\u770b\u5230\u77e5\u4e4e\u6709\u5927\u795e\u7528c\u53ea\u8981\u5341\u51e0\u884c\u4ee3\u7801\u5c31\u53ef\u4ee5\u505a\u51fa\u4e00\u4e2a\u8d2a\u5403\u86c7\uff0c\u4e8e\u662f\u7a81\u7136\u60f3\u7528php\u4e5f\u505a\u4e00\u4e2a\u3002\u8fbe\u5230\u5927\u795e\u7684\u7a0b\u5ea6\u5f88\u96be\uff0c\u4f46\u597d\u6b79\u4e5f\u80fd\u591f\u8dd1\u8d77\u6765\u3002\u8fd9\u91cc\u5206\u4eab\u51fa\u6765\uff0c\u81ea\u5df1\u662f\u5728WSL+PHP7.4\u4e0b\u5f00\u53d1\u7684\uff0c\u5176\u4ed6\u73af\u5883\u61d2\u5f97\u6d4b\u8bd5\u4e86\u3002<\/p>\n\n\n\n
<?php\n\n\/\/ \u683c\u5b50\u72b6\u6001\nconst PIXEL_STATUS_SPACE=0;\nconst PIXEL_STATUS_UNPENATRABLE=1;\nconst PIXEL_STATUS_FOOD=2;\nconst PIXEL_STATUS_ENTER=3;\n\n\/\/ \u683c\u5b50\u663e\u793a\u5b57\u7b26\nconst PIXEL_BRICK='[]';\nconst PIXEL_FOOD='()';\nconst PIXEL_SPACE=' ';\nconst PIXEL_ENTER=PHP_EOL;\n\n\/\/ \u5899\u5bbd\u548c\u9ad8\nconst SCREEN_HEIGHT=20;\nconst SCREEN_WIDTH=32;\n\n\/**\n * \u547d\u4ee4\u884c\u5149\u6807\u63a7\u5236\n *\/\nclass Terminal{\n\n public static function cursorUp(int $line){\n echo "\\033[{$line}A";\n }\n\n public static function cursorDown(int $line){\n echo "\\033[{$line}B";\n }\n\n public static function write(string $string){\n echo $string;\n }\n}\n\n\/**\n * \u8ba1\u7b97\u53d1\u751f\u53d8\u5316\u7684\u884c\n *\n * @param array $rows\n * @return array\n *\/\nfunction detectChangedPixels(array $rows):array{\n static $prevRows=[];\n $diff=[];\n foreach ($rows as $rowKey=>$pixels){\n if(!isset($prevRows[$rowKey]) || $prevRows[$rowKey]!==$pixels){\n $diff[$rowKey]=$pixels;\n }\n }\n $prevRows=$rows;\n return $diff;\n}\n\n\/**\n * \u5237\u65b0\u6e32\u67d3\n *\n * @param bool $init\n *\/\nfunction refresh(bool $init=false):void{\n global $rows;\n $changedPixels=detectChangedPixels($rows);\n foreach ($changedPixels as $row=>$pixels){\n\n \/\/ \u79fb\u52a8\u5149\u6807\u5230\u9700\u8981\u5237\u65b0\u7684\u884c\n if(!$init){\n Terminal::cursorUp(SCREEN_HEIGHT-$row+2);\n }\n $pixels=array_map(function($pixel){\n return [\n PIXEL_STATUS_SPACE=>PIXEL_SPACE,\n PIXEL_STATUS_UNPENATRABLE=>PIXEL_BRICK,\n PIXEL_STATUS_ENTER=>PIXEL_ENTER,\n PIXEL_STATUS_FOOD=>PIXEL_FOOD\n ][$pixel];\n },$pixels);\n Terminal::write(implode('',$pixels));\n\n \/\/ \u5149\u6807\u590d\u4f4d\n if(!$init){\n Terminal::cursorDown(SCREEN_HEIGHT-$row+2);\n }\n }\n}\n\n\/\/ \u753b\u5899\n$rows=[];\n$rows[]=array_merge(array_fill(0,SCREEN_WIDTH,PIXEL_STATUS_UNPENATRABLE),[PIXEL_STATUS_ENTER]);\nfor($h=0;$h<SCREEN_HEIGHT;$h++){\n $_row=array_fill(0,SCREEN_WIDTH-1,PIXEL_STATUS_SPACE);\n $_row[0]=PIXEL_STATUS_UNPENATRABLE;\n $_row[count($_row)]=PIXEL_STATUS_UNPENATRABLE;\n $_row[]=PIXEL_STATUS_ENTER;\n $rows[]=$_row;\n}\n$rows[]=array_merge(array_fill(0,SCREEN_WIDTH,PIXEL_STATUS_UNPENATRABLE),[PIXEL_STATUS_ENTER]);\nrefresh(true);\n\n\/\/ \u753b\u86c7?