sensescroll.py

from sense_hat import SenseHat

sense = SenseHat()

r = (255, 0, 0)
o = (255, 127, 0)
y = (255, 255, 0)
g = (0, 255, 0)
b = (0, 0, 255)
i = (75, 0, 130)
v = (159, 0, 255)
e = (0, 0, 0)


def getScrollImage(offset, image):
    stride = int(len(image)/8)
    if offset + 8 < stride:
        line0 = image[offset+0*stride:offset+0*stride+8]
        line1 = image[offset+1*stride:offset+1*stride+8]
        line2 = image[offset+2*stride:offset+2*stride+8]
        line3 = image[offset+3*stride:offset+3*stride+8]
        line4 = image[offset+4*stride:offset+4*stride+8]
        line5 = image[offset+5*stride:offset+5*stride+8]
        line6 = image[offset+6*stride:offset+6*stride+8]
        line7 = image[offset+7*stride:offset+7*stride+8]
        
    else :
        print ("not handling wrapping around yet")
        line0 = image[0+0*stride:0+0*stride+8]
        line1 = image[0+1*stride:0+1*stride+8]
        line2 = image[0+2*stride:0+2*stride+8]
        line3 = image[0+3*stride:0+3*stride+8]
        line4 = image[0+4*stride:0+4*stride+8]
        line5 = image[0+5*stride:0+5*stride+8]
        line6 = image[0+6*stride:0+6*stride+8]
        line7 = image[0+7*stride:0+7*stride+8]

    output = line0 + line1 + line2 + line3+line4+line5+line6+line7
    return output

image = [
e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,
e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,
e,e,i,e,e,e,e,e,e,e,e,o,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,
e,e,i,e,e,e,e,e,e,e,e,o,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,
e,e,i,e,e,e,e,e,o,o,o,o,o,o,o,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,
e,e,i,e,e,e,e,e,e,e,e,o,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,
e,e,i,e,e,e,e,e,e,e,e,o,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,
e,e,i,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,e,

]


offset = 0

while True:
    scrollimage=getScrollImage(offset,image)
    sense.set_pixels(scrollimage)
    x=input("+,- or q to quit")
    if x=='+':
        offset+=1
    if x == '-':           
        offset-=1
    if offset>=len(image)/8:
        offset=0
    if offset<0:
        offset = len(image)/8 -1
    if x=='q':
        break