public CraftBlockState(BlockSnapshot blocksnapshot)
{
    this.world = blocksnapshot.world.getWorld();
    this.x = blocksnapshot.x;
    this.y = blocksnapshot.y;
    this.z = blocksnapshot.z;
    this.type = net.minecraft.block.Block.getIdFromBlock(blocksnapshot.replacedBlock);
    this.light = (byte) blocksnapshot.replacedBlock.getLightValue();
    this.chunk = (CraftChunk) this.world.getBlockAt(this.x, this.y, this.z).getChunk();
    this.flag = 3;
    TileEntity te = this.world.getHandle().getTileEntity(this.x, this.y, this.z);
    if (te != null)
    {
        this.nbt = new NBTTagCompound();
        te.writeToNBT(this.nbt);
    }
    else
    {
        this.nbt = null;
    }

    this.createData((byte) blocksnapshot.meta);
}
 

public boolean place(IBlockState state, EnumFacing direction, EnumHand hand) {
	if (!world.isBlockLoaded(blockPos)) return false;

	if (spawnProtection) {
		if (!world.isBlockModifiable(player, blockPos)) return false;
	}

	final BlockSnapshot snapshot = BlockSnapshot.getBlockSnapshot(world, blockPos);

	if (!world.setBlockState(blockPos, state, blockPlaceFlags)) return false;

	if (ForgeEventFactory.onPlayerBlockPlace(player, snapshot, direction, hand).isCanceled()) {
		world.restoringBlockSnapshots = true;
		snapshot.restore(true, false);
		world.restoringBlockSnapshots = false;
		return false;
	}

	return true;
}
 

public boolean generateTree(Location loc, TreeType type, BlockChangeDelegate delegate) {
    world.captureTreeGeneration = true;
    world.captureBlockSnapshots = true;
    boolean grownTree = generateTree(loc, type);
    world.captureBlockSnapshots = false;
    world.captureTreeGeneration = false;
    if (grownTree) { // Copy block data to delegate
        for (BlockSnapshot blocksnapshot : this.world.capturedBlockSnapshots) {
            BlockPos position = blocksnapshot.getPos();
            int x = position.getX();
            int y = position.getY();
            int z = position.getZ();
            net.minecraft.block.state.IBlockState oldBlock = world.getBlockState(position);
            int typeId = net.minecraft.block.Block.getIdFromBlock(blocksnapshot.getReplacedBlock().getBlock());
            int data = blocksnapshot.getMeta();
            int flag = blocksnapshot.getFlag();
            delegate.setTypeIdAndData(x, y, z, typeId, data);
            IBlockState newBlock = world.getBlockState(position);
            world.markAndNotifyBlock(position, null, oldBlock, newBlock, flag);
        }
        world.capturedBlockSnapshots.clear();
        return true;
    } else {
        world.capturedBlockSnapshots.clear();
        return false;
    }
}
 

public CraftBlockState(BlockSnapshot blocksnapshot) {
    this.world = blocksnapshot.getWorld().getWorld();
    this.x = blocksnapshot.getPos().getX();
    this.y = blocksnapshot.getPos().getY();
    this.z = blocksnapshot.getPos().getZ();
    this.type = net.minecraft.block.Block.getIdFromBlock(blocksnapshot.getReplacedBlock().getBlock());
    this.chunk = (CraftChunk) this.world.getBlockAt(this.x, this.y, this.z).getChunk();
    this.flag = 3;
    this.nbt = blocksnapshot.getNbt();

    this.createData((byte) blocksnapshot.getMeta());
}
 

/**
 * Places the specified block into the world at the specified position if it is possible to do so without violating permission restrictions.
 *
 * @return <tt>true</tt> if the specified block was successfully placed into the world
 */
public static boolean placeBlock(@Nonnull World world, @Nonnull BlockPos pos, @Nonnull IBlockState state, @Nonnull EntityPlayerMP player) {
	if (!world.isBlockLoaded(pos)) return false;

	if (!hasEditPermission(pos, player)) return false;

