bot_proto

from PIL import Image
import time

dark = 10

while True:
    
    # get new this

    left = {}
    right = {}
    total = {}
    for pic in ['this','last']:

        image = Image.open(pic+'.png')

        left[pic] = 0
        right[pic] = 0

        N = image.size[0]*image.size[1]

        for x in range(image.size[0]):
            for y in range(image.size[1]):
                b = max(image.getpixel((x,y))[0:3])
                if x<float(image.size[0])/2:
                    left[pic] += float(b)/(float(N)/2)
                else:
                    right[pic] += float(b)/(float(N)/2)

        total[pic] = (left[pic]+right[pic])/2
    
    if total['this']>dark and total['last']>dark:
    
        if total['this']>=total['last']:
            print('left motor forwards '+str(float(100*right['this'])/255))
            print('right motor forwards '+str(float(100*left['this'])/255))
        else:
            speed = float(100*(total['last']-total['this']))/255
            print('left motor backwards '+ str(speed) )
            print('right motor backwards '+ str(speed) )
            
    image = Image.open('this.png')
    image.save('last.png')
            
    time.sleep(1)