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Fix mechanical arm animation in ponder#10161

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JensenJ wants to merge 1 commit intoCreators-of-Create:mc1.21.1/devfrom
JensenJ-Modding:mc1.21.1/arm-ponder-fix
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Fix mechanical arm animation in ponder#10161
JensenJ wants to merge 1 commit intoCreators-of-Create:mc1.21.1/devfrom
JensenJ-Modding:mc1.21.1/arm-ponder-fix

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@JensenJ JensenJ commented Apr 13, 2026

Hi there,

This fixes #8925.

In my testing removing this check has no negative consequences (aside from a little extra computation), but I might be overlooking or misunderstanding something about what this check does.

Basically the cause of the bug was that when we read the new target data from NBT (which ponder relies on when setting instructions), the previous target and existing angle are not taken into account as this check skips their calculation. The arm then assumes it is starting from it's default rotation (as the previous angle is never set), and thus snaps back.

Thanks

@VoidLeech VoidLeech added pr type: fix PR fixes a bug pr flag: simple PR has minimal changes labels Apr 13, 2026
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Mechanical Arm ponders do not animate correctly

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