Created
December 2, 2010 04:20
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| <?php | |
| /* Copyright (c) 2010 Tyler Kennedy, Matvei Stefarov | |
| * | |
| * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| * of this software and associated documentation files (the "Software"), to deal | |
| * in the Software without restriction, including without limitation the rights | |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| * copies of the Software, and to permit persons to whom the Software is | |
| * furnished to do so, subject to the following conditions: | |
| * | |
| * The above copyright notice and this permission notice shall be included in | |
| * all copies or substantial portions of the Software. | |
| * | |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
| * THE SOFTWARE. | |
| */ | |
| class MCSkin { | |
| private $image = NULL; | |
| function __destructor () { | |
| if ($this->image != NULL) { | |
| imagedestroy($this->image); | |
| } | |
| } | |
| // Loads the skin image from a file path | |
| function AssignSkinFromFile ($file) { | |
| if ($this->image != NULL) { | |
| imagedestroy($this->image); | |
| } | |
| if(($this->image = imagecreatefrompng($file)) == False) { | |
| // Error occured | |
| throw new Exception("Could not open PNG file."); | |
| } | |
| if(!$this->Valid()) { | |
| throw new Exception("Invalid skin image."); | |
| } | |
| } | |
| // Loads the skin image from a string | |
| function AssignSkinFromString ($data) { | |
| if ($this->image != NULL) { | |
| imagedestroy($this->image); | |
| } | |
| if(($this->image = imagecreatefromstring($data)) == False) { | |
| // Error occured | |
| throw new Exception("Could not load image data from string."); | |
| } | |
| if(!$this->Valid()) { | |
| throw new Exception("Invalid skin image."); | |
| } | |
| } | |
| // Returns the width of the skin. | |
| function Width () { | |
| if($this->image != NULL) { | |
| return imagesx($this->image); | |
| } else { | |
| throw new Exception("No skin loaded."); | |
| } | |
| } | |
| // Returns the height of the skin. | |
| function Height () { | |
| if($this->image != NULL) { | |
| return imagesy($this->image); | |
| } else { | |
| throw new Exception("No skin loaded."); | |
| } | |
| } | |
| // Returns true if the skin has valid dimensions, false otherwise. | |
| function Valid () { | |
| return ($this->Width() != 64 || $this->Height() != 32) ? False : True; | |
| } | |
| // Returns an image handle consisting of an (optionally) scaled front view of the skin. | |
| // $r, $g, $b are used to construct the background color. | |
| function FrontImage ($scale = 1, $r = 255, $g = 255, $b = 255) { | |
| $newWidth = 16 * $scale; | |
| $newHeight = 32 * $scale; | |
| $newImage = imagecreatetruecolor(16, 32); | |
| $background = imagecolorallocate($newImage, $r, $g, $b); | |
| imagefilledrectangle($newImage, 0, 0, 16, 32, $background); | |
| //copy head | |
| imagecopy($newImage, $this->image, 4, 0, 8, 8, 8, 8); | |
| //copy head mask | |
| $this->imagecopyalpha($newImage, $this->image, 4, 0, 40, 8, 8, 8, imagecolorat($this->image, 63, 0)); | |
| //copy body | |
| imagecopy($newImage, $this->image, 4, 8, 20, 20, 8, 12); | |
| //copy left leg | |
| imagecopy($newImage, $this->image, 8, 20, 4, 20, 4, 12); | |
| //copy right leg | |
| for($i = 4; $i > 0; $i--) { | |
| imagecopy($newImage, $this->image, 3 + $i, 20, 8 - $i, 20, 1, 12); | |
| } | |
| //copy right arm | |
| for($i = 4; $i > 0; $i--) { | |
| imagecopy($newImage, $this->image, 11 + $i, 8, 48 - $i, 20, 1, 12); | |
| } | |
| //copy left arm | |
| imagecopy($newImage, $this->image, 0, 8, 44, 20, 4, 12); | |
| // Scale the image | |
| if($scale != 1) { | |
| $resize = imagecreatetruecolor($newWidth, $newHeight); | |
| imagecopyresized($resize, $newImage, 0, 0, 0, 0, $newWidth, $newHeight, 16, 32); | |
| imagedestroy($newImage); | |
| return $resize; | |
| } | |
| return $newImage; | |
| } | |
| // Returns an image handle consisting of an (optionally) scaled back view of the skin. | |
| // $r, $g, $b are used to construct the background color. | |
| function BackImage ($scale = 1, $r = 255, $g = 255, $b = 255) { | |
| $newWidth = 16 * $scale; | |
| $newHeight = 32 * $scale; | |
