[1.7.10] Checking if block is liquid or not

[TheiTay]

Hello, I am currently developing a Path-finding mod for 1.7.10. I have a function that tells me what is the block type and it works like that:

 

private static BlockType getBlockType(int[] blockLocation) {
	return 
			theWorld.getBlock(				
			blockLocation[Coords.X.ordinal()],
			blockLocation[Coords.Y.ordinal()],
			blockLocation[Coords.Z.ordinal()]).getBlockHardness(theWorld, blockLocation[Coords.X.ordinal()],
					blockLocation[Coords.Y.ordinal()],
					blockLocation[Coords.Z.ordinal()]) >= 0.01f				
			? BlockType.SOLID
			: BlockType.NON_SOLID;
}

 

The reason I used this method instead of using method such as isBlockNormalCubeDefault is because it identified some blocks (such as leaves) as non-solid.

Anyway, I want to check if a block has type of liquids in it, water/lava. it doesn't matter which or whether it's flowing or not, but I must know that it has liquids in it.

 

Any suggestions how?

Thanks in advance.

[Frag]

This would return true if its a water block ...or it is a block that has material as water (like underwater plants, which you can swim thru).

 

(aWorld.getBlock((int)xPos, (int)yPos+up, (int)zPos).getMaterial() == Material.water)

 

[TheiTay]

This would return true if its a water block ...or it is a block that has material as water (like underwater plants, which you can swim thru).

 

(aWorld.getBlock((int)xPos, (int)yPos+up, (int)zPos).getMaterial() == Material.water)

thank you, would it work with Material.Lava too?

and would it do any difference between water and flowing water?

 

Thanks!

[jeffryfisher]

You might instead test for instanceof BlockLiquid, but see what that does with ice. Checking instanceof might help your mod work with other mods that introduce their own liquids.

[WeiseGuy]

This would return true if its a water block ...or it is a block that has material as water (like underwater plants, which you can swim thru).

 

(aWorld.getBlock((int)xPos, (int)yPos+up, (int)zPos).getMaterial() == Material.water)

thank you, would it work with Material.Lava too?

and would it do any difference between water and flowing water?

 

Thanks!

 

I know it works with flowing water as I've tested it myself to make some plants that check for water blocks nearby with getMaterial material.water. So source/flowing.

 

I imagine lava works the same but haven't tested it yet. I will be soon though.

 

Also, farmland (fertilized or hydrated soil in vanilla) does this code. Checks material water, that's how come your farmland hydrates even if flowing water is nearby.

[Draco18s]

You should check that the block is an instanceof BlockLiquidBase, then cast and get the Fluid field and examine it for its liquid properties

All mod added liquids should extend from that, but that includes gasses which you would want to treat as air (hence looking at the Fluid field's properties).

[Abastro]

When block is Block type, block.getMaterial().isLiquid() would be sufficient.

[Choonster]

You should check that the block is an instanceof BlockLiquidBase, then cast and get the Fluid field and examine it for its liquid properties

All mod added liquids should extend from that, but that includes gasses which you would want to treat as air (hence looking at the Fluid field's properties).

 

Most mod fluid blocks will extend from

BlockFluidBase

(which you probably meant), but it's entirely possible that they'll implement

IFluidBlock

themselves and not use the reference implementation.

[jabelar]

I would use instanceof checks instead of material checks. I would check for both BlockLiquid and BlockFluidBase. That should cover most vanilla and mod "liquids". If you want an exception (like if there is some BlockLiquid you don't want to act the same way, then additionally check for whatever you want.

[Abastro]

I would use instanceof checks instead of material checks. I would check for both BlockLiquid and BlockFluidBase. That should cover most vanilla and mod "liquids". If you want an exception (like if there is some BlockLiquid you don't want to act the same way, then additionally check for whatever you want.

There is some possibility that mod block uses IFluidBlock as Choonster said.

Vanilla checks if a block is liquid using block.getMaterial().isLiquid().

[Draco18s]

You can instanceof IFluidBlock too.

The material check should be sufficient, but just look out for possible weirdnesses.  I don't recall offhand if gaseous materials return true for isLiquid() or not.

[jabelar]

You can instanceof IFluidBlock too.

The material check should be sufficient, but just look out for possible weirdnesses.  I don't recall offhand if gaseous materials return true for isLiquid() or not.

 

I agree that material should work with vanilla liquids but I think there is more chance that other mods create new materials for custom fluids whereas it is unlikely that they wouldn't extend or implement fluids. So I think maximum compatibility would be using instanceof.

[Choonster]

You can instanceof IFluidBlock too.

The material check should be sufficient, but just look out for possible weirdnesses.  I don't recall offhand if gaseous materials return true for isLiquid() or not.

 

Vanilla has no concept of gases, so most gaseous fluids (at least the ones from Thermal Foundation, IC2 and Railcraft) just use

MaterialLiquid

(which returns

true

from

Material#isLiquid

).

[Draco18s]

You can instanceof IFluidBlock too.

The material check should be sufficient, but just look out for possible weirdnesses.  I don't recall offhand if gaseous materials return true for isLiquid() or not.

 

Vanilla has no concept of gases, so most gaseous fluids (at least the ones from Thermal Foundation, IC2 and Railcraft) just use

MaterialLiquid

(which returns

true

from

Material#isLiquid

).

 

That's what I thought.  Now that I have a chance to dig at my own code where I have my own gas...

Ah here we go

 

if(block instanceof IFluidBlock) {
    IFluidBlock fb = (IFluidBlock)block;
    Fluid fl = fb.getFluid();
    boolean isGaseous = fl.isGaseous();
}