// Redstone fence gates
Block block = event.getBlock();
for(BlockFace face: BlockFace.values()) {
	Block faceBlock = block.getRelative(face);
	if (faceBlock.getType() == Material.FENCE_GATE) {
		byte data = faceBlock.getData();
		if (block.isBlockPowered() || block.isBlockIndirectlyPowered()) {
			if (ra.contains(block.getLocation()) || faceBlock.getData() >= 4) { continue; }
			ra.add(block.getLocation());
			data += 4;
		} else {
			if (faceBlock.getData() < 4) { continue; }
			ra.remove(block.getLocation());
			data -= 4;
		}
		faceBlock.setData(data);
	}
}