org.geysermc.connector.network.translators.collision

Class CollisionManager

java.lang.Object

org.geysermc.connector.network.translators.collision.CollisionManager

public class CollisionManager
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static double	COLLISION_TOLERANCE Additional space where blocks are checked, which is helpful for fixing NoCheatPlus's Passable check.

Constructor Summary

Constructors

Constructor and Description
CollisionManager(GeyserSession session)

Method Summary

Modifier and Type	Method and Description
com.nukkitx.math.vector.Vector3d	adjustBedrockPosition(com.nukkitx.math.vector.Vector3f bedrockPosition, boolean onGround) Adjust the Bedrock position before sending to the Java server to account for inaccuracies in movement between the two versions.
boolean	correctPlayerPosition() Returns false if the movement is invalid, and in this case it shouldn't be sent to the server and should be cancelled See BlockCollision.correctPosition(GeyserSession, BoundingBox) for more info
List<com.nukkitx.math.vector.Vector3i>	getCollidableBlocks(BoundingBox box)
List<com.nukkitx.math.vector.Vector3i>	getPlayerCollidableBlocks()
boolean	isPlayerInWater()
boolean	isUnderSlab()
void	recalculatePosition()
void	updatePlayerBoundingBox() Updates the stored bounding box without passing a position, which currently just changes the height depending on if the player is sneaking.
void	updatePlayerBoundingBox(com.nukkitx.math.vector.Vector3d position) Updates the stored bounding box
void	updatePlayerBoundingBox(com.nukkitx.math.vector.Vector3f position) Updates the stored bounding box
void	updateScaffoldingFlags(boolean updateMetadata) Updates scaffolding entity flags Scaffolding needs to be checked per-move since it's a flag in Bedrock but Java does it client-side

Methods inherited from class java.lang.Object

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

Field Detail

COLLISION_TOLERANCE

public static final double COLLISION_TOLERANCE

Additional space where blocks are checked, which is helpful for fixing NoCheatPlus's Passable check. This check doesn't allow players right up against the block, so they must be pushed slightly away.

See Also:

Constant Field Values

Constructor Detail

CollisionManager

public CollisionManager(GeyserSession session)

Method Detail

updatePlayerBoundingBox

public void updatePlayerBoundingBox(com.nukkitx.math.vector.Vector3f position)

Updates the stored bounding box

Parameters:

position - The new position of the player

updatePlayerBoundingBox

public void updatePlayerBoundingBox(com.nukkitx.math.vector.Vector3d position)

Updates the stored bounding box

Parameters:

position - The new position of the player

updatePlayerBoundingBox

public void updatePlayerBoundingBox()

Updates the stored bounding box without passing a position, which currently just changes the height depending on if the player is sneaking.

adjustBedrockPosition

public com.nukkitx.math.vector.Vector3d adjustBedrockPosition(com.nukkitx.math.vector.Vector3f bedrockPosition,
                                                              boolean onGround)

Adjust the Bedrock position before sending to the Java server to account for inaccuracies in movement between the two versions.

Parameters:

bedrockPosition - the current Bedrock position of the client

onGround - whether the Bedrock player is on the ground

Returns:

the position to send to the Java server, or null to cancel sending the packet

recalculatePosition

public void recalculatePosition()

getCollidableBlocks

public List<com.nukkitx.math.vector.Vector3i> getCollidableBlocks(BoundingBox box)

getPlayerCollidableBlocks

public List<com.nukkitx.math.vector.Vector3i> getPlayerCollidableBlocks()

correctPlayerPosition

public boolean correctPlayerPosition()

Returns false if the movement is invalid, and in this case it shouldn't be sent to the server and should be cancelled See BlockCollision.correctPosition(GeyserSession, BoundingBox) for more info

isUnderSlab

public boolean isUnderSlab()

Returns:

true if the block located at the player's floor position plus 1 would intersect with the player, were they not sneaking

isPlayerInWater

public boolean isPlayerInWater()

Returns:

if the player is currently in a water block

updateScaffoldingFlags

public void updateScaffoldingFlags(boolean updateMetadata)

Updates scaffolding entity flags Scaffolding needs to be checked per-move since it's a flag in Bedrock but Java does it client-side

Parameters:

updateMetadata - whether we should update metadata if something changed