class Renderer():
def __init__(self):
self.window = curses.initscr()
size = self.window.getmaxyx()
self.board = Board(size[1], size[0] - 1)
self.snake = Snake((int(size[1] / 2), int(size[0] / 2)))
self.apple = Apple(size[1], size[0] - 1)
self.input = Input()
curses.noecho()
curses.cbreak()
curses.curs_set(0)
self.window.keypad(True)
self.window.nodelay(True)
self.window.scrollok(False)
self.gameover = False
def update(self):
# Propagate user inputs
try:
instruction = self.input.get_instruction(self.window)
self.snake.process_instruction(instruction)
except exceptions.NoInputException:
pass # Just skip if there's no input
# Update game object state
self.snake.update()
# Did the snake eat the apple?
snakehead = self.snake.get_head_position()
if self.apple.overlaps(snakehead):
self.snake.grow()
self.apple.move()
# Check for game over
if self.board.is_outside_bounds(
snakehead) or self.snake.self_intersects():
self.gameover = True
self.board.game_over = True
self.snake.is_active = False
# Render
self.window.erase()
self.board.render(self.window)
self.snake.render(self.window)
self.apple.render(self.window)
self.input.render(self.window)
self.window.refresh()
def terminate(self):
curses.nocbreak()
self.window.keypad(False)
curses.echo()
curses.endwin()
class Game:
def __init__(self):
pass
def init(self, winWidth, winHeight):
self.fieldWidth = winWidth // constants.FIELD_SIZE
self.fieldHeight = winHeight // constants.FIELD_SIZE
self.snake = Snake(self.fieldWidth // 2, self.fieldHeight // 2)
self.apple = Apple(self.snake.getOccupiedCoords(), self.fieldWidth,
self.fieldHeight)
self.currentTick = 0
self.score = 0
def update(self):
res = True
self.currentTick += 1
if self.currentTick > 5:
res = res and self.snake.update(self.fieldWidth, self.fieldHeight)
snakeBlocks = self.snake.getOccupiedCoords()
if self.apple.pos in snakeBlocks:
self.snake.grow()
self.apple = Apple(snakeBlocks, self.fieldWidth,
self.fieldHeight)
self.currentTick = 0
if res == False:
#Death
print("[GAMEOVER] Snakelength : " + str(len(self.snake.body) + 1))
return res
def render(self, win):
#First render the field
#To make the lines shorter
fz = constants.FIELD_SIZE
for y in range(self.fieldHeight):
for x in range(self.fieldWidth):
pygame.draw.rect(win, constants.FIELD_COLOR,
(x * fz, y * fz, fz, fz),
constants.FIELD_BORDER_SIZE)
self.snake.render(win)
self.apple.render(win)
