BlockDirectional.java

package minestrapteam.mods.minestrappolation.block;

import net.minecraft.block.Block;
import net.minecraft.block.BlockContainer;
import net.minecraft.block.material.Material;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.properties.PropertyDirection;
import net.minecraft.block.state.BlockState;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.BlockPos;
import net.minecraft.util.EnumFacing;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class BlockDirectional extends BlockContainer
{
	public static final PropertyDirection FACING = PropertyDirection.create("facing", EnumFacing.Plane.HORIZONTAL);

	protected BlockDirectional(Material materialIn)
	{
		super(materialIn);
	}

	@Override
	public void onBlockAdded(World worldIn, BlockPos pos, IBlockState state)
	{
		this.setDefaultFacing(worldIn, pos, state);
	}

	@Override
	public TileEntity createNewTileEntity(World worldIn, int meta)
	{
		return null;
	}

	private void setDefaultFacing(World worldIn, BlockPos pos, IBlockState state)
	{
		if (!worldIn.isRemote)
		{
			Block block = worldIn.getBlockState(pos.north()).getBlock();
			Block block1 = worldIn.getBlockState(pos.south()).getBlock();
			Block block2 = worldIn.getBlockState(pos.west()).getBlock();
			Block block3 = worldIn.getBlockState(pos.east()).getBlock();
			EnumFacing enumfacing = state.getValue(FACING);

			if (enumfacing == EnumFacing.NORTH && block.isFullBlock() && !block1.isFullBlock())
			{
				enumfacing = EnumFacing.SOUTH;
			}
			else if (enumfacing == EnumFacing.SOUTH && block1.isFullBlock() && !block.isFullBlock())
			{
				enumfacing = EnumFacing.NORTH;
			}
			else if (enumfacing == EnumFacing.WEST && block2.isFullBlock() && !block3.isFullBlock())
			{
				enumfacing = EnumFacing.EAST;
			}
			else if (enumfacing == EnumFacing.EAST && block3.isFullBlock() && !block2.isFullBlock())
			{
				enumfacing = EnumFacing.WEST;
			}

			worldIn.setBlockState(pos, state.withProperty(FACING, enumfacing), 2);
		}
	}

	@Override
	public IBlockState onBlockPlaced(World worldIn, BlockPos pos, EnumFacing facing, float hitX, float hitY, float hitZ, int meta, EntityLivingBase placer)
	{
		super.onBlockPlaced(worldIn, pos, facing, hitX, hitY, hitZ, meta, placer);
		return this.getDefaultState().withProperty(FACING, placer.getHorizontalFacing().getOpposite());
	}

	@Override
	@SideOnly(Side.CLIENT)
	public IBlockState getStateForEntityRender(IBlockState state)
	{
		return this.getDefaultState().withProperty(FACING, EnumFacing.SOUTH);
	}

	@Override
	public IBlockState getStateFromMeta(int meta)
	{
		EnumFacing enumfacing = EnumFacing.getFront(meta);

		if (enumfacing.getAxis() == EnumFacing.Axis.Y)
		{
			enumfacing = EnumFacing.NORTH;
		}

		return this.getDefaultState().withProperty(FACING, enumfacing);
	}

	@Override
	public int getMetaFromState(IBlockState state)
	{
		return state.getValue(FACING).getIndex();
	}

	@Override
	protected BlockState createBlockState()
	{
		return new BlockState(this, FACING);
	}
}