mirror of https://github.com/OpenTTD/OpenTTD.git
(svn r20420) -Codechange: Add TileContext enum instead of using a bool.
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@ -166,20 +166,20 @@ static TrackBits MaskWireBits(TileIndex t, TrackBits tracks)
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/**
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* Get the base wire sprite to use.
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*/
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static inline SpriteID GetWireBase(TileIndex tile, bool upper_halftile = false)
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static inline SpriteID GetWireBase(TileIndex tile, TileContext context = TC_NORMAL)
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{
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const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
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SpriteID wires = GetCustomRailSprite(rti, tile, RTSG_WIRES, upper_halftile);
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SpriteID wires = GetCustomRailSprite(rti, tile, RTSG_WIRES, context);
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return wires == 0 ? SPR_WIRE_BASE : wires;
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}
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/**
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* Get the base pylon sprite to use.
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*/
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static inline SpriteID GetPylonBase(TileIndex tile, bool upper_halftile = false)
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static inline SpriteID GetPylonBase(TileIndex tile, TileContext context = TC_NORMAL)
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{
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const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
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SpriteID pylons = GetCustomRailSprite(rti, tile, RTSG_PYLONS, upper_halftile);
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SpriteID pylons = GetCustomRailSprite(rti, tile, RTSG_PYLONS, context);
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return pylons == 0 ? SPR_PYLON_BASE : pylons;
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}
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@ -303,7 +303,7 @@ static void DrawCatenaryRailway(const TileInfo *ti)
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AdjustTileh(ti->tile, &tileh[TS_HOME]);
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SpriteID pylon_normal = GetPylonBase(ti->tile);
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SpriteID pylon_halftile = (halftile_corner != CORNER_INVALID) ? GetPylonBase(ti->tile, true) : pylon_normal;
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SpriteID pylon_halftile = (halftile_corner != CORNER_INVALID) ? GetPylonBase(ti->tile, TC_UPPER_HALFTILE) : pylon_normal;
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for (DiagDirection i = DIAGDIR_BEGIN; i < DIAGDIR_END; i++) {
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static const uint edge_corners[] = {
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@ -442,7 +442,7 @@ static void DrawCatenaryRailway(const TileInfo *ti)
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}
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SpriteID wire_normal = GetWireBase(ti->tile);
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SpriteID wire_halftile = (halftile_corner != CORNER_INVALID) ? GetWireBase(ti->tile, true) : wire_normal;
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SpriteID wire_halftile = (halftile_corner != CORNER_INVALID) ? GetWireBase(ti->tile, TC_UPPER_HALFTILE) : wire_normal;
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Track halftile_track;
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switch (halftile_corner) {
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case CORNER_W: halftile_track = TRACK_LEFT; break;
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@ -297,7 +297,7 @@ void IndustryTileOverrideManager::SetEntitySpec(const IndustryTileSpec *its)
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* @return value corresponding to the grf expected format:
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* Terrain type: 0 normal, 1 desert, 2 rainforest, 4 on or above snowline
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*/
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uint32 GetTerrainType(TileIndex tile, bool upper_halftile)
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uint32 GetTerrainType(TileIndex tile, TileContext context)
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{
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switch (_settings_game.game_creation.landscape) {
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case LT_TROPIC: return GetTropicZone(tile);
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@ -314,7 +314,7 @@ uint32 GetTerrainType(TileIndex tile, bool upper_halftile)
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/* During map generation the snowstate may not be valid yet, as the tileloop may not have run yet. */
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if (_generating_world) goto genworld; // we do not care about foundations here
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RailGroundType ground = GetRailGroundType(tile);
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has_snow = (ground == RAIL_GROUND_ICE_DESERT || (upper_halftile && ground == RAIL_GROUND_HALF_SNOW));
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has_snow = (ground == RAIL_GROUND_ICE_DESERT || (context == TC_UPPER_HALFTILE && ground == RAIL_GROUND_HALF_SNOW));
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break;
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}
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@ -17,6 +17,12 @@
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#include "tile_cmd.h"
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/** Contextx for tile accesses */
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enum TileContext {
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TC_NORMAL, ///< Nothing special.
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TC_UPPER_HALFTILE, ///< Querying information about the upper part of a tile with halftile foundation.
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};
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/**
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* Maps an entity id stored on the map to a GRF file.
