ActuallyAdditions/src/main/java/de/ellpeck/actuallyadditions/mod/blocks/BlockWallAA.java

package de.ellpeck.actuallyadditions.mod.blocks;

import de.ellpeck.actuallyadditions.mod.blocks.base.BlockBase;
import net.minecraft.block.Block;
import net.minecraft.block.BlockFenceGate;
import net.minecraft.block.BlockWall;
import net.minecraft.block.SoundType;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.BlockStateContainer;
import net.minecraft.block.state.IBlockState;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.init.Blocks;
import net.minecraft.item.ItemStack;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.NonNullList;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.IBlockAccess;
import net.minecraftforge.common.ToolType;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class BlockWallAA extends Block {

    protected static final AxisAlignedBB[] AABB_BY_INDEX = new AxisAlignedBB[] { new AxisAlignedBB(0.25D, 0.0D, 0.25D, 0.75D, 1.0D, 0.75D), new AxisAlignedBB(0.25D, 0.0D, 0.25D, 0.75D, 1.0D, 1.0D), new AxisAlignedBB(0.0D, 0.0D, 0.25D, 0.75D, 1.0D, 0.75D), new AxisAlignedBB(0.0D, 0.0D, 0.25D, 0.75D, 1.0D, 1.0D), new AxisAlignedBB(0.25D, 0.0D, 0.0D, 0.75D, 1.0D, 0.75D), new AxisAlignedBB(0.3125D, 0.0D, 0.0D, 0.6875D, 0.875D, 1.0D), new AxisAlignedBB(0.0D, 0.0D, 0.0D, 0.75D, 1.0D, 0.75D), new AxisAlignedBB(0.0D, 0.0D, 0.0D, 0.75D, 1.0D, 1.0D), new AxisAlignedBB(0.25D, 0.0D, 0.25D, 1.0D, 1.0D, 0.75D), new AxisAlignedBB(0.25D, 0.0D, 0.25D, 1.0D, 1.0D, 1.0D), new AxisAlignedBB(0.0D, 0.0D, 0.3125D, 1.0D, 0.875D, 0.6875D), new AxisAlignedBB(0.0D, 0.0D, 0.25D, 1.0D, 1.0D, 1.0D), new AxisAlignedBB(0.25D, 0.0D, 0.0D, 1.0D, 1.0D, 0.75D), new AxisAlignedBB(0.25D, 0.0D, 0.0D, 1.0D, 1.0D, 1.0D), new AxisAlignedBB(0.0D, 0.0D, 0.0D, 1.0D, 1.0D, 0.75D), new AxisAlignedBB(0.0D, 0.0D, 0.0D, 1.0D, 1.0D, 1.0D) };
    protected static final AxisAlignedBB[] CLIP_AABB_BY_INDEX = new AxisAlignedBB[] { AABB_BY_INDEX[0].setMaxY(1.5D), AABB_BY_INDEX[1].setMaxY(1.5D), AABB_BY_INDEX[2].setMaxY(1.5D), AABB_BY_INDEX[3].setMaxY(1.5D), AABB_BY_INDEX[4].setMaxY(1.5D), AABB_BY_INDEX[5].setMaxY(1.5D), AABB_BY_INDEX[6].setMaxY(1.5D), AABB_BY_INDEX[7].setMaxY(1.5D), AABB_BY_INDEX[8].setMaxY(1.5D), AABB_BY_INDEX[9].setMaxY(1.5D), AABB_BY_INDEX[10].setMaxY(1.5D), AABB_BY_INDEX[11].setMaxY(1.5D), AABB_BY_INDEX[12].setMaxY(1.5D), AABB_BY_INDEX[13].setMaxY(1.5D), AABB_BY_INDEX[14].setMaxY(1.5D), AABB_BY_INDEX[15].setMaxY(1.5D) };

