Have you ever wanted to change a mountain to just one certain block but your server was never to powerful to handle plugins like World Edit? Well Now's Your Chance! In BlockChanger you can just use /blockchanger <block id> (It also Supports metta data so you can chose which wool you want. and all you have to do is left-click the ground and then it will change whatever block you hit into the block you chose. I will be adding permissions later on. Download: [removed] Also if you want to buy me a doughnut, click: Here.
No offense meant, but this since about 30% of plugin tutorials guide you through the process of creating this exact plugin, and since you have no other plugins to your name, this seems like it may be a direct copy off of one of the aforementioned tutorials.
No its not i didn't even know there were official ones I looked at a video on how to make the client send packets to the server and vice versa i already know how i can link my single player mod if you want. But I only looked on how to send packets and that's it.