tcr/java/src/game/block/BlockAir.java

package game.block;

import game.material.Material;
import game.world.BlockPos;
import game.world.BoundingBox;
import game.world.State;
import game.world.World;

public class BlockAir extends Block
{
	public BlockAir()
    {
        super(Material.air);
    }

    /**
     * The type of render function called. 3 for standard block models, 2 for TESR's, 1 for liquids, -1 is no render
     */
    public int getRenderType()
    {
        return -1;
    }

    public BoundingBox getCollisionBoundingBox(World worldIn, BlockPos pos, State state)
    {
        return null;
    }

    /**
     * Used to determine ambient occlusion and culling when rebuilding chunks for render
     */
    public boolean isOpaqueCube()
    {
        return false;
    }

    public boolean canCollideCheck(State state, boolean hitIfLiquid)
    {
        return false;
    }

    /**
     * Spawns this Block's drops into the World as EntityItems.
     */
    public void dropBlockAsItemWithChance(World worldIn, BlockPos pos, State state, float chance, int fortune)
    {
    }

    /**
     * Whether this Block can be replaced directly by other blocks (true for e.g. tall grass)
     */
    public boolean isReplaceable(World worldIn, BlockPos pos)
    {
        return true;
    }
}