Video Games

EVR.include("level/road/racer/flash/Strip.js");

EVR.Level.Road.Racer.Flash = function(racer)
{
   this.racer = racer;
   this.milestone_difference = FLASH_MILESTONE_DIFFERENCE;
   this.active_frequency = 0;
   this.last_streak = 0;
   // this.strip = new EVR.Level.Road.Racer.Flash.Strip(this);
}

EVR.Level.Road.Racer.Flash.prototype.update = function(streak)
{
   // var streak = parseInt(this.racer.level.streak);
   // var difference = Math.abs(streak - this.last_streak);
   // if (difference >= this.milestone_difference)
   // {
   //    this.setActiveLevel(streak);
   //    this.displayLevel();
   //    this.last_streak = streak;
   // }
}

EVR.Level.Road.Racer.Flash.prototype.setActiveLevel = function(streak)
{
   // var milestone = parseInt(streak/this.milestone_difference);
   // if (milestone < FLASH_FREQUENCIES)
   // {
   //    this.active_level = milestone;
   // }
}

EVR.Level.Road.Racer.Flash.prototype.displayLevel = function()
{
   // this.strip.slide(this.active_level);
}

EVR.Level.Road.Racer.Flash.prototype.draw = function()
{
   // this.strip.draw();
}

EVR.Level.Road.Racer.Flash.Level = function(flash, index)
{
   EVR.Graphic.call(this, flash.racer.avatar);
   this.flash = flash;
   this.index = index;
   this.animations_path = FLASH_ANIMATIONS_PATH;
   this.setAttributes();
   this.setImage();
   this.append();
   this.hide();
}
EVR.Level.Road.Racer.Flash.Level.prototype = new EVR.Graphic;
EVR.Level.Road.Racer.Flash.Level.prototype.setAttributes = function()
{
   this.set_proportions(1, 1);
   this.set_opacity(FLASH_OPACITY);
}
EVR.Level.Road.Racer.Flash.Level.prototype.setImage = function()
{
   var element = document.createElement("img");
   element.src = this.buildAnimationPath();
   element.style.width = "100%";
   element.style.height = "100%";
   this.element.appendChild(element);
}
EVR.Level.Road.Racer.Flash.Level.prototype.buildAnimationPath = function()
{
   return this.animations_path + (this.index + 1) + ".gif";
}
EVR.Level.Road.Racer.Flash.Level.prototype.show = function()
{
   this.css.visibility = "";
}
EVR.Level.Road.Racer.Flash.Level.prototype.hide = function()
{
   this.css.visibility = "hidden";
}

