gosperGliderGun property
Emits a glider every 15 iterations down and to the right.
Implementation
static final GridWorld gosperGliderGun = GridWorld.fromString('''
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.........................#............
.......................#.#............
.............##......##............##.
............#...#....##............##.
.##........#.....#...##...............
.##........#...#.##....#.#............
...........#.....#.......#............
............#...#.....................
.............##.......................
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''');