawtile_track_palette, ti->x, ti->y, z, _fence_offsets[rfo]);
 }
 
 /**

src/road_cmd.cpp

@@ -1418,7 +1418,7 @@ void DrawRoadTypeCatenary(const TileInfo *ti, RoadType rt, RoadBits rb)
 	 * For tiles with OWNER_TOWN or OWNER_NONE, recolour CC to grey as a neutral colour. */
 	Owner owner = GetRoadOwner(ti->tile, GetRoadTramType(rt));
 	PaletteID pal = (owner == OWNER_NONE || owner == OWNER_TOWN ? GetColourPalette(COLOUR_GREY) : GetCompanyPalette(owner));
-	int z_wires = (ti->tileh == SLOPE_FLAT ? 0 : TILE_HEIGHT) + BB_HEIGHT_UNDER_BRIDGE;
+	uint8_t z_wires = (ti->tileh == SLOPE_FLAT ? 0 : TILE_HEIGHT) + BB_HEIGHT_UNDER_BRIDGE;
 	if (back != 0) {
 		/* The "back" sprite contains the west, north and east pillars.
 		 * We cut the sprite at 3/8 of the west/east edges to create 3 sprites.
@@ -1427,13 +1427,16 @@ void DrawRoadTypeCatenary(const TileInfo *ti, RoadType rt, RoadBits rb)
 		static const SubSprite west  = { -INF, -INF, -12, INF };
 		static const SubSprite north = {  -12, -INF,  12, INF };
 		static const SubSprite east  = {   12, -INF, INF, INF };
-		AddSortableSpriteToDraw(back, pal, ti->x, ti->y, 16,  1, z_wires, ti->z, IsTransparencySet(TO_CATENARY), 15,  0, GetSlopePixelZInCorner(ti->tileh, CORNER_W), &west);
-		AddSortableSpriteToDraw(back, pal, ti->x, ti->y,  1,  1, z_wires, ti->z, IsTransparencySet(TO_CATENARY),  0,  0, GetSlopePixelZInCorner(ti->tileh, CORNER_N), &north);
-		AddSortableSpriteToDraw(back, pal, ti->x, ti->y,  1, 16, z_wires, ti->z, IsTransparencySet(TO_CATENARY),  0, 15, GetSlopePixelZInCorner(ti->tileh, CORNER_E), &east);
+		int8_t west_z = GetSlopePixelZInCorner(ti->tileh, CORNER_W);
+		int8_t north_z = GetSlopePixelZInCorner(ti->tileh, CORNER_N);
+		int8_t east_z = GetSlopePixelZInCorner(ti->tileh, CORNER_E);
+		AddSortableSpriteToDraw(back, pal, *ti, {{15, 0, west_z}, {1, 1, z_wires}, {-15, 0, static_cast<int8_t>(-west_z)}}, IsTransparencySet(TO_CATENARY), &west);
+		AddSortableSpriteToDraw(back, pal, *ti, {{0, 0, north_z}, {1, 1, z_wires}, {0, 0, static_cast<int8_t>(-north_z)}}, IsTransparencySet(TO_CATENARY), &north);
+		AddSortableSpriteToDraw(back, pal, *ti, {{0, 15, east_z}, {1, 1, z_wires}, {0, -15, static_cast<int8_t>(-east_z)}}, IsTransparencySet(TO_CATENARY), &east);
 	}
 	if (front != 0) {
 		/* Draw the "front" sprite (containing south pillar and wires) at a Z height that is both above the vehicles and above the "back" pillars. */
-		AddSortableSpriteToDraw(front, pal, ti->x, ti->y, 16, 16, z_wires + 1, ti->z, IsTransparencySet(TO_CATENARY), 0, 0, z_wires);
+		AddSortableSpriteToDraw(front, pal, *ti, {{0, 0, static_cast<int8_t>(z_wires)}, {TILE_SIZE, TILE_SIZE, 1}, {0, 0, static_cast<int8_t>(-z_wires)}}, IsTransparencySet(TO_CATENARY));
 	}
 }
 
@@ -1487,13 +1490,13 @@ void DrawRoadCatenary(const TileInfo *ti)
  * @param h   the height of the sprite to draw
  * @param transparent  whether the sprite should be transparent (used for roadside trees)
  */
-static void DrawRoadDetail(SpriteID img, const TileInfo *ti, int dx, int dy, int h, bool transparent)
+static void DrawRoadDetail(SpriteID img, const TileInfo *ti, int8_t dx, int8_t dy, uint8_t h, bool transparent)
 {
 	int x = ti->x | dx;
 	int y = ti->y | dy;
 	int z = ti->z;
 	if (ti->tileh != SLOPE_FLAT) z = GetSlopePixelZ(x, y);
-	AddSortableSpriteToDraw(img, PAL_NONE, x, y, 2, 2, h, z, transparent);
+	AddSortableSpriteToDraw(img, PAL_NONE, ti->x, ti->y, z, {{dx, dy, 0}, {2, 2, h}, {}}, transparent);
 }
 
 /**

src/roadveh_cmd.cpp

@@ -405,29 +405,56 @@ void RoadVehicle::MarkDirty()
 
 void RoadVehicle::UpdateDeltaXY()
 {
-	static const int8_t _delta_xy_table[8][10] = {
-		/* y_extent, x_extent, y_offs, x_offs, y_bb_offs, x_bb_offs, y_extent_shorten, x_extent_shorten, y_bb_offs_shorten, x_bb_offs_shorten */
-		{3, 3, -1, -1,  0,  0, -1, -1, -1, -1}, // N
-		{3, 7, -1, -3,  0, -1,  0, -1,  0,  0}, // NE
-		{3, 3, -1, -1,  0,  0,  1, -1,  1, -1}, // E
-		{7, 3, -3, -1, -1,  0,  0,  0,  1,  0}, // SE
-		{3, 3, -1, -1,  0,  0,  1,  1,  1,  1}, // S
-		{3, 7, -1, -3,  0, -1,  0,  0,  0,  1}, // SW
-		{3, 3, -1, -1,  0,  0, -1,  1, -1,  1}, // W
-		{7, 3, -3, -1, -1,  0, -1,  0,  0,  0}, // NW
-	};
+	/* Set common defaults. */
+	this->bounds = {{-1, -1, 0}, {3, 3, 6}, {}};
 
-	int shorten = VEHICLE_LENGTH - this->gcache.cached_veh_length;
-	if (!IsDiagonalDirection(this->direction)) shorten >>= 1;
+	if (!IsDiagonalDirection(this->direction)) {
+		static const Point _sign_table[] = {
+			/* x, y */
+			{-1, -1}, // DIR_N
+			{-1,  1}, // DIR_E
+			{ 1,  1}, // DIR_S
+			{ 1, -1}, // DIR_W
+		};
 
-	const int8_t *bb = _delta_xy_table[this->direction];
-	this->x_bb_offs     = bb[5] + bb[9] * shorten;
-	this->y_bb_offs     = bb[4] + bb[8] * shorten;;
-	this->x_offs        = bb[3];
-	this->y_offs        = bb[2];
-	this->x_extent      = bb[1] + bb[7] * shorten;
-	this->y_extent      = bb[0] + bb[6] * shorten;
-	this->z_extent      = 6;
+		int half_shorten = (VEHICLE_LENGTH - this->gcache.cached_veh_length) / 2;
+
+		/* For all straight directions, move the bound box to the centre of the vehicle, but keep the size. */
+		this->bounds.offset.x -= half_shorten * _sign_table[DirToDiagDir(this->direction)].x;
+		this->bounds.offset.y -= half_shorten * _sign_table[DirToDiagDir(this->direction)].y;
+	} else {
+		/* Unlike trains, road vehicles do not have their offsets moved to the centre. */
+		switch (this->direction) {
+				/* Shorten southern corner of the bounding box according the vehicle length. */
+			case DIR_NE:
+				this->bounds.origin.x = -3;
+				this->bounds.extent.x = this->gcache.cached_veh_length;
+				this->bounds.offset.x = 1;
+				break;
+
+			case DIR_NW:
+				this->bounds.origin.y = -3;
+				this->bounds.extent.y = this->gcache.cached_veh_length;
+				this->bounds.offset.y = 1;
+				break;
+
+				/* Move northern corner of the bounding box down according to vehicle length. */
+			case DIR_SW:
+				this->bounds.origin.x = -3 + (VEHICLE_LENGTH - this->gcache.cached_veh_length);
+				this->bounds.extent.x = this->gcache.cached_veh_length;
+				this->bounds.offset.x = 1 - (VEHICLE_LENGTH - this->gcache.cached_veh_length);
+				break;
+
+			case DIR_SE:
+				this->bounds.origin.y = -3 + (VEHICLE_LENGTH - this->gcache.cached_veh_length);
+				this->bounds.extent.y = this->gcache.cached_veh_length;
+				this->bounds.offset.y = 1 - (VEHICLE_LENGTH - this->gcache.cached_veh_length);
+				break;
+
+			default:
+				NOT_REACHED();
+		}
+	}
 }
 