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* Entities are objects used ingame (houses, industries, industry tiles) for
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@ -124,7 +130,7 @@ extern IndustryTileOverrideManager _industile_mngr;
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extern AirportOverrideManager _airport_mngr;
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extern AirportTileOverrideManager _airporttile_mngr;
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uint32 GetTerrainType(TileIndex tile, bool upper_halftile = false);
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uint32 GetTerrainType(TileIndex tile, TileContext context = TC_NORMAL);
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TileIndex GetNearbyTile(byte parameter, TileIndex tile);
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uint32 GetNearbyTileInformation(TileIndex tile);
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@ -55,7 +55,7 @@ static uint32 RailTypeGetVariable(const ResolverObject *object, byte variable, b
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}
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switch (variable) {
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case 0x40: return GetTerrainType(tile, object->u.routes.upper_halftile);
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case 0x40: return GetTerrainType(tile, object->u.routes.context);
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case 0x41: return 0;
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case 0x42: return IsLevelCrossingTile(tile) && IsCrossingBarred(tile);
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case 0x43:
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@ -76,7 +76,7 @@ static const SpriteGroup *RailTypeResolveReal(const ResolverObject *object, cons
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return NULL;
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}
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static inline void NewRailTypeResolver(ResolverObject *res, TileIndex tile, bool upper_halftile)
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static inline void NewRailTypeResolver(ResolverObject *res, TileIndex tile, TileContext context)
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{
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res->GetRandomBits = &RailTypeGetRandomBits;
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res->GetTriggers = &RailTypeGetTriggers;
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@ -85,7 +85,7 @@ static inline void NewRailTypeResolver(ResolverObject *res, TileIndex tile, bool
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res->ResolveReal = &RailTypeResolveReal;
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res->u.routes.tile = tile;
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res->u.routes.upper_halftile = upper_halftile;
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res->u.routes.context = context;
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res->callback = CBID_NO_CALLBACK;
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res->callback_param1 = 0;
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@ -96,7 +96,7 @@ static inline void NewRailTypeResolver(ResolverObject *res, TileIndex tile, bool
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res->count = 0;
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}
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SpriteID GetCustomRailSprite(const RailtypeInfo *rti, TileIndex tile, RailTypeSpriteGroup rtsg, bool upper_halftile)
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SpriteID GetCustomRailSprite(const RailtypeInfo *rti, TileIndex tile, RailTypeSpriteGroup rtsg, TileContext context)
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{
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assert(rtsg < RTSG_END);
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@ -105,7 +105,7 @@ SpriteID GetCustomRailSprite(const RailtypeInfo *rti, TileIndex tile, RailTypeSp
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const SpriteGroup *group;
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ResolverObject object;
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NewRailTypeResolver(&object, tile, upper_halftile);
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NewRailTypeResolver(&object, tile, context);
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group = SpriteGroup::Resolve(rti->group[rtsg], &object);
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if (group == NULL || group->GetNumResults() == 0) return 0;
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@ -135,5 +135,5 @@ uint8 GetReverseRailTypeTranslation(RailType railtype, const GRFFile *grffile)
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*/
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void GetRailTypeResolver(ResolverObject *ro, uint index)
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{
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NewRailTypeResolver(ro, index, false);
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NewRailTypeResolver(ro, index, TC_NORMAL);
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}
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@ -13,8 +13,9 @@
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#define NEWGRF_RAILTYPE_H
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#include "rail.h"
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#include "newgrf_commons.h"
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SpriteID GetCustomRailSprite(const RailtypeInfo *rti, TileIndex tile, RailTypeSpriteGroup rtsg, bool upper_halftile = false);
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SpriteID GetCustomRailSprite(const RailtypeInfo *rti, TileIndex tile, RailTypeSpriteGroup rtsg, TileContext context = TC_NORMAL);
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uint8 GetReverseRailTypeTranslation(RailType railtype, const GRFFile *grffile);
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@ -22,6 +22,7 @@
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#include "newgrf_callbacks.h"
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#include "newgrf_generic.h"
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#include "newgrf_storage.h"
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#include "newgrf_commons.h"
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/**
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* Gets the value of a so-called newgrf "register".
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@ -346,7 +347,7 @@ struct ResolverObject {
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} generic;
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struct {
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TileIndex tile;
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bool upper_halftile; ///< Are we resolving sprites for the upper halftile?
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TileContext context; ///< Are we resolving sprites for the upper halftile, or on a bridge?
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} routes;
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struct {
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const struct Station *st; ///< Station of the airport for which the callback is run, or NULL for build gui.
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@ -1809,7 +1809,7 @@ static void DrawTrackDetails(const TileInfo *ti, const RailtypeInfo *rti)
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{
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/* Base sprite for track fences.
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* Note: Halftile slopes only have fences on the upper part. */
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SpriteID base_image = GetCustomRailSprite(rti, ti->tile, RTSG_FENCES, IsHalftileSlope(ti->tileh));
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SpriteID base_image = GetCustomRailSprite(rti, ti->tile, RTSG_FENCES, IsHalftileSlope(ti->tileh) ? TC_UPPER_HALFTILE : TC_NORMAL);
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if (base_image == 0) base_image = SPR_TRACK_FENCE_FLAT_X;
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switch (GetRailGroundType(ti->tile)) {
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@ -1968,8 +1968,8 @@ static void DrawTrackBitsOverlay(TileInfo *ti, TrackBits track, const RailtypeIn
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if (IsValidCorner(halftile_corner)) {
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DrawFoundation(ti, HalftileFoundation(halftile_corner));
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overlay = GetCustomRailSprite(rti, ti->tile, RTSG_OVERLAY, true);
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ground = GetCustomRailSprite(rti, ti->tile, RTSG_GROUND, true);
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overlay = GetCustomRailSprite(rti, ti->tile, RTSG_OVERLAY, TC_UPPER_HALFTILE);
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ground = GetCustomRailSprite(rti, ti->tile, RTSG_GROUND, TC_UPPER_HALFTILE);
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/* Draw higher halftile-overlay: Use the sloped sprites with three corners raised. They probably best fit the lightning. */
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Slope fake_slope = SlopeWithThreeCornersRaised(OppositeCorner(halftile_corner));
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