📎 Link#

bs.link:_

Link positions and orientations between entities and create coherent entity structures!

🔧 Functions#

You can find below all the function available in this module.

Create link#

As to at

bs.link:create_link_ata

In the same way as create_link_to_target_id, this function creates a link between the entity executing the function and the entity closest to the execution position.

Inputs

(execution) as <entities>: The link lead on a parent-child relation. The executing (source) entity must be the child.
(execution) at <entity> or positioned <x> <y> <z>: The execution position is the position of the parent entity (the function will take the nearest entity).

Outputs

(score) @s bs.link.r[x,y,z,h,v]: Representing the relative coordinates (position + orientation)
(score) @s bs.link.l[x,y,z]: Representing local coordinates (position only)
(score) @s bs.link.to: Identifies the entity to which it is linked

Example

Link all armor_stand to the nearest sheep

# Once
execute as @e[type=armor_stand] at @e[type=sheep,limit=1,sort=nearest] run function bs.link:create_link_ata

# See the result
# In loop
execute as @e[type=armor_stand] run function glib_debug:link/display_link

To target ID

bs.link:create_link_tti

Create a link between two entities : compute relative and local position and orientation in order to manipulate them later.

Inputs

(execution) as <entities>: The link lead on a parent-child relation. The executing (source) entity must be the child.
(score) @s bs.id.target: Score of the executing entity must match the bs.id score of the entity to which it will be linked. Multiple entities can be linked to a single entity (generally recommended for armor_stand structures).

Outputs

(score) @s bs.link.r[x,y,z,h,v]: Representing the relative coordinates (position + orientation)
(score) @s bs.link.l[x,y,z]: Representing local coordinates (position only)
(score) @s bs.link.to: Identifies the entity to which it is linked

Example

Link all armor_stand to the entity with ID 3 (see the bs.id module to know how to assign an ID to an entity)

# Once
scorebaord players set @e[type=armor_stand] bs.id.target 3
execute as @e[type=armor_stand] run function bs.link:create_link_tti

# See the result
# In loop
execute as @e[type=armor_stand] run function glib_debug:link/display_link

Note

The output scores should generally not be directly modified because they are used as parameters for other link functions. It is then recommanded to only use the bookshelf function to modify these scores.

Dependencies

This function require the following modules to work properly:

Credits: Leirof

Imitate location#

All directions

bs.link:imitate_loc

Allows to replace the entity at its relative position. This operation repeated in a loop is to imitate the movements of the parent entity.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.r[x,y,z]: Representing the relative coordinates (position only)

Outputs

(state) @s position: The entity is moved such as it maintain the relative position with the parent entity.

Example

Make armor_stands mimic your moves

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:imitate_loc

Along X

bs.link:imitate_loc_x

Allows to replace the entity at its relative position along the X axis. This operation repeated in a loop is to imitate the movements of the parent entity on the X ais.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.rx: Representing the relative coordinates (position only)

Outputs

(state) @s position: The entity is moved such as it maintain the relative position with the parent entity along the X axis.

Example

Make armor_stands mimic your moves on X axis

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:imitate_loc_x

Along Y

bs.link:imitate_loc_y

Allows to replace the entity at its relative position along the Y axis. This operation repeated in a loop is to imitate the movements of the parent entity on the Y axis.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.ry: Representing the relative coordinates (position only)

Outputs

(state) @s position: The entity is moved such as it maintain the relative position with the parent entity along the Y axis.

Example

Make armor_stands mimic your moves on Y axis

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:imitate_loc_y

Along Z

bs.link:imitate_loc_z

Allows to replace the entity at its relative position along the Z axis. This operation repeated in a loop is to imitate the movements of the parent entity on the Z axis.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.rz: Representing the relative coordinates (position only)

Outputs

(state) @s position: The entity is moved such as it maintain the relative position with the parent entity along the Z axis.

Example

Make armor_stands mimic your moves on Z axis

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:imitate_loc_z

🎬 Watch a demo

Dependencies

This function require the following modules to work properly:

Credits: Leirof

Imitate orientation#

Both angles

bs.link:immitate_ori

Allows to replace the entity to its relative orientation. This operation repeated in a loop is to imitate the rotations of the parent entity.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.r[h,v]: Representing the horizontal and vertical relative orientation (rotation only)

Outputs

(state) @s orientation: The entity is rotated such as it maintain the relative orientation with the parent entity.

Example

Make armor_stands mimic your orientation changes

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:imitate_ori

Horizontal angle

bs.link:immitate_ori_h

Allows to replace the entity to its relative horizontal orientation. This operation repeated in a loop is to imitate the rotations of the parent entity on the horizontal axis.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.rh: Representing the horizontal relative orientation (rotation only)

Outputs

(state) @s orientation: The entity is rotated such as it maintain the relative orientation with the parent entity on the horizontal axis.

Example

Make armor_stands mimic your orientation changes on the horizontal axis

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:imitate_ori_h

Vertical angle

bs.link:immitate_ori_v

Allows to replace the entity to its relative vertical orientation. This operation repeated in a loop is to imitate the rotations of the parent entity on the vertical axis.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.rv: Representing the vertical relative orientation (rotation only)

Outputs

(state) @s orientation: The entity is rotated such as it maintain the relative orientation with the parent entity on the vertical axis.

