Add argument parser

This commit is contained in:
Nguyễn Gia Phong 2018-02-13 20:51:41 +07:00
parent 465be4493d
commit 6a4f7e47ae
4 changed files with 138 additions and 76 deletions

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@ -1,5 +1,3 @@
"""Brutal Maze is a hash and slash game with fast-paced action and a
minimalist art style.
"""
"""Brutal Maze is a minimalist hack and slash game with fast-paced action"""
from .main import main

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@ -19,21 +19,10 @@
__doc__ = 'brutalmaze module for shared constants'
from os.path import join
from appdirs import user_config_dir, site_config_dir
from pkg_resources import resource_filename
from pygame import image
from pygame.mixer import Sound
USER_CONFIG = join(user_config_dir('brutalmaze'), 'settings.ini')
SITE_CONFIG = join(site_config_dir('brutalmaze'), 'settings.ini')
DEFAULT_BINDINGS = {'New game': 'F2', 'Pause': 'p',
'Move left': 'Left', 'Move right': 'Right',
'Move up': 'Up', 'Move down': 'Down',
'Long-range attack': 'Mouse1',
'Close-range attack': 'Mouse3'}
ICON = image.load(resource_filename('brutalmaze', 'icon.png'))
MUSIC = resource_filename('brutalmaze', 'soundfx/music.ogg')
SFX_SPAWN = resource_filename('brutalmaze', 'soundfx/spawn.ogg')

