Examples with BlockChange org.spongepowered.common.world.BlockChange used on opensource projects

Example 1 with BlockChange

use of org.spongepowered.common.world.BlockChange in project SpongeCommon by SpongePowered.

the class TrackingUtil method throwMultiEventsAndCreatePost.

public static ChangeBlockEvent.Post throwMultiEventsAndCreatePost(ImmutableList<Transaction<BlockSnapshot>>[] transactionArrays, List<ChangeBlockEvent> blockEvents, ChangeBlockEvent[] mainEvents) {
    if (!blockEvents.isEmpty()) {
        try (StackFrame frame = Sponge.getCauseStackManager().pushCauseFrame()) {
            for (BlockChange blockChange : BlockChange.values()) {
                final ChangeBlockEvent mainEvent = mainEvents[blockChange.ordinal()];
                if (mainEvent != null) {
                    Sponge.getCauseStackManager().pushCause(mainEvent);
                }
            }
            final ImmutableList<Transaction<BlockSnapshot>> transactions = transactionArrays[MULTI_CHANGE_INDEX];
            final ChangeBlockEvent.Post post = SpongeEventFactory.createChangeBlockEventPost(Sponge.getCauseStackManager().getCurrentCause(), transactions);
            SpongeImpl.postEvent(post);
            return post;
        }
    }
    return null;
}

Example 2 with BlockChange

use of org.spongepowered.common.world.BlockChange in project SpongeCommon by SpongePowered.

the class CustomExplosionState method processBlockCaptures.

@SuppressWarnings({ "unchecked" })
private void processBlockCaptures(List<BlockSnapshot> snapshots, Explosion explosion, Cause cause, PhaseContext<?> context) {
    if (snapshots.isEmpty()) {
        return;
    }
    ImmutableList<Transaction<BlockSnapshot>>[] transactionArrays = new ImmutableList[TrackingUtil.EVENT_COUNT];
    ImmutableList.Builder<Transaction<BlockSnapshot>>[] transactionBuilders = new ImmutableList.Builder[TrackingUtil.EVENT_COUNT];
    for (int i = 0; i < TrackingUtil.EVENT_COUNT; i++) {
        transactionBuilders[i] = new ImmutableList.Builder<>();
    }
    final List<ChangeBlockEvent> blockEvents = new ArrayList<>();
    for (BlockSnapshot snapshot : snapshots) {
        // This processes each snapshot to assign them to the correct event in the next area, with the
        // correct builder array entry.
        TrackingUtil.TRANSACTION_PROCESSOR.apply(transactionBuilders).accept(TrackingUtil.TRANSACTION_CREATION.apply(snapshot));
    }
    for (int i = 0; i < TrackingUtil.EVENT_COUNT; i++) {
        // Build each event array
        transactionArrays[i] = transactionBuilders[i].build();
    }
    // Clear captured snapshots after processing them
    context.getCapturedBlocksOrEmptyList().clear();
    final ChangeBlockEvent[] mainEvents = new ChangeBlockEvent[BlockChange.values().length];
    // case in point for WorldTick event listeners since the players are captured non-deterministically
    try (StackFrame frame = Sponge.getCauseStackManager().pushCauseFrame()) {
        if (context.getNotifier().isPresent()) {
            Sponge.getCauseStackManager().addContext(EventContextKeys.NOTIFIER, context.getNotifier().get());
        }
        if (context.getOwner().isPresent()) {
            Sponge.getCauseStackManager().addContext(EventContextKeys.OWNER, context.getOwner().get());
        }
        try {
            this.associateAdditionalCauses(this, context);
        } catch (Exception e) {
        // TODO - this should be a thing to associate additional objects in the cause, or context, but for now it's just a simple
        // try catch to avoid bombing on performing block changes.
        }
        // Creates the block events accordingly to the transaction arrays
        // Needs to throw events
        iterateChangeBlockEvents(transactionArrays, blockEvents, mainEvents);
        // Copied from TrackingUtil#throwMultiEventsAndCreatePost
        for (BlockChange blockChange : BlockChange.values()) {
            final ChangeBlockEvent mainEvent = mainEvents[blockChange.ordinal()];
            if (mainEvent != null) {
                Sponge.getCauseStackManager().pushCause(mainEvent);
            }
        }
        final ImmutableList<Transaction<BlockSnapshot>> transactions = transactionArrays[TrackingUtil.MULTI_CHANGE_INDEX];
        final ExplosionEvent.Post postEvent = SpongeEventFactory.createExplosionEventPost(cause, explosion, transactions);
        if (postEvent == null) {
            // Means that we have had no actual block changes apparently?
            return;
        }
        SpongeImpl.postEvent(postEvent);
        final List<Transaction<BlockSnapshot>> invalid = new ArrayList<>();
        boolean noCancelledTransactions = true;
        // transactions of the preceeding block events)
        for (ChangeBlockEvent blockEvent : blockEvents) {
            // Need to only check if the event is cancelled, If it is, restore
            if (blockEvent.isCancelled()) {
                noCancelledTransactions = false;
                // Don't restore the transactions just yet, since we're just marking them as invalid for now
                for (Transaction<BlockSnapshot> transaction : Lists.reverse(blockEvent.getTransactions())) {
                    transaction.setValid(false);
                }
            }
        }
        // Finally check the post event
        if (postEvent.isCancelled()) {
            // Of course, if post is cancelled, just mark all transactions as invalid.
            noCancelledTransactions = false;
            for (Transaction<BlockSnapshot> transaction : postEvent.getTransactions()) {
                transaction.setValid(false);
            }
        }
        // Because after, we will restore all the invalid transactions in reverse order.
        for (Transaction<BlockSnapshot> transaction : postEvent.getTransactions()) {
            if (!transaction.isValid()) {
                invalid.add(transaction);
                // Cancel any block drops performed, avoids any item drops, regardless
                final Location<World> location = transaction.getOriginal().getLocation().orElse(null);
                if (location != null) {
                    final BlockPos pos = ((IMixinLocation) (Object) location).getBlockPos();
                    context.getBlockItemDropSupplier().removeAllIfNotEmpty(pos);
                }
            }
        }
        if (!invalid.isEmpty()) {
            // We need to set this value and return it to signify that some transactions were cancelled
            noCancelledTransactions = false;
            // or the events were cancelled), again in reverse order of which they were received.
            for (Transaction<BlockSnapshot> transaction : Lists.reverse(invalid)) {
                transaction.getOriginal().restore(true, BlockChangeFlags.NONE);
                // Cancel any block drops or harvests for the block change.
                // This prevents unnecessary spawns.
                final Location<World> location = transaction.getOriginal().getLocation().orElse(null);
                if (location != null) {
                    final BlockPos pos = ((IMixinLocation) (Object) location).getBlockPos();
                    context.getBlockDropSupplier().removeAllIfNotEmpty(pos);
                }
            }
        }
        TrackingUtil.performBlockAdditions(postEvent.getTransactions(), this, context, noCancelledTransactions);
    }
}

