Video Games

from pygame import font

from GameChild import *

class Font(font.Font, GameChild):

    def __init__(self, parent, size):
        GameChild.__init__(self, parent)
        font.Font.__init__(self, self.get_resource("font", "path"), size)

import os
import time

from pygame import image

from GameChild import *
from Input import *

class ScreenGrabber(GameChild):

    def __init__(self, game):
        GameChild.__init__(self, game)
        self.subscribe_to(Input.command_event, self.save_display)

    def save_display(self, event):
        if event.command == "capture-screen":
            directory = self.get_configuration()["screen-capture-save-dir"]
            if not os.path.exists(directory):
                os.mkdir(directory)
            name = time.ctime().replace(" ", "-") + ".png"
            path = os.path.join(directory, name)
            capture = image.save(self.get_screen(), path)

from esp_hadouken.sprite.Sprite import *
from esp_hadouken.pgfw.GameChild import *

class Diortem(Sprite):

    def __init__(self, parent):
        GameChild.__init__(self, parent)
        self.init_sprite()

    def init_sprite(self):
        configuration = self.get_configuration()
        image_path = self.get_resource("diortem", "image-path")
        Sprite.__init__(self, self.parent, image_path, self.parent)

from os import walk, remove
from os.path import sep, join, exists, realpath, relpath
from re import findall

from Configuration import *

class Setup:

    config = Configuration(local=True)

    @classmethod
    def remove_old_mainfest(self):
        path = "MANIFEST"
        if exists(path):
            remove(path)

    @classmethod
    def build_package_list(self):
        packages = []
        for root, dirs, files in walk("esp_hadouken"):
            packages.append(root.replace(sep, "."))
        return packages

    @classmethod
    def build_data_map(self):
        install_root = self.config["resources-install-path"]
        include = [(install_root, ["config", "hi-scores"])]
        exclude = map(realpath,
                      [".git", "esp_hadouken", "resources/local", "dist",
                       "build"])
        for root, dirs, files in walk("."):
            removal = []
            for directory in dirs:
                if realpath(join(root, directory)) in exclude:
                    removal.append(directory)
            for directory in removal:
                dirs.remove(directory)
            if root != ".":
                destination = join(install_root, relpath(root))
                listing = []
                for file_name in files:
                    listing.append(join(root, file_name))
                include.append((destination, listing))
        return include

    @classmethod
    def translate_title(self):
        return self.config["game-title"].replace(" ", "-")

    @classmethod
    def build_description(self):
        return "\n%s\n%s\n%s" % (file("description").read(),
                                 "Changelog\n=========",
                                 self.translate_changelog())

    @classmethod
    def translate_changelog(self):
        translation = ""
        for line in file("changelog"):
            line = line.strip()
            if line.startswith("esp-hadouken"):
                version = findall("\((.*)\)", line)[0]
                translation += "\n%s\n%s\n" % (version, "-" * len(version))
            elif line and not line.startswith("--"):
                if line.startswith("*"):
                    translation += line + "\n"
                else:
                    translation += "  " + line + "\n"
        return translation

import re
import os
from sys import argv
from os.path import exists, join

import pygame

class Configuration(dict):

    assignment_operator = "="
    comments_operator = "#"
    field_separator = ","
    keys_prefix = "keys_"
    
    int_parameters = [
        "display-frame-duration", "display-wait-duration",
        "introduction-diortem-y", "overworld-toy-y", "overworld-wall-y",
        "overworld-dot-y", "joy-advance", "overworld-bandits-margin",
        "ending-score-size", "background-music-channel-id",
        "octo-level-min-gap", "octo-level-barrier-height",
        "octo-level-scroll-speed", "level-checker-width",
        "tooth-level-scroll-speed", "circulor-level-scroll-speed",
        "diortem-level-scroll-speed", "horse-level-scroll-speed",
        "horse-level-step-limit", "level-exit-alpha", "joy-pause",
        "introduction-prompt-size", "introduction-controls-height",
        "introduction-controls-size", "introduction-controls-offset",
        "introduction-controls-alpha", "timer-max-time",
        "scoreboard-palette-length", "scoreboard-prompt-margin",
        "scoreboard-prompt-text-size", "scoreboard-palette-brightness",
        "ending-input-message-y", "ending-input-message-size",
        "scoreboard-padding", "scoreboard-row-height",
        "scoreboard-interval-length", "scoreboard-width", "scoreboard-alpha",
        "scoreboard-rank-size", "scoreboard-total-size",
        "scoreboard-initials-size", "scoreboard-split-size",
        "scoreboard-initials-margin", "scoreboard-heading-height",
        "scoreboard-heading-checker-count", "scoreboard-heading-margin",
        "scoreboard-heading-title-size", "scoreboard-heading-title-indent",
        "scoreboard-heading-title-offset", "distance-text-size"]

    float_parameters = [
        "dot-thrust-magnitude", "dot-initial-blink-frequency",
        "dot-max-blink-frequency", "introduction-entrance-speed",
        "introduction-exit-speed", "level-max-dot-displacement",
        "tooth-level-switch-frequency", "circulor-level-speed",
        "distance-modifier"]

