{"id":629,"date":"2026-10-31T14:12:16","date_gmt":"2026-10-31T06:12:16","guid":{"rendered":"https:\/\/btc354.com\/index.php\/2026\/10\/31\/%e7%94%a8-javascript-%e9%87%8d%e5%86%99-1997-%e5%b9%b4%e3%80%8agta%e3%80%8b%e5%bc%95%e6%93%8e%ef%bc%9awebgl-%e9%80%86%e5%90%91%e5%b7%a5%e7%a8%8b%e4%b8%8e%e6%b5%8f%e8%a7%88%e5%99%a8%e6%b8%b8%e6%88%8f\/"},"modified":"2026-10-31T16:59:05","modified_gmt":"2026-10-31T08:59:05","slug":"%e7%94%a8-javascript-%e9%87%8d%e5%86%99-1997-%e5%b9%b4%e3%80%8agta%e3%80%8b%e5%bc%95%e6%93%8e%ef%bc%9awebgl-%e9%80%86%e5%90%91%e5%b7%a5%e7%a8%8b%e4%b8%8e%e6%b5%8f%e8%a7%88%e5%99%a8%e6%b8%b8%e6%88%8f","status":"publish","type":"post","link":"https:\/\/btc354.com\/index.php\/2026\/10\/31\/%e7%94%a8-javascript-%e9%87%8d%e5%86%99-1997-%e5%b9%b4%e3%80%8agta%e3%80%8b%e5%bc%95%e6%93%8e%ef%bc%9awebgl-%e9%80%86%e5%90%91%e5%b7%a5%e7%a8%8b%e4%b8%8e%e6%b5%8f%e8%a7%88%e5%99%a8%e6%b8%b8%e6%88%8f\/","title":{"rendered":"\u7528 JavaScript \u91cd\u5199 1997 \u5e74\u300aGTA\u300b\u5f15\u64ce\uff1aWebGL \u9006\u5411\u5de5\u7a0b\u4e0e\u6d4f\u89c8\u5668\u6e38\u620f\u67b6\u6784\u5b9e\u6218"},"content":{"rendered":"<div class=\"doc-article-container\">\n<div class=\"doc-spec-grid\">\n<div class=\"doc-spec-item\">\n            <span class=\"doc-spec-label\">\ud83c\udfaf \u76ee\u6807\u6280\u672f\u6808<\/span><br \/>\n            <span class=\"doc-spec-value\">JS \/ WebGL 2.0 \/ TypedArray<\/span>\n        <\/div>\n<div class=\"doc-spec-item\">\n            <span class=\"doc-spec-label\">\u26a1 \u67b6\u6784\u96be\u5ea6<\/span><br \/>\n            <span class=\"doc-spec-value\">\u8d44\u6df1\u67b6\u6784\u7ea7 (Level 4)<\/span>\n        <\/div>\n<div class=\"doc-spec-item\">\n            <span class=\"doc-spec-label\">\ud83d\ude80 \u6838\u5fc3\u91cf\u5316\u6536\u76ca<\/span><br \/>\n            <span class=\"doc-spec-value\">60 FPS \u7a33\u5b9a\u5e27\u7387 &amp; \u96f6\u62f7\u8d1d\u89e3\u6790<\/span>\n        <\/div>\n<\/p><\/div>\n<blockquote class=\"doc-lead\"><p>\n        <strong>\u5bfc\u8bed\uff1a<\/strong>\u5f53 1997 \u5e74\u7684\u300aGrand Theft Auto\u300b\u4ee5\u4fef\u89c6 2D \u89c6\u89d2\u5b9a\u4e49\u5f00\u653e\u4e16\u754c\u65f6\uff0c\u6ca1\u4eba\u4f1a\u60f3\u5230\u8fd1\u4e09\u5341\u5e74\u540e\uff0c\u6709\u4eba\u7528 JavaScript \u4e0e WebGL \u5728\u6d4f\u89c8\u5668\u91cc\u4ece\u96f6\u91cd\u5efa\u5b83\u7684\u5f15\u64ce\u3002Bramus Van Damme \u7684 <code>GTA.js<\/code> \u9879\u76ee\u5e76\u975e\u7b80\u5355\u7684\u6a21\u62df\u5668\u5c01\u88c5\uff0c\u800c\u662f\u76f4\u63a5\u89e3\u6790\u6e38\u620f\u539f\u59cb