Pony-Fusion/fusion.php
Tailszefox 3e638ff216 Added cache
This will decrease the amount of CPU and RAM needed when generating fusions, but will use more disk space since we store each fusion as a PNG.

Check the changes in this commit for more information on how caching works.
2023-03-29 21:31:29 +02:00

82 lines
No EOL
2.2 KiB
PHP

<?php
function makeFusion($getFrom, $getTo, $fromCli)
{
$debug = FALSE;
include("ponies.php");
if(!isset($ponies[$getFrom]) || !isset($ponies[$getTo]))
die("Invalid combination");
$cacheFilename = "./cache/" . $getFrom . "_" . $getTo . ".png";
$cacheUrl = "/cache/" . $getFrom . "_" . $getTo . ".png";
$useCache = TRUE;
// If this fusion was already cached, just redirect to it.
if($useCache && file_exists($cacheFilename))
{
if($fromCli === FALSE)
{
header("Location: " . $cacheUrl);
}
return;
}
$from = imagecreatefrompng("./ponies/" . $ponies[$getFrom]["filename"]);
$to = imagecreatefrompng("./ponies/" . $ponies[$getTo]["filename"]);
for($i = 0; $i < imagecolorstotal($from); $i++)
{
if($i < imagecolorstotal($to) && $i <= 16)
{
$colorFrom = imagecolorsforindex($to, $i);
if($debug)
{
$colorTo = imagecolorsforindex($from, $i);
echo "$i\n";
print_r($colorFrom);
print_r($colorTo);
echo "\n";
}
if($getFrom == $getTo)
{
imagecolorset($from, $i, 255 - $colorFrom["red"], 255 - $colorFrom["green"], 255 - $colorFrom["blue"], $colorFrom["alpha"]);
}
else
{
imagecolorset($from, $i, $colorFrom["red"], $colorFrom["green"], $colorFrom["blue"], $colorFrom["alpha"]);
}
}
}
// Retain transparency
imagealphablending($from, false);
imagesavealpha($from, true);
imagefill($from, 0, 0, imagecolorallocatealpha($from, 255, 255, 255, 127));
// Crop 1px from bottom to avoid showing swatch
$from = imagecrop($from, ['x' => 0, 'y' => 0, 'width' => imagesx($from), 'height' => imagesy($from) - 1]);
if(!$debug && !$fromCli)
{
header('Content-Type: image/png');
imagepng($from);
}
// Save fusion to cache
imagepng($from, $cacheFilename);
imagedestroy($to);
}
// Don't run the function if we're running from the command line
if (php_sapi_name() !== 'cli')
{
$getFrom = $_GET["from"];
$getTo = $_GET["to"];
makeFusion($getFrom, $getTo, FALSE);
}
?>