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159 lines
3.4 KiB
159 lines
3.4 KiB
2 years ago
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<!DOCTYPE html>
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<html lang="zh">
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<head>
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<meta charset="utf-8" />
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<base href="../../../" />
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<script src="page.js"></script>
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<link type="text/css" rel="stylesheet" href="page.css" />
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</head>
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<body>
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[page:EventDispatcher] →
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<h1>指针锁定控制器（[name]）</h1>
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<p class="desc">
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该类的实现是基于[link:https://developer.mozilla.org/en-US/docs/Web/API/Pointer_Lock_API Pointer Lock API]的。
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对于第一人称3D游戏来说， [name] 是一个非常完美的选择。
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</p>
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<h2>代码示例</h2>
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<code>
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const controls = new PointerLockControls( camera, document.body );
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// add event listener to show/hide a UI (e.g. the game's menu)
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controls.addEventListener( 'lock', function () {
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menu.style.display = 'none';
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} );
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controls.addEventListener( 'unlock', function () {
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menu.style.display = 'block';
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} );
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</code>
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<h2>例子</h2>
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<p>[example:misc_controls_pointerlock misc / controls / pointerlock ]</p>
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<h2>Constructor</h2>
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<h3>[name]( [param:Camera camera], [param:HTMLDOMElement domElement] )</h3>
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<p>
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<p>
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[page:Camera camera]: 渲染场景的摄像机。
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</p>
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<p>
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[page:HTMLDOMElement domElement]: 用于事件监听的HTML元素。
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</p>
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<p>
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创建一个新的 [name] 实例。
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</p>
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</p>
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<h2>事件</h2>
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<h3>change</h3>
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<p>
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当用户移动鼠标时触发。
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</p>
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<h3>lock</h3>
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<p>
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当指针状态为 “locked” （即鼠标被捕获）时触发。
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</p>
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<h3>unlock</h3>
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<p>
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当指针状态为 “unlocked” （即鼠标不再被捕获）时触发。
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</p>
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<h2>属性</h2>
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<h3>[property:HTMLDOMElement domElement]</h3>
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<p>
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该 HTMLDOMElement 用于监听鼠标/触摸事件，该属性必须在构造函数中传入。在此处改变它将不会设置新的事件监听。
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</p>
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<h3>[property:Boolean isLocked]</h3>
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<p>
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控制器是否被锁定。
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</p>
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<h3>[property:Float maxPolarAngle]</h3>
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<p>
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Camera pitch, upper limit. Range is 0 to Math.PI radians. Default is Math.PI.
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</p>
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<h3>[property:Float minPolarAngle]</h3>
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<p>
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Camera pitch, lower limit. Range is 0 to Math.PI radians. Default is 0.
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</p>
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<h2>Methods</h2>
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<p>共有方法请参见其基类[page:EventDispatcher]。</p>
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<h3>[method:undefined connect] ()</h3>
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<p>
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添加控制器的事件监听。
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</p>
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<h3>[method:undefined disconnect] ()</h3>
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<p>
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移除控制器的事件监听。
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</p>
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<h3>[method:Vector3 getDirection] ( [param:Vector3 target] )</h3>
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<p>
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<p>
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[page:Vector3 target]: 目标向量。
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</p>
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<p>
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返回摄像机的观看方向。
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</p>
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</p>
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<h3>[method:undefined lock] ()</h3>
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<p>
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激活指针锁定。
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</p>
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<h3>[method:undefined moveForward] ( [param:Number distance] )</h3>
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<p>
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<p>
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[page:Number distance]: 距离（区分正负）。
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</p>
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<p>
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平行于xz平面，向前移动摄像机。假定camera.up是y朝上。
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</p>
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</p>
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<h3>[method:undefined moveRight] ( [param:Number distance] )</h3>
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<p>
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<p>
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[page:Number distance]: 距离（区分正负）。
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</p>
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<p>
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平行于xz平面，向侧面移动摄像机。
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</p>
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</p>
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<h3>[method:undefined unlock] ()</h3>
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<p>
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退出指针锁定。
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</p>
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<h2>源代码</h2>
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<p>
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[link:https://github.com/mrdoob/three.js/blob/master/examples/jsm/controls/PointerLockControls.js examples/jsm/controls/PointerLockControls.js]
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</p>
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</body>
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</html>
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