blup/gameOfLife.py

import sys
import ast
import time as t
import random as r
import blup.animation
import blup.frame
import writebml

r.seed()

WIDTH = 22
HEIGHT = 16

COLOR_DEPTH = 256
COLORS = 3
DELAY = 300

DEAD = 0
DEADCOLOR = (0,0,0)
ALIVE = 1
ALIVECOLOR = (0,255,0)

dimension = blup.frame.FrameDimension(WIDTH, HEIGHT, COLOR_DEPTH, COLORS)
animation = blup.animation.Animation(dimension)

def generateRandomGameBoard():
    gameBoard = []
    for i in range(HEIGHT):
        xCoordinates = []
        for j in range(WIDTH):
            xCoordinates.append(r.randint(0, 1))
        gameBoard.append(xCoordinates)
    return gameBoard

def get_neighbors(x, y):
    for rowNumber in range(y-1, y+2):
        if 0 <= rowNumber < HEIGHT:
            for colNumber in range(x-1, x+2):
                if 0 <= colNumber < WIDTH:
                    if not (y==rowNumber and x==colNumber):
                        yield gameBoard[rowNumber][colNumber]

if len(sys.argv) == 1:
    gameBoard = generateRandomGameBoard()
    gameBoardIsSanitized = True
elif len(sys.argv) != 2:
    print("check args. found "+str(len(sys.argv)))
    exit()

if not gameBoardIsSanitized:
    gameBoard = ast.literal_eval(sys.argv[1])

    if len(gameBoard) != HEIGHT:
        print("len(gameBoard) != "+str(HEIGHT)+". counted "+str(len(gameBoard)))
        exit()

    for i in gameBoard:
        if len(i) != WIDTH:
            print("len(rows) != "+str(WIDTH)+". counted "+str(len(i)))
            exit()

for frame in range(500):
    # construct frame
    newframe = blup.animation.AnimationFrame(dimension, DELAY)
    for rowIndex in range(HEIGHT):
        for colIndex in range(WIDTH):
            cellStatus = gameBoard[rowIndex][colIndex]
            if cellStatus == ALIVE:
                newframe.setPixel(colIndex, rowIndex, ALIVECOLOR)
            else:
                newframe.setPixel(colIndex, rowIndex, DEADCOLOR)
    animation.addFrame(newframe)

    # calculate next step
    gameBoardNextStep = []
    for rowIndex in range(HEIGHT):
        newRow = []
        for colIndex in range(WIDTH):
            neighborList = list(get_neighbors(colIndex, rowIndex))
            aliveNeighbors = neighborList.count(1)
            if aliveNeighbors < 2:
                newRow.append(DEAD)
            elif aliveNeighbors == 2:
                newRow.append(gameBoard[rowIndex][colIndex])
            elif aliveNeighbors == 3:
                newRow.append(ALIVE)
            elif aliveNeighbors >= 4:
                newRow.append(DEAD)
        gameBoardNextStep.append(newRow)
    gameBoard = gameBoardNextStep
writebml.writeBml(animation, '/home/pi/animations/gameOfLife.bml')