As stated, I would like to know a method to know what blocks are in a radius

So that I can do something special for them.

Hi

 

This link about blocks might help.

http://greyminecraftcoder.blogspot.co.at/2014/12/blocks-18.html

Edit: Actually, that link is for 1.8.  So it might be a bit confusing.  1.7.10 doesn't have block states, it has getBlock and getBlockMetadata (0-15) instead.  But the picture is still correct.

 

Basic idea:

1) use for loops to iterate over a cube in x, y, z centred on the player's current location [xp, yp, zp].

2) at each [x,y,z], calculate the squared distance from the player's [xp,yp,zp].  If the squared distance is less than radius*radius, your [x,y,z] is within radius of the player, so then use World.getBlock(x,y,z) to retrieve the block at that location.

 

-TGG

Now I have a list with target Blocks.

Then I should proceed to:

How to get position of those Blocks?

Now I have a list with target Blocks.

Then I should proceed to:

How to get position of those Blocks?

 

You should save the coordinates found too.  Use a custom class that stores both the block and its position, and keep a list of those.

You don't need a cusstom class if you are just getting each of the blocks by using three neseted for loops. You would already have their coordinates, the three different variables from each of the for loops.

You don't need a cusstom class if you are just getting each of the blocks by using three neseted for loops. You would already have their coordinates, the three different variables from each of the for loops.

 

It depends on what he's doing.  If you're doing something "right now because you're looking at this block" then no.  If you're doing something like "get me a list of all the valid locations matching X criteria" and picking one (or more) at random/via sorting algorithm, etc. then yeah, you should use a custom class.

Yeah, what Draco said.