mojira.dev
MCPE-180074

"minecraft:damage" component value uses signed 16-bit integer

According to the [official docs|https://learn.microsoft.com/en-us/minecraft/creator/reference/content/itemreference/examples/itemcomponents/minecraft_damage?view=minecraft-bedrock-stable] the "minecraft:damage" component supports an integer type. However, upon further testing, it seems to be using a signed 16-bit integer. This causes certain ranges of values to appear as negative which causes the Bedrock Engine to think the value is a negative number, even if the value is a positive number.

This occurs due to the 2's complements for 16-bit integer. The negative ranges formula is, inclusive beginning and exclusive ending where x can be any arbitrary number.

[256*(256x+128), 256*(256(x+1)))

As an example, if x is 0, the range for negative values are [32768, 65536) which the below reproduction method below supports

Reproduce:

  • Download the attached pack below

  • Import the pack into Preview 1.20.80.23

  • Enable the Content Log GUI by going to Settings > Creator > Enable Content Log GUI

  • Give yourself the following items:

    • mojira:damage_32767

    • mojira:damage_32768

    • mojira:damage_32769

    • mojira:damage_65536

  • Open your inventory and hover over the items

Expected Result:

  • mojira:damage_32767 should have a "+255 attack damage" tooltip due to a related bug(MCPE-180073)

  • mojira:damage_32768 should have no "attack damage" tooltip due to a related bug(MCPE-180073)

  • mojira:damage_32769 should have a "+1 attack damage" tooltip due to a related bug(MCPE-180073)

  • mojira:damage_32769 should have no "attack damage" tooltip due to a related bug(MCPE-180073)

Actual Result:

  • mojira:damage_32767 has a "+255 attack damage" tooltip. The item does parse correctly.

  • mojira:damage_32768 throws a content log error. The item does not parse correctly thus rendering the item broken.

  • mojira:damage_32769 throws a content log error. The item does not parse correctly thus rendering the item broken.

  • mojira:damage_65536 has no "attack damage" tooltip. The item does parse correctly.

  • For the items that do not parse correctly, a message in the Content Log should appear matching the screenshot attached below

Linked issues

Attachments

Comments 1

This is essentially an extension of your previous report (MCPE-180073).
Please just add this information to that report. There is no need to track separately.

SmokeyStack

(Unassigned)

Unconfirmed

Windows

1.20.80.23 Preview

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