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222 lines
8.4 KiB
222 lines
8.4 KiB
<?php |
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final class Icon { |
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private $_width; |
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private $_height; |
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private $_hash; |
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private $_spriteZ = 800; |
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public function generateImageResource($hash, $width, $height, $filter = false, $radius = 0) { |
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$this->_width = $width; |
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$this->_height = $height; |
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$this->_hash = $hash; |
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$csh = hexdec(substr($this->_hash, 0, 1)); // corner sprite shape |
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$ssh = hexdec(substr($this->_hash, 1, 1)); // side sprite shape |
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$xsh = hexdec(substr($this->_hash, 2, 1)) & 7; // center sprite shape |
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$cro = hexdec(substr($this->_hash, 3, 1)) & 3; // corner sprite rotation |
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$sro = hexdec(substr($this->_hash, 4, 1)) & 3; // side sprite rotation |
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$xbg = hexdec(substr($this->_hash, 5, 1)) % 2; // center sprite background |
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$cfr = hexdec(substr($this->_hash, 6, 2)); |
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$cfg = hexdec(substr($this->_hash, 8, 2)); |
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$cfb = hexdec(substr($this->_hash, 10, 2)); |
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$sfr = hexdec(substr($this->_hash, 12, 2)); |
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$sfg = hexdec(substr($this->_hash, 14, 2)); |
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$sfb = hexdec(substr($this->_hash, 16, 2)); |
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$identicon = imagecreatetruecolor($this->_spriteZ * 3, $this->_spriteZ * 3); |
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if (function_exists('imageantialias')) { |
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imageantialias($identicon, TRUE); |
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} |
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$bg = imagecolorallocate($identicon, 255, 255, 255); |
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imagefilledrectangle($identicon, 0, 0, $this->_spriteZ, $this->_spriteZ, $bg); |
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$corner = $this->_getSprite($csh, $cfr, $cfg, $cfb, $cro); |
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imagecopy($identicon, $corner, 0, 0, 0, 0, $this->_spriteZ, $this->_spriteZ); |
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$corner = imagerotate($corner, 90, $bg); |
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imagecopy($identicon, $corner, 0, $this->_spriteZ * 2, 0, 0, $this->_spriteZ, $this->_spriteZ); |
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$corner = imagerotate($corner, 90, $bg); |
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imagecopy($identicon, $corner, $this->_spriteZ * 2, $this->_spriteZ * 2, 0, 0, $this->_spriteZ, $this->_spriteZ); |
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$corner = imagerotate($corner, 90, $bg); |
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imagecopy($identicon, $corner, $this->_spriteZ * 2, 0, 0, 0, $this->_spriteZ, $this->_spriteZ); |
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$side = $this->_getSprite($ssh, $sfr, $sfg, $sfb, $sro); |
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imagecopy($identicon, $side, $this->_spriteZ, 0, 0, 0, $this->_spriteZ, $this->_spriteZ); |
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$side = imagerotate($side, 90, $bg); |
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imagecopy($identicon, $side, 0, $this->_spriteZ, 0, 0, $this->_spriteZ, $this->_spriteZ); |
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$side = imagerotate($side, 90, $bg); |
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imagecopy($identicon, $side, $this->_spriteZ, $this->_spriteZ * 2, 0, 0, $this->_spriteZ, $this->_spriteZ); |
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$side = imagerotate($side, 90, $bg); |
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imagecopy($identicon, $side, $this->_spriteZ * 2, $this->_spriteZ, 0, 0, $this->_spriteZ, $this->_spriteZ); |
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$center = $this->_getCenter($xsh, $cfr, $cfg, $cfb, $sfr, $sfg, $sfb, $xbg); |
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imagecopy($identicon, $center, $this->_spriteZ, $this->_spriteZ, 0, 0, $this->_spriteZ, $this->_spriteZ); |
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imagecolortransparent($identicon, $bg); |
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$resized = imagecreatetruecolor($this->_width, $this->_height); |
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if (function_exists('imageantialias')) { |
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imageantialias($resized, TRUE); |
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} |
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$bg = imagecolorallocate($resized, 255, 255, 255); |
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imagefilledrectangle($resized, 0, 0, $this->_width, $this->_height, $bg); |
