Function DrawRoadCatenary

src/road_cmd.cpp:1441–1476

* Draws the catenary for the given tile * @param ti information about the tile (slopes, height etc) */

 * @param ti information about the tile (slopes, height etc)
 */
void DrawRoadCatenary(const TileInfo *ti)
{
	RoadBits road = ROAD_NONE;
	RoadBits tram = ROAD_NONE;

	if (IsTileType(ti->tile, MP_ROAD)) {
		if (IsNormalRoad(ti->tile)) {
			road = GetRoadBits(ti->tile, RTT_ROAD);
			tram = GetRoadBits(ti->tile, RTT_TRAM);
		} else if (IsLevelCrossing(ti->tile)) {
			tram = road = (GetCrossingRailAxis(ti->tile) == AXIS_Y ? ROAD_X : ROAD_Y);
		}
	} else if (IsTileType(ti->tile, MP_STATION)) {
		if (IsAnyRoadStop(ti->tile)) {
			if (IsDriveThroughStopTile(ti->tile)) {
				Axis axis = GetDriveThroughStopAxis(ti->tile);
				tram = road = (axis == AXIS_X ? ROAD_X : ROAD_Y);
			} else {
				tram = road = DiagDirToRoadBits(GetBayRoadStopDir(ti->tile));
			}
		}
	} else {
		/* No road here, no catenary to draw */
		return;
	}

	RoadType rt = GetRoadTypeRoad(ti->tile);
	if (rt != INVALID_ROADTYPE && HasRoadCatenaryDrawn(rt)) {
		DrawRoadTypeCatenary(ti, rt, road);
	}

	rt = GetRoadTypeTram(ti->tile);
	if (rt != INVALID_ROADTYPE && HasRoadCatenaryDrawn(rt)) {
		DrawRoadTypeCatenary(ti, rt, tram);
	}
}

/**
 * Draws details on/around the road