 /**

src/ship_cmd.cpp

@@ -330,32 +330,26 @@ TileIndex Ship::GetOrderStationLocation(StationID station)
 
 void Ship::UpdateDeltaXY()
 {
-	static const int8_t _delta_xy_table[8][4] = {
-		/* y_extent, x_extent, y_offs, x_offs */
-		{ 6,  6,  -3,  -3}, // N
-		{ 6, 32,  -3, -16}, // NE
-		{ 6,  6,  -3,  -3}, // E
-		{32,  6, -16,  -3}, // SE
-		{ 6,  6,  -3,  -3}, // S
-		{ 6, 32,  -3, -16}, // SW
-		{ 6,  6,  -3,  -3}, // W
-		{32,  6, -16,  -3}, // NW
+	static constexpr SpriteBounds ship_bounds[DIR_END] = {
+		{{ -3,  -3, 0}, { 6,  6, 6}, {}}, // N
+		{{-16,  -3, 0}, {32,  6, 6}, {}}, // NE
+		{{ -3,  -3, 0}, { 6,  6, 6}, {}}, // E
+		{{ -3, -16, 0}, { 6, 32, 6}, {}}, // SE
+		{{ -3,  -3, 0}, { 6,  6, 6}, {}}, // S
+		{{-16,  -3, 0}, {32,  6, 6}, {}}, // SW
+		{{ -3,  -3, 0}, { 6,  6, 6}, {}}, // W
+		{{ -3, -16, 0}, { 6, 32, 6}, {}}, // NW
 	};
 
-	const int8_t *bb = _delta_xy_table[this->rotation];
-	this->x_offs        = bb[3];
-	this->y_offs        = bb[2];
-	this->x_extent      = bb[1];
-	this->y_extent      = bb[0];
-	this->z_extent      = 6;
+	this->bounds = ship_bounds[this->rotation];
 
 	if (this->direction != this->rotation) {
 		/* If we are rotating, then it is possible the ship was moved to its next position. In that
 		 * case, because we are still showing the old direction, the ship will appear to glitch sideways
 		 * slightly. We can work around this by applying an additional offset to make the ship appear
 		 * where it was before it moved. */
-		this->x_offs -= this->x_pos - this->rotation_x_pos;
-		this->y_offs -= this->y_pos - this->rotation_y_pos;
+		this->bounds.origin.x -= this->x_pos - this->rotation_x_pos;
+		this->bounds.origin.y -= this->y_pos - this->rotation_y_pos;
 	}
 }
 

src/sprite.cpp

@@ -54,16 +54,11 @@ void DrawCommonTileSeq(const TileInfo *ti, const DrawTileSprites *dts, Transpare
 
 		if (dtss.IsParentSprite()) {
 			parent_sprite_encountered = true;
-			AddSortableSpriteToDraw(
-				image, pal,
-				ti->x + dtss.delta_x, ti->y + dtss.delta_y,
-				dtss.size_x, dtss.size_y,
-				dtss.size_z, ti->z + dtss.delta_z,
-				!HasBit(image, SPRITE_MODIFIER_OPAQUE) && IsTransparencySet(to)
+			AddSortableSpriteToDraw(image, pal, *ti, dtss, !HasBit(image, SPRITE_MODIFIER_OPAQUE) && IsTransparencySet(to)
 			);
 		} else {
-			int offs_x = child_offset_is_unsigned ? static_cast<uint8_t>(dtss.delta_x) : dtss.delta_x;
-			int offs_y = child_offset_is_unsigned ? static_cast<uint8_t>(dtss.delta_y) : dtss.delta_y;
+			int offs_x = child_offset_is_unsigned ? static_cast<uint8_t>(dtss.origin.x) : dtss.origin.x;
+			int offs_y = child_offset_is_unsigned ? static_cast<uint8_t>(dtss.origin.y) : dtss.origin.y;
 			bool transparent = !HasBit(image, SPRITE_MODIFIER_OPAQUE) && IsTransparencySet(to);
 			if (parent_sprite_encountered) {
 				AddChildSpriteScreen(image, pal, offs_x, offs_y, transparent);
@@ -114,15 +109,15 @@ void DrawCommonTileSeqInGUI(int x, int y, const DrawTileSprites *dts, int32_t or
 		pal = SpriteLayoutPaletteTransform(image, pal, default_palette);
 
 		if (dtss.IsParentSprite()) {
-			Point pt = RemapCoords(dtss.delta_x, dtss.delta_y, dtss.delta_z);
+			Point pt = RemapCoords(dtss.origin.x, dtss.origin.y, dtss.origin.z);
 			DrawSprite(image, pal, x + UnScaleGUI(pt.x), y + UnScaleGUI(pt.y));
 
 			const Sprite *spr = GetSprite(image & SPRITE_MASK, SpriteType::Normal);
 			child_offset.x = UnScaleGUI(pt.x + spr->x_offs);
 			child_offset.y = UnScaleGUI(pt.y + spr->y_offs);
 		} else {
-			int offs_x = child_offset_is_unsigned ? static_cast<uint8_t>(dtss.delta_x) : dtss.delta_x;
-			int offs_y = child_offset_is_unsigned ? static_cast<uint8_t>(dtss.delta_y) : dtss.delta_y;
+			int offs_x = child_offset_is_unsigned ? static_cast<uint8_t>(dtss.origin.x) : dtss.origin.x;
+			int offs_y = child_offset_is_unsigned ? static_cast<uint8_t>(dtss.origin.y) : dtss.origin.y;
 			DrawSprite(image, pal, x + child_offset.x + ScaleSpriteTrad(offs_x), y + child_offset.y + ScaleSpriteTrad(offs_y));
 		}
 	}

src/sprite.h

@@ -10,28 +10,33 @@
 #ifndef SPRITE_H
 #define SPRITE_H
 
+#include "core/geometry_type.hpp"
 #include "transparency.h"
 
 #include "table/sprites.h"
 
+struct SpriteBounds {
+	PointXyz<int8_t> origin; ///< Position of northern corner within tile.
+	PointXyz<uint8_t> extent; ///< Size of bounding box.
+	PointXyz<int8_t> offset; ///< Relative position of sprite from bounding box.
+};
+
 /* The following describes bunch of sprites to be drawn together in a single 3D
  * bounding box. Used especially for various multi-sprite buildings (like
  * depots or stations): */
 
 /** A tile child sprite and palette to draw for stations etc, with 3D bounding box */
-struct DrawTileSeqStruct {
-	int8_t delta_x = 0;
-	int8_t delta_y = 0;
-	int8_t delta_z = 0; ///< \c 0x80 identifies child sprites
-	uint8_t size_x = 0;
-	uint8_t size_y = 0;
-	uint8_t size_z = 0;
-	PalSpriteID image{};
+struct DrawTileSeqStruct : SpriteBounds {
+	PalSpriteID image;
+
+	constexpr DrawTileSeqStruct() = default;
+	constexpr DrawTileSeqStruct(int8_t origin_x, int8_t origin_y, int8_t origin_z, uint8_t extent_x, uint8_t extent_y, uint8_t extent_z, PalSpriteID image) :
+		SpriteBounds({origin_x, origin_y, origin_z}, {extent_x, extent_y, extent_z}, {}), image(image) {}
 
 	/** Check whether this is a parent sprite with a boundingbox. */
-	bool IsParentSprite() const
+	inline bool IsParentSprite() const
 	{
-		return (uint8_t)this->delta_z != 0x80;
+		return static_cast<uint8_t>(this->origin.z) != 0x80;
 	}
 };
 
