Changelog

1.1.0.14

Fixed

• pathIndex off-by-one (FlyingItemData.java): pathIndex started at 0, targeting the item's own source position. For 2-node paths, this caused instant teleport on the next tick. Changed to pathIndex = 1.
• Last-node position snap removed (advanceFlight): item now flies the final approach instead of teleporting.
• Food priority removed (serveNextFurnace): ores and food treated equally — first smeltable item in any chest goes in. Fuel no longer blocks input dispatch.
• trySendInput cleaned up: removed dead foodOnly parameter.

Added

• Flight mode config (ModConfig.java): flightMode option with four modes — TELEPORT, DIRECT_LINEAR, MAGNET, PATHFINDING (default). Full descriptions in config comments.

Changed

• spawnFlight: only computes A*/ceiling path in PATHFINDING mode. Other modes use a direct 2-node path.
• tick/syncClients: skipped entirely in TELEPORT mode (age-only wait, then deposit).
• advanceFlight: handles null/empty path with direct lerp from source to target.

1.1.0.13

Fixed

• Waypoints bypassing LOS and ceiling-routing: stale waypoints in WaypointSavedData (placed by PathWhistleItem) caused every flight to route source → waypoint → target via plain A*, ignoring LOS fast-path and ceiling-routing. All items converged on the same fixed coordinate. Removed !waypoints.isEmpty() early return.

1.1.0.12

Fixed

• hasLineOfSight3D block pass-through: two math errors caused items to clip through walls:
  • steps = ceil(distance) → steps = ceil(max(|dx|,|dy|,|dz|)) — guaranteed at least one sample per block on the longest axis.
  • (int) Math.round(...) → BlockPos.containing(...) — floors correctly instead of rounding past block boundaries.

1.1.0.11

Added

• Direct 3D line-of-sight fast-path in findPath: before ceiling-rise or A*, checks if the direct 3D line from source to target is clear. When clear, items fly directly in a single diagonal segment.
• hasLineOfSight3D(Vec3, Vec3, Level) — DDA raycast in 3D at 1-block resolution.
• hasLineOfSight(BlockPos, BlockPos, Level) — 2D ceiling-level LOS for A* skip in findCeilingPath.

Changed

• findPath now attempts direct 3D LOS before ceiling-rise + A* fallback.

1.1.0.10

Changed

• Client-side spring smooth — replaced linear lerp with spring-damper follower.
• Client-side parametric drift — Lissajous-style sine offset at 60fps instead of server-side every 3 ticks.
• Reduced particles — random.nextInt(20) → frame % 20 == 0 (1 particle/sec/flight max).

Removed

• applyDrift from server sync, prevPosition from FlightBuffer, unused Shapes import.

1.1.0.9

Changed

• Sequential furnace dispatch: one furnace per 20 ticks (1s), round-robin via furnaceIndex. Fuel → food → other smeltable. No burst spawning.
• SCAN_INTERVAL: 40 → 20 ticks.
• Removed lastDispatchTick per-target cooldown (replaced by sequential dispatch).

Added

• furnaceIndex field in LinkAttachmentBlockEntity with NBT persistence.

1.1.0.8

Removed

• addChaos() from FlyingItemPathfinder — was offsetting path nodes by ±1.5 blocks, causing whip/snap oscillation.

Changed

• Last path segment (ceiling descent) is now instant — item teleports into machine on arrival.

1.1.0.7

Added

• lastDispatchTick per-target cooldown (100 ticks max 1 dispatch per target).
• countActiveFlightsTo(BlockPos, int slot) — slot-aware tracking.

Fixed

• Furnace starvation: tracked fuel/input independently per slot instead of a global cap.
• Fuel hoarding: max 2 coal waiting in fuel slot (was getMaxStackSize()).
• Non-fuel in wrong slots: depositItem returns early on slot mismatch.
• Input priority: two-pass dispatch — smeltable food first, then other items.

1.1.0.6

Fixed

• chestToFurnaceInput / chestToFurnaceFuel used return instead of break — skipped all other furnaces after serving the first.

Performance

• Container scan halved: getContainerPositionsInRange() computed once per tick, passed to both refuel and routing.
• A* iterations: 2000 → 400.
• Sync interval: 1 → 3 ticks.

1.1.0.5

Added

• countActiveFlightsTo(BlockPos) — counts in-flight items heading to a target.
• Max 4 simultaneous inbound flights per furnace (input + fuel combined).

Fixed

• Items cycling between unsorted chests — only move to labeled chests.
• FlightBuffer atomic reference swap — stops render flicker from racing.

1.1.0.4

Fixed

• Items cycling between unsorted chests — only move to labeled chests.
• FlightBuffer atomic reference swap — stops render flicker from racing.

