package net.minecraft.block;

import net.minecraft.block.material.Material;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.properties.PropertyDirection;
import net.minecraft.block.state.BlockFaceShape;
import net.minecraft.block.state.BlockStateContainer;
import net.minecraft.block.state.IBlockState;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.util.BlockRenderLayer;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.Mirror;
import net.minecraft.util.Rotation;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class BlockLadder extends Block
{
    public static final PropertyDirection FACING = BlockHorizontal.FACING;
    protected static final AxisAlignedBB LADDER_EAST_AABB = new AxisAlignedBB(0.0D, 0.0D, 0.0D, 0.1875D, 1.0D, 1.0D);
    protected static final AxisAlignedBB LADDER_WEST_AABB = new AxisAlignedBB(0.8125D, 0.0D, 0.0D, 1.0D, 1.0D, 1.0D);
    protected static final AxisAlignedBB LADDER_SOUTH_AABB = new AxisAlignedBB(0.0D, 0.0D, 0.0D, 1.0D, 1.0D, 0.1875D);
    protected static final AxisAlignedBB LADDER_NORTH_AABB = new AxisAlignedBB(0.0D, 0.0D, 0.8125D, 1.0D, 1.0D, 1.0D);

    protected BlockLadder()
    {
        super(Material.CIRCUITS);
        this.setDefaultState(this.blockState.getBaseState().withProperty(FACING, EnumFacing.NORTH));
        this.setCreativeTab(CreativeTabs.DECORATIONS);
    }

    public AxisAlignedBB getBoundingBox(IBlockState state, IBlockAccess source, BlockPos pos)
    {
        switch ((EnumFacing)state.getValue(FACING))
        {
            case NORTH:
                return LADDER_NORTH_AABB;
            case SOUTH:
                return LADDER_SOUTH_AABB;
            case WEST:
                return LADDER_WEST_AABB;
            case EAST:
            default:
                return LADDER_EAST_AABB;
        }
    }

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

    public boolean isFullCube(IBlockState state)
    {
        return false;
    }

    /**
     * Check whether this Block can be placed at pos, while aiming at the specified side of an adjacent block
     */
    public boolean canPlaceBlockOnSide(World worldIn, BlockPos pos, EnumFacing side)
    {
        if (this.canAttachTo(worldIn, pos.west(), side))
        {
            return true;
        }
        else if (this.canAttachTo(worldIn, pos.east(), side))
        {
            return true;
        }
        else if (this.canAttachTo(worldIn, pos.north(), side))
        {
            return true;
        }
        else
        {
            return this.canAttachTo(worldIn, pos.south(), side);
        }
    }

    private boolean canAttachTo(World p_193392_1_, BlockPos p_193392_2_, EnumFacing p_193392_3_)
    {
        IBlockState iblockstate = p_193392_1_.getBlockState(p_193392_2_);
        boolean flag = isExceptBlockForAttachWithPiston(iblockstate.getBlock());
        return !flag && iblockstate.getBlockFaceShape(p_193392_1_, p_193392_2_, p_193392_3_) == BlockFaceShape.SOLID && !iblockstate.canProvidePower();
    }

    /**
     * Called by ItemBlocks just before a block is actually set in the world, to allow for adjustments to the
     * IBlockstate
     */
    public IBlockState getStateForPlacement(World worldIn, BlockPos pos, EnumFacing facing, float hitX, float hitY, float hitZ, int meta, EntityLivingBase placer)
    {
        if (facing.getAxis().isHorizontal() && this.canAttachTo(worldIn, pos.offset(facing.getOpposite()), facing))
        {
            return this.getDefaultState().withProperty(FACING, facing);
        }
        else
        {
            for (EnumFacing enumfacing : EnumFacing.Plane.HORIZONTAL)
            {
                if (this.canAttachTo(worldIn, pos.offset(enumfacing.getOpposite()), enumfacing))
                {
                    return this.getDefaultState().withProperty(FACING, enumfacing);
                }
            }

            return this.getDefaultState();
        }
    }

    /**
     * Called when a neighboring block was changed and marks that this state should perform any checks during a neighbor
     * change. Cases may include when redstone power is updated, cactus blocks popping off due to a neighboring solid
     * block, etc.
     */
    public void neighborChanged(IBlockState state, World worldIn, BlockPos pos, Block blockIn, BlockPos fromPos)
    {
        EnumFacing enumfacing = (EnumFacing)state.getValue(FACING);

        if (!this.canAttachTo(worldIn, pos.offset(enumfacing.getOpposite()), enumfacing))
        {
            this.dropBlockAsItem(worldIn, pos, state, 0);
            worldIn.setBlockToAir(pos);
        }

        super.neighborChanged(state, worldIn, pos, blockIn, fromPos);
    }

    /**
     * Convert the given metadata into a BlockState for this Block
     */
    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);
    }

    @SideOnly(Side.CLIENT)
    public BlockRenderLayer getBlockLayer()
    {
        return BlockRenderLayer.CUTOUT;
    }

    /**
     * Convert the BlockState into the correct metadata value
     */
    public int getMetaFromState(IBlockState state)
    {
        return ((EnumFacing)state.getValue(FACING)).getIndex();
    }

    /**
     * Returns the blockstate with the given rotation from the passed blockstate. If inapplicable, returns the passed
     * blockstate.
     */
    public IBlockState withRotation(IBlockState state, Rotation rot)
    {
        return state.withProperty(FACING, rot.rotate((EnumFacing)state.getValue(FACING)));
    }

    /**
     * Returns the blockstate with the given mirror of the passed blockstate. If inapplicable, returns the passed
     * blockstate.
     */
    public IBlockState withMirror(IBlockState state, Mirror mirrorIn)
    {
        return state.withRotation(mirrorIn.toRotation((EnumFacing)state.getValue(FACING)));
    }

    protected BlockStateContainer createBlockState()
    {
        return new BlockStateContainer(this, new IProperty[] {FACING});
    }

    @Override public boolean isLadder(IBlockState state, IBlockAccess world, BlockPos pos, EntityLivingBase entity) { return true; }

    /**
     * Get the geometry of the queried face at the given position and state. This is used to decide whether things like
     * buttons are allowed to be placed on the face, or how glass panes connect to the face, among other things.
     * <p>
     * Common values are {@code SOLID}, which is the default, and {@code UNDEFINED}, which represents something that
     * does not fit the other descriptions and will generally cause other things not to connect to the face.
     * 
     * @return an approximation of the form of the given face
     */
    public BlockFaceShape getBlockFaceShape(IBlockAccess worldIn, IBlockState state, BlockPos pos, EnumFacing face)
    {
        return BlockFaceShape.UNDEFINED;
    }
}