{"id":1894,"date":"2025-03-24T08:49:41","date_gmt":"2025-03-23T23:49:41","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1894"},"modified":"2025-03-24T08:49:41","modified_gmt":"2025-03-23T23:49:41","slug":"%e3%80%90%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91c%e5%88%9d%e5%bf%83%e8%80%85%e3%81%a7%e3%82%82%e4%bd%9c%e3%82%8c%e3%82%8b%ef%bc%81%e7%b0%a1%e5%8d%982d%e3%82%b2%e3%83%bc%e3%83%a0%e5%88%b6%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1894","title":{"rendered":"\u3010\u4fdd\u5b58\u7248\u3011C++\u521d\u5fc3\u8005\u3067\u3082\u4f5c\u308c\u308b\uff01\u7c21\u53582D\u30b2\u30fc\u30e0\u5236\u4f5c\u306e\u5b8c\u5168\u30ac\u30a4\u30c9"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">C++\u3067\u30b2\u30fc\u30e0\u5236\u4f5c\u3092\u59cb\u3081\u308b\u524d\u306b\u77e5\u3063\u3066\u304a\u304d\u305f\u3044\u3053\u3068<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u672a\u7d4c\u9a13\u3067\u3082C++\u304c\u6700\u9069\u306a\u7406\u7531<\/a>      <\/li>      <li>        <a href=\"#i-2\">\u5fc5\u8981\u306a\u958b\u767a\u74b0\u5883\u3068\u30c4\u30fc\u30eb\u306e\u6e96\u5099\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-3\">\u30b2\u30fc\u30e0\u958b\u767a\u306b\u5fc5\u8981\u306aC++\u306e\u57fa\u790e\u77e5\u8b58<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-4\">2D\u30b2\u30fc\u30e0\u5236\u4f5c\u306e\u57fa\u790e\u3092\u7406\u89e3\u3057\u3088\u3046<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-5\">\u30b2\u30fc\u30e0\u30eb\u30fc\u30d7\u306e\u4ed5\u7d44\u307f\u3068\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-6\">\u753b\u9762\u63cf\u753b\u306e\u57fa\u672c\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-7\">\u30ad\u30fc\u5165\u529b\u306e\u51e6\u7406\u3068\u5b9f\u88c5\u4f8b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-8\">\u5b9f\u8df5\uff01\u7c21\u5358\u306a2D\u30b2\u30fc\u30e0\u3092\u4f5c\u3063\u3066\u307f\u3088\u3046<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-9\">\u30b7\u30f3\u30d7\u30eb\u306a\u77ed\u671f\u9593\u3067\u5b8c\u6210\u3059\u308b\u30b2\u30fc\u30e0\u4f01\u753b\u306e\u30b3\u30c4<\/a>      <\/li>      <li>        <a href=\"#i-10\">\u30d7\u30ec\u30a4\u30e4\u30fc\u30ad\u30e3\u30e9\u30af\u30bf\u30fc\u306e\u79fb\u52d5\u5236\u5fa1\u3092\u5b9f\u88c5\u3059\u308b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-11\">\u5f53\u305f\u308a\u5224\u5b9a\u30b7\u30b9\u30c6\u30e0\u306e\u4f5c\u308a\u65b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-12\">\u30b2\u30fc\u30e0\u3092\u9762\u767d\u304f\u3059\u308b\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-13\">\u52b9\u679c\u97f3\u3068\u97f3\u697d\u306e\u8ffd\u52a0\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-14\">\u30b9\u30b3\u30a2\u30b7\u30b9\u30c6\u30e0\u306e\u5b9f\u88c5\u624b\u9806<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-15\">\u30b2\u30fc\u30e0\u306e\u72b6\u614b\u7ba1\u7406\u3068\u753b\u9762\u9077\u79fb\u306e\u5b9f\u88c5<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-16\">\u5b8c\u6210\u3057\u305f\u30b2\u30fc\u30e0\u306e\u6539\u826f\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-17\">\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050\u30c7\u30d0\u30c3\u30b0\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-18\">\u30d5\u30ec\u30fc\u30e0\u30ec\u30fc\u30c8\u5b89\u5b9a\u5316\u306e\u305f\u3081\u306e\u30b3\u30fc\u30c9\u6539\u5584<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-19\">\u30b2\u30fc\u30e0\u5236\u4f5c\u306e\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u3068\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">C++\u3067\u30b2\u30fc\u30e0\u5236\u4f5c\u3092\u59cb\u3081\u308b\u524d\u306b\u77e5\u3063\u3066\u304a\u304d\u305f\u3044\u3053\u3068<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u672a\u7d4c\u9a13\u3067\u3082C++\u304c\u6700\u9069\u306a\u7406\u7531<\/h3>\n\n\n\n<p>C++\u306f\u78ba\u304b\u306b\u96e3\u3057\u3044\u8a00\u8a9e\u3060\u3068\u8a00\u308f\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u30b2\u30fc\u30e0\u958b\u767a\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3068\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u7406\u7531\u3092\u3054\u8aac\u660e\u3057\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u512a\u308c\u305f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u7ba1\u7406\u3092\u76f4\u63a5\u5236\u5fa1\u3067\u304d\u308b\u305f\u3081\u3001\u9ad8\u901f\u306a\u51e6\u7406\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306b\u8fd1\u3044\u30ec\u30d9\u30eb\u3067\u306e\u6700\u9069\u5316\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u5927\u898f\u6a21\u306a\u30b2\u30fc\u30e0\u30a8\u30f3\u30b8\u30f3\u306e\u591a\u304f\u304cC++\u3067\u958b\u767a\u3055\u308c\u3066\u3044\u308b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8c4a\u5bcc\u306a\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b2\u30fc\u30e0\u958b\u767a\u306b\u7279\u5316\u3057\u305f\u66f8\u7c4d\u3084\u30aa\u30f3\u30e9\u30a4\u30f3\u6559\u6750\u304c\u5145\u5b9f<\/li>\n\n\n\n<li>\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u304c\u6d3b\u767a\u3067\u3001\u6280\u8853\u7684\u306a\u30b5\u30dd\u30fc\u30c8\u3092\u5f97\u3084\u3059\u3044<\/li>\n\n\n\n<li>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3084\u5b9f\u88c5\u4f8b\u304c\u591a\u6570\u5b58\u5728<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5c06\u6765\u6027\u306e\u9ad8\u3055<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u696d\u754c\u6a19\u6e96\u3068\u3057\u3066\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b<\/li>\n\n\n\n<li>\u7fd2\u5f97\u3057\u305f\u77e5\u8b58\u304c\u4ed6\u306e\u8a00\u8a9e\u306e\u5b66\u7fd2\u306b\u3082\u6d3b\u304b\u305b\u308b<\/li>\n\n\n\n<li>\u5546\u7528\u30b2\u30fc\u30e0\u958b\u767a\u3067\u3082\u6d3b\u7528\u3067\u304d\u308b\u30b9\u30ad\u30eb\u304c\u8eab\u306b\u3064\u304f<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u5fc5\u8981\u306a\u958b\u767a\u74b0\u5883\u3068\u30c4\u30fc\u30eb\u306e\u6e96\u5099\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u52b9\u7387\u7684\u306a\u30b2\u30fc\u30e0\u958b\u767a\u306e\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u74b0\u5883\u3092\u6574\u3048\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30f3\u30d1\u30a4\u30e9\u3068IDE<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Visual