How to spawn a new FallingDiamondBlock

[Kloonder]

I want to spawn such an cool block how these adventure maps can, when they spawn for example a falling diamond Block

 

I tried this:

 

EntityFallingBlock entityfallingblock = new EntityFallingBlock(world, (double)pos.getX() + 0.5D, (double)pos.getY(), (double)pos.getZ() + 0.5D, world.getBlockState(pos));
	world.spawnEntityInWorld(entityfallingblock);

 

Its just a copy of the code in the BlockSand, but it doesn't work, it won't get spawned

[JimiIT92]

Try doing a block that extends BlockSand but looks like a Diamond block and has same resistance and hardness

[Draco18s]

You shouldn't need to extend BlockSand.  My guess is that you're trying to spawn the entity client-side, as opposed to server-side.