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Diffstat (limited to 'brutalmaze/game.py')
| -rw-r--r-- | brutalmaze/game.py | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/brutalmaze/game.py b/brutalmaze/game.py new file mode 100644 index 0000000..d6e46e8 --- /dev/null +++ b/brutalmaze/game.py @@ -0,0 +1,366 @@ +# -*- coding: utf-8 -*- +# main.py - main module, starts game and main loop +# Copyright (C) 2017, 2018 Nguyễn Gia Phong +# +# This file is part of Brutal Maze. +# +# Brutal Maze is free software: you can redistribute it and/or modify +# it under the terms of the GNU Affero General Public License as +# published by the Free Software Foundation, either version 3 of the +# License, or (at your option) any later version. +# +# Brutal Maze is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU Affero General Public License for more details. +# +# You should have received a copy of the GNU Affero General Public License +# along with Brutal Maze. If not, see <https://www.gnu.org/licenses/>. + +__version__ = '0.5.5' + +import re +from argparse import ArgumentParser, FileType, RawTextHelpFormatter +from collections import deque +try: # Python 3 + from configparser import ConfigParser +except ImportError: # Python 2 + from ConfigParser import ConfigParser +from math import atan2, degrees, radians +from os.path import join, pathsep +from socket import socket, SOL_SOCKET, SO_REUSEADDR +from sys import stdout +from threading import Thread + + +import pygame +from pygame import DOUBLEBUF, KEYDOWN, OPENGL, QUIT, RESIZABLE, VIDEORESIZE +from pygame.time import Clock, get_ticks +from appdirs import AppDirs + +from .constants import SETTINGS, ICON, MUSIC, HERO_SPEED, COLORS, WALL +from .maze import Maze +from .misc import round2, sign + + +class ConfigReader: + """Object reading and processing INI configuration file for + Brutal Maze. + """ + CONTROL_ALIASES = (('New game', 'new'), ('Toggle pause', 'pause'), + ('Toggle mute', 'mute'), + ('Move left', 'left'), ('Move right', 'right'), + ('Move up', 'up'), ('Move down', 'down'), + ('Long-range attack', 'shot'), + ('Close-range attack', 'slash')) + WEIRD_MOUSE_ERR = '{}: Mouse is not a suitable control' + INVALID_CONTROL_ERR = '{}: {} is not recognized as a valid control key' + + def __init__(self, filenames): + self.config = ConfigParser() + self.config.read(SETTINGS) # default configuration + self.config.read(filenames) + + # Fallback to None when attribute is missing + def __getattr__(self, name): return None + + def parse(self): + """Parse configurations.""" + self.server = self.config.getboolean('Server', 'Enable') + if self.server: + self.host = self.config.get('Server', 'Host') + self.port = self.config.getint('Server', 'Port') + self.headless = self.config.getboolean('Server', 'Headless') + else: + self.key, self.mouse = {}, {} + for cmd, alias in self.CONTROL_ALIASES: + i = self.config.get('Control', cmd) + if re.match('mouse[1-3]$', i.lower()): + if alias not in ('shot', 'slash'): + raise ValueError(self.WEIRD_MOUSE_ERR.format(cmd)) + self.mouse[alias] = int(i[-1]) - 1 + continue + if len(i) == 1: + self.key[alias] = ord(i.lower()) + continue + try: + self.key[alias] = getattr(pygame, 'K_{}'.format(i.upper())) + except AttributeError: + raise ValueError(self.INVALID_CONTROL_ERR.format(cmd, i)) + + self.size = (self.config.getint('Graphics', 'Screen width'), + self.config.getint('Graphics', 'Screen height')) + self.opengl = self.config.getboolean('Graphics', 'OpenGL') + self.max_fps = self.config.getint('Graphics', 'Maximum FPS') + self.muted = self.config.getboolean('Sound', 'Muted') + self.musicvol = self.config.getfloat('Sound', 'Music volume') + + def read_args(self, arguments): + """Read and parse a ArgumentParser.Namespace.""" + for option in 'size', 'opengl', 'max_fps', 'muted', 'musicvol': + value = getattr(arguments, option) + if value is not None: setattr(self, option, value) + + +class Game: + """Object handling main loop and IO.""" + def __init__(self, config): + pygame.mixer.pre_init(frequency=44100) + pygame.init() + if config.muted or config.headless: + pygame.mixer.quit() + else: + pygame.mixer.music.load(MUSIC) + pygame.mixer.music.set_volume(config.musicvol) + pygame.mixer.music.play(-1) + pygame.display.set_icon(ICON) + + pygame.fastevent.init() + if config.server: + self.server = socket() + self.server.