Checking Neighbour Block

[ashjack]

Hi, I am trying to make a block that explodes when in contact with water (lithium).

 

I have tried to make this code, but it only works if the neighbour block is a liquid, and THEN it is replaced. I want it to explode as soon as water is placed next to or flows to the block. (water_still and water_flow)

 

Here is my current code (the spoiler button decided not to work, sorry):

 

 

public MMCLithiumBlock(int par1, Material par2Material) {

super(par1, par2Material);

}

 

public void onNeighborBlockChange(World world, int i, int j, int k, int l){

 

if(l > 0 && Block.blocksList[l].isBlockReplaceable(world, i, j, k) == true)

        {

world.createExplosion((Entity)null, i, j, k, 1, true);

}

}

[TheGreyGhost]

Hi

 

A quick look through BlockFluid gave me the checkForHarden method, which is called when lava and water mix.

 

checkForHarden is called by

BlockFluid.onBlockAdded

and

BlockFluid.onNeighbourBlockChange

 

So it might help if you override onBlockAdded as well.

 

-TGG

 

[Draco18s]

By the way, "Block.blocksList[l].isBlockReplaceable(world, i, j, k)" won't just explode on water.

 

It'll explode on a whole host of other things too.  Like snow, lava, tall grass, and many mod blocks such as mod added liquids and gasses.  I even have a mod that creates a solid block you can walk on, but has no outline, no texture, and can be replaced by other blocks.

 

Dimensional Doors uses a isReplacable block for the volume-material of its pocket dimensions.

[mardiff]

Use what both of these guys said. Check if the block id is water, not if it's replaceable. Also use onBlockAdded so that way it doesn't have to wait for the block next to it to change once it's placed.