EaglercraftX-1.8-workspace/src/main/java/net/minecraft/block/BlockPistonBase.java

package net.minecraft.block;

import java.util.List;

import net.minecraft.block.material.Material;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.properties.PropertyBool;
import net.minecraft.block.properties.PropertyDirection;
import net.minecraft.block.state.BlockPistonStructureHelper;
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.entity.EntityLivingBase;
import net.minecraft.init.Blocks;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.tileentity.TileEntityPiston;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.BlockPos;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.MathHelper;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;

/**+
 * This portion of EaglercraftX contains deobfuscated Minecraft 1.8 source code.
 * 
 * Minecraft 1.8.8 bytecode is (c) 2015 Mojang AB. "Do not distribute!"
 * Mod Coder Pack v9.18 deobfuscation configs are (c) Copyright by the MCP Team
 * 
 * EaglercraftX 1.8 patch files (c) 2022-2024 lax1dude, ayunami2000. All Rights Reserved.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 */
public class BlockPistonBase extends Block {
	public static final PropertyDirection FACING = PropertyDirection.create("facing");
	public static final PropertyBool EXTENDED = PropertyBool.create("extended");
	private final boolean isSticky;

	public BlockPistonBase(boolean isSticky) {
		super(Material.piston);
		this.setDefaultState(this.blockState.getBaseState().withProperty(FACING, EnumFacing.NORTH)
				.withProperty(EXTENDED, Boolean.valueOf(false)));
		this.isSticky = isSticky;
		this.setStepSound(soundTypePiston);
		this.setHardness(0.5F);
		this.setCreativeTab(CreativeTabs.tabRedstone);
	}

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

	/**+
	 * Called by ItemBlocks after a block is set in the world, to
	 * allow post-place logic
	 */
	public void onBlockPlacedBy(World world, BlockPos blockpos, IBlockState iblockstate,
			EntityLivingBase entitylivingbase, ItemStack var5) {
		world.setBlockState(blockpos,
				iblockstate.withProperty(FACING, getFacingFromEntity(world, blockpos, entitylivingbase)), 2);
	}

	/**+
	 * Called by ItemBlocks just before a block is actually set in
	 * the world, to allow for adjustments to the IBlockstate
	 */
	public IBlockState onBlockPlaced(World world, BlockPos blockpos, EnumFacing var3, float var4, float var5,
			float var6, int var7, EntityLivingBase entitylivingbase) {
		return this.getDefaultState().withProperty(FACING, getFacingFromEntity(world, blockpos, entitylivingbase))
				.withProperty(EXTENDED, Boolean.valueOf(false));
	}

	private void checkForMove(World worldIn, BlockPos pos, IBlockState state) {
		EnumFacing enumfacing = (EnumFacing) state.getValue(FACING);
		boolean flag = this.shouldBeExtended(worldIn, pos, enumfacing);
		if (flag && !((Boolean) state.getValue(EXTENDED)).booleanValue()) {
			if ((new BlockPistonStructureHelper(worldIn, pos, enumfacing, true)).canMove()) {
				worldIn.addBlockEvent(pos, this, 0, enumfacing.getIndex());
			}
		} else if (!flag && ((Boolean) state.getValue(EXTENDED)).booleanValue()) {
			worldIn.setBlockState(pos, state.withProperty(EXTENDED, Boolean.valueOf(false)), 2);
			worldIn.addBlockEvent(pos, this, 1, enumfacing.getIndex());
		}