@@ -69,14 +74,9 @@ struct DrawTileSpriteSpan : DrawTileSprites {
  * This structure is the same for both Industries and Houses.
  * Buildings here reference a general type of construction
  */
-struct DrawBuildingsTileStruct {
+struct DrawBuildingsTileStruct : SpriteBounds {
 	PalSpriteID ground;
 	PalSpriteID building;
-	uint8_t subtile_x;
-	uint8_t subtile_y;
-	uint8_t width;
-	uint8_t height;
-	uint8_t dz;
 	uint8_t draw_proc;  // this allows to specify a special drawing procedure.
 };
 

src/station_cmd.cpp

@@ -3184,7 +3184,7 @@ static void DrawTile_Station(TileInfo *ti)
 					7, 8, 9     // SLOPE_NE, SLOPE_ENW, SLOPE_SEN
 				};
 
-				AddSortableSpriteToDraw(image + foundation_parts[ti->tileh], PAL_NONE, ti->x, ti->y, 16, 16, 7, ti->z);
+				AddSortableSpriteToDraw(image + foundation_parts[ti->tileh], PAL_NONE, *ti, {{}, {TILE_SIZE, TILE_SIZE, 7}, {}});
 			} else {
 				/* Draw simple foundations, built up from 8 possible foundation sprites. */
 
@@ -3218,7 +3218,7 @@ static void DrawTile_Station(TileInfo *ti)
 				StartSpriteCombine();
 				for (int i = 0; i < 8; i++) {
 					if (HasBit(parts, i)) {
-						AddSortableSpriteToDraw(image + i, PAL_NONE, ti->x, ti->y, 16, 16, 7, ti->z);
+						AddSortableSpriteToDraw(image + i, PAL_NONE, *ti, {{}, {TILE_SIZE, TILE_SIZE, 7}, {}});
 					}
 				}
 				EndSpriteCombine();

src/table/elrail_data.h

@@ -313,14 +313,12 @@ enum WireSpriteOffset : uint8_t {
 	WSO_ENTRANCE_SE,
 };
 
-struct SortableSpriteStruct {
+struct SortableSpriteStruct : SpriteBounds {
 	uint8_t image_offset;
-	int8_t x_offset;
-	int8_t y_offset;
-	int8_t x_size;
-	int8_t y_size;
-	int8_t z_size;
-	int8_t z_offset;
+
+	constexpr SortableSpriteStruct(uint8_t image_offset, const SpriteBounds &bounds) : SpriteBounds(bounds), image_offset(image_offset) {}
+	constexpr SortableSpriteStruct(uint8_t image_offset, int8_t x_offset, int8_t y_offset, uint8_t x_size, uint8_t y_size, uint8_t z_size, int8_t z_offset) :
+		SpriteBounds({x_offset, y_offset, z_offset}, {x_size, y_size, z_size}, {}), image_offset(image_offset) {}
 };
 
 /** Distance between wire and rail */
@@ -398,11 +396,17 @@ static const SortableSpriteStruct _rail_catenary_sprite_data_depot[] = {
 	{ WSO_ENTRANCE_NW,   7,  0,  1, 15,  1, ELRAIL_ELEVATION }  //! Wire for NW depot exit
 };
 
+/**
+ * In tunnelheads, the bounding box for wires covers nearly the full tile, and is lowered a bit.
+ * ELRAIL_TUNNEL_OFFSET is the difference between visual position and bounding box.
+ */
+static const int8_t ELRAIL_TUNNEL_OFFSET = ELRAIL_ELEVATION - BB_Z_SEPARATOR;
+
 static const SortableSpriteStruct _rail_catenary_sprite_data_tunnel[] = {
-	{ WSO_ENTRANCE_SW,   0,  7, 15,  1,  1, ELRAIL_ELEVATION }, //! Wire for NE tunnel (SW facing exit)
-	{ WSO_ENTRANCE_NW,   7,  0,  1, 15,  1, ELRAIL_ELEVATION }, //! Wire for SE tunnel (NW facing exit)
-	{ WSO_ENTRANCE_NE,   0,  7, 15,  1,  1, ELRAIL_ELEVATION }, //! Wire for SW tunnel (NE facing exit)
-	{ WSO_ENTRANCE_SE,   7,  0,  1, 15,  1, ELRAIL_ELEVATION }  //! Wire for NW tunnel (SE facing exit)
+	{ WSO_ENTRANCE_SW, {{0, 0, BB_Z_SEPARATOR}, {16, 15, 1}, {0, 7, ELRAIL_TUNNEL_OFFSET}} }, //! Wire for NE tunnel (SW facing exit)
+	{ WSO_ENTRANCE_NW, {{0, 0, BB_Z_SEPARATOR}, {15, 16, 1}, {7, 0, ELRAIL_TUNNEL_OFFSET}} }, //! Wire for SE tunnel (NW facing exit)
+	{ WSO_ENTRANCE_NE, {{0, 0, BB_Z_SEPARATOR}, {16, 15, 1}, {0, 7, ELRAIL_TUNNEL_OFFSET}} }, //! Wire for SW tunnel (NE facing exit)
+	{ WSO_ENTRANCE_SE, {{0, 0, BB_Z_SEPARATOR}, {15, 16, 1}, {7, 0, ELRAIL_TUNNEL_OFFSET}} }  //! Wire for NW tunnel (SE facing exit)
 };
 
 

src/table/industry_land.h

@@ -37,15 +37,15 @@ struct DrawIndustryCoordinates {
  * @param p1 palette ID of ground sprite
  * @param s2 sprite ID of building sprite
  * @param p2 palette ID of building sprite
- * @param sx coordinate x of the sprite
- * @param sy coordinate y of the sprite
- * @param w width of the sprite
- * @param h height of the sprite
- * @param dz virtual height of the sprite
+ * @param dx The x-position of the sprite within the tile.
+ * @param dy the y-position of the sprite within the tile.
+ * @param sx the x-extent of the sprite.
+ * @param sy the y-extent of the sprite.
+ * @param sz the z-extent of the sprite.
  * @param p this allows to specify a special drawing procedure.
  * @see DrawBuildingsTileStruct
  */
-#define M(s1, p1, s2, p2, sx, sy, w, h, dz, p) { { s1, p1 }, { s2, p2 }, sx, sy, w, h, dz, p }
+#define M(s1, p1, s2, p2, dx, dy, sx, sy, sz, p) { {{dx, dy, 0}, {sx, sy, sz}, {}}, { s1, p1 }, { s2, p2 }, p}
 
 /** Structure for industry tiles drawing */
 static const DrawBuildingsTileStruct _industry_draw_tile_data[NEW_INDUSTRYTILEOFFSET * 4] = {

src/table/town_land.h

@@ -13,15 +13,15 @@
  * @param p1 The first sprite's palette of the building, mostly the ground sprite
  * @param s2 The second sprite of the building.
  * @param p2 The second sprite's palette of the building.
- * @param sx The x-position of the sprite within the tile
- * @param sy the y-position of the sprite within the tile
- * @param w the width of the sprite
- * @param h the height of the sprite
- * @param dz the virtual height of the sprite
+ * @param dx The x-position of the sprite within the tile.
+ * @param dy the y-position of the sprite within the tile.
+ * @param sx the x-extent of the sprite.
+ * @param sy the y-extent of the sprite.
+ * @param sz the z-extent of the sprite.
  * @param p set to 1 if a lift is present ()
  * @see DrawBuildingsTileStruct
  */
-#define M(s1, p1, s2, p2, sx, sy, w, h, dz, p) { { s1, p1 }, { s2, p2 }, sx, sy, w, h, dz, p}
+#define M(s1, p1, s2, p2, dx, dy, sx, sy, sz, p) { {{dx, dy, 0}, {sx, sy, sz}, {}}, { s1, p1 }, { s2, p2 }, p}
 
 /** structure of houses graphics*/
 static const DrawBuildingsTileStruct _town_draw_tile_data[] = {

src/tile_cmd.h

@@ -10,6 +10,7 @@
 #ifndef TILE_CMD_H
 #define TILE_CMD_H
 
+#include "core/geometry_type.hpp"
 #include "command_type.h"
 #include "vehicle_type.h"
 #include "cargo_type.h"
@@ -26,12 +27,9 @@ enum class VehicleEnterTileState : uint8_t {
 using VehicleEnterTileStates = EnumBitSet<VehicleEnterTileState, uint8_t>;
 
 /** Tile information, used while rendering the tile */
-struct TileInfo {
-	int x;          ///< X position of the tile in unit coordinates
-	int y;          ///< Y position of the tile in unit coordinates
+struct TileInfo : PointXyz<int> {
 	Slope tileh;    ///< Slope of the tile
 	TileIndex tile; ///< Tile index
-	int z;          ///< Height
 };
 
 /** Tile description for the 'land area information' tool */

src/tile_type.h

@@ -12,29 +12,29 @@
 
 #include "core/strong_typedef_type.hpp"
 
-static const uint TILE_SIZE           = 16;                    ///< Tile size in world coordinates.
-static const uint TILE_UNIT_MASK      = TILE_SIZE - 1;         ///< For masking in/out the inner-tile world coordinate units.
-static const uint TILE_PIXELS         = 32;                    ///< Pixel distance between tile columns/rows in #ZOOM_BASE.
-static const uint TILE_HEIGHT         =  8;                    ///< Height of a height level in world coordinate AND in pixels in #ZOOM_BASE.
+static constexpr uint TILE_SIZE           = 16;                    ///< Tile size in world coordinates.
+static constexpr uint TILE_UNIT_MASK      = TILE_SIZE - 1;         ///< For masking in/out the inner-tile world coordinate units.
+static constexpr uint TILE_PIXELS         = 32;                    ///< Pixel distance between tile columns/rows in #ZOOM_BASE.
+static constexpr uint TILE_HEIGHT         =  8;                    ///< Height of a height level in world coordinate AND in pixels in #ZOOM_BASE.
 
