tag. * The previews aren't regenerated when a skin file is modified, you have to manually delete * the preview file for this script to recreate it. * * -- REQUIREMENTS -- * PHP 4 or PHP 5 * PHP must be compiled with the GD library or the GD module must be active. * If your site is hosted on a *nix based system, be sure to 'chmod o+w' the folder where * you put your skins. * * -- CREDITS -- * This script was developed by spl0k for the teeworlds-db site. * * http://www.teeworlds.com/ * http://www.teeworlds-db.com/ * http://spl0k.unreal-design.com/ */ /** * Draw a body part centered * * @param dest (reference) - the image resource object to paint on * @param src (reference) - the image resource object of the skin * @param sprite - the name of the part to draw * @param x - the X component of the center where to draw * @param y - the Y component of the center where to draw * @param w - the width of the part on the destination image * @param h - the height of the part on the destination image * @return a image resource object if successful, FALSE otherwise */ function gfx_draw(&$dest, &$src, $sprite, $x, $y, $w, $h) { // Positions of the parts on the skin. We assume that the skin size is 256x128 switch($sprite) { case "body": $srcx = 0; $srcy = 0; $srcw = 96; $srch = 96; break; case "body_shadow": $srcx = 96; $srcy = 0; $srcw = 96; $srch = 96; break; case "foot": $srcx = 192; $srcy = 32; $srcw = 64; $srch = 32; break; case "foot_shadow": $srcx = 192; $srcy = 64; $srcw = 64; $srch = 32; break; case "eye": case "eye2": $srcx = 64; $srcy = 96; $srcw = 32; $srch = 32; break; } // Since the GD doesn't know to mirror images (negative resizing), we have // to do it by hand if($sprite == "eye2") { // First we create a temp image with just the eye $im = imagecreatetruecolor(32, 32); imagealphablending($im, false); imagecopy($im, $src, 0, 0, $srcx, $srcy, $srcw, $srch); // We mirror it... $im = mirror_x($im); // and we draw it on the tee. return imagecopyresampled($dest, $im, $x-$w/2, $y-$h/2, 0, 0, $w, $h, $srcw, $srch); } return imagecopyresampled($dest, $src, $x-$w/2, $y-$h/2, $srcx, $srcy, $w, $h, $srcw, $srch); } /** * Mirror an image * Code snippet from php.net site, by send at mail dot 2aj dot net. * Modified to mirror the X axis and not the Y axis. * * @see http://php.net/manual/function.imagecreatetruecolor.php#54155 * @param input_image_resource - the image to mirror * @return the mirrored image */ function mirror_x($input_image_resource) { $width = imagesx ( $input_image_resource ); $height = imagesy ( $input_image_resource ); $output_image_resource = imagecreatetruecolor ( $width, $height ); // If a pixel was transparent on the input, set it to transparent on the output too imagealphablending($output_image_resource, false); $x = 0; while ( $x < $width ) { for ( $i = 0; $i < $height; $i++ ) imagesetpixel ( $output_image_resource, $x, $i, imagecolorat ( $input_image_resource, ( $width - 1 - $x ), ( $i ) ) ); $x++; } return $output_image_resource; } /** * Extract the parts from the skin image and build the tee * This function is adapted from Teeworlds game code (gc_render.cpp, render_tee(), line 137) * * @param dest (reference) - the image resource object to paint on * @param src (reference) - the image resource object of the skin * @return TRUE if fully drawn, FALSE otherwise */ function paint(&$dest, &$src) { // Position of the center of the tee in the new image $position_x = 48.0; $position_y = 56.0; // first pass we draw the outline // second pass we draw the filling for($p=0; $p<2; $p++) { $outline = ($p==0); for($f=0; $f<2; $f++) { // 96.0 is the default tee size. $animscale = 96.0 * 1.0/64.0; $basesize = 96.0; if($f == 1) { // draw body $body_pos_x = $position_x; $body_pos_y = $position_y - 4.0 * $animscale; $sprite = $outline?"body_shadow":"body"; if(!gfx_draw($dest, $src, $sprite, $body_pos_x, $body_pos_y, $basesize, $basesize)) return false; // draw eyes if($p == 1) { $sprite = "eye"; $eyescale = $basesize*0.40; $h = $eyescale; $eyeseparation = (0.075 - 0.010)*$basesize; $offset_x = 0.125 * $basesize; $offset_y = -0.05 * $basesize; if(!gfx_draw($dest, $src, $sprite, $body_pos_x-$eyeseparation+$offset_x, $body_pos_y+$offset_y, $eyescale, $h) || !gfx_draw($dest, $src, $sprite."2", $body_pos_x+$eyeseparation+$offset_x, $body_pos_y+$offset_y, $eyescale, $h)) return false; } } // draw feet $w = $basesize; $h = $basesize/2; if($outline) $sprite = "foot_shadow"; else $sprite = "foot"; if(!gfx_draw($dest, $src, $sprite, $position_x+($f==0?-7.0:7.0)*$animscale, $position_y+10.0*$animscale, $w, $h)) return false; } } return true; } /** * Create the preview file * * @param file - path to the skin file * @return TRUE if successful, FALSE otherwise */ function create_tee($file) { // load the skin file $src = @imagecreatefrompng($file); if($src === false) return false; // Create the preview image and set its background transparent $dest = imagecreatetruecolor(96, 96); $back = imagecolorallocatealpha($dest, 255, 255, 255, 127); imagealphablending($dest, false); imagesavealpha($dest, true); imagefill($dest, 0, 0, $back); // Reactivate alpha blending to not erase other layers when drawing a new body part imagealphablending($dest, true); // Generating the Tee. if(!paint($dest, $src)) return false; // Saving the image to the disk. if(!@imagepng($dest, dirname($file)."/previews/".basename($file))) return false; // Freeing memory imagedestroy($src); imagedestroy($dest); return true; } /** * Main function, take a path to a skin file, generate the preview if needed and display it. * The folder you put your skins in must be writable by all users in order for the script * to create the preview folder. * If there's a problem creating the preview folder or the preview itself, it displays nothing * * @param file - The path to the skin file * @return TRUE if successful, FALSE if there's a problem */ function display_tee($file) { // Check if the previews folder exists. If not, create it and generate the preview if(!is_dir(dirname($file)."/previews")) { if(!@mkdir(dirname($file)."/previews")) return false; @chmod(dirname($file)."/previews", 0777); if(!create_tee($file)) return false; } // else if the folder exists but not the preview, generate it else if(!is_file(dirname($file)."/previews/".basename($file))) { if(!create_tee($file)) return false; } // display the preview echo ""; return true; } ?>