[1.7.10]How to ensure world.setBlock successful?

[D0431791]

This problem may be found in many released mods.

The function world.setBlock is called by updateEntity function of a TileEntity.

I have tried the three set of codes below:

world.setBlock(x,y,z,Blocks.packed_ice);

world.setBlock(x,y,z,Blocks.packed_ice,0,2);

world.setBlock(x,y,z,Blocks.packed_ice,0,3);

However, sometimes world.setBlock is not successful.

When it is not successful, only the texture of the block changes, but the block is not changed; the player can right click the block to change the texture back.

 

I also have tried repeating setting block until the block is indeed changed, but it does not solve the problem.

 

What is the real solution on earth?

[coolAlias]

Sounds like you are setting the block on the client side - only ever call setBlock on the server side, i.e. when the world is not remote.

if (!worldObj.isRemote) {
  // logical server - okay to set block
  worldObj.setBlock(...);
}

[D0431791]

Sounds like you are setting the block on the client side - only ever call setBlock on the server side, i.e. when the world is not remote.

if (!worldObj.isRemote) {
  // logical server - okay to set block
  worldObj.setBlock(...);
}

I have tested the case setting a single block; it works fine.

 

However, the case swapping two blocks failed; neither blocks are changed.

		zbt=zb[i];
		zmt=zm[i];
		if(!world.isRemote){
			world.setBlock(zx[i],zy[i],zz[i],zb[j],zm[j],2);
			world.setBlock(zx[j],zy[j],zz[j],zbt,zmt,2);
		}

Is it solvable?

[coolAlias]

Your block of code doesn't show how you determine what each of those variables' values are, so I can't say for sure, but if neither block changed, then chances are the coordinates are not what you think they are - possibly you just got them backwards, i.e. setting each block to itself.