Commit 0c3955b5 by Damien George

### examples: Update conwaylife to work with new LCD API.

parent 21ca2d76
 #import essential libraries import lcd import pyb lcd = pyb.LCD('x') lcd.light(1) # do 1 iteration of Conway's Game of Life def conway_step(): for x in range(128): # loop over x coordinates ... ... @@ -21,26 +23,24 @@ def conway_step(): # apply the rules of life if self and not (2 <= num_neighbours <= 3): lcd.reset(x, y) # not enough, or too many neighbours: cell dies lcd.pixel(x, y, 0) # not enough, or too many neighbours: cell dies elif not self and num_neighbours == 3: lcd.set(x, y) # exactly 3 neigbours around an empty cell: cell is born lcd.pixel(x, y, 1) # exactly 3 neigbours around an empty cell: cell is born # randomise the start def conway_rand(): lcd.clear() # clear the LCD lcd.fill(0) # clear the LCD for x in range(128): # loop over x coordinates for y in range(32): # loop over y coordinates if pyb.rand() & 1: # get a 1-bit random number lcd.set(x, y) # set the pixel randomly lcd.pixel(x, y, pyb.rng() & 1) # set the pixel randomly # loop for a certain number of frames, doing iterations of Conway's Game of Life def conway_go(num_frames): for i in range(num_frames): conway_step() # do 1 iteration lcd.show() # update the LCD pyb.delay(300) pyb.delay(50) # PC testing lcd = lcd.LCD(128, 32) # testing conway_rand() conway_go(1000) conway_go(100)
 # LCD testing object for PC # uses double buffering class LCD: def __init__(self, width, height): self.width = width self.height = height 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 clear(self): for y in range(self.height): for x in range(self.width): self.buf1[y][x] = self.buf2[y][x] = 0 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 reset(self, x, y): if 0 <= x < self.width and 0 <= y < self.height: self.buf2[y][x] = 0 def set(self, x, y): if 0 <= x < self.width and 0 <= y < self.height: self.buf2[y][x] = 1
 ... ... @@ -6,8 +6,44 @@ def delay(n): pass rand_seed = 1 def rand(): 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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