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# pyboard testing functions for CPython
import time
def delay(n):
#time.sleep(float(n) / 1000)
pass
rand_seed = 1
def rng():
global rand_seed
# for these choice of numbers, see P L'Ecuyer, "Tables of linear congruential generators of different sizes and good lattice structure"
rand_seed = (rand_seed * 653276) % 8388593
return rand_seed
# LCD testing object for PC
# uses double buffering
class LCD:
def __init__(self, port):
self.width = 128
self.height = 32
self.buf1 = [[0 for x in range(self.width)] for y in range(self.height)]
self.buf2 = [[0 for x in range(self.width)] for y in range(self.height)]
def light(self, value):
pass
def fill(self, value):
for y in range(self.height):
for x in range(self.width):
self.buf1[y][x] = self.buf2[y][x] = value
def show(self):
print('') # blank line to separate frames
for y in range(self.height):
for x in range(self.width):
self.buf1[y][x] = self.buf2[y][x]
for y in range(self.height):
row = ''.join(['*' if self.buf1[y][x] else ' ' for x in range(self.width)])
print(row)
def get(self, x, y):
if 0 <= x < self.width and 0 <= y < self.height:
return self.buf1[y][x]
else:
return 0
def pixel(self, x, y, value):
if 0 <= x < self.width and 0 <= y < self.height:
self.buf2[y][x] = value
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