Studio Community\uff08Windows\u63a8\u5968\uff09<ul><li>\u7121\u6599\u3067\u4f7f\u7528\u53ef\u80fd<\/li><li>\u30c7\u30d0\u30c3\u30b0\u6a5f\u80fd\u304c\u5145\u5b9f<\/li><li>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u624b\u9806\uff1a<\/li><\/ul>\n<ol class=\"wp-block-list\">\n<li><a href=\"https:\/\/visualstudio.microsoft.com\/ja\/vs\/community\/\">Visual Studio \u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30da\u30fc\u30b8<\/a>\u306b\u30a2\u30af\u30bb\u30b9<\/li>\n\n\n\n<li>\u30a4\u30f3\u30b9\u30c8\u30fc\u30e9\u30fc\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/li>\n\n\n\n<li>\u300cC++\u306b\u3088\u308b\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u958b\u767a\u300d\u3092\u9078\u629e\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>Code::Blocks\uff08\u30af\u30ed\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\uff09\n<ul class=\"wp-block-list\">\n<li>\u8efd\u91cf\u3067\u6271\u3044\u3084\u3059\u3044<\/li>\n\n\n\n<li>GCC\u30b3\u30f3\u30d1\u30a4\u30e9\u304c\u4ed8\u5c5e<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5fc5\u8981\u306a\u30e9\u30a4\u30d6\u30e9\u30ea<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SDL2\uff08Simple DirectMedia Layer\uff09\n<ul class=\"wp-block-list\">\n<li>2D\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u3001\u30b5\u30a6\u30f3\u30c9\u3001\u5165\u529b\u51e6\u7406\u306b\u6700\u9069<\/li>\n\n\n\n<li>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u65b9\u6cd5\uff1a<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Windows + Visual Studio\u306e\u5834\u5408\n\/\/ 1. SDL\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\n\/\/ 2. \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8a2d\u5b9a\n#include &lt;SDL.h&gt;\n#include &lt;SDL_image.h&gt;\n\n\/\/ \u521d\u671f\u5316\u4f8b\nSDL_Init(SDL_INIT_EVERYTHING);<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SFML\uff08Simple and Fast Multimedia Library\uff09\n<ul class=\"wp-block-list\">\n<li>\u3088\u308a\u73fe\u4ee3\u7684\u306aC++\u98a8\u306e\u8a2d\u8a08<\/li>\n\n\n\n<li>\u4f7f\u7528\u4f8b\uff1a<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;SFML\/Graphics.hpp&gt;\n\nint main() {\n    \/\/ \u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u4f5c\u6210\n    sf::RenderWindow window(sf::VideoMode(800, 600), \"My Game\");\n\n    while (window.isOpen()) {\n        sf::Event event;\n        while (window.pollEvent(event)) {\n            if (event.type == sf::Event::Closed)\n                window.close();\n        }\n    }\n    return 0;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">\u30b2\u30fc\u30e0\u958b\u767a\u306b\u5fc5\u8981\u306aC++\u306e\u57fa\u790e\u77e5\u8b58<\/h3>\n\n\n\n<p>\u30b2\u30fc\u30e0\u958b\u767a\u3092\u59cb\u3081\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u6700\u4f4e\u9650\u306eC++\u77e5\u8b58\u3092\u307e\u3068\u3081\u307e\u3057\u305f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7684\u306a\u6587\u6cd5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5909\u6570\u306e\u5ba3\u8a00\u3068\u521d\u671f\u5316\nint playerScore = 0;\nfloat playerSpeed = 5.0f;\n\n\/\/ \u914d\u5217\u306e\u4f7f\u7528\nint enemyPositions[10];\n\n\/\/ \u6761\u4ef6\u5206\u5c90\nif (playerScore &gt; 100) {\n    \/\/ \u30ec\u30d9\u30eb\u30a2\u30c3\u30d7\u51e6\u7406\n}\n\n\/\/ \u30eb\u30fc\u30d7\u51e6\u7406\nfor (int i = 0; i &lt; 10; i++) {\n    \/\/ \u6575\u30ad\u30e3\u30e9\u30af\u30bf\u30fc\u306e\u66f4\u65b0\u51e6\u7406\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30af\u30e9\u30b9\u3068\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class GameObject {\nprivate:\n    float x, y;  \/\/ \u4f4d\u7f6e\n    float speed; \/\/ \u901f\u5ea6\n\npublic:\n    GameObject(float startX, float startY) : x(startX), y(startY), speed(0) {}\n\n    void move(float dx, float dy) {\n        x += dx * speed;\n        y += dy * speed;\n    }\n\n    void setSpeed(float newSpeed) {\n        speed = newSpeed;\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nGameObject player(100, 100);\nplayer.setSpeed(5.0f);\nplayer.move(1.0f, 0.0f); \/\/ \u53f3\u306b\u79fb\u52d5<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30dd\u30a4\u30f3\u30bf\u3068\u30e1\u30e2\u30ea\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u52d5\u7684\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\nGameObject* player = new GameObject(100, 100);\n\n\/\/ \u30e1\u30e2\u30ea\u306e\u89e3\u653e\u3092\u5fd8\u308c\u305a\u306b\ndelete player;\n\n\/\/ \u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306e\u4f7f\u7528\uff08\u63a8\u5968\uff09\n#include &lt;memory&gt;\nstd::unique_ptr&lt;GameObject&gt; player = std::make_unique&lt;GameObject&gt;(100, 100);\n\/\/ \u81ea\u52d5\u7684\u306b\u30e1\u30e2\u30ea\u89e3\u653e\u3055\u308c\u308b<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u306e\u57fa\u672c<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">void handleInput() {\n    SDL_Event event;\n    while (SDL_PollEvent(&amp;event)) {\n        switch (event.type) {\n            case SDL_QUIT:\n                \/\/ \u30b2\u30fc\u30e0\u7d42\u4e86\u51e6\u7406\n                break;\n            case SDL_KEYDOWN:\n                \/\/ \u30ad\u30fc\u5165\u529b\u51e6\u7406\n                if (event.key.keysym.sym == SDLK_SPACE) {\n                    \/\/ \u30b9\u30da\u30fc\u30b9\u30ad\u30fc\u304c\u62bc\u3055\u308c\u305f\u6642\u306e\u51e6\u7406\n                }\n                break;\n        }\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u57fa\u790e\u3092\u62bc\u3055\u3048\u3066\u304a\u304f\u3053\u3068\u3067\u3001\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u3042\u308b\u5b9f\u969b\u306e\u30b2\u30fc\u30e0\u958b\u767a\u3078\u30b9\u30e0\u30fc\u30ba\u306b\u79fb\u884c\u3067\u304d\u307e\u3059\u3002\u521d\u3081\u306f\u5b8c\u74a7\u306b\u7406\u89e3\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5b9f\u8df5\u7684\u306a\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u901a\u3058\u3066\u5f90\u3005\u306b\u7406\u89e3\u3092\u6df1\u3081\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">2D\u30b2\u30fc\u30e0\u5236\u4f5c\u306e\u57fa\u790e\u3092\u7406\u89e3\u3057\u3088\u3046<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u30b2\u30fc\u30e0\u30eb\u30fc\u30d7\u306e\u4ed5\u7d44\u307f\u3068\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30b2\u30fc\u30e0\u30eb\u30fc\u30d7\u306f\u3001\u30b2\u30fc\u30e0\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u4e2d\u6838\u3068\u306a\u308b\u90e8\u5206\u3067\u3059\u3002\u4e3b\u306b\u4ee5\u4e0b\u306e3\u3064\u306e\u51e6\u7406\u3092\u7e70\u308a\u8fd4\u3057\u884c\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5165\u529b\u51e6\u7406\uff08Input\uff09<\/li>\n\n\n\n<li>\u66f4\u65b0\u51e6\u7406\uff08Update\uff09<\/li>\n\n\n\n<li>\u63cf\u753b\u51e6\u7406\uff08Render\uff09<\/li>\n<\/ol>\n\n\n\n<p>\u57fa\u672c\u7684\u306a\u30b2\u30fc\u30e0\u30eb\u30fc\u30d7\u306e\u5b9f\u88c5\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;SDL.h&gt;\n#include &lt;chrono&gt;\n\nclass Game {\nprivate:\n    SDL_Window* window;\n    SDL_Renderer* renderer;\n    bool running;\n\n    \/\/ \u30d5\u30ec\u30fc\u30e0\u30ec\u30fc\u30c8\u5236\u5fa1\u7528\n    const int FPS = 60;\n    const int FRAME_DELAY = 1000 \/ FPS;\n\npublic:\n    Game() : window(nullptr), renderer(nullptr), running(true) {\n        \/\/ SDL\u306e\u521d\u671f\u5316\n        SDL_Init(SDL_INIT_EVERYTHING);\n\n        window = SDL_CreateWindow(\"My Game\", \n            SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,\n            800, 600, SDL_WINDOW_SHOWN);\n\n        renderer = SDL_CreateRenderer(window, -1, \n            SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);\n    }\n\n    void gameLoop() {\n        while (running) {\n            auto frameStart = SDL_GetTicks();\n\n            handleInput();    \/\/ \u5165\u529b\u51e6\u7406\n            update();        \/\/ \u66f4\u65b0\u51e6\u7406\n            render();        \/\/ \u63cf\u753b\u51e6\u7406\n\n            \/\/ \u30d5\u30ec\u30fc\u30e0\u30ec\u30fc\u30c8\u5236\u5fa1\n            int frameTime = SDL_GetTicks() - frameStart;\n            if (FRAME_DELAY &gt; frameTime) {\n                SDL_Delay(FRAME_DELAY - frameTime);\n            }\n        }\n    }\n\n    void cleanup() {\n        SDL_DestroyRenderer(renderer);\n        SDL_DestroyWindow(window);\n        SDL_Quit();\n    }\n\nprivate:\n    void handleInput() {\n        SDL_Event event;\n        while (SDL_PollEvent(&amp;event)) {\n            if (event.type == SDL_QUIT) {\n                running = false;\n            }\n        }\n    }\n\n    void update() {\n        \/\/ \u30b2\u30fc\u30e0\u306e\u72b6\u614b\u66f4\u65b0\u51e6\u7406\n    }\n\n    void render() {\n        SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);\n        SDL_RenderClear(renderer);\n\n        \/\/ \u30b2\u30fc\u30e0\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u63cf\u753b\u51e6\u7406\n\n        SDL_RenderPresent(renderer);\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u753b\u9762\u63cf\u753b\u306e\u57fa\u672c\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p>2D\u30b2\u30fc\u30e0\u306e\u63cf\u753b\u306b\u306f\u3001\u4e3b\u306b\u4ee5\u4e0b\u306e\u8981\u7d20\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b9\u30d7\u30e9\u30a4\u30c8\u306e\u63cf\u753b<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Sprite {\nprivate:\n    SDL_Texture* texture;\n    SDL_Rect srcRect;  \/\/ \u5143\u753b\u50cf\u306e\u7bc4\u56f2\n    SDL_Rect destRect; \/\/ \u63cf\u753b\u5148\u306e\u7bc4\u56f2\n\npublic:\n    Sprite(SDL_Renderer* renderer, const char* path) {\n        \/\/ \u753b\u50cf\u306e\u8aad\u307f\u8fbc\u307f\n        SDL_Surface* tempSurface = IMG_Load(path);\n        texture = SDL_CreateTextureFromSurface(renderer, tempSurface);\n        SDL_FreeSurface(tempSurface);\n\n        srcRect = {0, 0, 32, 32};  \/\/ \u30b9\u30d7\u30e9\u30a4\u30c8\u306e\u30b5\u30a4\u30ba\n        destRect = {100, 100, 32, 32}; \/\/ \u63cf\u753b\u4f4d\u7f6e\u3068\u30b5\u30a4\u30ba\n    }\n\n    void render(SDL_Renderer* renderer) {\n        SDL_RenderCopy(renderer, texture, &amp;srcRect, &amp;destRect);\n    }\n\n    void setPosition(int x, int y) {\n        destRect.x = x;\n        destRect.y = y;\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u51e6\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Animation {\nprivate:\n    int currentFrame;\n    int frameCount;\n    int frameDelay;\n    int frameTimer;\n    SDL_Rect srcRect;\n\npublic:\n    Animation(int frames, int delay) \n        : currentFrame(0), frameCount(frames), \n          frameDelay(delay), frameTimer(0) {\n        srcRect = {0, 0, 32, 32};\n    }\n\n    void update() {\n        frameTimer++;\n        if (frameTimer &gt;= frameDelay) {\n            currentFrame = (currentFrame + 1) % frameCount;\n            srcRect.x = currentFrame * 32; \/\/ \u30d5\u30ec\u30fc\u30e0\u4f4d\u7f6e\u306e\u66f4\u65b0\n            frameTimer = 0;\n        }\n    }\n\n    SDL_Rect* getCurrentFrame() {\n        return &amp;srcRect;\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">\u30ad\u30fc\u5165\u529b\u306e\u51e6\u7406\u3068\u5b9f\u88c5\u4f8b<\/h3>\n\n\n\n<p>\u52b9\u7387\u7684\u306a\u30ad\u30fc\u5165\u529b\u51e6\u7406\u306e\u5b9f\u88c5\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ad\u30fc\u30dc\u30fc\u30c9\u5165\u529b\u306e\u51e6\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class InputHandler {\nprivate:\n    const Uint8* keyState;\n\npublic:\n    InputHandler() {\n        keyState = SDL_GetKeyboardState(nullptr);\n    }\n\n    bool isKeyPressed(SDL_Scancode key) {\n        return keyState[key];\n    }\n\n    void update() {\n        \/\/ \u30ad\u30fc\u72b6\u614b\u306e\u66f4\u65b0\n        SDL_PumpEvents();\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid Player::handleInput(InputHandler&amp; input) {\n    if (input.isKeyPressed(SDL_SCANCODE_RIGHT)) {\n        x += speed;  \/\/ \u53f3\u79fb\u52d5\n    }\n    if (input.isKeyPressed(SDL_SCANCODE_LEFT)) {\n        x -= speed;  \/\/ \u5de6\u79fb\u52d5\n    }\n    if (input.isKeyPressed(SDL_SCANCODE_SPACE)) {\n        jump();     \/\/ \u30b8\u30e3\u30f3\u30d7\n    }\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30de\u30a6\u30b9\u5165\u529b\u306e\u51e6\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class MouseHandler {\nprivate:\n    int mouseX, mouseY;\n    bool leftButton, rightButton;\n\npublic:\n    void update() {\n        Uint32 buttons = SDL_GetMouseState(&amp;mouseX, &amp;mouseY);\n        leftButton = buttons &amp; SDL_BUTTON(SDL_BUTTON_LEFT);\n        rightButton = buttons &amp; SDL_BUTTON(SDL_BUTTON_RIGHT);\n    }\n\n    bool isLeftButtonPressed() const { return leftButton; }\n    bool isRightButtonPressed() const { return rightButton; }\n    void getMousePosition(int&amp; x, int&amp; y) const {\n        x = mouseX;\n        y = mouseY;\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u57fa\u672c\u8981\u7d20\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30b7\u30f3\u30d7\u30eb\u306a2D\u30b2\u30fc\u30e0\u306e\u571f\u53f0\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u8981\u7d20\u3092\u4f7f\u3063\u3066\u5b9f\u969b\u306b\u30b2\u30fc\u30e0\u3092\u4f5c\u3063\u3066\u3044\u304f\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-8\">\u5b9f\u8df5\uff01\u7c21\u5358\u306a2D\u30b2\u30fc\u30e0\u3092\u4f5c\u3063\u3066\u307f\u3088\u3046<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u30b7\u30f3\u30d7\u30eb\u306a\u77ed\u671f\u9593\u3067\u5b8c\u6210\u3059\u308b\u30b2\u30fc\u30e0\u4f01\u753b\u306e\u30b3\u30c4<\/h3>\n\n\n\n<p>\u521d\u3081\u3066\u306e\u30b2\u30fc\u30e0\u5236\u4f5c\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u70b9\u306b\u6ce8\u610f\u3057\u3066\u4f01\u753b\u3092\u7acb\u3066\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b2\u30fc\u30e0\u306e\u57fa\u672c\u8981\u7d20\u3092\u7d5e\u308a\u8fbc\u3080<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6838\u3068\u306a\u308b1\u3064\u306e\u30b2\u30fc\u30e0\u30e1\u30ab\u30cb\u30af\u30b9<\/li>\n\n\n\n<li>\u660e\u78ba\u306a\u30b2\u30fc\u30e0\u306e\u76ee\u6a19<\/li>\n\n\n\n<li>\u30b7\u30f3\u30d7\u30eb\u306a\u64cd\u4f5c\u65b9\u6cd5<\/li>\n\n\n\n<li>\u6700\u5c0f\u9650\u306e\u753b\u9762\u9077\u79fb<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u958b\u767a\u30b9\u30b3\u30fc\u30d7\u306e\u8a2d\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5236\u4f5c\u671f\u9593\uff1a2\u9031\u9593\u7a0b\u5ea6<\/li>\n\n\n\n<li>\u6a5f\u80fd\uff1a3-4\u500b\u306e\u4e3b\u8981\u6a5f\u80fd\u306b\u9650\u5b9a<\/li>\n\n\n\n<li>\u30a2\u30bb\u30c3\u30c8\uff1a\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u753b\u50cf\u3068\u97f3\u58f0<\/li>\n\n\n\n<li>\u76ee\u6a19\uff1a\u52d5\u304f\u30d7\u30ed\u30c8\u30bf\u30a4\u30d7\u306e\u5b8c\u6210<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u3068\u3057\u3066\u3001\u5358\u7d14\u306a\u6a2a\u30b9\u30af\u30ed\u30fc\u30eb\u30a2\u30af\u30b7\u30e7\u30f3\u30b2\u30fc\u30e0\u3092\u4f5c\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u30d7\u30ec\u30a4\u30e4\u30fc\u30ad\u30e3\u30e9\u30af\u30bf\u30fc\u306e\u79fb\u52d5\u5236\u5fa1\u3092\u5b9f\u88c5\u3059\u308b<\/h3>\n\n\n\n<p>\u307e\u305a\u3001\u30d7\u30ec\u30a4\u30e4\u30fc\u30ad\u30e3\u30e9\u30af\u30bf\u30fc\u306e\u57fa\u672c\u30af\u30e9\u30b9\u3092\u5b9f\u88c5\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Player {\nprivate:\n    float x, y;          \/\/ \u4f4d\u7f6e\n    float velocityX, velocityY; \/\/ \u901f\u5ea6\n    bool isJumping;      \/\/ \u30b8\u30e3\u30f3\u30d7\u72b6\u614b\n    SDL_Texture* texture; \/\/ \u30d7\u30ec\u30a4\u30e4\u30fc\u306e\u30c6\u30af\u30b9\u30c1\u30e3\n    SDL_Rect srcRect;     \/\/ \u30b9\u30d7\u30e9\u30a4\u30c8\u306e\u7bc4\u56f2\n    SDL_Rect destRect;    \/\/ \u63cf\u753b\u4f4d\u7f6e\u3068\u5927\u304d\u3055\n\n    const float MOVE_SPEED = 5.0f;\n    const float JUMP_FORCE = -15.0f;\n    const float GRAVITY = 0.8f;\n\npublic:\n    Player(SDL_Renderer* renderer, const char* spritePath) {\n        x = 100.0f;\n        y = 500.0f;\n        velocityX = 0.0f;\n        velocityY = 0.0f;\n        isJumping = false;\n\n        \/\/ \u30c6\u30af\u30b9\u30c1\u30e3\u306e\u8aad\u307f\u8fbc\u307f\n        SDL_Surface* tempSurface = IMG_Load(spritePath);\n        texture = SDL_CreateTextureFromSurface(renderer, tempSurface);\n        SDL_FreeSurface(tempSurface);\n\n        srcRect = {0, 0, 32, 32};\n        destRect = {(int)x, (int)y, 32, 32};\n    }\n\n    void handleInput(const Uint8* keyState) {\n        \/\/ \u5de6\u53f3\u79fb\u52d5\n        if (keyState[SDL_SCANCODE_LEFT]) {\n            velocityX = -MOVE_SPEED;\n        }\n        else if (keyState[SDL_SCANCODE_RIGHT]) {\n            velocityX = MOVE_SPEED;\n        }\n        else {\n            velocityX = 0.0f;\n        }\n\n        \/\/ \u30b8\u30e3\u30f3\u30d7\n        if (keyState[SDL_SCANCODE_SPACE] &amp;&amp; !isJumping) {\n            velocityY = JUMP_FORCE;\n            isJumping = true;\n        }\n    }\n\n    void update() {\n        \/\/ \u91cd\u529b\u306e\u9069\u7528\n        velocityY += GRAVITY;\n\n        \/\/ \u4f4d\u7f6e\u306e\u66f4\u65b0\n        x += velocityX;\n        y += velocityY;\n\n        \/\/ \u5730\u9762\u3068\u306e\u885d\u7a81\u5224\u5b9a\n        if (y &gt;= 500.0f) {\n            y = 500.0f;\n            velocityY = 0.0f;\n            isJumping = false;\n        }\n\n        \/\/ \u63cf\u753b\u4f4d\u7f6e\u306e\u66f4\u65b0\n        destRect.x = (int)x;\n        destRect.y = (int)y;\n    }\n\n    void render(SDL_Renderer* renderer) {\n        SDL_RenderCopy(renderer, texture, &amp;srcRect, &amp;destRect);\n    }\n\n    SDL_Rect getCollider() const {\n        return destRect;\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u5f53\u305f\u308a\u5224\u5b9a\u30b7\u30b9\u30c6\u30e0\u306e\u4f5c\u308a\u65b9<\/h3>\n\n\n\n<p>\u52b9\u7387\u7684\u306a\u5f53\u305f\u308a\u5224\u5b9a\u30b7\u30b9\u30c6\u30e0\u3092\u5b9f\u88c5\u3057\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class CollisionManager {\npublic:\n    \/\/ \u77e9\u5f62\u540c\u58eb\u306e\u885d\u7a81\u5224\u5b9a\n    static bool checkCollision(const SDL_Rect&amp; rectA, const SDL_Rect&amp; rectB) {\n        return (rectA.x &lt; rectB.x + rectB.w &amp;&amp;\n                rectA.x + rectA.w &gt; rectB.x &amp;&amp;\n                rectA.y &lt; rectB.y + rectB.h &amp;&amp;\n                rectA.y + rectA.h &gt; rectB.y);\n    }\n\n    \/\/ \u5186\u540c\u58eb\u306e\u885d\u7a81\u5224\u5b9a\n    static bool checkCircleCollision(float x1, float y1, float r1,\n                                   float x2, float y2, float r2) {\n        float dx = x2 - x1;\n        float dy = y2 - y1;\n        float distance = std::sqrt(dx * dx + dy * dy);\n        return distance &lt; (r1 + r2);\n    }\n};\n\n\/\/ \u969c\u5bb3\u7269\u30af\u30e9\u30b9\nclass Obstacle {\nprivate:\n    SDL_Rect rect;\n    bool active;\n\npublic:\n    Obstacle(int x, int y, int w, int h) : active(true) {\n        rect = {x, y, w, h};\n    }\n\n    bool isActive() const { return active; }\n    void deactivate() { active = false; }\n    SDL_Rect getCollider() const { return rect; }\n\n    void render(SDL_Renderer* renderer) {\n        if (active) {\n            SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);\n            SDL_RenderFillRect(renderer, &amp;rect);\n        }\n    }\n};\n\n\/\/ \u30b2\u30fc\u30e0\u5185\u3067\u306e\u885d\u7a81\u5224\u5b9a\u306e\u4f7f\u7528\u4f8b\nvoid Game::checkCollisions() {\n    SDL_Rect playerCollider = player.getCollider();\n\n    for (auto&amp; obstacle : obstacles) {\n        if (obstacle.isActive() &amp;&amp; \n            CollisionManager::checkCollision(playerCollider, obstacle.getCollider())) {\n            \/\/ \u885d\u7a81\u6642\u306e\u51e6\u7406\n            handleCollision(player, obstacle);\n        }\n    }\n}\n\nvoid Game::handleCollision(Player&amp; player, Obstacle&amp; obstacle) {\n    \/\/ \u30b2\u30fc\u30e0\u30aa\u30fc\u30d0\u30fc\u51e6\u7406\u3084\u70b9\u6570\u6e1b\u7b97\u306a\u3069\n    gameOver = true;\n}<\/pre>\n\n\n\n<p>\u5b9f\u88c5\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u52b9\u7387\u7684\u306a\u885d\u7a81\u5224\u5b9a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5358\u7d14\u306a\u77e9\u5f62\u5224\u5b9a\u304b\u3089\u59cb\u3081\u308b<\/li>\n\n\n\n<li>\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u8a73\u7d30\u306a\u5224\u5b9a\u3092\u8ffd\u52a0<\/li>\n\n\n\n<li>\u7a7a\u9593\u5206\u5272\u306a\u3069\u306e\u6700\u9069\u5316\u306f\u5f8c\u304b\u3089\u5b9f\u88c5<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u652f\u63f4<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30c7\u30d0\u30c3\u30b0\u8868\u793a\u7528\u306e\u95a2\u6570\nvoid renderDebugColliders(SDL_Renderer* renderer, const std::vector&lt;Obstacle&gt;&amp; obstacles) {\n    SDL_SetRenderDrawColor(renderer, 0, 255, 0, 255);\n    for (const auto&amp; obstacle : obstacles) {\n        if (obstacle.isActive()) {\n            SDL_Rect collider = obstacle.getCollider();\n            SDL_RenderDrawRect(renderer, &amp;collider);\n        }\n    }\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8003\u616e<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e0d\u8981\u306a\u885d\u7a81\u30c1\u30a7\u30c3\u30af\u3092\u907f\u3051\u308b<\/li>\n\n\n\n<li>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u72b6\u614b\u7ba1\u7406\u3092\u9069\u5207\u306b\u884c\u3046<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u52b9\u7387\u306e\u826f\u3044\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u4f7f\u7528<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30b3\u30fc\u30c9\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u57fa\u672c\u7684\u306a2D\u30a2\u30af\u30b7\u30e7\u30f3\u30b2\u30fc\u30e0\u306e\u571f\u53f0\u304c\u5b8c\u6210\u3057\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u306e\u30b2\u30fc\u30e0\u3092\u3088\u308a\u9762\u767d\u304f\u3059\u308b\u305f\u3081\u306e\u6a5f\u80fd\u8ffd\u52a0\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-12\">\u30b2\u30fc\u30e0\u3092\u9762\u767d\u304f\u3059\u308b\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">\u52b9\u679c\u97f3\u3068\u97f3\u697d\u306e\u8ffd\u52a0\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30b5\u30a6\u30f3\u30c9\u306f\u3001\u30b2\u30fc\u30e0\u306e\u81e8\u5834\u611f\u3092\u9ad8\u3081\u308b\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002SDL_Mixer\u3092\u4f7f\u7528\u3057\u3066\u5b9f\u88c5\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class AudioManager {\nprivate:\n    std::unordered_map&lt;std::string, Mix_Chunk*&gt; soundEffects;\n    std::unordered_map&lt;std::string, Mix_Music*&gt; music;\n\npublic:\n    AudioManager() {\n        \/\/ SDL_Mixer\u306e\u521d\u671f\u5316\n        Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 2048);\n    }\n\n    ~AudioManager() {\n        \/\/ \u30ea\u30bd\u30fc\u30b9\u306e\u89e3\u653e\n        for (auto&amp; sound : soundEffects) {\n            Mix_FreeChunk(sound.second);\n        }\n        for (auto&amp; bgm : music) {\n            Mix_FreeMusic(bgm.second);\n        }\n        Mix_CloseAudio();\n    }\n\n    void loadSound(const std::string&amp; name, const char* path) {\n        Mix_Chunk* sound = Mix_LoadWAV(path);\n        if (sound) {\n            soundEffects[name] = sound;\n        }\n    }\n\n    void loadMusic(const std::string&amp; name, const char* path) {\n        Mix_Music* bgm = Mix_LoadMUS(path);\n        if (bgm) {\n            music[name] = bgm;\n        }\n    }\n\n    void playSound(const std::string&amp; name, int volume = 128) {\n        if (soundEffects.count(name) &gt; 0) {\n            