    @SuppressWarnings("deprecation")
    public BlockWallAA(Block blocc) {
        super(Block.Properties.create(blocc.getDefaultState().getMaterial())
                .hardnessAndResistance(1.5f, 10.0f)
                .harvestTool(blocc.getDefaultState().getHarvestTool())
                .sound(blocc.getDefaultState().getSoundType()));

        this.setDefaultState(this.blockState.getBaseState().withProperty(BlockWall.UP, false).withProperty(BlockWall.NORTH, false).withProperty(BlockWall.EAST, false).withProperty(BlockWall.SOUTH, false).withProperty(BlockWall.WEST, false));
    }

    private static int yesThisIsCopyPastedFromBlockWallAndIHaveNoIdeaWhatThisMethodDoes(IBlockState state) {
        int i = 0;

        if (state.getValue(BlockWall.NORTH)) {
            i |= 1 << EnumFacing.NORTH.getHorizontalIndex();
        }

        if (state.getValue(BlockWall.EAST)) {
            i |= 1 << EnumFacing.EAST.getHorizontalIndex();
        }

        if (state.getValue(BlockWall.SOUTH)) {
            i |= 1 << EnumFacing.SOUTH.getHorizontalIndex();
        }

        if (state.getValue(BlockWall.WEST)) {
            i |= 1 << EnumFacing.WEST.getHorizontalIndex();
        }

        return i;
    }

    @Override
    public IBlockState getActualState(IBlockState state, IBlockAccess worldIn, BlockPos pos) {
        boolean flag = this.canConnectTo(worldIn, pos.north());
        boolean flag1 = this.canConnectTo(worldIn, pos.east());
        boolean flag2 = this.canConnectTo(worldIn, pos.south());
        boolean flag3 = this.canConnectTo(worldIn, pos.west());
        boolean flag4 = flag && !flag1 && flag2 && !flag3 || !flag && flag1 && !flag2 && flag3;
        return state.withProperty(BlockWall.UP, !flag4 || !worldIn.isAirBlock(pos.up())).withProperty(BlockWall.NORTH, flag).withProperty(BlockWall.EAST, flag1).withProperty(BlockWall.SOUTH, flag2).withProperty(BlockWall.WEST, flag3);
    }

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

    @Override
    public boolean isPassable(IBlockAccess worldIn, BlockPos pos) {
        return false;
    }

    @Override
    @SideOnly(Side.CLIENT)
    @Deprecated
    public boolean shouldSideBeRendered(IBlockState blockState, IBlockAccess blockAccess, BlockPos pos, EnumFacing side) {
        return side != EnumFacing.DOWN || super.shouldSideBeRendered(blockState, blockAccess, pos, side);
    }

    @Override
    public AxisAlignedBB getBoundingBox(IBlockState state, IBlockAccess source, BlockPos pos) {
        state = this.getActualState(state, source, pos);
        return AABB_BY_INDEX[yesThisIsCopyPastedFromBlockWallAndIHaveNoIdeaWhatThisMethodDoes(state)];
    }

    @Override
    public AxisAlignedBB getCollisionBoundingBox(IBlockState blockState, IBlockAccess worldIn, BlockPos pos) {
        blockState = this.getActualState(blockState, worldIn, pos);
        return CLIP_AABB_BY_INDEX[yesThisIsCopyPastedFromBlockWallAndIHaveNoIdeaWhatThisMethodDoes(blockState)];
    }

    @Override
    public boolean isOpaqueCube(IBlockState state) {
        return false;
    }

    @Override
    @SideOnly(Side.CLIENT)
    public void getSubBlocks(CreativeTabs tab, NonNullList<ItemStack> list) {
        list.add(new ItemStack(this, 1, 0));
    }

    public boolean canConnectTo(IBlockAccess worldIn, BlockPos pos) {
        IBlockState state = worldIn.getBlockState(pos);
        Block block = state.getBlock();
        return block != Blocks.BARRIER && (!(block != this && !(block instanceof BlockFenceGate)) || state.getMaterial().isOpaque() && state.isFullCube() && state.getMaterial() != Material.GOURD);
    }

    @Override
    public IBlockState getStateFromMeta(int meta) {
        return this.getDefaultState();
    }

    @Override
    public int getMetaFromState(IBlockState state) {
        return 0;
    }

    @Override
    protected BlockStateContainer createBlockState() {
        return new BlockStateContainer(this, BlockWall.UP, BlockWall.NORTH, BlockWall.EAST, BlockWall.WEST, BlockWall.SOUTH);
    }
}