	}

	private boolean shouldBeExtended(World worldIn, BlockPos pos, EnumFacing facing) {
		for (EnumFacing enumfacing : EnumFacing.values()) {
			if (enumfacing != facing && worldIn.isSidePowered(pos.offset(enumfacing), enumfacing)) {
				return true;
			}
		}

		if (worldIn.isSidePowered(pos, EnumFacing.DOWN)) {
			return true;
		} else {
			BlockPos blockpos = pos.up();

			for (EnumFacing enumfacing1 : EnumFacing.values()) {
				if (enumfacing1 != EnumFacing.DOWN
						&& worldIn.isSidePowered(blockpos.offset(enumfacing1), enumfacing1)) {
					return true;
				}
			}

			return false;
		}
	}

	/**+
	 * Called on both Client and Server when World#addBlockEvent is
	 * called
	 */
	public boolean onBlockEventReceived(World world, BlockPos blockpos, IBlockState iblockstate, int i, int j) {
		EnumFacing enumfacing = (EnumFacing) iblockstate.getValue(FACING);
		if (i == 0) {
			if (!this.doMove(world, blockpos, enumfacing, true)) {
				return false;
			}

			world.setBlockState(blockpos, iblockstate.withProperty(EXTENDED, Boolean.valueOf(true)), 2);
			world.playSoundEffect((double) blockpos.getX() + 0.5D, (double) blockpos.getY() + 0.5D,
					(double) blockpos.getZ() + 0.5D, "tile.piston.out", 0.5F, world.rand.nextFloat() * 0.25F + 0.6F);
		} else if (i == 1) {
			TileEntity tileentity1 = world.getTileEntity(blockpos.offset(enumfacing));
			if (tileentity1 instanceof TileEntityPiston) {
				((TileEntityPiston) tileentity1).clearPistonTileEntity();
			}

			world.setBlockState(blockpos,
					Blocks.piston_extension.getDefaultState().withProperty(BlockPistonMoving.FACING, enumfacing)
							.withProperty(BlockPistonMoving.TYPE,
									this.isSticky ? BlockPistonExtension.EnumPistonType.STICKY
											: BlockPistonExtension.EnumPistonType.DEFAULT),
					3);
			world.setTileEntity(blockpos,
					BlockPistonMoving.newTileEntity(this.getStateFromMeta(j), enumfacing, false, true));
			if (this.isSticky) {
				BlockPos blockpos1 = blockpos.add(enumfacing.getFrontOffsetX() * 2, enumfacing.getFrontOffsetY() * 2,
						enumfacing.getFrontOffsetZ() * 2);
				Block block = world.getBlockState(blockpos1).getBlock();
				boolean flag1 = false;
				if (block == Blocks.piston_extension) {
					TileEntity tileentity = world.getTileEntity(blockpos1);
					if (tileentity instanceof TileEntityPiston) {
						TileEntityPiston tileentitypiston = (TileEntityPiston) tileentity;
						if (tileentitypiston.getFacing() == enumfacing && tileentitypiston.isExtending()) {
							tileentitypiston.clearPistonTileEntity();
							flag1 = true;
						}
					}
				}

				if (!flag1 && block.getMaterial() != Material.air
						&& canPush(block, world, blockpos1, enumfacing.getOpposite(), false)
						&& (block.getMobilityFlag() == 0 || block == Blocks.piston || block == Blocks.sticky_piston)) {
					this.doMove(world, blockpos, enumfacing, false);
				}
			} else {
				world.setBlockToAir(blockpos.offset(enumfacing));
			}

			world.playSoundEffect((double) blockpos.getX() + 0.5D, (double) blockpos.getY() + 0.5D,
					(double) blockpos.getZ() + 0.5D, "tile.piston.in", 0.5F, world.rand.nextFloat() * 0.15F + 0.6F);
		}

		return true;
	}

	public void setBlockBoundsBasedOnState(IBlockAccess iblockaccess, BlockPos blockpos) {
		IBlockState iblockstate = iblockaccess.getBlockState(blockpos);
		if (iblockstate.getBlock() == this && ((Boolean) iblockstate.getValue(EXTENDED)).booleanValue()) {
			float f = 0.25F;
			EnumFacing enumfacing = (EnumFacing) iblockstate.getValue(FACING);
			if (enumfacing != null) {
				switch (enumfacing) {
				case DOWN:
					this.setBlockBounds(0.0F, 0.25F, 0.0F, 1.0F, 1.0F, 1.0F);
					break;
				case UP:
					this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.75F, 1.0F);
					break;
				case NORTH:
					this.setBlockBounds(0.0F, 0.0F, 0.25F, 1.0F, 1.0F, 1.0F);
					break;
				case SOUTH:
					this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 0.75F);
					break;
				case WEST:
					this.setBlockBounds(0.25F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
					break;
				case EAST:
					this.setBlockBounds(0.0F, 0.0F, 0.0F, 0.75F, 1.0F, 1.0F);
				}
			}
		} else {
			this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
		}

