I'm trying to generate lava springs that flow (e.g. single source blocks of lava that pour down mountainsides) but unfortunately whenever I create such lava springs they just stand still like this:

How would I fix it, or cause it to flow by itself (preferably have it finish flowing by the time it comes into view, if that's even possible).

I think you have to call world#notifyBlockUpdate or a similar method

How exactly would I do that?

Here is my current code in the biome decorator class:

 

BlockPos spoutTop = new BlockPos(x, y, z);
IBlockState lava = Blocks.LAVA.getDefaultState();

world.setBlockState(spoutTop, lava);
world.notifyBlockUpdate(spoutTop, lava, lava, 0);
System.out.println(spoutTop);

I have verified that spoutTop does indeed contain a lava block in-game, but it stands still like in the screenshots above.

 

Would prefer it to have already flown down all the way, but not sure if that's possible.

 

Edited January 22, 20196 yr by lightningdragonx5

You might want to look at the flags in notifyBlockUpdate, I don’t think 0 is what you want

31 minutes ago, Cadiboo said:

You might want to look at the flags in notifyBlockUpdate, I don’t think 0 is what you want

Tried it with flags 0, 1, 2, 3, still nothing.

Never mind, fixed. Apparently I had to use FLOWING_LAVA instead of LAVA.

Edited January 22, 20196 yr by lightningdragonx5