I'm making world gen for my mod and I'm wondering how you get the y coordinate that is not underground. I have looked in the minecraft source and found this

int y = world.getHeightValue(x, z);

But that always returns 0, help!

I'm wondering how you get the y coordinate that is not underground

 

heu ... y coordinate of what ?

 

because technicly yes 0 is a y coordinate.

 

are you asking how to get the y coordinate of the first block starting from the sky ? aka the non-air block that has the highest Y for a given x, z ?

I'm wondering how you get the y coordinate that is not underground

 

heu ... y coordinate of what ?

 

because technicly yes 0 is a y coordinate.

 

are you asking how to get the y coordinate of the first block starting from the sky ? aka the non-air block that has the highest Y for a given x, z ?

 

Yes, like how villages spawn on the top of the world

you could always just make a loop

 

public int getHighestBlock(world, x, z){

for(int i = 128; i > 0; i--){
if(world.getBlockId(x, i, z) != 0){
  return i;
}

return 0;
}
}

 

if it return 0 all the time it means your code is running BEFORE the land is generated

you could always just make a loop

 

public int getHighestBlock(world, x, z){

for(int i = 128; i > 0; i--){
if(world.getBlockId(x, i, z) != 0){
  return i;
}

return 0;
}
}

 

if it return 0 all the time it means your code is running BEFORE the land is generated

 

So how do I generate after the land?

does that return 0 all the time ?

 

if you  want to generate after the land, use decorators instead.

How do I decorate?

i mean the class and event of decoration, just look at the javadoc it's pretty straightfoward

 

http://jd.minecraftforge.net/

i mean the class and event of decoration, just look at the javadoc it's pretty straightfoward

 

http://jd.minecraftforge.net/

 

Is there a better way to do it? I know villages spawn on top of the world and they're not decorations.

villages use this code.

 

protected int getAverageGroundLevel(World par1World, StructureBoundingBox par2StructureBoundingBox)

    {

        int i = 0;

        int j = 0;

 

        for (int k = this.boundingBox.minZ; k <= this.boundingBox.maxZ; ++k)

        {

            for (int l = this.boundingBox.minX; l <= this.boundingBox.maxX; ++l)

            {

                if (par2StructureBoundingBox.isVecInside(l, 64, k))

                {

                    i += Math.max(par1World.getTopSolidOrLiquidBlock(l, k), par1World.provider.getAverageGroundLevel());

                    ++j;

                }

            }

        }

 

        if (j == 0)

        {

            return -1;

        }

        else

        {

            return i / j;

        }

    }

 

 

well technicly they are, or at least they are produced the same way, what exactly are you trying to achieve ?

also, did you even try my piece of code ?

 

well technicly they are, or at least they are produced the same way, what exactly are you trying to achieve ?

also, did you even try my piece of code ?

 

I did I just copied it wrong. Works great now. Thanks!