MCH2022 badge?
go to mch2022.badge.team

Content # Snake for the Card10 # 22.8.2019 # Jan Fecht import vibra # vibrate when dying import urandom # random food gen import utime import buttons import color import display game_width = 32 game_height = 16 num_start_tiles = 4 sleep_time_ms = 100 snake_col = color.GREEN food_col = color.RED bg_col = color.BLACK physical_width = 160 physical_height = 80 tile_width = physical_width // game_width tile_height = physical_height // game_height class Direction: UP = (0,-1) LEFT = (-1,0) RIGHT = (1,0) DOWN = (0,1) clockwise = [UP, RIGHT, DOWN, LEFT] def __init__(self, direction=LEFT): self.direction = direction def turn_clockwise(self): self.direction = self.clockwise[(self.clockwise.index(self.direction) + 1) % 4] def turn_counterclockwise(self): self.direction = self.clockwise[(self.clockwise.index(self.direction) - 1) % 4] class Game: def reset(self): self.pos = [(game_width // 2 + i, game_height // 2) for i in range(num_start_tiles)] self.tile_directions = [Direction.LEFT] * len(self.pos) self.direction = Direction(Direction.LEFT) self.grow = False #def is_valid_pos(p): # x,y = p # return 0 <= x < game_width and 0 <= y <= game_width #assert(all[is_valid_pos(p) for p in self.pos]) self.gen_new_food() def __init__(self): self.disp = display.open() self.disp.__enter__() self.reset() def __enter__(self): return self def __exit__ (self, t, value, tb): self.disp.__exit__() def gen_new_food(self): while True: self.food_pos = (urandom.randrange(0, game_width), urandom.randrange(0, game_height)) if self.food_pos not in self.pos: break def step(self, button): """ returns True if not Dead """ if button == buttons.BOTTOM_LEFT: self.direction.turn_counterclockwise() elif button == buttons.BOTTOM_RIGHT: self.direction.turn_clockwise() else: pass self.tile_directions.pop() self.tile_directions.insert(0,self.direction.direction) headx, heady = self.pos[0] if ((headx + self.direction.direction[0]) % game_width, (heady + self.direction.direction[1]) % game_height) in self.pos: return False last = self.pos[-1] for i in range(len(self.pos)): x, y = self.pos[i] deltax, deltay = self.tile_directions[i] self.pos[i] = ((x + deltax) % game_width, (y + deltay) % game_height) if self.grow: self.pos.append(last) self.tile_directions.append(self.tile_directions[-1]) self.grow = False if self.food_pos in self.pos: self.gen_new_food() self.grow = True return True def draw(self): self.disp.clear() self.disp.rect(0, 0, physical_width, physical_height, col=bg_col) for (x,y) in self.pos: self.disp.rect(x*tile_width, y*tile_width, (x+1)*tile_width, (y+1)*tile_height, col=snake_col) x,y = self.food_pos self.disp.rect(x*tile_width, y*tile_width, (x+1)*tile_width, (y+1)*tile_height, col=food_col) self.disp.update() def run(self): while True: self.draw() utime.sleep_ms(sleep_time_ms) b_pressed = buttons.read(buttons.BOTTOM_LEFT | buttons.BOTTOM_RIGHT) alive = self.step(b_pressed) if not alive: vibra.vibrate(100) self.disp.rect(0, 0, physical_width, physical_height, col=color.RED) self.disp.print("DED",bg=color.RED) self.disp.print("Length: {}".format(len(self.pos)),bg=color.RED,posy=30) self.disp.update() utime.sleep_ms(1000) buttons.read(buttons.BOTTOM_LEFT | buttons.BOTTOM_RIGHT | buttons.TOP_RIGHT) # clear the queue while True: b_pressed = buttons.read(buttons.BOTTOM_LEFT | buttons.BOTTOM_RIGHT | buttons.TOP_RIGHT) if b_pressed: break break def main(): with Game() as g: while True: g.reset() g.run() main()