Solved Modifying EntityFallingBlock

I want to make a custom falling block that does damage when it hits entites, and when it does, the falling block will disappear.
https://github.com/Bukkit/mc-dev/blob/master/net/minecraft/server/EntityFallingBlock.java

I was looking into EntityFallingBlock and there is an option to make this possible, but I don't know how to modify it. Can anyone help me?

 

Damage nearby entity on a repeating task, remove the falling block when doing so

 

I was doing that, but I think it consumes so much RAM... :/

 

If that takes up a lot of RAM then either you have little to none to begin with or you've coded it very inefficiently

Edit: You're probably not canceling the task when the damage takes place, leaving it in there forever.
Map<Integer, FallingBlock> where integer is the task id, cancel it when the falling block is no longer valid

 

Actually, I did it right and without Map<>. I just think that with a lot of it will consume RAM.

I use this to launch a new fallingblock:

EDIT:

Anyway, I solved this.
Thanks.