Focusing

Cameron Kelliher Elements-

Focusing

Elements- / DoubleChestCheck

Created December 6, 2014 02:58

Check if a chest block is a double or single then get the inventory(s)

	Block b = ....
	BlockFace[] sides = new BlockFace[] {BlockFace.NORTH, BlockFace.EAST, BlockFace.SOUTH, BlockFace.WEST};

	for(BlockFace bf : sides) {

	if(b.getRelative(bf, 1).getType() == b.getType()) {

	Inventory left = ((DoubleChestInventory)((InventoryHolder)b.getState()).getInventory()).getLeftSide();
	Inventory right = ((DoubleChestInventory)((InventoryHolder)b.getState()).getInventory()).getRightSide();

Elements- / pngHeaderInformation.js

Created November 14, 2015 03:40

Get PNG header information from an image (width, height, bit depth, and color type)

	var fs = require('fs');

	fs.readFile('test.png', function (err, data) {
	var pngHeader = new Buffer([137, 80, 78, 71, 13, 10, 26, 10]);
	var header = data.slice(0, 8);
	if(header.compare(pngHeader) != 0) {
	console.log('Invalid png file header!')
	process.exit();
	}
	var fileHeader = {

Elements- / getMP4Length.js

Created March 26, 2016 18:32

Read the duration of a mp4 file nodejs

	var buff = new Buffer(100);
	fs.open(file, 'r', function(err, fd) {
	fs.read(fd, buff, 0, 100, 0, function(err, bytesRead, buffer) {
	var start = buffer.indexOf(new Buffer('mvhd')) + 17;
	var timeScale = buffer.readUInt32BE(start, 4);
	var duration = buffer.readUInt32BE(start + 4, 4);
	var movieLength = Math.floor(duration/timeScale);

	console.log('time scale: ' + timeScale);
	console.log('duration: ' + duration);