ItemBlockMSlab.java

package minestrapteam.mods.minestrappolation.item.blocks;

import minestrapteam.mods.minestrappolation.block.BlockMDoubleSlab;
import minestrapteam.mods.minestrappolation.block.BlockMSlab;
import net.minecraft.block.Block;
import net.minecraft.block.BlockSlab;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemBlock;
import net.minecraft.item.ItemStack;
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 ItemBlockMSlab extends ItemBlock
{
	private final BlockSlab slab;
	private final BlockSlab double_slab;

	public ItemBlockMSlab(Block p_i45782_1_, BlockMSlab slab, BlockMDoubleSlab double_slab)
	{
		super(p_i45782_1_);
		this.slab = slab;
		this.double_slab = double_slab;
		this.setMaxDamage(0);
		this.setHasSubtypes(true);
	}

	@Override
	public int getMetadata(int damage)
	{
		return damage;
	}

	@Override
	public boolean onItemUse(ItemStack stack, EntityPlayer playerIn, World worldIn, BlockPos pos, EnumFacing side, float hitX, float hitY, float hitZ)
	{
		if (stack.stackSize == 0)
		{
			return false;
		}
		else if (!playerIn.canPlayerEdit(pos.offset(side), side, stack))
		{
			return false;
		}
		else
		{
			Object object = this.slab.getVariant(stack);
			IBlockState iblockstate = worldIn.getBlockState(pos);

			if (iblockstate.getBlock() == this.slab)
			{
				BlockSlab.EnumBlockHalf enumblockhalf = iblockstate.getValue(BlockSlab.HALF);

				if ((side == EnumFacing.UP && enumblockhalf == BlockSlab.EnumBlockHalf.BOTTOM
					     || side == EnumFacing.DOWN && enumblockhalf == BlockSlab.EnumBlockHalf.TOP))
				{
					IBlockState iblockstate1 = this.double_slab.getDefaultState();

					if (worldIn.checkNoEntityCollision(
						this.double_slab.getCollisionBoundingBox(worldIn, pos, iblockstate1)) && worldIn
							                                                                         .setBlockState(pos,
							                                                                                        iblockstate1,
							                                                                                        3))
					{
						worldIn
							.playSoundEffect((double) ((float) pos.getX() + 0.5F), (double) ((float) pos.getY() + 0.5F),
							                 (double) ((float) pos.getZ() + 0.5F),
							                 this.double_slab.stepSound.getPlaceSound(),
							                 (this.double_slab.stepSound.getVolume() + 1.0F) / 2.0F,
							                 this.double_slab.stepSound.getFrequency() * 0.8F);
						--stack.stackSize;
					}

					return true;
				}
			}

			return this.func_180615_a(stack, worldIn, pos.offset(side), object) || super.onItemUse(stack, playerIn,
			                                                                                       worldIn, pos, side,
			                                                                                       hitX, hitY, hitZ);
		}
	}

	@Override
	@SideOnly(Side.CLIENT)
	public boolean canPlaceBlockOnSide(World worldIn, BlockPos p_179222_2_, EnumFacing p_179222_3_, EntityPlayer p_179222_4_, ItemStack p_179222_5_)
	{
		BlockPos blockpos1 = p_179222_2_;
		Object object = this.slab.getVariant(p_179222_5_);
		IBlockState iblockstate = worldIn.getBlockState(p_179222_2_);

		if (iblockstate.getBlock() == this.slab)
		{
			boolean flag = iblockstate.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.TOP;

			if ((p_179222_3_ == EnumFacing.UP && !flag || p_179222_3_ == EnumFacing.DOWN && flag))
			{
				return true;
			}
		}

		p_179222_2_ = p_179222_2_.offset(p_179222_3_);
		IBlockState iblockstate1 = worldIn.getBlockState(p_179222_2_);
		return iblockstate1.getBlock() == this.slab || super.canPlaceBlockOnSide(worldIn, blockpos1, p_179222_3_,
		                                                                         p_179222_4_, p_179222_5_);
	}

	private boolean func_180615_a(ItemStack p_180615_1_, World worldIn, BlockPos p_180615_3_, Object p_180615_4_)
	{
		IBlockState iblockstate = worldIn.getBlockState(p_180615_3_);

		if (iblockstate.getBlock() == this.slab)
		{
			IBlockState iblockstate1 = this.double_slab.getDefaultState();

			if (worldIn.checkNoEntityCollision(
				this.double_slab.getCollisionBoundingBox(worldIn, p_180615_3_, iblockstate1)) && worldIn.setBlockState(
				p_180615_3_, iblockstate1, 3))
			{
				worldIn.playSoundEffect((double) ((float) p_180615_3_.getX() + 0.5F),
				                        (double) ((float) p_180615_3_.getY() + 0.5F),
				                        (double) ((float) p_180615_3_.getZ() + 0.5F),
				                        this.double_slab.stepSound.getPlaceSound(),
				                        (this.double_slab.stepSound.getVolume() + 1.0F) / 2.0F,
				                        this.double_slab.stepSound.getFrequency() * 0.8F);
				--p_180615_1_.stackSize;
			}

			return true;
		}

		return false;
	}
}