Only create Ender Air Bottles when aiming at nothing

[unilock]

Some mods add features that rely on using empty Glass Bottles on blocks, not just fluids.

This commit allows that to happen by only creating Ender Air Bottles when the player is aiming at nothing - not a block or a fluid.

PR #4327 implemented something similar, but would only check for fluids; Ender Air Bottles would still be created if looking at any block.

Fixes #4273.

[artemisSystem]

Thanks for contributing!

The more i've been thinking about this issue, the more i feel like we should just have a dedicated empty ender air bottle item, and not use vanilla's glass bottles. However, it would be a bit annoying to add an item just for this, so i'm actually unsure. @williewillus, any thoughts on this?

[williewillus]

artemisSystem ***@***.***> writes:

The more i've been thinking about this issue, the more i feel like we should just have a dedicated empty ender air bottle item, and not use vanilla's glass bottles. However, it would be a bit annoying to add an item just for this, so i'm actually unsure. @williewillus, any thoughts on this?

I'd be fine with the idea of using the Botania brew vials/flasks for this. A new dedicated item seems a bit much.

[artemisSystem]

I was also thinking about those. i'm assuming your thought then was also that vials and flasks could be filled with 4 and 6 ender air each (if using them once in the end turned them into an ender air item, that'd be quite expensive, no?) but then, how do you throw them? if you're collecting them in a dispenser, should it fill until it's full, then throw if it's already full? Would the remainder be annoying to work with wrt. autocrafting? much to consider

[800020h]

mana glass is cheap enough for 1 vial to be 1 ender air