Jump to content

Find Entity at coordinates XYZ


kc9zda

Recommended Posts

Hello, I want to find an Entity at a set of coordinates specified. I need will need to access the fields of that Entity class. I am already using World.getClosestPlayer(X,Y,Z,4.0), but I don't want to access an Entity standing behind me. I have code written to try to figure out if that Entity is standing in view by comparing it to my look vector, but I don't think that the look vector would work completely. Is there some world function that finds the Entity at XYZ Coordinates and returns a reference to that Entity?

Link to comment
Share on other sites

player.getLookVec()?

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

Link to comment
Share on other sites

Hi

 

You can get all entities within a certain x,y,z range by defining an AxisAlignedBoundingBox and calling the function below

 

Snippet taken from EntityLiving.onLivingUpdate::

            List list = this.worldObj.getEntitiesWithinAABB(EntityItem.class, this.boundingBox.expand(1.0D, 0.0D, 1.0D));

 

You can tell if an entity is behind the player by:

1) calculating the direction vector from the player to the entity

2) calculating the dot product of this vector with the player's look vector

3) if the dot product is negative, the entity is behind the player.

 

Let us know if you need more help?

 

-TGG

 

 

Link to comment
Share on other sites

You can offset AABBs by the look vector so that the AABB is only in front of the player.

 

It's like f*cking magic.

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.