DualGrid 16

Class: PentaTileLayoutDualGrid16

DualGrid 16 uses a 4x4 atlas with one authored tile for each 4-bit corner mask. The mask bits are TL=1, TR=2, BL=4, and BR=8.

Use it when your art already follows the common 16-tile dual-grid convention and you want every state authored directly with no rotation reuse.

Template

Atlas contract

Property	Value
Grid	4 columns x 4 rows
Tile count	16
Mask bits	TL=1, TR=2, BL=4, BR=8
Dispatch	atlas_coords = Vector2i(mask % 4, mask / 4)
Grid type	dual-grid
Rotation reuse	none

Setup

1. Add PentaTileMapLayer.
2. Set layout to PentaTileLayoutDualGrid16.
3. Author or import a TileSetAtlasSource whose 4x4 cells match the mask order.
4. Paint normally. Empty tile_set uses the bundled fallback template.

Authoring notes

• Mask 0 is empty and erases the dual-grid display cell.
• Because this is dual-grid, the template uses quadrant silhouettes. A full painted logic region is formed by neighboring display cells together.
• Use this layout when each of the 16 states needs hand-authored detail.