Water and lava block blast resistance overrides should apply to their respective fluids too

[galacticwarrior9]

Not sure whether this should be classified as a bug report or feature request but I'll go with the latter.

Right now, lowering the blast resistance of water and lava blocks in the blast-resistance-overrides section of the Purpur config has no effect. That's because there are two sets of blast resistances affecting them:

• the value returned by Block#getExplosionResistance, which the blast-resistance-overrides config changes
• the value returned by Fluid#getExplosionResistance, which is hardcoded to be 100 in the WaterFluid and LavaFluid classes

    @Override
    protected float getExplosionResistance() {
        return 100.0F;
    }

In ExplosionDamageCalculator#getBlockExplosionResistance, we see that the effective blast resistance of these blocks will always be the highest of those two values, i.e. it can never be lower than 100.

    public Optional<Float> getBlockExplosionResistance(Explosion explosion, BlockGetter world, BlockPos pos, BlockState blockState, FluidState fluidState) {
        return blockState.isAir() && fluidState.isEmpty() ? Optional.empty() : Optional.of(Math.max(blockState.getBlock().getExplosionResistance(), fluidState.getExplosionResistance()));
    }

So the problem is that there is no way to reduce the blast resistance of water and lava using the current blast-resistance-overrides config. It would make more sense if the config also changed the value returned by Fluid#getExplosionResistance.

There are several reasons why a server could want to do this. In my case, I would like underwater explosions to work. The fact that they do not work is currently a significant problem on my server since it revolves around naval combat.

[granny]

implemented as of 789233a on build #1906