{"id":84,"date":"2019-10-05T21:41:09","date_gmt":"2019-10-05T13:41:09","guid":{"rendered":"http:\/\/www.blinkedu.cn\/?p=84"},"modified":"2019-10-05T21:41:09","modified_gmt":"2019-10-05T13:41:09","slug":"unity%ef%bc%9a%e4%bd%bf%e7%94%a8linerenderer%e7%bb%98%e5%88%b6%e5%85%b7%e6%9c%89%e7%89%a9%e7%90%86%e6%95%88%e6%9e%9c%e7%9a%84%e7%ba%bf","status":"publish","type":"post","link":"https:\/\/www.blinkedu.cn\/index.php\/2019\/10\/05\/unity%ef%bc%9a%e4%bd%bf%e7%94%a8linerenderer%e7%bb%98%e5%88%b6%e5%85%b7%e6%9c%89%e7%89%a9%e7%90%86%e6%95%88%e6%9e%9c%e7%9a%84%e7%ba%bf\/","title":{"rendered":"Unity\uff1a\u4f7f\u7528LineRenderer\u7ed8\u5236\u5177\u6709\u7269\u7406\u6548\u679c\u7684\u7ebf"},"content":{"rendered":"<p>\u8bb0\u5f97\u4ee5\u524d\u73a9\u8fc7\u4e00\u4e2a\u53eb\u300a\u7269\u7406\u753b\u7ebf\u300b\u7684\u6e38\u620f\uff0c\u5f53\u65f6\u89c9\u5f97\u4e0a\u9762\u753b\u51fa\u7684\u7ebf\u5177\u6709\u7269\u7406\u6548\u679c\u633a\u597d\u73a9\u7684\u3002\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u60f3\u5b9e\u73b0\u4e00\u4e0b\u8fd9\u4e2a\u753b\u7ebf\u7684\u529f\u80fd\uff0c\u4e8e\u662f\u5728\u7f51\u4e0a\u627e\u5b9e\u73b0\u7684\u65b9\u6cd5\uff0c\u4f46\u662f\u76f8\u5173\u7684\u535a\u5ba2\u975e\u5e38\u7684\u5c11\uff08\u57fa\u672c\u4e0a\u6ca1\u627e\u5230\uff0c\u5927\u591a\u53ea\u662f\u7ed8\u5236\u7ebf\uff0c\u6ca1\u6709\u7269\u7406\u6548\u679c\uff09\uff0c\u540e\u6765\u81ea\u5df1\u7ecf\u8fc7\u4e00\u6bb5\u65f6\u95f4\u7684\u5c1d\u8bd5\uff0c\u7b97\u662f\u57fa\u672c\u5b9e\u73b0\u4e86\u7ed8\u5236\u5177\u6709\u7269\u7406\u6548\u679c\u7684\u7ebf\u7684\u529f\u80fd\u3002<\/p>\n<h2>\u6b65\u9aa4<\/h2>\n<p><strong>1. \u521b\u5efa\u4e00\u4e2a2D\u7684\u5de5\u7a0b\uff0c\u521b\u5efa\u4e00\u4e2a\u7a7a\u573a\u666f\uff0c\u5e76\u521b\u5efa\u4e00\u4e2a\u6750\u8d28\u7403\uff0c\u5e76\u8bbe\u7f6e\u989c\u8272\uff08\u5373\uff1a\u7ebf\u989c\u8272\uff09<\/strong><\/p>\n<p>\u6ce8\u610f\uff1a\u6444\u50cf\u673a\u7684Tag\u5fc5\u987b\u4e3aMainCamera,\u5e76\u4e14Projection\u4e3aOrthographic\u6a21\u5f0f<\/p>\n<p><img decoding=\"async\" layer-src=\"https:\/\/i.loli.net\/2019\/10\/05\/qCowIN1tKOSMlVj.png\" src=\"https:\/\/i.loli.net\/2019\/10\/05\/qCowIN1tKOSMlVj.png\" alt=\"\u300aUnity\uff1a\u4f7f\u7528LineRenderer\u7ed8\u5236\u5177\u6709\u7269\u7406\u6548\u679c\u7684\u7ebf\u300b\" \/><\/p>\n<p><strong>2. \u521b\u5efa\u4e00\u4e2a\u7a7a\u7269\u4f53\uff0c\u5e76\u6dfb\u52a0BoxCollider\u7ec4\u4ef6<\/strong><\/p>\n<ul>\n<li>\u4f5c\u7528\uff1a\u4f5c\u4e3a\u5730\u9762\uff0c\u9632\u6b62\u7ebf\u6761\u843d\u5230\u5c4f\u5e55\u5916\u9762<br \/>\n<img decoding=\"async\" layer-src=\"https:\/\/i.loli.net\/2019\/10\/05\/yQvZtsMi8aWkE4u.png\" src=\"https:\/\/i.loli.net\/2019\/10\/05\/yQvZtsMi8aWkE4u.png\" alt=\"\u300aUnity\uff1a\u4f7f\u7528LineRenderer\u7ed8\u5236\u5177\u6709\u7269\u7406\u6548\u679c\u7684\u7ebf\u300b\" \/><\/li>\n<\/ul>\n<p><strong>3. \u7f16\u5199\u811a\u672c<\/strong><\/p>\n<p>\u6ce8\u610f\uff1a\u6dfb\u52a0LineRenderer\u7ec4\u4ef6\u65f6\uff0c\u8981\u5c06LineRenderer\u7ec4\u4ef6\u7684useWorldSpace\u8bbe\u7f6e\u4e3afalse<\/p>\n<p><code>line.useWorldSpace = false;<\/code><br \/>\n\u5982\u679c\u4e0d\u8bbe\u7f6e\u4e3afalse\uff0cLineRenderer\u4e0d\u4f1a\u968f\u7740GameObject\u4e0b\u843d<\/p>\n<pre><code class=\"language-csharp line-numbers\">using System.Collections;\nusing System.Collections.Generic;\nusing UnityEngine;\n\npublic class DrawLine : MonoBehaviour\n{\n    [SerializeField]\n    private float lineWidth = 0.1f; \/\/ \u7ebf\u7684\u5bbd\u5ea6\n    [SerializeField]\n    private Material material;\/\/ \u7ebf\u7684\u989c\u8272\u6750\u8d28\u7403\n    private LineRenderer line;\/\/ \u7ed8\u5236\u7684\u7ebf\n    private int count = 0;\/\/ \u7ebf\u4e0a\u70b9\u7684\u4e2a\u6570\n    private List&lt;Vector2&gt; posList = new List&lt;Vector2&gt;(); \/\/ \u6240\u6709\u70b9\u7684\u4f4d\u7f6e\n\n    private void Update()\n    {\n        if (Input.GetMouseButtonDown(0))\n        {\n            StartDraw();\n        }\n\n        if (Input.GetMouseButton(0))\n        {\n            Drawing();\n        }\n\n        if (Input.GetMouseButtonUp(0))\n        {\n            EndDraw();\n        }\n    }\n\n    \/\/ \u5f00\u59cb\u7ed8\u5236\n    private void StartDraw()\n    {\n        \/\/ \u5f00\u59cb\u7ed8\u5236\u524d\u91cd\u7f6e\u4e0a\u4e00\u6b21\u7ed8\u5236\u7684\u6570\u636e\n        posList.Clear();\n        count = 0;\n        \/\/ \u521b\u5efa\u4e00\u4e2a\u7a7a\u7269\u4f53\u5e76\u6dfb\u52a0LineRenderer\u7ec4\u4ef6\n        GameObject lineGo = new GameObject(&quot;Line&quot;);\n        line = lineGo.AddComponent&lt;LineRenderer&gt;();\n        \/\/ \u8bbe\u7f6eLineRenderer\u7684\u6750\u8d28\n        line.material = material;\n        \/\/ \u8bbe\u7f6eLineRenderer\u7684\u5f00\u59cb\u548c\u7ed3\u675f\u7684\u5bbd\u5ea6\n        line.startWidth = line.endWidth = lineWidth;\n        \/\/ \u91cd\u70b9\uff1a\u8bbe\u7f6elineRenderer\u4e0d\u4f7f\u7528\u4e16\u754c\u7a7a\u95f4\uff0c\u5982\u679c\u8bbe\u7f6e\u4e3atrue\uff0clineRenderer\u4e0d\u4f1a\u53d7\u5230\u6240\u5728GameObject\u7684\u4f4d\u7f6e\u5f71\u54cd\n        line.useWorldSpace = false;\n    }\n\n    \/\/ \u7ed8\u5236\u4e2d\n    private void Drawing()\n    {\n        count++;\n        line.positionCount = count;\n        Vector2 v = Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, 0));\n        line.SetPosition(count - 1, v);\n        posList.Add(v);\n    }\n\n    \/\/ \u7ed3\u675f\u7ed8\u5236\n    private void EndDraw()\n    {\n        \/\/ \u6dfb\u52a0\u8fb9\u7f18\u78b0\u649e\u5668\uff0c\u5e76\u8bbe\u7f6e\u70b9\u548c\u8fb9\u7f18\u534a\u5f84\n        EdgeCollider2D col = line.gameObject.AddComponent&lt;EdgeCollider2D&gt;();\n        