Pre rewrite/fabric/1.21.1 masa#979

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PunChen wants to merge 9 commits intomaruohon:pre-rewrite/fabric/1.21.1-masafrom

PunChen:pre-rewrite/fabric/1.21.1-masa

Commits on May 10, 2025

Commits on May 12, 2025

add complex mode
PunChen
committed

Commits on May 13, 2025

add complex mode
PunChen
committed

Commits on May 16, 2025

remove complex mode due to litematica printer only use normal mode
PunChen
committed
add special mode to normal mode to generate circle and round-- todo optimize circle mode
PunChen
committed

Commits on May 17, 2025

use more efficiency algorithm, but can not use two circles for iron wall
PunChen
committed

Commits on May 18, 2025