我的代码似乎有些问题，但我无法确定是什么。我试图调用pointerlockchange API来禁用指针并使用鼠标作为FPS控制器。问题在于总是触发pointerlockerror，并且我收到一个“设置指针锁定时出错！”的消息。
该函数在$(document).ready内部调用。以下是代码：
function initLock() {
var havePointerLock = 'pointerLockElement' in document || 'mozPointerLockElement' in document || 'webkitPointerLockElement' in document;
if ( havePointerLock ) {
var element = document.body;
console.log('Cathing element', element);
var pointerlockchange = function ( event ) {
if ( document.pointerLockElement === element || document.mozPointerLockElement === element || document.webkitPointerLockElement === element ) {
controls.enabled = true;
console.log('Pointer lock enabled!')
}
else {
controls.enabled = false;
}
}
var pointerlockerror = function ( event ) {
console.log('Error setting pointer lock!');
}
// Hook pointer lock state change events
document.addEventListener( 'pointerlockchange', pointerlockchange, false );
document.addEventListener( 'mozpointerlockchange', pointerlockchange, false );
document.addEventListener( 'webkitpointerlockchange', pointerlockchange, false );
document.addEventListener( 'pointerlockerror', pointerlockerror, false );
document.addEventListener( 'mozpointerlockerror', pointerlockerror, false );
document.addEventListener( 'webkitpointerlockerror', pointerlockerror, false );
// Ask the browser to lock the pointer
element.requestPointerLock = element.requestPointerLock || element.mozRequestPointerLock || element.webkitRequestPointerLock;
if ( /Firefox/i.test( navigator.userAgent ) ) {
var fullscreenchange = function ( event ) {
if ( document.fullscreenElement === element || document.mozFullscreenElement === element || document.mozFullScreenElement === element ) {
document.removeEventListener( 'fullscreenchange', fullscreenchange );
document.removeEventListener( 'mozfullscreenchange', fullscreenchange );
element.requestPointerLock();
}
}
document.addEventListener( 'fullscreenchange', fullscreenchange, false );
document.addEventListener( 'mozfullscreenchange', fullscreenchange, false );
element.requestFullscreen = element.requestFullscreen || element.mozRequestFullscreen || element.mozRequestFullScreen || element.webkitRequestFullscreen;
element.requestFullscreen();
}
else {
element.requestPointerLock();
}
}
else {
console.log('Sorry, pointer lock cannot be set.');
}
}