Fixed respawn anchor explode blocks underwater

[b1zeyofficial]

As per title

Related issues & PRs

• Fixes Respawn Anchor explodes underwater #6716

Behavioural changes

i think the servers behavior shouldnt change, but need to check

Tests

https://www.youtube.com/watch?v=FK-LLQQMVEo

[dktapps]

Why isn't this checking the down face?

[b1zeyofficial]

I seem to have forgotten that the Java code checks for water under each horizontal block, since the existing code is similar to vanilla behavior.

P.S:
Apparently we should only check for horizontal blocks and not the Respawn Anchor itself, im confused

	private static boolean isWaterThatWouldFlow(BlockPos blockPos, Level level) {
		FluidState fluidState = level.getFluidState(blockPos);
		if (!fluidState.is(FluidTags.WATER)) {
			return false;
		} else if (fluidState.isSource()) {
			return true;
		} else {
			float f = fluidState.getAmount();
			if (f < 2.0F) {
				return false;
			} else {
				FluidState fluidState2 = level.getFluidState(blockPos.below());
				return !fluidState2.is(FluidTags.WATER);
			}
		}
	}
	
	private void explode(BlockState blockState, Level level, BlockPos blockPos) {
		level.removeBlock(blockPos, false);
		boolean bl = Direction.Plane.HORIZONTAL.stream().map(blockPos::relative).anyMatch(blockPosx -> isWaterThatWouldFlow(blockPosx, level));

[b1zeyofficial]

It doesnt really mimic vanilla behavior, for example, when water flows and a respawn anchor is placed in place, it doesnt explode blocks like it does in vanilla. Can we measure the fluidity of water using the Liquid->getDecay method?

[dktapps]

Yes, but decay is opposite to the fluid height. 0 is source, 7 is the shallowest.

[b1zeyofficial]

everything remained the same, only the style changed and a couple of changes, it seems like I check that decay >= 1 but it still explodes after only 2 streams, maybe I miscalculated somewhere?
I also removed instanceof Liquid because we dont want lava to be able to somehow muffle the anchor's explosion, do we?