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1) + self.server.bind((config.host, config.port)) + self.server.listen(1) + print('Socket server is listening on {}:{}'.format(config.host, + config.port)) + self.sockinp = 0, 0, 225, 0, 0 # freeze and point to NW + else: + self.server = self.sockinp = None + + self.headless = config.headless + # self.fps is a float to make sure floordiv won't be used in Python 2 + self.max_fps, self.fps = config.max_fps, float(config.max_fps) + self.musicvol = config.musicvol + self.key, self.mouse = config.key, config.mouse + scrtype = (config.opengl and DOUBLEBUF|OPENGL) | RESIZABLE + self.maze = Maze(config.max_fps, config.size, scrtype, config.headless) + self.hero = self.maze.hero + self.clock, self.paused = Clock(), False + + def __enter__(self): return self + + def expos(self, x, y): + """Return position of the given coordinates in rounded percent.""" + cx = (x+self.maze.x-self.maze.centerx) / self.maze.distance * 100 + cy = (y+self.maze.y-self.maze.centery) / self.maze.distance * 100 + return round2(cx), round2(cy) + + def export(self): + """Export maze data to a bytes object.""" + maze, hero, tick = self.maze, self.hero, get_ticks() + walls = [[1 if maze.map[x][y] == WALL else 0 for x in maze.rangex] + for y in maze.rangey] if maze.next_move <= tick else [] + lines, ne, nb = deque(), 0, 0 + + for enemy in maze.enemies: + if not enemy.awake and walls: + walls[enemy.y-maze.rangey[0]][enemy.x-maze.rangex[0]] = WALL + continue + elif enemy.color == 'Chameleon' and maze.next_move <= tick: + continue + x, y = self.expos(*enemy.get_pos()) + lines.append('{} {} {} {:.0f}'.format(COLORS[enemy.get_color()], + x, y, degrees(enemy.angle))) + ne += 1 + + for bullet in maze.bullets: + x, y = self.expos(bullet.x, bullet.y) + color, angle = COLORS[bullet.get_color()], degrees(bullet.angle) + if color != '0': + lines.append('{} {} {} {:.0f}'.format(color, x, y, angle)) + nb += 1 + + if walls: lines.appendleft('\n'.join(''.join(str(cell) for cell in row) + for row in walls)) + x, y = self.expos(maze.x, maze.y) + lines.appendleft('{} {} {} {} {} {} {} {:d} {:d}'.format( + len(walls), ne, nb, maze.get_score(), COLORS[hero.get_color()], + x, y, hero.next_strike <= tick, hero.next_heal <= tick)) + return '\n'.join(lines).encode() + + def update(self): + """Draw and handle meta events on Pygame window. + + Return False if QUIT event is captured, True otherwise. + """ + events = pygame.fastevent.get() + for event in events: + if event.type == QUIT: + return False + elif event.type == VIDEORESIZE: + self.maze.resize((event.w, event.h)) + elif event.type == KEYDOWN and not self.server: + if event.key == self.key['new']: + self.maze.reinit() + elif event.key == self.key['pause'] and not self.hero.dead: + self.paused ^= True + elif event.key == self.key['mute']: + if pygame.mixer.get_init() is None: + pygame.mixer.init(frequency=44100) + pygame.mixer.music.load(MUSIC) + pygame.mixer.music.set_volume(self.musicvol) + pygame.mixer.music.play(-1) + else: + pygame.mixer.quit() + + # Compare current FPS with the average of the last 10 frames + new_fps = self.clock.get_fps() + if new_fps < self.fps: + self.fps -= 1 + elif self.fps < self.max_fps and not self.paused: + self.fps += 5 + if not self.paused: self.maze.update(self.fps) + if not self.headless: self.maze.draw() + self.clock.tick(self.fps) + return True + + def move(self, x, y): + """Command the hero to move faster in the given direction.""" + x, y = -x, -y # or move the maze in the reverse direction + stunned = pygame.time.get_ticks() < self.maze.next_move + velocity = self.maze.distance * HERO_SPEED / self.fps + accel = velocity * HERO_SPEED / self.fps + + if stunned or not x: + self.maze.vx -= sign(self.maze.vx) * accel + if abs(self.maze.vx) < accel * 2: self.maze.vx = 0.0 + elif x * self.maze.vx < 0: + self.maze.vx += x * 2 * accel + else: + self.maze.vx += x * accel + if abs(self.maze.vx) > velocity: self.maze.vx = x * velocity + + if stunned or not y: + self.maze.vy -= sign(self.maze.vy) * accel + if abs(self.maze.vy) < accel * 2: self.maze.vy = 0.0 + elif y * self.maze.vy < 0: + self.maze.vy += y * 2 * accel + else: + self.maze.vy += y * accel + if abs(self.maze.vy) > velocity: