filament 1.3.10 for 1.21.1 and 1.21.10

New features

• Stairs block behaviour for custom stairs! Thanks to @flameddogo99

Fixes

• Minor bugfixes
• Fixes a crash on server stop

This 1.21.1 version is a backport of the 1.3.x versions of filament. It's 99% feature complete with the 1.21.10 with a handful of exceptions:

• The forcefor particle emitter block behaviour has no effect
• Custom TNT's explosion power is not configurable
• No per-player animation
• Damage-source for custom maces might be incorrect

Some of the new features if you update from 0.14:

• Oxidizable blocks and decorations
• Custom animated chests and double chests with custom container sizes
• Item-based backpacks for any items through the filament:backpack component
• Connectable furniture
• Fire blocks
• Custom tridents
• Behaviours that run commands or particle effects when a players enter its radius
• Sign behaviour for custom signs with multiple lines and elements

And much more!

Migration:

Old datapacks / content-packs that were made for 0.14.x and later should still work.

A few fields were deprecated but will still work:

• virtual in the config for blocks is now a field in the properties instead of the root object
• The "waterloggable" property is now a block-behaviour
• The "rotate" and "rotate_smooth" fields are now handled through behaviours, you can use the rotate behaviour with the smooth option set to true for 45° interval rotations or use horizontal_facing for 90° rotations.

All block behaviours are compatible with decorations as of 1.x!

For optimization purposes / to reduce the total amount of block-states used by decorations you might want to use the horizontal_facing behaviour. It will only add 4 blockstates (1 for each direction) instead of 8 for each decoration.

There might have been some breaking API changes, in case you made custom behaviours! Please make a backup of your world or use a test environment to make sure you can roll back in case something breaks!