col.points = posList.ToArray();\n        col.edgeRadius = 0.05f;\n        \/\/ \u6dfb\u52a0\u521a\u4f53\n        Rigidbody2D rig = line.gameObject.AddComponent&lt;Rigidbody2D&gt;();\n        rig.useAutoMass = true;\n        rig.collisionDetectionMode = CollisionDetectionMode2D.Continuous;\n    }\n}\n\n<\/code><\/pre>\n<h2>\u6548\u679c<\/h2>\n<p><a href=\"https:\/\/i.loli.net\/2019\/10\/05\/28iYyICnAkGqc9H.gif\" target=\"_blank\"  rel=\"nofollow\" ><img decoding=\"async\" layer-src=\"https:\/\/i.loli.net\/2019\/10\/05\/28iYyICnAkGqc9H.gif\" src=\"https:\/\/i.loli.net\/2019\/10\/05\/28iYyICnAkGqc9H.gif\" alt=\"\u300aUnity\uff1a\u4f7f\u7528LineRenderer\u7ed8\u5236\u5177\u6709\u7269\u7406\u6548\u679c\u7684\u7ebf\u300b\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8bb0\u5f97\u4ee5\u524d\u73a9\u8fc7\u4e00\u4e2a\u53eb\u300a\u7269\u7406\u753b\u7ebf\u300b\u7684\u6e38\u620f\uff0c\u5f53\u65f6\u89c9\u5f97\u4e0a\u9762\u753b\u51fa\u7684\u7ebf\u5177\u6709\u7269\u7406\u6548\u679c\u633a\u597d\u73a9\u7684\u3002\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u60f3\u5b9e\u73b0\u4e00\u4e0b\u8fd9\u4e2a\u753b\u7ebf\u7684\u529f\u80fd\uff0c\u4e8e\u662f\u5728\u7f51\u4e0a\u627e\u5b9e\u73b0\u7684\u65b9\u6cd5\uff0c\u4f46\u662f\u76f8\u5173\u7684\u535a\u5ba2\u975e\u5e38\u7684\u5c11\uff08\u57fa\u672c\u4e0a\u6ca1\u627e\u5230\uff0c\u5927\u591a\u53ea\u662f\u7ed8\u5236\u7ebf\uff0c\u6ca1\u6709\u7269\u7406\u6548\u679c\uff09\uff0c\u540e\u6765\u81ea\u5df1\u7ecf\u8fc7\u4e00\u6bb5\u65f6\u95f4\u7684\u5c1d\u8bd5\uff0c\u7b97\u662f\u57fa\u672c\u5b9e\u73b0\u4e86\u7ed8\u5236\u5177\u6709\u7269\u7406\u6548\u679c\u7684\u7ebf\u7684\u529f\u80fd\u3002 \u6b65\u9aa4 1. \u521b\u5efa\u4e00\u4e2a2D\u7684\u5de5\u7a0b\uff0c\u521b\u5efa\u4e00\u4e2a\u7a7a\u573a\u666f\uff0c\u5e76\u521b\u5efa\u4e00\u2026\u2026<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-84","post","type-post","status-publish","format-standard","hentry","category-unity"],"_links":{"self":[{"href":"https:\/\/www.blinkedu.cn\/index.php\/wp-json\/wp\/v2\/posts\/84"}],"collection":[{"href":"https:\/\/www.blinkedu.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.blinkedu.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.blinkedu.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.blinkedu.cn\/index.php\/wp-json\/wp\/v2\/comments?post=84"}],"version-history":[{"count":0,"href":"https:\/\/www.blinkedu.cn\/index.php\/wp-json\/wp\/v2\/posts\/84\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.blinkedu.cn\/index.php\/wp-json\/wp\/v2\/media?parent=84"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.blinkedu.cn\/index.php\/wp-json\/wp\/v2\/categories?post=84"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.blinkedu.cn\/index.php\/wp-json\/wp\/v2\/tags?post=84"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}