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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sun Apr 19 19:57:38 2020
@author: timallan
"""
import random
import time
import matplotlib.pyplot as plt
def factorial(total_num_pixels):
fact = 1
for i in range(1, total_num_pixels + 1):
fact = fact * i
return(fact)
def combination(total_num_pixels, target_num_pixels_on):
# find number of distinct configurations
numerator = factorial(total_num_pixels)
denominator = factorial(target_num_pixels_on) * factorial(total_num_pixels - target_num_pixels_on)
num_possible_configs = int(numerator / denominator)
return(num_possible_configs)
def generate_random_configs(total_num_pixels, target_num_pixels_on):
pixel_config = [] # list to contain possible pixel configurations
num_distinct_configs = combination(total_num_pixels, target_num_pixels_on)
print("number of distinct combinations:", num_distinct_configs)
while len(pixel_config) < num_distinct_configs:
num_pixels_on = 0
random_configuration = [] # list contains a random confuration of pixels ON
for pixels in range (total_num_pixels):
randNum = random.randrange (0, 2)
random_configuration.append (randNum)
num_pixels_on += randNum
if num_pixels_on == target_num_pixels_on: # have we found a configuration that equals target_num_pixels_on
if random_configuration not in pixel_config:
pixel_config.append(random_configuration) # Add to list of pixel configurations
#print("combinations: ",pixel_config, end = "\n\n")
return pixel_config
def split_configs(configs_to_split):
# convert each configuration to *char_width* rows for Processing (eg - 4 rows, 3 columns)
num_of_rows = 3
split_pixel_config = []
for config in configs_to_split:
split_pixel_config = [ config [i:i + num_of_rows] for i in range(0, len(config), num_of_rows) ]
split_pixel_config.append(split_pixel_config)
return (split_pixel_config)
def convert_list_to_ProcessingArray(configs_to_convert):
# Convert Python list to String
pixel_config_string = str(configs_to_convert)
# replace [ ] with { } for Processing Array
processingArray = pixel_config_string.replace( "[", "{")
processingArray = processingArray.replace( "]", "}")
# add newLine for readability
processingArray = processingArray.replace( "}}, ", "}},\n")
return (processingArray)
def write_to_file(processingArray):
# write to txt file:
f = open ("_txt_files/write_to_file_pixelConfig__6_OF_20.txt", "w")
f.write (processingArray)
f.close()
# read from txt file to check:
f = open ("_txt_files/write_to_file_pixelConfig__6_OF_20.txt", "r")
#print(f.read())
total_num_pixels = 6
step = int(total_num_pixels / 3)
list_of_configs = []
for num_pixels_ON in range (1, total_num_pixels, step):
print("total num pixels =", total_num_pixels, "| pixels ON =", num_pixels_ON)
list_of_configs.append(generate_random_configs(total_num_pixels, num_pixels_ON))
print ("list of all possible combinations:")
print(list_of_configs, end = "\n\n")
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