BlockMyPane

package com.smith.mod.blocks;

import java.util.List;
import java.util.Random;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.properties.PropertyBool;
import net.minecraft.block.state.BlockState;
import net.minecraft.block.state.IBlockState;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.Entity;
import net.minecraft.init.Blocks;
import net.minecraft.item.Item;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.BlockPos;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.EnumWorldBlockLayer;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class BlockMyPane extends Block
{
    public static final PropertyBool NORTH = PropertyBool.create("north");
    public static final PropertyBool EAST = PropertyBool.create("east");
    public static final PropertyBool SOUTH = PropertyBool.create("south");
    public static final PropertyBool WEST = PropertyBool.create("west");
    private final boolean canDrop;

    public BlockMyPane(Material materialIn, boolean canDrop)
    {
        super(materialIn);
        this.setDefaultState(this.blockState.getBaseState().withProperty(NORTH, Boolean.valueOf(false)).withProperty(EAST, Boolean.valueOf(false)).withProperty(SOUTH, Boolean.valueOf(false)).withProperty(WEST, Boolean.valueOf(false)));
        this.canDrop = canDrop;
    }

    /**
     * Get the actual Block state of this Block at the given position. This applies properties not visible in the
     * metadata, such as fence connections.
     */
    public IBlockState getActualState(IBlockState state, IBlockAccess worldIn, BlockPos pos)
    {
        return state.withProperty(NORTH, canPaneConnectTo(worldIn, pos, EnumFacing.NORTH))
                .withProperty(SOUTH, canPaneConnectTo(worldIn, pos, EnumFacing.SOUTH))
                .withProperty(WEST, canPaneConnectTo(worldIn, pos, EnumFacing.WEST))
                .withProperty(EAST, canPaneConnectTo(worldIn, pos, EnumFacing.EAST));
    }

    /**
     * Get the Item that this Block should drop when harvested.
     *
     * @param fortune the level of the Fortune enchantment on the player's tool
     */
    public Item getItemDropped(IBlockState state, Random rand, int fortune)
    {
        return !this.canDrop ? null : super.getItemDropped(state, rand, fortune);
    }

    public boolean isOpaqueCube()
    {
        return false;
    }

    public boolean isFullCube()
    {
        return false;
    }

    @SideOnly(Side.CLIENT)
    public boolean shouldSideBeRendered(IBlockAccess worldIn, BlockPos pos, EnumFacing side)
    {
        return worldIn.getBlockState(pos).getBlock() == this ? false : super.shouldSideBeRendered(worldIn, pos, side);
    }

    /**
     * Add all collision boxes of this Block to the list that intersect with the given mask.
     *
     * @param collidingEntity the Entity colliding with this Block
     */
    public void addCollisionBoxesToList(World worldIn, BlockPos pos, IBlockState state, AxisAlignedBB mask, List list, Entity collidingEntity)
    {
        boolean flag = this.canPaneConnectTo(worldIn, pos, EnumFacing.NORTH);
        boolean flag1 = this.canPaneConnectTo(worldIn, pos, EnumFacing.SOUTH);
        boolean flag2 = this.canPaneConnectTo(worldIn, pos, EnumFacing.WEST);
        boolean flag3 = this.canPaneConnectTo(worldIn, pos, EnumFacing.EAST);

        if ((!flag2 || !flag3) && (flag2 || flag3 || flag || flag1))
        {
            if (flag2)
            {
                this.setBlockBounds(0.0F, 0.0F, 0.4375F, 0.5F, 1.0F, 0.5625F);
                super.addCollisionBoxesToList(worldIn, pos, state, mask, list, collidingEntity);
            }
            else if (flag3)
            {
                this.setBlockBounds(0.5F, 0.0F, 0.4375F, 1.0F, 1.0F, 0.5625F);
                super.addCollisionBoxesToList(worldIn, pos, state, mask, list, collidingEntity);
            }
        }
        else
        {
            this.setBlockBounds(0.0F, 0.0F, 0.4375F, 1.0F, 1.0F, 0.5625F);
            super.addCollisionBoxesToList(worldIn, pos, state, mask, list, collidingEntity);
        }

        if ((!flag || !flag1) && (flag2 || flag3 || flag || flag1))
        {
            if (flag)
            {
                this.setBlockBounds(0.4375F, 0.0F, 0.0F, 0.5625F, 1.0F, 0.5F);
                super.addCollisionBoxesToList(worldIn, pos, state, mask, list, collidingEntity);
            }
            else if (flag1)
            {
                this.setBlockBounds(0.4375F, 0.0F, 0.5F, 0.5625F, 1.0F, 1.0F);
                super.addCollisionBoxesToList(worldIn, pos, state, mask, list, collidingEntity);
            }
        }
        else
        {
            this.setBlockBounds(0.4375F, 0.0F, 0.0F, 0.5625F, 1.0F, 1.0F);
            super.addCollisionBoxesToList(worldIn, pos, state, mask, list, collidingEntity);
        }
    }

    /**
     * Sets the block's bounds for rendering it as an item
     */
    public void setBlockBoundsForItemRender()
    {
        this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
    }

    public void setBlockBoundsBasedOnState(IBlockAccess worldIn, BlockPos pos)
    {
        float f = 0.4375F;
        float f1 = 0.5625F;
        float f2 = 0.4375F;
        float f3 = 0.5625F;
        boolean flag = this.canPaneConnectToBlock(worldIn.getBlockState(pos.north()).getBlock());
        boolean flag1 = this.canPaneConnectToBlock(worldIn.getBlockState(pos.south()).getBlock());
        boolean flag2 = this.canPaneConnectToBlock(worldIn.getBlockState(pos.west()).getBlock());
        boolean flag3 = this.canPaneConnectToBlock(worldIn.getBlockState(pos.east()).getBlock());

        if ((!flag2 || !flag3) && (flag2 || flag3 || flag || flag1))
        {
            if (flag2)
            {
                f = 0.0F;
            }
            else if (flag3)
            {
                f1 = 1.0F;
            }
        }
        else
        {
            f = 0.0F;
            f1 = 1.0F;
        }

        if ((!flag || !flag1) && (flag2 || flag3 || flag || flag1))
        {
            if (flag)
            {
                f2 = 0.0F;
            }
            else if (flag1)
            {
                f3 = 1.0F;
            }
        }
        else
        {
            f2 = 0.0F;
            f3 = 1.0F;
        }

        this.setBlockBounds(f, 0.0F, f2, f1, 1.0F, f3);
    }

    public final boolean canPaneConnectToBlock(Block blockIn)
    {
        return blockIn.isFullBlock() || blockIn == this || blockIn == Blocks.glass || blockIn == Blocks.stained_glass || blockIn == Blocks.stained_glass_pane || blockIn instanceof BlockMyPane;
    }

    protected boolean canSilkHarvest()
    {
        return true;
    }

    @SideOnly(Side.CLIENT)
    public EnumWorldBlockLayer getBlockLayer()
    {
        return EnumWorldBlockLayer.CUTOUT_MIPPED;
    }

    /**
     * Convert the BlockState into the correct metadata value
     */
    public int getMetaFromState(IBlockState state)
    {
        return 0;
    }

    protected BlockState createBlockState()
    {
        return new BlockState(this, new IProperty[] {NORTH, EAST, WEST, SOUTH});
    }

    public boolean canPaneConnectTo(IBlockAccess world, BlockPos pos, EnumFacing dir)
    {
        BlockPos off = pos.offset(dir);
        Block block = world.getBlockState(off).getBlock();
        return canPaneConnectToBlock(block) || block.isSideSolid(world, off, dir.getOpposite());
    }
}