-static const uint MAX_BUILDING_PIXELS = 200;                   ///< Maximum height of a building in pixels in #ZOOM_BASE. (Also applies to "bridge buildings" on the bridge floor.)
-static const int MAX_VEHICLE_PIXEL_X  = 192;                   ///< Maximum width of a vehicle in pixels in #ZOOM_BASE.
-static const int MAX_VEHICLE_PIXEL_Y  = 96;                    ///< Maximum height of a vehicle in pixels in #ZOOM_BASE.
+static constexpr uint MAX_BUILDING_PIXELS = 200;                   ///< Maximum height of a building in pixels in #ZOOM_BASE. (Also applies to "bridge buildings" on the bridge floor.)
+static constexpr int MAX_VEHICLE_PIXEL_X  = 192;                   ///< Maximum width of a vehicle in pixels in #ZOOM_BASE.
+static constexpr int MAX_VEHICLE_PIXEL_Y  = 96;                    ///< Maximum height of a vehicle in pixels in #ZOOM_BASE.
 
-static const uint MAX_TILE_HEIGHT     = 255;                   ///< Maximum allowed tile height
+static constexpr uint MAX_TILE_HEIGHT     = 255;                   ///< Maximum allowed tile height
 
-static const uint MIN_HEIGHTMAP_HEIGHT = 1;                    ///< Lowest possible peak value for heightmap creation
-static const uint MIN_CUSTOM_TERRAIN_TYPE = 1;                 ///< Lowest possible peak value for world generation
+static constexpr uint MIN_HEIGHTMAP_HEIGHT = 1;                    ///< Lowest possible peak value for heightmap creation
+static constexpr uint MIN_CUSTOM_TERRAIN_TYPE = 1;                 ///< Lowest possible peak value for world generation
 
-static const uint MIN_MAP_HEIGHT_LIMIT = 15;                   ///< Lower bound of maximum allowed heightlevel (in the construction settings)
-static const uint MAX_MAP_HEIGHT_LIMIT = MAX_TILE_HEIGHT;      ///< Upper bound of maximum allowed heightlevel (in the construction settings)
+static constexpr uint MIN_MAP_HEIGHT_LIMIT = 15;                   ///< Lower bound of maximum allowed heightlevel (in the construction settings)
+static constexpr uint MAX_MAP_HEIGHT_LIMIT = MAX_TILE_HEIGHT;      ///< Upper bound of maximum allowed heightlevel (in the construction settings)
 
-static const uint MIN_SNOWLINE_HEIGHT = 2;                     ///< Minimum snowline height
-static const uint DEF_SNOWLINE_HEIGHT = 10;                    ///< Default snowline height
-static const uint MAX_SNOWLINE_HEIGHT = (MAX_TILE_HEIGHT - 2); ///< Maximum allowed snowline height
+static constexpr uint MIN_SNOWLINE_HEIGHT = 2;                     ///< Minimum snowline height
+static constexpr uint DEF_SNOWLINE_HEIGHT = 10;                    ///< Default snowline height
+static constexpr uint MAX_SNOWLINE_HEIGHT = (MAX_TILE_HEIGHT - 2); ///< Maximum allowed snowline height
 
-static const uint DEF_SNOW_COVERAGE = 40;                      ///< Default snow coverage.
-static const uint DEF_DESERT_COVERAGE = 50;                    ///< Default desert coverage.
+static constexpr uint DEF_SNOW_COVERAGE = 40;                      ///< Default snow coverage.
+static constexpr uint DEF_DESERT_COVERAGE = 50;                    ///< Default desert coverage.
 
 
 /**

src/town_cmd.cpp

@@ -284,15 +284,7 @@ static void DrawTile_Town(TileInfo *ti)
 	/* Add a house on top of the ground? */
 	SpriteID image = dcts->building.sprite;
 	if (image != 0) {
-		AddSortableSpriteToDraw(image, dcts->building.pal,
-			ti->x + dcts->subtile_x,
-			ti->y + dcts->subtile_y,
-			dcts->width,
-			dcts->height,
-			dcts->dz,
-			ti->z,
-			IsTransparencySet(TO_HOUSES)
-		);
+		AddSortableSpriteToDraw(image, dcts->building.pal, *ti, *dcts, IsTransparencySet(TO_HOUSES));
 
 		if (IsTransparencySet(TO_HOUSES)) return;
 	}

src/town_gui.cpp

@@ -1376,7 +1376,7 @@ void DrawHouseInGUI(int x, int y, HouseID house_id, int view)
 
 		/* Add a house on top of the ground? */
 		if (dcts.building.sprite != 0) {
-			Point pt = RemapCoords(dcts.subtile_x, dcts.subtile_y, 0);
+			Point pt = RemapCoords(dcts.origin.x, dcts.origin.y, dcts.origin.z);
 			DrawSprite(dcts.building.sprite, dcts.building.pal, x + UnScaleGUI(pt.x), y + UnScaleGUI(pt.y));
 		}
 	};

src/train_cmd.cpp

@@ -1491,13 +1491,7 @@ CommandCost CmdSellRailWagon(DoCommandFlags flags, Vehicle *t, bool sell_chain,
 void Train::UpdateDeltaXY()
 {
 	/* Set common defaults. */
-	this->x_offs    = -1;
-	this->y_offs    = -1;
-	this->x_extent  =  3;
-	this->y_extent  =  3;
-	this->z_extent  =  6;
-	this->x_bb_offs =  0;
-	this->y_bb_offs =  0;
+	this->bounds = {{-1, -1, 0}, {3, 3, 6}, {}};
 
 	/* Set if flipped and engine is NOT flagged with custom flip handling. */
 	int flipped = this->flags.Test(VehicleRailFlag::Flipped) && !EngInfo(this->engine_type)->misc_flags.Test(EngineMiscFlag::RailFlips);
@@ -1508,50 +1502,47 @@ void Train::UpdateDeltaXY()
 	if (flipped) dir = ReverseDir(dir);
 
 	if (!IsDiagonalDirection(dir)) {
-		static const int _sign_table[] =
-		{
+		static const Point _sign_table[] = {
 			/* x, y */
-			-1, -1, // DIR_N
-			-1,  1, // DIR_E
-			 1,  1, // DIR_S
-			 1, -1, // DIR_W
+			{-1, -1}, // DIR_N
+			{-1,  1}, // DIR_E
+			{ 1,  1}, // DIR_S
+			{ 1, -1}, // DIR_W
 		};
 
 		int half_shorten = (VEHICLE_LENGTH - this->gcache.cached_veh_length + flipped) / 2;
 
