How is the mining speed of blocks determined?

 

I thought it was just based off the hardness, the harvestlevel, and the harvesttool. But I guess not because I noticed today:

• Cobblestone-> hardness: 2, harvest level: 0, harvest tool: pickaxe, harvest time: 10 seconds by hand
  
• Wood Planks-> hardness: 2, harvest level: 0, harvest tool: axe, harvest time: 3 seconds by hand
  

So there is obviously something more than just those 3 values...

Hi

 

These links will tell you more about mining speed of blocks than you ever knew you didn't want to know.

http://greyminecraftcoder.blogspot.ch/2015/01/mining-blocks-with-tools.html

http://greyminecraftcoder.blogspot.ch/2015/01/summary-of-logic-flow-when-mining-blocks.html

http://greyminecraftcoder.blogspot.ch/2015/01/calculating-rate-of-damage-when-mining.html

 

-TGG

Right, That all makes sense, but the damage per tic is clearly:

 

 

as per the links you sent me.

Which only depends on the player (who i'm not changing in any way), the block hardness, and canHarvestBlock which is weather the tool of the player matches the required tool of the block.

On the minecraft wiki at http://minecraft.gamepedia.com/Breaking#Blocks_by_hardness

it shows that both cobblestone and wood planks have a hardness of 2. They both require a wooden tool to mine, and yet they have different speeds when mined by hand... why?

The material.

 

Block block = (new Block(Material.rock)).setHardness(2.0F).setResistance(10.0F).setStepSound(soundTypePiston).setUnlocalizedName("stonebrick").setCreativeTab(CreativeTabs.tabBlock);

 

    public BlockPlanks()
    {
        super(Material.wood);
    }

Right, That all makes sense, but the damage per tic is clearly:

 

 

as per the links you sent me.

Which only depends on the player (who i'm not changing in any way), the block hardness, and canHarvestBlock which is weather the tool of the player matches the required tool of the block.

On the minecraft wiki at http://minecraft.gamepedia.com/Breaking#Blocks_by_hardness

it shows that both cobblestone and wood planks have a hardness of 2. They both require a wooden tool to mine, and yet they have different speeds when mined by hand... why?

 

It is in the equation.  You can harvest wood with your hand, but can not harvest cobblestone with your hand.  You can break both with your hand.  Since you can harvest wood with your hand the divisor is 30.  You can't harvest cobblestone, so the divisor is 100.  That is the difference.

Ahh.. Thank you so much. I had a suspicion it might be the material but some other modders assured me otherwise.

 

Is there a way to change the material of a block after the block has been created?

 

i.e. the material of a block changes when I right click it?

No, because the Block is a singleton and the material is a property of the block.

 

You would have to use a tile entity and calculate the player's relative break speed manually.  Which I had to do for a block because the tool I wanted to "harvest" it was not considered a tool (the hoe), so it had no efficiency values.