a5 0.7.3

High-performance Rust implementation of the A5 hierarchical spatial indexing system
Documentation 
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// A5
// SPDX-License-Identifier: Apache-2.0
// Copyright (c) A5 contributors

// Computed empirically from cell boundary vertex sharing at resolution 4.

// Face adjacency table: FACE_ADJACENCY[originId][quintant] = (adjOriginId, adjQuintant)
//
// For each quintant on each face, this gives the primary adjacent face/quintant
// that shares the base edge.
pub const FACE_ADJACENCY: [[(u8, usize); 5]; 12] = [
    [(1, 2), (4, 3), (5, 4), (6, 0), (11, 1)],  // origin 0
    [(2, 3), (4, 4), (0, 0), (11, 0), (10, 1)], // origin 1
    [(9, 2), (3, 0), (4, 0), (1, 0), (10, 0)],  // origin 2
    [(2, 1), (9, 1), (8, 1), (5, 1), (4, 1)],   // origin 3
    [(2, 2), (3, 4), (5, 0), (0, 1), (1, 1)],   // origin 4
    [(4, 2), (3, 3), (8, 0), (6, 1), (0, 2)],   // origin 5
    [(0, 3), (5, 3), (8, 4), (7, 1), (11, 2)],  // origin 6
    [(11, 3), (6, 3), (8, 3), (9, 4), (10, 3)], // origin 7
    [(5, 2), (3, 2), (9, 0), (7, 2), (6, 2)],   // origin 8
    [(8, 2), (3, 1), (2, 0), (10, 4), (7, 3)],  // origin 9
    [(2, 4), (1, 4), (11, 4), (7, 4), (9, 3)],  // origin 10
    [(1, 3), (0, 4), (6, 4), (7, 0), (10, 2)],  // origin 11
];