Lost Lily/Grid ToolkitDocs 1.0
Table of Contents
IntermediateValidated 1.0.0

Use Inventory across three topologies

What this teaches

These three scenes run one Inventory workflow on square, hexagonal, and triangular boards. A GridInventoryDragSession keeps the grabbed footprint cell anchored while public Inventory actions handle move, rotate, transfer, sort, quantity, and stack operations.

Open and run

Menu paths:

  • Tools > Lost Lily > Grid Toolkit > Samples > Open > Inventory > Square
  • Tools > Lost Lily > Grid Toolkit > Samples > Open > Inventory > Hex Variant
  • Tools > Lost Lily > Grid Toolkit > Samples > Open > Inventory > Triangle Variant

The catalog display names are Inventory Square, Inventory Hex, and Inventory Triangle. Inventory is a Preview-tier module; check the tier on each API page before depending on a contract.

Open one topology and enter Play Mode. Press-drag an item, press R while dragging to rotate, and release over a green preview to drop. Use Sort, Reset, or Cancel as labelled.

Square Inventory scene in Play Mode with two inventory boards, draggable items, quantities, and the controls panel visible.
Square Inventory uses rectangular footprints while preserving the shared drag, transfer, sort, and stack workflow.
Hex Inventory scene in Play Mode with two hexagonal boards, inventory items, quantities, and ready status visible.
Hex Inventory applies the same public Inventory operations to hexagonal coordinates and footprints.
Triangle Inventory scene in Play Mode with triangular boards, inventory items, and the status panel visible.
Triangle Inventory keeps the interaction model while triangular orientation changes the occupied footprint cells.

Try it

  1. Press-drag an item within its current board.
  2. Press R during the drag and watch the footprint preview rotate around the grabbed cell.
  3. Drop on a green target.
  4. Drag a compatible stack onto another stack and confirm quantities merge.
  5. Transfer an item to the other board, then use Sort.
  6. Repeat the workflow in the other two topology scenes.

Checkpoint

Valid drops move or transfer the item atomically; compatible stacks merge quantities. Invalid drops leave both boards unchanged and report why. Cancel ends the active drag. Reset restores the starting inventories.

How it works

Scene part Public system Responsibility
Board binding Ordinary board state and view Connects each inventory surface to its live state.
Drag session GridInventoryDragSession Retains source, item, anchor, and orientation during interaction.
Move action GridInventoryMoveItemAction Moves an item within one board.
Transfer operation GridInventoryTransferItemOperation Coordinates an atomic cross-board transfer.
Quantity renderer Inventory visualization Displays stack quantity without owning inventory state.

Try another variation

In a duplicated scene, change an item's footprint, stack limit, or starting quantity, then repeat the same test in another topology.

Troubleshooting

Symptom Fix
Dragging never begins. Press on an item, not an empty cell, and confirm the Input System and uGUI dependencies are resolved.
A drop stays invalid after rotation. Keep every footprint cell inside the target board and free of occupancy.
Stacks do not merge. Confirm item definition, stack compatibility, and capacity match.

Next sample

Continue with Build a module socket network.