async def show_game_progress(canvas, x, y):
game = Game()
while True:
text = f"{game.year} {game.text}"
draw_frame(canvas, x, y, text)
await Sleep(1)
draw_frame(canvas, x, y, text, True)
async def animate_garbage(canvas, garbage, velocity=0.6):
"""Animate garbage, flying from top to bottom.
Сolumn position will stay same, as specified on start."""
window_height, window_width = canvas.getmaxyx()
x = min(max(garbage.x, 0), window_width - 1)
y = garbage.y
obstacle_manager.add_object(garbage)
frame = garbage.frame
while y < window_height:
# terminate garbage object
if garbage.term:
GameLoop().add_coroutine(
animate_explosion(canvas, garbage.get_center_pos()))
obstacle_manager.remove_object(garbage.uid)
return
# draw moving garbage
draw_frame(canvas, x, y, frame)
await Sleep(1)
draw_frame(canvas, x, y, frame, negative=True)
y += velocity
garbage.y = y
# garbage flew away
obstacle_manager.remove_object(garbage.uid)
async def run_spaceship(canvas, x, y):
"""
Spaceship coroutine that handles player's input and draws frames.
Works every step of event loop.
"""
# getmaxyx() return height and width of the window.
height, width = canvas.getmaxyx()
# we want to stop the spaceship right before the border line
max_x = width - FRAME_WIDTH - 1
max_y = height - FRAME_HEIGHT - 1
prev_frame = None
game_loop = GameLoop()
game = Game()
vel_x, vel_y = 0, 0
while True:
# get current frame
frame = spaceship.frame
# read controls
dy, dx, space = read_controls(canvas)
if space and game.is_gun_available():
# TODO add fire cooldown
game_loop.add_coroutine(
animate_gunshot(canvas=canvas,
pos=(x + SPACESHIP_X_HALF, y - 1)))
vel_x, vel_y = update_velocity(
x_direction=dx,
y_direction=dy,
velocity_vec=(vel_x, vel_y),
velocity_limit_vec=(SPACESHIP_MAX_X_SPEED, SPACESHIP_MAX_Y_SPEED))
# count next coordinates
# check borders intersection
# choose closest point to the border
x1 = max(1, min(x + vel_x, max_x))
y1 = max(1, min(y + vel_y, max_y))
# clean prev frame at old pos and draw current frame at new pos
clean_draw(canvas, (x, y), (x1, y1), prev_frame, frame)
x, y = x1, y1
# check collisions with obstacles
for obstacle in obstacle_manager.get_front_objects(x, x + FRAME_WIDTH):
# GAME OVER
if obstacle.has_collision(obj_pos=(x, y),
obj_size=(FRAME_WIDTH, FRAME_HEIGHT)):
game.over()
# clear last spaceship frame
draw_frame(canvas, x, y, frame, True)
spaceship_center_pos = (x + SPACESHIP_X_HALF,
y + SPACESHIP_Y_HALF)
game_loop.add_coroutine(
animate_explosion(canvas=canvas,
center_pos=spaceship_center_pos))
game_loop.add_coroutine(show_gameover(canvas))
return
# sleep for 1 Game Tic or 1 Event Loop iteration
await Sleep(1)
prev_frame = frame
async def animate_explosion(canvas, center_pos: Coordinate):
width, height = get_frame_size(EXPLOSION_FRAMES[0][1])
corner_x = center_pos[0] - width // 2
corner_y = center_pos[1] - height // 2
curses.beep()
for tics, frame in EXPLOSION_FRAMES:
draw_frame(canvas, corner_x, corner_y, frame)
await Sleep(tics)
draw_frame(canvas, corner_x, corner_y, frame, negative=True)
await Sleep(tics)
async def show_gameover(canvas):
'''Show game over in the center of the screen'''
centet_y, center_x = map(lambda v: v // 2, canvas.getmaxyx())
w, h = get_frame_size(game_over_frame)
start_x = center_x - w // 2
start_y = centet_y - h // 2
# small pause
await Sleep(10)
while True:
draw_frame(canvas, start_x, start_y, game_over_frame)
await Sleep(1)
async def show_obstacles(canvas):
"""Display bounding boxes of every obstacle in a list"""
while True:
boxes = []
for obstacle in obstacle_manager:
boxes.append(obstacle.get_bounding_box())
for x, y, frame in boxes:
draw_frame(canvas, x, y, frame)
await Sleep(1)
for x, y, frame in boxes:
draw_frame(canvas, x, y, frame, negative=True)