Mix_VolumeChunk(soundEffects[name], volume);\n            Mix_PlayChannel(-1, soundEffects[name], 0);\n        }\n    }\n\n    void playMusic(const std::string&amp; name, int loops = -1) {\n        if (music.count(name) &gt; 0) {\n            Mix_PlayMusic(music[name], loops);\n        }\n    }\n\n    void stopMusic() {\n        Mix_HaltMusic();\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nAudioManager audio;\naudio.loadSound(\"jump\", \"assets\/sounds\/jump.wav\");\naudio.loadSound(\"coin\", \"assets\/sounds\/coin.wav\");\naudio.loadMusic(\"bgm\", \"assets\/music\/background.mp3\");\n\n\/\/ \u30b2\u30fc\u30e0\u5185\u3067\u306e\u4f7f\u7528\naudio.playMusic(\"bgm\");  \/\/ BGM\u518d\u751f\naudio.playSound(\"jump\"); \/\/ \u30b8\u30e3\u30f3\u30d7\u97f3\u518d\u751f<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u30b9\u30b3\u30a2\u30b7\u30b9\u30c6\u30e0\u306e\u5b9f\u88c5\u624b\u9806<\/h3>\n\n\n\n<p>\u30b9\u30b3\u30a2\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u30b2\u30fc\u30e0\u306e\u9032\u884c\u72b6\u6cc1\u3092\u7ba1\u7406\u3059\u308b\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class ScoreManager {\nprivate:\n    int currentScore;\n    int highScore;\n    std::vector&lt;ScoreMultiplier&gt; multipliers;\n\n    struct ScoreMultiplier {\n        float multiplier;\n        int remainingTime;\n    };\n\npublic:\n    ScoreManager() : currentScore(0), highScore(0) {}\n\n    void addPoints(int points) {\n        float totalMultiplier = calculateMultiplier();\n        int finalPoints = static_cast&lt;int&gt;(points * totalMultiplier);\n        currentScore += finalPoints;\n\n        if (currentScore &gt; highScore) {\n            highScore = currentScore;\n            saveHighScore();\n        }\n    }\n\n    void addMultiplier(float multiplier, int duration) {\n        multipliers.push_back({multiplier, duration});\n    }\n\n    void update() {\n        \/\/ \u30de\u30eb\u30c1\u30d7\u30e9\u30a4\u30e4\u30fc\u306e\u6642\u9593\u66f4\u65b0\n        for (auto it = multipliers.begin(); it != multipliers.end();) {\n            it-&gt;remainingTime--;\n            if (it-&gt;remainingTime &lt;= 0) {\n                it = multipliers.erase(it);\n            } else {\n                ++it;\n            }\n        }\n    }\n\n    void saveHighScore() {\n        std::ofstream file(\"highscore.dat\");\n        if (file.is_open()) {\n            file &lt;&lt; highScore;\n            file.close();\n        }\n    }\n\n    void loadHighScore() {\n        std::ifstream file(\"highscore.dat\");\n        if (file.is_open()) {\n            file &gt;&gt; highScore;\n            file.close();\n        }\n    }\n\nprivate:\n    float calculateMultiplier() {\n        float total = 1.0f;\n        for (const auto&amp; mult : multipliers) {\n            total *= mult.multiplier;\n        }\n        return total;\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u30b2\u30fc\u30e0\u306e\u72b6\u614b\u7ba1\u7406\u3068\u753b\u9762\u9077\u79fb\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u30b2\u30fc\u30e0\u306e\u72b6\u614b\u7ba1\u7406\u306b\u306f\u3001State Pattern\u3092\u4f7f\u7528\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u30b2\u30fc\u30e0\u72b6\u614b\u306e\u57fa\u5e95\u30af\u30e9\u30b9\nclass GameState {\npublic:\n    virtual ~GameState() {}\n    virtual void enter() = 0;\n    virtual void exit() = 0;\n    virtual void handleInput(SDL_Event&amp; event) = 0;\n    virtual void update() = 0;\n    virtual void render(SDL_Renderer* renderer) = 0;\n};\n\n\/\/ \u30e1\u30cb\u30e5\u30fc\u72b6\u614b\nclass MenuState : public GameState {\nprivate:\n    std::vector&lt;Button&gt; buttons;\n\npublic:\n    void enter() override {\n        \/\/ \u30e1\u30cb\u30e5\u30fc\u753b\u9762\u306e\u521d\u671f\u5316\n        buttons.push_back(Button(\"Start Game\", 300, 200));\n        buttons.push_back(Button(\"Options\", 300, 300));\n        buttons.push_back(Button(\"Exit\", 300, 400));\n    }\n\n    void handleInput(SDL_Event&amp; event) override {\n        if (event.type == SDL_MOUSEBUTTONDOWN) {\n            int mouseX, mouseY;\n            SDL_GetMouseState(&amp;mouseX, &amp;mouseY);\n\n            for (auto&amp; button : buttons) {\n                if (button.isClicked(mouseX, mouseY)) {\n                    button.onClick();\n                }\n            }\n        }\n    }\n\n    \/\/ \u305d\u306e\u4ed6\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u30e1\u30bd\u30c3\u30c9...\n};\n\n\/\/ \u30b2\u30fc\u30e0\u30d7\u30ec\u30a4\u72b6\u614b\nclass PlayState : public GameState {\nprivate:\n    Player player;\n    std::vector&lt;Enemy&gt; enemies;\n    ScoreManager scoreManager;\n\npublic:\n    void enter() override {\n        \/\/ \u30b2\u30fc\u30e0\u958b\u59cb\u6642\u306e\u521d\u671f\u5316\n        player.reset();\n        enemies.clear();\n        scoreManager.resetScore();\n    }\n\n    void update() override {\n        player.update();\n\n        for (auto&amp; enemy : enemies) {\n            enemy.update();\n        }\n\n        checkCollisions();\n        scoreManager.update();\n    }\n\n    \/\/ \u305d\u306e\u4ed6\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u30e1\u30bd\u30c3\u30c9...