    list_parameters = [
        "keys-up", "keys-right", "keys-down", "keys-left", "keys-quit",
        "keys-pause", "sprite-inner-palette", "sprite-outer-palette",
        "keys-advance", "keys-capture-screen", "keys-reset",
        "octo-level-palette", "horse-level-palette", "diortem-level-palette",
        "circulor-level-palette", "tooth-level-palette", "keys-pause",
        "keys-mute", "keys-skip", "keys-previous", "keys-next",
        "game-platforms", "keys-fullscreen"]

    tuple_parameters = [
        "introduction-toy-position", "introduction-prompt-position",
        "display-dimensions", "octo-level-dimensions",
        "octo-level-dot-position", "octo-level-bandit-position",
        "octo-level-rect-position", "diortem-level-dimensions",
        "diortem-level-dot-position", "diortem-level-bandit-position",
        "horse-level-dimensions", "horse-level-dot-position",
        "horse-level-bandit-position", "circulor-level-dimensions",
        "circulor-level-dot-position", "circulor-level-bandit-position",
        "tooth-level-dimensions", "tooth-level-dot-position",
        "tooth-level-bandit-position", "ending-toy-size", "ending-toy-position",
        "ending-plate-position", "octo-level-void-padding",
        "octo-level-spawn-range", "level-blink-frequency-range",
        "tooth-level-void-padding", "tooth-level-radius-range",
        "tooth-level-spawn-range", "diortem-level-void-padding",
        "diortem-level-segment-width-range", "diortem-level-shift-range",
        "diortem-level-segment-height-range", "diortem-level-leg-range",
        "circulor-level-height-range", "circulor-level-base-range",
        "circulor-level-void-padding", "horse-level-size-range",
        "horse-level-void-padding", "scoreboard-prompt-dimensions",
        "scoreboard-column-widths", "distance-dimensions"]

    boolean_parameters = []
    true_values = ["yes", "y", "true", "t", "1"]

    path_values = [
        "dot-image-path", "introduction-bg-path", "toy-image-path",
        "overworld-bg-path", "overworld-wall-path", "screen-capture-save-dir",
        "overworld-bandits-path", "level-bandit-sprite-path", "ending-bg-path",
        "ending-plate-path", "introduction-audio-path", "overworld-audio-path",
        "level-audio-path", "ending-audio-path", "horse-level-maze-path",
        "level-failure-sound", "level-success-sound", "sfx-path",
        "level-exit-path", "pause-image-path", "display-icon-path", "font-path",
        "resources-install-path", "scoreboard-scores-path"]
    
    def __init__(self, local=False):
        self.local = local
        self.set_file_path()
        self.parse()

    def set_file_path(self):
        path = "config"
        installed_path = join("/usr/local/share/esp-hadouken/", path)
        if exists(installed_path) and self.use_installed_file():
            path = installed_path
        self.file_path = path

    def use_installed_file(self):
        if "-l" in argv or self.local:
            return False
        return True
    
    def parse(self):
        for line in file(self.file_path):
            line = line.strip()
            if len(line) > 0 and line[0] != self.comments_operator:
                (lval, rval) = map(
                    str.strip, line.split(self.assignment_operator))
                if lval in self.int_parameters:
                    rval = int(rval)
                if lval in self.float_parameters:
                    rval = float(rval)
                if lval in self.boolean_parameters:
                    rval = True if self.is_true_value(rval) else False
                if lval in self.path_values:
                    rval = self.translate_path(rval)
                if lval in self.tuple_parameters:
                    rval = eval(rval)
                if lval in self.list_parameters:
                    rval = map(str.strip, rval.split(self.field_separator))
                    if self.is_key_assignment(lval):
                        rval = map(lambda key: getattr(pygame, key), rval)
                self[lval] = rval

    def translate_path(self, rval):
        new = ""
        if rval[0] == "/":
            new += "/"
        return new + os.path.join(*rval.split("/"))

    def is_true_value(self, rval):
        return rval.lower() in self.true_values

    def is_key_assignment(self, lval):
        pattern = "^" + self.keys_prefix + "*"
        return re.match(pattern, lval) is not None

54.237.183.249

September 13, 2013♦

from array import array
from time import sleep

import pygame
from pygame.mixer import Sound, get_init, pre_init

class Note(Sound):

    def __init__(self, frequency, volume=.1):
        self.frequency = frequency
        Sound.__init__(self, self.build_samples())
        self.set_volume(volume)

    def build_samples(self):
        period = int(round(get_init()[0] / self.frequency))
        samples = array("h", [0] * period)
        amplitude = 2 ** (abs(get_init()[1]) - 1) - 1
        for time in xrange(period):
            if time < period / 2:
                samples[time] = amplitude
            else:
                samples[time] = -amplitude
        return samples

if __name__ == "__main__":
    pre_init(44100, -16, 1, 1024)
    pygame.init()
    Note(440).play(-1)
    sleep(5)

This program generates and plays a 440 Hz tone for 5 seconds. It can be extended to generate the spectrum of notes with a frequency table or the frequency formula. Because the rewards in Send are idealized ocean waves, they can also be represented as tones. Each level has a tone in its goal and a tone based on where the player's disc lands. Both play at the end of a level, sounding harmonic for a close shot and discordant for a near miss. The game can dynamically create these tones using the program as a basis.

I'm also building an algorithmically generated song: Silk Routes (Scissored). Here is an example of how it sounds so far:

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