 		/* For all straight directions, move the bound box to the centre of the vehicle, but keep the size. */
-		this->x_offs -= half_shorten * _sign_table[dir];
-		this->y_offs -= half_shorten * _sign_table[dir + 1];
-		this->x_extent += this->x_bb_offs = half_shorten * _sign_table[dir];
-		this->y_extent += this->y_bb_offs = half_shorten * _sign_table[dir + 1];
+		this->bounds.offset.x -= half_shorten * _sign_table[DirToDiagDir(dir)].x;
+		this->bounds.offset.y -= half_shorten * _sign_table[DirToDiagDir(dir)].y;
 	} else {
 		switch (dir) {
 				/* Shorten southern corner of the bounding box according the vehicle length
 				 * and center the bounding box on the vehicle. */
 			case DIR_NE:
-				this->x_offs    = 1 - (this->gcache.cached_veh_length + 1) / 2 + flip_offs;
-				this->x_extent  = this->gcache.cached_veh_length - 1;
-				this->x_bb_offs = -1;
+				this->bounds.origin.x = -(this->gcache.cached_veh_length + 1) / 2 + flip_offs;
+				this->bounds.extent.x = this->gcache.cached_veh_length;
+				this->bounds.offset.x = 1;
 				break;
 
 			case DIR_NW:
-				this->y_offs    = 1 - (this->gcache.cached_veh_length + 1) / 2 + flip_offs;
-				this->y_extent  = this->gcache.cached_veh_length - 1;
-				this->y_bb_offs = -1;
+				this->bounds.origin.y = -(this->gcache.cached_veh_length + 1) / 2 + flip_offs;
+				this->bounds.extent.y = this->gcache.cached_veh_length;
+				this->bounds.offset.y = 1;
 				break;
 
 				/* Move northern corner of the bounding box down according to vehicle length
 				 * and center the bounding box on the vehicle. */
 			case DIR_SW:
-				this->x_offs    = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH - flip_offs;
-				this->x_extent  = VEHICLE_LENGTH - 1;
-				this->x_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
+				this->bounds.origin.x = -(this->gcache.cached_veh_length) / 2 - flip_offs;
+				this->bounds.extent.x = this->gcache.cached_veh_length;
+				this->bounds.offset.x = 1 - (VEHICLE_LENGTH - this->gcache.cached_veh_length);
 				break;
 
 			case DIR_SE:
-				this->y_offs    = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH - flip_offs;
-				this->y_extent  = VEHICLE_LENGTH - 1;
-				this->y_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
+				this->bounds.origin.y = -(this->gcache.cached_veh_length) / 2 - flip_offs;
+				this->bounds.extent.y = this->gcache.cached_veh_length;
+				this->bounds.offset.y = 1 - (VEHICLE_LENGTH - this->gcache.cached_veh_length);
 				break;
 
 			default:

src/tree_cmd.cpp

@@ -635,7 +635,7 @@ CommandCost CmdPlantTree(DoCommandFlags flags, TileIndex tile, TileIndex start_t
 }
 
 struct TreeListEnt : PalSpriteID {
-	uint8_t x, y;
+	int8_t x, y;
 };
 
 static void DrawTile_Trees(TileInfo *ti)
@@ -699,7 +699,8 @@ static void DrawTile_Trees(TileInfo *ti)
 			}
 		}
 
-		AddSortableSpriteToDraw(te[mi].sprite, te[mi].pal, ti->x + te[mi].x, ti->y + te[mi].y, 16 - te[mi].x, 16 - te[mi].y, 0x30, z, IsTransparencySet(TO_TREES), -te[mi].x, -te[mi].y);
+		SpriteBounds bounds{{}, {TILE_SIZE, TILE_SIZE, 48}, {te[mi].x, te[mi].y, 0}};
+		AddSortableSpriteToDraw(te[mi].sprite, te[mi].pal, ti->x, ti->y, z, bounds, IsTransparencySet(TO_TREES));
 
 		/* replace the removed one with the last one */
 		te[mi] = te[trees - 1];

src/tunnelbridge_cmd.cpp

@@ -1017,10 +1017,10 @@ static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlags flags)
  * @param h         Bounding box size in Y direction
  * @param subsprite Optional subsprite for drawing halfpillars
  */
-static inline void DrawPillar(const PalSpriteID *psid, int x, int y, int z, int w, int h, const SubSprite *subsprite)
+static inline void DrawPillar(const PalSpriteID *psid, int x, int y, int z, uint8_t w, uint8_t h, const SubSprite *subsprite)
 {
 	static const int PILLAR_Z_OFFSET = TILE_HEIGHT - BRIDGE_Z_START; ///< Start offset of pillar wrt. bridge (downwards)
-	AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, w, h, BB_HEIGHT_UNDER_BRIDGE - PILLAR_Z_OFFSET, z, IsTransparencySet(TO_BRIDGES), 0, 0, -PILLAR_Z_OFFSET, subsprite);
+	AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, z, {{0, 0, -PILLAR_Z_OFFSET}, {w, h, BB_HEIGHT_UNDER_BRIDGE}, {0, 0, PILLAR_Z_OFFSET}}, IsTransparencySet(TO_BRIDGES), subsprite);
 }
 
 /**
@@ -1194,18 +1194,20 @@ static void DrawBridgeRoadBits(TileIndex head_tile, int x, int y, int z, int off
 		}
 	}
 
-	static const uint size_x[6] = {  1, 16, 16,  1, 16,  1 };
-	static const uint size_y[6] = { 16,  1,  1, 16,  1, 16 };
-	static const uint front_bb_offset_x[6] = { 15,  0,  0, 15,  0, 15 };
-	static const uint front_bb_offset_y[6] = {  0, 15, 15,  0, 15,  0 };
+	static constexpr SpriteBounds back_bounds[6] = {
+		{{}, {0, TILE_SIZE, 40}, {}},
+		{{}, {TILE_SIZE, 0, 40}, {}},
+		{{}, {TILE_SIZE, 0, 40}, {}},
+		{{}, {0, TILE_SIZE, 40}, {}},
+		{{}, {TILE_SIZE, 0, 40}, {}},
+		{{}, {0, TILE_SIZE, 40}, {}},
+	};
 
 	/* The sprites under the vehicles are drawn as SpriteCombine. StartSpriteCombine() has already been called
 	 * The bounding boxes here are the same as for bridge front/roof */
 	for (uint i = 0; i < lengthof(seq_back); ++i) {
 		if (seq_back[i] != 0) {
-			AddSortableSpriteToDraw(seq_back[i], PAL_NONE,
-				x, y, size_x[offset], size_y[offset], 0x28, z,
-				trans_back[i]);
+			AddSortableSpriteToDraw(seq_back[i], PAL_NONE, x, y, z, back_bounds[offset], trans_back[i]);
 		}
 	}
 
@@ -1213,12 +1215,18 @@ static void DrawBridgeRoadBits(TileIndex head_tile, int x, int y, int z, int off
 	EndSpriteCombine();
 	StartSpriteCombine();
 
+	static constexpr SpriteBounds front_bounds[6] = {
+		{{15, 0, 0}, {0, TILE_SIZE, 40}, {-15, 0, 0}},
+		{{0, 15, 0}, {TILE_SIZE, 0, 40}, {0, -15, 0}},
+		{{0, 15, 0}, {TILE_SIZE, 0, 40}, {0, -15, 0}},
+		{{15, 0, 0}, {0, TILE_SIZE, 40}, {-15, 0, 0}},
+		{{0, 15, 0}, {TILE_SIZE, 0, 40}, {0, -15, 0}},
+		{{15, 0, 0}, {0, TILE_SIZE, 40}, {-15, 0, 0}},
+	};
+
 	for (uint i = 0; i < lengthof(seq_front); ++i) {
 		if (seq_front[i] != 0) {
-			AddSortableSpriteToDraw(seq_front[i], PAL_NONE,
-				x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
-				trans_front[i],
-				front_bb_offset_x[offset], front_bb_offset_y[offset]);
+			AddSortableSpriteToDraw(seq_front[i], PAL_NONE, x, y, z, front_bounds[offset], trans_front[i]);
 		}
 	}
 }
@@ -1251,15 +1259,35 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
 		 *
 		 */
 
