nodes method
Implementation
void nodes(VoronoiDiagramCallback callback) {
for (var y = 0; y < _countY - 1; y++) {
for (var x = 0; x < _countX - 1; x++) {
final i = x + y * _countX;
final a = _diagram[i]!;
final b = _diagram[i + 1]!;
final c = _diagram[i + _countX]!;
final d = _diagram[i + 1 + _countX]!;
if (b != c) {
if (a != b && a != c) {
callback.call(a.particle, b.particle, c.particle);
}
if (d != b && d != c) {
callback.call(b.particle, d.particle, c.particle);
}
}
}
}
}