[MC-98222] Bows/Arrows do not work correctly with levitation levels 128-255.

When the player is given the levitation effect with a strength of 128 to 255 (aka downward motion) arrows shot from bows do not work correctly. They are created several blocks (7-ish?) above the player and are often given inverted motion to what is normal. To replicate enter '/effect @p minecraft:levitation 15 255' and shoot a bow.

Related issues

duplicates

MC-10755 Effects with amplifiers over 4 (level V)/enchantments with level over max default value are not supported

Comments

kumasasa 2016-02-28T01:43:41Z

Effects with amplifiers over 4 are not supported

migrated 2016-02-28T02:03:28Z

That's... extremely unfortunate... 😞

In my opinion major bugs such as this should be addressed. This breaks many potential concepts.

kumasasa 2016-02-28T02:13:22Z

This is no bug.
Amplifiers are - deliberately - not capped at 4, you may use it, but you'll have to face the consequences.

migrated 2016-02-28T02:20:42Z

Are you able to explain to me how it handles amplifiers above 4? Is the downward levitation beyond level 128 (and other various features, such as jump boost that disables jumping at a specific amplifier) not intentional?

kumasasa 2016-02-28T02:28:35Z

Are you able to explain to me how it handles amplifiers above 4?

It's casting a unsigned byte to a signed byte/int.

Is the downward levitation beyond level 128 (and other various features, such as jump boost that disables jumping at a specific amplifier) not intentional?

It's not intentional, it's a side effect caused by the above mentioned byte underflow (128 unsigned = -127 signed)

migrated 2016-02-28T02:32:54Z

Alright, fair enough...

migrated 2016-03-15T03:15:26Z

Seeing as using "high" amplifiers is now considered a 'feature' used by the map making community, I have to say that I think marking this as a duplicate of a 2013 bug is the wrong action.

I get that high amplifiers may have strange effects on the player (negative levitation in this case) - but the bug here is the behaviour of the arrows, not the player.

Can this be reconsidered? Lot's of custom maps will want to use negative levitation. Being unable to use a bow/arrow with this is really unfortunate.

kumasasa 2016-03-15T07:08:52Z

As already said, the valid range of amplifiers is 0 to 4. Everything else has to be taken as is.

Regardless of that this site is for bug reports only. For feature suggestions or changes please see: Minecraft Suggestions on Reddit.

migrated 2016-03-15T07:39:23Z

OK. Thanks anyway! To be clear I wasn't suggesting any new features. It's just that it wouldn't be the first time an unintended behaviour was adopted as a feature.

Thanks, and keep up the good work!