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viewer.py
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viewer.py
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"""Viewer application."""
import argparse
import asyncio
import json
import logging
import os
import requests
import websockets
import pygame
from common import Dimensions
logging.basicConfig(level=logging.DEBUG)
logger_websockets = logging.getLogger("websockets")
logger_websockets.setLevel(logging.WARN)
logger = logging.getLogger("Viewer")
logger.setLevel(logging.DEBUG)
BLOCK_SIDE = 30
BLOCK_SIZE = BLOCK_SIDE, BLOCK_SIDE
COLORS = {
"white": (255, 255, 255),
"red": (255, 0, 0),
"pink": (255, 105, 180),
"blue": (135, 206, 235),
"orange": (255, 165, 0),
"yellow": (255, 255, 0),
"grey": (120, 120, 120),
"green": (0, 240, 0),
}
async def messages_handler(websocket_path, queue):
"""Handles server side messages, putting them into a queue."""
async with websockets.connect(websocket_path) as websocket:
await websocket.send(json.dumps({"cmd": "join"}))
while True:
update = await websocket.recv()
queue.put_nowait(update)
def scale(pos):
"""Scale positions according to gfx."""
x, y = pos
return int(x * BLOCK_SIDE / SCALE), int(y * BLOCK_SIDE / SCALE)
def draw_info(surface, text, pos, color=(0, 0, 0), background=None):
"""Creates text based surfaces for information display."""
myfont = pygame.font.Font(None, int(24 / SCALE))
textsurface = myfont.render(text, True, color, background)
x, y = pos
if x > surface.get_width():
pos = surface.get_width() - (textsurface.get_width() + 10), y
if y > surface.get_height():
pos = x, surface.get_height() - textsurface.get_height()
if background:
surface.blit(background, pos)
else:
erase = pygame.Surface(textsurface.get_size())
erase.fill(COLORS["grey"])
surface.blit(textsurface, pos)
return textsurface.get_width(), textsurface.get_height()
async def main_loop(queue):
"""Processes events from server and display's."""
win = pygame.display.set_mode((600 // SCALE, 1000 // SCALE))
pygame.display.set_caption("Tetris")
logging.info("Waiting for map information from server")
state = await queue.get() # first state message includes map information
logging.debug("Initial game status: %s", state)
newgame_json = json.loads(state)
player_name = ""
win.fill((0, 0, 0))
def draw_blocks(coordinates, color, x_offset=0, y_offset=0):
for x, y in coordinates:
pygame.draw.rect(
win,
color,
(
(x + x_offset) * BLOCK_SIDE / SCALE,
(y + y_offset) * BLOCK_SIDE / SCALE,
BLOCK_SIDE / SCALE,
BLOCK_SIDE / SCALE,
),
0,
)
dimensions = Dimensions(*newgame_json["dimensions"])
draw_blocks(newgame_json["grid"], COLORS["blue"])
game_speed = newgame_json["game_speed"]
while True:
pygame.display.update()
pygame.event.pump()
if pygame.key.get_pressed()[pygame.K_ESCAPE]:
asyncio.get_event_loop().stop()
try:
state = json.loads(queue.get_nowait())
if "score" in state:
score = state["score"]
if "player" in state:
player_name = state["player"]
if "game_speed" in state:
game_speed = state["game_speed"]
win.fill((0, 0, 0))
if "highscores" in state:
logging.debug("Final game status: %s", state)
if GLOBAL_HIGHSCORES:
print("FUCK")
highscores = [
[highscore["player"], highscore["score"]]
for highscore in requests.get(GLOBAL_HIGHSCORES).json()
]
state["highscores"].extend(highscores)
state["highscores"].sort(key=lambda h: h[1], reverse=True)
state["highscores"] = state["highscores"][:9]
state["highscores"].append([player_name, score])
state["highscores"].sort(key=lambda h: h[1], reverse=True)
draw_info(win, "HIGHSCORES", scale((5, 5)), COLORS["blue"])
for idx, [name, sc] in enumerate(state["highscores"]):
draw_info(
win,
f"{sc:>05} {name:<24}",
scale((5, 6 + idx)),
COLORS["orange"]
if [player_name, score] == [name, sc]
else COLORS["white"],
)
continue
draw_blocks(newgame_json["grid"], COLORS["blue"])
draw_blocks(state["game"], COLORS["red"])
if state["piece"]:
draw_blocks(state["piece"], COLORS["green"])
yy = 1
for n, next_piece in enumerate(state["next_pieces"]):
draw_info(
win, f"{n+1}º next:", scale((dimensions.x + 1, yy)), COLORS["white"]
)
draw_blocks(
next_piece,
COLORS["pink"],
x_offset=dimensions.x + 2,
y_offset=yy + 1,
)
yy += 6
draw_info(
win,
f"{player_name}",
scale((dimensions.x + 1, dimensions.y-1)),
COLORS["white"],
)
draw_info(
win,
f"SCORE: {score}",
scale((dimensions.x + 1, dimensions.y)),
COLORS["white"],
)
except asyncio.queues.QueueEmpty:
await asyncio.sleep(1.0 / game_speed)
continue
if __name__ == "__main__":
SERVER = os.environ.get("SERVER", "localhost")
PORT = os.environ.get("PORT", "8000")
parser = argparse.ArgumentParser()
parser.add_argument("--server", help="IP address of the server", default=SERVER)
parser.add_argument(
"--scale", help="reduce size of window by x times", type=int, default=1
)
parser.add_argument("--port", help="TCP port", type=int, default=PORT)
parser.add_argument(
"--global-highscores",
help="Retrieve global highscores",
default=False,
action="store_true",
)
parser.add_argument(
"--grading-server",
help="url of grading server",
default="http://atnog-tetriscores.av.it.pt/highscores",
)
arguments = parser.parse_args()
SCALE = arguments.scale
GLOBAL_HIGHSCORES = (
arguments.grading_server if arguments.global_highscores else None
)
LOOP = asyncio.get_event_loop()
pygame.font.init()
q = asyncio.Queue()
PROGRAM_ICON = pygame.image.load("data/tetris_block.png")
pygame.display.set_icon(PROGRAM_ICON)
ws_path = f"ws://{arguments.server}:{arguments.port}/viewer"
try:
LOOP.run_until_complete(
asyncio.gather(messages_handler(ws_path, q), main_loop(q))
)
except RuntimeError as err:
logger.error(err)
finally:
LOOP.stop()