\n};\n\n\/\/ \u72b6\u614b\u7ba1\u7406\u30af\u30e9\u30b9\nclass GameStateManager {\nprivate:\n    std::stack&lt;std::unique_ptr&lt;GameState&gt;&gt; states;\n\npublic:\n    void pushState(std::unique_ptr&lt;GameState&gt; state) {\n        if (!states.empty()) {\n            states.top()-&gt;exit();\n        }\n        states.push(std::move(state));\n        states.top()-&gt;enter();\n    }\n\n    void popState() {\n        if (!states.empty()) {\n            states.top()-&gt;exit();\n            states.pop();\n            if (!states.empty()) {\n                states.top()-&gt;enter();\n            }\n        }\n    }\n\n    void handleInput(SDL_Event&amp; event) {\n        if (!states.empty()) {\n            states.top()-&gt;handleInput(event);\n        }\n    }\n\n    void update() {\n        if (!states.empty()) {\n            states.top()-&gt;update();\n        }\n    }\n\n    void render(SDL_Renderer* renderer) {\n        if (!states.empty()) {\n            states.top()-&gt;render(renderer);\n        }\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nclass Game {\nprivate:\n    GameStateManager stateManager;\n\npublic:\n    void init() {\n        stateManager.pushState(std::make_unique&lt;MenuState&gt;());\n    }\n\n    void run() {\n        SDL_Event event;\n        while (running) {\n            while (SDL_PollEvent(&amp;event)) {\n                stateManager.handleInput(event);\n            }\n\n            stateManager.update();\n            stateManager.render(renderer);\n        }\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6a5f\u80fd\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30b2\u30fc\u30e0\u306b\u3088\u308a\u6df1\u3044\u6ca1\u5165\u611f\u3068\u697d\u3057\u3055\u3092\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u5b9f\u88c5\u3092\u6700\u9069\u5316\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-16\">\u5b8c\u6210\u3057\u305f\u30b2\u30fc\u30e0\u306e\u6539\u826f\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050\u30c7\u30d0\u30c3\u30b0\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u306f\u3001\u7279\u306b\u30b2\u30fc\u30e0\u958b\u767a\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u554f\u984c\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u65b9\u6cd5\u3067\u52b9\u679c\u7684\u306b\u5bfe\u51e6\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class ResourceManager {\nprivate:\n    \/\/ \u751f\u30dd\u30a4\u30f3\u30bf\u306e\u4ee3\u308f\u308a\u306b\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3092\u4f7f\u7528\n    std::unordered_map&lt;std::string, std::shared_ptr&lt;SDL_Texture&gt;&gt; textures;\n    std::unordered_map&lt;std::string, std::unique_ptr&lt;Sound&gt;&gt; sounds;\n\npublic:\n    void loadTexture(const std::string&amp; name, SDL_Renderer* renderer, const char* path) {\n        SDL_Surface* surface = IMG_Load(path);\n        if (surface) {\n            SDL_Texture* texture = SDL_CreateTextureFromSurface(renderer, surface);\n            SDL_FreeSurface(surface);\n            if (texture) {\n                textures[name] = std::shared_ptr&lt;SDL_Texture&gt;(texture, SDL_DestroyTexture);\n            }\n        }\n    }\n\n    std::shared_ptr&lt;SDL_Texture&gt; getTexture(const std::string&amp; name) {\n        if (textures.count(name) &gt; 0) {\n            return textures[name];\n        }\n        return nullptr;\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u76e3\u8996<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class MemoryTracker {\nprivate:\n    size_t allocatedMemory;\n    std::unordered_map&lt;void*, size_t&gt; allocations;\n\npublic:\n    static MemoryTracker&amp; getInstance() {\n        static MemoryTracker instance;\n        return instance;\n    }\n\n    void* trackAllocation(size_t size) {\n        void* ptr = std::malloc(size);\n        allocatedMemory += size;\n        allocations[ptr] = size;\n        return ptr;\n    }\n\n    void trackDeallocation(void* ptr) {\n        if (allocations.count(ptr) &gt; 0) {\n            allocatedMemory -= allocations[ptr];\n            allocations.erase(ptr);\n            std::free(ptr);\n        }\n    }\n\n    size_t getCurrentMemoryUsage() const {\n        return allocatedMemory;\n    }\n\n    void printMemoryReport() {\n        std::cout &lt;&lt; \"Current memory usage: \" &lt;&lt; allocatedMemory &lt;&lt; \" bytes\\n\";\n        std::cout &lt;&lt; \"Number of active allocations: \" &lt;&lt; allocations.size() &lt;&lt; \"\\n\";\n    }\n};\n\n\/\/ \u30ab\u30b9\u30bf\u30e0\u30a2\u30ed\u30b1\u30fc\u30bf\u306e\u5b9f\u88c5\u4f8b\ntemplate&lt;typename T&gt;\nclass TrackedAllocator {\npublic:\n    T* allocate(size_t n) {\n        return static_cast&lt;T*&gt;(MemoryTracker::getInstance().trackAllocation(n * sizeof(T)));\n    }\n\n    void deallocate(T* p, size_t n) {\n        MemoryTracker::getInstance().trackDeallocation(p);\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">\u30d5\u30ec\u30fc\u30e0\u30ec\u30fc\u30c8\u5b89\u5b9a\u5316\u306e\u305f\u3081\u306e\u30b3\u30fc\u30c9\u6539\u5584<\/h3>\n\n\n\n<p>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3057\u3001\u5b89\u5b9a\u3057\u305f\u30d5\u30ec\u30fc\u30e0\u30ec\u30fc\u30c8\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306e\u30c6\u30af\u30cb\u30c3\u30af\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30d7\u30fc\u30ea\u30f3\u30b0<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename T&gt;\nclass ObjectPool {\nprivate:\n    std::vector&lt;std::unique_ptr&lt;T&gt;&gt; objects;\n    std::queue&lt;T*&gt; available;\n    size_t maxSize;\n\npublic:\n    ObjectPool(size_t size) : maxSize(size) {\n        for (size_t i = 0; i &lt; size; ++i) {\n            auto obj = std::make_unique&lt;T&gt;();\n            available.push(obj.get());\n            objects.push_back(std::move(obj));\n        }\n    }\n\n    T* acquire() {\n        if (available.empty()) {\n            return nullptr;\n        }\n        T* obj = available.front();\n        available.pop();\n        return obj;\n    }\n\n    void release(T* obj) {\n        available.push(obj);\n    }\n};\n\n\/\/ \u30d1\u30fc\u30c6\u30a3\u30af\u30eb\u30b7\u30b9\u30c6\u30e0\u3067\u306e\u4f7f\u7528\u4f8b\nclass ParticleSystem {\nprivate:\n    ObjectPool&lt;Particle&gt; particlePool;\n    std::vector&lt;Particle*&gt; activeParticles;\n\npublic:\n    ParticleSystem(size_t maxParticles) : particlePool(maxParticles) {}\n\n    void emitParticle(float x, float y) {\n        if (Particle* p = particlePool.acquire()) {\n            p-&gt;init(x, y);\n            activeParticles.push_back(p);\n        }\n    }\n\n    void update() {\n        for (auto it = activeParticles.begin(); it != activeParticles.end();) {\n            if ((*it)-&gt;isExpired()) {\n                