package net.minecraft.block;

import java.util.Random;
import net.minecraft.block.material.MapColor;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.init.Blocks;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.BlockPos;
import net.minecraft.world.World;

public class BlockBush extends Block
{
    protected BlockBush()
    {
        this(Material.plants);
    }

    protected BlockBush(Material materialIn)
    {
        this(materialIn, materialIn.getMaterialMapColor());
    }

    protected BlockBush(Material p_i46452_1_, MapColor p_i46452_2_)
    {
        super(p_i46452_1_, p_i46452_2_);
        this.setTickRandomly(true);
        float f = 0.2F;
        this.setBlockBounds(0.5F - f, 0.0F, 0.5F - f, 0.5F + f, f * 3.0F, 0.5F + f);
        this.setCreativeTab(CreativeTabs.tabDecorations);
    }

    public boolean canPlaceBlockAt(World worldIn, BlockPos pos)
    {
        return super.canPlaceBlockAt(worldIn, pos) && this.canPlaceBlockOn(worldIn.getBlockState(pos.down()).getBlock());
    }

    /**
     * is the block grass, dirt or farmland
     */
    protected boolean canPlaceBlockOn(Block ground)
    {
        return ground == Blocks.grass || ground == Blocks.dirt || ground == Blocks.farmland;
    }

    /**
     * Called when a neighboring block changes.
     */
    public void onNeighborBlockChange(World worldIn, BlockPos pos, IBlockState state, Block neighborBlock)
    {
        super.onNeighborBlockChange(worldIn, pos, state, neighborBlock);
        this.checkAndDropBlock(worldIn, pos, state);
    }

    public void updateTick(World worldIn, BlockPos pos, IBlockState state, Random rand)
    {
        this.checkAndDropBlock(worldIn, pos, state);
    }

    protected void checkAndDropBlock(World worldIn, BlockPos pos, IBlockState state)
    {
        if (!this.canBlockStay(worldIn, pos, state))
        {
            this.dropBlockAsItem(worldIn, pos, state, 0);
            worldIn.setBlockState(pos, Blocks.air.getDefaultState(), 3);
        }
    }

    public boolean canBlockStay(World worldIn, BlockPos pos, IBlockState state)
    {
        return this.canPlaceBlockOn(worldIn.getBlockState(pos.down()).getBlock());
    }

    public AxisAlignedBB getCollisionBoundingBox(World worldIn, BlockPos pos, IBlockState state)
    {
        return null;
    }

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

    public boolean isFullCube()
    {
        return false;
    }
}
