Class BlockRotationUtil

java.lang.Object

com.hypixel.hytale.server.core.universe.world.chunk.BlockRotationUtil

public class BlockRotationUtil
extends Object

Constructor Summary

Constructors

Constructor	Description
BlockRotationUtil()

Method Summary

Modifier and Type	Method	Description
static RotationTuple	getFlipped(RotationTuple blockRotation, BlockFlipType flipType, Axis axis)	Computes the flipped rotation for a block reflected across the given axis.
static int	getFlippedFiller(int filler, Axis axis, BlockBoundingBoxes.RotatedVariantBoxes from, BlockBoundingBoxes.RotatedVariantBoxes to)	Computes the filler offset of a cell after the multi-cell block it belongs to is mirrored across axis.
static RotationTuple	getRotated(RotationTuple blockRotation, Axis axis, Rotation rotation, VariantRotation variantRotation)
static int	getRotatedFiller(int filler, Axis axis, Rotation rotation)
static int	getRotatedFiller(int filler, RotationTuple rotation)

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

BlockRotationUtil

public BlockRotationUtil()

Method Details

getFlipped

@Nullable
public static RotationTuple getFlipped(@Nonnull
 RotationTuple blockRotation,
 @Nullable
 BlockFlipType flipType,
 @Nonnull
 Axis axis)

Computes the flipped rotation for a block reflected across the given axis. For blocks with a BlockFlipType, uses a matrix-based approach: Build the rotation matrix M (Ry*Rx*Rz, matching the rendering convention) Reflect across the flip axis: negate the corresponding row of M Apply a local chirality correction (right-multiply by C) to convert the improper rotation back to a proper rotation Decompose back to Euler angles For blocks without a flip type, uses a direct Euler-angle flip.

getRotated

@Nullable
public static RotationTuple getRotated(@Nonnull
 RotationTuple blockRotation,
 @Nonnull
 Axis axis,
 Rotation rotation,
 @Nonnull
 VariantRotation variantRotation)

getFlippedFiller

public static int getFlippedFiller(int filler,
 @Nonnull
 Axis axis,
 @Nonnull
 BlockBoundingBoxes.RotatedVariantBoxes from,
 @Nonnull
 BlockBoundingBoxes.RotatedVariantBoxes to)

Computes the filler offset of a cell after the multi-cell block it belongs to is mirrored across axis.

A multi-cell block stores every cell as an offset from its base cell, and the offsets a rotation allows come from the hitbox of that rotation. A mirror moves the base cell to the opposite end of the footprint, so the offsets are mirrored and then re-anchored: the mirrored footprint is aligned with the footprint of the flipped rotation, and each cell keeps its offset from that shared corner.

Parameters:

from - the footprint of the rotation the block had

to - the footprint of the rotation the block has after the flip

getRotatedFiller

public static int getRotatedFiller(int filler,
 @Nonnull
 Axis axis,
 Rotation rotation)

getRotatedFiller

public static int getRotatedFiller(int filler,
 @Nonnull
 RotationTuple rotation)