particlePool.release(*it);\n                it = activeParticles.erase(it);\n            } else {\n                (*it)-&gt;update();\n                ++it;\n            }\n        }\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u7a7a\u9593\u5206\u5272\u306b\u3088\u308b\u885d\u7a81\u691c\u51fa\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class QuadTree {\nprivate:\n    struct Node {\n        SDL_Rect bounds;\n        std::vector&lt;GameObject*&gt; objects;\n        std::unique_ptr&lt;Node&gt; children[4];\n        bool isLeaf;\n    };\n\n    std::unique_ptr&lt;Node&gt; root;\n    const int MAX_OBJECTS = 10;\n    const int MAX_LEVELS = 5;\n\npublic:\n    QuadTree(const SDL_Rect&amp; bounds) {\n        root = std::make_unique&lt;Node&gt;();\n        root-&gt;bounds = bounds;\n        root-&gt;isLeaf = true;\n    }\n\n    void insert(GameObject* obj) {\n        insertObject(root.get(), obj, 0);\n    }\n\n    std::vector&lt;GameObject*&gt; query(const SDL_Rect&amp; area) {\n        std::vector&lt;GameObject*&gt; result;\n        queryNode(root.get(), area, result);\n        return result;\n    }\n\nprivate:\n    void insertObject(Node* node, GameObject* obj, int level) {\n        if (!node-&gt;isLeaf &amp;&amp; level &lt; MAX_LEVELS) {\n            \/\/ \u9069\u5207\u306a\u5b50\u30ce\u30fc\u30c9\u306b\u633f\u5165\n            int index = getQuadrant(node-&gt;bounds, obj-&gt;getBounds());\n            if (index != -1) {\n                insertObject(node-&gt;children[index].get(), obj, level + 1);\n                return;\n            }\n        }\n\n        node-&gt;objects.push_back(obj);\n\n        if (node-&gt;objects.size() &gt; MAX_OBJECTS &amp;&amp; level &lt; MAX_LEVELS) {\n            split(node);\n        }\n    }\n\n    void split(Node* node) {\n        \/\/ \u30ce\u30fc\u30c9\u30924\u5206\u5272\n        int subWidth = node-&gt;bounds.w \/ 2;\n        int subHeight = node-&gt;bounds.h \/ 2;\n\n        for (int i = 0; i &lt; 4; ++i) {\n            SDL_Rect childBounds = {\n                node-&gt;bounds.x + (i % 2) * subWidth,\n                node-&gt;bounds.y + (i \/ 2) * subHeight,\n                subWidth,\n                subHeight\n            };\n            node-&gt;children[i] = std::make_unique&lt;Node&gt;();\n            node-&gt;children[i]-&gt;bounds = childBounds;\n            node-&gt;children[i]-&gt;isLeaf = true;\n        }\n\n        node-&gt;isLeaf = false;\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u30b2\u30fc\u30e0\u5236\u4f5c\u306e\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u3068\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9<\/h3>\n\n\n\n<p>\u30b2\u30fc\u30e0\u958b\u767a\u306e\u30b9\u30ad\u30eb\u3092\u3055\u3089\u306b\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u30b9\u30c6\u30c3\u30d7\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8a2d\u8a08\u30d1\u30bf\u30fc\u30f3\u306e\u5b66\u7fd2<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Observer \u30d1\u30bf\u30fc\u30f3\uff08\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\uff09<\/li>\n\n\n\n<li>Command \u30d1\u30bf\u30fc\u30f3\uff08\u5165\u529b\u51e6\u7406\uff09<\/li>\n\n\n\n<li>Factory \u30d1\u30bf\u30fc\u30f3\uff08\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u751f\u6210\uff09<\/li>\n\n\n\n<li>Component \u30d1\u30bf\u30fc\u30f3\uff08\u30b2\u30fc\u30e0\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u69cb\u9020\uff09<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u6df1\u6398\u308a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u30c4\u30fc\u30eb\u306e\u4f7f\u7528<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u51e6\u7406\u306e\u5c0e\u5165<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u63a8\u5968\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u66f8\u7c4d\n<ul class=\"wp-block-list\">\n<li>\u201cGame Programming Patterns\u201d by Robert Nystrom<\/li>\n\n\n\n<li>\u201cEffective Modern C++\u201d by Scott Meyers<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u30aa\u30f3\u30e9\u30a4\u30f3\u30ea\u30bd\u30fc\u30b9\n<ul class=\"wp-block-list\">\n<li>SDL Wiki (https:\/\/wiki.libsdl.org\/)<\/li>\n\n\n\n<li>C++ Reference (https:\/\/en.cppreference.com\/)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\n<ul class=\"wp-block-list\">\n<li>GameDev.net<\/li>\n\n\n\n<li>r\/gamedev (Reddit)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6b21\u306e\u30b9\u30c6\u30c3\u30d7<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>3D\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u306e\u5b66\u7fd2\uff08OpenGL\/DirectX\uff09<\/li>\n\n\n\n<li>\u7269\u7406\u30a8\u30f3\u30b8\u30f3\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5bfe\u6226\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30a2\u30bb\u30c3\u30c8\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u306e\u6539\u826f<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u3068\u6539\u826f\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5b89\u5b9a\u3057\u305f\u9ad8\u6027\u80fd\u306a\u30b2\u30fc\u30e0\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u5e38\u306b\u65b0\u3057\u3044\u6280\u8853\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u5b66\u3073\u7d9a\u3051\u308b\u3053\u3068\u304c\u3001\u30b2\u30fc\u30e0\u958b\u767a\u8005\u3068\u3057\u3066\u306e\u6210\u9577\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":{"0":"post-1894","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-cpp","7":"nothumb"},"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1894","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1894"}],"version-history":[{"count":1,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1894\/revisions"}],"predecessor-version":[{"id":1895,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1894\/revisions\/1895"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1894"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1894"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}