Hello, quick:

How can I edit Break Speed for SPECIFIC player?

Hardness of block will depend on y coordinte (depth of world).

All Pickaxes/GenericBlocks (stone too) are made by me and vanilia ones have been overriden so I can edit whole code.

Also: getCurrentPlayerStrVsBlock() is not good here since it uses efficiency which is kinda lame solution :C

net.minecraft.entity.player.EntityPlayer (if anyone is interested)

 

Or maybe I am wrong? Maybe you could explain to me how it works and get my facts straight.

Well... How can I implement this Event into Block code?

Let's say i want to Make block that (pseudocode):

	this.Hardness = 1.0F;
@Override
public void onBlockClicked(World world, int x, int y, int z, EntityPlayer player) //TODO HARDNESS
{	
	//Gets y parameter of clicked block and performs an action that calls:
	PlayerEvent.BreakSpeed...
	{
		addModifierToBreakSpeed() //which will take actuall BreakSpeed (which is dependent on this.Hardness and Tool Efficiency) and multiply it depending on y coord
	}
}