Task: Conway's Game of Life







Python: cell_size = 10
sample = 10 
play = False   
last_cell = 0

def setup():
    global grid, next_grid, rows, cols
    size(800, 500)

    rows = height / cell_size
    cols = width / cell_size
    grid = empty_grid()
    next_grid = empty_grid()
    randomize_grid()

    println("Press 'space' to start/stop")
    println("'e' to clear all cells")
    println("'b' demonstrate 'blinker'")
    println("'g' demonstrate glider")
    println("'r' to randomize grid")
    println("'+' and '-' to change speed")

def draw():
    background(0)
    for i in range(cols):
        x = i * cell_size
        for j in range(rows):
            y = j * cell_size
            current_state = grid[i][j]
            fill(255)
            noStroke()
            if current_state:
                rect(x, y, cell_size, cell_size)
            if play:
                ngbs_alive = calc_ngbs_alive(i, j)
                result = rule(current_state, ngbs_alive)
                next_grid[i][j] = result
                
    if play and frameCount % sample == 0 and not mousePressed:
        step()

def rule(current, ngbs):
    
    if ngbs < 2 or ngbs > 3:
        return 0  
    elif ngbs == 3:
        return 1  
    else:
        return current  

def calc_ngbs_alive(i, j):
    NEIGHBOURS = ((-1, 00), (01, 00),  
                  (-1, -1), (00, -1),
                  (01, -1), (-1, 01),
                  (00, 01), (01, 01))
    alive = 0
    for iv, jv in NEIGHBOURS:
        alive += grid[(i + iv) % cols][(j + jv) % rows]
    return alive

def empty_grid():
    grid = []
    for _ in range(cols):
        grid.append([0] * rows)
    return grid

def randomize_grid():
    from random import choice
    for i in range(cols):
        for j in range(rows):
            grid[i][j] = choice((0, 1))

def step():
    global grid, next_grid
    grid = next_grid
    next_grid = empty_grid()

def keyReleased():
    global grid, play, sample
    if key == "e":
        grid = empty_grid()
    if key == "r":
        randomize_grid()
    if key == "g":
         grid[10][10:13] = [0, 1, 0]       
         grid[11][10:13] = [0, 0, 1]       
         grid[12][10:13] = [1, 1, 1]       
    if key == "b":
         grid[10][10:13] = [0, 1, 0]       
         grid[11][10:13] = [0, 1, 0]       
         grid[12][10:13] = [0, 1, 0]               
    if key == " ":
        play = not play 
    if  str(key) in '+=':
        sample = max(sample - 1, 1);
    if key == '-':
        sample += 1

def mousePressed():
    paint()
    
def mouseDragged():
    paint()

def paint():
    global last_cell
    i, j = mouseX // cell_size, mouseY // cell_size
    p = j * cols + i
    if p != last_cell:
        last_cell = p
        grid[i][j] = (1, 0)[grid[i][j]]





Ada: WITH Ada.Text_IO;  USE Ada.Text_IO;
 
PROCEDURE Life IS
   SUBTYPE Cell IS Natural RANGE 0 .. 1;

   TYPE Petri_Dish IS ARRAY (Positive RANGE <>, Positive RANGE <>) OF Cell;

   PROCEDURE Step (Gen : IN OUT Petri_Dish) IS
      Above       : ARRAY (Gen'Range (2)) OF Cell := (OTHERS => 0);
      Left, This  : Cell;
   BEGIN
      FOR I IN Gen'First (1) + 1 .. Gen'Last (1) - 1 LOOP
         Left := 0;
         FOR J IN Gen'First (2) + 1 .. Gen'Last (2) - 1 LOOP
            This := (CASE Above (J - 1) + Above (J) + Above (J + 1) +
                          Left			    + Gen (I, J + 1) +
                          Gen (I + 1, J - 1) + Gen (I + 1, J) 	+ Gen (I + 1, J + 1) IS
                        WHEN 2      => Gen (I, J),
                        WHEN 3      => 1,
                        WHEN OTHERS => 0);
            Above (J - 1):= Left;
            Left         := Gen (I, J);
            Gen (I, J) 	 := This;
         END LOOP;
         Above (Above'Last - 1) := Left;
      END LOOP;
   END Step;
 
   PROCEDURE Put (Gen : Petri_Dish) IS
   BEGIN
      FOR I IN Gen'Range (1) LOOP
         FOR J IN Gen'Range (2) LOOP
            Put ( if Gen (I, J) = 0 then " " else "#");
         END LOOP;
         New_Line;
      END LOOP;
   END Put;
 
   Blinker : Petri_Dish := (2 .. 4 => (0, 0, 1, 0, 0), 1 | 5 => (0, 0, 0, 0, 0));
   Glider  : Petri_Dish (1..6,1..11):= (2 => (3 => 1, others => 0),
                                        3 => (4 => 1, others => 0),
                                        4 => (2|3|4=>1, others => 0),
                                        others => (others => 0));
   PROCEDURE Put_And_Step_Generation (N : Positive; Name : String; P : IN OUT Petri_Dish) IS
   BEGIN
      FOR Generation IN 1 .. N LOOP
         Put_Line (Name & Generation'Img);
         Put (P);
         Step (P);
      END LOOP;
   END Put_And_Step_Generation;

BEGIN
   Put_And_Step_Generation (3, "Blinker", Blinker);
   Put_And_Step_Generation (5, "Glider", Glider);
END Life;