Forge alone with no further mod installed changes moving block (block 36) behavior.

In vanilla block 36 has 0 blast resistance and 100% drop rate, with Forge my TNT powered farms are ruined, block 36 still has 0 blast resistance but block drop rate returned to 30% from my testing.

This has been the case for a long time, at least mc1.5.2 when I started playing minecraft.

Is there something I can do to prevent this, is this an attended behavior ? a bug ?

Thanks for the answer.

You precision is welcome, but yet forge somehow badly modifies the return rate of the block being moved, that's easy to check by synching TNT blast with pistons.

Sure, good idea.

Here is my TNT powered cobble farm I extracted from my survival with worldedit schematic.

I put explanatory signs for you, pull the lever on the lapis block and see

 

https://dl.dropboxusercontent.com/u/20229471/1_9_4%20TNT%20powered%20cobblegen.zip

That's a heavily parallelized cobblestone generator.

There's nothing to debug at all, I know my redstone and it is fully working since years.

You just have to push the lever and count the cobblestone produced per blast both in vanilla and forged minecraft and see it's a 3 to 1 ratio, signs say it all. I will make a very simple version of it but it will be slower to note the difference.

Ok I realize I wasn't clear enough on the game mechanic involved here, it's not so well known. What this machine does is:

 

step 1: produce a lot of cobblestone

step 2: ignite a tnt

step 3: in the same game tick the tnt blast, push the cobblestone toward it.

 

This way cobblestone is turned to block 36 type cobblestone block, which has no blast resistance and 100% drop rate. You get more than 3 stacks of cobblestone per TNT, awesome compared to blasting a TNT inside a cobblestone cube where you'll get something lame like 16 items. The same principle works for a wood farm for instance.

I'm making a very simple (but slower) contraption to show you.

Updated to:

 

https://dl.dropboxusercontent.com/u/20229471/1_9_4%20TNT%20powered%20cobblegen.zip

 

alongside my "monster" there's a very simple contraption:

push the button and observe how the pushed cobblestone block loot each time in vanilla while it doesn't with forge.

Glad we finally understood each other.

Don't know if this is a bug or an intended behavior, but this has been in the game for years: I made the contraption I showed you in 1.5.2 ...

Thanks for the pullrequest.

I saw you patched 1.10.2, I tried it and it works as expected now.

Will you also patch 1.9.4 since this is the version I primarily reported for ?