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@ -17,76 +17,149 @@
#
# Copyright (C) 2017 Nguyễn Gia Phong
__version__ = '0.5.1'
import re
from argparse import ArgumentParser, RawTextHelpFormatter
from collections import deque
try: # Python 3
from configparser import ConfigParser, NoOptionError, NoSectionError
except ImportError: # Python 2
from ConfigParser import ConfigParser, NoOptionError, NoSectionError
from os.path import join, pathsep
import pygame
from pygame import DOUBLEBUF, KEYDOWN, OPENGL, QUIT, RESIZABLE, VIDEORESIZE
from appdirs import AppDirs
from .constants import USER_CONFIG, SITE_CONFIG, DEFAULT_BINDINGS, ICON, MUSIC
from .constants import *
from .maze import Maze
def getconf(config, section, option, valtype=str, fallback=None):
"""Return an option value for a given section from a ConfigParser
object.
If the key is not found, return the fallback value.
class ConfigReader:
"""Object reading and processing INI configuration file for
Brutal Maze.
"""
if fallback is None: fallback = valtype()
try:
if valtype == str:
return config.get(section, option)
elif valtype == bool:
return config.getboolean(section, option)
elif valtype == float:
return config.getfloat(section, option)
elif valtype == int:
return config.getint(section, option)
except NoSectionError, NoOptionError:
return fallback
DEFAULT_BINDINGS = (('New game', 'new', 'F2'),
('Pause', 'pause', 'p'),
('Move left', 'left', 'Left'),
('Move right', 'right', 'Right'),
('Move up', 'up', 'Up'),
('Move down', 'down', 'Down'),
('Long-range attack', 'shot', 'Mouse1'),
('Close-range attack', 'slash', 'Mouse3'))
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(filenames)
def _getconf(self, section, option, val_t):
if val_t == str:
return self.config.get(section, option)
elif val_t == bool:
return self.config.getboolean(section, option)
elif val_t == float:
return self.config.getfloat(section, option)
elif val_t == int:
return self.config.getint(section, option)
def getconf(self, section, option, val_t=str, fallback=None):
"""Return the value of the option in the given section.
If the value is not found, return fallback.
"""
try:
return self._getconf(section, option, val_t)
except NoSectionError, NoOptionError:
return val_t() if fallback is None else fallback
def setconf(self, name, section, option, val_t=str, fallback=None):
"""Set the named attribute to the value of the option in
the given section.
If the value is not found and attribute does not exist,
use fallback.
"""
try:
setattr(self, name, self._getconf(section, option, val_t))
except NoSectionError, NoOptionError:
try:
getattr(self, name)
except AttributeError:
setattr(self, name, val_t() if fallback is None else fallback)
def parse_graphics(self):
"""Parse graphics configurations."""
self.setconf('width', 'Graphics', 'Screen width', int, 640)
self.setconf('height', 'Graphics', 'Screen height', int, 480)
self.setconf('opengl', 'Graphics', 'OpenGL', bool)
self.setconf('max_fps', 'Graphics', 'Maximum FPS', float, 60.0)
def parse_control(self):
"""Parse control configurations."""
self.key, self.mouse = {}, {}
for cmd, alias, bind in self.DEFAULT_BINDINGS:
i = self.getconf('Control', cmd, fallback=bind).lower()
if re.match('mouse[1-3]$', i):
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)
continue
try:
self.key[alias] = getattr(pygame, 'K_{}'.format(i.upper()))
except AttributeError:
raise ValueError(self.INVALID_CONTROL_ERR.format(cmd, i))
def read_args(self, arguments):
"""Read and parse a ArgumentParser.Namespace."""
if arguments.size is not None: self.width, self.height = arguments.size
if arguments.opengl is not None: self.opengl = arguments.opengl
if arguments.max_fps is not None: self.max_fps = arguments.max_fps
def main():
"""Start game and main loop."""
# Read configuration file
config = ConfigParser()
conf = config.read(USER_CONFIG)
if not conf: conf = config.read(SITE_CONFIG)
conf = conf[0] if conf else ''
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_graphics()
# Read graphics configurations
width = getconf(config, 'Graphics', 'Screen width', int, 640)
height = getconf(config, 'Graphics', 'Screen height', int, 480)
scrtype = RESIZABLE
if getconf(config, 'Graphics', 'OpenGL', bool):
scrtype |= OPENGL | DOUBLEBUF
fps = max_fps = getconf(config, 'Graphics', 'Maximum FPS', float, 60.0)
# Parse command line arguments
parser = ArgumentParser(formatter_class=RawTextHelpFormatter)
parser.add_argument('-v', '--version', action='version',
version='Brutal Maze {}'.format(__version__))
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.width,
config.height))
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=float, metavar='FPS',
help='the desired maximum FPS (fallback: {})'.format(config.max_fps))
args = parser.parse_args()
# Read control configurations
key, mouse = {}, {}
for cmd, bind in DEFAULT_BINDINGS.items():
i = getconf(config, 'Control', cmd, fallback=bind).lower()
if re.match('mouse[1-3]$', i):
if cmd not in ('Long-range attack', 'Close-range attack'):
print('File "{}", section Control'.format(conf))
print('\tOne does not simply {} using a mouse'.format(cmd))
quit()
mouse[cmd] = int(i[-1]) - 1
continue
if len(i) == 1:
key[cmd] = ord(i)
continue
try:
key[cmd] = getattr(pygame, 'K_{}'.format(i.upper()))
except AttributeError:
print('File "{}", section Control, option {}'.format(conf, cmd))
print('\t"{}" is not recognized as a valid input'.format(i))
quit()
# Manipulate config
if args.config: config.config.read(args.config)
config.read_args(args)
config.parse_graphics()
config.parse_control()
# Initialization
pygame.mixer.pre_init(frequency=44100)
@ -95,10 +168,12 @@ def main():
pygame.mixer.music.play(-1)
pygame.display.set_icon(ICON)
pygame.fastevent.init()
maze = Maze((width, height), scrtype, fps)
clock, flash_time, going = pygame.time.Clock(), deque(), True
clock, flash_time, fps = pygame.time.Clock(), deque(), config.max_fps
scrtype = (config.opengl and DOUBLEBUF|OPENGL) | RESIZABLE
maze = Maze((config.width, config.height), scrtype, fps)
# Main loop
going = True
while going:
events = pygame.fastevent.get()
for event in events:
@ -107,24 +182,24 @@ def main():
elif event.type == VIDEORESIZE:
maze.resize((event.w, event.h), scrtype)
elif event.type == KEYDOWN:
if event.key == key['New game']:
if event.key == config.key['new']:
maze.__init__((maze.w, maze.h), scrtype, fps)
elif event.key == key['Pause'] and not maze.hero.dead:
elif event.key == config.key['pause'] and not maze.hero.dead:
maze.paused ^= True
if not maze.hero.dead:
keys = pygame.key.get_pressed()
maze.move(keys[key['Move left']] - keys[key['Move right']],
keys[key['Move up']] - keys[key['Move down']], fps)
maze.move(keys[config.key['left']] - keys[config.key['right']],
keys[config.key['up']] - keys[config.key['down']], fps)
buttons = pygame.mouse.get_pressed()
try:
maze.hero.firing = keys[key['Long-range attack']]
maze.hero.firing = keys[config.key['shot']]
except KeyError:
maze.hero.firing = buttons[mouse['Long-range attack']]
maze.hero.firing = buttons[config.mouse['shot']]
try:
maze.hero.slashing = keys[key['Close-range attack']]
maze.hero.slashing = keys[config.key['slash']]
except KeyError:
maze.hero.slashing = buttons[mouse['Close-range attack']]
maze.hero.slashing = buttons[config.mouse['slash']]
# Compare current FPS with the average of the last 5 seconds
if len(flash_time) > 5:
@ -132,7 +207,7 @@ def main():
flash_time.popleft()
if new_fps < fps:
fps -= 1
elif fps < max_fps and not maze.paused:
elif fps < config.max_fps and not maze.paused:
fps += 5
maze.update(fps)
flash_time.append(pygame.time.get_ticks())

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@ -7,8 +7,8 @@ with open('README.rst') as f:
setup(
name='brutalmaze',
version='0.5.0',
description='A hash and slash game with fast-paced action and a minimalist art style',
version='0.5.1',
description='A minimalist hack and slash game with fast-paced action',
long_description=long_description,
url='https://github.com/McSinyx/brutalmaze',
author='Nguyễn Gia Phong',