Get the nearest hostile mob

[Sjele]

I am trying to make a sort of shield type thing, that will kill all the closest hostile mobs within a 5 block circle. To do this I think i need to get the closet entity and then kill it, but how would i go about and find all or just the closest hostile entity within a 5 radius circle?

 

Thanks in advance

[Mazetar]

I guess you could look at the worldObj's loadedEntityList and search trough their positions to see if they are within the area and then do whatever you want with them?

 

There may be better ways of course, but I guess that's ONE way to do it

[Chibill]

You could get the positions and subtract the position of the player for there's and then see it they are less than 5 but not smaller then 0.

[Guff]

To find all of the hostile mobs within 5 blocks,

 

List<Entity> entities = world.getEntitiesWithinAABBExcludingEntity(player, player.boundingBox.expand(5.0D, 5.0D, 5.0D));

 

and then run through those and see which ones are hostile via instanceof. Then, if they are, entity.setDead().

[Mazetar]

  On 7/13/2013 at 9:50 PM, Guff said:

To find all of the hostile mobs within 5 blocks,

 

List<Entity> entities = world.getEntitiesWithinAABBExcludingEntity(player, player.boundingBox.expand(5.0D, 5.0D, 5.0D));

 

and then run through those and see which ones are hostile via instanceof. Then, if they are, entity.setDead().

 

That's probably the most efficient answer!

It's the one I would have used, so try it and thank the man

[Sjele]

  On 7/13/2013 at 9:50 PM, Guff said:

To find all of the hostile mobs within 5 blocks,

 

List<Entity> entities = world.getEntitiesWithinAABBExcludingEntity(player, player.boundingBox.expand(5.0D, 5.0D, 5.0D));

 

and then run through those and see which ones are hostile via instanceof. Then, if they are, entity.setDead().

Thanks but I think i did not make this clear, it's a block and not around the player. Sorry.

[Mazetar]

Then use the same principle just around the block instead of a player then?

[Guff]

  On 7/13/2013 at 10:27 PM, Sjele said:

Thanks but I think i did not make this clear, it's a block and not around the player. Sorry.

Assuming you have the block's coordinates i, j, k:

AxisAlignedBB aabb = AxisAlignedBB.getBoundingBoxFromPool(i - 5, j - 5, k - 5, i + 5, j + 5, k + 5);

 

Then just use the same thing I showed you before.

[Sjele]

  On 7/14/2013 at 5:38 PM, Guff said:

  Quote

Thanks but I think i did not make this clear, it's a block and not around the player. Sorry.

Assuming you have the block's coordinates i, j, k:

AxisAlignedBB aabb = AxisAlignedBB.getBoundingBoxFromPool(i - 5, j - 5, k - 5, i + 5, j + 5, k + 5);

 

Then just use the same thing I showed you before.

 

I need to tick the block to check if there are any near by mobs, i read somewhere i should use a tile entity for this? Should i do that or should i use the built in methods in Block class?

[Guff]

Use a Tile Entity, since they are updated every tick. Block's randomDisplayTick() is not ideal since it is just that; random.

[Sjele]

Thank you so much! Now I just need to read up on how to use tile entites, I'll spend some time reading, if i can't get it working i'll ask again , thanks

[Guff]

You're welcome.