Function StationPickerDrawSprite

src/station_cmd.cpp:3517–3566

}

void StationPickerDrawSprite(int x, int y, StationType st, RailType railtype, RoadType roadtype, int image)
{
	int32_t total_offset = 0;
	PaletteID pal = GetCompanyPalette(_local_company);
	const DrawTileSprites *t = GetStationTileLayout(st, image);
	const RailTypeInfo *railtype_info = nullptr;

	if (railtype != INVALID_RAILTYPE) {
		railtype_info = GetRailTypeInfo(railtype);
		total_offset = railtype_info->GetRailtypeSpriteOffset();
	}

	SpriteID img = t->ground.sprite;
	RailTrackOffset overlay_offset;
	if (railtype_info != nullptr && railtype_info->UsesOverlay() && SplitGroundSpriteForOverlay(nullptr, &img, &overlay_offset)) {
		SpriteID ground = GetCustomRailSprite(railtype_info, INVALID_TILE, RTSG_GROUND);
		DrawSprite(img, PAL_NONE, x, y);
		DrawSprite(ground + overlay_offset, PAL_NONE, x, y);
	} else {
		DrawSprite(img + total_offset, HasBit(img, PALETTE_MODIFIER_COLOUR) ? pal : PAL_NONE, x, y);
	}

	if (roadtype != INVALID_ROADTYPE) {
		const RoadTypeInfo *roadtype_info = GetRoadTypeInfo(roadtype);
		if (image >= 4) {
			/* Drive-through stop */
			uint sprite_offset = 5 - image;

			/* Road underlay takes precedence over tram */
			if (roadtype_info->UsesOverlay()) {
				SpriteID ground = GetCustomRoadSprite(roadtype_info, INVALID_TILE, ROTSG_GROUND);
				DrawSprite(ground + sprite_offset, PAL_NONE, x, y);

				SpriteID overlay = GetCustomRoadSprite(roadtype_info, INVALID_TILE, ROTSG_OVERLAY);
				if (overlay) DrawSprite(overlay + sprite_offset, PAL_NONE, x, y);
			} else if (RoadTypeIsTram(roadtype)) {
				DrawSprite(SPR_TRAMWAY_TRAM + sprite_offset, PAL_NONE, x, y);
			}
		} else {
			/* Bay stop */
			if (RoadTypeIsRoad(roadtype) && roadtype_info->UsesOverlay()) {
				SpriteID ground = GetCustomRoadSprite(roadtype_info, INVALID_TILE, ROTSG_ROADSTOP);
				DrawSprite(ground + image, PAL_NONE, x, y);
			}
		}
	}

	/* Default waypoint has no railtype specific sprites */
	DrawRailTileSeqInGUI(x, y, t, (st == StationType::RailWaypoint || st == StationType::RoadWaypoint) ? 0 : total_offset, 0, pal);
}

static int GetSlopePixelZ_Station(TileIndex tile, uint, uint, bool)
{