-		static const int _tunnel_BB[4][12] = {
-			/*  tunnnel-roof  |  Z-separator  | tram-catenary
-			 * w  h  bb_x bb_y| x   y   w   h |bb_x bb_y w h */
-			{  1,  0, -15, -14,  0, 15, 16,  1, 0, 1, 16, 15 }, // NE
-			{  0,  1, -14, -15, 15,  0,  1, 16, 1, 0, 15, 16 }, // SE
-			{  1,  0, -15, -14,  0, 15, 16,  1, 0, 1, 16, 15 }, // SW
-			{  0,  1, -14, -15, 15,  0,  1, 16, 1, 0, 15, 16 }, // NW
+		 /* Tunnel sprites are positioned at 15,15, but the bounding box covers most of the tile. */
+		static constexpr SpriteBounds roof_bounds[DIAGDIR_END] = {
+			{{0, 1, BB_Z_SEPARATOR}, {TILE_SIZE, TILE_SIZE - 1, 1}, {TILE_SIZE - 1, TILE_SIZE - 2, -BB_Z_SEPARATOR}}, // NE
+			{{1, 0, BB_Z_SEPARATOR}, {TILE_SIZE - 1, TILE_SIZE, 1}, {TILE_SIZE - 2, TILE_SIZE - 1, -BB_Z_SEPARATOR}}, // SE
+			{{0, 1, BB_Z_SEPARATOR}, {TILE_SIZE, TILE_SIZE - 1, 1}, {TILE_SIZE - 1, TILE_SIZE - 2, -BB_Z_SEPARATOR}}, // SW
+			{{1, 0, BB_Z_SEPARATOR}, {TILE_SIZE - 1, TILE_SIZE, 1}, {TILE_SIZE - 2, TILE_SIZE - 1, -BB_Z_SEPARATOR}}, // NW
+		};
+
+		/* Catenary sprites are positioned at 0,0, with the same bounding box as above. */
+		static constexpr SpriteBounds catenary_bounds[DIAGDIR_END] = {
+			{{0, 1, BB_Z_SEPARATOR}, {TILE_SIZE, TILE_SIZE - 1, 1}, {0, -1, -BB_Z_SEPARATOR}}, // NE
+			{{1, 0, BB_Z_SEPARATOR}, {TILE_SIZE - 1, TILE_SIZE, 1}, {-1, 0, -BB_Z_SEPARATOR}}, // SE
+			{{0, 1, BB_Z_SEPARATOR}, {TILE_SIZE, TILE_SIZE - 1, 1}, {0, -1, -BB_Z_SEPARATOR}}, // SW
+			{{1, 0, BB_Z_SEPARATOR}, {TILE_SIZE - 1, TILE_SIZE, 1}, {-1, 0, -BB_Z_SEPARATOR}}, // NW
+		};
+
+		static constexpr SpriteBounds rear_sep[DIAGDIR_END] = {
+			{{}, {TILE_SIZE, 1, TILE_HEIGHT}, {}}, // NE
+			{{}, {1, TILE_SIZE, TILE_HEIGHT}, {}}, // SE
+			{{}, {TILE_SIZE, 1, TILE_HEIGHT}, {}}, // SW
+			{{}, {1, TILE_SIZE, TILE_HEIGHT}, {}}, // NW
+		};
+
+		static constexpr SpriteBounds front_sep[DIAGDIR_END] = {
+			{{0, TILE_SIZE - 1, 0}, {TILE_SIZE, 1, TILE_HEIGHT}, {}}, // NE
+			{{TILE_SIZE - 1, 0, 0}, {1, TILE_SIZE, TILE_HEIGHT}, {}}, // SE
+			{{0, TILE_SIZE - 1, 0}, {TILE_SIZE, 1, TILE_HEIGHT}, {}}, // SW
+			{{TILE_SIZE - 1, 0, 0}, {1, TILE_SIZE, TILE_HEIGHT}, {}}, // NW
 		};
-		const int *BB_data = _tunnel_BB[tunnelbridge_direction];
 
 		bool catenary = false;
 
@@ -1332,7 +1360,7 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
 			if (catenary_sprite_base != 0) {
 				catenary = true;
 				StartSpriteCombine();
-				AddSortableSpriteToDraw(catenary_sprite_base + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, BB_data[10], BB_data[11], TILE_HEIGHT, ti->z, IsTransparencySet(TO_CATENARY), BB_data[8], BB_data[9], BB_Z_SEPARATOR);
+				AddSortableSpriteToDraw(catenary_sprite_base + tunnelbridge_direction, PAL_NONE, *ti, catenary_bounds[tunnelbridge_direction], IsTransparencySet(TO_CATENARY));
 			}
 		} else {
 			const RailTypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
@@ -1364,15 +1392,15 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
 
 		if (railtype_overlay != 0 && !catenary) StartSpriteCombine();
 
-		AddSortableSpriteToDraw(image + 1, PAL_NONE, ti->x + TILE_SIZE - 1, ti->y + TILE_SIZE - 1, BB_data[0], BB_data[1], TILE_HEIGHT, ti->z, false, BB_data[2], BB_data[3], BB_Z_SEPARATOR);
+		AddSortableSpriteToDraw(image + 1, PAL_NONE, *ti, roof_bounds[tunnelbridge_direction], false);
 		/* Draw railtype tunnel portal overlay if defined. */
-		if (railtype_overlay != 0) AddSortableSpriteToDraw(railtype_overlay + tunnelbridge_direction, PAL_NONE, ti->x + TILE_SIZE - 1, ti->y + TILE_SIZE - 1, BB_data[0], BB_data[1], TILE_HEIGHT, ti->z, false, BB_data[2], BB_data[3], BB_Z_SEPARATOR);
+		if (railtype_overlay != 0) AddSortableSpriteToDraw(railtype_overlay + tunnelbridge_direction, PAL_NONE, *ti, roof_bounds[tunnelbridge_direction], false);
 
 		if (catenary || railtype_overlay != 0) EndSpriteCombine();
 
 		/* Add helper BB for sprite sorting that separates the tunnel from things beside of it. */
-		AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x,              ti->y,              BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
-		AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x + BB_data[4], ti->y + BB_data[5], BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
+		AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, *ti, rear_sep[tunnelbridge_direction]);
+		AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, *ti, front_sep[tunnelbridge_direction]);
 
 		DrawBridgeMiddle(ti);
 	} else { // IsBridge(ti->tile)
@@ -1423,7 +1451,7 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
 		 * it doesn't disappear behind it
 		 */
 		/* Bridge heads are drawn solid no matter how invisibility/transparency is set */
-		AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
+		AddSortableSpriteToDraw(psid->sprite, psid->pal, *ti, {{}, {TILE_SIZE, TILE_SIZE, static_cast<uint8_t>(ti->tileh == SLOPE_FLAT ? 0 : TILE_HEIGHT)}, {}});
 
 		if (transport_type == TRANSPORT_ROAD) {
 			uint offset = tunnelbridge_direction;
@@ -1445,9 +1473,9 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
 				SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
 				if (surface != 0) {
 					if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
-						AddSortableSpriteToDraw(surface + ((DiagDirToAxis(tunnelbridge_direction) == AXIS_X) ? RTBO_X : RTBO_Y), PAL_NONE, ti->x, ti->y, 16, 16, 0, ti->z + 8);
+						AddSortableSpriteToDraw(surface + ((DiagDirToAxis(tunnelbridge_direction) == AXIS_X) ? RTBO_X : RTBO_Y), PAL_NONE, *ti, {{0, 0, TILE_HEIGHT}, {TILE_SIZE, TILE_SIZE, 0}, {}});
 					} else {
-						AddSortableSpriteToDraw(surface + RTBO_SLOPE + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, 16, 16, 8, ti->z);
+						AddSortableSpriteToDraw(surface + RTBO_SLOPE + tunnelbridge_direction, PAL_NONE, *ti, {{}, {TILE_SIZE, TILE_SIZE, TILE_HEIGHT}, {}});
 					}
 				}
 				/* Don't fallback to non-overlay sprite -- the spec states that
@@ -1460,15 +1488,15 @@ static void DrawTile_TunnelBridge(TileInfo *ti)
 				if (rti->UsesOverlay()) {
 					SpriteID overlay = GetCustomRailSprite(rti, ti->tile, RTSG_OVERLAY);
 					if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
-						AddSortableSpriteToDraw(overlay + RTO_X + DiagDirToAxis(tunnelbridge_direction), PALETTE_CRASH, ti->x, ti->y, 16, 16, 0, ti->z + 8);
+						AddSortableSpriteToDraw(overlay + RTO_X + DiagDirToAxis(tunnelbridge_direction), PALETTE_CRASH, *ti, {{0, 0, TILE_HEIGHT}, {TILE_SIZE, TILE_SIZE, 0}, {}});
 					} else {
-						AddSortableSpriteToDraw(overlay + RTO_SLOPE_NE + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
+						AddSortableSpriteToDraw(overlay + RTO_SLOPE_NE + tunnelbridge_direction, PALETTE_CRASH, *ti, {{}, {TILE_SIZE, TILE_SIZE, TILE_HEIGHT}, {}});
 					}
 				} else {
 					if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
-						AddSortableSpriteToDraw(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH, ti->x, ti->y, 16, 16, 0, ti->z + 8);
+						AddSortableSpriteToDraw(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH, *ti, {{0, 0, TILE_HEIGHT}, {TILE_SIZE, TILE_SIZE, 0}, {}});
 					} else {
-						AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
+						AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, *ti, {{}, {TILE_SIZE, TILE_SIZE, TILE_HEIGHT}, {}});
 					}
 				}
 			}
@@ -1578,7 +1606,7 @@ void DrawBridgeMiddle(const TileInfo *ti)
 	int z = bridge_z - BRIDGE_Z_START;
 