	BlockEvent.PlaceEvent event = new BlockEvent.PlaceEvent(BlockSnapshot.getBlockSnapshot(world, pos), Blocks.AIR.getDefaultState(), player, player.getActiveHand());
	MinecraftForge.EVENT_BUS.post(event);

	if (event.isCanceled()) return false;

	world.setBlockState(pos, state);
	world.notifyBlockUpdate(pos, state, state, 3);
	return true;
}
 

public boolean generateTree(Location loc, TreeType type, BlockChangeDelegate delegate) {
    net.minecraft.world.gen.feature.WorldGenerator gen;
    switch (type) {
    case BIG_TREE:
        gen = new net.minecraft.world.gen.feature.WorldGenBigTree(true);
        break;
    case BIRCH:
        gen = new net.minecraft.world.gen.feature.WorldGenForest(true, false);
        break;
    case REDWOOD:
        gen = new net.minecraft.world.gen.feature.WorldGenTaiga2(true);
        break;
    case TALL_REDWOOD:
        gen = new net.minecraft.world.gen.feature.WorldGenTaiga1();
        break;
    case JUNGLE:
        gen = new net.minecraft.world.gen.feature.WorldGenMegaJungle(true, 10, 20, 3, 3); // Magic values as in BlockSapling
        break;
    case SMALL_JUNGLE:
        gen = new net.minecraft.world.gen.feature.WorldGenTrees(true, 4 + rand.nextInt(7), 3, 3, false);
        break;
    case JUNGLE_BUSH:
        gen = new net.minecraft.world.gen.feature.WorldGenShrub(3, 0);
        break;
    case RED_MUSHROOM:
        gen = new net.minecraft.world.gen.feature.WorldGenBigMushroom(1);
        break;
    case BROWN_MUSHROOM:
        gen = new net.minecraft.world.gen.feature.WorldGenBigMushroom(0);
        break;
    case SWAMP:
        gen = new net.minecraft.world.gen.feature.WorldGenSwamp();
        break;
    case ACACIA:
        gen = new net.minecraft.world.gen.feature.WorldGenSavannaTree(true);
        break;
    case DARK_OAK:
        gen = new net.minecraft.world.gen.feature.WorldGenCanopyTree(true);
        break;
    case MEGA_REDWOOD:
        gen = new net.minecraft.world.gen.feature.WorldGenMegaPineTree(true, rand.nextBoolean());
        break;
    case TALL_BIRCH:
        gen = new net.minecraft.world.gen.feature.WorldGenForest(true, true);
        break;
    case TREE:
    default:
        gen = new net.minecraft.world.gen.feature.WorldGenTrees(true);
        break;
    }

    world.captureTreeGeneration = true;
    world.captureBlockSnapshots = true;
    boolean grownTree = gen.generate(world, rand, loc.getBlockX(), loc.getBlockY(), loc.getBlockZ());
    world.captureBlockSnapshots = false;
    world.captureTreeGeneration = false;
    if (grownTree) { // Copy block data to delegate
        for (BlockSnapshot blocksnapshot : world.capturedBlockSnapshots) {
            int x = blocksnapshot.x;
            int y = blocksnapshot.y;
            int z = blocksnapshot.z;
            net.minecraft.block.Block oldBlock = world.getBlock(x, y, z); 
            int newId = net.minecraft.block.Block.getIdFromBlock(blocksnapshot.replacedBlock);
            int data = blocksnapshot.meta;
            int flag = blocksnapshot.flag;
            delegate.setTypeIdAndData(x, y, z, newId, data);
            net.minecraft.block.Block newBlock = world.getBlock(x, y, z); 
            world.markAndNotifyBlock(x, y, z, null, oldBlock, newBlock, flag);
        }
        world.capturedBlockSnapshots.clear();
        return true;
    }
    else {
        world.capturedBlockSnapshots.clear();
        return false;
    }
}