	}

	/**+
	 * 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);
	}

	/**+
	 * Add all collision boxes of this Block to the list that
	 * intersect with the given mask.
	 */
	public void addCollisionBoxesToList(World world, BlockPos blockpos, IBlockState iblockstate,
			AxisAlignedBB axisalignedbb, List<AxisAlignedBB> list, Entity entity) {
		this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
		super.addCollisionBoxesToList(world, blockpos, iblockstate, axisalignedbb, list, entity);
	}

	public AxisAlignedBB getCollisionBoundingBox(World world, BlockPos blockpos, IBlockState iblockstate) {
		this.setBlockBoundsBasedOnState(world, blockpos);
		return super.getCollisionBoundingBox(world, blockpos, iblockstate);
	}

	public boolean isFullCube() {
		return false;
	}

	public static EnumFacing getFacing(int meta) {
		int i = meta & 7;
		return i > 5 ? null : EnumFacing.getFront(i);
	}

	public static EnumFacing getFacingFromEntity(World worldIn, BlockPos clickedBlock, EntityLivingBase entityIn) {
		if (MathHelper.abs((float) entityIn.posX - (float) clickedBlock.getX()) < 2.0F
				&& MathHelper.abs((float) entityIn.posZ - (float) clickedBlock.getZ()) < 2.0F) {
			double d0 = entityIn.posY + (double) entityIn.getEyeHeight();
			if (d0 - (double) clickedBlock.getY() > 2.0D) {
				return EnumFacing.UP;
			}

			if ((double) clickedBlock.getY() - d0 > 0.0D) {
				return EnumFacing.DOWN;
			}
		}

		return entityIn.getHorizontalFacing().getOpposite();
	}

	public static boolean canPush(Block blockIn, World worldIn, BlockPos pos, EnumFacing direction,
			boolean allowDestroy) {
		if (blockIn == Blocks.obsidian) {
			return false;
		} else if (!worldIn.getWorldBorder().contains(pos)) {
			return false;
		} else if (pos.getY() >= 0 && (direction != EnumFacing.DOWN || pos.getY() != 0)) {
			if (pos.getY() <= worldIn.getHeight() - 1
					&& (direction != EnumFacing.UP || pos.getY() != worldIn.getHeight() - 1)) {
				if (blockIn != Blocks.piston && blockIn != Blocks.sticky_piston) {
					if (blockIn.getBlockHardness(worldIn, pos) == -1.0F) {
						return false;
					}

					if (blockIn.getMobilityFlag() == 2) {
						return false;
					}

					if (blockIn.getMobilityFlag() == 1) {
						if (!allowDestroy) {
							return false;
						}

						return true;
					}
				} else if (((Boolean) worldIn.getBlockState(pos).getValue(EXTENDED)).booleanValue()) {
					return false;
				}

				return !(blockIn instanceof ITileEntityProvider);
			} else {
				return false;
			}
		} else {
			return false;
		}
	}

	private boolean doMove(World worldIn, BlockPos pos, EnumFacing direction, boolean extending) {
		if (!extending) {
			worldIn.setBlockToAir(pos.offset(direction));
		}

