I'm trying to enable a mob to spawn tall grass as it moves, much like how a snow golem spawns in snow as it walks around.

 

Thing is... It's spawning dead bushes rather than tall grass...

Here's the code I grabbed from EntitySnowman:

 public void onLivingUpdate()
    {
        super.onLivingUpdate();
      for (i = 0; i < 4; ++i)
        {
            j = MathHelper.floor_double(this.posX + (double)((float)(i % 2 * 2 - 1) * 0.25F));
            int k = MathHelper.floor_double(this.posY);
            int l = MathHelper.floor_double(this.posZ + (double)((float)(i / 2 % 2 * 2 - 1) * 0.25F));

            if (this.worldObj.getBlockId(j, k, l) == 0 && this.worldObj.getBiomeGenForCoords(j, l).getFloatTemperature() < 0.8F && Block.snow.canPlaceBlockAt(this.worldObj, j, k, l))
            {
                this.worldObj.setBlock(j, k, l, Block.snow.blockID);
            }
        }
    }

 

Then I changed some things on the bottom method:

 if (this.worldObj.getBlockId(j, k, l) == 0 && this.worldObj.getBiomeGenForCoords(j, l).getFloatTemperature() < 0.6F && Block.grass.canPlaceBlockAt(this.worldObj, j, k, l))
	            {
	                this.worldObj.setBlock(j, k, l, Block.tallGrass.blockID);
	            } 

 

Of course, I'd change some variables to what I want, such as Block.snow to Block.tallGrass.

I messed around with the getFloatTemperature, but every time I change it to something it spawns in dead bushes

It seems as if anything above 0.7F, nothing spawns

I think you need to set the meta data of the block too.

Which is what? And where do I apply it?

There are multiple values of "tallGrass" (which is metadata).

 

You can use .setBlockAndMetadata

How do I apply this?

Do I need to make a new method, if so, how?

I'm asking this, because apparently this method doesn't exist

try changing

this.worldObj.setBlock(j, k, l, Block.tallGrass.blockID);

to

this.worldObj.setBlock(j, k, l, Block.tallGrass.blockID, 1, 0);

Thnx dude!