Example 3 with BlockChange

use of org.spongepowered.common.world.BlockChange in project SpongeCommon by SpongePowered.

the class TrackingUtil method iterateChangeBlockEvents.

public static void iterateChangeBlockEvents(ImmutableList<Transaction<BlockSnapshot>>[] transactionArrays, List<ChangeBlockEvent> blockEvents, ChangeBlockEvent[] mainEvents) {
    for (BlockChange blockChange : BlockChange.values()) {
        if (blockChange == BlockChange.DECAY) {
            // Decay takes place after.
            continue;
        }
        if (!transactionArrays[blockChange.ordinal()].isEmpty()) {
            final ChangeBlockEvent event = blockChange.createEvent(Sponge.getCauseStackManager().getCurrentCause(), transactionArrays[blockChange.ordinal()]);
            mainEvents[blockChange.ordinal()] = event;
            if (event != null) {
                SpongeImpl.postEvent(event);
                blockEvents.add(event);
            }
        }
    }
    if (!transactionArrays[BlockChange.DECAY.ordinal()].isEmpty()) {
        // Needs to be placed into iterateChangeBlockEvents
        final ChangeBlockEvent event = BlockChange.DECAY.createEvent(Sponge.getCauseStackManager().getCurrentCause(), transactionArrays[BlockChange.DECAY.ordinal()]);
        mainEvents[BlockChange.DECAY.ordinal()] = event;
        if (event != null) {
            SpongeImpl.postEvent(event);
            blockEvents.add(event);
        }
    }
}

Example 4 with BlockChange

use of org.spongepowered.common.world.BlockChange in project SpongeCommon by SpongePowered.

the class ExplosionState method processBlockCaptures.