self.maze.vy = y * velocity + + def control(self, x, y, angle, firing, slashing): + """Control how the hero move and attack.""" + self.move(x, y) + self.hero.update_angle(angle) + self.hero.firing = firing + self.hero.slashing = slashing + + def remote_control(self): + """Handle remote control though socket server. + + This function is supposed to be run in a Thread. + """ + clock = Clock() + while True: + connection, address = self.server.accept() + print('Connected to {}:{}'.format(*address)) + self.maze.reinit() + while not self.hero.dead: + data = self.export() + connection.send('{:08}'.format(len(data)).encode()) + connection.send(data) + try: + buf = connection.recv(8) + except: # client is likely to be closed + break + if not buf: break + move, angle, attack = (int(i) for i in buf.decode().split()) + y, x = (i - 1 for i in divmod(move, 3)) + self.sockinp = x, y, radians(angle), attack & 1, attack >> 1 + clock.tick(self.fps) + self.maze.lose() + self.sockinp = 0, 0, 225, 0, 0 + print('{1}:{2} scored {0} points'.format( + self.maze.get_score(), *address)) + connection.close() + + def user_control(self): + """Handle direct control from user's mouse and keyboard.""" + if not self.hero.dead: + keys = pygame.key.get_pressed() + right = keys[self.key['right']] - keys[self.key['left']] + down = keys[self.key['down']] - keys[self.key['up']] + + # Follow the mouse cursor + x, y = pygame.mouse.get_pos() + angle = atan2(y - self.hero.y, x - self.hero.x) + + buttons = pygame.mouse.get_pressed() + try: + firing = keys[self.key['shot']] + except KeyError: + firing = buttons[self.mouse['shot']] + try: + slashing = keys[self.key['slash']] + except KeyError: + slashing = buttons[self.mouse['slash']] + + self.control(right, down, angle, firing, slashing) + + def __exit__(self, exc_type, exc_value, traceback): + if self.server is not None: self.server.close() + pygame.quit() + + +def main(): + """Start game and main loop.""" + # Read configuration file + dirs = AppDirs(appname='brutalmaze', appauthor=False, multipath=True) + parents = dirs.site_config_dir.split(pathsep) + parents.append(dirs.user_config_dir) + filenames = [join(parent, 'settings.ini') for parent in parents] + config = ConfigReader(filenames) + config.parse() + + # Parse command-line arguments + parser = ArgumentParser(formatter_class=RawTextHelpFormatter) + parser.add_argument('-v', '--version', action='version', + version='Brutal Maze {}'.format(__version__)) + parser.add_argument( + '--write-config', nargs='?', const=stdout, type=FileType('w'), + metavar='PATH', dest='defaultcfg', + help='write default config and exit, if PATH not specified use stdout') + parser.add_argument( + '-c', '--config', metavar='PATH', + help='location of the configuration file (fallback: {})'.format( + pathsep.join(filenames))) + parser.add_argument( + '-s', '--size', type=int, nargs=2, metavar=('X', 'Y'), + help='the desired screen size (fallback: {}x{})'.format(*config.size)) + parser.add_argument( + '--opengl', action='store_true', default=None, + help='enable OpenGL (fallback: {})'.format(config.opengl)) + parser.add_argument('--no-opengl', action='store_false', dest='opengl', + help='disable OpenGL') + parser.add_argument( + '-f', '--max-fps', type=int, metavar='FPS', + help='the desired maximum FPS (fallback: {})'.format(config.max_fps)) + parser.add_argument( + '--mute', '-m', action='store_true', default=None, + help='mute all sounds (fallback: {})'.format(config.muted)) + parser.add_argument('--unmute', action='store_false', dest='muted', + help='unmute sound') + parser.add_argument( + '--music-volume', type=float, metavar='VOL', dest='musicvol', + help='between 0.0 and 1.0 (fallback: {})'.format(config.musicvol)) + args = parser.parse_args() + if args.defaultcfg is not None: + with open(SETTINGS) as settings: args.defaultcfg.write(settings.read()) + args.defaultcfg.close() + exit() + + # Manipulate config + if args.config: config.config.read(args.config) + config.read_args(args) + config.parse() + + # Main loop + with Game(config) as game: + if config.server: + socket_thread = Thread(target=game.remote_control) + socket_thread.daemon = True # make it disposable + socket_thread.start() + while game.update(): game.control(*game.sockinp) + else: + while game.update(): game.user_control() |