\u548c\u98df\u7269\n$snake=[[10,10],[10,9]];\n$food=[13,7];\n$rows[10][10]=$rows[10][9]=PIXEL_STATUS_UNPENATRABLE;\n$rows[13][7]=PIXEL_STATUS_FOOD;\nrefresh();\n\n\/\/ \u5237\u65b0\u98df\u7269\u4f4d\u7f6e\nfunction food(){\n global $snake,$food,$rows;\n $availableSpaces=[];\n\n \/\/ \u6240\u6709\u53ef\u7528\u7a7a\u95f4\n for($h=1;$h<SCREEN_HEIGHT;$h++){\n for ($w=1;$w<SCREEN_WIDTH;$w++){\n if(in_array([$h,$w],$snake)){\n continue;\n }\n $availableSpaces[]=[$h,$w];\n }\n }\n if($availableSpaces){\n $food=$availableSpaces[array_rand($availableSpaces)];\n $rows[$food[0]][$food[1]]=PIXEL_STATUS_FOOD;\n return true;\n }\n return false;\n}\n\n\/**\n * \u79fb\u52a8\u86c7\n *\n * @param string|null $move\n *\/\nfunction snake(string $move=null){\n global $snake,$rows,$food;\n static $lastMove='d';\n $movementMap=[\n 'w'=>[-1,0,1],\n 'a'=>[0,-1,2],\n 's'=>[1,0,-1],\n 'd'=>[0,1,-2]\n ];\n if(!is_null($move) && isset($movementMap[$move])){\n if($movementMap[$lastMove][2]+$movementMap[$move][2]!==0){\n $lastMove=$move;\n }\n }\n $head=$snake[0];\n $newHead=[$head[0]+$movementMap[$lastMove][0],$head[1]+$movementMap[$lastMove][1]];\n\n \/\/ \u649e\u5899\u6216\u5403\u81ea\u5df1\n if($newHead[0]===0 || $newHead[0]===SCREEN_HEIGHT+1 || $newHead[1]===0 || $newHead[1]===SCREEN_WIDTH-1 || in_array($newHead,$snake)){\n exit('Game Over'.PHP_EOL);\n }\n\n array_unshift($snake,$newHead);\n $rows[$newHead[0]][$newHead[1]]=PIXEL_STATUS_UNPENATRABLE;\n\n if($newHead===$food){\n\n \/\/\u6ca1\u6709\u98df\u7269\u5224\u5b9a\u4e3a\u8d62\n if(!food()){\n exit('You Win'.PHP_EOL);\n }\n }else{\n $tail=array_pop($snake);\n $rows[$tail[0]][$tail[1]]=PIXEL_STATUS_SPACE;\n }\n}\n\n\/\/ \u975e\u963b\u585e\u83b7\u53d6\u8f93\u5165\nstream_set_blocking(STDIN,false);\n\n\/\/ \u8001\u5b9e\u8bf4\uff0c\u4e0d\u592a\u660e\u767d\u8fd9\u4e2a\u51fd\u6570\uff0c\u8ddf\u83b7\u53d6\u8f93\u5165\u6709\u5173\nreadline_callback_handler_install('',function(){});\n\nwhile (true){\n\n $key=stream_get_contents(STDIN,1);\n\n if($key==='q'){\n exit();\n }\n\n snake(empty($key)?null:$key);\n\n refresh();\n\n sleep(1);\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u770b\u5230\u77e5\u4e4e\u6709\u5927\u795e\u7528c\u53ea\u8981\u5341\u51e0\u884c\u4ee3\u7801\u5c31\u53ef\u4ee5\u505a\u51fa\u4e00\u4e2a\u8d2a\u5403\u86c7\uff0c\u4e8e\u662f\u7a81\u7136\u60f3\u7528php\u4e5f\u505a\u4e00\u4e2a\u3002\u8fbe\u5230\u5927\u795e\u7684\u7a0b\u5ea6\u5f88\u96be\uff0c\u4f46\u597d\u6b79\u4e5f […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[179],"tags":[186,188],"class_list":["post-40","post","type-post","status-publish","format-standard","hentry","category-notes","tag-php","tag-codes"],"_links":{"self":[{"href":"https:\/\/www.gwlin.com\/blog\/wp-json\/wp\/v2\/posts\/40","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gwlin.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gwlin.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gwlin.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gwlin.com\/blog\/wp-json\/wp\/v2\/comments?post=40"}],"version-history":[{"count":0,"href":"https:\/\/www.gwlin.com\/blog\/wp-json\/wp\/v2\/posts\/40\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.gwlin.com\/blog\/wp-json\/wp\/v2\/media?parent=40"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gwlin.com\/blog\/wp-json\/wp\/v2\/categories?post=40"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gwlin.com\/blog\/wp-json\/wp\/v2\/tags?post=40"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}