Function DrawPillarColumn

src/tunnelbridge_cmd.cpp:1078–1085

* Draw two bridge pillars (north and south). * @param z_bottom Bottom Z * @param z_top Top Z * @param psid Pillarsprite * @param x Pillar X * @param y Pillar Y * @param w Bounding box size in X direction * @param h Bounding box size in Y direction * @return Reached Z at the bottom */

 * @return Reached Z at the bottom
 */
static int DrawPillarColumn(int z_bottom, int z_top, const PalSpriteID &psid, int x, int y, int w, int h)
{
	int cur_z;
	for (cur_z = z_top; cur_z >= z_bottom; cur_z -= TILE_HEIGHT) {
		DrawPillar(psid, x, y, cur_z, w, h, nullptr);
	}
	return cur_z;
}

/**
 * Draws the pillars under high bridges.