@SuppressWarnings({ "unchecked" })
private void processBlockCaptures(List<BlockSnapshot> snapshots, Explosion explosion, PhaseContext<?> context) {
    if (snapshots.isEmpty()) {
        return;
    }
    ImmutableList<Transaction<BlockSnapshot>>[] transactionArrays = new ImmutableList[TrackingUtil.EVENT_COUNT];
    ImmutableList.Builder<Transaction<BlockSnapshot>>[] transactionBuilders = new ImmutableList.Builder[TrackingUtil.EVENT_COUNT];
    for (int i = 0; i < TrackingUtil.EVENT_COUNT; i++) {
        transactionBuilders[i] = new ImmutableList.Builder<>();
    }
    final List<ChangeBlockEvent> blockEvents = new ArrayList<>();
    for (BlockSnapshot snapshot : snapshots) {
        // This processes each snapshot to assign them to the correct event in the next area, with the
        // correct builder array entry.
        TrackingUtil.TRANSACTION_PROCESSOR.apply(transactionBuilders).accept(TrackingUtil.TRANSACTION_CREATION.apply(snapshot));
    }
    for (int i = 0; i < TrackingUtil.EVENT_COUNT; i++) {
        // Build each event array
        transactionArrays[i] = transactionBuilders[i].build();
    }
    // Clear captured snapshots after processing them
    context.getCapturedBlocksOrEmptyList().clear();
    final ChangeBlockEvent[] mainEvents = new ChangeBlockEvent[BlockChange.values().length];
    // case in point for WorldTick event listeners since the players are captured non-deterministically
    try (CauseStackManager.StackFrame frame = Sponge.getCauseStackManager().pushCauseFrame()) {
        try {
            this.associateAdditionalCauses(this, context);
        } catch (Exception e) {
        // TODO - this should be a thing to associate additional objects in the cause, or context, but for now it's just a simple
        // try catch to avoid bombing on performing block changes.
        }
        // Creates the block events accordingly to the transaction arrays
        // Needs to throw events
        iterateChangeBlockEvents(transactionArrays, blockEvents, mainEvents);
        // Copied from TrackingUtil#throwMultiEventsAndCreatePost
        for (BlockChange blockChange : BlockChange.values()) {
            final ChangeBlockEvent mainEvent = mainEvents[blockChange.ordinal()];
            if (mainEvent != null) {
                Sponge.getCauseStackManager().pushCause(mainEvent);
            }
        }
        final ImmutableList<Transaction<BlockSnapshot>> transactions = transactionArrays[TrackingUtil.MULTI_CHANGE_INDEX];
        final ExplosionEvent.Post postEvent = SpongeEventFactory.createExplosionEventPost(Sponge.getCauseStackManager().getCurrentCause(), explosion, transactions);
        if (postEvent == null) {
            // Means that we have had no actual block changes apparently?
            return;
        }
        SpongeImpl.postEvent(postEvent);
        final List<Transaction<BlockSnapshot>> invalid = new ArrayList<>();
        boolean noCancelledTransactions = true;
        // transactions of the preceeding block events)
        for (ChangeBlockEvent blockEvent : blockEvents) {
            // Need to only check if the event is cancelled, If it is, restore
            if (blockEvent.isCancelled()) {
                noCancelledTransactions = false;
                // Don't restore the transactions just yet, since we're just marking them as invalid for now
                for (Transaction<BlockSnapshot> transaction : Lists.reverse(blockEvent.getTransactions())) {
                    transaction.setValid(false);
                }
            }
        }
        // Finally check the post event
        if (postEvent.isCancelled()) {
            // Of course, if post is cancelled, just mark all transactions as invalid.
            noCancelledTransactions = false;
            for (Transaction<BlockSnapshot> transaction : postEvent.getTransactions()) {
                transaction.setValid(false);
            }
        }
        // Because after, we will restore all the invalid transactions in reverse order.
        for (Transaction<BlockSnapshot> transaction : postEvent.getTransactions()) {
            if (!transaction.isValid()) {
                invalid.add(transaction);
                final Location<World> location = transaction.getOriginal().getLocation().orElse(null);
                if (location != null) {
                    // Cancel any block drops performed, avoids any item drops, regardless
                    final BlockPos pos = ((IMixinLocation) (Object) location).getBlockPos();
                    context.getBlockItemDropSupplier().removeAllIfNotEmpty(pos);
                    context.getBlockEntitySpawnSupplier().removeAllIfNotEmpty(pos);
                    context.getBlockEntitySpawnSupplier().removeAllIfNotEmpty(pos);
                }
            }
        }
        if (!invalid.isEmpty()) {
            // We need to set this value and return it to signify that some transactions were cancelled
            noCancelledTransactions = false;
            // or the events were cancelled), again in reverse order of which they were received.
            for (Transaction<BlockSnapshot> transaction : Lists.reverse(invalid)) {
                transaction.getOriginal().restore(true, BlockChangeFlags.NONE);
                if (this.tracksBlockSpecificDrops()) {
                    // Cancel any block drops or harvests for the block change.
                    // This prevents unnecessary spawns.
                    final Location<World> location = transaction.getOriginal().getLocation().orElse(null);
                    if (location != null) {
                        final BlockPos pos = ((IMixinLocation) (Object) location).getBlockPos();
                        context.getBlockDropSupplier().removeAllIfNotEmpty(pos);
                    }
                }
            }
        }
        TrackingUtil.performBlockAdditions(postEvent.getTransactions(), this, context, noCancelledTransactions);
    }
}