| $newImage = imagecreatetruecolor(16, 32); | |
| $background = imagecolorallocate($newImage, $r, $g, $b); | |
| imagefilledrectangle($newImage, 0, 0, 16, 32, $background); | |
| //copy head | |
| imagecopy($newImage, $this->image, 4, 0, 24, 8, 8, 8); | |
| //copy head mask | |
| $this->imagecopyalpha($newImage, $this->image, 4, 0, 56, 8, 8, 8, imagecolorat($this->image, 63, 0)); | |
| //copy body | |
| imagecopy($newImage, $this->image, 4, 8, 32, 20, 8, 12); | |
| //copy left leg | |
| for($i = 4; $i > 0; $i--) { | |
| imagecopy($newImage, $this->image, 7 + $i, 20, 16 - $i, 20, 1, 12); | |
| } | |
| //copy right leg | |
| imagecopy($newImage, $this->image, 4, 20, 12, 20, 4, 12); | |
| //copy right arm | |
| imagecopy($newImage, $this->image, 12, 8, 52, 20, 4, 12); | |
| //copy left arm | |
| for($i = 4; $i > 0; $i--) { | |
| imagecopy($newImage, $this->image, $i - 1, 8, 56 - $i, 20, 1, 12); | |
| } | |
| // Scale the image | |
| if($scale != 1) { | |
| $resize = imagecreatetruecolor($newWidth, $newHeight); | |
| imagecopyresized($resize, $newImage, 0, 0, 0, 0, $newWidth, $newHeight, 16, 32); | |
| imagedestroy($newImage); | |
| return $resize; | |
| } | |
| return $newImage; | |
| } | |
| // Returns an image handle consisting of an (optionally) scaled combined view of the skin. | |
| // $r, $g, $b are used to construct the background color. | |
| function CombinedImage ($scale = 1, $r = 255, $g = 255, $b = 255) { | |
| $newWidth = 37 * $scale; | |
| $newHeight = 32 * $scale; | |
| $newImage = imagecreatetruecolor(37, 32); | |
| $background = imagecolorallocate($newImage, $r, $g, $b); | |
| imagefilledrectangle($newImage, 0, 0, 37, 32, $background); | |
| //copy head | |
| imagecopy($newImage, $this->image, 4, 0, 8, 8, 8, 8); | |
| //copy head mask | |
| $this->imagecopyalpha($newImage, $this->image, 4, 0, 40, 8, 8, 8, imagecolorat($this->image, 63, 0)); | |
| //copy body | |
| imagecopy($newImage, $this->image, 4, 8, 20, 20, 8, 12); | |
| //copy left leg | |
| imagecopy($newImage, $this->image, 8, 20, 4, 20, 4, 12); | |
| //copy right leg | |
| for($i = 4; $i > 0; $i--) { | |
| imagecopy($newImage, $this->image, 3 + $i, 20, 8 - $i, 20, 1, 12); | |
| } | |
| //copy right arm | |
| for($i = 4; $i > 0; $i--) { | |
| imagecopy($newImage, $this->image, 11 + $i, 8, 48 - $i, 20, 1, 12); | |
| } | |
| //copy left arm | |
| imagecopy($newImage, $this->image, 0, 8, 44, 20, 4, 12); | |
| //copy head | |
| imagecopy($newImage, $this->image, 25, 0, 24, 8, 8, 8); | |
| //copy head mask | |
| $this->imagecopyalpha($newImage, $this->image, 25, 0, 56, 8, 8, 8, imagecolorat($this->image, 63, 0)); | |
| //copy body | |
| imagecopy($newImage, $this->image, 25, 8, 32, 20, 8, 12); | |
| //copy left leg | |
| for($i = 4; $i > 0; $i--) { | |
| imagecopy($newImage, $this->image, 28 + $i, 20, 16 - $i, 20, 1, 12); | |
| } | |
| //copy right leg | |
| imagecopy($newImage, $this->image, 25, 20, 12, 20, 4, 12); | |
| //copy left arm | |
| imagecopy($newImage, $this->image, 33, 8, 52, 20, 4, 12); | |
| //copy right arm | |
| for($i = 4; $i > 0; $i--) { | |
| imagecopy($newImage, $this->image, 20 + $i, 8, 56 - $i, 20, 1, 12); | |
| } | |
| // Scale the image | |
| if($scale != 1) { | |
| $resize = imagecreatetruecolor($newWidth, $newHeight); | |
| imagecopyresized($resize, $newImage, 0, 0, 0, 0, $newWidth, $newHeight, 37, 32); | |
| imagedestroy($newImage); | |
| return $resize; | |
| } | |
| return $newImage; | |
| } | |
| // Attempts to compensate for people (incorrectly) filling the head layers with random solid colors | |
| // Instead of leaving them 100% Alpha. | |
| function imagecopyalpha($dst, $src, $dst_x, $dst_y, $src_x, $src_y, $w, $h, $bg) { | |
| for($i = 0; $i < $w; $i++) { | |
| for($j = 0; $j < $h; $j++) { | |
| $rgb = imagecolorat($src, $src_x + $i, $src_y + $j); | |
| if(($rgb & 0xFFFFFF) == ($bg & 0xFFFFFF)) { | |
| $alpha = 127; | |
| } else { | |
| $colors = imagecolorsforindex($src, $rgb); | |
| $alpha = $colors["alpha"]; | |
| } | |
| imagecopymerge($dst, $src, $dst_x + $i, $dst_y + $j, $src_x + $i, $src_y + $j, 1, 1, 100 - (($alpha / 127) * 100)); | |
| } | |
| } | |
| } | |
| } | |
| ?> |
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