Examples with BlockPistonStructureHelper net.minecraft.block.state.BlockPistonStructureHelper used on opensource projects

Example 1 with BlockPistonStructureHelper

use of net.minecraft.block.state.BlockPistonStructureHelper in project SpongeCommon by SpongePowered.

the class SpongeCommonEventFactory method handlePistonEvent.

/**
 * This simulates the blocks a piston moves and calls the event for saner
 * debugging.
 *
 * @return if the event was cancelled
 */
public static boolean handlePistonEvent(IMixinWorldServer world, WorldServer.ServerBlockEventList list, Object obj, BlockPos pos, Block blockIn, int eventId, int eventParam) {
    boolean extending = (eventId == 0);
    final IBlockState blockstate = ((net.minecraft.world.World) world).getBlockState(pos);
    EnumFacing direction = blockstate.getValue(BlockDirectional.FACING);
    final LocatableBlock locatable = LocatableBlock.builder().location(new Location<>((World) world, pos.getX(), pos.getY(), pos.getZ())).state((BlockState) blockstate).build();
    // Sets toss out duplicate values (even though there shouldn't be any)
    HashSet<Location<org.spongepowered.api.world.World>> locations = new HashSet<>();
    locations.add(new Location<>((World) world, pos.getX(), pos.getY(), pos.getZ()));
    BlockPistonStructureHelper movedBlocks = new BlockPistonStructureHelper((WorldServer) world, pos, direction, extending);
    // calculates blocks to be moved
    movedBlocks.canMove();
    Stream.concat(movedBlocks.getBlocksToMove().stream(), movedBlocks.getBlocksToDestroy().stream()).map(block -> new Location<>((World) world, block.getX(), block.getY(), block.getZ())).collect(// SUPER
    Collectors.toCollection(() -> locations));
    // If the piston is extending and there are no blocks to destroy, add the offset location for protection purposes
    if (extending && movedBlocks.getBlocksToDestroy().isEmpty()) {
        final List<BlockPos> movedPositions = movedBlocks.getBlocksToMove();
        BlockPos offsetPos;
        // If there are no blocks to move, add the offset of piston
        if (movedPositions.isEmpty()) {
            offsetPos = pos.offset(direction);
        } else {
            // Add the offset of last block set to move
            offsetPos = movedPositions.get(movedPositions.size() - 1).offset(direction);
        }
        locations.add(new Location<>((World) world, offsetPos.getX(), offsetPos.getY(), offsetPos.getZ()));
    }
    try (StackFrame frame = Sponge.getCauseStackManager().pushCauseFrame()) {
        if (extending) {
            Sponge.getCauseStackManager().addContext(EventContextKeys.PISTON_EXTEND, world.asSpongeWorld());
        } else {
            Sponge.getCauseStackManager().addContext(EventContextKeys.PISTON_RETRACT, world.asSpongeWorld());
        }
        return SpongeCommonEventFactory.callChangeBlockEventPre(world, ImmutableList.copyOf(locations), locatable).isCancelled();
    }
}