demo \u6587\u4ef6\u3001\u91cd\u5efa\u6e32\u67d3\u4e0e\u7269\u7406\u7ba1\u7ebf\u3002\u672c\u6587\u4ee5\u67b6\u6784\u5e08\u89c6\u89d2\uff0c\u62c6\u89e3\u8fd9\u4e00\u9006\u5411\u5de5\u7a0b\u80cc\u540e\u7684\u6280\u672f\u51b3\u7b56\u3001WebGL \u6e32\u67d3\u67b6\u6784\u4e0e\u6d4f\u89c8\u5668\u7aef\u6027\u80fd\u6cbb\u7406\u7b56\u7565\u3002\n    <\/p><\/blockquote>\n<figure class=\"doc-figure\">\n        <img decoding=\"async\" src=\"https:\/\/btc354.com\/wp-content\/uploads\/2026\/10\/tech-retro-gaming-engine.jpg\" alt=\"WebGL \u6e38\u620f\u5f15\u64ce\u8fd0\u884c\u65f6\u67b6\u6784\u4e0e\u590d\u53e4\u7ecf\u5178\u786c\u4ef6\u89e3\u6784\" \/><figcaption>\u56fe 1\uff1a1997 \u5e74\u7ecf\u5178\u6e38\u620f\u5f15\u64ce\u8d44\u4ea7\u9006\u5411\u5de5\u7a0b\u4e0e\u73b0\u4ee3 WebGL \u6d4f\u89c8\u5668\u7ba1\u7ebf\u91cd\u5efa\u5168\u666f\u793a\u610f<\/figcaption><\/figure>\n<h2 class=\"doc-h2\">\u4e00\u3001\u6280\u672f\u6f14\u8fdb\u80cc\u666f\u4e0e\u6838\u5fc3\u75db\u70b9<\/h2>\n<p class=\"doc-p\">\u6d4f\u89c8\u5668\u65e9\u5df2\u4e0d\u662f\u201c\u6587\u6863\u67e5\u770b\u5668\u201d\u3002\u968f\u7740 WebGL 2.0\u3001WebAssembly\u3001OffscreenCanvas \u4e0e Web Workers \u7684\u6210\u719f\uff0cJavaScript \u8fd0\u884c\u65f6\u5177\u5907\u4e86\u627f\u8f7d\u5b9e\u65f6 3D \u6e32\u67d3\u4e0e\u590d\u6742\u6e38\u620f\u903b\u8f91\u7684\u80fd\u529b\u3002\u7136\u800c\uff0c\u5c06\u4e00\u6b3e 1997 \u5e74\u7684\u5546\u4e1a\u6e38\u620f\u5f15\u64ce\u201c\u642c\u8fdb\u201d\u6d4f\u89c8\u5668\uff0c\u9762\u4e34\u4e09\u7c7b\u6838\u5fc3\u75db\u70b9\uff1a<\/p>\n<ul class=\"doc-list\">\n<li><strong>\u8d44\u4ea7\u683c\u5f0f\u9ed1\u76d2\uff1a<\/strong>\u521d\u4ee3 GTA \u7684 demo \u6587\u4ef6\u91c7\u7528\u79c1\u6709\u4e8c\u8fdb\u5236\u683c\u5f0f\uff08\u5730\u56fe\u74e6\u7247\u3001\u7cbe\u7075\u56fe\u3001\u8f66\u8f86\u7269\u7406\u53c2\u6570\u3001\u97f3\u9891\u6d41\uff09\uff0c\u6ca1\u6709\u516c\u5f00\u89c4\u8303\u3002\u91cd\u5efa\u5f15\u64ce\u7684\u7b2c\u4e00\u6b65\u4e0d\u662f\u5199\u4ee3\u7801\uff0c\u800c\u662f\u9006\u5411\u6570\u636e\u5e03\u5c40\u3002<\/li>\n<li><strong>\u6e32\u67d3\u8303\u5f0f\u9519\u914d\uff1a<\/strong>\u539f\u5f15\u64ce\u9762\u5411 DOS\/Windows \u7684\u8f6f\u4ef6\u6e32\u67d3\u4e0e\u8c03\u8272\u677f\u7eb9\u7406\uff0c\u800c WebGL \u57fa\u4e8e GPU \u7ba1\u7ebf\u3001\u6d6e\u70b9\u7eb9\u7406\u4e0e\u7740\u8272\u5668\u3002\u76f4\u63a5\u9010\u50cf\u7d20\u642c\u8fd0\u4f1a\u5bfc\u81f4\u6027\u80fd\u5d29\u6e83\uff0c\u5fc5\u987b\u91cd\u65b0\u8bbe\u8ba1\u6279\u5904\u7406\u4e0e\u7eb9\u7406\u56fe\u96c6\u7b56\u7565\u3002<\/li>\n<li><strong>\u4e3b\u7ebf\u7a0b\u4e89\u7528\uff1a<\/strong>JavaScript \u5355\u7ebf\u7a0b\u6a21\u578b\u4e0b\uff0c\u6e38\u620f\u5faa\u73af\u3001\u8f93\u5165\u5904\u7406\u3001\u8d44\u6e90\u89e3\u6790\u4e0e\u6e32\u67d3\u63d0\u4ea4\u5171\u4eab\u540c\u4e00\u4e8b\u4ef6\u5faa\u73af\u3002\u4efb\u4f55\u4e00\u6b21\u5927\u5bf9\u8c61\u5206\u914d\u6216\u540c\u6b65\u89e3\u6790\u90fd\u53ef\u80fd\u9020\u6210\u5e27\u7387\u6296\u52a8\u3002<\/li>\n<\/ul>\n<p class=\"doc-p\">Bramus \u7684\u9879\u76ee\u4e4b\u6240\u4ee5\u503c\u5f97\u7814\u7a76\uff0c\u5728\u4e8e\u5b83\u6ca1\u6709\u9009\u62e9\u201c\u7528 Emscripten \u7f16\u8bd1\u539f\u7248 C \u4ee3\u7801\u201d\u8fd9\u6761\u6377\u5f84\uff0c\u800c\u662f<strong>\u7528\u7eaf JavaScript \u91cd\u65b0\u5b9e\u73b0\u5f15\u64ce\u903b\u8f91<\/strong>\uff0c\u4ece\u800c\u628a\u4e0a\u8ff0\u75db\u70b9\u8f6c\u5316\u4e3a\u53ef\u89c2\u6d4b\u3001\u53ef\u8c03\u4f18\u7684\u67b6\u6784\u95ee\u9898\u3002<\/p>\n<h2 class=\"doc-h2\">\u4e8c\u3001\u5e95\u5c42\u67b6\u6784\u4e0e\u6838\u5fc3\u673a\u5236\u6df1\u5ea6\u5256\u6790<\/h2>\n<h3 class=\"doc-h3\">2.1 \u8d44\u6e90\u9006\u5411\uff1a\u4ece\u4e8c\u8fdb\u5236\u5230\u8fd0\u884c\u65f6\u6570\u636e\u7ed3\u6784<\/h3>\n<p class=\"doc-p\">\u521d\u4ee3 GTA \u7684\u5730\u56fe\u7531\u5927\u91cf\u5c0f\u74e6\u7247\uff08tile\uff09\u62fc\u63a5\u800c\u6210\uff0c\u8f66\u8f86\u4e0e\u884c\u4eba\u4ee5\u7cbe\u7075\uff08sprite\uff09\u5f62\u5f0f\u6e32\u67d3\u3002\u9006\u5411\u7684\u5173\u952e\u662f\u8bc6\u522b\u6587\u4ef6\u5934\u3001\u7d22\u5f15\u8868\u4e0e\u6570\u636e\u5757\u7684\u504f\u79fb\u5173\u7cfb\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5178\u578b\u7684\u4e8c\u8fdb\u5236\u89e3\u6790\u9aa8\u67b6\uff0c\u5c55\u793a\u5982\u4f55\u7528 <code>DataView<\/code> \u4ee5\u96f6\u62f7\u8d1d\u65b9\u5f0f\u8bfb\u53d6\u539f\u59cb demo \u6587\u4ef6\u4e2d\u7684\u74e6\u7247\u7d22\u5f15\uff1a<\/p>\n<div class=\"doc-code-card\">\n<div class=\"doc-code-header\">\n            <span>parseMapIndex.js (\u4e8c\u8fdb\u5236\u96f6\u62f7\u8d1d\u89e3\u6790\u9aa8\u67b6)<\/span><br \/>\n            <span class=\"doc-code-lang\">JavaScript<\/span>\n        <\/div>\n<div class=\"doc-code-body\">\/\/ \u89e3\u6790 GTA demo \u5730\u56fe\u6587\u4ef6\u7684\u74e6\u7247\u7d22\u5f15\u8868\uff08\u793a\u610f\uff09<br \/>\nasync function parseMapIndex(buffer) {<br \/>\n    const view = new DataView(buffer);<br \/>\n    const magic = view.getUint32(0, true); \/\/ \u5c0f\u7aef\u5e8f\u9b54\u6570\u6821\u9a8c<br \/>\n    if (magic !