MovingDay

MovingDay is an advanced structure relocation mod for Valheim that allows players to select, rotate, and move entire buildings and structures in real-time, complete with safety checks, container metal cargo handling, tamed animal transport, and automated terrain replication.

Features

Structure Selection: Select individual pieces (G) or target an entire building using connected BFS flood-fill selection (H). World-generated structures and dungeons are automatically protected and cannot be targeted.
Move Mode (L): Relocate the selected building in real-time using a blueprint ghost preview.
Height Adjustment: Smoothly raise or lower the structure placement height in Move Mode using configurable hotkeys (defaults: UpArrow / DownArrow), scroll wheel steps (Alt + Scroll), or reset it back to 0 (Home).
Grid-Snapped Rotations: Relocations are locked to standard Valheim 22.5 degree world-space increments, ensuring placed structures align perfectly with standard Hammer build snaps and center correctly.
Terrain Cloning & Reversion (Held LeftControl): Replicates and rotates excavations and terrain leveling to the destination, and restores the source terrain to its natural state.
Height Snapping: Automatically snaps the placement ghost to actual ground level or base height depending on whether terrain copying is active.
Safety & Metal Cargo Handling:
- Blocks placement if other players are in the footprint (or teleports them along with the building).
- Blocks movement or drops metal cargo into cargo crates depending on configurations.
Tamed Animal Transport: Scans and teleports tamed animals in a 6.0m radius of the structure safely to the destination.
ZDO Network Authority: Claims authority for ZDOs during relocation to ensure network synchronization without duplication or data loss.

Compatibility with Prefab Hammer

If you also have the Prefab Hammer mod installed, they will automatically work together:

Shared Selection: They share the exact same selection pool in memory. Highlighting a structure with MovingDay's select keys will immediately make it targetable by Prefab Hammer's save keys, and vice versa.
Coordinated Highlights: Selecting pieces in one mod keeps them visually highlighted, and clearing the selection in either mod cleans up both mods' highlight overlays.

Configuration & Default Keybindings

SelectHotkey (Default: G): Toggle selection of a hovered piece.
SelectConnectedHotkey (Default: H): Select all connected pieces of a structure.
MoveHotkey (Default: L): Enter Move Mode once pieces are selected.
HeightUpHotkey (Default: UpArrow): Raise the structure placement height in Move Mode.
HeightDownHotkey (Default: DownArrow): Lower the structure placement height in Move Mode.
TerrainModifierKey (Default: LeftControl): Hold during placement to copy/revert terrain.
ConnectionRadius (Default: 2.0 meters): Maximum distance between pieces to consider them connected.
PlayerSafetyAction (Default: Block): Handling for other players inside the footprint (Block, Teleport, Ignore).
PlayerMetalAction (Default: BlockMove): Handling for players carrying metal (Allow, BlockMove, LeaveBehind).
ChestSafetyAction (Default: Block): Handling for open/active containers (Block, Ignore).
ContainerMetalAction (Default: Block): Handling for container metal cargo (Allow, Block, Drop).
MoveTamedAnimals (Default: true): Teleport tamed animals inside the footprint.

Changelog

1.0.4

Migrated hotkey configuration types from text-based strings to direct KeyCode settings, allowing interactive keybind assignment via the BepInEx Configuration Manager GUI.

1.0.3

Added configurable structure height adjustment hotkeys (HeightUpHotkey and HeightDownHotkey, defaulting to UpArrow / DownArrow) and scroll wheel steps (Alt + Scroll) in Move Mode. Press Home to reset the height offset to 0.
Fixed Move Mode cancellation logic to prevent premature exits when equipping tools.
Fixed build placement ghost visibility conflicts in Move Mode.

1.0.2

Fixed selection of roofs and other large building pieces by measuring physical boundary (AABB collider bounds) distance instead of center-to-center distance, ensuring touching pieces are always selected regardless of size.
Increased selection spatial search radius to 250m to support massive structures.
Cached relative offsets and persistent ZDO references at Move Mode entry, preventing pieces from being left behind due to client-side unloading/culling during relocations.
Moved player/container safety checks and cargo dropping to Move Mode entry to give instant feedback and prevent culling exploits.

1.0.1

Fixed the BepInEx mod icon to use the correct MovingDay theme instead of PrefabHammer.
Updated mod version to 1.0.1.

1.0.0

Initial Release.