garynewby / gameoflife

Conways's Game of life in Swift and SpriteKit

Game of life

A cellular automaton devised by the British mathematician John Horton Conway in 1970.
The 4 simple rules below are applied to each cell in the system each pass, and the
state of each cell is calculated as alive or dead. From this intricate life-like
forms evolve over time.

Rules:

1. Any live cell with less than two live neighbours dies, as if caused by under-population.
2. Any live cell with two or three live neighbours lives on to the next generation.
3. Any live cell with more than three live neighbours dies, as if by overcrowding.
4. Any dead cell with exactly three live neighbours becomes a live cell, as if by reproduction.

Implementation

Swift, SpriteKit and UIKit

Notes

Tap "New" to start from a random state, and "Pause/Continue" to halt or continue iterating.
Tap any cell to change it's state while running or stopped, to influence the patterns that will evolve.

Author

Gary Newby

License

Licensed under the MIT License.