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imagecopyresampled($resized, $identicon, 0, 0, (imagesx($identicon) - $this->_spriteZ * 3) / 2, (imagesx($identicon) - $this->_spriteZ * 3) / 2, $this->_width, $this->_height, $this->_spriteZ * 3, $this->_spriteZ * 3); |
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if ($filter) { |
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imagefilter($resized, $filter); |
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} |
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if ($radius) { |
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imagearc($resized, $radius-1, $radius-1, $radius*2, $radius*2, 180, 270, $bg); |
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imagefilltoborder($resized, 0, 0, $bg, $bg); |
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imagearc($resized, $this->_width-$radius, $radius-1, $radius*2, $radius*2, 270, 0, $bg); |
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imagefilltoborder($resized, $this->_width-1, 0, $bg, $bg); |
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imagearc($resized, $radius-1, $this->_height-$radius, $radius*2, $radius*2, 90, 180, $bg); |
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imagefilltoborder($resized, 0, $this->_height-1, $bg, $bg); |
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imagearc($resized, $this->_width-$radius, $this->_height-$radius, $radius*2, $radius*2, 0, 90, $bg); |
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imagefilltoborder($resized, $this->_width-1, $this->_height-1, $bg, $bg); |
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imagecolortransparent($resized, $bg); |
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} |
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ob_start(); |
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imagepng($resized); |
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imagedestroy($resized); |
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return ob_get_clean(); |
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} |
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private function _getSprite($shape, $R, $G, $B, $rotation) { |
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$sprite = imagecreatetruecolor($this->_spriteZ, $this->_spriteZ); |
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if (function_exists('imageantialias')) { |
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imageantialias($sprite, TRUE); |
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} |
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$fg = imagecolorallocate($sprite, $R, $G, $B); |
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$bg = imagecolorallocate($sprite, 255, 255, 255); |
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imagefilledrectangle($sprite, 0, 0, $this->_spriteZ, $this->_spriteZ, $bg); |
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switch ($shape) { |
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case 0: // triangle |
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$shape = array(0.5, 1, 1, 0, 1, 1); |
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break; |
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case 1: // parallelogram |
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$shape = array(0.5, 0, 1, 0, 0.5, 1, 0, 1); |
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break; |
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case 2: // mouse ears |
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$shape = array(0.5, 0, 1, 0, 1, 1, 0.5, 1, 1, 0.5); |
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break; |
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case 3: // ribbon |
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$shape = array(0, 0.5, 0.5, 0, 1, 0.5, 0.5, 1, 0.5, 0.5); |
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break; |
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case 4: // sails |
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$shape = array(0, 0.5, 1, 0, 1, 1, 0, 1, 1, 0.5); |
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break; |
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case 5: // fins |
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$shape = array(1, 0, 1, 1, 0.5, 1, 1, 0.5, 0.5, 0.5); |
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break; |
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case 6: // beak |
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$shape = array(0, 0, 1, 0, 1, 0.5, 0, 0, 0.5, 1, 0, 1); |
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break; |
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case 7: // chevron |
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$shape = array(0, 0, 0.5, 0, 1, 0.5, 0.5, 1, 0, 1, 0.5, 0.5); |
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break; |
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case 8: // fish |
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$shape = array(0.5, 0, 0.5, 0.5, 1, 0.5, 1, 1, 0.5, 1, 0.5, 0.5, 0, 0.5); |
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break; |
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case 9: // kite |
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$shape = array(0, 0, 1, 0, 0.5, 0.5, 1, 0.5, 0.5, 1, 0.5, 0.5, 0, 1); |
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break; |
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case 10: // trough |
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$shape = array(0, 0.5, 0.5, 1, 1, 0.5, 0.5, 0, 1, 0, 1, 1, 0, 1); |
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break; |
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case 11: // rays |
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$shape = array(0.5, 0, 1, 0, 1, 1, 0.5, 1, 1, 0.75, 0.5, 0.5, 1, 0.25); |
