commit 1947439a87a381aceb38ef93aa8845edf84171cd
parent 6638cf1338e3897ad8a076bf0208f729fea4a1dd
Author: Andrew Laack <andrew@laack.co>
Date: Tue, 25 Aug 2026 23:51:39 -0500
Game of life in pygame
Diffstat:
| A | grid/game-of-life.py | | | 82 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
1 file changed, 82 insertions(+), 0 deletions(-)
diff --git a/grid/game-of-life.py b/grid/game-of-life.py
@@ -0,0 +1,82 @@
+import pygame
+import random
+import pygame.locals
+import sys
+
+
+grid_size = int(sys.argv[1])
+living = int(sys.argv[2])
+
+
+pygame.init()
+
+WIDTH = 1500
+HEIGHT = 1500
+
+WHITE = (255,255,255)
+BLACK = (0,0,0)
+
+DISPLAY = pygame.display.set_mode((WIDTH,HEIGHT), pygame.RESIZABLE)
+
+
+def simulate(prior):
+ result = [row[:] for row in prior]
+
+ count = 0
+
+ for y in range(len(prior)):
+ for x in range(len(prior[y])):
+ neighbors = 0
+ for dx in range(-1,2):
+ for dy in range(-1,2):
+ if dx == 0 and dy == 0:
+ continue
+ if dx + x < 0 or dx + x >= len(prior[y]):
+ continue
+ if dy + y < 0 or dy + y >= len(prior):
+ continue
+ neighbors += prior[dy+y][dx+x]
+ is_alive = prior[y][x]
+ if neighbors == 3 or (is_alive and neighbors == 2):
+ result[y][x] = 1
+ count += 1
+ else:
+ # this is a copy of input...
+ result[y][x] = 0
+
+ return result
+
+
+def drawGrid(g):
+ blockSize = int(WIDTH / len(g))
+ for y in range(0, WIDTH, blockSize):
+ for x in range(0, HEIGHT, blockSize):
+ if g[int(y / blockSize)][int(x / blockSize)] == 1:
+ rect = pygame.Rect(x, y, blockSize, blockSize)
+ pygame.draw.rect(DISPLAY, WHITE, rect)
+ else:
+ rect = pygame.Rect(x, y, blockSize, blockSize)
+ pygame.draw.rect(DISPLAY, BLACK, rect)
+
+
+grid = [[0] * grid_size for _ in range(grid_size)]
+
+def seed(grid):
+ for i in range(0,living):
+ rnd_y = random.randint(0,len(grid) - 1)
+ rnd_x = random.randint(0,len(grid[0]) - 1)
+ grid[rnd_y][rnd_x] = 1
+
+seed(grid)
+
+while True:
+ for event in pygame.event.get():
+ if event.type == pygame.locals.QUIT:
+ pygame.quit()
+ exit()
+
+ grid = simulate(grid)
+
+ DISPLAY.fill(BLACK)
+ drawGrid(grid)
+ pygame.display.update()