		BlockPistonStructureHelper blockpistonstructurehelper = new BlockPistonStructureHelper(worldIn, pos, direction,
				extending);
		List list = blockpistonstructurehelper.getBlocksToMove();
		List list1 = blockpistonstructurehelper.getBlocksToDestroy();
		if (!blockpistonstructurehelper.canMove()) {
			return false;
		} else {
			int i = list.size() + list1.size();
			Block[] ablock = new Block[i];
			EnumFacing enumfacing = extending ? direction : direction.getOpposite();

			for (int j = list1.size() - 1; j >= 0; --j) {
				BlockPos blockpos = (BlockPos) list1.get(j);
				Block block = worldIn.getBlockState(blockpos).getBlock();
				block.dropBlockAsItem(worldIn, blockpos, worldIn.getBlockState(blockpos), 0);
				worldIn.setBlockToAir(blockpos);
				--i;
				ablock[i] = block;
			}

			for (int k = list.size() - 1; k >= 0; --k) {
				BlockPos blockpos2 = (BlockPos) list.get(k);
				IBlockState iblockstate = worldIn.getBlockState(blockpos2);
				Block block1 = iblockstate.getBlock();
				block1.getMetaFromState(iblockstate);
				worldIn.setBlockToAir(blockpos2);
				blockpos2 = blockpos2.offset(enumfacing);
				worldIn.setBlockState(blockpos2,
						Blocks.piston_extension.getDefaultState().withProperty(FACING, direction), 4);
				worldIn.setTileEntity(blockpos2,
						BlockPistonMoving.newTileEntity(iblockstate, direction, extending, false));
				--i;
				ablock[i] = block1;
			}

			BlockPos blockpos1 = pos.offset(direction);
			if (extending) {
				BlockPistonExtension.EnumPistonType blockpistonextension$enumpistontype = this.isSticky
						? BlockPistonExtension.EnumPistonType.STICKY
						: BlockPistonExtension.EnumPistonType.DEFAULT;
				IBlockState iblockstate1 = Blocks.piston_head.getDefaultState()
						.withProperty(BlockPistonExtension.FACING, direction)
						.withProperty(BlockPistonExtension.TYPE, blockpistonextension$enumpistontype);
				IBlockState iblockstate2 = Blocks.piston_extension.getDefaultState()
						.withProperty(BlockPistonMoving.FACING, direction)
						.withProperty(BlockPistonMoving.TYPE, this.isSticky ? BlockPistonExtension.EnumPistonType.STICKY
								: BlockPistonExtension.EnumPistonType.DEFAULT);
				worldIn.setBlockState(blockpos1, iblockstate2, 4);
				worldIn.setTileEntity(blockpos1, BlockPistonMoving.newTileEntity(iblockstate1, direction, true, false));
			}

			for (int l = list1.size() - 1; l >= 0; --l) {
				worldIn.notifyNeighborsOfStateChange((BlockPos) list1.get(l), ablock[i++]);
			}

			for (int i1 = list.size() - 1; i1 >= 0; --i1) {
				worldIn.notifyNeighborsOfStateChange((BlockPos) list.get(i1), ablock[i++]);
			}

			if (extending) {
				worldIn.notifyNeighborsOfStateChange(blockpos1, Blocks.piston_head);
				worldIn.notifyNeighborsOfStateChange(pos, this);
			}

			return true;
		}
	}

	/**+
	 * Possibly modify the given BlockState before rendering it on
	 * an Entity (Minecarts, Endermen, ...)
	 */
	public IBlockState getStateForEntityRender(IBlockState var1) {
		return this.getDefaultState().withProperty(FACING, EnumFacing.UP);
	}

	/**+
	 * Convert the given metadata into a BlockState for this Block
	 */
	public IBlockState getStateFromMeta(int i) {
		return this.getDefaultState().withProperty(FACING, getFacing(i)).withProperty(EXTENDED,
				Boolean.valueOf((i & 8) > 0));
	}

	/**+
	 * Convert the BlockState into the correct metadata value
	 */
	public int getMetaFromState(IBlockState iblockstate) {
		int i = 0;
		i = i | ((EnumFacing) iblockstate.getValue(FACING)).getIndex();
		if (((Boolean) iblockstate.getValue(EXTENDED)).booleanValue()) {
			i |= 8;
		}

		return i;
	}

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