Backpack

Get wearable backpacks for your PocketMine-MP server! Supports custom models and textures!

Features

• ✅ Supports custom geometry and skin files, for example made in BlockBench
• ⚔ Does not interfere with PvP and additionally stops the use of KillAura [¹]
• 💻 Easily modifiable and configurable
• ⚖ Permission sets for every available design
• 💾 Minimal disk space usage due to savefiles in NBT format [²]
• 📏 Automatically updates scale in relation to the player's scale. You have baby sized players on your server? No problem!
• 👻 Hidden when the player is invisible or dead
• 💎 27 extra slots to fill up with your precious goods
• 👨🏻‍💻 Simple to use commands - /backpack Puts down the backpack to make it's contents accessible
• 💼 Can be opened by hitting the backpack entity
• 🔐 Only accessible by the owner of the backpack
• 🦸‍♂️ Immune to any impacts, as fire, explosions and player damage
• 👪 Easy way to add roleplaying and survival fun

Screenshots

Commands

Command	Description	Permission
/backpack	Toggle between wearing and accessing the backpack	backpack.command
/backpack create [design]	Creates a backpack for the sender	backpack.command
/backpack design <design>	Switches to another design	backpack.command
/backpack get	Gives an item that when dropped puts on the backpack	backpack.command

Special permissions

By setting up permissions in the style of backpack.type.FILENAME you can make cool and exclusive designs available to specific users and groups.

Example for permissions:

• For the file default.json the permission would result in backpack.type.default
• By giving the backpack.type permission all designs will be accessible

Creating new models and textures

For creating the entities i suggest using BlockBench, a free modeling program for Minecraft with included painting tools. It can also be ran in the browser and is mobile/touch friendly.

Some things must be given attention to when creating those models:

• I suggest importing a player model to have a visual preview of where you actually are putting the cubes at. You can toggle the visibility of the bones at any time, making it easy to tweak the positioning of cubes.
• Only the body bone/group may be used, since it is able to automatically align the backpack correctly, even when sneaking, swimming or elytra-flying. Cubes put into the body group to archive the best results.
• The pivot of the body bone/group must be at [0, 24, 0] to make sure the cubes align properly when sneaking
• Textures must be 64 * 32, 64 * 64 or 128 * 128 size. Other sizes won't render properly. Those are supported dimensions of a player skin (as of October 2019)
• BlockBench supports generating texture templates, which is a great time and headache savior, since it can also try to "compress" the texture file by putting smaller cube textures in the unused areas of bigger cubes.
• The geometry name must be geometry.backpack.FILENAME. The geometry file must be named FILENAME.json. The PNG texture file must be named FILENAME.png.

Planned features

• [ ] Database support for cross server backpack saving
• [ ] Optional UI for choosing the design of the backpack (alongside the /backpack design command)
• [ ] Translations
• [ ] Restrictions for allowing the use only in a set of worlds
• [ ] Colored messages

Notes

• To be able to run this plugin the gd extension must be installed and enabled. See this link 🖥 or this link 🐧 for information on how to enable it.

• This plugin utilizes the InvMenu virion, which must be installed alongside DEVirion when running from source

• Feel free to modify the plugin and contribute to the development (as long as you give credit 😉)! Pull requests are most welcome ☺

• [¹] Simple KillAura hacks can be disturbed by this plugin if poorly coded. The hack client will have a hard time figuring out if it is actually targeting a Player or a Human entity (which are used in this plugin), and probably will attack the backpacks instead 👍🏻

• [²] You can edit the NBT files via NBTExplorer, UniversalMinecraftEditor or similar programs with ease

Credits

A plugin by XenialDan, 2019

Many thanks to @Muqsit for helping with the data saving and to @CortexPE for his amazing Commando virion