 	/* Add a bounding box that separates the bridge from things below it. */
-	AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
+	AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR, {{}, {TILE_SIZE, TILE_SIZE, 1}, {}});
 
 	/* Draw Trambits as SpriteCombine */
 	if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
@@ -1586,9 +1614,9 @@ void DrawBridgeMiddle(const TileInfo *ti)
 	/* Draw floor and far part of bridge*/
 	if (!IsInvisibilitySet(TO_BRIDGES)) {
 		if (axis == AXIS_X) {
-			AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
+			AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, z, {{0, 0, BRIDGE_Z_START}, {TILE_SIZE, 1, 40}, {0, 0, -BRIDGE_Z_START}}, IsTransparencySet(TO_BRIDGES));
 		} else {
-			AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
+			AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, z, {{0, 0, BRIDGE_Z_START}, {1, TILE_SIZE, 40}, {0, 0, -BRIDGE_Z_START}}, IsTransparencySet(TO_BRIDGES));
 		}
 	}
 
@@ -1602,16 +1630,16 @@ void DrawBridgeMiddle(const TileInfo *ti)
 		if (rti->UsesOverlay() && !IsInvisibilitySet(TO_BRIDGES)) {
 			SpriteID surface = GetCustomRailSprite(rti, rampsouth, RTSG_BRIDGE, TCX_ON_BRIDGE);
 			if (surface != 0) {
-				AddSortableSpriteToDraw(surface + axis, PAL_NONE, x, y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
+				AddSortableSpriteToDraw(surface + axis, PAL_NONE, x, y, bridge_z, {{}, {TILE_SIZE, TILE_SIZE, 0}, {}}, IsTransparencySet(TO_BRIDGES));
 			}
 		}
 
 		if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && !IsInvisibilitySet(TO_BRIDGES) && HasTunnelBridgeReservation(rampnorth)) {
 			if (rti->UsesOverlay()) {
 				SpriteID overlay = GetCustomRailSprite(rti, ti->tile, RTSG_OVERLAY);
-				AddSortableSpriteToDraw(overlay + RTO_X + axis, PALETTE_CRASH, ti->x, ti->y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
+				AddSortableSpriteToDraw(overlay + RTO_X + axis, PALETTE_CRASH, ti->x, ti->y, bridge_z, {{}, {TILE_SIZE, TILE_SIZE, 0}, {}}, IsTransparencySet(TO_BRIDGES));
 			} else {
-				AddSortableSpriteToDraw(axis == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH, ti->x, ti->y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
+				AddSortableSpriteToDraw(axis == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH, ti->x, ti->y, bridge_z, {{}, {TILE_SIZE, TILE_SIZE, 0}, {}}, IsTransparencySet(TO_BRIDGES));
 			}
 		}
 
@@ -1626,10 +1654,10 @@ void DrawBridgeMiddle(const TileInfo *ti)
 	if (!IsInvisibilitySet(TO_BRIDGES)) {
 		if (axis == AXIS_X) {
 			y += 12;
-			if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
+			if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, z, {{0, 3, BRIDGE_Z_START}, {TILE_SIZE, 1, 40}, {0, -3, -BRIDGE_Z_START}}, IsTransparencySet(TO_BRIDGES));
 		} else {
 			x += 12;
-			if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
+			if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, z, {{3, 0, BRIDGE_Z_START}, {1, TILE_SIZE, 40}, {-3, 0, -BRIDGE_Z_START}}, IsTransparencySet(TO_BRIDGES));
 		}
 	}
 

src/vehicle.cpp

@@ -1109,8 +1109,7 @@ static void DoDrawVehicle(const Vehicle *v)
 	for (uint i = 0; i < v->sprite_cache.sprite_seq.count; ++i) {
 		PaletteID pal2 = v->sprite_cache.sprite_seq.seq[i].pal;
 		if (!pal2 || v->vehstatus.Test(VehState::Crashed)) pal2 = pal;
-		AddSortableSpriteToDraw(v->sprite_cache.sprite_seq.seq[i].sprite, pal2, v->x_pos + v->x_offs, v->y_pos + v->y_offs,
-			v->x_extent, v->y_extent, v->z_extent, v->z_pos, shadowed, v->x_bb_offs, v->y_bb_offs);
+		AddSortableSpriteToDraw(v->sprite_cache.sprite_seq.seq[i].sprite, pal2, v->x_pos, v->y_pos, v->z_pos, v->bounds, shadowed);
 	}
 	EndSpriteCombine();
 }
@@ -1674,12 +1673,24 @@ void Vehicle::UpdateBoundingBoxCoordinates(bool update_cache) const
 	Rect new_coord;
 	this->sprite_cache.sprite_seq.GetBounds(&new_coord);
 
-	Point pt = RemapCoords(this->x_pos + this->x_offs, this->y_pos + this->y_offs, this->z_pos);
+	/* z-bounds are not used. */
+	Point pt = RemapCoords(this->x_pos + this->bounds.origin.x + this->bounds.offset.x, this->y_pos + this->bounds.origin.y + this->bounds.offset.y, this->z_pos);
 	new_coord.left   += pt.x;
 	new_coord.top    += pt.y;
 	new_coord.right  += pt.x + 2 * ZOOM_BASE;
 	new_coord.bottom += pt.y + 2 * ZOOM_BASE;
 
+	extern bool _draw_bounding_boxes;
+	if (_draw_bounding_boxes) {
+		int x = this->x_pos + this->bounds.origin.x;
+		int y = this->y_pos + this->bounds.origin.y;
+		int z = this->z_pos + this->bounds.origin.z;
+		new_coord.left   = std::min(new_coord.left, RemapCoords(x + bounds.extent.x, y, z).x);
+		new_coord.right  = std::max(new_coord.right, RemapCoords(x, y + bounds.extent.y, z).x + 1);
+		new_coord.top    = std::min(new_coord.top, RemapCoords(x, y, z + bounds.extent.z).y);
+		new_coord.bottom = std::max(new_coord.bottom, RemapCoords(x + bounds.extent.x, y + bounds.extent.y, z).y + 1);
+	}
+
 	if (update_cache) {
 		/*
 		 * If the old coordinates are invalid, set the cache to the new coordinates for correct

src/vehicle_base.h

@@ -10,6 +10,7 @@
 #ifndef VEHICLE_BASE_H
 #define VEHICLE_BASE_H
 
+#include "sprite.h"
 #include "track_type.h"
 #include "command_type.h"
 #include "order_base.h"
@@ -293,13 +294,7 @@ public:
 	 * 0xff == reserved for another custom sprite
 	 */
 	uint8_t spritenum = 0;
-	uint8_t x_extent = 0; ///< x-extent of vehicle bounding box
-	uint8_t y_extent = 0; ///< y-extent of vehicle bounding box
-	uint8_t z_extent = 0; ///< z-extent of vehicle bounding box
-	int8_t x_bb_offs = 0; ///< x offset of vehicle bounding box
-	int8_t y_bb_offs = 0; ///< y offset of vehicle bounding box
-	int8_t x_offs = 0; ///< x offset for vehicle sprite
-	int8_t y_offs = 0; ///< y offset for vehicle sprite
+	SpriteBounds bounds{}; ///< Bounding box of vehicle.
 	EngineID engine_type = EngineID::Invalid(); ///< The type of engine used for this vehicle.
 