1.1.0.3

Changed

• Flight path: rises to ceiling → A* across → drops to destination.
• Arch-aware collision: only full cubes block items (open doors, slabs, stairs passable).
• Each flight gets a unique slightly-offset path (chaos).
• Sinusoidal drift — items weave subtly during flight.
• Smooth glide interpolation — 60fps lerp between server ticks.

1.1.0.2

Fixed

• Startup fuel starvation — refuel before fuel check.
• hasActiveFlight using wrong position comparison.
• findBestChest now prefers sign-labeled chests first.
• Block model changed to full cube, blockstate no longer references removed FACING property.

Added

• Fuel-warning log message when out of coal.

1.1.0.1

Added

• Link Attachment is now a standalone logistics node (full block, no wall-facing).
• Auto-senses all containers within range (configurable 4–16 blocks).
• Furnace I/O — takes output to chests, feeds input/fuel from chests.
• Chest sorting by sign labels (Wood, Stone, Ore, Metal, Food, Misc).
• Auto-writes blank signs with matching category.
• Fuel system — consumes coal/charcoal from nearby chests.

Changed

• LinkNeedle is now an info/config tool (right-click = info, shift-right-click = cycle range).

Removed

• Old manual linking/target system.

1.0.4.6

Changed

• ConcurrentHashMap for thread safety.
• canAttackBlock returns false to prevent creative breakage.
• Debug info in "No output target stored" message.

1.0.4.5

Removed

• Entire GUI, menu, and packet code.
• Frequency, mode, filter system.
• Old two-click LinkNeedle pairing (LinkSavedData / OutputLinkSavedData).

Added

• LinkNeedle wand — right-click container sets output, right-click attachment links.
• LinkAttachment stores direct BlockPos target — no freq/mode/filter.
• Recipe: redstone + stone pressure plate.

Changed

• ServerTickHandler uses direct source→target item pushing.

1.0.4.4

Changed

• New GUI with ◄/► arrow frequency selector.
• Freq at top, mode/filter below, slots at bottom.
• Placement now faces toward container.

Fixed

• Filter buttons no longer overflow GUI bounds.
• Slot positions aligned with background blit.

1.0.4.3

Fixed

• GUI crash (renderBg infinite recursion with renderBackground).
• Placement direction.

1.0.4.2

Fixed

• Placement direction 180° off (restored player-facing).

1.0.4.1

Fixed

• GUI crash on menu open (null buffer).
• Hitbox 180° off from model.
• Block placement direction inverted.
• Missing texture warnings (wrong namespace).

Added

• Item model for inventory/hand icon.

1.0.4.0

Added

• Link Attachment block with GUI (frequency, mode, filter).
• Auto-pairing by frequency, whitelist/blacklist filtering.
• Attachment processing in scanner (every 40 ticks).
• Coexists with LinkNeedle direct links.

1.0.3.3

Added

• Output links: furnace → chest for smelted items.
• Output link processing in scanner.
• Bidirectional unlink: sneak-click either endpoint.

Changed

• LinkNeedle flow: clicking a furnace first marks it for output linking.
• depositItem handles both furnace deposits (slot 0/1) and chest deposits.

1.0.3.2

Fixed

• Flight tick was locked behind 40-tick scan interval — items now tick every game tick.
• Multiple items could fly simultaneously for the same link — hasActiveFlight() guard added.
• Particle frequency reduced: nextInt(3) → nextInt(20) (~5%/tick).
• Sync interval: 2 → 1 tick.

1.0.3.1

Fixed

• Crash: aStar() returned List.of() (immutable) — caller tried add(), causing UnsupportedOperationException when A* failed.

Changed

• LinkNeedle: normal click = link, sneak + click = unlink.

1.0.3

Fixed

• LinkNeedle double-processing on client+server in single player — client consumed pending chest before server could use it. All pendingChests operations guarded with level.isClientSide.

1.0.2

Fixed

• @EventBusSubscriber missing modid — furnace scanner never registered, no items ever flew.
• Added debug logging and LOG field to main mod class.

1.0.1

Changed

• Entity-based flight removed — deleted FlyingItemEntity, ModEntities, entity renderer.
• New data-driven flight — FlyingItemManager ticks flight state server-side, no entities.
• Furnace scanner — ServerTickHandler checks linked furnaces every 40 ticks.
• Persistent links — LinkSavedData, WaypointSavedData per dimension.
• Client sync — FlyingItemPacket custom payload.
• Client renderer — ClientFlyingItemRenderer via RenderLevelStageEvent.
• Link Needle — redesigned to two-click workflow (chest → furnace).

Fixed

• getBurnTime, SavedData, @EventBusSubscriber APIs for NeoForge 1.21.1.