Example

Make armor_stands mimic your orientation changes on the vertical axis

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:imitate_ori_v

Dependencies

This function require the following modules to work properly:

Credits: Leirof

Keep local location#

bs.link:keep_local_location

Allows to keep the local position corresponding to the position of the child entity in the repository of the parent entity.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.l[x,y,z]: Representing the local coordinates (position only)

Outputs

(state) @s position: The entity is moved such as it maintain the local position with the parent entity.

Example

Make the armor_stands lock to your orientation

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:keep_local_location

🎬 Watch a demo

Dependencies

This function require the following modules to work properly:

How does it work?

This reference frame, unlike the relative coordinates, takes into account the orientation of the entity. Thus, when the parent entity turns on itself, the child entity will turn around it keeping its distance and the angle formed between the direction of the parent entity’s look and the parent->child vector.

Credits: Leirof

Reverse location#

All directions

bs.link:reverse_loc

Allows to determine the displacement made by the parent entity, and reproduce it in the opposite direction.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.r[x,y,z]: Representing the relative coordinates (position only)

Outputs

(state) @s position: The entity is moved opposingly to the movements of the parent entity.

Example

Make the armor_stands do the opposite of your moves

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:reverse_loc

Along X

bs.link:reverse_loc_x

Allows to determine the displacement made by the parent entity along the X axis, and reproduce it in the opposite direction.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.rx: Representing the relative coordinates (position only)

Outputs

(state) @s position: The entity is moved opposingly to the movements of the parent entity along the X axis.

Example

Make the armor_stands do the opposite of your moves along the X axis

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:reverse_loc_x

Along Y

bs.link:reverse_loc_y

Allows to determine the displacement made by the parent entity along the Y axis, and reproduce it in the opposite direction.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.ry: Representing the relative coordinates (position only)

Outputs

(state) @s position: The entity is moved opposingly to the movements of the parent entity along the Y axis.

Example

Make the armor_stands do the opposite of your moves along the Y axis

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:reverse_loc_y

Along Z

bs.link:reverse_loc_z

Allows to determine the displacement made by the parent entity along the Z axis, and reproduce it in the opposite direction.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.rz: Representing the relative coordinates (position only)

Outputs

(state) @s position: The entity is moved opposingly to the movements of the parent entity along the Z axis.

Example

Make the armor_stands do the opposite of your moves along the Z axis

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:reverse_loc_z

Dependencies

This function require the following modules to work properly:

Credits: Leirof

Reverse orientation#

Both angles

bs.link:reverse_ori

Allows you to determine the rotation performed by the parent entity, and reproduce it in the opposite direction.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.r[h,v]: Representing the relative orientation (rotation only)

Outputs

(state) @s rotation: The entity is rotated opposingly to the rotations of the parent entity.

Example

Make the armor_stands invert your rotations

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:reverse_ori

Horizontal angle

bs.link:reverse_ori_h

Allows you to determine the rotation performed by the parent entity along the horizontal axis, and reproduce it in the opposite direction.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.rh: Representing the relative orientation (rotation only)

Outputs

(state) @s rotation: The entity is rotated opposingly to the rotations of the parent entity along the horizontal axis.

Example

Make the armor_stands invert your rotations along the horizontal axis

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:reverse_ori_h

Vertical angle

bs.link:reverse_ori_v

Allows you to determine the rotation performed by the parent entity along the vertical axis, and reproduce it in the opposite direction.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.
(score) @s bs.link.rv: Representing the relative orientation (rotation only)

Outputs

(state) @s rotation: The entity is rotated opposingly to the rotations of the parent entity along the vertical axis.

Example

Make the armor_stands invert your rotations along the vertical axis

# Once
execute as @e[type=armor_stand] at @s run function bs.link:create_link_ata

# In a loop
execute as @e[type=armor_stand,tag=bs.linked] run function bs.link:reverse_ori_v

Dependencies

This function require the following modules to work properly:

Credits: Leirof

Update link#

bs.link:update_link

This function allows to update the link between entities. If you only use immitation and/or local position keeping functions, this function will not be of any use to you. On the other hand, if you change the position of the child entity automatically, you will have to update the link so that your operation is not cancelled the next time you call the link function.

Automatically updated

The link functions of the lib automatically call the update functions if necessary (example: reverse functions). No need to manage this on your side.

Inputs

(execution) as <entities>: The executing entity must be linked to another entity.

Outputs

(score) @s bs.link.r[h,v]: Representing the relative orientation (rotation only)
(score) @s bs.link.r[x,y,z]: Representing the relative coordinates (position only)
(score) @s bs.link.l[x,y,z]: Representing the local coordinates (position only)

Example

Update the armor_stands link

# Once
execute as @e[type=armor_stand] run function bs.link:update_link

# See the result
# In a loop
execute as @e[tag=bs.linked] run function glib_debug:link/display_link

Dependencies

This function require the following modules to work properly:

Credits: Leirof

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