<?php
$GLOBALS["RELATIVE_IMAGE_DIRECTORY_PATH"] = "img/";
$GLOBALS["RELATIVE_IMAGE_CACHE_PATH"] = "flash/cache/";
$GLOBALS["IMAGE_FILE_FORMAT"] = "gif";
$GLOBALS["FLASH_COLORS"] = array("red", "green", "blue");
$GLOBALS["MIN_FREQUENCY"] = 10;
create_strip();
function create_strip()
{
   $height = $_GET["height"];
   $frequencies = $_GET["frequencies"];
   $image = build_strip($height, $frequencies);
   $file_name = save_image($image);
   echo $file_name;
}
function build_strip($height, $cell_count)
{
   $image = new Imagick();
   $min_frequency = $GLOBALS["MIN_FREQUENCY"];
   $palette = $GLOBALS["FLASH_COLORS"];
   $palette_count = count($palette);
   $frame_count = pow(2, $cell_count - 1) * $palette_count;
   $draw = new ImagickDraw();
   for ($frame_index = 0; $frame_index < $frame_count; $frame_index++)
   {
      $image->newImage($height * $cell_count, $height, "none");
      $x = 0;
      for ($cell_index = $cell_count - 2; $cell_index >= 0; $cell_index--)
      {
         $palette_index = ($frame_index / pow(2, $cell_index)) % $palette_count;
         $color = $palette[$palette_index];
         $x += $height;
         $draw->setFillColor($color);
         $draw->rectangle($x, 0, $x + $height, $height);
         $image->drawImage($draw);
         $image->setImageDelay($min_frequency);
      }
   }
   $image->setImageFormat($GLOBALS["IMAGE_FILE_FORMAT"]);
   return $image;
}
function save_image($image)
{
   go_to_save_path();
   $index = find_available_image_index();
   $file_name = build_file_name($index);
   $image->writeImages($file_name, true);
   return $file_name;
}
function go_to_save_path()
{
   go_to_image_directory();
   go_to_cache_directory();
}
function go_to_image_directory()
{
   $path = $GLOBALS["RELATIVE_IMAGE_DIRECTORY_PATH"];
   while (!is_dir($path))
   {
      chdir("..");
   }
   chdir($path);
}
function go_to_cache_directory()
{
   $path = $GLOBALS["RELATIVE_IMAGE_CACHE_PATH"];
   if (!is_dir($path))
   {
      $dirs = explode("/", $path);
      foreach ($dirs as $dir)
      {
         if ($dir != "")
         {
            mkdir($dir, 0770);
            chdir($dir);
         }
      }
   }
   else
   {
      chdir($path);
   }
}
function find_available_image_index()
{
   $index = 0;
   while (count(glob(++$index . "_*")));
   return $index;
}
function build_file_name($index)
{
   return $index . "_" . time() . "." . $GLOBALS["IMAGE_FILE_FORMAT"];
}

<?php
chdir("../../../../../../../../img/flash/animations/");
$files = glob("*.gif");
echo count($files);

EVR.Level.Road.Racer.Flash.Strip = function(flash)
{
   EVR.Graphic.call(this, flash.racer.avatar);
   this.index = 0;
   this.step = null;
   this.current_cache_index = null;
   this.setAttributes();
   this.append();
}
EVR.Level.Road.Racer.Flash.Strip.prototype = new EVR.Graphic;
EVR.Level.Road.Racer.Flash.Strip.prototype.setAttributes = function()
{
   this.set_proportions(1, 1);
   this.set_opacity(FLASH_OPACITY);
   this.css.backgroundAttachment = "fixed";
}
EVR.Level.Road.Racer.Flash.Strip.prototype.setStep = function()
{
   this.step = -this.container.get_dimensions()[0];
}
EVR.Level.Road.Racer.Flash.Strip.prototype.draw = function()
{
   EVR.Graphic.prototype.draw.call(this);
   if (this.container.get_dimensions()[0] != -this.step)
   {
      this.removeCachedStrip();
      this.setStep();
      this.setBackground();
      this.slide(this.index);
   }
}
EVR.Level.Road.Racer.Flash.Strip.prototype.removeCachedStrip = function()
{
   var index = this.current_cache_index;
   if (index)
   {
      var script = this.buildPathToSelf() + "remove_cached_strip.php";
      var query = "index=" + index;
      new EVR.Requester(script, query, true).execute();
   }
}
EVR.Level.Road.Racer.Flash.Strip.prototype.buildPathToSelf = function()
{
   return SOURCE_PATH + "level/road/racer/flash/";
}
EVR.Level.Road.Racer.Flash.Strip.prototype.setBackground = function()
{
   var script = this.buildPathToSelf() + "create_strip.php";
   var query = "height=" + -this.step + "&frequencies=" + FLASH_FREQUENCIES;
   var file_name = new EVR.Requester(script, query, true).execute();
   var path = "img/flash/cache/" + file_name;
   var cache_index = parseInt(file_name.split("_")[0]);
   this.css.background = "url('" + path + "')";
   this.current_cache_index = cache_index;
}
EVR.Level.Road.Racer.Flash.Strip.prototype.slide = function(index)
{
   this.css.backgroundPosition = index * this.step + "px 0";
   this.index = index;
}
EVR.Level.Road.Racer.Flash.Strip.prototype.toString = function()
{
   return "[object EVR.Level.Road.Racer.Flash.Strip]";
}

3.16.82.199

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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