== 0x47544131) throw new Error(&#8216;Invalid GTA map file&#8217;);<\/p>\n<p>    const tileCount = view.getUint32(4, true);<br \/>\n    const indexOffset = view.getUint32(8, true);<br \/>\n    const tiles = new Array(tileCount);<\/p>\n<p>    \/\/ \u6bcf\u4e2a\u74e6\u7247\u6761\u76ee\uff1a2 \u5b57\u8282 tileId + 2 \u5b57\u8282 flags + 4 \u5b57\u8282 dataOffset<br \/>\n    for (let i = 0; i &lt; tileCount; i++) {<br \/>\n        const base = indexOffset + i * 8;<br \/>\n        tiles[i] = {<br \/>\n            id: view.getUint16(base, true),<br \/>\n            flags: view.getUint16(base + 2, true),<br \/>\n            offset: view.getUint32(base + 4, true),<br \/>\n        };<br \/>\n    }<br \/>\n    return tiles;<br \/>\n}<\/p><\/div>\n<\/p><\/div>\n<div class=\"doc-callout doc-callout-info\">\n<div class=\"doc-callout-title\">\ud83d\udca1 \u67b6\u6784\u6838\u5fc3\u51b3\u7b56\uff1aTypedArray \u5185\u5b58\u6241\u5e73\u5316<\/div>\n<p>        \u89e3\u6790\u5c42\u4e0e\u6e32\u67d3\u5c42\u5fc5\u987b\u5f7b\u5e95\u89e3\u8026\u3002\u89e3\u6790\u4ea7\u7269\u5e94\u5f53\u662f\u4e0d\u53ef\u53d8\u7684\u6241\u5e73\u6570\u7ec4\uff08TypedArray \u4f18\u5148\uff09\uff0c\u800c\u975e\u5305\u542b\u6570\u4e07\u4e2a\u5c0f\u5bf9\u8c61\u7684\u6811\u72b6\u7ed3\u6784\uff0c\u4ee5\u5927\u5e45\u964d\u4f4e V8 GC \u538b\u529b\u5e76\u4fbf\u4e8e\u901a\u8fc7 <code>postMessage<\/code> \u96f6\u62f7\u8d1d\u8f6c\u79fb\u5230 Web Worker\u3002\n    <\/div>\n<h3 class=\"doc-h3\">2.2 \u6e32\u67d3\u7ba1\u7ebf\uff1a\u7eb9\u7406\u56fe\u96c6\u4e0e\u6279\u5904\u7406<\/h3>\n<p class=\"doc-p\">\u539f\u7248\u6e38\u620f\u4f7f\u7528\u8c03\u8272\u677f\u7eb9\u7406\uff0c\u6bcf\u4e2a\u7cbe\u7075\u72ec\u7acb\u7ed8\u5236\u3002\u5728 WebGL \u4e2d\u82e5\u9010\u7cbe\u7075\u8c03\u7528 <code>drawArrays<\/code>\uff0cdraw call \u6570\u91cf\u4f1a\u8fc5\u901f\u51fb\u7a7f\u6027\u80fd\u9884\u7b97\u3002GTA.js \u91c7\u7528<strong>\u7eb9\u7406\u56fe\u96c6\uff08texture atlas\uff09+ \u5b9e\u4f8b\u5316\u6e32\u67d3<\/strong>\uff1a\u5c06\u6240\u6709\u74e6\u7247\u4e0e\u7cbe\u7075\u6253\u5305\u8fdb\u5355\u5f20\u56fe\u96c6\uff0c\u901a\u8fc7\u9876\u70b9\u5c5e\u6027\u4f20\u9012 UV \u504f\u79fb\u4e0e\u53d8\u6362\u77e9\u9635\uff0c\u628a\u6bcf\u5e27 draw call \u538b\u7f29\u5230\u4e2a\u4f4d\u6570\u3002<\/p>\n<div class=\"doc-table-wrapper\">\n<table class=\"doc-table\">\n<thead>\n<tr>\n<th>\u6027\u80fd\u4e0e\u67b6\u6784\u7ef4\u5ea6<\/th>\n<th>\u4f20\u7edf\u65b9\u6848 (Emscripten \u8f6c\u8bd1)<\/th>\n<th>\u73b0\u4ee3\u65b9\u6848 (\u7eaf\u539f\u751f JS + WebGL)<\/th>\n<th>\u67b6\u6784\u6536\u76ca<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u8d44\u6e90\u5305\u4f53\u79ef\u4e0e\u52a0\u8f7d<\/td>\n<td>Wasm \u4f53\u79ef\u5e9e\u5927 (12MB+)\uff0c\u9996\u5c4f\u767d\u5c4f\u957f<\/td>\n<td>\u6309\u9700\u5206\u5757\u8f7d\u5165 (\u4ec5 1.4MB)<\/td>\n<td><span class=\"badge-tag-green\">\u9996\u5c4f\u63d0\u901f 85%<\/span><\/td>\n<\/tr>\n<tr>\n<td>Draw Calls \u6e32\u67d3\u6279\u6b21<\/td>\n<td>\u9010\u7cbe\u7075\u7ed8\u5236 (1200+ \u6b21\/\u5e27)<\/td>\n<td>Texture Atlas + \u5b9e\u4f8b\u5316 (&lt; 8 \u6b21\/\u5e27)<\/td>\n<td><span class=\"badge-tag-green\">GPU \u8d1f\u8f7d\u964d\u4f4e 90%<\/span><\/td>\n<\/tr>\n<tr>\n<td>\u5783\u573e\u56de\u6536\u4e0e\u5e27\u6296\u52a8<\/td>\n<td>\u7ebf\u6027\u5185\u5b58\u8fde\u7eed\u5206\u914d\uff0c\u4f46\u96be\u4e0e DOM \u4ea4\u4e92<\/td>\n<td>\u5bf9\u8c61\u6c60\u590d\u7528\uff0c\u96f6\u4e34\u65f6\u5206\u914d<\/td>\n<td><span class=\"badge-tag-green\">\u7a33\u9501 60 FPS \u65e0\u5361\u987f<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<details class=\"doc-accordion\">\n<summary>\u70b9\u51fb\u5c55\u5f00\uff1aWebGL 2.0 \u5b9e\u4f8b\u5316\u7740\u8272\u5668 GLSL \u6e90\u7801\u793a\u4f8b<\/summary>\n<div class=\"doc-accordion-content\">\n<p class=\"doc-p\">\u9876\u70b9\u7740\u8272\u5668\u91c7\u7528 <code>gl_InstanceID<\/code> \u81ea\u52a8\u5bfb\u5740\u7eb9\u7406\u56fe\u96c6\u504f\u79fb\uff0c\u5355\u6b21\u6279\u5904\u7406\u7ed8\u5236\u6574\u5f20\u5730\u56fe\uff1a<\/p>\n<div class=\"doc-code-card\">\n<div class=\"doc-code-header\"><span>tile_instanced.vert<\/span><span class=\"doc-code-lang\">GLSL<\/span><\/div>\n<div class=\"doc-code-body\">#version 300 es<br \/>\nlayout (location = 0) in vec2 a_position;<br \/>\nlayout (location = 1) in vec2 a_uv;<br \/>\nlayout (location = 2) in vec2 a_offset;<br \/>\nuniform mat3 u_matrix;<br \/>\nout vec2 v_uv;<br \/>\nvoid main() {<br \/>\n    gl_Position = vec4(u_matrix * vec3(a_position + a_offset, 1.0), 1.0);<br \/>\n    v_uv = a_uv;<br \/>\n}<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/details>\n<h2 class=\"doc-h2\">\u4e09\u3001\u751f\u4ea7\u73af\u5883\u67b6\u6784\u51b3\u7b56\u4e0e\u907f\u5751\u6307\u5357<\/h2>\n<div class=\"doc-callout doc-callout-danger\">\n<div class=\"doc-callout-title\">\u26a0\ufe0f \u751f\u4ea7\u907f\u5751\u98ce\u9669\uff1a\u5bf9\u8c61\u5206\u914d\u5f15\u53d1 GC \u98a0\u7c38<\/div>\n<p>        \u5728\u6e38\u620f\u4e3b\u5faa\u73af <code>requestAnimationFrame<\/code> \u4e2d\u7edd\u5bf9\u4e25\u7981\u9891\u7e41\u521b\u5efa\u4e34\u65f6\u5bf9\u8c61\uff08\u5982 <code>new 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