Applied-Energistics-2/src/main/java/appeng/block/misc/BlockQuartzFixture.java

/*
 * This file is part of Applied Energistics 2.
 * Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
 *
 * Applied Energistics 2 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Applied Energistics 2 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.block.misc;


import appeng.api.util.IOrientable;
import appeng.api.util.IOrientableBlock;
import appeng.block.AEBaseBlock;
import appeng.client.render.effects.LightningFX;
import appeng.core.AEConfig;
import appeng.core.AppEng;
import appeng.helpers.MetaRotation;
import net.minecraft.block.Block;
import net.minecraft.block.BlockState;
import net.minecraft.block.Blocks;
import net.minecraft.block.SoundType;
import net.minecraft.block.material.Material;
import net.minecraft.item.BlockItemUseContext;
import net.minecraft.state.BooleanProperty;
import net.minecraft.state.DirectionProperty;
import net.minecraft.state.StateContainer;
import net.minecraft.state.properties.BlockStateProperties;
import net.minecraft.util.Direction;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.shapes.ISelectionContext;
import net.minecraft.util.math.shapes.VoxelShape;
import net.minecraft.util.math.shapes.VoxelShapes;
import net.minecraft.world.IBlockReader;
import net.minecraft.world.IWorld;
import net.minecraft.world.IWorldReader;
import net.minecraft.world.World;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.api.distmarker.OnlyIn;

import javax.annotation.Nullable;
import java.util.EnumMap;
import java.util.Map;
import java.util.Random;


public class BlockQuartzFixture extends AEBaseBlock implements IOrientableBlock
{

	// Cache VoxelShapes for each facing
	private static final Map<Direction, VoxelShape> SHAPES;

	static {
		SHAPES = new EnumMap<>(Direction.class);

		for (Direction facing : Direction.values()) {
			final double xOff = -0.3 * facing.getXOffset();
			final double yOff = -0.3 * facing.getYOffset();
			final double zOff = -0.3 * facing.getZOffset();
			VoxelShape shape = VoxelShapes.create(new AxisAlignedBB(xOff + 0.3, yOff + 0.3, zOff + 0.3, xOff + 0.7, yOff + 0.7, zOff + 0.7));
			SHAPES.put(facing, shape);
		}
	}

	// Cannot use the vanilla FACING property here because it excludes facing DOWN
	public static final DirectionProperty FACING = BlockStateProperties.FACING;

	// Used to alternate between two variants of the fixture on adjacent blocks
	public static final BooleanProperty ODD = BooleanProperty.create( "odd" );

	public BlockQuartzFixture()
	{
		super(Block.Properties.create(Material.MISCELLANEOUS).doesNotBlockMovement().hardnessAndResistance(0, 0).lightValue(14).sound(SoundType.GLASS));

		this.setDefaultState( getDefaultState().with( FACING, Direction.UP ).with( ODD, false ) );
		this.setFullSize( false );
		this.setOpaque( false );
	}

	@Override
	protected void fillStateContainer(StateContainer.Builder<Block, BlockState> builder) {
		builder.add(FACING, ODD);
	}

	// For reference, see WallTorchBlock
	@Nullable
	public BlockState getStateForPlacement(BlockItemUseContext context) {
		BlockState blockstate = super.getStateForPlacement(context);
		BlockPos pos = context.getPos();

		// Set the even/odd property
		boolean oddPlacement = ( ( pos.getX() + pos.getY() + pos.getZ() ) % 2 ) != 0;
		blockstate = blockstate.with( ODD, oddPlacement );

		IWorldReader iworldreader = context.getWorld();
		Direction[] adirection = context.getNearestLookingDirections();

		for(Direction direction : adirection) {
			if (canPlaceAt(iworldreader, pos, direction)) {
				return blockstate.with(FACING, direction.getOpposite());
			}
		}

		return null;
	}

	// Break the fixture if the block it is attached to is changed so that it could no longer be placed
	@Override
	public BlockState updatePostPlacement(BlockState state, Direction facing, BlockState facingState, IWorld worldIn, BlockPos pos, BlockPos facingPos) {
		Direction fixtureFacing = state.get(FACING);
		if (facing.getOpposite() == fixtureFacing && !canPlaceAt(worldIn, pos, facing)) {
			return Blocks.AIR.getDefaultState();
		}
		return state;
	}

// FIXME	@Override
// FIXME	public boolean isValidOrientation( final World w, final BlockPos pos, final Direction forward, final Direction up )
// FIXME	{
// FIXME		return this.canPlaceAt( w, pos, up.getOpposite() );
// FIXME	}

	private boolean canPlaceAt( final IWorldReader w, final BlockPos pos, final Direction dir )
	{
		final BlockPos test = pos.offset( dir );
		BlockState blockstate = w.getBlockState(test);
		return blockstate.isSolidSide(w, test, dir.getOpposite());
	}

	@Override
	public VoxelShape getShape(BlockState state, IBlockReader worldIn, BlockPos pos, ISelectionContext context) {
		Direction facing = state.get(FACING);
		return SHAPES.get(facing);
	}

	@Override
	@OnlyIn( Dist.CLIENT )
	public void animateTick( final BlockState state, final World w, final BlockPos pos, final Random r )
	{
		if( !AEConfig.instance().isEnableEffects() )
		{
			return;
		}

		if( r.nextFloat() < 0.98 )
		{
			return;
		}

		final Direction up = this.getOrientable( w, pos ).getUp();
		final double xOff = -0.3 * up.getXOffset();
		final double yOff = -0.3 * up.getYOffset();
		final double zOff = -0.3 * up.getZOffset();
		for( int bolts = 0; bolts < 3; bolts++ )
		{
			if( AppEng.proxy.shouldAddParticles( r ) )
			{
				w.addParticle(LightningFX.TYPE, xOff + 0.5 + pos.getX(), yOff + 0.5 + pos.getY(), zOff + 0.5 + pos.getZ(), 0, 0, 0);
			}
		}
	}

	// FIXME: Replaced by the postPlaceupdate stuff above
//	@Override
//	public void neighborChanged( BlockState state, World world, BlockPos pos, Block blockIn, BlockPos fromPos )
//	{
//		final Direction up = this.getOrientable( world, pos ).getUp();
//		if( !this.canPlaceAt( world, pos, up.getOpposite() ) )
//		{
//			this.dropTorch( world, pos );
//		}
//	}
//
	private void dropTorch( final World w, final BlockPos pos )
	{
		final BlockState prev = w.getBlockState( pos );
		w.destroyBlock( pos, true );
		w.notifyBlockUpdate( pos, prev, w.getBlockState( pos ), 3 );
	}

	@Override
	public boolean isValidPosition(BlockState state, IWorldReader w, BlockPos pos)
	{
		for( final Direction dir : Direction.values() )
		{
			if( this.canPlaceAt( w, pos, dir ) )
			{
				return true;
			}
		}
		return false;
	}

	@Override
	public IOrientable getOrientable( final IBlockReader w, final BlockPos pos )
	{
		return new MetaRotation( w, pos, FACING );
	}

	@Override
	public boolean isOpaque()
	{
		return false;
	}

}