Applied-Energistics-2-tilera-Edition/block/AEBaseItemBlock.java

package appeng.block;

import java.util.List;

import net.minecraft.block.Block;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemBlock;
import net.minecraft.item.ItemStack;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;
import net.minecraftforge.client.MinecraftForgeClient;
import net.minecraftforge.common.util.ForgeDirection;
import appeng.api.util.IOrientable;
import appeng.api.util.IOrientableBlock;
import appeng.block.misc.BlockSkyCompass;
import appeng.block.networking.BlockWireless;
import appeng.client.render.ItemRenderer;
import appeng.me.helpers.IGridProxyable;
import appeng.tile.AEBaseTile;
import appeng.util.Platform;

public class AEBaseItemBlock extends ItemBlock
{

	final AEBaseBlock blockType;

	public AEBaseItemBlock(Block id) {
		super( id );
		blockType = (AEBaseBlock) id;
		hasSubtypes = blockType.hasSubtypes;

		if ( Platform.isClient() )
			MinecraftForgeClient.registerItemRenderer( this, ItemRenderer.instance );
	}

	@Override
	public int getMetadata(int dmg)
	{
		if ( hasSubtypes )
			return dmg;
		return 0;
	}

	@Override
	public String getUnlocalizedName(ItemStack is)
	{
		return blockType.getUnlocalizedName( is );
	}

	@Override
	public void addInformation(ItemStack is, EntityPlayer player, List lines, boolean advancedItemTooltips)
	{
		blockType.addInformation( is, player, lines, advancedItemTooltips );
	}

	@Override
	public boolean placeBlockAt(ItemStack stack, EntityPlayer player, World w, int x, int y, int z, int side, float hitX, float hitY, float hitZ, int metadata)
	{
		ForgeDirection up = ForgeDirection.UNKNOWN;
		ForgeDirection forward = ForgeDirection.UNKNOWN;

		IOrientable ori = null;

		if ( blockType.hasBlockTileEntity() )
		{
			if ( blockType instanceof BlockWireless || blockType instanceof BlockSkyCompass )
			{
				forward = ForgeDirection.getOrientation( side );
				if ( forward == ForgeDirection.UP || forward == ForgeDirection.DOWN )
					up = ForgeDirection.SOUTH;
				else
					up = ForgeDirection.UP;
			}
			else
			{
				up = ForgeDirection.UP;

				byte rotation = (byte) (MathHelper.floor_double( (double) ((player.rotationYaw * 4F) / 360F) + 2.5D ) & 3);

				switch (rotation)
				{
				default:
				case 0:
					forward = ForgeDirection.SOUTH;
					break;
				case 1:
					forward = ForgeDirection.WEST;
					break;
				case 2:
					forward = ForgeDirection.NORTH;
					break;
				case 3:
					forward = ForgeDirection.EAST;
					break;
				}

				if ( player.rotationPitch > 65 )
				{
					up = forward.getOpposite();
					forward = ForgeDirection.UP;
				}
				else if ( player.rotationPitch < -65 )
				{
					up = forward.getOpposite();
					forward = ForgeDirection.DOWN;
				}
			}
		}

		if ( blockType instanceof IOrientableBlock )
		{
			ori = ((IOrientableBlock) blockType).getOrientable( w, x, y, z );
			up = ForgeDirection.getOrientation( side );
			forward = ForgeDirection.SOUTH;
			if ( up.offsetY == 0 )
				forward = ForgeDirection.UP;

			ori.setOrientation( forward, up );
		}

		if ( !blockType.isValidOrientation( w, x, y, z, forward, up ) )
			return false;

		if ( super.placeBlockAt( stack, player, w, x, y, z, side, hitX, hitY, hitZ, metadata ) )
		{
			if ( blockType.hasBlockTileEntity() && !blockType.hasCustomRotation() )
			{
				AEBaseTile tile = blockType.getTileEntity( w, x, y, z );
				ori = tile;

				if ( tile == null )
					return true;

				if ( ori.canBeRotated() )
				{
					if ( ori.getForward() == null || ori.getUp() == null || // null
							tile.getForward() == ForgeDirection.UNKNOWN || ori.getUp() == ForgeDirection.UNKNOWN )
						ori.setOrientation( forward, up );
				}

				if ( tile instanceof IGridProxyable )
				{
					((IGridProxyable) tile).getProxy().setOwner( player );
				}

				tile.onPlacement( stack, player, side );
			}
			else if ( blockType instanceof IOrientableBlock )
			{
				ori.setOrientation( forward, up );
			}

			return true;
		}
		return false;
	}

	@Override
	public boolean isBookEnchantable(ItemStack itemstack1, ItemStack itemstack2)
	{
		return false;
	}

}