 	TextEffectID fill_percent_te_id = INVALID_TE_ID; ///< a text-effect id to a loading indicator object

src/viewport.cpp

@@ -660,12 +660,17 @@ static void AddCombinedSprite(SpriteID image, PaletteID pal, int x, int y, int z
  * @param bb_offset_z bounding box extent towards negative Z (world)
  * @param sub Only draw a part of the sprite.
  */
-void AddSortableSpriteToDraw(SpriteID image, PaletteID pal, int x, int y, int w, int h, int dz, int z, bool transparent, int bb_offset_x, int bb_offset_y, int bb_offset_z, const SubSprite *sub)
+void AddSortableSpriteToDraw(SpriteID image, PaletteID pal, int x, int y, int z, const SpriteBounds &bounds, bool transparent, const SubSprite *sub)
 {
 	int32_t left, right, top, bottom;
 
 	assert((image & SPRITE_MASK) < MAX_SPRITES);
 
+	/* Move to bounding box. */
+	x += bounds.origin.x;
+	y += bounds.origin.y;
+	z += bounds.origin.z;
+
 	/* make the sprites transparent with the right palette */
 	if (transparent) {
 		SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
@@ -673,21 +678,21 @@ void AddSortableSpriteToDraw(SpriteID image, PaletteID pal, int x, int y, int w,
 	}
 
 	if (_vd.combine_sprites == SPRITE_COMBINE_ACTIVE) {
-		AddCombinedSprite(image, pal, x, y, z, sub);
+		AddCombinedSprite(image, pal, x + bounds.offset.x, y + bounds.offset.y, z + bounds.offset.z, sub);
 		return;
 	}
 
 	_vd.last_child = LAST_CHILD_NONE;
 
-	Point pt = RemapCoords(x, y, z);
+	Point pt = RemapCoords(x + bounds.offset.x, y + bounds.offset.y, z + bounds.offset.z);
 	int tmp_left, tmp_top, tmp_x = pt.x, tmp_y = pt.y;
 
 	/* Compute screen extents of sprite */
 	if (image == SPR_EMPTY_BOUNDING_BOX) {
-		left = tmp_left = RemapCoords(x + w          , y + bb_offset_y, z + bb_offset_z).x;
-		right           = RemapCoords(x + bb_offset_x, y + h          , z + bb_offset_z).x + 1;
-		top  = tmp_top  = RemapCoords(x + bb_offset_x, y + bb_offset_y, z + dz         ).y;
-		bottom          = RemapCoords(x + w          , y + h          , z + bb_offset_z).y + 1;
+		left = tmp_left = RemapCoords(x + bounds.extent.x, y, z).x;
+		right           = RemapCoords(x, y + bounds.extent.y, z).x + 1;
+		top  = tmp_top  = RemapCoords(x, y, z + bounds.extent.z).y;
+		bottom          = RemapCoords(x + bounds.extent.x, y + bounds.extent.y, z).y + 1;
 	} else {
 		const Sprite *spr = GetSprite(image & SPRITE_MASK, SpriteType::Normal);
 		left = tmp_left = (pt.x += spr->x_offs);
@@ -698,10 +703,10 @@ void AddSortableSpriteToDraw(SpriteID image, PaletteID pal, int x, int y, int w,
 
 	if (_draw_bounding_boxes && (image != SPR_EMPTY_BOUNDING_BOX)) {
 		/* Compute maximal extents of sprite and its bounding box */
-		left   = std::min(left  , RemapCoords(x + w          , y + bb_offset_y, z + bb_offset_z).x);
-		right  = std::max(right , RemapCoords(x + bb_offset_x, y + h          , z + bb_offset_z).x + 1);
-		top    = std::min(top   , RemapCoords(x + bb_offset_x, y + bb_offset_y, z + dz         ).y);
-		bottom = std::max(bottom, RemapCoords(x + w          , y + h          , z + bb_offset_z).y + 1);
+		left   = std::min(left  , RemapCoords(x + bounds.extent.x, y, z).x);
+		right  = std::max(right , RemapCoords(x, y + bounds.extent.y, z).x + 1);
+		top    = std::min(top   , RemapCoords(x, y, z + bounds.extent.z).y);
+		bottom = std::max(bottom, RemapCoords(x + bounds.extent.x, y + bounds.extent.y, z).y + 1);
 	}
 
 	/* Do not add the sprite to the viewport, if it is outside */
@@ -722,14 +727,14 @@ void AddSortableSpriteToDraw(SpriteID image, PaletteID pal, int x, int y, int w,
 	ps.image = image;
 	ps.pal = pal;
 	ps.sub = sub;
-	ps.xmin = x + bb_offset_x;
-	ps.xmax = x + std::max(bb_offset_x, w) - 1;
+	ps.xmin = x;
+	ps.xmax = x + bounds.extent.x - 1;
 
-	ps.ymin = y + bb_offset_y;
-	ps.ymax = y + std::max(bb_offset_y, h) - 1;
+	ps.ymin = y;
+	ps.ymax = y + bounds.extent.y - 1;
 
-	ps.zmin = z + bb_offset_z;
-	ps.zmax = z + std::max(bb_offset_z, dz) - 1;
+	ps.zmin = z;
+	ps.zmax = z + bounds.extent.z - 1;
 
 	ps.first_child = LAST_CHILD_NONE;
 

src/viewport_func.h

@@ -11,6 +11,7 @@
 #define VIEWPORT_FUNC_H
 
 #include "gfx_type.h"
+#include "sprite.h"
 #include "viewport_type.h"
 #include "window_type.h"
 #include "tile_map.h"
@@ -51,10 +52,14 @@ void OffsetGroundSprite(int x, int y);
 
 void DrawGroundSprite(SpriteID image, PaletteID pal, const SubSprite *sub = nullptr, int extra_offs_x = 0, int extra_offs_y = 0);
 void DrawGroundSpriteAt(SpriteID image, PaletteID pal, int32_t x, int32_t y, int z, const SubSprite *sub = nullptr, int extra_offs_x = 0, int extra_offs_y = 0);
-void AddSortableSpriteToDraw(SpriteID image, PaletteID pal, int x, int y, int w, int h, int dz, int z, bool transparent = false, int bb_offset_x = 0, int bb_offset_y = 0, int bb_offset_z = 0, const SubSprite *sub = nullptr);
+void AddSortableSpriteToDraw(SpriteID image, PaletteID pal, int x, int y, int z, const SpriteBounds &bounds, bool transparent = false, const SubSprite *sub = nullptr);
 void AddChildSpriteScreen(SpriteID image, PaletteID pal, int x, int y, bool transparent = false, const SubSprite *sub = nullptr, bool scale = true, bool relative = true);
 std::string *ViewportAddString(const DrawPixelInfo *dpi, const ViewportSign *sign, ViewportStringFlags flags, Colours colour);
 
+inline void AddSortableSpriteToDraw(SpriteID image, PaletteID pal, const PointXyz<int32_t> &world, const SpriteBounds &bounds, bool transparent = false, const SubSprite *sub = nullptr)
+{
+	AddSortableSpriteToDraw(image, pal, world.x, world.y, world.z, bounds, transparent, sub);
+}
 
 void StartSpriteCombine();
 void EndSpriteCombine();

src/viewport_type.h

@@ -89,8 +89,8 @@ enum ZoomStateChange : uint8_t {
  * z=6     reserved, currently unused.
  * z=7     Z separator between bridge/tunnel and the things under/above it.
  */
-static const uint BB_HEIGHT_UNDER_BRIDGE = 6; ///< Everything that can be built under low bridges, must not exceed this Z height.
-static const uint BB_Z_SEPARATOR         = 7; ///< Separates the bridge/tunnel from the things under/above it.
+static constexpr int BB_HEIGHT_UNDER_BRIDGE = 6; ///< Everything that can be built under low bridges, must not exceed this Z height.
+static constexpr int BB_Z_SEPARATOR         = 7; ///< Separates the bridge/tunnel from the things under/above it.
 
 /** Viewport place method (type of highlighted area and placed objects) */
 enum ViewportPlaceMethod : uint8_t {

src/water_cmd.cpp

@@ -806,11 +806,7 @@ static void DrawWaterTileStruct(const TileInfo *ti, std::span<const DrawTileSeqS
 	for (const DrawTileSeqStruct &dtss : seq) {
 		uint tile_offs = offset + dtss.image.sprite;
 		if (feature < CF_END) tile_offs = GetCanalSpriteOffset(feature, ti->tile, tile_offs);
-		AddSortableSpriteToDraw(base + tile_offs, palette,
-			ti->x + dtss.delta_x, ti->y + dtss.delta_y,
-			dtss.size_x, dtss.size_y,
-			dtss.size_z, ti->z + dtss.delta_z,
-			IsTransparencySet(TO_BUILDINGS));
+		AddSortableSpriteToDraw(base + tile_offs, palette, *ti, dtss, IsTransparencySet(TO_BUILDINGS));
 	}
 }