Nothing

```
#' @title Conway's Game of Life
#'
#' @description Model implementation for Conway's Game of Life.
#' @author John H. Conway
#' @usage
#' l <- init_landscape(c("1","0"), c(0.35,0.65), 150,150)
#' run <- ca(l, life)
#' @references Gardner, Martin (October 1970). Mathematical Games - The
#' fantastic combinations of John Conway's new solitaire game "life".
#' Scientific American 223. pp. 120–123. ISBN 0-89454-001-7.
#' @family models
#' @details
#' The Game of Life, also known simply as Life, is a cellular automaton devised
#' by the British mathematician John Horton Conway in 1970.
#'
#' The "game" is a zero-player game, meaning that its evolution is determined by
#' its initial state, requiring no further input. One interacts with the Game of
#' Life by creating an initial configuration and observing how it evolves or,
#' for advanced players, by creating patterns with particular properties.
#'
#' \strong{Rules}
#'
#' The universe of the Game of Life is an infinite two-dimensional orthogonal
#' grid of square cells, each of which is in one of two possible states, alive
#' or dead. Every cell interacts with its eight neighbours, which are the cells
#' that are horizontally, vertically, or diagonally adjacent. At each step in
#' time, the following transitions occur:
#'
#' \itemize{
#' \item Any live cell with fewer than two live neighbours dies, as if caused
#' by under-population.
#' \item Any live cell with two or three live neighbours lives on to the next
#' generation.
#' \item Any live cell with more than three live neighbours dies, as if by
#' overcrowding.
#' \item Any dead cell with exactly three live neighbours becomes a live cell,
#' as if by reproduction.
#' }
#'
#' The initial pattern constitutes the seed of the system. The first generation
#' is created by applying the above rules simultaneously to every cell in the
#' seed - births and deaths occur simultaneously, and the discrete moment at which
#' this happens is sometimes called a tick (in other words, each generation is a
#' pure function of the preceding one). The rules continue to be applied
#' repeatedly to create further generations.
#'
#'
#' Source: \href{https://en.wikipedia.org/wiki/Conway's_Game_of_Life}{Wikipedia}
#'
#'
#' @export
"life"
life <- list()
class(life) <- "ca_model"
life$name <- "Random model"
life$ref <- NA # a bibliographic reference
life$states <- c("1", "0")
life$cols <- c("black", "white")
# a list of default model parameters, used to validate input parameters.
life$interact <- matrix(c(1,2,3, 4,NA,6, 7,8,9), ncol = 3, byrow = TRUE)
life$parms <- list(
B = 3,
S = c(2,3)
)
# an update function
life$update <- function(x_old, parms) {
x_new <- x_old
neighb <- neighbors(x_old, "1")
# define update procedures depending on parms
x_new$cells[x_old$cells == "0" & neighb %in% parms$B] <- "1"
x_new$cells[x_old$cells == "1" & !neighb %in% parms$S] <- "0"
return(x_new)
}
```

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