I broke ModLoader

//mod_EvilMinecraft.java, only relevant sections
public class mod_EvilMinecraft extends BaseMod
{
    public static int grassModelID;

    public void load()
    {
        grassModelID = ModLoader.getUniqueBlockModelID(this, true);
    }

    private boolean RenderGrassBlockInWorld(RenderBlocks renderblocks, IBlockAccess iblockaccess, int i, int j, int k, Block block)
    {
        int northBlockID = iblockaccess.getBlockId(i, j, k + 1);
        if(northBlockID == 0) { northBlockID = 36; }
        int eastBlockID = iblockaccess.getBlockId(i + 1, j, k);
        if(eastBlockID == 0) { eastBlockID = 36; }
        int southBlockID = iblockaccess.getBlockId(i, j, k - 1);
        if(southBlockID == 0) { southBlockID = 36; }
        int westBlockID = iblockaccess.getBlockId(i - 1, j, k);
        if(westBlockID == 0) { westBlockID = 36; }
        //System.out.println((new StringBuilder()).append("n=").append(northBlockID).append(" e=").append(eastBlockID).append(" s=").append(southBlockID).append(" w=").append(westBlockID).toString());
        boolean blockToNW = (Block.blocksList[northBlockID].isOpaqueCube() && Block.blocksList[westBlockID].isOpaqueCube());
        boolean blockToNE = (Block.blocksList[northBlockID].isOpaqueCube() && Block.blocksList[eastBlockID].isOpaqueCube());
        boolean blockToSE = (Block.blocksList[southBlockID].isOpaqueCube() && Block.blocksList[eastBlockID].isOpaqueCube());
        boolean blockToSW = (Block.blocksList[southBlockID].isOpaqueCube() && Block.blocksList[westBlockID].isOpaqueCube());
        //Default case - Grass surrounded by solid blocks on all sides
        if(blockToNW && blockToNE && blockToSE && blockToSW)
        {
            block.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
            renderblocks.renderStandardBlock(block, i, j, k);
        }
        else
        {
            //Base half-layer, placed even if grass has no solid blocks around it
            block.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.5F, 1.0F);
            renderblocks.renderStandardBlock(block, i, j, k);
            //Corner cases, NOT mutually exclusive (will usually have more than one!)
            if(blockToNW)
            {
                block.setBlockBounds(0.0F, 0.5F, 0.5F, 0.5F, 1.0F, 1.0F);
                renderblocks.renderStandardBlock(block, i, j, k);
            }
            if(blockToNE)
            {
                block.setBlockBounds(0.5F, 0.5F, 0.5F, 1.0F, 1.0F, 1.0F);
                renderblocks.renderStandardBlock(block, i, j, k);
            }
            if(blockToSE)
            {
                block.setBlockBounds(0.5F, 0.5F, 0.0F, 1.0F, 1.0F, 0.5F);
                renderblocks.renderStandardBlock(block, i, j, k);
            }
            if(blockToSW)
            {
                block.setBlockBounds(0.0F, 0.5F, 0.0F, 0.5F, 1.0F, 0.5F);
                renderblocks.renderStandardBlock(block, i, j, k);
            }
        }
        //Not rendered, just fix the stupid hitbox
        block.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
        return false;
    }

    public boolean RenderWorldBlock(RenderBlocks renderblocks, IBlockAccess iblockaccess, int i, int j, int k, Block block, int l)
    {
        if(l == grassModelID)
    {
        return RenderGrassBlockInWorld(renderblocks, iblockaccess, i, j, k, block);
    }
    else
        {
            return false;
        }
    }
}

//===============================================
//Addition to BlockGrass.java:

public int getRenderType()
{
    return mod_EvilMinecraft.grassModelID;
}