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break; |
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case 12: // double rhombus |
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$shape = array(0, 0.5, 0.5, 0, 0.5, 0.5, 1, 0, 1, 0.5, 0.5, 1, 0.5, 0.5, 0, 1); |
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break; |
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case 13: // crown |
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$shape = array(0, 0, 1, 0, 1, 1, 0, 1, 1, 0.5, 0.5, 0.25, 0.5, 0.75, 0, 0.5, 0.5, 0.25); |
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break; |
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case 14: // radioactive |
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$shape = array(0, 0.5, 0.5, 0.5, 0.5, 0, 1, 0, 0.5, 0.5, 1, 0.5, 0.5, 1, 0.5, 0.5, 0, 1); |
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break; |
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default: // tiles |
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$shape = array(0, 0, 1, 0, 0.5, 0.5, 0.5, 0, 0, 0.5, 1, 0.5, 0.5, 1, 0.5, 0.5, 0, 1); |
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break; |
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} |
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for ($i = 0; $i < count($shape); $i++) |
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$shape[$i] = $shape[$i] * $this->_spriteZ; |
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imagefilledpolygon($sprite, $shape, $fg); |
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for ($i = 0; $i < $rotation; $i++) |
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$sprite = imagerotate($sprite, 90, $bg); |
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return $sprite; |
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} |
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private function _getCenter($shape, $fR, $fG, $fB, $bR, $bG, $bB, $usebg) { |
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$sprite = imagecreatetruecolor($this->_spriteZ, $this->_spriteZ); |
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if (function_exists('imageantialias')) { |
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imageantialias($sprite, TRUE); |
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} |
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$fg = imagecolorallocate($sprite, $fR, $fG, $fB); |
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if ($usebg > 0 && (abs($fR - $bR) > 127 || abs($fG - $bG) > 127 || abs($fB - $bB) > 127)) |
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$bg = imagecolorallocate($sprite, $bR, $bG, $bB); else |
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$bg = imagecolorallocate($sprite, 255, 255, 255); |
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imagefilledrectangle($sprite, 0, 0, $this->_spriteZ, $this->_spriteZ, $bg); |
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switch ($shape) { |
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case 0: // empty |
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$shape = array(); |
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break; |
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case 1: // fill |
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$shape = array(0, 0, 1, 0, 1, 1, 0, 1); |
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break; |
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case 2: // diamond |
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$shape = array(0.5, 0, 1, 0.5, 0.5, 1, 0, 0.5); |
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break; |
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case 3: // reverse diamond |
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$shape = array(0, 0, 1, 0, 1, 1, 0, 1, 0, 0.5, 0.5, 1, 1, 0.5, 0.5, 0, 0, 0.5); |
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break; |
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case 4: // cross |
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$shape = array(0.25, 0, 0.75, 0, 0.5, 0.5, 1, 0.25, 1, 0.75, 0.5, 0.5, 0.75, 1, 0.25, 1, 0.5, 0.5, 0, 0.75, 0, 0.25, 0.5, 0.5); |
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break; |
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case 5: // morning star |
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$shape = array(0, 0, 0.5, 0.25, 1, 0, 0.75, 0.5, 1, 1, 0.5, 0.75, 0, 1, 0.25, 0.5); |
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break; |
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case 6: // small square |
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$shape = array(0.33, 0.33, 0.67, 0.33, 0.67, 0.67, 0.33, 0.67); |
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break; |
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case 7: // checkerboard |
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$shape = array(0, 0, 0.33, 0, 0.33, 0.33, 0.66, 0.33, 0.67, 0, 1, 0, 1, 0.33, 0.67, 0.33, 0.67, 0.67, 1, 0.67, 1, 1, 0.67, 1, 0.67, 0.67, 0.33, 0.67, 0.33, 1, 0, 1, 0, 0.67, 0.33, 0.67, 0.33, 0.33, 0, 0.33); |
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break; |
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} |
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for ($i = 0; $i < count($shape); $i++) |
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$shape[$i] = $shape[$i] * $this->_spriteZ; |
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if (count($shape) > 0) |
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imagefilledpolygon($sprite, $shape, $fg); |
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return $sprite; |
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} |
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}
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