{"id":207030,"date":"2025-07-08T08:05:32","date_gmt":"2025-07-08T00:05:32","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207030\/"},"modified":"2025-07-08T08:05:32","modified_gmt":"2025-07-08T00:05:32","slug":"go-%e4%b8%ad%e7%9a%84%e5%b8%b8%e9%87%8f%e5%85%a8%e5%b1%80%e7%94%a8%e6%88%b7%e7%b1%bb%e5%9e%8b%e5%80%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207030\/","title":{"rendered":"Go \u4e2d\u7684\u5e38\u91cf\u5168\u5c40\u7528\u6237\u7c7b\u578b\u503c"},"content":{"rendered":"<p><b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>Go \u4e2d\u7684\u5e38\u91cf\u5168\u5c40\u7528\u6237\u7c7b\u578b\u503c<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-19 16:21:34<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u77e5\u8bc6\u70b9\u638c\u63e1\u4e86\uff0c\u8fd8\u9700\u8981\u4e0d\u65ad\u7ec3\u4e60\u624d\u80fd\u719f\u7ec3\u8fd0\u7528\u3002\u4e0b\u9762\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u4e2aGolang\u5f00\u53d1\u5b9e\u6218\uff0c\u624b\u628a\u624b\u6559\u5927\u5bb6\u5b66\u4e60\u300aGo \u4e2d\u7684\u5e38\u91cf\u5168\u5c40\u7528\u6237\u7c7b\u578b\u503c\u300b\uff0c\u5728\u5b9e\u73b0\u529f\u80fd\u7684\u8fc7\u7a0b\u4e2d\u4e5f\u5e26\u5927\u5bb6\u91cd\u65b0\u6e29\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6e29\u6545\u800c\u77e5\u65b0\uff0c\u56de\u5934\u770b\u770b\u8bf4\u4e0d\u5b9a\u53c8\u6709\u4e0d\u4e00\u6837\u7684\u611f\u609f\uff01<\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<p>\u6211\u60f3\u5b89\u6392\u8ba1\u7b97\u4e00\u4e2a\u5728\u521d\u59cb\u5316\u540e\u4e0d\u4f1a\u6539\u53d8\u7684\u503c\u3002<\/p>\n<p>\u6211\u4f1a\u4f7f\u7528 const\uff0c\u4f46 go \u5c06 const \u9650\u5236\u4e3a\u5185\u7f6e\u7c7b\u578b\uff0ciiuc\u3002<\/p>\n<p>\u6240\u4ee5\u6211\u60f3\u6211\u5e94\u8be5\u4f7f\u7528 <code>var<\/code>\uff0c\u5e76\u5728 <code>init()<\/code> \u4e2d\u8ba1\u7b97\u5b83\u4eec\u7684\u521d\u59cb\u503c<\/p>\n<pre>var (\n    \/\/ ScreenBounds is the visible screen\n    ScreenBounds types.Rectangle\n\n    \/\/ BoardBounds is the total board space\n    BoardBounds  types.Rectangle\n)\n\nfunc init() {\n    ScreenBounds := types.RectFromPointSize(\n        types.Pt(-ScreenWidth\/2, 0),\n        types.Pt(ScreenWidth, ScreenHeight))\n\n    BoardBounds := ScreenBounds\n    BoardBounds.Max.Y += TankSpeed * TotalFrames\n}<\/pre>\n<p>\u8fd9\u975e\u5e38\u597d &#8211; \u4f46\u662f\u9664\u4e86\u5c06\u53d8\u91cf\u66f4\u6539\u4e3a\u672a\u5bfc\u51fa\u7684\u540d\u79f0\uff0c\u7136\u540e\u4f7f\u7528\u51fd\u6570\u8bbf\u95ee\u5668\u8fd4\u56de\u5b83\u4eec\u7684\u503c\u4e4b\u5916\uff0c\u6709\u6ca1\u6709\u4e00\u79cd\u65b9\u6cd5\u53ef\u4ee5\u201c\u9501\u5b9a\u201d\u8ba1\u7b97\u540e\u7684\u503c\uff1f<\/p>\n<p> <\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p> <\/p>\n<p>\u4e0d\uff0c\u6ca1\u6709\u3002\u53d8\u91cf\u4e4b\u6240\u4ee5\u88ab\u79f0\u4e3a\u53d8\u91cf\uff0c\u662f\u56e0\u4e3a\u5b83\u4eec\u7684\u503c\u53ef\u4ee5\u6539\u53d8\u3002\u5728 go \u4e2d\u6ca1\u6709\u201cfinal\u201d\u6216\u7c7b\u4f3c\u7684\u4fee\u9970\u7b26\u3002\u8bed\u8a00\u7b80\u5355\u3002<\/p>\n<p>\u4fdd\u62a4\u53d8\u91cf\u4e0d\u88ab\u5916\u90e8\u66f4\u6539\u7684\u552f\u4e00\u65b9\u6cd5\u662f\u4f7f\u5176\u4e0d\u5bfc\u51fa\uff0c\u662f\u7684\uff0c\u90a3\u4e48\u60a8\u9700\u8981\u5bfc\u51fa\u51fd\u6570\u6765\u83b7\u53d6\u5b83\u4eec\u7684\u503c\u3002<\/p>\n<p>\u89e3\u51b3\u65b9\u6cd5\u53ef\u80fd\u662f\u4e0d\u4f7f\u7528\u53d8\u91cf\u800c\u4f7f\u7528\u5e38\u91cf\u3002\u662f\u7684\uff0c\u4f60\u4e0d\u80fd\u6709\u7ed3\u6784\u5e38\u91cf\uff0c\u4f46\u5982\u679c\u7ed3\u6784\u5f88\u5c0f\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u5b83\u7684\u5b57\u6bb5\u4f5c\u4e3a\u5355\u72ec\u7684\u5e38\u91cf\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>const (\n    ScreenMinX = ScreenWidth \/ 2\n    ScreenMinY = ScreenHeight \/ 2\n    ScreenMaxX = ScreenWidth\n    ScreenMaxY = ScreenHeight\n)<\/pre>\n<p>\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aGo \u4e2d\u7684\u5e38\u91cf\u5168\u5c40\u7528\u6237\u7c7b\u578b\u503c\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f53\u524d\u4f4d\u7f6e\uff1a &gt; &gt; &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207030","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207030","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207030"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207030\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207030"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207030"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}